Novel folding mechanism trundle
The new folding mechanism caster design solves the problems of traditional casters taking up too much space and having insufficient load-bearing capacity, achieving convenient storage and stable support, and improving stability and load-bearing capacity.
Patent Information
- Application Number
- CN202520799387.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-25
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-04-25
AI Technical Summary
Traditional casters take up a lot of space when not in use and have insufficient load-bearing capacity, affecting portability and stability, and are prone to damage.
A novel folding mechanism caster is designed, which achieves folding and support of the caster through a combination structure of a rotating block, a bidirectional threaded rod, and a threaded block, thereby enhancing its load-bearing capacity.
It achieves convenient storage and stable support for the casters, improves load-bearing capacity, and avoids damage and instability caused by unstable folding.
Smart Images
Figure CN223919036U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a caster technology field, concretely is a new folding mechanism caster. BACKGROUND
[0002] When the conventional caster is not used, the wheel is usually fixed to stretch outward, which occupies more space for some devices or articles that need to be stored or have limited storage space. For some articles that need to be moved frequently and have high portability requirements, such as luggage, folding bicycles, etc., the conventional caster cannot meet the requirements well. During carrying, the protruding caster may cause inconvenience and even damage, so a new folding mechanism caster needs to be designed to facilitate the folding and storage of the caster.
[0003] In order to realize the folding function, the foldable caster folding mechanism is not stable enough, which will limit its carrying capacity to some extent. Compared with ordinary casters, foldable casters are usually difficult to bear excessive weight. If the carrying capacity is exceeded, not only will it cause damage to the caster itself and shorten its service life, but also it may affect the stability and safety of the carried object, even cause the folding mechanism to fail and cannot be used normally. SUMMARY
[0004] The utility model aims at providing a new folding mechanism caster to solve the problem of insufficient carrying capacity of the folding mechanism caster in the background art.
[0005] To achieve the above purpose, the utility model provides the following technical scheme: a new folding mechanism caster, comprising a storage bin, a rotating block is rotatably installed inside the storage bin, a caster body is installed at the bottom end of the rotating block, installation box bodies are installed on both sides of the top of the rotating block, sliding blocks are arranged inside the installation box bodies, support rods are installed at the top of the sliding blocks, support plates are installed at the top of the support rods, and a push rod is arranged to push the support plate against the inner wall of the storage bin.
[0006] A sliding groove is formed in the inside of the top of the rotating block, a bidirectional threaded rod is rotatably installed on one side of the inside of the sliding groove, threaded blocks are arranged on the two parts of the outer wall of the bidirectional threaded rod in opposite directions, push rods are hingedly connected to the top of the threaded blocks, a square slide rod is installed at one end of the bidirectional threaded rod, a limiting plate is installed at the end of the square slide rod away from the bidirectional threaded rod, a handle is sleeved on the outer wall of the square slide rod, a plurality of insertion rods are installed at the end of the handle close to the rotating block, a fixed spring is sleeved between the limiting plate and the handle, and a plurality of insertion holes are formed in the inside of the storage bin close to the insertion rods.
[0007] Preferably, the top of the support rod passes through the installation box body, and the top of the support rod extends above the installation box body.
[0008] Preferably, one end of the bidirectional threaded rod successively passes through the rotating block and the storage bin, and the one end of the bidirectional threaded rod extends to one side of the storage bin.
[0009] Preferably, the outer walls of the bidirectional threaded rod are not in contact with the rotating block, the rotating shaft of the rotating block and the storage bin.
[0010] Preferably, the insertion hole and the insertion rod are matched with each other, and the fixed spring is fixedly installed between the limiting plate and the handle.
[0011] Preferably, the top end of the push rod extends to the bottom of the support plate, and the push rod is hingedly connected to the bottom end of the support plate.
