CN216153822U

CN216153822U - Locking device for trolley

Info

Publication number: CN216153822U
Application number: CN202122054000.8U
Authority: CN
Inventors: 许建机
Original assignee: GAC Toyota Motor Co Ltd
Current assignee: GAC Toyota Motor Co Ltd
Priority date: 2021-08-27
Filing date: 2021-08-27
Publication date: 2022-04-01
Anticipated expiration: 2031-08-27

Abstract

The utility model discloses a locking device for a trolley, wherein the trolley is used for placing a workpiece, and the locking device for the trolley comprises: the actuating rod is hinged to the trolley; the actuating rod is hinged with the driving rod; the driving rod can rotate relative to the trolley to an initial state far away from the trolley and drives the execution rod to be arranged on a supporting surface of the trolley and be positioned at a first position; or; the driving rod can rotate relative to the trolley to a working state close to the trolley, and drives one end, far away from the driving rod, of the execution rod to tilt upwards and be located at a second position; the locking assembly is arranged at one end, far away from the driving rod, of the execution rod and is used for locking a workpiece placed on the trolley; the connecting assembly is arranged at one end, far away from the actuating rod, of the driving rod, and the locking device is used for being connected with the trolley in the working state. The workpiece and the trolley can be fixed, the possibility of moving the workpiece on the trolley is reduced, and the stability and the safety are improved.

Description

Locking device for trolley

Technical Field

The utility model relates to the technical field of carrying trolleys, in particular to a locking device for a trolley.

Background

At present, in the process of automobile manufacturing, the weight of most workpieces of an automobile is very large, and a trolley is required to be used for installation and transportation in the working process. The workpiece is placed above the trolley, the trolley is manually pushed, and the trolley drives the workpiece to move. However, the bearing surfaces of the conventional trolley are smooth surfaces, so that when the trolley is vibrated, accelerated or suddenly stopped in the transportation process, a workpiece is easy to separate from the trolley, the possibility of injuring workers is caused, and the production safety is seriously influenced; it is therefore desirable to provide a structure for securing the workpiece to the trolley.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a locking device for a trolley, and aims to solve the problem that a workpiece is unstable and easy to fall off on the trolley.

In order to achieve the above object, the present invention provides a locking device for a carriage on which a workpiece is placed, the locking device comprising: the actuating rod is hinged to the trolley; the actuating rod is hinged with the actuating rod; the driving rod can rotate relative to the trolley to an initial state far away from the trolley and drives the execution rod to be arranged on a supporting surface of the trolley and be located at a first position; or; the driving rod can rotate relative to the trolley to a working state close to the trolley, and drives one end, far away from the driving rod, of the execution rod to tilt upwards and be located at a second position; the locking assembly is arranged at one end, far away from the driving rod, of the execution rod and is used for locking the workpiece placed on the trolley; the connecting assembly is arranged at one end, far away from the actuating rod, of the actuating rod, and the locking device is used for being connected with the trolley in the working state.

Preferably, the locking assembly comprises a supporting rod and a locking block arranged on the supporting rod, the supporting rod is fixed at one end, far away from the driving rod, of the actuating rod, and the supporting rod is perpendicular to the actuating rod.

Preferably, the number of the locking blocks is two, and the two locking blocks are respectively arranged at two ends of one side of the support rod, which is far away from the bearing surface of the trolley.

Preferably, the locking block is detachably connected to the support bar by a bolt.

Preferably, the actuating rod comprises a first connecting section, a second connecting section and a transition section, wherein the transition section is used for connecting the first connecting section and the second connecting section; the first connecting section is hinged with the trolley, the driving rod is hinged to one end of the first connecting section, the second connecting section is parallel to the first connecting section, and the second connecting section is arranged on one side, close to the trolley supporting surface, of the first connecting section; the second connecting section is used for being attached to the supporting surface of the trolley, and the supporting rod is connected to one end, far away from the driving rod, of the second connecting section.

Preferably, the actuating lever includes drive section and bending segment, the drive section with first linkage segment is articulated, the bending segment is fixed in the drive section and keeps away from the one end of actuating lever, the drive section is from keeping away from one side of platform truck is to keeping away from the one side slope of bracing piece.

Preferably, the actuating rod is hinged to the trolley through a support, the support is fixed to a bearing surface of the trolley, and the first connecting section is hinged to the support.

Preferably, the support is fixed to the trolley by bolts.

