A connecting structure based on a rubber matrix embedded wing type nut and a manufacturing method thereof

Abstract

The application provides a connecting structure based on a wing-shaped nut embedded in a rubber base and a manufacturing method, which comprises a connecting piece, a connecting screw, a rubber base and a wing-shaped nut. The wing-shaped nut is embedded and fixed in the rubber base. The connecting piece and the rubber base are threadedly connected with the wing-shaped nut through the connecting screw, so that stable connection is realized. The wing-shaped nut is embedded and fixed in the rubber base by using an auxiliary part including a fixing screw, a fixing base plate and an outer sheath through a specific process. The wing-shaped nut is stably embedded in the rubber part, the inclined surface platform of the connecting piece is designed, and finally the stable connection between the rubber part structure and other structures is ensured, and the disassembly and replacement are simple and convenient.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of connecting structure and rubber part, and mainly relates to a connecting structure based on a wing-shaped nut embedded in a rubber base and a manufacturing method. BACKGROUND

[0002] For the connection between structure parts with different material properties, especially when there is rubber in the structure part, the easy deformation of the rubber makes it difficult to achieve stable connection with other structure parts through mechanical connection. The common way is to achieve the connection of different structure parts through fastening clamps or through gluing. The fastening clamps will occupy space and make the overall structure complex. The gluing method will make the implementation process complex. When a large area is bonded, it is easy to have uneven bonding, air bubbles and other phenomena. After the bonding is completed, it is difficult to replace the structure part.

[0003] When considering the connection between structure parts and rubber parts, considering the replacement of rubber structure parts and the convenience of connection, a metal structure can be embedded in the rubber base through gluing. The embedded metal structure is usually a nut. The contact area between the nut and the rubber base is limited. In the case of large torque, there is no other constraint form between the nut and the rubber base except the bonding surface, which is easy to cause debonding, resulting in the separation of the nut and the rubber and the damage of the structure part.

[0004] The existing technology has the following disadvantages: there is no embedded connection structure inside the rubber part, or the embedded connection structure is usually a nut. However, when the nut is subjected to a large external torque in the rubber part, it is easy to cause debonding of the bonding surface between the nut and the rubber, resulting in the separation of the nut and the rubber and the damage of the structure part. SUMMARY

[0005] The present application aims to overcome the shortcomings of the prior art and provide a connecting structure based on a wing-shaped nut embedded in a rubber base and a manufacturing method. The metal structure can be stably embedded in the rubber part. The inclined platform design of the connecting part ensures the stable connection between the rubber structure and other structures, and the disassembly and replacement are simple and convenient.

[0006] The purpose of the present application is achieved by the following technical solutions.

[0007] In one aspect, the present application provides a connecting structure based on a wing-shaped nut embedded in a rubber base, which comprises a connecting part, a connecting screw, a rubber base and a wing-shaped nut. The wing-shaped nut is embedded and fixed inside the rubber base. The connecting part and the rubber base are threadedly connected with the wing-shaped nut through the connecting screw, thereby achieving stable connection.

[0008] Further, a plurality of mounting holes for cooperating with the connecting screw are arranged on the connecting part, and a plurality of mounting ears for connecting with other external components are arranged on the side edge of the connecting part.

[0009] Further, the mounting ear is provided with a threaded hole and a through hole, wherein the threaded hole is used for connecting the connecting member with the structure member in contact with the front surface, and the through hole is used for connecting the connecting member with the structure member in contact with the back surface.

[0010] Further, the mounting hole is in a straight cylinder form at the contact surface with the rubber base, and is in a counter-sunk hole form away from the rubber base, and the angle of the inclined surface of the counter-sunk hole is consistent with the angle of the inclined surface of the connecting screw, so as to realize the close connection of the two structures.

[0011] Further, the depth of the inclined surface of the counter-sunk hole is greater than the depth of the inclined surface of the connecting screw, so that the top of the connecting screw is completely sunk into the connecting member after the connecting screw is connected with the wing nut.

[0012] In another aspect, the application provides a manufacturing method of the connecting structure based on the wing nut embedded in the rubber base, comprising the following steps:

[0013] Step 1: determining the size, quantity and interval distribution distance of the wing nut according to the size of the connecting member and the rubber base, and the related factors of the connecting strength;

[0014] Step 2: passing the fixing screw through the fixing base plate and threadedly connecting the fixing screw with the wing nut, covering the outer sheath on the other positions of the fixing screw and the wing nut which are not connected, and threadedly connecting the outer sheath with the fixing screw through the thread on the inner surface, so as to form an assembly;

[0015] Step 3: performing rubber vulcanization treatment on the assembly above the fixing base plate, so as to vulcanize the wing nut in the rubber base;

[0016] Step 4: removing the fixing screw, the fixing base plate and the outer sheath;

[0017] Step 5: opening a hole on the connecting member, and threadedly connecting the connecting screw with the wing nut through the mounting hole of the connecting member.

