A supermarket trolley wheel mounting device

Abstract

The utility model discloses a trolley caster mounting device for supermarket, include: work table, torque motor, caster seat and trolley frame, torque motor is installed below the table top of work table, power output shaft passes the table top of work table, caster seat is installed at the top of power output shaft, the top of caster seat is equipped with the positioning sleeve wrench, trolley frame includes bottom rail, removes rotary seat and power support, bottom rail is composed of two parallel slide rails of fixed on work table table top, the installation position of torque motor is located slide rail front end, removes rotary seat and can remove installation on bottom rail, power support is installed on removes rotary seat, through above -mentioned mode, the utility model can obviously improve the installation efficiency of caster and reduce the labor intensity when installing.

Description

Technical Field

[0001] This utility model relates to the field of handcart assembly equipment, and in particular to a supermarket handcart caster installation device. Background Technology

[0002] Supermarket shopping carts are equipped with four casters at the bottom. The traditional way to install the casters is to fix the bottom of the shopping cart upwards and then have the workers install the casters in their respective positions. This method has two problems. First, it is purely manual assembly, and the assembly effect depends solely on the experience and feel of the assembler. The force applied each time is uneven, with some being installed too tightly and others too loosely. Second, after assembling one caster, the position must be changed before installing the other caster. Overall, the assembly quality is unstable and the efficiency is relatively low. Utility Model Content

[0003] The main technical problem solved by this utility model is to provide a supermarket handcart caster installation device, which can improve the installation efficiency of handcart casters and reduce the labor intensity of on-site personnel.

[0004] To solve the above-mentioned technical problems, the present invention provides a technical solution: a supermarket trolley caster mounting device, comprising: a workbench, a torque motor, a caster seat, and a trolley frame. The torque motor is mounted below the workbench surface, and the power output shaft of the torque motor passes through the workbench surface. The caster seat is mounted on top of the power output shaft and can rotate with the rotation of the power output shaft. A positioning socket wrench is fixedly mounted on the top of the caster seat, and a socket is provided at the top of the positioning socket wrench. The center line of the socket is aligned with the center line of the trolley frame. The center lines of the power output shafts are collinear; the trolley frame includes a base rail, a movable rotating seat, and an assist bracket. The base rail consists of two parallel slide rails fixed to the workbench surface. The torque motor is mounted at the front end of the slide rails. The movable rotating seat is movably mounted on the base rail. The assist bracket is mounted on the movable rotating seat and can be driven by the movable rotating seat to move horizontally along the base rail while rotating on the movable rotating seat. This allows the caster mounting positions at the bottom of the trolley body, placed on the assist bracket, to be aligned with the torque motor mounting positions as needed.

[0005] In a preferred embodiment of the present invention, the movable rotating seat includes a base plate and a rotating shaft. A plurality of sliders matching the base rail are installed below the base plate, and the rotating shaft is installed in the middle of the base plate.

[0006] In a preferred embodiment of this utility model, the positioning socket wrench further includes a connecting plate, the connecting plate being fan-shaped in general, the socket being disposed at the top of the fan shape, the center of the fan shape coinciding with the center of the socket, a plurality of positioning holes being provided on the fan surface of the fan shape, the center of all positioning holes being equidistant from the center of the socket, and the top of the caster seat being provided with a lower insertion hole corresponding to each of the positioning holes, and an insertion rod being installed between the positioning hole and the corresponding lower insertion hole.

[0007] In a preferred embodiment of this utility model, the assistive bracket includes a rotating plate, an adaptive track, and an assistive support structure. The rotating plate is fixed on the rotating shaft of the movable rotating seat. The adaptive track consists of two slide rails symmetrically arranged in a figure-eight shape on the rotating plate. There are two assistive support structures symmetrically installed on the adaptive track. Each assistive support structure consists of two movable support columns of different heights, namely a front support column and a rear support column. The rear support column is higher than the front support column. The bottom of the column base of both the front and rear support columns is equipped with a slider that matches the corresponding slide rail. A front assistive lifting mechanism is installed on the column body of the front support column, and a rear assistive lifting mechanism is installed on the column body of the rear support column. The front support column has a linear slide rail as its entire body. The front power assist lifting mechanism includes a front support, a power assist spring, and a locking block. The locking block is secured to the lower part of the column body. The power assist spring is mounted on the column body above the locking block. A slider matching the linear slide rail is installed on the back of the front support. The slider is mounted on the column body above the power assist spring. An L-shaped front support plate is installed on the front of the front support. A horizontal hinge seat is installed on the front of the front support, and the tail end of the front support plate is mounted on the horizontal hinge seat. The rear support column has a linear slide rail as its body. The rear power assist lifting mechanism includes a rear support, a power assist spring, and a locking block. The locking block is secured to the lower part of the column body. The power assist spring is mounted on the column body above the locking block. A slider matching the linear slide rail is installed on the back of the rear support. The slider is mounted on the column body above the power assist spring. A frame hook is installed on the front of the rear support.

