Universal wheel folding structure for assembling mesh belt chain positioning device

Abstract

The utility model belongs to the technical field of equipment assembly, and particularly relates to a universal wheel folding structure for assembling a mesh belt chain positioning device. Comprising a pulley assembly, a pipe sleeve piece arranged at the bottom of the positioning device and used for being connected with the pulley assembly in a matched mode, and a positioning mechanism used for limiting or releasing limiting of the pulley assembly to be turned over relative to the pipe sleeve piece. The pipe sleeve piece is used for supporting the pulley assembly so that the pulley assembly can fall to the ground or the pulley assembly can be turned over relative to the pipe sleeve piece so that the pipe sleeve piece can fall to the ground. When an assembly part is placed on the positioning device and the overall mass is large, the pulley assembly can be folded and put away and is directly supported by the pipe sleeve piece on the ground, so that the problem that a traditional brake universal wheel is prone to sliding under the heavy load condition is solved, after assembly is completed, the overall mass of the positioning device is reduced, and the assembly efficiency is improved. After the pulley assembly is folded and unfolded downwards, positioning is conducted through the positioning mechanism, and therefore the positioning device can be easily moved through the pulley assembly.

Description

[Technical Field]

[0002] This application belongs to the field of equipment assembly technology, specifically relating to a universal wheel folding structure for assembling a mesh belt chain positioning device. [Background Technology]

[0004] In the tobacco leaf production process, conveyor belts typically employ a side-chain structure, using perforated stainless steel plates (mesh plates) to support and transport the tobacco leaves. The main function of the conveyor is to transport the tobacco leaves through different processing zones of the re-drying machine for drying, cooling, and rehydration. The conveyor belt includes chains, mesh plates, pins, and movable side plates. The conveyor belt mesh is composed of multiple mesh plates hinged together. Movable side plates are installed on the perforated plates, forming a seal with the mesh plates to prevent the tobacco leaves from flowing out from the sides of the mesh plates. After prolonged use and wear, new chains need to be purchased. Since new chains inevitably have length variations, all mesh plates and chains are connected through oblong holes to compensate for these variations. However, during assembly, if the center distance between the left and right chains is inconsistent with the center distance of the drive sprockets on the equipment, it will exacerbate the wear of the chains and sprockets and cause obstruction during operation. Therefore, a positioning device is needed for post-repair assembly to ensure that the center distance between the left and right chain rollers is consistent with the center distance of the sprockets. However, this positioning device has a large overall weight after placing the assembly parts, and traditional brake casters are not stable enough and are prone to slipping during assembly. [Utility Model Content]

[0006] To address the problem that existing brake casters are prone to slippage and lack stability when applied to positioning devices with large mass, this application provides a folding structure for casters used in assembling mesh belt chain positioning devices.

[0007] This application is achieved through the following technical solution:

[0008] A folding structure for assembling a mesh belt chain positioning device includes a pulley assembly, a tube assembly located at the bottom of the positioning device and connected to the pulley assembly, and a positioning mechanism for restricting or releasing the folding of the pulley assembly relative to the tube assembly. The tube assembly is used to support the pulley assembly so that the pulley assembly is on the ground or to allow the pulley assembly to fold relative to the tube assembly so that the tube assembly is on the ground.

[0009] As described above, a universal wheel folding structure for assembling a mesh belt chain positioning device includes a connecting groove inside the tube assembly for the pulley assembly to cooperate with, a clearance groove on one side of the tube assembly for the pulley assembly to fold to the side and disengage from the connecting groove, and a clearance opening on the other opposite side of the tube assembly for the pulley assembly to extend out from the connecting groove.

[0010] As described above, in a universal wheel folding structure for assembling a mesh belt chain positioning device, the top of the connecting groove is at a higher level than the top of the clearance groove and the clearance opening, so as to form a limiting portion between the top of the connecting groove and the top of the clearance opening to restrict the folding of the pulley assembly relative to the tube assembly.

[0011] As described above, a universal wheel folding structure for assembling a mesh belt chain positioning device includes a positioning pin on the pulley assembly and a positioning slot on the tube assembly into which the positioning pin engages.

