Improved structure of side door lock hook of cab of electric passenger car

Abstract

The utility model discloses an improved structure of a side door lock hook of a cab of an electric passenger car, which belongs to the field of door lock hook mechanisms and comprises a swing arm, a lock hook welding part is fixedly mounted on one side of the top of the swing arm through a screw, and a connecting lug is fixedly welded at the bottom of the lock hook welding part. A guide rod is arranged at the bottom of the connecting lug piece, a first strip-shaped lock hook welding piece is fixedly installed on one side of the U-shaped clamping piece through a screw, and the lock hook welding piece, the guide rod, a first clamping block and a second clamping block are connected to a swing arm, so that the top of a steel wire rope is not directly connected with the swing arm, and the steel wire rope is clamped between the first clamping block and the second clamping block at an opening of the L-shaped base plate; the distance between the top of the steel wire rope and the side wall of the L-shaped seat plate in the swing area of the swing arm is increased, interference friction between the top of the steel wire rope and the side wall of the L-shaped seat plate is avoided, the risk of strand breakage at the connecting position of the steel wire rope can be effectively reduced, and long-time reliability of the latch hook mechanism is improved.

Description

Technical Field

[0001] The utility model relates to the field of door lock hook mechanisms, and more specifically to an improved structure of a door lock hook on the side of a driver's cab of an electric passenger car. Background Art

[0002] A locking hook mechanism is usually installed on the top of the side door body of the driver's cab of an electric passenger car through an L-shaped seat plate. A very important component for controlling the swing of the swing arm in the locking hook mechanism is the wire rope. Therefore, in order to improve the swing stability and reliability of the swing arm in the locking hook mechanism, the connection of the wire rope is particularly important.

[0003] Although the existing wire rope connection structure is relatively simple, it is usually directly connected to the swing arm, which easily causes interference friction with the side wall of the L-shaped seat plate in the swing area of ​​the swing arm. Over time, the risk of wire rope breakage at the connection increases, which is not conducive to the long-term and reliable operation of the locking hook mechanism. Therefore, we propose an improved structure of the side door lock hook of the electric passenger car driver's cab to solve the above-mentioned problems. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the problems existing in the prior art, the purpose of the utility model is to provide an improved structure of the lock hook of the driver's cab side door of an electric passenger car, which connects the lock hook welding part, guide rod, clamping block one and clamping block two at the swing arm, so that the top of the wire rope is not directly connected to the swing arm, but is clamped between clamping block one and clamping block two at the opening of the L-shaped seat plate, thereby increasing the distance between the top of the wire rope and the side wall of the L-shaped seat plate in the swing area of ​​the swing arm, avoiding interference and friction between the top of the wire rope and the side wall of the L-shaped seat plate, thereby effectively reducing the risk of wire rope breakage at the connection point and improving the long-term reliability of the lock hook mechanism.

[0006] 2. Technical solution

[0007] To solve the above problems, the utility model adopts the following technical solutions.

[0008] An improved structure of a lock hook for a side door of a driver's cab of an electric passenger car comprises a swing arm, a hanging opening and a rivet through hole are provided on one side of the bottom of the swing arm, and a hanging hole is also provided on the other side of the bottom of the swing arm, a lock hook welding piece is fixedly installed on one side of the top of the swing arm by screws, and a connecting ear piece is fixedly welded on the bottom of the lock hook welding piece, a guide rod is provided at the bottom of the connecting ear piece, a clamping block is fixedly welded on the bottom of the guide rod, a U-shaped clamp is sleeved on the guide rod located at the top of the clamping block, and a strip lock hook welding piece is fixedly installed on one side of the U-shaped clamp by screws;

[0009] An L-shaped seat plate is provided on one side of the swing arm, and a plurality of openings are equidistantly provided inside the L-shaped seat plate, and a driver's cab side door body is fixedly installed on the bottom of the L-shaped seat plate by screws, and a strip lock hook welding piece 2 is fixedly installed on one of the openings by screws, and the strip lock hook welding piece 1 and the strip lock hook welding piece 2 are fixedly installed by screws, and a clamping column is fixedly welded on the other side of the top of the L-shaped seat plate, and the clamping column is connected to the hanging hole by a tension spring, and a rivet through hole 2 is provided inside the L-shaped seat plate at the position corresponding to the rivet through hole 1, and the rivet through hole 1 and the rivet through hole 2 are rotatably connected by rivets.

[0010] Furthermore, a plug-in port is provided on the top of the guide rod, pin holes are provided inside the connecting ear and on both sides of the top of the plug-in port, the plug-in port is plugged into the bottom of the connecting ear, and the three pin holes are rotatably connected by a pin and a spring pressure plate.

[0011] Furthermore, a clamping block 2 is fixedly installed on one side of the clamping block 1 by screws, and a steel wire rope is fixedly clamped between the clamping block 1 and the clamping block 2. A through channel is opened at the bottom of the L-shaped seat plate corresponding to the position of the clamping block 2 and the inside of the driver's cab side door body, and the bottom of the steel wire rope extends to the inside of the through channel.

