CN219412255U - Access door locking mechanism - Google Patents

Abstract

The utility model discloses an access door locking mechanism which comprises an access door and a door frame, wherein one side of the door frame is connected with the access door through a hinge, the access door further comprises a locking pin, a locking handle, a mandrel, a support and a torsion spring, the locking pin is arranged on the other side of the door frame, the locking handle capable of being clamped and combined with the locking pin is arranged on the access door, the locking handle is rotatably inserted on the support through the mandrel, the support is fixed on the access door, the torsion spring for providing locking force for the locking handle is sleeved on the mandrel, a clamping groove matched with the locking pin is formed in the locking handle, and the clamping groove of the locking handle can completely hook the locking pin. Through the mode, the utility model has simple structure, ensures that the access door can be opened conveniently and rapidly, can be locked reliably, and avoids the abnormal sound of the access door.

Description

Access door locking mechanism

Technical Field

The utility model relates to the technical field of underground coal mine explosion-proof transport vehicles, in particular to a vehicle overhaul door locking mechanism.

Background

Along with the promotion of mining modernization progress, the customer has had higher requirement to the rationality, the security of mining vehicle's overall quality and structure, and special heavy transportation vehicle in pit is because the safety requirement such as anti-drop, anti-roll turn, and covering such as vehicle access door all adopts high strength thick steel sheet to make, and the locking mode that access door locking is commonly used at present has two kinds: firstly, the door lock is locked, secondly, the fastener is locked, and the common locking mode has the following defects: the door lock is convenient to open, but the problem that the locking is not firm and abnormal sound is easy to generate for the vehicle exists, and the door lock is easy to damage due to long-time vibration caused by the running of the vehicle, so that the running of the vehicle is influenced; the fastener locking effect is good, but has the access door and opens inconvenient problem.

Therefore, the access door locking mechanism is designed, not only can ensure the reliable locking of the access door, but also can realize the convenient opening of the access door

Disclosure of Invention

The utility model mainly solves the technical problem of providing the access door locking mechanism, which ensures that an access door can be opened conveniently and rapidly and can be locked reliably, and the abnormal sound problem of the access door is avoided.

In order to solve the technical problems, the utility model adopts a technical scheme that: the utility model provides an access door locking mechanism, this kind of access door locking mechanism includes access door and door frame, there is the access door frame one side through hinge connection, still includes locking pin, locking handle, dabber, support and torsion spring, the locking pin is installed to the door frame opposite side, install the locking handle that can block the block with the locking pin on the access door, the locking handle passes through the dabber and rotates cartridge on the support, and the support is fixed in on the access door, the dabber cover has the torsion spring that provides locking force for locking handle, offered on the locking handle with locking pin complex draw-in groove, locking handle's draw-in groove can be hooked the locking pin completely.

Preferably, the locking handle is provided with a torsion spring limit bolt, one side force arm of the torsion spring is propped against the access door, and one side force arm of the torsion spring is propped against the torsion spring limit bolt on the locking handle.

The locking handle is arranged in the access door, the support is fixed on the inner side of the access door, and the access door is provided with an opening which is convenient for manually operating the locking handle.

Preferably, a shield opposite to the opening is further installed in the access door, and a limiting rod is installed on the shield and opposite to the handle of the locking handle.

Preferably, the limiting rod is sleeved with a rubber shock pad.

Compared with the prior art, the utility model has the beneficial effects that:

the locking handle is rotated around the mandrel, the locking pin is fixed on the door frame, the locking force is provided by the torsion spring, the locking handle is effectively self-locked, the access door is prevented from shaking to generate abnormal sound, and the access door is ensured to be opened conveniently at any time.

Drawings

Fig. 1 is a schematic structural view of an access door locking mechanism.

Fig. 2 is a schematic view of the internal structure of an access door locking mechanism.

Fig. 3 is a schematic view of another view of an access door locking mechanism.

Fig. 4 is a side view of an access door locking mechanism.

Wherein, 1, an access door, 2, a door frame, 3, a locking pin, 4, a locking handle, 40, a clamping groove, 5 and a mandrel, 6, a support, 7, a torsion spring, 8, a torsion spring limit bolt, 9, a shield, 10 and a limit rod.