[0012] As described above, in a universal wheel folding structure for assembling a mesh belt chain positioning device, when the positioning pin is engaged with the positioning slot, the top of the pulley assembly extends into the limiting part.

[0013] As described above, a universal wheel folding structure for assembling a mesh belt chain positioning device includes a pulley assembly comprising a square tube column for extending into the connecting groove and a pulley disposed at the bottom of the square tube column; or comprising the square tube column for extending into the connecting groove, the pulley disposed at the bottom of the square tube column, and a connecting rod for connecting adjacent square tube columns.

[0014] The universal wheel folding structure for assembling a mesh belt chain positioning device, as described above, wherein the pulley is a universal wheel.

[0015] As described above, a universal wheel folding structure for assembling a mesh belt chain positioning device includes a support frame and angle steel rails on both sides of the support frame for placing the chain. The chains on both sides of the support frame are used to overlap the two ends of the mesh plate and the movable side plates at both ends of the mesh plate, respectively.

[0016] As described above, in a universal wheel folding structure for assembling a mesh belt chain positioning device, the square tube column is folded relative to the connecting groove until the bottom horizontal height of the square tube column is higher than the bottom horizontal height of the tube assembly, and the bottom of the tube assembly is supported by the ground.

[0017] The universal wheel folding structure for assembling a mesh belt chain positioning device as described above further includes a limiting mechanism (5) for limiting the sliding distance of the square tube column along the connecting groove. The limiting mechanism includes a limiting column disposed on the square tube column and a limiting groove disposed on the positioning device and slidably connected to the limiting column.

[0018] Compared with the prior art, this application has the following advantages:

[0019] This application discloses a folding structure for a universal wheel used in assembling a mesh belt chain positioning device. By setting a tubular assembly at the bottom of the positioning device and connecting it with a foldable pulley assembly, and by using a positioning mechanism to restrict or release the folding state of the pulley assembly, the pulley assembly can be folded up when the overall mass of the assembled parts placed on the positioning device is large. The tubular assembly then directly supports the ground, thus avoiding the problem of traditional brake universal wheels easily slipping under heavy loads. This improves the stability of the positioning device during assembly. Furthermore, after assembly, the overall mass of the positioning device is reduced. By folding the pulley assembly downwards and then positioning it through the positioning mechanism, the positioning device can be easily moved via the pulley assembly. [Attached Image Description]

[0021] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 It is a three-dimensional representation in the embodiments of this application. Figure 1 ;

[0023] Figure 2 It is a three-dimensional representation in the embodiments of this application. Figure 2 ;

[0024] Figure 3 yes Figure 1 A partially exploded view;

[0025] Figure 4 yes Figure 3 Enlarged view of point A in the middle;

[0026] Figure 5 yes Figure 2 A partially exploded view;

[0027] Figure 6 yes Figure 5 Enlarged view at point B;

[0028] Figure 7 This is a schematic diagram showing the state of the positioning mechanism being unrestricted in an embodiment of this application;

[0029] Figure 8 This is a schematic diagram of the folding state of the pulley assembly in the embodiments of this application;

[0030] Figure 9 This is a schematic diagram of Embodiment 2 of this application.

Detailed Implementation Methods

[0032] To make the technical problems solved by this application, the technical solutions, and the beneficial effects clearer, this application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of this application and are not intended to limit this application.

[0033] Please see Figures 1 to 9 A universal wheel folding structure for assembling a mesh belt chain positioning device includes a pulley assembly 1, a tube assembly 3 located at the bottom of the positioning device 2 and connected to the pulley assembly 1, and a positioning mechanism 4 for restricting or releasing the folding of the pulley assembly 1 relative to the tube assembly 3. The tube assembly 3 is used to support the pulley assembly 1 so that the pulley assembly 1 is on the ground or to allow the pulley assembly 1 to fold relative to the tube assembly 3 so that the tube assembly 3 is on the ground.

