Turnover heavy universal trundle

Abstract

The utility model discloses a turnover heavy type universal trundle which comprises a turnover assembly, the turnover assembly is rotationally connected in a mounting frame, the turnover assembly comprises a base and a clamping disc, a trundle assembly is mounted on the base, a limiting assembly is arranged on the mounting frame, and the limiting assembly limits the clamping disc to prevent the turnover assembly from rotating freely. The overturning assembly and the trundle assembly are connected to the vehicle body through the mounting frame, meanwhile, the mounting frame provides a space for the overturning assembly to overturn and drives the trundle assembly to be put down or put away, the clamping disc is matched with the limiting assembly, when the clamping disc moves to different states along with the overturning assembly, the clamping disc is clamped and limited through the limiting assembly, and therefore the clamping disc is prevented from being damaged. The turnover device is simple in structure, convenient to operate, capable of being assembled on bottom plates of any vehicle frame, tool and bracket, small in occupied space and capable of greatly reducing the turnover time of products such as workpieces and the like, and therefore the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of universal casters, in particular to a reversible heavy-duty universal caster. Background Art

[0002] Casters include movable casters and fixed casters. Universal casters are so-called movable casters, and their structure allows 360-degree horizontal rotation. Fixed casters do not have a rotating structure and cannot rotate horizontally but only vertically. These two types of casters are generally used in combination. For example, the structure of a trolley is two fixed wheels in the front and two movable universal wheels in the back near the push handle.

[0003] After installation, the heavy-duty industrial casters in the prior art are installed on the lower part of the supporting body through the combined seat. The position of the wheel body installed on the combined seat is fixed and cannot be adjusted. The use is limited. When used for long-distance transportation, it is easy to be bumped, causing damage to the universal wheel, affecting the use effect. Therefore, the caster assembly is required to be able to switch between working state and non-working state.

[0004] Now there is an urgent need for a foldable anti-collision universal wheel to solve the above-mentioned problems. Utility Model Content

[0005] In view of the shortcomings of the prior art, a reversible heavy-duty universal caster is proposed, which solves the problem that the wheel body in the above-mentioned background technology is installed in a fixed position on the combination seat, cannot be adjusted, has limitations in use, and is easily bumped when used for long-distance transportation.

[0006] In order to achieve the above purpose, the utility model proposes the following technologies to achieve it:

[0007] A flippable heavy-duty universal caster comprises a flip assembly, which is rotatably connected in a mounting frame. The flip assembly comprises a base and a clamping plate, a caster assembly is mounted on the base, and a limit assembly is arranged on the mounting frame. The limit assembly limits the clamping plate to prevent the flip assembly from rotating freely.

[0008] Furthermore, a rotating shaft is arranged in the mounting frame, the clamping plate is rotatably connected to the rotating shaft, and a limiting groove matching the limiting assembly is arranged on the clamping plate.

[0009] Furthermore, the limiting assembly includes a guide sleeve fixedly mounted on the mounting frame, a first spring pin shaft being slidably connected inside the guide sleeve, the first spring pin shaft passing through the side wall of the mounting frame and an end portion of which is clamped in the limiting groove.

[0010] Furthermore, the flip assembly also includes a rotating seat rotatably connected to the rotating shaft, the rotating seat is fixedly mounted on the base, and the clamping plate is fixedly connected to the rotating seat and is located between the rotating seat and the mounting frame.

[0011] Furthermore, the caster assembly includes a connecting piece connected to the base, a support shell is rotatably connected to the lower part of the connecting piece through a bearing disk, a locking assembly is provided on the peripheral side of the bearing disk, and the caster is installed in the support shell.

[0012] Furthermore, the locking assembly includes an adjusting sleeve fixedly mounted on one side of the connecting piece, a second spring pin is movably connected in the adjusting sleeve, and a locking groove which can be clamped with the second spring pin is provided on the peripheral side of the bearing plate.

[0013] Furthermore, a pull ring is inserted into one end of the second spring pin away from the bearing disk, and a first limit groove and a second limit groove which can be engaged with the pull ring are formed at one end of the adjustment sleeve away from the bearing disk.

[0014] Furthermore, the first limit card slot and the second limit card slot are arranged to intersect each other, and the depth of the first limit card slot is not equal to the depth of the second limit card slot.

[0015] Furthermore, when the pull ring is clamped in the first limiting clamping groove or the second limiting clamping groove, the end of the second spring pin shaft is inserted into the locking groove to lock the rotation direction of the caster.

