Connection with fool-proof design, roller assembly and leg assembly

Abstract

The utility model discloses a connecting piece, gyro wheel subassembly and foot stand subassembly with prevent stupid design, this connecting piece includes connecting piece body, and the middle part of connecting piece body is equipped with through -hole, and the ring circumference of connecting piece body is equipped with the recessed guide ring groove of through -hole, is provided with connecting protruding assembly and prevent stupid protruding assembly on connecting piece body, and connecting protruding assembly includes two connecting protrusions, and prevent stupid protruding assembly includes respectively setting first prevent stupid protrusion and second prevent stupid protrusion on the other two side walls of connecting piece body and not on the same straight line. The structure makes operating personnel can according to the relative position of second prevent stupid protrusion and first prevent stupid protrusion quick identification connecting piece's correct installation direction, need not rely on the careful distinction to guide ring groove to, thereby significantly improve gyro wheel subassembly's assembly efficiency, and effectively reduce the rate of defective goods because of direction misloading.

Description

Technical Field

[0001] This utility model relates to the field of tripod assembly technology, and in particular to connectors, roller assemblies and tripod assemblies with foolproof design. Background Technology

[0002] A tripod assembly typically includes a tripod body and casters mounted on its base. To ensure a reliable connection between the casters and the tripod body, the casters generally have a connecting shaft, which is then fastened to the base of the tripod via a connector fitted onto this connecting shaft. In existing technology, such connectors often employ a symmetrical design, with a through hole in the center for accommodating the connecting shaft, and four evenly distributed connecting protrusions around the circumference to engage with corresponding connecting grooves on the base of the tripod.

[0003] To facilitate the smooth screwing of the connecting shaft into the through hole, the connector has an outwardly flared guide groove machined around the bottom end of the through hole (i.e., the insertion end). This guide groove should be located at the bottom of the connector in the upright position to facilitate the insertion of the connecting shaft. However, due to the symmetrical structure of the connector, the guide groove is not easily visible, making it difficult for operators to quickly determine the installation direction during assembly. This necessitates repeated checks of the guide groove's position, leading to decreased assembly efficiency. More seriously, if the connector is incorrectly installed backwards (i.e., the guide groove is at the top), this defect is difficult to detect during routine inspection, causing defective products to flow into subsequent processes and significantly negatively impacting the overall yield rate of the production process. Utility Model Content

[0004] The purpose of this invention is to overcome the above-mentioned problems of the prior art and provide connectors, roller assemblies and bracket assemblies with foolproof design, which have the advantages of simple structure, high assembly efficiency and high assembly quality.

[0005] The objective of this utility model is mainly achieved through the following technical solutions:

[0006] A connector with a foolproof design includes a connector body, a through hole in the middle of the connector body, and a recessed guide groove around the through hole. The connector body is provided with a connecting protrusion assembly and a foolproof protrusion assembly. The connecting protrusion assembly includes two connecting protrusions respectively disposed on the two side walls of the connector body and located on the same straight line. The foolproof protrusion assembly includes a first foolproof protrusion and a second foolproof protrusion respectively disposed on the other two side walls of the connector body and not located on the same straight line. The first foolproof protrusion and the second foolproof protrusion are staggered with the two connecting protrusions around the circumference of the connector body, and the two connecting protrusions are symmetrically arranged relative to the first foolproof protrusion.

[0007] Furthermore, the eccentricity angle between the second anti-mistake protrusion and the first anti-mistake protrusion is 15°-20°.

[0008] A roller assembly includes a roller body and a connector as described in any of the preceding claims, wherein the top end of the roller body has a connecting shaft that can be threaded into the through hole.

[0009] When the connector is fitted onto the top end of the connecting shaft, the guide ring groove is located at the bottom of the connector body.

[0010] A tripod assembly includes a tripod body and a caster assembly as described above;

[0011] The bottom of the tripod body is provided with four connecting grooves, which can respectively connect and cooperate with the two connecting protrusions, the first anti-fooling protrusion and the second anti-fooling protrusion.

