Dumb waiter car door locking device

Abstract

The utility model discloses a dumb waiter car door locking device which comprises an L-shaped iron sheet, in the door closing process, when an upper door plate hitting rod of an elevator car door makes contact with an L-shaped notch formed in the side face of a movable piece, the movable piece rotates along a first fixing rod, and when the movable piece rotates, a connecting rod and a connecting block which are fixed to one side of the movable piece are driven to move; when the connecting block moves, due to the fact that the movable rod fixedly connected with one end of the connecting block is limited in the movable hole, when the connecting block moves, the movable rod is driven to be pushed into the movable hole and then deflects, and when the movable piece is pushed to deflect, one end of the movable rod deflects to the downward angle from the upward angle. When the car door upper door plate knock rod moves to be in contact with the contact, the car door is locked, when the service lift car door locking device is used, the car door can be locked when the car door upper door plate knock rod makes contact with the lock catch, and the car door cannot be opened in the operation process after the car door upper door plate knock rod is locked.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator car doors, in particular to a locking device for a cargo elevator car door. Background Art

[0002] The utility elevator is a fixed lifting device serving the floors. It has a car. In terms of its size and structure, people are not allowed to enter the car. The car runs between two rigid guide rails that are vertical or inclined at an angle of less than 15° to the vertical. It is used to transport some light books, documents, food, etc., but people are not allowed to enter the car. It is controlled by a button outside the door. With the continuous increase in labor costs, the use of utility elevators has also been continuously recognized by users. This product is suitable for hotels, guesthouses, canteens, kindergartens and other places.

[0003] During the operation of a service elevator, the car door tends to open slowly and automatically, causing the door lock circuit to be disconnected and the elevator to be stuck in the middle position, which is prone to malfunction. Because service elevators are smaller, they are more difficult to maintain than ordinary elevators.

[0004] Therefore, we propose a cargo elevator car door locking device to solve the above-mentioned problems. Summary of the invention

[0005] The utility model provides a locking device for a car door of a goods elevator, which solves the problem mentioned in the above background technology that the car door is prone to open slowly and automatically during the operation of the goods elevator, resulting in the disconnection of the door lock circuit, the elevator being stuck in the middle position, and prone to malfunction. Since the goods elevator is smaller, it is more difficult to maintain than a general elevator.

[0006] The utility model provides the following technical solutions: a cargo elevator car door locking device, comprising an L-shaped iron sheet, a mounting groove one is provided on the side of the L-shaped iron sheet, a connecting iron sheet is installed on the side of the L-shaped iron sheet, a mounting groove two is provided on the side wall of the connecting iron sheet, a connecting piece is fixedly installed between the mounting groove one and the mounting groove two, a movable hole is provided on the side wall of the connecting iron sheet, a movable component is installed on the side wall of the connecting iron sheet, a fixing plate is fixedly installed on one side wall of the L-shaped iron sheet, a mounting groove three is provided on the fixing plate, a car door lock is fixedly installed on the surface of the L-shaped iron sheet, a mounting groove four is provided on the side wall of the car door lock, and a contact is fixedly installed on the upper end of the car door lock.

[0007] As an optional solution described in the utility model, wherein: the movable component includes a fixed rod 1 fixedly installed on the side wall of the connecting iron sheet, and a movable sheet is rotatably installed on the fixed rod 1.

[0008] As an optional solution described in the utility model, wherein: an L-shaped notch is opened on the side of the movable sheet, and the L-shaped notch extends out of the installation surface of the L-shaped iron sheet.

[0009] As an optional solution described in the utility model, wherein: a connecting rod is fixedly installed on one side of the movable piece, a connecting block is rotatably installed on the connecting rod, and the movable piece is rotatably connected to the inner side of the connecting block.

[0010] As an optional solution described in the utility model, a movable rod is fixedly installed at one end of the connecting block, a second fixed rod is fixedly installed between the inner side walls of the movable hole, a sliding groove is opened on the side wall of the movable rod, and the movable rod is slidably connected to the second fixed rod.