[0016] Furthermore, it also includes an anti-collision component, which includes a bending plate fixedly arranged on the rotating seat, a rubber stopper is installed on the outer surface of the bending plate away from the rotating seat, and reinforcing rib plates are respectively connected to the upper and lower sides of the bending plate.

[0017] Compared with the prior art, the comprehensive effects brought by the utility model include:

[0018] (1) The present application sets a mounting frame to connect the flip assembly and the caster assembly to the vehicle body. At the same time, the mounting frame provides space for the flip assembly to flip and drives the caster assembly to be lowered or folded. The clamping plate cooperates with the limit assembly. When the clamping plate follows the flip assembly to move to different states, the limit assembly clamps and limits the clamping plate, thereby locking the state after flipping. The present application has a simple structure and is easy to operate. It can be assembled on the bottom plate of any frame, tooling, or bracket, and occupies less space, which greatly reduces the turnover time of workpieces and other products, thereby improving production efficiency.

[0019] (2) A pull ring is provided to facilitate pulling and adjusting the position of the second spring pin shaft, and two sets of limit slots are provided to engage the pull ring, corresponding to the two states of whether the second spring pin shaft is engaged with the locking slot, thereby axially limiting the second spring pin shaft in the two states to achieve locking or releasing.

[0020] (3) A bending plate and a rubber stopper are provided. When the caster assembly is located above the mounting frame, that is, in the retracted state, the bending plate is located on the side of the rotating seat away from the mounting frame, thereby protecting the swivel caster when the swivel caster is in the retracted state to avoid collision damage to the swivel caster. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of the caster assembly in the embodiment of the utility model when it is in the lowered state;

[0022] Figure 2 for Figure 1 Schematic diagram of the local structure at A in the middle;

[0023] Figure 3 This is a schematic diagram of the structure of the flip assembly of the embodiment of the utility model;

[0024] Figure 4 This is a schematic diagram of the cross-sectional structure of the locking assembly implemented in the utility model;

[0025] Figure 5 This is a schematic structural diagram of the caster assembly in a folded state according to an embodiment of the utility model.

[0026] Legend: 1. Mounting frame; 2. Base; 3. Rotating shaft; 4. Snap-on plate; 5. Limiting groove; 6. Guide sleeve; 7. First spring pin; 8. Rotating seat; 9. Connecting plate; 10. Bearing plate; 11. Support shell; 12. Caster; 13. Adjusting sleeve; 14. Second spring pin; 15. Pull ring; 16. First limiting slot; 17. Second limiting slot; 18. Bending plate; 19. Rubber stopper; 20. Reinforcing rib plate; 21. Locking groove. DETAILED DESCRIPTION

[0027] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the protection scope of the utility model.

[0028] In this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. The orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "top", etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation to the utility model.

[0029] like Figures 1 to 5 As shown, a flipable heavy-duty universal caster includes a flip assembly, which is rotatably connected in a mounting frame 1. The flip assembly includes a base 2 and a clamping plate 4. The base 2 is equipped with a caster assembly. A limiting assembly is provided on the mounting frame 1. The limiting assembly limits the clamping plate 4 to prevent the flip assembly from rotating freely.

[0030] A mounting frame 1 is provided to connect the flip assembly and the caster assembly to the vehicle body. At the same time, the mounting frame 1 provides space for the flip assembly to flip and drives the caster assembly to be lowered or folded. The clamping plate 4 cooperates with the limit assembly. When the clamping plate 4 moves to different states with the flip assembly, the limit assembly clamps and limits the clamping plate 4, thereby locking the flipped state to prevent the flip assembly from driving the caster assembly to rotate freely in the mounting frame 1, affecting use or causing damage. The system is convenient and safe and can save space.

[0031] The present invention has a simple structure, convenient operation, mature production technology, and is suitable for mass production. The present invention can be assembled on the bottom plate of any frame, tooling, or bracket, taking up less space, greatly reducing the turnover time of workpieces and other products, thereby improving production efficiency.

[0032] Specifically, the mounting frame 1 in the present application is composed of three flat plates connected vertically in sequence to form a shell with a U-shaped cross-section. The flip assembly is rotatably connected between two relatively arranged flat plates, and the middle flat plate is connected to the vehicle body; the flip assembly and the mounting frame 1 are made of 45# steel, and the mounting frame 1 provides a mounting surface for the caster assembly. With the cooperation of the flip assembly and the limit assembly, the caster assembly can be locked after flipping.