[0034] This application discloses a folding structure for a universal wheel used in assembling a mesh belt chain positioning device. By setting a tubular assembly at the bottom of the positioning device and connecting it with a foldable pulley assembly, and by using a positioning mechanism to restrict or release the folding state of the pulley assembly, the pulley assembly can be folded up when the overall mass of the assembled parts placed on the positioning device is large. The tubular assembly then directly supports the ground, thus avoiding the problem of traditional brake universal wheels easily slipping under heavy loads. This improves the stability of the positioning device during assembly. Furthermore, after assembly, the overall mass of the positioning device is reduced. By folding the pulley assembly downwards and then positioning it through the positioning mechanism, the positioning device can be easily moved via the pulley assembly.

[0035] Furthermore, as a preferred embodiment of this solution and not a limitation, the tube assembly 3 is provided with a connecting groove 31 for the pulley assembly 1 to cooperate with, and a clearance groove 32 is provided on one side of the tube assembly 3 for the pulley assembly 1 to fold to the side and disengage from the connecting groove 31. On the other opposite side of the tube assembly 3, a clearance opening 33 is provided for the pulley assembly 1 to extend out from the connecting groove 31.

[0036] In this embodiment, when the positioning device needs to be moved, the pulley assembly 1 cooperates with the tube assembly 3 through the connecting groove 31, allowing the pulley assembly 1 to land. At this time, the casters can move flexibly on the ground, facilitating the handling and adjustment of the positioning device. When the positioning device reaches the designated position and assembly work is required, the positioning device can be gently lifted, and the pulley assembly slides downward under its own weight. The positioning mechanism automatically releases the restriction, and the pulley assembly 1 can be folded to the side through the clearance groove 32, disengaging from the connecting groove 31. At the same time, its top extends from the clearance opening 33, allowing the tube assembly 3 to land. Since the supporting area of ​​the tube assembly 3 is relatively larger than that of the pulley assembly 1 and the structure is more stable, it effectively prevents the positioning device from sliding due to its large overall mass after the assembly parts are placed on it, ensuring the stability and safety of the assembly process.

[0037] Furthermore, as a preferred embodiment of this solution and not a limitation, the top of the connecting groove 31 is at a higher level than the top of the relief groove 32 and the relief opening 33 by a horizontal height 34, so as to form a limiting portion 35 between the top of the connecting groove 31 and the top of the relief opening 33 to restrict the pulley assembly 1 from folding relative to the tube assembly 3.

[0038] In this embodiment, under normal movement, the pulley assembly 1 engages with the tube assembly 3 via the connecting groove 31, restricting the top of the pulley assembly 1 with the limiting part 35, thereby maintaining stability and preventing the pulley assembly 1 from accidentally tipping over during movement. When it is necessary to fix the positioning device in a certain position for assembly work, the pulley assembly 1 is folded out of the connecting groove 31 by releasing the restriction of the positioning mechanism. It then folds over to the side of the tube assembly 3 via the clearance groove 32 and clearance opening 33, allowing the tube assembly 3 to directly contact the ground and provide more stable support. This avoids the risk of unstable movement or equipment tipping due to accidental tipping of the pulley assembly 1.

[0039] Furthermore, as a preferred embodiment of this solution and not a limitation thereof, the positioning mechanism 4 includes a positioning pin 41 disposed on the pulley assembly 1 and a positioning slot 42 disposed on the tube assembly 3 for the positioning pin 41 to engage.

[0040] In this embodiment, when the pulley assembly 1 needs to be fixed in use, the positioning pin 41 on the pulley assembly is held in place by the positioning slot 42 on the positioning device due to its own weight, forming a stable locking relationship. This prevents the pulley assembly 1 from flipping over when moving or under force, ensuring the stability and safety of the positioning device. This locking mechanism is not only easy to operate, but also, in conjunction with the supporting effect of the limiting part on the top of the pulley assembly, can withstand a sufficiently large load.

[0041] Furthermore, as a preferred embodiment of this solution and not a limitation thereof, when the positioning pin 41 is engaged with the positioning slot 42, the top of the pulley assembly 1 extends into the limiting part 35.