[0012] Compared with the prior art, the utility model discloses the following beneficial effects: pulling the handle, making the handle close to the direction of the limiting plate, and making the fixed spring compress, driving the insertion rod through the handle, making the insertion rod draw out from the inside of the insertion hole, then rotating the handle, making the handle drive the square slide rod and the bidirectional threaded rod to rotate, adjusting the rotating direction of the bidirectional threaded rod, making the threaded block move in the direction of mutual approach on the outer wall of the bidirectional threaded rod, driving the push rod through the threaded block, making the push rod drive the support plate, making the support plate abut with the top end in the inside of the storage bin, and the structure further supports the caster main body through the support plate, and the load-carrying capacity of the caster main body is improved. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;
[0014] Figure 2 It is the three-dimensional structure schematic diagram of the rotating block and the caster main body of the utility model;
[0015] Figure 3 It is the front view structure schematic diagram of the rotating block and the caster main body of the utility model;
[0016] Figure 4 It is the side view structure schematic diagram of the rotating block and the caster main body of the utility model;
[0017] Figure 5 It is the top view structure schematic diagram of the rotating block and the caster main body of the utility model.
[0018] In the drawing: 1, storage bin; 2, caster main body; 3, handle; 4, square slide rod; 5, limiting plate; 6, fixed spring; 7, insertion rod; 8, insertion hole; 9, support plate; 10, installation box body; 11, rotating block; 12, threaded block; 13, push rod; 14, support rod; 15, sliding block; 16, sliding slot; 17, bidirectional threaded rod. DETAILED DESCRIPTION
[0019] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0020] Embodiment 1: please refer to Figures 1-5 A new folding mechanism caster, including storage bin 1, the inside of storage bin 1 is rotatably installed with rotating block 11, and the bottom end of rotating block 11 is installed with caster main body 2, the two sides of the top of rotating block 11 are both installed with installation box body 10, and the inside of installation box body 10 is provided with sliding block 15, the top of sliding block 15 is installed with support rod 14, and the top of support rod 14 is installed with support plate 9, further comprising push rod 13 for pushing support plate 9 and the inner wall of storage bin 1 to abut;
[0021] The inside of the top of rotating block 11 is provided with sliding groove 16, and the inside of sliding groove 16 is rotatably installed with bidirectional threaded rod 17, the outer wall of bidirectional threaded rod 17 is provided with threaded block 12 in two parts in opposite screw threads, and the top of threaded block 12 is hingedly connected with push rod 13, one end of bidirectional threaded rod 17 is installed with square slide rod 4, and the end of square slide rod 4 away from bidirectional threaded rod 17 is installed with limiting plate 5, the outer wall of square slide rod 4 is sleeved with handle 3, and the end of handle 3 close to rotating block 11 is installed with multiple insertion rods 7, limiting plate 5 and handle 3 are sleeved with fixed spring 6, and the inside of the side of storage bin 1 close to insertion rod 7 is provided with multiple insertion holes 8;
[0022] The top of support rod 14 passes through installation box body 10, and the top of support rod 14 extends above installation box body 10;
[0023] One end of bidirectional threaded rod 17 passes through rotating block 11 and storage bin 1 in sequence, and one end of bidirectional threaded rod 17 extends to one side of storage bin 1;
[0024] The outer wall of bidirectional threaded rod 17 is not in contact with rotating block 11, the rotating shaft of rotating block 11 and storage bin 1;
[0025] Insertion hole 8 and insertion rod 7 are matched with each other, and fixed spring 6 is fixedly installed between limiting plate 5 and handle 3;
[0026] The top of push rod 13 extends to the bottom of support plate 9, and push rod 13 is hingedly connected to the bottom end of support plate 9;
[0027] Specifically, as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, when using the mechanism, the handle 3 is pulled to make the handle 3 close to the limiting plate 5, and the fixed spring 6 is compressed, the insertion rod 7 is driven by the handle 3 to make the insertion rod 7 withdrawn from the inside of the insertion hole 8, then the caster body 2 and the rotating block 11 can be rotated by ninety degrees and stored in the inside of the storage bin 1, then the handle 3 is rotated by the staff to drive the square sliding rod 4 and the bidirectional threaded rod 17 to rotate, the threaded block 12 is moved on the outer wall of the bidirectional threaded rod 17 in the direction of approaching each other by adjusting the rotating direction of the bidirectional threaded rod 17, the push rod 13 is pushed by the threaded block 12 to push the supporting plate 9 to abut against the inner wall of the storage bin 1.
