Adjustable and detachable trundle device
By designing an adjustable and disassembled caster device, the interlocking and disassembly of the first connecting module and the second connecting module are solved, and the problem of cumbersome installation and operation of the existing caster device is realized quickly disassembly and assembly and simplified operation process.
Patent Information
- Application Number
- CN202422282680.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-19
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-09-19
AI Technical Summary
The existing caster device is cumbersome during installation and requires additional auxiliary tools, resulting in increased operating costs.
An adjustable and disassembled caster device is designed, and the caster is simply disassembled, assembled and adjusted by connecting and disassembly of the first connecting module and the second connecting module.
It realizes rapid disassembly and assembly of casters, simplifies the operation process, reduces operating costs, and facilitates replacement and maintenance of caster support frames and caster body.
Smart Images
Figure CN222946467U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of caster devices, and more specifically, to an adjustable and detachable caster device. Background Art
[0002] Casters are rotating wheels installed at the bottom of equipment or furniture to enable them to move freely on the ground. They are widely used in medical equipment, industrial equipment, transportation tools and daily furniture. Casters improve the user experience by reducing the difficulty of handling, improving work efficiency, reducing labor intensity and protecting the ground.
[0003] Existing casters usually consist of a wheel frame, an axle, a wheel and a brake device, wherein the wheel frame is fixed to the bottom of the equipment, the axle connects the wheel and the wheel frame, allowing the wheel to rotate freely, and the wheel is often made of rubber or polyurethane materials with a variety of hardness and sizes to choose from. The brake device is used to fix the caster to prevent the equipment from moving. The main problems facing the current technology are insufficient load-bearing capacity, poor ground protection and inflexible steering. To solve these problems, high-strength materials can be used to make the wheel frame and axle to improve the load-bearing capacity, polyurethane or rubber materials can be selected to make the wheels to increase their elasticity and wear resistance and reduce damage to the ground, and a steering mechanism with bearings can be designed to reduce rotational resistance and improve steering flexibility. Through these improvements, the performance of the caster will be greatly improved and can better meet the needs of various usage scenarios.
[0004] However, the existing casters still have certain problems during use. During the installation process, the existing device generally uses a threaded screw to tighten and then install and reinforce. However, the operation of the device is relatively cumbersome and requires the use of additional auxiliary props such as an electric drill or a wrench, which increases the operating cost. Therefore, in view of the above problems, an adjustable and detachable caster device is specially proposed. Utility Model Content
[0005] In order to overcome the above defects of the prior art, the utility model provides an adjustable and detachable caster device, which can realize the disassembly and adjustment of the caster through simple operation. To achieve the above purpose, the utility model provides the following technical solutions:
[0006] An adjustable and detachable caster device includes a caster body, a caster support frame and a connecting assembly; the caster body is installed on the caster support frame; the connecting assembly includes a first connecting module and a second connecting module, the first connecting module is fixedly installed on the top of the caster support frame, and the second connecting module can be interlocked or separated with the first connecting module.
[0007] Specifically, the position of the caster body relative to the caster support frame is the lower side; the first connection module includes a connection plate, and the connection plate is horizontally connected to the top of the caster support frame; two first protrusions that are spaced and symmetrically arranged are fixedly installed on the connection plate, and the gap between the two first protrusions forms a first slide groove; the connection plate is also fixedly connected with a second protrusion, and the second protrusion is placed in the first slide groove and is parallel to the first protrusion; the cross-sectional shape of the second protrusion is non-square, non-rectangular, or non-trapezoidal with narrow top and wide bottom;
[0008] The second connection module includes a mounting plate, a third protrusion is fixedly mounted on the bottom of the mounting plate, the third protrusion is in an inverted "U" shape, a second slide groove matching the shape of the second protrusion is opened at the bottom, and the width of the third protrusion is not greater than the width of the first slide groove;
[0009] The third protrusion can slide into the first sliding groove, and the second protrusion can slide into the second sliding groove synchronously, so as to realize the mutual buckling of the first connecting module and the second connecting module.
[0010] Preferably, a horizontally arranged guide rod is fixed on the outer side wall of at least one of the first protrusions; the guide rod comprises a rod body and a rod head with a diameter larger than that of the rod body formed at one end away from the first protrusion; an auxiliary block is also arranged on the outer side of the first protrusion, the auxiliary block is arranged horizontally and one end of the auxiliary block can telescopically penetrate the first protrusion; a limiting block is also fixedly connected to the outer side wall of the auxiliary block, the limiting block can be movably sleeved on the rod body of the guide rod; and a spring is also sleeved on the rod body of the guide rod, the spring is connected between the rod head of the guide rod and the limiting block;
[0011] The third protrusion is provided with a limiting groove on at least one of the two opposite side walls of the first sliding groove, and one end of the auxiliary block passes through the first protrusion and can be elastically inserted into the limiting groove.