[0012] Furthermore, a plurality of limiting pulleys and load-bearing pulleys are fixedly installed on the pulley seat at the top of the L-shaped seat plate.

[0013] Furthermore, the length of the guide rod is greater than the height of the swing arm, and a movable gap is provided between the connecting ear and the side wall of the L-shaped seat plate.

[0014] 3. Beneficial effects

[0015] Compared with the prior art, the advantages of the present invention are:

[0016] In this solution, by connecting the locking hook weldment, guide rod, clamping block one and clamping block two at the swing arm, the top of the wire rope is not directly connected to the swing arm, but is clamped between clamping block one and clamping block two at the opening of the L-shaped seat plate. This increases the distance between the top of the wire rope and the side wall of the L-shaped seat plate in the swing area of ​​the swing arm, avoiding interference and friction between the top of the wire rope and the side wall of the L-shaped seat plate, thereby effectively reducing the risk of wire rope breakage at the connection point and improving the long-term reliability of the locking hook mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 For the utility model Figure 1 The enlarged structural diagram at A in the middle;

[0019] Figure 3 This is a schematic diagram of the guide rod connection structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the split structure of the guide rod connection of the utility model;

[0021] Figure 5 For the utility model Figure 4 Enlarged structural diagram at B in the middle.

[0022] Description of the numbers in the figure:

[0023] 1. Swing arm; 101. Hanging opening; 102. Rivet through hole 1; 103. Hanging hole; 2. Lock hook welding piece; 3. Connecting ear piece; 301. Pin hole; 4. Guide rod; 401. Insertion opening; 5. Clamping block 1; 6. U-shaped clamp; 7. Strip lock hook welding piece 1; 8. L-shaped seat plate; 801. Opening; 802. Rivet through hole 2; 9. Driver's cab side door body; 901. Through passage; 10. Strip lock hook welding piece 2; 11. Clamping column; 12. Tension spring; 13. Latch; 14. Spring pressure plate; 15. Clamping block 2; 16. Wire rope; 17. Limit pulley; 18. Load-bearing pulley. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention specification; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field without creative work based on the embodiments of the present invention are within the scope of protection of the present invention.

[0025] Embodiment 1:

[0026] See also Figure 1-Figure 5 , an improved structure of a lock hook for a side door of a driver's cab of an electric passenger car, comprising a swing arm 1, a hanging opening 101 and a rivet through hole 102 are provided on one side of the bottom of the swing arm 1, and a hanging hole 103 is also provided on the other side of the bottom of the swing arm 1, a lock hook welding piece 2 is fixedly installed on one side of the top of the swing arm 1 by screws, and a connecting ear piece 3 is fixedly welded on the bottom of the lock hook welding piece 2, a guide rod 4 is provided at the bottom of the connecting ear piece 3, a clamping block 5 is fixedly welded on the bottom of the guide rod 4, a U-shaped clamping piece 6 is sleeved on the guide rod 4 located at the top of the clamping block 5, and a strip lock hook welding piece 7 is fixedly installed on one side of the U-shaped clamping piece 6 by screws;

[0027] An L-shaped seat plate 8 is provided on one side of the swing arm 1, and a plurality of openings 801 are equidistantly provided inside the L-shaped seat plate 8, and a driver's cab side door body 9 is fixedly installed on the bottom of the L-shaped seat plate 8 by screws, a strip lock hook welding piece 2 10 is fixedly installed on one of the openings 801 by screws, and the strip lock hook welding piece 1 7 and the strip lock hook welding piece 2 10 are fixedly installed by screws, a clamping column 11 is fixedly welded on the other side of the top of the L-shaped seat plate 8, and the clamping column 11 is connected to the hanging hole 103 by a tension spring 12, and a rivet through hole 2 802 is provided inside the L-shaped seat plate 8 at the position corresponding to the rivet through hole 1 102, and the rivet through hole 1 102 and the rivet through hole 2 802 are rotatably connected by rivets;

[0028] A clamping block 2 15 is fixedly installed on one side of the clamping block 1 5 by screws, and a wire rope 16 is fixedly clamped between the clamping block 1 5 and the clamping block 2 15. A through channel 901 is provided at the bottom of the L-shaped seat plate 8 corresponding to the position of the clamping block 2 15 and inside the driver's cab side door body 9, and the bottom of the wire rope 16 extends to the inside of the through channel 901.

[0029] The working principle of the improved structure of the side door lock hook of the electric passenger car driver's cab is as follows:

[0030] First, since one side of the swing arm 1 is connected to the clamping column 11 through the tension spring 12, the tension spring 12 is always in a pulling state on the bottom side of the swing arm 1, forcing the swing arm 1 to be in a horizontal state. Then, when the L-shaped seat plate 8 and the driver's cab side door body 9 move together to perform the door closing action, the swing arm 1 is driven to move forward. Then, through the setting of the bevel shape on the bottom side of the hanging opening 101, the hanging opening 101 can be smoothly moved forward and hooked on the hook column at the edge of the door frame, thereby achieving the locking hook effect of the L-shaped seat plate 8 and the driver's cab side door body 9 through the swing arm 1.

