Shock-resistant damping universal wheel

Abstract

The utility model relates to an impact-resistant damping universal wheel, belongs to the technical field of universal wheel structures, and aims to solve the problem that the impact resistance of a universal wheel in the prior art is relatively weak. The device comprises a rotating base, a main body support, a wheel support and wheels, the main body support is arranged at the bottom of the rotating base, the wheel support is erected above the wheels, one end of the wheel support is coaxially connected with the wheels, the other end of the wheel support extends into the main body support, the middle of the wheel support is hinged to the main body support, and an elastic piece is connected between the end of the wheel support and the main body support; according to the scheme, the rotating base receives the load above and applies the load to the main body support, the main body support rotates and descends around the wheel shaft, and due to the fact that the middle of the first side plate is hinged to the second side plate, when the main body support descends, the wheel support can be driven to synchronously rotate and descend around the wheel shaft; the end of the wheel support gradually gets close to the bottom of the body support and compresses the elastic piece, the elastic piece provides buffering, and the situation that the service life of parts is affected due to direct impact on the parts at the axle is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of universal wheel structures, in particular to an impact-resistant and shock-absorbing universal wheel. Background Art

[0002] Universal wheels are so-called movable casters. Their structure allows 360-degree horizontal rotation and is widely used. Industrial production material transfer often uses hoisting to load and unload materials, and then uses a movable flatbed truck with universal wheels for hauling. During this process, tons of heavy materials will have a great impact on the flatbed truck when loaded, and the impact force is transferred to the universal wheel, which can easily cause damage to the hard-connected shaft components of conventional universal wheels. Based on this, this solution designs an impact-resistant universal wheel with shock-absorbing function. Utility Model Content

[0003] Based on the above description, the utility model provides an impact-resistant and shock-absorbing universal wheel to solve the problem that the universal wheel in the prior art has weak impact resistance.

[0004] The technical solution of the utility model to solve the above technical problems is as follows:

[0005] An impact-resistant and shock-absorbing universal wheel, comprising:

[0006] Swivel base;

[0007] The main body bracket is arranged at the bottom of the rotating base and has a hollow structure;

[0008] A wheel bracket, one end of which is connected to the wheel and the other end of which extends into the main body bracket;

[0009] Wherein, the middle part of the wheel bracket is hinged to the main body bracket, and an elastic member is connected between the end part of the wheel bracket and the main body bracket.

[0010] On the basis of the above technical solution, the present invention can also be improved as follows.

[0011] Furthermore, the wheel bracket includes a first side plate hinged to both sides of the wheel, a cover plate is provided on the top surface of the end of the first side plate away from the wheel, and the elastic member abuts against the cover plate.

[0012] Furthermore, the main support includes a top plate, a bottom plate and a second side plate, the cover plate extends between the second side plates, the bottom plate is parallel to the cover plate, and two ends of the elastic member are respectively in contact with the cover plate and the bottom plate.

[0013] Furthermore, the bottom plate is provided with an adjusting pin which passes through the bottom plate, the elastic member and the top plate.

[0014] Furthermore, the elastic member is a spring.

[0015] Furthermore, a first cotter pin is hinged between the first side panel and the wheel, a second cotter pin is hinged between the second side panels and the first side panel, a first slotted nut is arranged at the end of the first cotter pin, and a second slotted nut is arranged at the end of the second cotter pin, and the first slotted nut and the second slotted nut are located on the same side and are fixed in series using steel wire.

[0016] Furthermore, three groups of the first side panels are provided, and elastic members are provided between two adjacent groups of the first side panels.

[0017] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0018] The rotating base in this solution receives the load from above and applies it to the main support. The main support rotates and descends around the wheel axle. Since the middle part of the first side plate is hinged to the second side plate, the main support will drive the wheel support to rotate and descend around the wheel axle synchronously when it descends. During the descent, the end of the wheel support will gradually approach the bottom of the main support and compress the elastic member. The elastic member provides a buffer to avoid direct impact on the connecting member at the wheel axle, which affects the life of the parts. The connecting pin between the rotating base and the main support extends into the interior of the main support, which can limit the wheel support and ensure the accuracy of the reset. When walking on bumpy and complex roads, the universal wheel parts are damped by the elastic member, which effectively extends the service life of the universal wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the structure of an impact-resistant and shock-absorbing universal wheel provided in an embodiment of the utility model;

[0020] Figure 2 for Figure 1 The schematic diagram of the structure after the bottom plate and the second side plate behind the main frame are hidden;

[0021] Figure 3 for Figure 1 A schematic diagram of the structure from the back perspective;

[0022] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0023] 1. Rotating base; 2. Main body bracket; 21. Top plate; 22. Bottom plate; 23. Second side plate; 24. Adjusting pin; 25. First cotter pin; 3. Wheel bracket; 31. First side plate; 32. Cover plate; 33. Second cotter pin; 4. Elastic member; 5. Steel wire. DETAILED DESCRIPTION

[0024] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0026] It will be appreciated that spatial relationship terms such as "under," "beneath," "below," "under," "above," "above," etc., may be used herein to describe the relationship of an element or feature shown in the figures to other elements or features. It will be appreciated that, in addition to the orientations shown in the figures, spatial relationship terms also include different orientations of the device in use and operation. For example, if the device in the accompanying drawings is flipped, an element or feature described as "under other elements" or "under it" or "under it" will be oriented as being "above" the other elements or features. Thus, the exemplary terms "under" and "under" may include both upper and lower orientations. In addition, the device may also include additional orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptors used herein are interpreted accordingly.

