Trundle supporting assembly
By designing the combination of oil cylinder and adjustment screws, the height adjustment and precise control of the caster support assembly are achieved, which solves the problem of the inability to adjust the height in the prior art, and improves the service life and operational convenience of the equipment.
Patent Information
- Application Number
- CN202422470633.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-13
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-10-13
AI Technical Summary
The existing caster support assembly cannot adjust the height, resulting in damage to the vehicle body on roads with poor road conditions, reducing service life and not being able to achieve accurate lifting and lowering adjustment.
A caster support assembly is designed, including a cylinder, adjustment screw and nut. The height adjustment of the caster is achieved through the lifting and lowering of the cylinder and the threaded connection of the adjustment screw. It is equipped with a limit switch to ensure stability and accuracy.
It realizes flexible lifting and precise adjustment of casters, reduces damage to the vehicle body, improves the service life and operation convenience of the equipment, and increases the practicality and applicability of the equipment.
Smart Images
Figure CN223131720U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of caster auxiliary support, in particular to a caster support assembly. Background Art
[0002] A caster is a device installed at the bottom of an object to enable the object to move easily, and the caster support assembly is an important part of the caster system. It mainly plays the roles of connecting the caster and the supported object, transmitting loads, and ensuring the normal operation of the caster. Early casters were mainly made of wood or metal and were used to move heavy objects. Modern casters are usually made of materials such as rubber, polyurethane, and nylon, and have better wear resistance, shock absorption, and load-bearing capacity. As an important part of many transportation devices, casters play a crucial role in the transportation industry. Currently, similar products on the existing market, such as caster support assemblies, are composed of parts such as wheels, fixing components, and brackets. Some caster support assemblies do not have the function of adjusting height. The casters and other components are assembled with the vehicle body to form a caster vehicle for use. The distance between the caster and the vehicle body chassis is relatively close. Traditional casters cannot adjust the height of the wheels according to road conditions during use. When passing through roads with poor road conditions, it will cause damage to the casters and the vehicle body, reducing the service life. Summary of the Utility Model
[0003] To make up for the above deficiencies, the utility model provides a caster support assembly, aiming to improve the problem of inability to lift and lower.
[0004] To achieve the above object, the utility model provides the following technical solution: A caster support assembly includes a fixed seat. A hydraulic cylinder is fixedly connected to the side wall of the fixed seat. A first oil port is arranged at the top end of the hydraulic cylinder, and a second oil port is arranged on the side wall of the hydraulic cylinder. A cylinder rod is arranged on the inner wall of the hydraulic cylinder. The bottom end of the cylinder rod is fixedly connected with an adjusting screw. An adjusting nut is threadedly connected to the outer wall of the adjusting screw. A lower limit switch is arranged at the bottom end of the adjusting screw. A wheel support frame is arranged at the bottom end of the adjusting nut. A caster is arranged at the bottom end of the wheel support frame.
[0005] Preferably, a slide rail is arranged on the side wall at the bottom end of the fixed seat, and the outer wall of the slide rail is slidably connected to one side of the wheel support frame.
[0006] Preferably, an upper limit switch is arranged on the side wall of the fixed seat, and one side of the lower limit switch is located inside the wheel support frame.
[0007] Preferably, an L-shaped oil pipe is fixedly communicated with the outer wall of the hydraulic cylinder, and a second oil port is arranged at one end of the L-shaped oil pipe.
[0008] Preferably, a slider is fixedly connected to the side wall of the wheel support frame, and an upper limit switch is arranged on one side of the slider, and the upper limit switch is located above the slider.
[0009] Preferably, one side of the wheel support frame is fixedly connected with a slider, and one side of the slider is slidably connected to the outer wall of the slide rail.
[0010] The utility model has the following beneficial effects:
[0011] 1. In the utility model, the oil cylinder can achieve the effect of lifting. It can not only lift, but also reduce the damage to the vehicle body, increase the service life of the equipment, and make the operation more convenient. It solves the problem of inability to lift and increases the practicability of the equipment.
