CN222794321U

CN222794321U - A front box lock for loading on a pull arm

Info

Publication number: CN222794321U
Application number: CN202421721187.XU
Authority: CN
Inventors: 陈华
Original assignee: Shanghai Vehicle Loading Equipment Co ltd
Current assignee: Shanghai Vehicle Loading Equipment Co ltd
Priority date: 2024-07-19
Filing date: 2024-07-19
Publication date: 2025-04-25
Anticipated expiration: 2034-07-19

Abstract

The present application relates to a front box lock for installation on a drawbar, and relates to the technical field of drawbar hooks, which includes a drawbar beam, two of which are arranged at intervals, a lock hook frame is arranged on the drawbar beam, a connecting assembly is arranged on the lock hook frame, and the connecting assembly is used to slide and install the lock hook frame on the drawbar beam; a lock hook body is rotatably installed on the lock hook frame, and an adjustment assembly is arranged on the lock hook frame, and the adjustment assembly is used to control the locking and unlocking states of the lock hook body. The present application can improve the safety and stability during transportation and reduce safety hazards when transporting boxes with a high height, a high center of gravity, or an irregular shape.

Description

Leading box lock is used in arm-drag facial make-up

Technical Field

The application relates to the technical field of a pull arm hook, in particular to a front box lock for pull arm upper mounting.

Background

The pull arm type self-loading and unloading device can be installed on a special truck chassis, and can realize the functions of pulling, unloading, lifting and the like of a box body by combining the sliding or swinging of the hook arm through the rotation of the hook arm, so that the pull arm type self-loading and unloading device is widely applied to sanitation transfer vehicles and the like and has the advantages of being capable of conveniently replacing the box body of a garbage truck, being convenient for dumping garbage and the like.

After the carriage-detachable garbage truck fixes the bin to the arm-tie hook apparatus, it is necessary to be able to firmly lock the bin and maintain the stability of the bin during running of the vehicle.

The prior art patent with the publication number of CN208249067U discloses a pulling arm hook device which comprises a pulling arm hook part, a locking piece, a control system and an operation box, wherein the pulling arm hook part comprises a main arm, a sliding arm, a pulling arm and a hook, the sliding arm, the pulling arm and the hook are in an L-shaped whole, the main arm is hollow and is provided with a sliding groove for the sliding arm to slide in, the locking piece comprises a box lock and a self-unloading lock which are connected into a whole, the locking piece is arranged on a rear frame, the box lock and the main arm are locked through rotation, the locking piece is driven by the sliding arm, the control system comprises a position sensor, a control circuit and an operation box, the position sensor comprises a box lock sensor, a self-unloading lock sensor and a sliding arm position sensor, the sliding arm position sensor is arranged on limiting devices at two ends of a hollow structure of the main arm, the position sensor sends position information to the control circuit, an analysis module is arranged in the control circuit, the state of the pulling arm hook device is analyzed intelligently, and warning information is given through an indication lamp on the operation box.

When the arm-pulling hook device is used, the box body is pulled up under the action of the arm-pulling and the hook, the locking piece is positioned at the tail part of the arm-pulling hook device, and after the box body is placed on the arm-pulling hook device, the box body is locked by the locking piece.

With respect to the above related art, the inventor considers that when transporting a box with a high height or a high center of gravity and an irregular box, only a group of box locks at the tail is difficult to ensure the safety and stability of the box in the process of transporting or storing, and has a great potential safety hazard.

Disclosure of utility model

The utility model aims to solve the technical problem that when a box body with higher transport height or higher gravity center and irregularity is transported, the safety and stability of the box body in the transport or storage process are difficult to ensure by only one group of box body locks at the tail part, and the technical problem of great potential safety hazard exists.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

The front box lock for the pull arm upper assembly comprises pull arm girders, two pull arm girders are arranged at intervals, lock hook frames are arranged on the pull arm girders, connecting components are arranged on the lock hook frames and used for slidably mounting the lock hook frames on the pull arm girders, lock hook bodies are rotatably mounted on the lock hook frames, and adjusting components are arranged on the lock hook frames and used for controlling locking and unlocking states of the lock hook bodies.

Through above-mentioned technical scheme, the latch hook frame is installed on the arm-tie girder, and when the position of latch hook frame need be adjusted, coupling assembling adjusts the position of latch hook frame, and when the box was put on arm-tie hook equipment, adjusting part adjusted the latch hook body into locking state, and when the box was taken off to needs, adjusting part adjusted the latch hook body into unlocking state. Through increasing a set of latch hook frame that is located the front side and original box lock cooperation for when the transportation height is higher or the focus is higher and the box of irregularity, security and stability in the transportation can be promoted, the potential safety hazard is reduced.