[0033] The present application is for a heavy-duty, reversible universal caster, which can be used in heavy-duty transport equipment such as aerospace, ground equipment, and weapon transport, storage and transportation vehicles, etc. It can meet the requirements of stable support and flexible transfer of equipment during transportation and storage.

[0034] Specifically, the heavy-duty reversible universal caster in the present application can realize 360° free rotation by lowering the caster assembly and locking the relevant parts when rolling is required. When not needed, the caster assembly can be folded and locked, which is convenient and safe while saving space.

[0035] In the reversible heavy-duty universal caster of this embodiment, a rotating shaft 3 is arranged in the mounting frame 1, the clamping plate 4 is rotatably connected to the rotating shaft 3, and a limiting groove 5 matching the limiting assembly is arranged on the clamping plate 4.

[0036] Specifically, a rotating shaft 3 is provided to provide support for the rotation of the flip assembly. When the clamping plate 4 rotates to different positions around the rotating shaft 3, the limit assembly is clamped with the limit groove 5 to limit the rotation of the clamping plate 4 to limit the position of the flip assembly and the caster assembly, thereby locking the folded state or the lowered state.

[0037] In the flippable heavy-duty universal caster of this embodiment, the flip assembly also includes a rotating seat 8 rotatably connected to the rotating shaft 3, the rotating seat 8 is fixedly mounted on the base 2, and the clamping plate 4 is fixedly connected to the rotating seat 8 and is located between the rotating seat 8 and the mounting frame 1.

[0038] A rotating seat 8 is provided to connect the base 2 and the rotating shaft 3, and the rotation of the rotating seat 8 drives the caster assembly to rotate. The clamping plate 4 is located between the rotating seat 8 and the mounting frame 1, so that the limiting component on the mounting frame 1 limits the clamping plate 4 and indirectly limits the rotating seat 8.

[0039] Preferably, two limit grooves 5 are provided to realize the clamping and locking of the limit assembly in two states; the two limit grooves 5 are arranged opposite to each other on the clamping plate 4, and the extension direction of the two limit grooves 5 is perpendicular to the base 2. When the base 2 is in the lowered state, the base 2 is located below the mounting frame 1, and the limit assembly clamps the limit groove 5 close to the base 2; when the base 2 is in the folded state, the base 2 is located above the mounting frame 1, and the limit assembly clamps the limit groove away from the base 2.

[0040] In the flippable heavy-duty universal caster of this embodiment, the limiting assembly includes a guide sleeve 6 fixedly mounted on the mounting frame 1, and a first spring pin 7 is slidably connected inside the guide sleeve 6. The first spring pin 7 passes through the side wall of the mounting frame 1 and the end is clamped with the limiting groove 5.

[0041] Specifically, a pulling block is provided at the outer end of the first spring pin shaft 7 to facilitate pulling the first spring pin shaft 7 to slide and retract in the guide sleeve 6. One end of the first spring pin shaft 7 located in the mounting frame 1 protrudes from the inner wall of the mounting frame 1, so that it can be inserted into the limiting groove 5 to achieve limiting.

[0042] Preferably, the guide sleeve 6 is arranged below the rotating shaft 3, and an extension portion is provided on the side of the clamping plate 4 close to the base 2, and the shape of the extension portion matches the rotating seat 8, so that the limiting groove 5 close to the base 2 increases the strength. When the caster assembly is lowered, the first spring pin shaft 7 is clamped with the limiting groove 5 with greater strength to ensure the stability of the limiting locking, thereby improving the stability of the operation of the caster assembly.

[0043] In the reversible heavy-duty universal caster of this embodiment, the caster assembly includes a connecting plate 9 connected to the base 2, and a support shell 11 is rotatably connected to the lower part of the connecting plate 9 through a bearing disk 10. A locking assembly is provided on the peripheral side of the bearing disk 10, and a caster 12 is installed in the support shell 11.

[0044] A bearing plate 10 is provided to connect the support shell 11, so as to install the caster 12, so that the support shell 11 drives the caster 12 to rotate 360 ​​degrees on the connecting plate 9; a locking assembly is provided on the peripheral side of the bearing plate 10, and the bearing plate 10 is locked by the locking assembly, so as to limit the rotation of the support shell 11 in the horizontal direction and fix the forward movement direction of the caster 12.

[0045] Specifically, the caster assembly includes a caster 12, a wheel axle and a support shell 11. The caster 12 is a standard wheel with a bearing of φ125 mm, made of nylon; the wheel axle and the support shell 11 are made of stainless steel; the support shell 11 and the bearing plate 10 are welded together. The support shell 11 is also provided with a caster locking structure for limiting the position of the caster 12. The specific structure thereof is referred to the prior art and will not be described in detail here.