[0042] In this embodiment, the locking of the positioning pin 41 and the positioning latch 42 ensures the stability of the pulley assembly 1 in use, while the limiting part 35 provides additional physical obstruction, providing double protection to prevent the pulley assembly 1 from accidentally tipping over. Furthermore, when the positioning pin and the positioning latch are engaged, the top of the pulley assembly abuts against the limiting part, dispersing the force exerted by the positioning pin and the positioning latch.

[0043] Furthermore, as a preferred embodiment of this solution and not a limitation thereof, the pulley assembly 1 includes a square tube column 11 for extending into the connecting groove 31, and a pulley 12 disposed at the bottom of the square tube column 11; or includes the square tube column 11 for extending into the connecting groove 31, the pulley 12 disposed at the bottom of the square tube column 11, and a connecting rod 13 for connecting adjacent square tube columns 11.

[0044] In this embodiment, the pulley assembly can be configured as a combination of a single square tube column and a pulley, or as a combination of two square tube columns and two pulleys as described in Embodiment 2, which are synchronously linked by a connecting rod. Figure 9 As shown, the cooperation between the square tube column 11 and the connecting groove 31 ensures the accurate positioning and smooth folding of the pulley assembly 1 within the tube assembly 3. The pulley 12 gives the positioning device flexible movement capability, while the presence of the connecting rod 13 enhances the rigidity and stability of the entire pulley assembly 1. Especially under heavy load conditions, it can effectively distribute the load and reduce deformation and wear.

[0045] Furthermore, as a preferred embodiment of this solution and not a limitation, the pulley 12 is a swivel wheel.

[0046] In this embodiment, the caster wheel can rotate freely 360 degrees, giving the positioning device extremely high flexibility and maneuverability during movement. It can easily handle situations whether in confined spaces or when frequent turning is required.

[0047] Furthermore, as a preferred embodiment of this solution and not a limitation thereof, the positioning device 2 includes a support frame 21 and angle steel rails 22 disposed on both sides of the support frame 21 for placing chains. The chains on both sides of the support frame 21 are respectively used to connect the two ends of the mesh plate and the movable side plates located at both ends of the mesh plate.

[0048] Furthermore, as a preferred embodiment of this solution and not a limitation, the square tube column 11 is folded relative to the connecting groove 31 until the bottom horizontal height of the square tube column 11 is higher than the bottom horizontal height of the tube assembly 3, and the bottom of the tube assembly 3 is supported by the ground.

[0049] In this embodiment, by adjusting the folding angle of the square tube column 11, the tube assembly 3 can directly contact the ground and bear the main load under heavy load conditions, while the pulley assembly 1 is lifted and removed from the ground, thereby avoiding the possible slippage or deformation of the pulley under heavy pressure.

[0050] Furthermore, as a preferred embodiment of this solution and not a limitation, the relief groove 32 extends downward through the square tube column 11 at the relief opening 33.

[0051] In this embodiment, the square tube column 11 is allowed to pass smoothly through the clearance groove 32 and clearance opening 33 during the folding process of the pulley assembly 1 without any obstruction or jamming. This not only simplifies the folding operation of the pulley assembly 1, but also ensures the smoothness and reliability of the entire process.

[0052] Furthermore, as a preferred embodiment of this solution and not a limitation thereof, it also includes a limiting mechanism 5 for limiting the sliding distance of the square tube column 11 along the connecting groove 31. The limiting mechanism 5 includes a limiting post 51 disposed on the square tube column 11 and a limiting groove 52 disposed on the positioning device 2 and slidably connected to the limiting post 51.

[0053] In this embodiment, the limiting groove restricts the sliding distance of the limiting post and prevents the square tube post 11 from disengaging downward from the connecting groove 31.

[0054] The working principle of this embodiment is as follows:

[0055] This application discloses a folding structure for a universal wheel used in assembling a mesh belt chain positioning device. By setting a tubular assembly at the bottom of the positioning device and connecting it with a foldable pulley assembly, and by using a positioning mechanism to restrict or release the folding state of the pulley assembly, the pulley assembly can be folded up when the overall mass of the assembled parts placed on the positioning device is large. The tubular assembly then directly supports the ground, thus avoiding the problem of traditional brake universal wheels easily slipping under heavy loads. This improves the stability of the positioning device during assembly. Furthermore, after assembly, the overall mass of the positioning device is reduced. By folding the pulley assembly downwards and then positioning it through the positioning mechanism, the positioning device can be easily moved via the pulley assembly.