[0027] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element, or connected to the other element through an intermediate element. The "connection" in the following embodiments should be understood as "electrical connection", "communication connection", etc. if the connected circuits, modules, units, etc. have electrical signals or data transmission between each other.

[0028] When used herein, the singular forms "a", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" etc. specify the presence of stated features, wholes, steps, operations, components, parts or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof.

[0029] like Figure 1-3The impact-resistant and shock-absorbing universal wheel shown in the figure comprises a rotating base 1, a main frame 2, a wheel frame 3 and a wheel, wherein the rotating base 1 and the wheel are conventional structures of existing universal wheels. The main frame 2 is arranged at the bottom of the rotating base 1, and the two are coaxially hinged to form a rotating connection, and the main frame 2 forms a hollow frame structure. The wheel frame 3 is erected above the wheel, one end of which is coaxially connected to the wheel, and the other end extends into the main frame 2, wherein the middle part of the wheel frame 3 is hinged to the main frame 2, and an elastic member 4 is connected between the end of the wheel frame 3 and the main frame 2. The elastic member 4 connects the wheel frame 3 and the main frame 2, and plays a buffering role for the upper load on the wheel.

[0030] like Figure 2 As shown, the wheel bracket 3 includes a first side plate 31 hinged to both sides of the wheel, and a cover plate 32 is arranged on the top surface of the end of the first side plate 31 away from the wheel, and the top of the elastic member 4 abuts against the cover plate 32. Figure 1 As shown, the main frame 2 includes a top plate 21, a bottom plate 22 and a second side plate 23, the cover plate 32 extends between the second side plates 23, the bottom plate 22 is parallel to the cover plate 32, and the two ends of the elastic member 4 are respectively in contact with the cover plate 32 and the bottom plate 22. The elastic member 4 is preferably a spring.

[0031] In one embodiment, an adjusting pin 24 is provided on the bottom plate 22 and passes through the bottom plate 22, the elastic member 4, and the top plate 21. The nut end of the adjusting pin 24 is arranged below the bottom plate 22, and the threaded end extends out of the cover plate 32 and is sleeved with a nut to form a lock. The adjusting pin 24 can change the initial compression amount of the spring, thereby changing the overall buffer tightness of the universal wheel.

[0032] In order to improve the bearing capacity, multiple parallel wheels can be designed, and the number of corresponding first side plates 31 should also be designed in multiple groups to ensure that both sides of each wheel have first side plates 31. The first side plates 31 are uniformly connected by welded cover plates 32, and corresponding elastic members 4 are arranged between two adjacent first side plates 31.

[0033] Specifically, a first cotter pin 25 is hinged between the first side plate 31 and the wheel, a second cotter pin 33 is hinged between the second side plates 23 and the first side plate 31, a first slotted nut is provided at the end of the first cotter pin 25, and a second slotted nut is provided at the end of the second cotter pin 33. The first slotted nut and the second slotted nut are located on the same side and are fixed in series using a steel wire 5.

[0034] The rotation axis of the wheel is defined as the first axis, and the connecting axis between the main frame 2 and the wheel frame 3 is defined as the second axis. The rotating base 1 receives the load from above and applies it to the main frame 2. The main frame 2 rotates around the first axis and descends. Since the middle part of the first side plate 31 is hinged with the second side plate 23, the main frame 2 will drive the wheel frame 3 to rotate and descend around the first axis synchronously when it descends. During the descent process, the cover plate 32 will gradually approach the bottom plate 22 and compress the elastic member 4. The elastic member 4 provides a buffer to avoid direct impact on the connecting member at the rotation axis and affect the life of the parts.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An impact-resistant and shock-absorbing universal wheel, characterized in that: include: Swivel base; The main body bracket is arranged at the bottom of the rotating base and has a hollow structure; A wheel bracket, one end of which is connected to the wheel and the other end of which extends into the main body bracket; Wherein, the middle part of the wheel bracket is hinged to the main body bracket, and an elastic member is connected between the end part of the wheel bracket and the main body bracket.

2. The impact-resistant and shock-absorbing universal wheel according to claim 1, characterized in that: The wheel bracket comprises a first side plate hinged to both sides of the wheel, a cover plate is arranged on the top surface of the end of the first side plate away from the wheel, and the elastic member abuts against the cover plate.

3. The impact-resistant and shock-absorbing universal wheel according to claim 2, characterized in that: The main frame comprises a top plate, a bottom plate and a second side plate, the cover plate extends between the second side plates, the bottom plate is parallel to the cover plate, and two ends of the elastic member are respectively in contact with the cover plate and the bottom plate.

4. The impact-resistant and shock-absorbing universal wheel according to claim 3, characterized in that: The bottom plate is provided with an adjusting pin which penetrates the bottom plate, the elastic member and the top plate.

5. The impact-resistant and shock-absorbing universal wheel according to claim 4, characterized in that: The elastic member is a spring.

6. The impact-resistant and shock-absorbing universal wheel according to claim 3, characterized in that: A first cotter pin is hinged between the first side plate and the wheel, a second cotter pin is hinged between the second side plates and the first side plate, a first slotted nut is arranged at the end of the first cotter pin, a second slotted nut is arranged at the end of the second cotter pin, the first slotted nut and the second slotted nut are located on the same side and are fixed in series using steel wire.

7. The impact-resistant and shock-absorbing universal wheel according to claim 2, characterized in that: The first side plates are provided in three groups, and elastic members are provided between two adjacent groups of the first side plates.

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