[0046] In the reversible heavy-duty universal caster of this embodiment, the locking assembly includes an adjustment sleeve 13 fixedly mounted on one side of the connecting plate 9, a second spring pin 14 is movably connected inside the adjustment sleeve 13, and a locking groove 21 that can be clamped with the second spring pin 14 is provided on the circumferential side of the bearing plate 10.

[0047] Specifically, the second spring pin 14 is pulled to extend and retract in the adjusting sleeve 13 to control whether the second spring pin 14 is engaged with the locking groove 21 on the bearing plate 10, thereby fixing or releasing the movement direction of the caster 12 and improving the practicality of the universal caster.

[0048] Preferably, four locking grooves 21 are symmetrically arranged along the center of the bearing plate 10 , and the second spring pin 14 is engaged with different locking grooves 21 of the bearing plate 10 to achieve adjustment of different forward directions of the caster 12 .

[0049] In the reversible heavy-duty universal caster of this embodiment, a pull ring 15 is inserted into the end of the second spring pin 14 away from the bearing disk 10, and a first limit groove 16 and a second limit groove 17 that can be engaged with the pull ring 15 are formed at the end of the adjustment sleeve 13 away from the bearing disk 10.

[0050] Specifically, a pull ring 15 is provided to facilitate pulling and adjusting the position of the second spring pin 14, and two sets of limit slots are provided to clamp the pull ring 15, corresponding to the two states of whether the second spring pin 14 is clamped with the locking slot 21, thereby axially limiting the second spring pin 14 in the two states to achieve locking or release.

[0051] Pulling the pull ring 15 can separate the second spring pin 14 from the bearing disk 10, so as to realize the rotation of the bearing disk 10. A limiting ring is provided at the end of the second spring pin 14, so as to ensure that the spring does not rebound. When locking is required, the pull ring 15 at the end is pulled so that the second spring pin 14 clamps the bearing disk 10 with the spring force, so as to realize the limiting of the bearing disk 10.

[0052] In the reversible heavy-duty universal caster of this embodiment, when the pull ring 15 is engaged in the first limiting slot 16 or the second limiting slot 17 , the end of the second spring pin 14 is inserted into the locking slot 21 to lock the rotation direction of the caster 12 .

[0053] Preferably, the second spring pin 14 can rotate in the adjusting sleeve 13, and the spring outside the second spring pin 14 is movably connected in the adjusting sleeve 13, so that the pull ring 15 can drive the second spring pin 14 to extend and retract while rotating to engage with different limit slots for locking or releasing.

[0054] In the reversible heavy-duty universal caster of this embodiment, the first limit slot 16 and the second limit slot 17 are arranged to intersect each other, and the depth of the first limit slot 16 is not equal to the depth of the second limit slot 17 .

[0055] Specifically, in the present embodiment, the depth of the first limit slot 16 is greater than the depth of the second limit slot 17. When the rotation direction of the caster 12 needs to be locked, the pull ring 15 is pulled to align the second spring pin 14 with the locking slot 21, and the pull ring 15 is rotated to engage in the first limit slot 16, and the second spring pin 14 is inserted into the locking slot 21 to achieve locking; when locking is not required, the pull ring 15 is pulled and rotated to engage in the second limit slot 17.

[0056] Preferably, the first limit slot 16 and the second limit slot 17 are arranged perpendicular to each other, so that when the universal caster is not in use, it is convenient to determine whether it is in a locked state according to the rotation state of the pull ring 15.

[0057] The flip heavy-duty universal caster of this embodiment also includes an anti-collision component, which includes a bending plate 18 fixedly arranged on the rotating seat 8, and a rubber stopper 19 is installed on the outer surface of the bending plate 18 away from the rotating seat 8. The bending plate 18 is respectively connected to reinforcing ribs 20 on the upper and lower sides.

[0058] Specifically, the anti-collision component realizes the anti-error design and guide design of the universal caster. The overall material is 45# steel. The bending plate 18 includes a horizontal plate and vertical plates that are perpendicular to the horizontal plate and located at both ends of the horizontal plate. The two vertical plates are on the upper and lower sides of the horizontal plate. Reinforcing rib plates 20 are respectively arranged between the two vertical plates and the horizontal plate to increase the strength of the bending plate 18 and improve the anti-collision ability.