Further, the adjusting assembly comprises an adjusting oil cylinder and an adjusting pin shaft, the adjusting pin shaft is arranged on the lock hook body, one end of the adjusting oil cylinder is rotatably arranged on the lock hook frame, and the other end of the adjusting oil cylinder is rotatably connected with the adjusting pin shaft.

Through the technical scheme, the adjusting oil cylinder drives the pin hook body to move on the lock hook frame through the adjusting pin shaft, so that the degree of automation of locking and unlocking of the lock hook body is improved.

Further, a guide groove is formed in the lock hook frame, one end of the adjusting pin shaft penetrates out of the guide groove, and one end of the adjusting pin shaft penetrating out of the guide groove is connected with the adjusting oil cylinder.

Through the technical scheme, the adjusting pin shaft moves along the guide groove on the lock hook frame, so that the stability of the movement of the lock hook body on the lock hook frame is improved.

Further, a turnover groove is formed in the lock hook frame, a turnover pin shaft is installed on the lock hook body, and one end of the turnover pin shaft penetrates out of the turnover groove.

Through the technical scheme, the lock hook body is turned over along the turning groove on the lock hook frame through the turning pin shaft in the moving process, so that the moving space of the lock hook body is reduced.

Further, the connecting assembly comprises a sliding frame, a sliding cavity is formed in the sliding frame, the pull arm girder penetrates through the sliding cavity, and the latch hook frame is mounted on the sliding frame.

Through the technical scheme, the pull arm girder passes through the sliding cavity of the sliding frame, so that the convenience of sliding of the sliding frame on the pull arm girder is improved.

Further, a supporting frame is arranged between the sliding frame and the pull arm girder, one end of the supporting frame is installed on the sliding frame, and the other end of the supporting frame is supported on the pull arm girder.

Through above-mentioned technical scheme, the support frame supports between slide frame and arm-pulling girder for the stability after the latch hook body locking box can promote.

Further, the mounting holes are formed in the pull arm girder, a plurality of mounting holes are formed in the pull arm girder at intervals, a connecting plate is arranged on the sliding frame, a connecting bolt is arranged on the connecting plate, and one end of the connecting bolt sequentially penetrates through the connecting plate and the pull arm girder and is connected with the supporting frame.

Through above-mentioned technical scheme, slide the frame of will sliding along the length direction of arm-tie girder, after the frame slides the assigned position of sliding, connecting bolt's one end passes the mounting hole that corresponds on connecting plate and the arm-tie girder, and connecting bolt passes the one end and the support frame of arm-tie girder to be connected for the convenience of sliding on the arm-tie girder of frame of sliding can promote.

In summary, the application comprises at least one of the following beneficial technical effects that the front box lock for the pull arm upper assembly is:

1. The latch hook frame is installed on the arm-tie girder, and when the position of latch hook frame needs the adjustment, coupling assembling adjusts the position of latch hook frame, and when the box was put on arm-tie hook equipment, adjusting part adjusted the latch hook body to locking state, and when the box was taken off to needs, adjusting part adjusted the latch hook body to unlocking state. The front latch hook frames are matched with the original box body, so that the safety and stability in the transportation process can be improved and the potential safety hazard is reduced when the box body with higher transportation height or higher gravity center and irregularity is transported;

2. the guide groove on the lock hook frame is matched with the overturning groove, so that the lock hook body can overturn in the moving process of the lock hook frame, and the using space of the lock hook body is reduced;

3. The locking hook frame is arranged on the sliding frame, and the supporting frame is supported on the sliding frame and the pull arm girder, so that the stability of the locking hook body fixing box body is improved.

Drawings

Fig. 1 is a schematic diagram of the overall structure of a front box lock for mounting a pull arm according to the present embodiment;

FIG. 2 is a schematic view of a sliding frame structure mainly provided in the present embodiment;

FIG. 3 is an exploded view of a sliding frame structure provided primarily in this embodiment;

Fig. 4 is a schematic diagram of a latch hook body structure mainly provided in this embodiment.