[0028] The working principle is as follows: the handle 3 is pulled by the staff to make the handle 3 close to the limiting plate 5, and the fixed spring 6 is compressed, the insertion rod 7 is driven by the handle 3 to make the insertion rod 7 withdrawn from the inside of the insertion hole 8, then the caster body 2 and the rotating block 11 can be rotated by ninety degrees and stored in the inside of the storage bin 1, then the handle 3 is rotated by the staff to drive the square sliding rod 4 and the bidirectional threaded rod 17 to rotate, since the threaded block 12 is respectively located at two portions of the bidirectional threaded rod 17 in the reverse direction of the thread, in the rotating process of the bidirectional threaded rod 17, the threaded block 12 can move on the outer wall of the bidirectional threaded rod 17 along the thread, and the moving direction is opposite, the threaded block 12 is moved on the outer wall of the bidirectional threaded rod 17 in the direction of approaching each other by adjusting the rotating direction of the bidirectional threaded rod 17, the push rod 13 is pushed by the threaded block 12 to push the supporting plate 9 to abut against the inner wall of the storage bin 1, at this time, the handle 3 is released, the insertion rod 7 is pushed to reinsert into the inside of the insertion hole 8 under the reaction force of the fixed spring 6, so that the caster body 2 is fixed, and the folding and storage are completed.
[0029] It is apparent for those skilled in the art that the present application is not limited to the details of the foregoing exemplary embodiments, and the present application can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the foregoing embodiments should be regarded as exemplary rather than limiting, and the scope of the present application is defined by the appended claims rather than the foregoing description, and all changes falling within the meaning and range of equivalency of the claims are intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims to the figures in which the reference signs are used.
Claims
1. A novel folding mechanism caster, comprising a storage compartment (1), wherein a rotating block (11) is rotatably mounted inside the storage compartment (1), and a caster body (2) is mounted at the bottom end of the rotating block (11), and mounting boxes (10) are mounted on both sides of the top of the rotating block (11), and sliders (15) are provided inside the mounting boxes (10), and support rods (14) are mounted at the top ends of the sliders (15), and support plates (9) are mounted at the top ends of the support rods (14), characterized in that: Also include push the support plate (9) and the push rod (13) of the receiving bin (1) inner wall abutment; The inner side of the top end of the rotating block (11) is provided with a sliding groove (16), and a bidirectional threaded rod (17) is rotatably installed on one side of the sliding groove (16). The outer wall of the bidirectional threaded rod (17) is provided with a threaded block (12) at two opposite positions. The top end of the threaded block (12) is hinged with a push rod (13). One end of the bidirectional threaded rod (17) is provided with a square slide rod (4), and the other end of the square slide rod (4) is provided with a limiting plate (5). The outer wall of the square slide rod (4) is provided with a rotating handle (3), and the end of the rotating handle (3) close to the rotating block (11) is provided with a plurality of insertion rods (7). The limiting plate (5) and the rotating handle (3) are provided with a fixed spring (6). The inner side of the receiving bin (1) close to the insertion rod (7) is provided with a plurality of insertion holes (8).
2. The new folding mechanism caster wheel according to claim 1, wherein: The top end of the support rod (14) passes through the mounting box body (10), and the top end of the support rod (14) extends above the mounting box body (10).
3. The new folding mechanism caster wheel of claim 1, wherein: One end of the bidirectional threaded rod (17) passes through the rotating block (11) and the receiving bin (1) in sequence, and one end of the bidirectional threaded rod (17) extends to one side of the receiving bin (1).
4. The new folding mechanism caster wheel of claim 1, wherein: The outer wall of the bidirectional threaded rod (17) is not in contact with the rotating block (11), the rotating shaft of the rotating block (11) and the receiving bin (1).
5. The new folding mechanism caster wheel of claim 1, wherein: The insertion hole (8) and the insertion rod (7) are matched with each other, and the fixed spring (6) is fixedly installed between the limiting plate (5) and the rotating handle (3).
6. The new folding mechanism caster wheel of claim 1, wherein: The top end of the push rod (13) extends to the bottom of the support plate (9), and the push rod (13) is hinged to the bottom end of the support plate (9).