Trouble inserting multiple records into DB w/Laravel and Query Builder

Hi,
I have an array I'd like to insert into a table. I'm  using laravel 5 and  Query Builder.
$saleHours array looks like this:

array:7 [▼
  1 => array:5 [▼
    "'open'" => "09:00:00"
    "'closed'" => "21:00:00"
    "department" => 0
    "dow" => 1
    "dealership_id" => "21aa5bb3-b667-3cc6-82f3-56abc164c656"
  ]
  2 => array:5 [▼
    "'open'" => "09:00:00"
    "'closed'" => "21:00:00"
    "department" => 0
    "dow" => 2
    "dealership_id" => "21aa5bb3-b667-3cc6-82f3-56abc164c656"
  ]
  3 => array:5 [▼
    "'open'" => "09:00:00"
    "'closed'" => "21:00:00"
    "department" => 0
    "dow" => 3
    "dealership_id" => "21aa5bb3-b667-3cc6-82f3-56abc164c656"
  ]
  4 => array:5 [▼
    "'open'" => "09:00:00"
    "'closed'" => "21:00:00"
    "department" => 0
    "dow" => 4
    "dealership_id" => "21aa5bb3-b667-3cc6-82f3-56abc164c656"
  ]
  5 => array:5 [▼
    "'open'" => "09:00:00"
    "'closed'" => "18:00:00"
    "department" => 0
    "dow" => 5
    "dealership_id" => "21aa5bb3-b667-3cc6-82f3-56abc164c656"
  ]
  6 => array:5 [▼
    "'open'" => "09:00:00"
    "'closed'" => "17:00:00"
    "department" => 0
    "dow" => 6
    "dealership_id" => "21aa5bb3-b667-3cc6-82f3-56abc164c656"
  ]
  7 => array:5 [▼
    "'open'" => "00:00:00"
    "'closed'" => "00:00:00"
    "department" => 0
    "dow" => 7
    "dealership_id" => "21aa5bb3-b667-3cc6-82f3-56abc164c656"
  ]
]

Select allOpen in new window

I've tried a few ideas like:

DB::table('dealership_hours')->insert($salesHours);

and then tried drilling down further:

foreach($salesHours as $sales){
DB::table('dealership_hours')->insert($sales);
}

Both with similiar errors. The first attempts errors gives me:

SQLSTATE[42S22]: Column not found: 1054 Unknown column ''closed'' in 'field list' (SQL: insert into `dealership_hours` (`'closed'`, `'open'`, `dealership_id`, `department`, `dow`) values (21:00:00, 09:00:00, 21aa5bb3-b667-3cc6-82f3-56abc164c656, 0, 1), (21:00:00, 09:00:00, 21aa5bb3-b667-3cc6-82f3-56abc164c656, 0, 2), (21:00:00, 09:00:00, 21aa5bb3-b667-3cc6-82f3-56abc164c656, 0, 3), (21:00:00, 09:00:00, 21aa5bb3-b667-3cc6-82f3-56abc164c656, 0, 4), (18:00:00, 09:00:00, 21aa5bb3-b667-3cc6-82f3-56abc164c656, 0, 5), (17:00:00, 09:00:00, 21aa5bb3-b667-3cc6-82f3-56abc164c656, 0, 6), (00:00:00, 00:00:00, 21aa5bb3-b667-3cc6-82f3-56abc164c656, 0, 7))

Select allOpen in new window

And continues like this:

 in Connection.php line 620
at Connection->runQueryCallback('insert into `dealership_hours` (`'closed'`, `'open'`, `dealership_id`, `department`, `dow`) values (?, ?, ?, ?, ?), (?, ?, ?, ?, ?), (?, ?, ?, ?, ?), (?, ?, ?, ?, ?), (?, ?, ?, ?, ?), (?, ?, ?, ?, ?), (?, ?, ?, ?, ?)', array('21:00:00', '09:00:00', '21aa5bb3-b667-3cc6-82f3-56abc164c656', '0', '1', '21:00:00', '09:00:00', '21aa5bb3-b667-3cc6-82f3-56abc164c656', '0', '2', '21:00:00', '09:00:00', '21aa5bb3-b667-3cc6-82f3-56abc164c656', '0', '3', '21:00:00', '09:00:00', '21aa5bb3-b667-3cc6-82f3-56abc164c656', '0', '4', '18:00:00', '09:00:00', '21aa5bb3-b667-3cc6-82f3-56abc164c656', '0', '5', '17:00:00', '09:00:00', '21aa5bb3-b667-3cc6-82f3-56abc164c656', '0', '6', '00:00:00', '00:00:00', '21aa5bb3-b667-3cc6-82f3-56abc164c656', '0', '7'), object(Closure)) in Connection.php line 576

Select allOpen in new window

Any idea how I should be inserting?