[0011] As an optional solution described in the utility model, wherein: a spring is fixedly installed on the side wall of the connecting block, the other end of the spring is fixedly installed on the surface of the connecting iron sheet, and the spring is sleeved on the outside of the movable rod.

[0012] The utility model has the following beneficial effects:

[0013] 1. During the door closing process, when the door panel hitting rod on the elevator car door contacts the L-shaped notch on the side of the movable piece, the movable piece rotates along the fixed rod. When the movable piece rotates, it drives the connecting rod and the connecting block fixed on one side to move. When the connecting block moves, the movable rod is fixedly connected at one end and is limited in the movable hole. When the connecting block moves, it drives the movable rod to be pushed into the movable hole and then deflected. When the movable piece is pushed to the point of deflection, one end of the movable rod deflects from an upward angle to a downward angle. When the door panel hitting rod on the car door moves to contact the contact point, the car door is locked. When the sundries elevator car door locking device is in use, the car door will be locked when the door panel hitting rod on the car door contacts the lock buckle. After locking, the car door will not be opened during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0015] Figure 2 It is a schematic diagram of the cross-sectional structure of the active component system of the utility model.

[0016] Figure 3 For the utility model Figure 1 Enlarged structural diagram at A in the middle.

[0017] Figure 4 For the utility model Figure 2 Enlarged structural diagram at B in the middle.

[0018] In the figure: 1. L-shaped iron sheet; 11. Mounting slot 1; 2. Connecting iron sheet; 21. Mounting slot 2; 22. Connecting piece; 23. Movable hole; 24. Fixed rod 2; 3. Fixed plate; 31. Mounting slot 3; 4. Car door lock; 41. Mounting slot 4; 42. Contact; 5. Movable component; 51. Movable sheet; 52. Fixed rod 1; 53. Connecting rod; 54. Connecting block; 55. Spring; 56. Movable rod; 57. L-shaped notch; 58. Slide groove. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0020] See also Figure 1 - Figure 4 A cargo elevator car door locking device comprises an L-shaped iron sheet 1, a mounting groove 11 is provided on the side of the L-shaped iron sheet 1, a connecting iron sheet 2 is installed on the side of the L-shaped iron sheet 1, a mounting groove 21 is provided on the side wall of the connecting iron sheet 2, a connecting piece 22 is fixedly installed between the mounting groove 11 and the mounting groove 21, a movable hole 23 is provided on the side wall of the connecting iron sheet 2, a movable component 5 is installed on the side wall of the connecting iron sheet 2, a fixing plate 3 is fixedly installed on one side wall of the L-shaped iron sheet 1, a mounting groove 31 is provided on the fixing plate 3, a car door lock 4 is fixedly installed on the surface of the L-shaped iron sheet 1, a mounting groove 41 is provided on the side wall of the car door lock 4, and a contact 42 is fixedly installed on the upper end of the car door lock 4.

[0021] The movable assembly 5 comprises a fixed rod 52 fixedly mounted on the side wall of the connecting iron sheet 2, and a movable sheet 51 is rotatably mounted on the fixed rod 52.

[0022] An L-shaped notch 57 is formed on the side of the movable sheet 51 , and the L-shaped notch 57 extends out of the mounting surface of the L-shaped iron sheet 1 .

[0023] A connecting rod 53 is fixedly mounted on one side of the movable piece 51 , a connecting block 54 is rotatably mounted on the connecting rod 53 , and the movable piece 51 is rotatably connected to the inner side of the connecting block 54 .

[0024] A movable rod 56 is fixedly installed at one end of the connecting block 54 , a second fixed rod 24 is fixedly installed between the inner side walls of the movable hole 23 , a sliding groove 58 is provided on the side wall of the movable rod 56 , and the movable rod 56 is slidably connected to the second fixed rod 24 .