[0018] Further, before Step 2, the outer surface of the wing nut is first subjected to sand blasting and decontamination treatment, and then the treated wing nut is brushed with primer.

[0019] Further, in Step 2, the outer sheath is made of metal material, and the outer surface in contact with the rubber base is coated with an anti-adhesion material, so as to avoid adhesion with the rubber base.

[0020] Further, in Step 5, the specific steps of opening a hole on the connecting member are as follows:

[0021] Step 1, a mounting hole is formed on the connecting piece, the mounting hole is in a straight cylinder form at the hole in contact with the rubber base body, the hole is a counterbore at the hole away from the rubber base body, and the inclined surface of the counterbore is roughened; the angle of the inclined surface of the counterbore is consistent with the angle of the inclined surface of the connecting screw, and the depth of the inclined surface of the counterbore is greater than the depth of the inclined surface of the connecting screw, so that the top of the connecting screw is completely sunk into the connecting piece after the connecting screw is connected with the wing nut;

[0022] Step 2, a threaded hole and a through hole are formed on the mounting ear of the connecting piece.

[0023] The beneficial effects of the present application are:

[0024] 1, the wing nut is adopted, and the wing nut is embedded and fixed in the rubber base body. Compared with the conventional nut, the wing type structure of the wing nut is in contact with the rubber, which can expand the bonding area and constrain the rubber, so that the wing nut will not rotate in the rubber base body under a large torque, and the wing nut is embedded in the rubber base body by gluing and vulcanization, so that the stable connection between the wing nut and the rubber base body can be maintained. At the same time, based on the wing nut, the connecting piece is designed to realize the stable connection between different materials.

[0025] 2, the auxiliary part includes a fixing screw, a fixing base plate and an outer sleeve, the fixing screw is fixed with the wing nut through the fixing base plate, the wing nut is embedded and fixed in the rubber base body by a special process, and the space left after the fixing screw and the outer sleeve are removed is used for assembling the connecting screw, so that the problem of difficult embedding and fastening of the wing nut in the rubber base body is solved.

[0026] 3, in the present application, the outer surface of the wing nut is sandblasted and roughened, and the thread of the wing nut is protected during the process to prevent damage to the thread during sandblasting and affect the connection between the wing nut and the connecting screw.

[0027] 4, the fixing screw and the wing nut are not connected to other positions, and the outer sleeve is coated, the outer sleeve is made of metal material and the outer surface in contact with the rubber base body is coated with an anti-adhesion material, which can avoid adhesion with the rubber base body, and the inner surface of the outer sleeve has threads, which can realize connection with the fixing screw.

[0028] 5, the connecting piece adopts an inclined surface platform design, the mounting hole position is designed to contact the inclined edge of the connecting screw, the contact area is increased, the contact stress intensity is reduced, and the reliability is enhanced. BRIEF DESCRIPTION OF DRAWINGS

[0029] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art or ordinary skills, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the structure of the present invention.

[0031] Figure 2 for Figure 1 Top view of the connecting component.

[0032] Figure 3 for Figure 1 A sectional view of the connecting component.

[0033] Figure 4 This is a cross-sectional view of the wing-shaped nut fixing structure during the manufacturing process of this invention.

[0034] Explanation of reference numerals in the attached drawings: 1. Connector; 1-1. Mounting ear; 1-2. Mounting hole; 1-1-1. Threaded hole; 1-1-2. Through hole; 2. Connecting screw; 3. Rubber base; 4. Wing nut; 5. Fixing base plate; 6. Fixing screw; 7. Outer sheath. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0036] Example: Figure 1 As shown, a connection structure based on an embedded wing nut in a rubber matrix includes a connector 1, a connecting screw 2, a rubber matrix 3, and a wing nut 4. The wing nut 4 is embedded and fixed inside the rubber matrix 3. The connector 1 and the rubber matrix 3 are threadedly connected to the wing nut 4 by the connecting screw 2. The wing nut is embedded inside the rubber matrix to ensure a stable connection between the rubber matrix and the connector. This requires the wing nut to have high rigidity and to be fixed within the rubber matrix to prevent slippage or twisting during the connection between the connecting screw and the wing nut. The rubber matrix is ​​the component to be connected. The connecting screw's main function is to assemble the connector with the rubber matrix and cooperate with the connector to achieve a stable and reliable connection.

[0037] like Figures 2-3As shown, in the embodiment, the connecting piece 1 is provided with 3*4, i.e. 12 mounting holes 1-2 for cooperating with connecting screws 2, and the left and right sides of the connecting piece 1 are provided with four mounting ears 1-1, which are used to realize connection with other components. The mounting ears 1-1 are provided with threaded holes 1-1-1 and through holes 1-1-2, wherein the threaded holes 1-1-1 are used to facilitate connection of the connecting piece 1 with structural members in front contact, and the through holes 1-1-2 are used to facilitate connection of the connecting piece 1 with structural members in back contact.