[0012] Preferably, the cross-section of the second protrusion is wide at the top and narrow at the bottom.
[0013] More preferably, the cross-sectional shape of the second protrusion is a sphere with a larger transverse diameter in the upper section and a square with a smaller transverse diameter in the lower section; and the shape of the second slide groove matches the second protrusion.
[0014] Preferably, the upper end surface of the second protrusion is also covered with a buffer block matching its shape; when the second protrusion slides into the second sliding groove, the buffer block is placed between the two to play an anti-vibration and buffering role.
[0015] Preferably, a surface of the auxiliary block on a side away from the first protrusion is further provided with a recessed or vertically penetrating hand-grip groove.
[0016] The technical effects and advantages of the utility model are as follows: when in use, the second connecting module can be first installed on the bottom of the cart, and then the caster support frame with the first connecting module and the caster body are integrally buckled onto the second connecting module. The structure is simple and the disassembly and assembly are easy. The caster support frame and the caster body can be disassembled as a whole, which is convenient for replacement and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the overall three-dimensional structural state of this embodiment.
[0018] Figure 2 FIG. 4 is a schematic diagram of the overall three-dimensional structure of this embodiment from another viewing angle.
[0019] Figure 3 For this embodiment Figure 2 A magnified view of the structure at A.
[0020] Figure 4 It is a schematic diagram of the local structural state of this embodiment.
[0021] Figure 5 Schematic diagram of the structural state of the second connection module of this embodiment.
[0022] Figure markings: 1-castor body; 2-castor support frame; 3-first connecting module; 31-connecting plate; 32-first protrusion; 33-first slide groove; 34-second protrusion; 35-guide rod; 36-spring; 37-limiting block; 38-auxiliary block; 39-hand grip groove; 4-second connecting module; 41 mounting plate; 42-third protrusion; 43-second slide groove; 44 limiting groove; 45-buffer pad. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings in the embodiments of the utility model 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 the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0024] Refer to the instruction manual Figure 1-5 , an adjustable and detachable caster device, comprising a caster body 1, a caster support frame 2 and a connecting assembly. The position of the caster body 1 relative to the caster support frame 2 is the lower side, and the lower side relative to another direction is the upper side.
[0025] The caster body 1 is mounted on the bottom end of the caster support frame 2. The connecting assembly includes a first connecting module 3 and a second connecting module 4. The first connecting module 3 is fixedly mounted on the top end of the caster support frame 2, and the second connecting module 4 can be mutually buckled or separated with the first connecting module 3.
[0026] like Figure 2-5 The first connection module 3 includes a connection plate 31, which is horizontally connected to the top of the caster support frame 2. Two first protrusions 32 are fixedly installed on the upper surface of the connection plate 31 and are symmetrically arranged. The gap between the two first protrusions 32 forms a first slide groove 33. The upper surface of the connection plate 31 is also fixedly connected to a second protrusion 34, which is placed in the first slide groove 33 and is parallel to the first protrusion 32. The cross-sectional shape of the second protrusion 32 is non-square, non-rectangular, or non-narrow-upper-wide-lower-trapezoidal, and preferably the cross-sectional shape of the second protrusion 32 is wide at the top and narrow at the bottom. In this embodiment, the cross-sectional shape of the second protrusion 32 is a spherical shape with a larger transverse diameter in the upper section and a square shape with a smaller transverse diameter in the lower section; the shape of the second slide groove 43 matches the second protrusion 32.
[0027] Moreover, a buffer block 45 matching its shape is also covered on the upper end surface of the second projection 32. When the second projection 32 slides into the second chute 43, the buffer block 45 is placed between the two to play a shock-proof buffering role.
[0028] The second connection module 4 includes a mounting plate 41, and a third protrusion 42 is fixedly mounted on the bottom of the mounting plate 41. The third protrusion 42 is in an inverted "U" shape, and a second slide groove 43 matching the shape of the second protrusion 34 is opened at the bottom. The thickness of the side walls of the third protrusion 42 on both sides of the second slide groove 43 is not greater than the spacing between the first protrusion 32 and the second protrusion 34, that is, the third protrusion 42 can slide into the first slide groove 43, and the second protrusion 34 slides into the second slide groove 43 synchronously, so that the first connection module 3 and the second connection module 4 can be interlocked.