[0012] 2. In the utility model, the adjusting screw and the adjusting nut can achieve the effect of fine-tuning the lifting precision. It can not only adjust the lifting precision, but also avoid the damage of the equipment, save the use time, solve the problem of inability to fine-tune the lifting precision, and increase the applicability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 is a side view of a caster support assembly proposed by the utility model;
[0014] Figure 2 is a front view of a caster support assembly proposed by the utility model.
[0015] Legend:
[0016] 1. First oil port; 2. Second oil port; 3. Fixed seat; 4. Upper limit switch; 5. Slide rail; 6. Wheel support frame; 7. Caster; 8. Oil cylinder; 9. Adjusting screw; 10. Adjusting nut; 11. Lower limit switch; 12. Cylinder rod. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0017] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0018] Refer to Figure 1 - Figure 2, an embodiment provided by the present utility model: a caster support assembly, including a fixed seat 3, a side wall of the fixed seat 3 is fixedly connected with an oil cylinder 8, a first oil port 1 is arranged at the top end of the oil cylinder 8, a second oil port 2 is arranged on the side wall of the oil cylinder 8, a cylinder rod 12 is arranged on the inner wall of the oil cylinder 8, the bottom end of the cylinder rod 12 is fixedly connected with an adjusting screw 9, an adjusting nut 10 is threadedly connected to the outer wall of the adjusting screw 9, a lower limit switch 11 is arranged at the bottom end of the adjusting screw 9, a wheel support frame 6 is arranged at the bottom end of the adjusting nut 10, a caster 7 is arranged at the bottom end of the wheel support frame 6, a slide rail 5 is arranged on the bottom side wall of the fixed seat 3, the outer wall of the slide rail 5 is slidably connected to one side of the wheel support frame 6, an upper limit switch 4 is arranged on the side wall of the fixed seat 3, one side of the lower limit switch 11 is located inside the wheel support frame 6, an L-shaped oil pipe is fixedly communicated with the outer wall of the oil cylinder 8, one end of the L-shaped oil pipe is provided with the second oil port 2, a slider is fixedly connected to the side wall of the wheel support frame 6, an upper limit switch 4 is arranged on one side of the slider, the upper limit switch 4 is located above the slider, a slider is fixedly connected to one side of the wheel support frame 6, and one side of the slider is slidably connected to the outer wall of the slide rail 5.
[0019] Specifically, when the user needs to adjust the height, oil is injected into the oil cylinder 8 through the first oil port 1. Under the action of the oil pressure, the oil cylinder 8 pushes the cylinder rod 12 inside the oil cylinder 8, causing the cylinder rod 12 to move downward. The continuous injection of oil pushes the cylinder rod 12 to move downward. One end of the cylinder rod 12 is fixedly connected to an adjusting screw 9. The middle of the adjusting screw 9 is threadedly connected to an adjusting nut 10. The cylinder rod 12 also pushes the adjusting screw 9 and the adjusting nut 10 to move. The lower end of the adjusting nut 10 pushes the wheel support frame 6 to move. A slider is installed on the side wall of the wheel support frame 6. When the wheel support frame 6 moves, the slider can move on the slide rail 5. When it moves a certain distance, the end of the adjusting screw 9 will abut against the lower limit switch 11. The lower limit switch 11 is a direct-pressure plunger type limit switch. Being squeezed by the adjusting screw 9 will trigger the limit of the lower limit switch 11, causing the first oil port 1 to stop injecting oil, and then causing the oil cylinder 8 and the cylinder rod 12 to stop pushing. The oil cylinder 8 and the wheel support frame 6 can be fixed through the fixing seat 3 to avoid instability. The user injects oil at the second oil port 2, causing the cylinder rod 12 to rise. The wheel support frame 6 and the casters 7 stand on the ground. When the slider on the wheel support frame 6 rises, it will squeeze and touch the upper limit switch 4, causing the cylinder rod 12 to stop moving. By twisting the adjusting nut 10, the lifting height can be adjusted, and the lifting position of the casters 7 can be adjusted. The lifting effect can be achieved through the oil cylinder 8. It can not only be lifted and lowered, but also reduce the damage to the vehicle body, increase the service life of the equipment, make the operation more convenient, solve the problem of inability to lift and lower, and increase the practicality of the equipment. The effect of fine-tuning the lifting accuracy can be achieved through the adjusting screw 9 and the adjusting nut 10. It can not only adjust the lifting accuracy, but also avoid the damage of the equipment, save the use time, solve the problem of inability to fine-tune the lifting accuracy, and increase the applicability of the equipment.