Preferably, the connecting assembly comprises a lock base, a bolt and a connecting plate, wherein the bolt is slidably connected in the lock base; the connecting plate is fixed on the trolley, and a jack for inserting the plug pin is formed in the connecting plate; when the driving rod is in a working state, the bolt can be inserted into the jack.

Preferably, the connecting assembly further comprises a pressing plate and a shifting fork, the pressing plate is hinged to the lock seat, and the shifting fork is fixed to the pressing plate; the bolt is provided with a ring groove, the shifting fork is inserted in the ring groove of the bolt, and the shifting fork moves in the ring groove.

According to the technical scheme, a workpiece to be locked is moved to the trolley, the driving rod is pressed obliquely downwards, the driving rod drives the execution rod to be linked, the execution rod turns around a hinge shaft of the trolley, the execution rod drives the locking assembly to tilt to support the workpiece, and the workpiece is in a working state and plays a locking role. The relative position of the driving rod and the trolley is fixed through the connecting assembly, and the working state is kept. The locking assembly is connected with the workpiece, so that the possibility of moving the workpiece on the trolley is reduced, and the stability and the safety are improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic view of the overall structure of a locking device of a trolley according to an embodiment of the present invention;

FIG. 2 is a schematic view of a connecting assembly portion of a locking device for a trolley according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a seat portion of the bogie locking device according to an embodiment of the present invention.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				100	Actuating lever	400	Connecting assembly
101	First connecting section	401	Lock seat
				102	Second connecting section	402	Bolt
103	Transition section	403	Connecting plate
				200	Driving rod	404	Jack hole
201	Drive section	405	Pressing plate
				202	Bending section	406	Shifting fork
300	Locking assembly	407	Ring groove
				301	Support rod	500	Support base
302	Locking block

The objects, features and advantages of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the workpieces, the motion situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides a locking device for a trolley.

Referring to fig. 1 to 3, in an embodiment of the present invention, the trolley is used for placing a workpiece, the locking assembly includes an actuating rod 100, and the actuating rod 100 is hinged to the trolley; the driving rod 200, the actuating rod 100 is hinged with the driving rod 200; the driving rod 200 can rotate relative to the trolley to an initial state far away from the trolley and drive the actuating rod 100 to be placed on a supporting surface of the trolley and be located at a first position; or the driving rod 200 can rotate relative to the trolley to a working state close to the trolley and drive the trolley to execute, and one end of the driving rod 100 far away from the driving rod 200 tilts upwards and is located at a second position; a locking assembly 300, the locking assembly 300 is arranged at one end of the actuating lever 100 far away from the driving lever 200, and the locking assembly 300 is used for locking the supported piece; the connecting assembly 400 is arranged at one end of the driving rod 200 far away from the actuating rod 100, and when the driving rod 200 is in a working state, the locking device is used for being connected with the trolley. The workpiece to be locked is carried to the trolley with the locking assembly 300 positioned below the workpiece. The driving rod 200 is manually pressed towards the oblique lower side far away from one side of the workpiece, the driving rod 200 drives the actuating rod 100 to be linked, the actuating rod 100 overturns around the hinge shaft of the trolley, one end of the actuating rod 100 close to the locking assembly 300 is tilted, and the locking assembly 300 is lifted and connected with the workpiece. The driving rod 200 is in an operating state at this time, and plays a role in locking. The relative position of the driving rod 200 and the trolley is fixed through the connecting assembly 400, and the driving rod 200 is kept in the working state. The locking assembly 300 is coupled to the workpiece to reduce the likelihood of the workpiece moving on the trolley and to improve stability and safety.

In one embodiment, the locking assembly 300 includes a support rod 301 and a locking block 302 disposed on the support rod 301, the support rod 301 is fixed to an end of the actuating rod 100 away from the driving rod 200, and the support rod 301 is perpendicular to the actuating rod 100. The workpiece is supported by the support rods 301, and the contact area with the workpiece is increased by the support rods 301. The locking block 302 is used to connect the workpiece, further reducing the likelihood of the workpiece falling off the trolley.

Further, the support rod 301 is a rectangular rod, and the actuating rod 100 is connected to a middle portion of the support rod 301. The actuating rod 100 is fixedly connected with the supporting rod 301, and in the embodiment, the actuating rod 100 is welded with the supporting rod 301. The supporting rod 301 is in a horizontal state, and after the workpiece is placed on the supporting rod 301, the stability of the workpiece in the horizontal direction is improved, and the possibility that the workpiece inclines and slides off the supporting rod 301 is reduced.