[0029] like Figure 2-4 A horizontally arranged guide rod 35 is fixedly mounted on the outer side wall of each first protrusion 32. The guide rod 35 includes a rod body and a rod head with a diameter larger than the rod body formed at one end away from the first protrusion 32. An auxiliary block 38 is also arranged on the outer side of the first protrusion 32. The auxiliary block 38 is arranged horizontally and one end of the auxiliary block 38 can telescopically penetrate the first protrusion 32. A limit block 37 is also fixedly connected to the outer side wall of the auxiliary block 38. The limit block 37 can be movably sleeved on the rod body of the guide rod 35. A spring 36 is also sleeved on the rod body of the guide rod 35. The spring 36 is connected between the rod head of the guide rod 35 and the limit block 37.
[0030] The third protrusion 42 has limiting grooves 44 on both opposite side walls of the first slide groove 33 . The limiting grooves 44 match the shape of the auxiliary block 38 . One end of the auxiliary block 38 passes through the first protrusion 32 and can be elastically inserted into the limiting groove 44 .
[0031] A hand-grip groove 39 is formed on the surface of the auxiliary block 38 which is away from the first protrusion 32 and runs through the auxiliary block 38 from top to bottom.
Claims
1. An adjustable and detachable caster device, characterized in that: It includes a caster body, a caster support frame and a connecting component; the caster body is installed on the caster support frame; the connecting component includes a first connecting module and a second connecting module, the first connecting module is fixedly installed on the top of the caster support frame, and the second connecting module can be interlocked or separated with the first connecting module.
2. The adjustable and detachable caster device according to claim 1, characterized in that: The position of the caster body relative to the caster support frame is the lower side; the first connection module includes a connection plate, and the connection plate is horizontally connected to the top of the caster support frame; two first protrusions that are spaced and symmetrically arranged are fixedly installed on the connection plate, and the gap between the two first protrusions forms a first slide groove; the connection plate is also fixedly connected to a second protrusion, and the second protrusion is placed in the first slide groove and is parallel to the first protrusion; the cross-sectional shape of the second protrusion is non-square, non-rectangular, or non-trapezoidal with narrow top and wide bottom; The second connection module includes a mounting plate, a third protrusion is fixedly mounted on the bottom of the mounting plate, the third protrusion is in an inverted "U" shape, a second slide groove matching the shape of the second protrusion is opened at the bottom, and the width of the third protrusion is not greater than the width of the first slide groove; The third protrusion can slide into the first sliding groove, and the second protrusion can slide into the second sliding groove synchronously, so as to realize the mutual buckling of the first connecting module and the second connecting module.
3. The adjustable and detachable caster device according to claim 2, characterized in that: A horizontally arranged guide rod is fixed on the outer side wall of at least one of the first protrusions; the guide rod comprises a rod body and a rod head with a diameter larger than that of the rod body formed at one end away from the first protrusion; an auxiliary block is also arranged on the outer side of the first protrusion, the auxiliary block is arranged horizontally and one end of the auxiliary block can telescopically penetrate the first protrusion; a limiting block is also fixedly connected to the outer side wall of the auxiliary block, the limiting block can be movably sleeved on the rod body of the guide rod; and a spring is also sleeved on the rod body of the guide rod, the spring is connected between the rod head of the guide rod and the limiting block; The third protrusion is provided with a limiting groove on at least one of the two opposite side walls of the first sliding groove, and one end of the auxiliary block passes through the first protrusion and can be elastically inserted into the limiting groove.
4. The adjustable and detachable caster device according to claim 2, characterized in that: The cross-section of the second protrusion is wide at the top and narrow at the bottom.
5. The adjustable and detachable caster device according to claim 4, characterized in that: The cross-sectional shape of the second protrusion is a sphere with a larger transverse diameter in the upper section and a square with a smaller transverse diameter in the lower section; the shape of the second sliding groove matches the second protrusion.
6. The adjustable and detachable caster device according to claim 2, characterized in that: The upper end surface of the second protrusion is also covered with a buffer block matching its shape; when the second protrusion slides into the second sliding groove, the buffer block is placed between the two to play a shock-resistant and buffering role.
7. The adjustable and detachable caster device according to claim 3, characterized in that: A surface of the auxiliary block on one side away from the first protrusion is also provided with a recessed or vertically penetrating hand-gripping groove.