Reference numerals:

1. The device comprises a pull arm girder, 11 parts of mounting holes, 2 parts of lock hook frames, 21 parts of connecting shafts, 22 parts of guiding grooves, 23 parts of overturning grooves, 231 parts of horizontal parts, 232 parts of overturning parts, 24 parts of supporting frames, 241 parts of supporting plates, 25 parts of connecting plates, 251 parts of connecting bolts, 252 parts of connecting nuts, 3 parts of connecting components, 31 parts of sliding frames, 32 parts of sliding cavities, 4 parts of lock hook bodies, 41 parts of hook grooves, 42 parts of adjusting pin shafts, 43 parts of overturning pin shafts, 5 parts of adjusting components and 51 parts of adjusting oil cylinders.

Detailed Description

The utility model will be further described with reference to the following embodiments in order to make the technical means, the creation features, the achievement of the objects and the effects of the utility model easy to understand.

The application is described in further detail below with reference to fig. 1-4.

The embodiment of the application discloses a front box lock for mounting a pull arm.

Referring to fig. 1, a front box lock for mounting a pull arm comprises a pull arm girder 1, wherein a lock hook frame 2 is arranged on the pull arm girder 1, a connecting component 3 is arranged on the lock hook frame 2, and the lock hook frame 2 is slidably mounted on the pull arm girder 1 through the connecting component 3. The lock hook frame 2 is provided with a lock hook body 4 and an adjusting component 5, and the adjusting component 5 adjusts the locking or unlocking state of the lock hook body 4.

The two pull arm girders 1 are arranged at intervals, the lock hook frames 2 correspond to the pull arm girders 1, and the lock hook frames 2 are installed on the two pull arm girders 1 in a central symmetry mode. The structure and the function of the two latch hook frames 2 on the pull arm girder 1 are the same, and only one latch hook frame 2 is described below.

Referring to fig. 4, the latch hook frames 2 are integrally flat, and two latch hook frames 2 are arranged at intervals in parallel. The latch hook body 4 is located between the two latch hook frames 2, and a latch hook groove 41 is formed on the latch hook body 4, and in use, the latch hook groove 41 of the latch hook body 4 is hooked on the case.

Referring to fig. 2-3, the adjusting assembly 5 includes an adjusting cylinder 51, the adjusting cylinder 51 is located at one side of the latch hook frames 2, a connecting shaft 21 is disposed on the two latch hook frames 2, one end of the connecting shaft 21 sequentially passes through the two latch hook frames 2, and one end of the adjusting cylinder 51 is rotatably mounted on the connecting shaft 21. When in use, the adjusting oil cylinder 51 is in threaded connection with the two ends of the connecting shaft 21 through the nuts, so that the stability of the adjusting oil cylinder on the lock hook frame 2 is improved.

Referring to fig. 3, the latch hook frames 2 at both sides of the latch hook body 4 are provided with guide grooves 22, and the guide grooves 22 are horizontally arranged as a whole. The lock hook body 4 is provided with an adjusting pin shaft 42, the adjusting pin shaft 42 is rotatably arranged on the lock hook body 4, and two ends of the adjusting pin shaft 42 penetrate out of the guide grooves 22 on the lock hook frames 2 at two sides. One end of the adjusting pin shaft 42 penetrating from the guide groove 22 is rotatably connected with one end of the adjusting oil cylinder 51, and the lock hook body 4 slides along the guide groove 22 through the adjusting pin shaft 42 by means of the extension and retraction of a piston rod of the adjusting oil cylinder 51. Further, when the piston rod of the adjusting oil cylinder 51 extends, the lock hook body 4 is in a locking state, and when the piston rod of the adjusting oil cylinder 51 contracts, the lock hook body 4 is in an unlocking state.

The two latch hook frames 2 are provided with a turnover groove 23, the turnover groove 23 comprises a horizontal part 231 and a turnover part 232, and an included angle between the horizontal part 231 and the turnover part 232 is 125 degrees. The latch hook body 4 is provided with a turnover pin shaft 43, the turnover pin shaft 43 is arranged on the latch hook body 4, and two ends of the turnover pin shaft 43 penetrate through the turnover groove 23. When the latch hook body 4 is in the locked state, the overturning pin shaft 43 on the latch hook body 4 is located at the horizontal part 231 of the overturning groove 23, and the latch hook body 4 unlocks the box along with the retraction of the adjusting oil cylinder 51. In the unlocking process, the overturning pin shaft 43 on the lock hook body 4 overturns along the overturning part 232 of the overturning groove 23, and the lock hook body 4 rotates around the adjusting pin shaft 42 along with the guidance of the overturning part 232 on the lock hook body 4, so that the lock hook body 4 is accommodated between the two lock hook frames 2.

