CN214943286U

CN214943286U - Door lock structure of crane cab

Info

Publication number: CN214943286U
Application number: CN202120364900.XU
Authority: CN
Inventors: 韩禹门; 陈寅领; 徐康
Original assignee: Zhejiang San'gang Lifting Electrical Appliance Co ltd
Current assignee: Zhejiang San'gang Lifting Electrical Appliance Co ltd
Priority date: 2021-02-07
Filing date: 2021-02-07
Publication date: 2021-11-30
Anticipated expiration: 2031-02-07

Abstract

The utility model provides a lock structure of hoist cab belongs to hoisting machinery technical field. The door lock structure solves the problem that the existing door lock structure of the crane cab is easy to collide with a bracket for installing a lock rod when an operator enters and exits the cab. This door lock structure of hoist cab, including lock core and locking lever, the lock core is installed on cab door, and the locking lever passes through the support to be fixed in the border department that cab shell is close to cab door, and the locking lever can stretch in the lock core and be locked by the lock core, and door lock structure is still including fixing the anticollision cover that covers the support on cab shell, and the anticollision cover is for uncovered and have the protruding edge outstanding to cab door towards one side of cab door. The door lock structure of the crane cab not only protects the operator, but also prevents the position of the lock rod from being displaced due to continuous impact after being used for a long time, and has simple structure and strong universality.

Description

Door lock structure of crane cab

Technical Field

The utility model belongs to the technical field of hoisting machinery, a lock structure of hoist cab is related to.

Background

The cab of the crane is an important component of the crane, the cab is provided with an operating device, an electric control device, a cab seat and other important control devices, an operator needs to open a cab door to enter the cab to operate the crane, the cab can keep the indoor space closed and ensure the safety of the operator after the cab door is closed, and the cab is provided with a door lock.

Existing door locks for cabs, such as chinese patent application No. 95205835.9; the publication No. CN2226104Y discloses an anti-picking door lock, in which a thin-type bolt is installed in a lock body, a rectangular bolt cover is arranged at the bolt position at the front end of the lock body, and a lock catch is arranged on a lock catch. The hasp is L shape in this patent, and the edges and corners is comparatively sharp-pointed to take place to collide with easily.

As another example, chinese patent [ application No. 201020167715.3; the double-layer sealed cab side wall door disclosed by the bulletin No. CN201650053U is characterized in that the cab side walls adopt double-layer sealing structures, and a linkage door lock and a lock nose are surrounded by the sealing structures. Although the structure has good sealing performance and does not have the problem of collision, the structure is complex and has low universality. At present, a door lock structure capable of solving the problem that an operator collides with a lock rod mounting bracket in a cab of a crane does not exist in the prior art.

Disclosure of Invention

The utility model aims at the above-mentioned problem that prior art exists, a lock structure of hoist cab has been proposed, the utility model provides a technical problem how better avoid operating personnel to pass in and out the cab when taking place to collide with the support of installation locking lever.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides a door lock structure of hoist cab, the cab includes cab casing and cab door, door lock structure includes lock core and locking lever, the lock core is installed on cab door, the locking lever passes through the support to be fixed in the border department that cab casing is close to cab door, the locking lever can stretch in the lock core and be locked by the lock core, a serial communication port, door lock structure is still including fixing the anticollision cover that covers the support on the cab casing, the anticollision cover is for uncovered and have the protruding edge outstanding to cab door towards one side of cab door.

This door lock structure of hoist cab is through setting up the anticollision cover outside the support of installation locking lever, and the support is covered to the anticollision cover, takes place to collide with the support when avoiding operating personnel to pass in and out the cab, protects operating personnel. And, set up the protruding edge of dysmorphism structure on the anticollision cover, can increase the protective range of anticollision cover and avoid simultaneously taking place to interfere with other spare parts. Compared with the prior art, the door lock structure of the crane cab has good protection effect and universality, and can be suitable for installation and transformation of the door lock structure with the fixed lock rod.

In the door lock structure of the crane cab, the upper end and the lower end of the anti-collision cover are both transition inclined planes, and the transition inclined planes are connected with the convex edges. Such a shape can reduce the sharp areas of the crash cover and cushion the impact forces.

In the door lock structure of the crane cab, the open edge is also provided with an inward flange, and the edges of the anti-collision cover are all in arc transition. The inner flanging and the arc surface can reduce the stress when an operator contacts the anti-collision cover, and the collision is avoided.

In the door lock structure of the crane cab, the three side surfaces of the anti-collision cover are provided with the fixing flanges, and the fixing flanges are fixed with the cab shell through the fasteners. The crash cover is fixedly secured to the cab housing by fasteners, such as screws or rivets.