Detailed Description

The preferred embodiments of the present utility model will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making clear and defining the scope of the present utility model.

Referring to fig. 1 to 4, an embodiment of the present utility model includes:

the utility model provides an access door locking mechanism, this kind of access door locking mechanism includes access door 1, door frame 2, locking pin 3, locking handle 4, dabber 5, support 6 and torsion spring 7, door frame 2 one side is through hinge connection has access door 1, locking pin 3 is installed to door frame 2 opposite side, install the locking handle 4 that can block the fit with locking pin 3 on the access door 1, locking handle 4 rotates cartridge on support 6 through dabber 5, and support 6 is fixed in on access door 1, the cover has torsion spring 7 that provides locking force for locking handle 4 on the dabber 5, offer on the locking handle 4 with locking pin 3 complex draw-in groove 40, locking handle 4's draw-in groove 40 can be hooked on locking pin 3 completely.

The torsion spring limit bolt 8 is arranged on the locking handle 4, one side force arm of the torsion spring 7 is propped against the access door 1, one side force arm of the torsion spring 7 is propped against the torsion spring limit bolt 8 on the locking handle 4, and the locking force of the locking handle 4 is towards the inside of the door under the torsion action of the torsion spring 7.

The locking handle 4 is arranged in the access door 1, the appearance is attractive, falling objects are prevented from being injured by smashing and touching the locking mechanism, the support 6 is fixed on the inner side of the access door 1, and the access door 1 is provided with an opening which is convenient for manually operating the locking handle 4.

The access door 1 is internally provided with a shield 9 opposite to the opening, the shield 9 is provided with a limiting rod 10, the limiting rod 10 is opposite to the handle of the locking handle 4, and limits the locking travel of the locking handle 4, so that the locking handle 4 is positioned at a convenient operation position.

The limiting rod 10 is sleeved with a rubber shock pad.

When the access door locking mechanism works, the locking pin 3 is designed at the position of the door frame 2, the mandrel 5 is designed on the access door 1, the locking handle 4 taking the mandrel 5 as a hinge point is designed, the torsion spring 7 is used for providing locking force for the locking handle 4, the clamping groove 40 of the locking handle 4 is guaranteed to fully hook the locking pin 3, self-locking is realized, the limiting rod 10 with the rubber shock pad is designed on the access door 1, and the limiting of the locking handle 4 is realized when the access door 1 is opened.

The access door locking mechanism disclosed by the utility model can ensure that an access door can be opened conveniently and rapidly and can be locked reliably, so that the abnormal sound problem of the access door is avoided.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.

Claims (5)

1. The utility model provides an access door locking mechanism, includes access door (1) and door frame (2), door frame (2) one side has access door (1), its characterized in that through hinge connection: still include locking pin (3), locking handle (4), dabber (5), support (6) and torsion spring (7), locking pin (3) are installed to door frame (2) opposite side, install locking handle (4) that can with locking pin (3) block fit on access door (1), locking handle (4) rotate cartridge on support (6) through dabber (5), support (6) are fixed in on access door (1), the cover has torsion spring (7) that provide locking force for locking handle (4) on dabber (5), offer on locking handle (4) with locking pin (3) complex draw-in groove (40).

2. An access door locking mechanism as recited in claim 1, wherein: the locking handle (4) is provided with a torsion spring limit bolt (8), one side force arm of the torsion spring (7) is propped against the access door (1), and one side force arm of the torsion spring (7) is propped against the torsion spring limit bolt (8) on the locking handle (4).

3. An access door locking mechanism as recited in claim 1, wherein: the locking handle (4) is arranged in the access door (1), the support (6) is fixed on the inner side of the access door (1), and the access door (1) is provided with an opening which is convenient for manually operating the locking handle (4).

4. A service door locking mechanism according to claim 3, wherein: the access door (1) is internally provided with a shield (9) opposite to the opening, the shield (9) is provided with a limit rod (10), and the limit rod (10) is opposite to the handle of the locking handle (4).

5. The service door locking mechanism according to claim 4, wherein: and a rubber shock pad is sleeved on the limiting rod (10).