[0008] In a preferred embodiment of this utility model, the assistive bracket includes a rotating plate, support columns, an assistive spring, a locking block, and a lifting seat. The rotating plate is mounted on the movable rotating seat. There are two support columns, symmetrically fixed at both ends of the rotating plate. The column body of each support column is a linear slide rail. A locking block is installed at the lower part of the column body of each support column. The assistive spring is fitted onto the column body above the locking block. A support rod perpendicular to both the support columns and the rotating plate is installed on the side of the lifting seat. A slider matching the linear slide rail is installed on the back of the lifting seat. The slider is installed on the column body above the assistive spring. The two ends of the rotating plate are symmetrically folded downwards and then outwards at 90° intervals, forming a stepped structure. The two support columns are symmetrically fixed on the stepped surfaces at both ends. Both ends of the support rod are provided with stops.

[0009] The beneficial effects of this utility model are as follows: This utility model is a special caster installation device designed for the characteristics of supermarket trolleys. By using this device, when installing casters, you only need to place the trolley on the device, and then put the bolt sleeve of the positioning wrench on the top of the caster seat onto the connecting bolt of the caster. The torque motor can then rotate the caster to the bottom of the trolley according to the set torque. Moreover, after completion, you only need to separate the positioning wrench from the caster, and you can quickly switch the installation position of the next caster to the top of the positioning wrench by rotating it with one hand. In this way, not only is the torque of the caster installation position uniform each time the caster is installed, and the quality stability is significantly improved, but the on-site personnel do not need to change work positions during assembly, the overall assembly efficiency is significantly improved, and the labor intensity is significantly reduced. Attached Figure Description

[0010] Figure 1 This is a three-dimensional structural diagram of a preferred embodiment of the present invention;

[0011] Figure 2 This is a three-dimensional structural diagram of another preferred embodiment of the present invention;

[0012] Figure 3 This is a schematic diagram of the rotating structure in the embodiment shown;

[0013] Figure 4 yes Figure 2 A schematic diagram of the connecting plate in the middle;

[0014] The components in the attached diagram are labeled as follows:

[0015] 1. Casters, 2. Workbench, 3. Torque motor, 4. Caster seat, 5. Positioning socket wrench, 501. Connecting plate, 502. Socket, 503. Positioning hole, 6. Bottom rail, 7. Base plate, 8. Shaft, 9. Rotating plate, 10. Adaptive track, 11. Front support column, 12. Rear support column, 13. Support column, 14. Front column foot, 15. Rear column foot, 16. Assist spring, 17. Locking block, 18. Front support, 19. Rear support, 20. Front support plate, 21. Frame hook, 22. Lifting seat, 23. Support rod. Detailed Implementation

[0016] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0017] Please see Figure 1 , Figure 3 and Figure 4 A preferred embodiment of this utility model includes:

[0018] A supermarket trolley caster mounting device includes: a workbench 2, a torque motor 3, caster seats 4, and a trolley frame;