[0025] A spring 55 is fixedly mounted on the side wall of the connecting block 54 , and the other end of the spring 55 is fixedly mounted on the surface of the connecting iron sheet 2 . The spring 55 is sleeved on the outer side of the movable rod 56 .

[0026] When installing the device, first, the movable component 5 and the connecting iron sheet 2 are fixedly installed on the side wall of the L-shaped iron sheet 1 through the connecting piece 22, and the car door lock 4 is installed on the other side of the L-shaped iron sheet 1 through the mounting groove 41. After the above components are installed on the L-shaped iron sheet 1, the device can be installed inside the elevator through the mounting groove 31 on the fixing plate 3. During the door closing process, when the door panel hitting rod on the elevator car door contacts the L-shaped notch 57 on the side of the movable sheet 51, the movable sheet 51 rotates along the fixing rod 1 52, and when the movable sheet 51 rotates, it drives the connecting rod fixed on one side thereof. The connecting rod 53 and the connecting block 54 move. When the connecting block 54 moves, the movable rod 56 fixedly connected at one end thereof is limited in the movable hole 23. When the connecting block 54 moves, the movable rod 56 is pushed into the movable hole 23 and then deflected. When the movable sheet 51 is pushed to deflect, one end of the movable rod 56 deflects from an upward angle to a downward angle. When the door panel hitting rod on the car door moves to contact with the contact 42, the car door is locked. When the car door locking device for the miscellaneous elevator is in use, the car door will be locked when the door panel hitting rod on the car door contacts the lock buckle. After locking, the car door will not be opened during operation.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0028] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A cargo elevator door locking device, comprising an L-shaped iron sheet (1), characterized in that: The side of the L-shaped iron sheet (1) is provided with a first installation groove (11), the side of the L-shaped iron sheet (1) is provided with a connecting iron sheet (2), the side wall of the connecting iron sheet (2) is provided with a second installation groove (21), a connecting piece (22) is fixedly installed between the first installation groove (11) and the second installation groove (21), the side wall of the connecting iron sheet (2) is provided with a movable hole (23), the side wall of the connecting iron sheet (2) is provided with a movable component (5), a fixing plate (3) is fixedly installed on one side wall of the L-shaped iron sheet (1), the fixing plate (3) is provided with a third installation groove (31), a car door lock (4) is fixedly installed on the surface of the L-shaped iron sheet (1), the side wall of the car door lock (4) is provided with a fourth installation groove (41), and a contact (42) is fixedly installed on the upper end of the car door lock (4).

2. A cargo elevator door locking device according to claim 1, characterized in that: The movable assembly (5) comprises a fixed rod (52) fixedly mounted on the side wall of the connecting iron sheet (2), and a movable sheet (51) is rotatably mounted on the fixed rod (52).

3. A cargo elevator door locking device according to claim 2, characterized in that: An L-shaped notch (57) is provided on the side of the movable sheet (51), and the L-shaped notch (57) extends out from the mounting surface of the L-shaped iron sheet (1).

4. A cargo elevator door locking device according to claim 3, characterized in that: A connecting rod (53) is fixedly mounted on one side of the movable sheet (51), a connecting block (54) is rotatably mounted on the connecting rod (53), and the movable sheet (51) is rotatably connected to the inner side of the connecting block (54).

5. A cargo elevator door locking device according to claim 4, characterized in that: A movable rod (56) is fixedly mounted on one end of the connecting block (54), a second fixed rod (24) is fixedly mounted between the inner side walls of the movable hole (23), a sliding groove (58) is provided on the side wall of the movable rod (56), and the movable rod (56) is slidably connected to the second fixed rod (24).

6. A cargo elevator door locking device according to claim 5, characterized in that: A spring (55) is fixedly mounted on the side wall of the connecting block (54), the other end of the spring (55) is fixedly mounted on the surface of the connecting iron sheet (2), and the spring (55) is sleeved on the outside of the movable rod (56).

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