In an embodiment, two locking blocks 302 are provided, and the two locking blocks 302 are respectively disposed at two ends of the supporting rod 301 far away from the loading surface of the trolley. According to the shape of the workpiece, the locking block 302 is clamped in a groove below the workpiece, when the workpiece shakes, the locking block 302 limits the horizontal movement of the workpiece, and the stability of the workpiece on the trolley is improved.

Further, the lock block 302 is a rectangular block. In yet another embodiment of the present invention, the locking block 302 may be coupled to the workpiece by a bolt, snap, or the like. The connection between the locking block 302 and the supporting rod 301 and the workpiece is further improved, and the stability of the workpiece on the trolley is further improved.

In one embodiment, the locking block 302 is removably attached to the support rod 301 by a bolt. When the locking block 302 is damaged, or the shape of the locking block 302 needs to be changed according to different workpieces, the supporting rod 301 can be separated from the locking block 302 through bolts, maintenance or replacement is carried out, and manual operation is facilitated.

Further, a bolt vertically penetrates through the locking block 302 at a side away from the support rod 301, and one end of the bolt penetrating through the locking block 302 is inserted through and screwed to the support rod 301. In order to make the connection between the locking blocks 302 and the supporting rod 301 more stable, each locking block 302 is provided with two bolts in the present embodiment.

In one embodiment, the actuating rod 100 includes a first connecting section 101, a second connecting section 102, and a transition section 103, the transition section 103 being used to connect the first connecting section 101 and the second connecting section 102; the first connecting section 101 is hinged with the trolley, the driving rod 200 is hinged to one end of the first connecting section 101, the second connecting section 102 is parallel to the first connecting section 101, and the second connecting section 102 is arranged on one side, close to a trolley supporting surface, of the first connecting section 101; the second connecting section 102 is used for fitting a supporting surface of the trolley, and the supporting rod 301 is connected to one end of the second connecting section 102 far away from the driving rod 200. Through the arrangement, the second connecting section 102 can be closer to the trolley, the heights of the supporting rod 301 and the locking block 302 are reduced, and the possibility that a workpiece collides with the locking assembly 300 when placed on the trolley is reduced.

Further, the first connecting section 101, the second connecting section 102 and the transition section 103 are integrally formed, so that the structural strength of the actuating rod 100 is improved, and the possibility of damage to the actuating rod 100 is reduced.

In an embodiment, the driving rod 200 includes a driving section 201 and a bending section 202, the driving section 201 is hinged to the first connecting section 101, the bending section 202 is fixed to an end of the driving section 201 away from the driving rod 200, and the driving section 201 inclines from a side away from the trolley to a side away from the supporting rod 301. The driving rod 200 is arranged in a bending mode, and the bending section 202 extends upwards to reach a sufficient height, so that manual operation is facilitated.

Further, the angle between the driving section 201 and the bending section 202 is 90-130 °. The range of tilt of the bending section 202 is limited to a range that is convenient for manual operation.

In one embodiment, referring to fig. 1 and 3, the actuating rod 100 is hinged to the trolley through a support 500, the support 500 is fixed to a carrying surface of the trolley, and the first connecting section 101 is hinged to the support 500. When the actuating lever 100 is damaged, the actuating lever 100 and the support 500 can be directly detached and replaced, and manual maintenance is facilitated.

Further, a hinge shaft is fixed on the support 500, the axial direction of the hinge shaft is the same as the length direction of the support rod 301, the hinge shaft on the support 500 penetrates through the first connection section 101, and the first connection section 101 is rotatably connected with the hinge shaft of the support 500.

In one embodiment, the support 500 is secured to the trolley by bolts. When the support 500 is damaged or the locking device and the trolley need to be detached, the bolt on the support 500 is directly unscrewed, and the support 500 and the trolley are separated, so that the manual operation is convenient.

In one embodiment, referring to fig. 1 and 2, the connecting assembly 400 includes a lock seat 401, a latch 402 and a connecting plate 403, wherein the latch 402 is slidably connected in the lock seat 401; the connecting plate 403 is fixed on the trolley, and a jack 404 for plugging the plug 402 is formed in the connecting plate 403; when the driving rod 200 is in the working state, the latch 402 can be inserted into the insertion hole 404. When the driving rod 200 is in the working state, the driving rod 200 is connected with the trolley through the connecting assembly 400, the working state of the driving rod 200 is maintained, the possibility that the driving rod 200 needs to be pressed all the time by manpower is reduced, and manpower is saved.