[0019] The torque motor 2 is installed below the workbench surface. The power output shaft of the torque motor 3 passes through the workbench surface 2. The caster seat 4 is installed on the top of the power output shaft and can rotate with the rotation of the power output shaft. A positioning socket wrench 5 is fixedly installed on the top of the caster seat 4. The positioning socket wrench 5 also includes a connecting plate 501. The connecting plate 501 is installed on the top of the socket wrench 5. The connecting plate 501 is fan-shaped. A socket 502 is set at the top of the fan shape. The center line of the socket 502 is collinear with the center line of the power output shaft. The center of the fan shape coincides with the center of the socket 502. Three positioning holes 503 are set on the fan surface of the fan shape. The distance from the center of all positioning holes 503 to the center of the socket 502 is equal. The top of the caster seat 4 is provided with a lower insertion hole corresponding to each positioning hole 503. A plug is installed between the positioning hole 503 and the corresponding lower insertion hole. In this way, when installing caster 1, the positioning socket wrench 5 can rotate around the center of the socket 502 under the drive of the torque motor 3, without misalignment. Moreover, when assembling casters 1 of different specifications for supermarket handcarts, only the corresponding positioning socket wrench 5 needs to be replaced according to the specifications. The cart frame includes a bottom rail 6, a movable rotating seat, and an auxiliary support bracket. The bottom rail 6 consists of two parallel slide rails fixed on the workbench 2. The mounting position of the torque motor 3 is located at the front end of the slide rails. The movable rotating seat includes a base plate 7 and a rotating shaft 8. Multiple sliders matching the bottom rail 6 are installed under the base plate 7. The rotating shaft 8 is installed in the middle of the base plate 6. The auxiliary support bracket is installed on the movable rotating seat. In this way, the auxiliary support bracket can be driven by the movable rotating seat to move horizontally along the bottom rail 6 while rotating around the rotating shaft 8, so that the mounting position of the caster at the bottom of the cart body placed on the auxiliary support bracket can be aligned with the mounting position of the torque motor 3 as needed.

[0020] The assistive support includes a rotating plate 9, an adaptive track 10, and an assistive support structure. The rotating plate 9 is fixed on the rotating shaft 8 of the movable rotating seat. The adaptive track 10 consists of two slide rails symmetrically arranged in a figure-eight shape on the rotating plate 9. The assistive support structure has two symmetrically installed on the adaptive track 10. The assistive support structure consists of two movable support columns of different heights, namely a front support column 11 and a rear support column 12. The rear support column 12 is higher than the front support column 11. The bottom of the front column foot 14 of the front support column 11 and the rear column foot 15 of the rear support column 12 are equipped with sliders that match the corresponding slide rails. A front assistive lifting mechanism is installed on the column body of the front support column 11, and a rear assistive lifting mechanism is installed on the column body of the rear support column 12.

[0021] The front support column 11 has a linear slide rail as its entirety. The front assist lifting mechanism includes a front support 18, an assist spring 16, and a locking block 17. The locking block 17 is secured to the lower part of the column. The assist spring 16 is fitted onto the column above the locking block 17. A slider matching the linear slide rail is mounted on the back of the front support 18. The slider is mounted on the column above the assist spring 16. An L-shaped front support plate 20 is mounted on the front of the front support 18. The tail end of the front support plate 20 is connected to the front support 18 via a horizontal hinge seat mounted on the front of the front support 18.

[0022] The rear support column 12 has a linear slide rail as its column body. The rear power lifting mechanism includes a rear support 19, a power spring 16, and a locking block 17. The locking block 17 is fixed to the lower part of the column body. The power spring 16 is fitted onto the column body above the locking block 17. A slider matching the linear slide rail is installed on the back of the rear support 19. The slider is installed on the column body above the power spring 16. A frame hook 21 is installed on the front of the rear support 19.

[0023] In practical use, the distance between the two front support columns 11 and the two rear support columns 12 can be freely adjusted by simultaneously moving them on the adaptive track 10, thus accommodating the size of handcarts of different specifications. After adjustment, when placing the handcart, the connecting rod at the back of the handcart can be hooked onto the frame hooks 21 on the two rear support columns 12, while the front of the handcart can be supported by two L-shaped front support plates 20. These two L-shaped front support plates 20 can rotate in a fan shape within the plane defined by the horizontal hinge seat to accommodate the structure of products of different specifications. Furthermore, since both the front support columns 11 and the rear support columns 12 are equipped with assist springs 16, on-site personnel can easily install the casters. Simply place caster 1 on caster seat 4, manually align the installation position, and start the torque motor 3. The caster 1 will be installed on the vehicle body under the set torque. After installing one caster 1, simply push it upwards gently. With the help of the assist spring, the entire vehicle body will be pushed upwards until the bolt cap on caster 1 is dislodged from the socket 502 on the positioning socket wrench 5. Then push it to the side to rotate the entire upper rail 9 with the vehicle body, switching the installation position of the next caster to above the caster seat 4. Then press down gently to complete the alignment of caster 1. The whole process is convenient and quick, significantly improving the efficiency of installing handcart casters 1 while significantly reducing the workload of on-site personnel.