[0012] This invention offers the following advantages: By providing a first and a second anti-misalignment protrusion, and arranging them, along with two connecting protrusions, in a staggered manner at four positions along the circumferential direction of the connector body, and by setting the second anti-misalignment protrusion at a certain eccentric angle (e.g., 15°-20°) relative to the first anti-misalignment protrusion, an asymmetrical anti-misalignment structure is formed. This structure allows operators to quickly identify the correct installation direction of the connector based on the relative positions of the second and first anti-misalignment protrusions, without relying on detailed differentiation of the guide ring groove. This significantly improves the assembly efficiency of the roller assembly and effectively reduces the defect rate caused by incorrect installation.

[0013] During the assembly of the tripod components, if the connectors are oriented correctly, all protrusions (including the connecting protrusion, the first anti-mistake protrusion, and the second anti-mistake protrusion) can match the corresponding connecting grooves on the tripod body to achieve a reliable connection. If the orientation is incorrect, the second anti-mistake protrusion will not be able to fit into the corresponding groove, and the assembly cannot be completed. Operators can immediately identify the abnormal state, prevent defective products from flowing into subsequent processes, and ensure the overall product quality.

[0014] Furthermore, the eccentric angle is optimized within the range of 15°-20°, which can maintain the uniformity of the connection between the connector and the leg and the structural stability, while also taking into account the convenience of visual identification, thus achieving a balance between error-proof identification and mechanical performance. Attached Figure Description

[0015] To more clearly illustrate the embodiments of this utility model, the accompanying drawings used in describing the embodiments of this utility model will be briefly described below. Obviously, the drawings described below are merely some embodiments recorded in this utility model. Those skilled in the art can derive other drawings from the following drawings without any creative effort.

[0016] Figure 1 This is a structural schematic diagram of a specific embodiment of the tripod assembly described in this utility model;

[0017] Figure 2 This is a schematic diagram of a specific embodiment of the roller assembly described in this utility model;

[0018] Figure 3 This is a schematic diagram of a specific embodiment of the connector and roller body in the roller assembly described in this utility model;

[0019] Figures 4 to 5 This is a schematic diagram of a specific embodiment of the connector with a foolproof design according to the present invention;

[0020] Figure 6 This is a structural schematic diagram of a specific embodiment of the tripod body in the tripod assembly described in this utility model.

[0021] The component names corresponding to the reference numerals in the attached drawings are as follows: 1. Connector body, 2. Through hole, 3. Connecting protrusion, 4. First anti-foolproof protrusion, 5. Second anti-foolproof protrusion, 6. Guide ring groove, 7. Roller body, 8. Connecting shaft, 9. Leg body, 10. Connecting groove. Detailed Implementation

[0022] To enable those skilled in the art to better understand this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments described in this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] Example 1

[0024] like Figures 1 to 5 As shown, a connector with a foolproof design includes a connector body 1, a through hole 2 in the middle of the connector body 1, and a recessed guide ring groove 6 around the through hole 2. The connector body 1 is provided with a connecting protrusion assembly and a foolproof protrusion assembly. The connecting protrusion assembly includes two connecting protrusions 3 respectively disposed on the two side walls of the connector body 1 and located on the same straight line. The foolproof protrusion assembly includes a first foolproof protrusion 4 and a second foolproof protrusion 5 respectively disposed on the other two side walls of the connector body 1 and not located on the same straight line. The first foolproof protrusion 4 and the second foolproof protrusion 5 are staggered with the two connecting protrusions 3 around the circumference of the connector body 1, and the two connecting protrusions 3 are symmetrically arranged relative to the first foolproof protrusion 4.

[0025] With this configuration, the first anti-mistake protrusion 4, the second anti-mistake protrusion 5, and the two connecting protrusions 3 are arranged alternately in pairs on the four sides of the connector body 1. The second anti-mistake protrusion 5 is offset relative to the first anti-mistake protrusion 4 to facilitate quick identification of the correct assembly direction of the connector. This confirmation method eliminates the need to spend effort distinguishing the front and back of the connector body 1 during assembly, which can effectively improve assembly efficiency and reduce the defect rate.