Further, a connecting plate 403 is vertically welded to a supporting surface of the trolley, and a jack 404 is formed in the vertical side of the connecting plate 403. The driving rod 200 is pressed downwards, the driving rod 200 drives the pin 402 and the lock seat 401 to descend, and the driving rod 200 pushes the pin 402 to be inserted into the insertion hole 404 of the connecting plate 403 after reaching the working state.

In one embodiment, the connecting assembly 400 further comprises a pressing plate 405 and a shifting fork 406, wherein the pressing plate 405 is hinged to the lock base 401, and the shifting fork 406 is fixed to the pressing plate 405; the bolt 402 is provided with a ring groove 407, the fork 406 is inserted into the ring groove 407 of the bolt 402, and the fork 406 moves in the ring groove 407. Because the bolt 402 needs to bear force, the manual force contacting the bolt 402 is easily damaged by the gap between the bolt 402 and the lock seat 401. In this design, the latch 402 can be moved by manually pulling the pressing plate 405, thereby reducing the possibility of injury caused by manually pushing the latch 402.

Further, a groove 407 is formed in a section of the plug 402 located away from the connection plate 403. Opposite end surfaces of the ring groove 407 are inclined surfaces, and the end surfaces are inclined away from each other in the radial direction of the ring pin 402. The ring groove 407 of the bolt 402 is inserted into the opening of the fork 406. The fork 406 can be turned inside the groove 407 at an angle, and when the pressure plate 405 is pressed, the fork 406 takes the pin 402 out of the receptacle 404 of the plate 403.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A locking device for a dolly for placing a workpiece, characterized by comprising:

the actuating rod is hinged to the trolley;

the actuating rod is hinged with the actuating rod;

the driving rod can rotate relative to the trolley to an initial state far away from the trolley and drives the execution rod to be arranged on a supporting surface of the trolley and be located at a first position; or; the driving rod can rotate relative to the trolley to a working state close to the trolley, and drives one end, far away from the driving rod, of the execution rod to tilt upwards and be located at a second position;

the locking assembly is arranged at one end, far away from the driving rod, of the execution rod and is used for locking the workpiece placed on the trolley;

the connecting assembly is arranged at one end, far away from the actuating rod, of the actuating rod, and the locking device is used for being connected with the trolley in the working state.

2. The locking device for a trolley of claim 1 wherein the locking assembly includes a support bar and a locking block disposed on the support bar, the support bar being secured to an end of the actuating bar remote from the drive bar, the support bar being perpendicular to the actuating bar.

3. The locking device for the trolley according to claim 2, wherein there are two locking blocks, and the two locking blocks are respectively disposed at two ends of the supporting rod on a side away from the loading surface of the trolley.

4. The locking device for a dolly of claim 3, wherein the locking block is detachably attached to the support bar by a bolt.

5. The locking device for a trolley according to claim 2, wherein the actuating rod includes a first connecting section, a second connecting section, and a transition section for connecting the first connecting section and the second connecting section; the first connecting section is hinged with the trolley, the driving rod is hinged to one end of the first connecting section, the second connecting section is parallel to the first connecting section, and the second connecting section is arranged on one side, close to the trolley supporting surface, of the first connecting section; the second connecting section is used for being attached to the supporting surface of the trolley, and the supporting rod is connected to one end, far away from the driving rod, of the second connecting section.

6. The locking device for a trolley according to claim 5, wherein the driving rod comprises a driving section and a bending section, the driving section is hinged with the first connecting section, the bending section is fixed at one end of the driving section far away from the driving rod, and the driving section inclines from one side far away from the trolley to one side far away from the supporting rod.

7. The locking device for a trolley according to claim 5, wherein the actuating lever is hinged to the trolley by a support fixed to the carrying surface of the trolley, and the first connecting section is hinged to the support.

8. The locking device for a dolly of claim 7, wherein the holder is fixed to the dolly by a bolt.

9. The locking apparatus for a dolly of any one of claims 1 to 8, wherein the connecting member comprises a lock base, a bolt slidably coupled in the lock base, and a connecting plate; the connecting plate is fixed on the trolley, and a jack for inserting the plug pin is formed in the connecting plate; when the driving rod is in a working state, the bolt can be inserted into the jack.

10. The locking device for a trolley according to claim 9, wherein the connecting assembly further comprises a pressing plate hinged to the lock housing and a shifting fork fixed to the pressing plate; the bolt is provided with a ring groove, the shifting fork is inserted in the ring groove of the bolt, and the shifting fork moves in the ring groove.