In the door lock structure of the crane cab, the support is L-shaped, the support is provided with a fixing part and a connecting part, the fixing part is fixedly connected with the cab shell, the connecting part is provided with a through hole, and the lock rod is detachably connected with the through hole of the connecting part. The L-shaped support is convenient for the installation of the lock rod, the sharp edge of the L-shaped support is also protected by the anti-collision cover, and the direct collision of the L-shaped support by an operator is avoided.

In the door lock structure of the crane cab, the tail part of the lock rod is provided with the boss, an external thread is processed on the outer surface of one section of the lock rod close to the boss, the lock rod penetrates through the through hole of the connecting part to enable the boss to abut against one side of the connecting part, and the other side of the connecting part is fixed through the nut which is connected onto the lock rod through threads. During installation, the lock rod is inserted into the through hole to enable the boss to abut against one side of the connecting portion, the nut is sleeved on the lock rod, and the nut is screwed into the other side of the connecting portion through threads until the nut is locked.

In the door lock structure of the crane cab, the through hole is in a runway shape. The position of the lock rod can be adjusted in the runway-type through hole, so that the position of the lock rod can be conveniently adjusted to be matched with the lock core.

As another scheme, in the door lock structure of the crane cab, the through hole is processed with an internal thread, the outer surface of the lock rod is processed with an external thread, and the lock rod is in threaded connection with the through hole of the connecting portion. Such a configuration facilitates installation and replacement of the locking rod.

Compared with the prior art, this lock structure of hoist cab's advantage lies in:

1. this door lock structure of hoist cab sets up the anticollision cover through setting up outside L shape support, and the support is covered to the anticollision cover, takes place to collide with the support when avoiding operating personnel to pass in and out the cab, protects operating personnel better.

2. This anticollision cover of door lock structure of hoist cab adopts the abnormal shape structure, and transition inclined plane and turn-ups design can reduce the sharp-pointed region of anticollision cover and can cushion the impact, have improved anticollision effect.

3. The protective cover of the door lock structure of the crane cab is simple in structure, convenient to install, capable of being suitable for installation and transformation of the door lock structure with the fixed lock rod, and high in universality.

Drawings

Fig. 1 is a partial schematic view of a door lock structure of the cab of the crane.

Fig. 2 is a schematic view of the installation structure of the lock cylinder and the lock rod in the door lock structure of the cab of the crane.

Fig. 3 is a structural schematic diagram of a bracket in the door lock structure of the cab of the crane.

Fig. 4 is a schematic perspective view of an anti-collision cover in the door lock structure of the cab of the crane.

Fig. 5 is a schematic front view of an anti-collision cover in the door lock structure of the crane cab.

In the figure, 1, a cab shell; 2. a cab door; 3. a lock cylinder; 4. a lock lever; 41. a boss; 5. a support; 51. a fixed part; 52. a connecting portion; 521. a through hole; 6. an anti-collision cover; 61. opening the mouth; 62. a convex edge; 63. a transition bevel; 64. fixing the flanging; 65. inward flanging; 7. and a nut.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

The first embodiment is as follows:

the cab comprises a cab shell 1 and a cab door 2, and a lock cylinder 3, a lock rod 4 and an anti-collision cover 6 of the door lock structure of the cab of the crane.

Specifically, as shown in fig. 1, the key cylinder 3 is mounted on the cab door 2, and the lock lever 4 is fixed to the edge of the cab housing 1 near the cab door 2 by a bracket 5. When the cab door 2 is closed, the lock rod 4 can extend into the lock cylinder 3 and is locked by the lock cylinder 3; when the cab door 2 is opened, the lock lever 4 is disengaged from the key cylinder 3.

As shown in fig. 4 and 5, in the present embodiment, a concave cavity is formed inside the crash cover 6, one side of the crash cover 6 is an opening 61, the opening 61 is provided with a convex edge 62 protruding outwards, both the upper end and the lower end are transition inclined surfaces 63, and the transition inclined surfaces 63 are connected with the convex edge 62. As preferred scheme, uncovered 61's border still has inside flanging 65, and the border of anticollision cover 6 all passes through the circular arc transition, and inside flanging 65 and arc surface can reduce the atress when operating personnel contacts anticollision cover 6, avoid colliding with. The three sides of the anti-collision cover 6 are all provided with fixing flanges 64, as shown in fig. 1, the fixing flanges 64 are fixed with the cab shell 1 through fasteners, so that the anti-collision cover 6 covers the bracket 5, the lock rod 4 extends out of the opening 61 of the anti-collision cover 6, and the convex edge 62 of the anti-collision cover 6 also faces the cab door 2. In the actual production and manufacturing process, the fasteners may be screws or rivets.