[0026] In this embodiment, with the guide ring groove 6 located at the bottom end of the connector body 1 as a reference, the second anti-foolproof protrusion 5 can be offset to the right or to the left relative to the first anti-foolproof protrusion 4, such as... Figure 4 The diagram shows a rightward offset setting. During assembly, the assembly direction of the connector can be determined by observing the position of the second anti-misalignment protrusion 5 relative to the first anti-misalignment protrusion 4, thus improving assembly efficiency and quality.

[0027] Preferably, the eccentricity angle between the second anti-mistake protrusion 5 and the first anti-mistake protrusion 4 is 15°-20°. This angle ensures both the uniformity and stability of the connection between the connector and the tripod, and also facilitates quick identification by the operator.

[0028] like Figures 2 to 3 As shown, a roller assembly includes a roller body 7 and a connector as described in any of the preceding claims. The top end of the roller body 7 has a connecting shaft 8 that can be threaded into the through hole 2.

[0029] When the connector is fitted onto the top end of the connecting shaft 8, the guide ring groove 6 is located at the bottom of the connector body 1.

[0030] In this embodiment, the second anti-foolproof protrusion 5 and the first anti-foolproof protrusion 4 in the connector facilitate the operator's quick identification of the connector's orientation for assembling the roller assembly. The connector is sleeved on the top end of the connecting shaft 8.

[0031] like Figures 1 to 6 As shown, a tripod assembly includes a tripod body 9 and a roller assembly as described above;

[0032] The bottom of the tripod body 9 is provided with four connecting grooves 10, which can be connected and engaged with the two connecting protrusions 3, the first anti-fooling protrusion 4 and the second anti-fooling protrusion 5 respectively.

[0033] In this embodiment, the connection between the four connecting grooves 10 and the two connecting protrusions 3, the first anti-mistake protrusion 4, and the second anti-mistake protrusion 5 enables the connection between the roller assembly and the stand body 9. Furthermore, if the roller assembly is assembled correctly, the connector can be directly connected to the stand body 9. If the assembly is incorrect, the second anti-mistake protrusion 5 cannot match the corresponding connecting groove 10, thus preventing assembly. Therefore, the second anti-mistake protrusion 5 facilitates the operator's detection of whether the connector in the roller assembly is correctly assembled, enabling efficient rejection of defective products to prevent them from entering the next process.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A connector with a foolproof design, comprising a connector body (1), wherein a through hole (2) is provided in the middle of the connector body (1), and a recessed guide groove (6) is provided around the through hole (2) of the connector body (1), characterized in that: The connector body (1) is provided with a connecting protrusion assembly and a foolproof protrusion assembly. The connecting protrusion assembly includes two connecting protrusions (3) respectively disposed on the two side walls of the connector body (1) and located on the same straight line. The foolproof protrusion assembly includes two first foolproof protrusions (4) and second foolproof protrusions (5) respectively disposed on the other two side walls of the connector body (1) and not located on the same straight line. The first foolproof protrusions (4) and second foolproof protrusions (5) and the two connecting protrusions (3) are in an interlaced position on the circumference of the connector body (1), and the two connecting protrusions (3) are symmetrically arranged relative to the first foolproof protrusions (4).

2. The connector with a foolproof design according to claim 1, characterized in that: The second anti-foolproof protrusion (5) is eccentrically positioned relative to the first anti-foolproof protrusion (4) at an angle of 15°-20°.

3. A roller assembly, characterized in that: Includes a roller body (7) and a connector as described in any one of claims 1-2, wherein the top end of the roller body (7) has a connecting shaft (8) that can be threaded into the through hole (2). When the connector is fitted onto the top end of the connecting shaft (8), the guide ring groove (6) is located at the bottom of the connector body (1).

4. A tripod assembly, characterized in that: Includes the tripod body (9) and the roller assembly as described in claim 3; The bottom of the tripod body (9) is provided with four connecting grooves (10), which can be connected and engaged with the two connecting protrusions (3), the first anti-fooling protrusion (4) and the second anti-fooling protrusion (5) respectively.

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