Trundle with rubber buffer pad
By setting limit and support devices on the casters, using components such as limit cylinder, sliding plate and damping rod, the problem of changing the position of the buffer pad affecting the buffer effect is solved, and better buffer and support effect is achieved.
Patent Information
- Application Number
- CN202423314446.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-08-15
- Estimated Expiration
- 2034-12-31
AI Technical Summary
During use, the existing buffer pad may change its position when the degree of deformation is high, affecting the subsequent buffering effect.
By setting up a connection device and a support device, the position of the cushion pad is limited by using components such as the limiting cylinder, sliding plate, damping rod and spring, and avoiding it from changing its position, and improving the cushioning and support effect through the combination of the damping rod and spring.
It effectively avoids the change in the buffer position affecting the cushioning effect and improves the cushioning and support performance.
Smart Images
Figure CN223224136U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of casters, and more specifically relates to a caster provided with a rubber buffer pad. Background Art
[0002] The rubber buffer pad is a device that acts as a shock absorber when the caster drives the object to move. When using the buffer pad, the buffer pad is set on the top of the caster, and then the buffer pad is set on the surface of the sliding rod. When the sliding rod moves inside the connecting tube, the rubber buffer pad is squeezed, which can play a certain buffering role, thereby reducing the vibration of the caster carrying the moving object to a certain extent.
[0003] The inventor found in his daily work that the buffer pad still has at least the following problems: when using the buffer pad, the buffer pad is set on the top of the caster, and then the buffer pad is set on the surface of the connecting rod. When the sliding rod moves inside the connecting tube, the rubber buffer pad is squeezed, which can play a certain buffering role, and thus reduce the vibration of the caster carrying the moving object to a certain extent. However, in actual use, when the deformation of the buffer pad is large, it may cause the buffer pad to be changed in position, which in turn affects the subsequent buffering effect to a certain extent. Utility Model Content
[0004] The main purpose of the utility model is to provide a caster with a rubber buffer pad.
[0005] The top of the support frame is fixed with a first end face and a second end face of the support frame is fixed with a first end face and a second end face of the support frame is fixed with a first end face and a second end face of the support frame is fixed with a first end face and a second end face of the support frame is fixed with a first end face and a second end face of the support frame is fixed with a first end face and a second end face of the support frame
[0006] When using the connecting device, manually put the two limiting cylinders on the surface of the sliding rod, and then slide the sliding plate out of the interior of the limiting cylinder, and insert the bolt through the sliding plate into the interior of the other sliding plate. This can effectively limit the first connecting block and the second connecting block fixed on the outside of the limiting cylinder to the surface of the sliding rod, which can to a certain extent prevent the buffer pad body from changing position and affecting the subsequent buffering effect.
[0007] According to the caster with a rubber buffer pad described in the embodiment of the first aspect of the utility model, a second damping rod is evenly fixedly connected to the top of the inner wall of the limiting cylinder, the bottom of the second damping rod is fixedly connected to the top of the sliding plate, a second spring is sleeved on the surface of the second damping rod, one end of the second spring is fixedly connected to the top of the inner wall of the limiting cylinder, and the bottom of the second spring is fixedly connected to the top of the sliding plate. The second spring presses the sliding plate in a direction away from the limiting cylinder, thereby effectively confining the sliding plate outside the limiting cylinder.
[0008] According to the caster with a rubber buffer pad described in the embodiment of the first aspect of the utility model, the surface of the limiting cylinder is provided with a circular groove, the inner wall of the circular groove is provided with a semicircular ring, and both ends of the semicircular ring are fixedly connected to a rectangular plate, and the rectangular plate is slidably inserted into one side of the other semicircular ring, and a fixing rod is slidably inserted through one side of the other semicircular ring, and the fixing rod is slidably inserted into one side of the rectangular plate. The two semicircular rings are manually sleeved on the surface of the circular groove, and then the rectangular plate is inserted into one side of the other semicircular ring. Then, the fixing rod is inserted into the interior of the rectangular plate after passing through the other semicircular ring.
[0009] According to the caster with a rubber cushion as described in an embodiment of the first aspect of the present invention, a third spring is sleeved on the surface of the fixing rod, one end of the third spring is fixedly connected to one end of the fixing rod, and the end of the third spring proximal to the fixing rod is fixedly connected to one side of the other semicircular ring. The third spring pulls the fixing rod toward the semicircular ring, thereby confining the fixing rod within the rectangular plate.