As shown in fig. 3, the bracket 5 is L-shaped, the bracket 5 has a fixing portion 51 and a connecting portion 52, the fixing portion 51 is fixedly connected with the cab housing 1, a through hole 521 is formed in the connecting portion 52, and the lock lever 4 is detachably connected to the through hole 521 of the connecting portion 52. As shown in fig. 2 and 3, in this embodiment, the tail portion of the lock rod 4 has a boss 41, an external thread is processed on an outer surface of a section of the lock rod 4 close to the boss 41, the lock rod 4 passes through the through hole 521 of the connecting portion 52 to enable the boss 41 to abut against one side of the connecting portion 52, and the other side of the connecting portion 52 is fixed by the nut 7 screwed on the lock rod 4. When the locking rod 4 is installed, the locking rod 4 is inserted into the through hole 521 to enable the boss 41 to abut against one side of the connecting portion 52, then the nut 7 is sleeved on the locking rod 4, and the nut 7 is screwed into the other side of the connecting portion 52 through threads until locking is achieved. Preferably, the through hole 521 is racetrack shaped. The position of the locking lever 4 can be adjusted in the through hole 521 of the raceway type.

This door lock structure of hoist cab is through setting up anticollision cover 6 outside the support 5 of installation locking lever 4, and anticollision cover 6 covers support 5, takes place to collide with L type support 5 when avoiding operating personnel to pass in and out the cab, protects operating personnel. And, set up the protruding edge 62 of dysmorphism structure on the anticollision cover 6, can increase the protective range of anticollision cover 6 and avoid simultaneously taking place to interfere with other spare parts.

Example two:

the technical solution in this embodiment is substantially the same as that in the first embodiment, except that in this embodiment, the through hole 521 is processed with an internal thread, the outer surface of the lock rod 4 is processed with an external thread, and the lock rod 4 is screwed on the through hole 521 of the connecting portion 52, which facilitates the installation and replacement of the lock rod 4.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The utility model provides a lock structure of hoist cab, the cab includes cab casing (1) and driver's cabin door (2), lock structure includes lock core (3) and locking lever (4), install on driver's cabin door (2) lock core (3), the border department that driver's cabin casing (1) is close to driver's cabin door (2) is fixed through support (5) in locking lever (4), locking lever (4) can stretch in lock core (3) and locked by lock core (3), a serial communication port, lock structure is still including fixing anticollision cover (6) that cover support (5) on cab casing (1), one side of anticollision cover (6) towards driver's cabin door (2) is uncovered (61) and has protruding along (62) outstanding to driver's cabin door (2).

2. The door lock structure of the crane cab according to claim 1, wherein the upper end and the lower end of the anti-collision cover (6) are both transition inclined surfaces (63), and the transition inclined surfaces (63) are connected with the convex edges (62).

3. The door lock structure of the crane cab according to claim 1, wherein the edge of the opening (61) is further provided with an inward flange (65), and the edges of the anti-collision cover (6) are all transited through an arc.

4. The door lock structure of the crane cab according to claim 1, wherein the collision preventing cover (6) has fixing flanges (64) on three sides, and the fixing flanges (64) are fixed to the cab housing (1) through fasteners.

5. The door lock structure of the crane cab according to any one of claims 1 to 4, wherein the bracket (5) is L-shaped, the bracket (5) has a fixing portion (51) and a connecting portion (52), the fixing portion (51) is fixedly connected with the cab housing (1), the connecting portion (52) is provided with a through hole (521), and the lock rod (4) is detachably connected to the through hole (521) of the connecting portion (52).

6. The door lock structure of the crane cab according to claim 5, wherein the tail of the lock rod (4) is provided with a boss (41), an external thread is processed on the outer surface of a section of the lock rod (4) close to the boss (41), the lock rod (4) passes through a through hole (521) of the connecting part (52) to enable the boss (41) to abut against one side of the connecting part (52), and the other side of the connecting part (52) is fixed by a nut (7) which is in threaded connection with the lock rod (4).

7. The door lock structure of the crane cab according to claim 6, wherein the through hole (521) is racetrack shaped.

8. The door lock structure of the crane cab according to any one of claims 1 to 4, wherein the through hole (521) is internally threaded, the outer surface of the lock rod (4) is externally threaded, and the lock rod (4) is screwed to the through hole (521) of the connecting portion (52).