[0031] When unlocking is required, the corresponding unlocking handle on the driver's cab side door body 9 is pulled (this is an existing known public technology, so it will not be described in detail) to pull the wire rope 16, and then the guide rod 4 can be pulled to force the guide rod 4 to move downward. At this time, under the support of the rivet at the rivet through hole 802, one end of the hanging mouth 101 of the swing arm 1 can be forced to be lifted, thereby achieving the effect of unlocking the hanging mouth 101 and the hook column on the edge of the door frame.

[0032] Embodiment 2:

[0033] In view of the above embodiment 1, for further description, refer to Figure 2 , Figure 4 as well as Figure 5A plug-in port 401 is provided on the top of the guide rod 4, and pin holes 301 are provided inside the connecting ear piece 3 and on both sides of the top of the plug-in port 401. The plug-in port 401 is clamped at the bottom of the connecting ear piece 3, and the three pin holes 301 are rotatably connected through the latch 13 and the spring pressure piece 14; the pulley seat on the top of the L-shaped seat plate 8 is also fixedly installed with a plurality of limiting pulleys 17 and load-bearing pulleys 18; the length of the guide rod 4 is greater than the height of the swing arm 1, and a movable gap is set between the connecting ear piece 3 and the side wall of the L-shaped seat plate 8.

[0034] The opening of the card slot 401 allows the top of the guide rod 4 to be directly stuck on the bottom of the connecting ear 3, and a movable gap is set between the connecting ear 3 and the side wall of the L-shaped seat plate 8 to prevent friction interference between the top of the guide rod 4 and the side wall of the L-shaped seat plate 8 during installation.

[0035] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. An improved structure of a lock hook for a side door of a driver's cab of an electric passenger car, comprising a swing arm (1), characterized in that: A hanging opening (101) and a rivet through hole (102) are provided on one side of the bottom of the swing arm (1), and a hanging hole (103) is also provided on the other side of the bottom of the swing arm (1); a locking hook welding piece (2) is fixedly installed on one side of the top of the swing arm (1) by means of screws, and a connecting ear piece (3) is fixedly welded to the bottom of the locking hook welding piece (2); a guide rod (4) is provided at the bottom of the connecting ear piece (3); a clamping block (5) is fixedly welded to the bottom of the guide rod (4); a U-shaped clamping piece (6) is sleeved on the guide rod (4) located at the top of the clamping block (5), and a strip-shaped locking hook welding piece (7) is fixedly installed on one side of the U-shaped clamping piece (6) by means of screws; An L-shaped seat plate (8) is provided on one side of the swing arm (1), and a plurality of openings (801) are equidistantly provided inside the L-shaped seat plate (8), and a driver's cab side door body (9) is fixedly installed on the bottom of the L-shaped seat plate (8) by screws, and a strip lock hook welding piece 2 (10) is fixedly installed on one of the openings (801) by screws, and the strip lock hook welding piece 1 (7) and the strip lock hook welding piece 2 (10) are fixedly installed by screws, and a clamping column (11) is fixedly welded on the other side of the top of the L-shaped seat plate (8), and the clamping column (11) is connected to the hanging hole (103) by a tension spring (12), and a rivet through hole 2 (802) is provided inside the L-shaped seat plate (8) at the position corresponding to the rivet through hole 1 (102), and the rivet through hole 1 (102) and the rivet through hole 2 (802) are rotatably connected by rivets.

2. The improved structure of the lock hook of the side door of the electric passenger car driver's cab according to claim 1 is characterized in that: The top of the guide rod (4) is provided with a plug-in slot (401), the interior of the connecting ear piece (3) and both sides of the top of the plug-in slot (401) are provided with pin holes (301), the plug-in slot (401) is plugged into the bottom of the connecting ear piece (3), and the three pin holes (301) are rotatably connected to each other via a latch pin (13) and a spring pressure sheet (14).

3. The improved structure of the lock hook for the side door of the electric passenger car cab according to claim 1 is characterized in that: A clamping block 2 (15) is fixedly mounted on one side of the clamping block 1 (5) by means of screws, and a steel wire rope (16) is fixedly clamped between the clamping block 1 (5) and the clamping block 2 (15). A through passage (901) is provided at the bottom of the L-shaped seat plate (8) and inside the driver's cab side door body (9) at the position corresponding to the clamping block 2 (15), and the bottom of the steel wire rope (16) extends to the inside of the through passage (901).

4. The improved structure of the lock hook for the side door of the electric passenger car cab according to claim 1 is characterized in that: The pulley seat at the top of the L-shaped seat plate (8) is also fixedly mounted with a plurality of limiting pulleys (17) and load-bearing pulleys (18).

5. The improved structure of the lock hook of the side door of the electric passenger car cab according to claim 1 is characterized in that: The length of the guide rod (4) is greater than the height of the swing arm (1), and a movable gap is provided between the connecting ear piece (3) and the side wall of the L-shaped seat plate (8).

Images