[0010] According to the caster with rubber cushions described in the embodiment of the first aspect of the present invention, the surfaces of the two semicircular rings are covered with rubber sleeves. The rubber sleeves are manually covered on the surfaces of the two semicircular rings, so that the two semicircular rings can be well confined inside the circular groove.
[0011] According to the caster with a rubber buffer pad described in the embodiment of the first aspect of the present invention, the support device includes a connecting plate, the inner walls of the first connecting block and the second connecting block are each provided with a cavity, the upper and lower inner walls of the cavity are fixedly connected to the connecting plate, the top of the connecting plate is evenly fixedly connected with a third damping rod, the top of the third damping rod is fixedly connected to one side of another connecting plate, the surface of the third damping rod is sleeved with a fourth spring, the bottom of the fourth spring is fixedly connected to the top of the connecting plate, and the top of the fourth spring is fixedly connected to the bottom of another connecting plate. When the support device is used, the connecting plate is squeezed in a direction away from the cavity by the fourth spring, which can improve the supporting effect of the rubber buffer pad body to a certain extent.
[0012] According to the caster with a rubber cushion pad described in the first embodiment of the present invention, the connecting plate is fixedly connected to an inclined plate on one side of the connecting plate near the cavity, the connecting plates of the inclined plates are connected by elastic components, the bottom of the inclined plate is fixedly connected to a rubber block, and the bottom of the rubber block is fixedly connected to the top of another inclined plate. The four inclined plates are arranged in a diamond shape by the rubber block and the elastic components, which can improve the support effect of the cushion pad body to a certain extent.
[0013] According to the caster with a rubber buffer pad described in the embodiment of the first aspect of the utility model, a fourth damping rod is fixedly connected to one side of the rubber block, an end of the fourth damping rod remote from the rubber block is fixedly connected to one side of another rubber block, a fifth spring is sleeved on the surface of the fourth damping rod, one end of the fifth spring is fixedly connected to one side of the rubber block, and an end of the fifth spring close to the fourth damping rod is fixedly connected to one side of the other rubber block. The fifth spring pulls the rubber block toward the middle position, thereby improving the support capacity of the diamond shape to a certain extent.
[0014] One of the above technical solutions of the utility model has at least one of the following advantages or beneficial effects:
[0015] In this caster with a rubber buffer pad, a connecting device is provided. When using the connecting device, the two limiting cylinders are manually sleeved on the surface of the sliding rod, and then the sliding plate is slid out of the interior of the limiting cylinder, and the bolt is passed through the sliding plate and inserted into the interior of the other sliding plate. In this way, the first connecting block and the second connecting block fixed on the outside of the limiting cylinder can be well restricted to the surface of the sliding rod, which can to a certain extent avoid the buffer pad body from changing position and affecting the subsequent buffering effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments;
[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of a caster provided with a rubber buffer pad in an embodiment of the present utility model;
[0018] Figure 2 This is a schematic diagram of the three-dimensional structure of a rectangular plate in an embodiment of the present utility model;
[0019] Figure 3 This is a schematic diagram of the three-dimensional structure of the sliding plate in the embodiment of the present utility model;
[0020] Figure 4 It is a schematic diagram of the three-dimensional structure of the inclined plate in the embodiment of the present utility model. DETAILED DESCRIPTION
[0021] The following describes embodiments of the present invention in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be understood as limiting the present invention.
[0022] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.
[0023] In the description of this utility model, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and is not to be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.
[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or to implicitly indicate the quantity of the technical features indicated. Thus, features defined as "first" and "second" may explicitly or implicitly include one or more features.
[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, it can be a fixed connection or a movable connection, a detachable connection or a non-detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection or an indirect connection through an intermediate medium, and it can be internal connection between two elements, indirect connection, or an interactive relationship between two elements.
[0026] The following disclosure provides many different embodiments or examples for implementing different solutions of the present invention.