[0056] The above are implementation methods provided in conjunction with specific content, and it is not intended that the specific implementation of this application is limited to these descriptions. Any methods or structures that are similar to those of this application, or any technical deductions or substitutions made based on the concept of this application, should be considered within the scope of protection of this application.

Claims

1. A folding structure for a universal wheel used in assembling a mesh belt chain positioning device, characterized in that, It includes a pulley assembly (1), a tube assembly (3) located at the bottom of the positioning device (2) and connected to the pulley assembly (1), and a positioning mechanism (4) for limiting or releasing the folding of the pulley assembly (1) relative to the tube assembly (3). The tube assembly (3) is used to support the pulley assembly (1) so that the pulley assembly (1) is on the ground or to allow the pulley assembly (1) to fold relative to the tube assembly (3) so that the tube assembly (3) is on the ground.

2. The universal wheel folding structure for assembling a mesh belt chain positioning device according to claim 1, characterized in that, The tube assembly (3) has a connecting groove (31) for the pulley assembly (1) to cooperate with. The tube assembly (3) has a clearance groove (32) on one side for the pulley assembly (1) to fold to the side and disengage from the connecting groove (31). The tube assembly (3) has a clearance opening (33) on the other opposite side for the pulley assembly (1) to extend from the connecting groove (31).

3. The universal wheel folding structure for assembling a mesh belt chain positioning device according to claim 2, characterized in that, The top of the connecting groove (31) is at a higher level than the top of the relief groove (32) and the relief opening (33) (34), so as to form a limiting part (35) between the top of the connecting groove (31) and the top of the relief opening (33) to restrict the pulley assembly (1) from folding relative to the tube assembly (3).

4. The universal wheel folding structure for assembling a mesh belt chain positioning device according to claim 3, characterized in that, The positioning mechanism (4) includes a positioning pin (41) on the pulley assembly (1) and a positioning slot (42) on the tube assembly (3) into which the positioning pin (41) is engaged.

5. The universal wheel folding structure for assembling a mesh belt chain positioning device according to claim 4, characterized in that, When the positioning pin (41) is engaged with the positioning slot (42), the top of the pulley assembly (1) extends into the limiting part (35).

6. The universal wheel folding structure for assembling a mesh belt chain positioning device according to claim 2, characterized in that, The pulley assembly (1) includes a square tube column (11) for extending into the connecting groove (31) and a pulley (12) disposed at the bottom of the square tube column (11); or includes the square tube column (11) for extending into the connecting groove (31), the pulley (12) disposed at the bottom of the square tube column (11), and a connecting rod (13) for connecting adjacent square tube columns (11).

7. The universal wheel folding structure for assembling a mesh belt chain positioning device according to claim 6, characterized in that, The pulley (12) is a universal wheel.

8. The universal wheel folding structure for assembling a mesh belt chain positioning device according to claim 1, characterized in that, The positioning device (2) includes a support frame (21) and angle steel rails (22) located on both sides of the support frame (21) for placing chains. The chains on both sides of the support frame (21) are used to connect the two ends of the mesh plate and the movable side plates located at both ends of the mesh plate.

9. A universal wheel folding structure for assembling a mesh belt chain positioning device according to claim 6, characterized in that, After the square tube column (11) is folded relative to the connecting groove (31) until the bottom horizontal height of the square tube column (11) is higher than the bottom horizontal height of the pipe fitting (3), the bottom of the pipe fitting (3) is supported by the ground.

10. A universal wheel folding structure for assembling a mesh belt chain positioning device according to claim 6, characterized in that, It also includes a limiting mechanism (5) for limiting the sliding distance of the square tube column (11) along the connecting groove (31). The limiting mechanism (5) includes a limiting post (51) provided on the square tube column (11) and a limiting groove (52) provided on the positioning device (2) and slidably connected to the limiting post (51).

Images