[0059] Preferably, when the caster assembly is located above the mounting frame 1, that is, in the folded state, the bending plate 18 is located on the side of the rotating seat 8 away from the mounting frame 1, thereby protecting the swivel caster when the swivel caster is in the folded state to avoid collision and damage to the swivel caster; the rubber stopper 19 on the outside of the bending plate 18 cushions the impact, reduces the impact force, and realizes the protection function.

[0060] When using the heavy-duty universal caster in the present application, pull the first spring pin 7 and lift the caster assembly to rotate the caster assembly 180 degrees along the rotating shaft 3. When the caster assembly is rotated to the right position, the first spring pin 7 automatically rebounds and locks. Adjust the caster 12 to be level with the vehicle body, pull the pull ring 15, so that the second spring pin 14 is disengaged from the limit and automatically rebounds to the locking groove 21 on the bearing disk 10 under the action of the spring, completing the locking in the retracted state. At the same time, due to the continuous action of the two spring pins, the caster will not fall off in the locked state, and the thrust can also be adjusted by adjusting the compression of the spring.

[0061] When the caster 12 needs to be converted from the folded state to the working state, pull the pull ring 15 to disengage the second spring pin 14 from the bearing disk 10, and then pull the first spring pin 7 to leave the clamping disk 4. The caster assembly rotates 180 degrees under the action of gravity, and the first spring pin 7 is released to lock the clamping disk 4 and the caster assembly in the working state through the spring force.

[0062] The materials used for the structural components of the utility model are all commonly used materials, and are convenient to purchase and process.

[0063] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "rotation" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to the specific circumstances.

[0064] Although the embodiments of the present invention have been shown and described in detail, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A reversible heavy-duty universal caster, characterized in that: It includes a flip assembly, which is rotatably connected in a mounting frame. The flip assembly includes a base and a clamping plate. A caster assembly is installed on the base. A limiting assembly is arranged on the mounting frame. The limiting assembly limits the clamping plate to prevent the flip assembly from rotating freely.

2. The reversible heavy-duty universal caster according to claim 1, characterized in that: A rotating shaft is arranged in the mounting frame, the clamping plate is rotatably connected to the rotating shaft, and a limiting groove matching the limiting assembly is arranged on the clamping plate.

3. The reversible heavy-duty universal caster according to claim 2, characterized in that: The limiting assembly comprises a guide sleeve fixedly mounted on the mounting frame, a first spring pin shaft is slidably connected in the guide sleeve, the first spring pin shaft penetrates the side wall of the mounting frame and an end portion is clamped in the limiting groove.

4. The reversible heavy-duty universal caster according to claim 2, characterized in that: The flip assembly also includes a rotating seat rotatably connected to the rotating shaft, the rotating seat is fixedly installed on the base, and the clamping plate is fixedly connected to the rotating seat and is located between the rotating seat and the mounting frame.

5. The reversible heavy-duty universal caster according to claim 1, characterized in that: The caster assembly comprises a connecting piece connected to the base, a support shell is rotatably connected to the lower part of the connecting piece through a bearing disk, a locking assembly is arranged on the peripheral side of the bearing disk, and the caster is installed in the support shell.

6. The reversible heavy-duty universal caster according to claim 5, characterized in that: The locking assembly comprises an adjusting sleeve fixedly mounted on one side of the connecting piece, a second spring pin being movably connected in the adjusting sleeve, and a locking groove for clamping the second spring pin being arranged on the peripheral side of the bearing disc.

7. The reversible heavy-duty universal caster according to claim 6, characterized in that: A pull ring is inserted into one end of the second spring pin away from the bearing disk, and a first limit groove and a second limit groove which can be engaged with the pull ring are formed at one end of the adjustment sleeve away from the bearing disk.

8. The reversible heavy-duty universal caster according to claim 7, characterized in that: The first limit card slot and the second limit card slot are arranged to intersect each other, and the depth of the first limit card slot is not equal to the depth of the second limit card slot.

9. The reversible heavy-duty universal caster according to claim 7, characterized in that: When the pull ring is clamped in the first limiting clamping groove or the second limiting clamping groove, the end of the second spring pin shaft is inserted into the locking groove to lock the rotation direction of the caster.

10. The reversible heavy-duty universal caster according to claim 4, characterized in that: It also includes an anti-collision component, which includes a bending plate fixedly arranged on the rotating seat, a rubber stopper is installed on the outer surface of the bending plate away from the rotating seat, and reinforcing rib plates are respectively connected to the upper and lower sides of the bending plate.

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