[0024] Please see Figure 2 , Figure 3 and Figure 4 A preferred embodiment of this utility model includes:

[0025] A supermarket trolley caster mounting device includes: a workbench 2, a torque motor 3, a caster seat 4, and a trolley frame; the torque motor 2 is mounted below the workbench surface, the power output shaft of the torque motor 3 passes through the workbench surface 2, the caster seat 4 is mounted on top of the power output shaft and can rotate with the rotation of the power output shaft, a positioning socket wrench 5 is fixedly mounted on the top of the caster seat 4, and the positioning socket wrench 5 further includes a connecting plate 501, the connecting plate 501 being mounted on... Mounted on the top of the socket wrench 5, the connecting plate 501 is fan-shaped, with a socket 502 at the top of the fan. The center line of the socket 502 is collinear with the center line of the power output shaft. The center of the fan coincides with the center of the socket 502. Three positioning holes 503 are provided on the surface of the fan, with the center of all positioning holes 503 being equidistant from the center of the socket 502. The top of the caster seat 4 has a lower insertion hole corresponding to each positioning hole 503, and a insertion rod is installed between the positioning hole 503 and the corresponding lower insertion hole. Thus, when installing the caster 1, the positioning socket wrench 5 can rotate around the center of the socket 502 under the drive of the torque motor 3 without misalignment. Moreover, when assembling different sizes of supermarket handcart casters 1, only the corresponding positioning socket wrench 5 needs to be replaced according to the specifications.

[0026] The trolley frame includes a base rail 6, a movable rotating seat, and an assist bracket. The base rail 6 consists of two parallel slide rails fixed to the workbench 2. The torque motor 3 is mounted at the front end of the slide rails. The movable rotating seat includes a base plate 7 and a rotating shaft 8. Multiple sliders matching the base rail 6 are installed below the base plate 7. The rotating shaft 8 is installed in the middle of the base plate 6. The assist bracket is mounted on the movable rotating seat. In this way, the assist bracket can be driven by the movable rotating seat to move horizontally along the base rail 6 while rotating around the rotating shaft 8, so that the caster mounting position at the bottom of the trolley body placed on the assist bracket can be aligned with the mounting position of the torque motor 3 as needed.

[0027] The assistive support includes a rotating plate 9, support columns 13, assistive springs 16, locking blocks 17, and a lifting seat 22. The rotating plate 9 is mounted on the rotating shaft 8. There are two support columns 13, symmetrically fixed at both ends of the rotating plate 9. The column body of each support column 13 is a linear slide rail. A locking block 17 is installed at the lower part of the column body of each support column 13. The assistive spring 16 is fitted onto the column body above the locking block. The front of the lifting seat 22 is equipped with a support rod 23 that is perpendicular to both the support column 13 and the rotating plate 9. Both ends of the support rod 22 are provided with stops. The back of the lifting seat 22 is equipped with a slider that matches the linear slide rail. The slider is installed on the column body above the assistive spring 16. The two ends of the rotating plate 9 are symmetrically folded downwards and then outwards at 90° intervals, forming a stepped structure. The two support columns 8 are symmetrically fixed on the stepped surfaces at both ends. By adopting this structure, when actually installing the casters, the trolley body can be supported by two support rods. Then, according to the installation position of the casters, the movable rotating seat is pushed to position the caster installation position directly above the torque motor. Then, pressing down utilizes the elasticity of the assist spring to connect the bolts on the casters to the installation position. After installation, a gentle push upwards utilizes the elasticity of the assist spring to disengage the sleeve from the corresponding bolts, allowing for switching to the next caster installation position. The whole process is convenient and quick, significantly reducing labor and greatly improving production efficiency.

[0028] In this embodiment, when installing caster 1, simply place caster 1 on caster seat 4, manually align the installation position, and then start the torque motor 3. The caster 1 can be installed on the vehicle body under the set torque. After installing one caster 1, simply push it upwards gently. With the assistance of the assist spring, the entire vehicle body will be pushed upwards until the bolt cap on caster 1 is dislodged from the socket 502 on the positioning socket wrench 5. Then, push it to the side to rotate the entire upper rail 9 with the vehicle body, switching the installation position of the next caster to above the caster seat 4. Then, gently press down to complete the alignment of caster 1. The whole process is convenient and quick, significantly improving the efficiency of installing handcart casters 1 while significantly reducing the workload of on-site personnel.