[0027] Reference Figures 1 to 4 The top of the support frame 2 is fixedly connected to the caster, and the inner wall of the connecting tube 5 is slidably connected to the sliding rod 3. The top of the sliding rod 3 is fixedly connected to the fixing plate 4. The bottom of the sliding rod 3 is fixedly connected to the first damping rod 6. The bottom of the first damping rod 6 is fixedly connected to the top of the inner wall of the connecting tube 5. The surface of the first damping rod 6 is sleeved with a first spring 7. The top of the first spring 7 is fixedly connected to the bottom of the sliding rod 3. The bottom of the first spring 7 is fixedly connected to the bottom of the inner wall of the connecting tube 5. The top of the buffer pad body 1 is provided with a connecting device 8, and the inside of the buffer pad body 1 is provided with a supporting device 9. When using the buffer pad, the buffer pad is set on the top of the caster, and then the buffer pad is set on the surface of the sliding rod 3. When the sliding rod 3 moves inside the connecting tube 5, the rubber buffer pad is squeezed, which can play a certain buffering role, thereby reducing the vibration of the caster carrying the moving object to a certain extent.
[0028] In some embodiments of the present invention, Figure 2 and Figure 3 The connecting device 8 includes a first connecting block 801 and a second connecting block 802. The tops of the inner walls of the first connecting block 801 and the second connecting block 802 are fixedly connected to the limiting cylinder 803. The inner wall of the limiting cylinder 803 is slidably connected to the sliding plate 804. The limiting cylinder 803 is sleeved on the surface of the sliding rod 3. A bolt 812 is inserted through a thread on one side of the sliding plate 804. The bolt 812 is threadedly inserted on one side of the other sliding plate 804. When using the connecting device 8, the two limiting cylinders 803 are manually sleeved on the surface of the sliding rod 3, and then the sliding plate 804 is slid out of the interior of the limiting cylinder 803, and the bolt 812 passes through the sliding plate 804 and is inserted into the other side. The interior of a sliding plate 804 can well limit the first connecting block 801 and the second connecting block 802 fixed on the outside of the limiting cylinder 803 to the surface of the sliding rod 3, which can to a certain extent prevent the buffer pad body 1 from changing position and affecting the subsequent buffering effect. The top of the inner wall of the limiting cylinder 803 is evenly fixedly connected with the second damping rod 805, and the bottom of the second damping rod 805 is fixedly connected to the top of the sliding plate 804. The surface of the second damping rod 805 is sleeved with a second spring 806, and one end of the second spring 806 is fixedly connected to the top of the inner wall of the limiting cylinder 803, and the bottom of the second spring 806 is fixedly connected to the top of the sliding plate 804.
[0029] The second spring 806 presses the sliding plate 804 in the direction away from the limiting cylinder 803, which can well limit the sliding plate 804 to the outside of the limiting cylinder 803. The surface of the limiting cylinder 803 is provided with a circular groove 807, and the inner wall of the circular groove 807 is provided with a semicircular ring 808. Both ends of the semicircular ring 808 are fixedly connected with a rectangular plate 809. The rectangular plate 809 is slidably inserted into one side of the other semicircular ring 808. A fixing rod 810 is inserted and slidably inserted into one side of the rectangular plate 809. The two semicircular rings 808 are manually sleeved on the surface of the circular groove 807, and then the rectangular plate 809 is inserted into one side of the other semicircular ring 808. After passing through the other semicircular ring 808, the fixing rod 810 is inserted into the interior of the rectangular plate 809. A third spring 811 is provided on the surface of the fixing rod 810. One end of the third spring 811 is fixedly connected to one end of the fixing rod 810. The end of the third spring 811 close to the fixing rod 810 is fixedly connected to one side of the other semicircular ring 808. The fixing rod 810 is pulled toward the semicircular ring 808 by the third spring 811, thereby restricting the fixing rod 810 to the interior of the rectangular plate 809. The surfaces of the two semicircular rings 808 are provided with rubber sleeves 813. The rubber sleeves 813 are manually placed on the surfaces of the two semicircular rings 808, so that the two semicircular rings 808 can be well restricted to the interior of the circular groove 807.