[0020] Working principle: When the user needs to adjust the height, oil is injected into the oil cylinder 8 through the first oil port 1. Under the action of the oil pressure, the oil cylinder 8 pushes the cylinder rod 12 in the oil cylinder 8, causing the cylinder rod 12 to move downward. The continuous injection of oil pushes the cylinder rod 12 to move downward. One end of the cylinder rod 12 is fixedly connected with an adjusting screw 9, and the middle of the adjusting screw 9 is threadedly connected with an adjusting nut 10. The cylinder rod 12 also pushes the adjusting screw 9 and the adjusting nut 10 to move. The lower end of the adjusting nut 10 pushes the wheel support frame 6 to move, and a slider is installed on the side wall of the wheel support frame 6. When the wheel support frame 6 moves, the slider can move on the slide rail 5. When it moves a certain distance, the end of the adjusting screw 9 will abut against the lower limit switch 11. The lower limit switch 11 is a direct-pressure plunger type limit switch. The limit of the lower limit switch 11 will be triggered by the extrusion of the adjusting screw 9, causing the first oil port 1 to stop injecting oil, and then the oil cylinder 8 and the cylinder rod 12 to stop pushing. The oil cylinder 8 and the wheel support frame 6 can be fixed through the fixing seat 3 to avoid instability. The user injects oil at the second oil port 2, causing the cylinder rod 12 to rise. The wheel support frame 6 and the casters 7 stand on the ground. When the slider on the wheel support frame 6 rises, it will squeeze and touch the upper limit switch 4, causing the cylinder rod 12 to stop moving. The lifting height can be adjusted by twisting the adjusting nut 10 to adjust the lifting position of the casters 7.
[0021] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A caster support assembly, comprising a fixed seat (3), characterized in that: The side wall of the fixed seat (3) is fixedly connected with an oil cylinder (8). The top end of the oil cylinder (8) is provided with a first oil port (1). The side wall of the oil cylinder (8) is provided with a second oil port (2). A cylinder rod (12) is arranged on the inner wall of the oil cylinder (8). The bottom end of the cylinder rod (12) is fixedly connected with an adjusting screw (9). The outer wall of the adjusting screw (9) is threadedly connected with an adjusting nut (10). The bottom end of the adjusting screw (9) is provided with a lower limit switch (11). The bottom end of the adjusting nut (10) is provided with a wheel support frame (6). The bottom end of the wheel support frame (6) is provided with a caster (7).
2. The caster support assembly according to claim 1, wherein: The bottom side wall of the fixed seat (3) is provided with a slide rail (5). The outer wall of the slide rail (5) is slidably connected to one side of the wheel support frame (6).
3. The caster support assembly according to claim 1, characterized in that: The side wall of the fixed seat (3) is provided with an upper limit switch (4). One side of the lower limit switch (11) is located on the inner wall of the wheel support frame (6).
4. The caster support assembly according to claim 1, wherein: The outer wall of the oil cylinder (8) is fixedly communicated with an L-shaped oil pipe. One end of the L-shaped oil pipe is provided with a second oil port (2).
5. A caster support assembly according to claim 1, wherein: The side wall of the wheel support frame (6) is fixedly connected with a slider. One side of the slider is provided with an upper limit switch (4). The upper limit switch (4) is located above the slider.
6. The caster support assembly according to claim 2, wherein: One side of the wheel support frame (6) is fixedly connected with a slider. One side of the slider is slidably connected to the outer wall of the slide rail (5).