[0029] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A supermarket trolley caster mounting device characterised in that, The supermarket trolley caster mounting device includes: a workbench, a torque motor, caster seats, and a trolley frame. The torque motor is mounted below the workbench surface, and its power output shaft passes through the workbench surface. The caster seats are mounted on top of the power output shaft and can rotate with the power output shaft. A positioning socket wrench is fixedly mounted on the top of the caster seats, and a socket is provided at the top of the positioning socket wrench. The center line of the socket is collinear with the center line of the power output shaft. The trolley frame includes a bottom rail, a movable rotating seat, and an assist bracket. The bottom rail consists of two parallel slide rails fixed on the workbench surface. The torque motor is mounted at the front end of the slide rails. The movable rotating seat is movably mounted on the bottom rail. The assist bracket is mounted on the movable rotating seat and can be driven by the movable rotating seat to move horizontally along the bottom rail while rotating on the movable rotating seat. This allows the caster mounting positions at the bottom of the trolley frame, placed on the assist bracket, to be aligned with the torque motor mounting positions as needed.

2. The supermarket trolley wheel mounting arrangement of claim 1, wherein, The movable rotating seat includes a base plate and a rotating shaft. Multiple sliders that match the base rail are installed below the base plate, and the rotating shaft is installed in the middle of the base plate.

3. The supermarket cart caster mounting device of claim 1, wherein, The positioning socket wrench also includes a connecting plate, which is fan-shaped in general. The socket is located at the top of the fan shape, and the center of the fan shape coincides with the center of the socket. Multiple positioning holes are provided on the fan surface of the fan shape. The distance from the center of all positioning holes to the center of the socket is equal. The top of the caster seat is provided with a lower insertion hole that corresponds to each of the positioning holes. A plug rod is installed between the positioning hole and the corresponding lower insertion hole.

4. The supermarket cart caster mounting device of claim 1, wherein, The assistive support bracket includes a rotating plate, an adaptive track, and an assistive support structure. The rotating plate is fixed on the rotating shaft of the movable rotating seat. The adaptive track consists of two slide rails symmetrically arranged in a figure-eight shape on the rotating plate. There are two assistive support structures symmetrically installed on the adaptive track. Each assistive support structure consists of two movable support columns of different heights, namely a front support column and a rear support column. The rear support column is higher than the front support column. The bottom of the column base of both the front and rear support columns is equipped with a slider that matches the corresponding slide rail. A front assistive lifting mechanism is installed on the column body of the front support column, and a rear assistive lifting mechanism is installed on the column body of the rear support column.

5. The supermarket handcart caster mounting device according to claim 4, characterized in that, The front support column is a linear slide rail. The front assist lifting mechanism includes a front support, an assist spring, and a locking block. The locking block is fixed to the lower part of the column. The assist spring is fitted onto the column above the locking block. A slider matching the linear slide rail is installed on the back of the front support. The slider is installed on the column above the assist spring. An L-shaped front support plate is installed on the front of the front support.

6. The supermarket handcart caster mounting device according to claim 5, characterized in that, A horizontal hinge seat is mounted on the front of the front support, and the tail end of the front support plate is mounted on the horizontal hinge seat.

7. The supermarket handcart caster mounting device according to claim 4, characterized in that, The rear support column has a linear slide rail as its body. The rear power assist lifting mechanism includes a rear support, a power assist spring, and a locking block. The locking block is secured to the lower part of the column body. The power assist spring is mounted on the column body above the locking block. A slider matching the linear slide rail is installed on the back of the rear support. The slider is installed on the column body above the power assist spring. A frame hook is installed on the front of the rear support.

8. The supermarket handcart caster mounting device according to claim 1, characterized in that, The assist bracket includes a rotating plate, support columns, assist springs, locking blocks, and a lifting seat. The rotating plate is mounted on the movable rotating seat. There are two support columns, symmetrically fixed at both ends of the rotating plate. The column body of each support column is a linear slide rail. A locking block is installed at the lower part of the column body of each support column. The assist spring is fitted onto the column body above the locking block. A support rod perpendicular to both the support column and the rotating plate is installed on the side of the lifting seat. A slider matching the linear slide rail is installed on the back of the lifting seat. The slider is mounted on the column body above the assist spring.

9. The supermarket handcart caster mounting device according to claim 8, characterized in that, The rotating plate folds symmetrically at both ends, first downwards and then outwards at a continuous 90° angle, forming a stepped structure. Two support columns are symmetrically fixed on the stepped surfaces at both ends.

10. The supermarket handcart caster mounting device according to claim 8, characterized in that, Both ends of the support rod are equipped with stoppers.

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