The connecting assembly 3 comprises a sliding frame 31, a sliding cavity 32 is formed on the inner side of the sliding frame 31, one end of the pull arm girder 1 passes through the sliding cavity 32 of the sliding frame 31, and in addition, the two latch hook bodies 4 are welded on the sliding frame 31. Further, the latch hook body 4 mounted on the latch hook frame 2 can slide on the arm-tie girder 1.

Further, in order to promote the stability behind locking box of latch hook body 4, be provided with support frame 24 between latch hook frame 2 and the arm-tie girder 1, the one end of support frame 24 is installed on slide frame 31, and the other end is provided with backup pad 241, and one side and the support frame 24 welding of backup pad 241 thickness direction, the opposite side supports tightly on arm-tie girder 1. When in use, the support plate 241 and the support frame 24 support the latch hook frame 2, so that the reaction force generated when the latch hook body 4 locks the box body can act on the pull arm girder 1.

One side of the pull arm girder 1, which is away from the support plate 241 in the thickness direction, is provided with a connection plate 25, and the connection plate 25 is connected to the latch hook frame 2. The pull arm girder 1 is provided with mounting holes 11, and the mounting holes 11 are uniformly spaced along the length direction of the pull arm girder 1 and are provided with a plurality of mounting holes. The connecting plate 25 is provided with a connecting bolt 251, one end of the connecting bolt 251 sequentially penetrates through the connecting plate 25, the pull arm girder 1 and the supporting plate 241, one end of the connecting bolt 251 penetrating through the supporting plate 241 is provided with a connecting nut 252, the connecting nut 252 is in threaded connection with the connecting bolt 251, and one side of the connecting nut 252 abuts against the supporting plate 241.

The above embodiments are not intended to limit the scope of the application, so that the equivalent changes of the structure, shape and principle of the application are covered by the scope of the application.

Claims

1. A front box lock for installation on a pulling arm, comprising a pulling arm beam (1), wherein two pulling arm beams (1) are arranged at intervals, and characterized in that: a locking hook frame (2) is arranged on the pulling arm beam (1), and a connecting component (3) is arranged on the locking hook frame (2), and the connecting component (3) is used to slide and install the locking hook frame (2) on the pulling arm beam (1);

A lock hook body (4) is rotatably mounted on the lock hook frame (2), and an adjustment component (5) is provided on the lock hook frame (2). The adjustment component (5) is used to control the locking and unlocking states of the lock hook body (4).

2. A front box lock for installation on a pulling arm according to claim 1, characterized in that: the adjusting component (5) includes an adjusting cylinder (51) and an adjusting pin (42), the adjusting pin (42) is installed on the lock hook body (4), one end of the adjusting cylinder (51) is rotatably installed on the lock hook frame (2), and the other end is rotatably connected to the adjusting pin (42).

3. A front box lock for installation on a pulling arm according to claim 2, characterized in that: a guide groove (22) is opened on the lock hook frame (2), one end of the adjusting pin shaft (42) passes through the guide groove (22), and the end of the adjusting pin shaft (42) passing through the guide groove (22) is connected to the adjusting cylinder (51).

4. A front box lock for mounting on a pulling arm according to claim 3, characterized in that: a flip groove (23) is provided on the lock hook frame (2), a flip pin (43) is installed on the lock hook body (4), and one end of the flip pin (43) passes through the flip groove (23).

5. A front box lock for installation on a pulling arm according to claim 1, characterized in that: the connecting assembly (3) includes a sliding frame (31), a sliding cavity (32) is formed in the sliding frame (31), the pulling arm beam (1) passes through the sliding cavity (32), and the lock hook frame (2) is installed on the sliding frame (31).

6. A front box lock for installation on a pulling arm according to claim 5, characterized in that a support frame (24) is arranged between the sliding frame (31) and the pulling arm beam (1), one end of the support frame (24) is installed on the sliding frame (31), and the other end is supported on the pulling arm beam (1).

7. A front box lock for installation on a pulling arm according to claim 6, characterized in that: a mounting hole (11) is opened on the pulling arm beam (1), and a plurality of mounting holes (11) are spaced apart on the pulling arm beam (1); a connecting plate (25) is arranged on the sliding frame (31), and a connecting bolt (251) is arranged on the connecting plate (25), and one end of the connecting bolt (251) passes through the connecting plate (25) and the pulling arm beam (1) in sequence and is connected to the supporting frame (24).