[0030] In some embodiments of the present invention, Figure 4 The supporting device 9 includes a connecting plate 902, and the inner walls of the first connecting block 801 and the second connecting block 802 are both provided with a cavity 901. The upper and lower inner walls of the cavity 901 are fixedly connected to the connecting plate 902, and the top of the connecting plate 902 is evenly fixedly connected with a third damping rod 903. The top of the third damping rod 903 is fixedly connected to one side of the other connecting plate 902. The surface of the third damping rod 903 is sleeved with a fourth spring 904, and the bottom of the fourth spring 904 is fixedly connected to the top of the connecting plate 902. The top of the fourth spring 904 is fixedly connected to the bottom of the other connecting plate 902. When the supporting device 9 is used, the connecting plate 902 is squeezed in the direction away from the cavity 901 by the fourth spring 904, which can improve the supporting effect of the rubber buffer pad body 1 to a certain extent.
[0031] In some embodiments of the present invention, a side of the connecting plate 902 close to the cavity 901 is fixedly connected to a slanted plate 905, and the connecting plate 902 of the slanted plate 905 is connected by an elastic component. The bottom of the slanted plate 905 is fixedly connected to a rubber block 907, and the bottom of the rubber block 907 is fixedly connected to the top of another slanted plate 905. The four slanted plates 905 are formed into a diamond shape by the rubber block 907 and the elastic component, which can improve the support effect of the buffer pad body 1 to a certain extent. A fourth damping rod 908 is fixedly connected to one side of the rubber block 907, and one end of the fourth damping rod 908 away from the rubber block 907 is fixedly connected to one side of the other rubber block 907. A fifth spring 906 is sleeved on the surface of the fourth damping rod 908, and one end of the fifth spring 906 is fixedly connected to one side of the rubber block 907, and one end of the fifth spring 906 close to the fourth damping rod 908 is fixedly connected to one side of the other rubber block 907. The rubber block 907 is pulled toward the middle position by the fifth spring 906, which can improve the support capacity of the diamond shape to a certain extent.
[0032] When using the buffer pad, the buffer pad is set on the top of the caster, and then the buffer pad is set on the surface of the sliding rod 3. When the sliding rod 3 moves inside the connecting tube 5, the rubber buffer pad is squeezed, which can play a certain buffering role, thereby reducing the vibration of the caster carrying the moving object to a certain extent. When using the connecting device 8, the two limiting cylinders 803 are manually sleeved on the surface of the sliding rod 3, and then the sliding plate 804 is slid out of the limiting cylinder 803. The sliding plate 804 is squeezed in the direction away from the limiting cylinder 803 by the second spring 806. This can well limit the sliding plate 804 to the outside of the limiting cylinder 803, and then the bolt 812 is passed through the sliding plate 804 and inserted into the inside of the other sliding plate 804. Manually sleeve the two semicircular rings 808 on the surface of the circular groove 807, and then insert the rectangular plate 809 to one side of the other semicircular ring 808, and then the fixing rod 810 is passed through the other semicircular ring 808 and inserted into the inside of the rectangular plate 809.
[0033] The third spring 811 pulls the fixing rod 810 in the direction close to the semicircular ring 808, thereby limiting the fixing rod 810 to the inside of the rectangular plate 809, and then manually puts the rubber sleeve 813 on the surface of the two semicircular rings 808. This can effectively limit the two semicircular rings 808 to the inside of the circular groove 807, so that the first connecting block 801 and the second connecting block 802 fixed on the outside of the limiting cylinder 803 can be effectively limited to the surface of the sliding rod 3. This can to a certain extent prevent the buffer pad body 1 from changing position and affecting the subsequent buffering effect. When using the support device 9, the fourth spring 904 squeezes the connecting plate 902 in the direction away from the cavity 901, and the four inclined plates 905 are formed into a diamond shape by the rubber block 907 and the elastic component. The fifth spring 906 pulls the rubber block 907 toward the middle position, which can to a certain extent improve the supporting capacity of the diamond shape, which can to a certain extent improve the supporting effect of the rubber buffer pad body 1.
[0034] It should be noted that all damping rods in this case are retractable dampers that can absorb energy during the retraction and extension process.
[0035] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.
Claims
1. A caster with a rubber cushion, comprising a support frame (2) connected to the caster and a cushion body (1) arranged above the support frame (2), characterized in that: The top of the support frame (2) is fixedly connected to a connecting tube (5), the inner wall of the connecting tube (5) is slidably connected to a sliding rod (3), the top of the sliding rod (3) is fixedly connected to a fixing plate (4), the bottom of the sliding rod (3) is fixedly connected to a first damping rod (6), the bottom of the first damping rod (6) is fixedly connected to the top of the inner wall of the connecting tube (5), the surface of the first damping rod (6) is sleeved with a first spring (7), the top of the first spring (7) is fixedly connected to the bottom of the sliding rod (3), the bottom of the first spring (7) is fixedly connected to the bottom of the inner wall of the connecting tube (5), the top of the buffer pad body (1) is fixedly connected to the bottom of the sliding rod (3), the bottom of the first spring (7) is fixedly connected to the bottom of the inner wall of the connecting tube (5), and the top of the buffer pad body (1) is fixedly connected to the bottom of the sliding rod (3). A connecting device (8) is provided, and a supporting device (9) is provided inside the buffer pad body (1). The connecting device (8) includes a first connecting block (801) and a second connecting block (802). The tops of the inner walls of the first connecting block (801) and the second connecting block (802) are fixedly connected to a limiting cylinder (803). The inner wall of the limiting cylinder (803) is slidably connected to a sliding plate (804). The limiting cylinder (803) is sleeved on the surface of the sliding rod (3). A bolt (812) is threadedly inserted through one side of the sliding plate (804). The bolt (812) is threadedly inserted into one side of the other sliding plate (804).
2. The caster with a rubber buffer pad according to claim 1, characterized in that: The top of the inner wall of the limiting cylinder (803) is evenly fixedly connected with a second damping rod (805), the bottom of the second damping rod (805) is fixedly connected to the top of the sliding plate (804), the surface of the second damping rod (805) is sleeved with a second spring (806), one end of the second spring (806) is fixedly connected to the top of the inner wall of the limiting cylinder (803), and the bottom of the second spring (806) is fixedly connected to the top of the sliding plate (804).
3. The caster with a rubber buffer pad according to claim 1, characterized in that: A circular groove (807) is provided on the surface of the limiting cylinder (803), and a semicircular ring (808) is sleeved on the inner wall of the circular groove (807). Rectangular plates (809) are fixedly connected to both ends of the semicircular ring (808), and the rectangular plates (809) are slidably inserted on one side of the other semicircular ring (808). A fixing rod (810) is slidably inserted through one side of the other semicircular ring (808), and the fixing rod (810) is slidably inserted on one side of the rectangular plate (809).
4. The caster with a rubber buffer pad according to claim 3, characterized in that: A third spring (811) is sleeved on the surface of the fixing rod (810), one end of the third spring (811) is fixedly connected to one end of the fixing rod (810), and one end of the third spring (811) close to the fixing rod (810) is fixedly connected to one side of the other semicircular ring (808).
5. The caster with a rubber buffer pad according to claim 3, characterized in that: The surfaces of the two semicircular rings (808) are covered with rubber sleeves (813).
6. The caster with a rubber buffer pad according to claim 1, characterized in that: The supporting device (9) comprises a connecting plate (902), the inner walls of the first connecting block (801) and the second connecting block (802) are both provided with a cavity (901), the upper and lower inner walls of the cavity (901) are fixedly connected to the connecting plate (902), the top of the connecting plate (902) is evenly fixedly connected with a third damping rod (903), the top of the third damping rod (903) is fixedly connected to one side of the other connecting plate (902), the surface of the third damping rod (903) is sleeved with a fourth spring (904), the bottom of the fourth spring (904) is fixedly connected to the top of the connecting plate (902), and the top of the fourth spring (904) is fixedly connected to the bottom of the other connecting plate (902).
7. The caster with a rubber buffer pad according to claim 6, characterized in that: The connecting plate (902) is fixedly connected to a slanted plate (905) on one side close to the cavity (901), the connecting plate (902) of the slanted plate (905) is connected via an elastic component, the bottom of the slanted plate (905) is fixedly connected to a rubber block (907), and the bottom of the rubber block (907) is fixedly connected to the top of another slanted plate (905).
8. The caster with a rubber buffer pad according to claim 7, characterized in that: One side of the rubber block (907) is fixedly connected to a fourth damping rod (908), one end of the fourth damping rod (908) away from the rubber block (907) is fixedly connected to one side of another rubber block (907), a fifth spring (906) is sleeved on the surface of the fourth damping rod (908), one end of the fifth spring (906) is fixedly connected to one side of the rubber block (907), and one end of the fifth spring (906) close to the fourth damping rod (908) is fixedly connected to one side of another rubber block (907).