[0038] In the embodiment, the mounting hole 1-2 is in a straight cylinder form at the contact surface with the rubber base, and the mounting hole 1-2 is in a countersunk hole form away from the rubber base, the angle of the inclined surface of the countersunk hole is consistent with the angle of the inclined surface of the connecting screw, and the two structures are tightly connected. The depth of the inclined surface of the countersunk hole should be greater than the depth of the inclined surface of the connecting screw, so that the top of the connecting screw 2 is completely sunk into the connecting piece 1 after the connecting screw 2 is connected with the wing nut 4.

[0039] The mechanism of the present application is that the present application has the ability to stably connect the rubber part with non-homogeneous structures. The wing nut is embedded in the rubber base by adhesive vulcanization, which can maintain stable connection with the rubber base; the connecting screw is connected with the wing nut to realize stable connection of the connecting piece and the rubber base; the connecting piece is designed with multiple mounting holes, and the mounting hole position is designed to contact with the inclined edge of the connecting screw, which increases the contact area, reduces the contact stress intensity, and enhances the reliability. At the same time, the design of the connecting piece realizes the stable connection of multiple structures.

[0040] The present embodiment proposes a manufacturing method of a connecting structure based on a wing nut embedded in a rubber base, which comprises the following steps:

[0041] Step 1, according to the size, connection strength and other factors of the connecting piece 1 and the rubber base 3, the size, number and interval distance of the wing nut 4 are determined.

[0042] Step 2, hole is opened on the rubber base, and the wing nut is vulcanized inside the rubber base. The specific process is as follows: (1) the outer surface of the wing nut is sandblasted and decontaminated, and the thread of the wing nut is protected to prevent damage during sandblasting, which affects the connection of the wing nut and the connecting screw; (2) the treated wing nut is brushed with primer, which realizes stable and tight connection with the rubber base; (3) the fixing screw 6 passes through the fixing base plate 5 and is threadedly connected with the wing nut 4, the fixing screw 5 and the wing nut 4 are wrapped with an outer sleeve 7, the outer sleeve is made of metal material and the outer surface in contact with the rubber base is coated with an anti-adhesive material to avoid adhesion with the rubber base; the outer sleeve 7 is threadedly connected with the fixing screw 6 through the inner thread; (4) the fixing screw is fixed with the wing nut through the fixing base plate, and the wing nut is vulcanized inside the rubber base. The specific assembly diagram is shown in Figure 4

[0043] Step 4, remove the fixing screw 6, the fixing base plate 5 and the outer sleeve 7;

[0044] Step 5, hole is opened on the connecting piece 1, the specific process is as follows: (1) the hole at the contact surface of the mounting hole 1-2 and the rubber base is in a straight cylinder form, the hole away from the rubber base is a countersunk hole, and the inclined surface of the countersunk hole is roughened, which mainly increases the friction between the connecting screw and the connecting structure; (2) the angle of the inclined surface of the countersunk hole is consistent with the angle of the inclined surface of the connecting screw, so that the two structures are tightly matched; (3) the depth of the inclined surface of the countersunk hole should be greater than the depth of the inclined surface of the connecting screw, so that the top of the connecting screw 2 is completely sunk into the connecting piece 1 after the connecting screw 2 is connected with the wing nut 4, so as to ensure the flatness of the connecting structure. (4) the connecting screw 2 passes through the mounting hole 1-2 of the connecting piece 1 and is threadedly connected with the wing nut 4, and the connecting screw is connected with the wing nut to realize the stable connection of the connecting piece and the rubber base.

[0045] Step 6, thread hole 1-1-1 and through hole 1-1-2 are opened on the mounting ear 1-1 of the connecting piece 1. Two types of holes are designed at the mounting ear position of the connecting piece, one is a threaded hole structure, which is beneficial to the stable connection of other structures and the connecting piece; the other is a through hole structure, which is convenient for the upper and lower connection of the connecting piece and other structures, and then the stable connection of other structures.

[0046] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any changes or replacements within the scope disclosed by the present application can be easily thought by those skilled in the art, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.​

Claims

1. A method for manufacturing a connecting structure based on a rubber matrix embedded with a profiled nut, characterized in that: The connecting structure based on the rubber matrix embedded wing nut comprises a connecting piece (1), a connecting screw (2), a rubber matrix (3) and a wing nut (4), the wing nut (4) is embedded and fixed inside the rubber matrix (3), the connecting piece (1) and the rubber matrix (3) are threadedly connected with the wing nut (4) through the connecting screw (2), so that stable connection is realized; a plurality of mounting holes (1-2) for cooperating with the connecting screw (2) are arranged on the connecting piece (1), and a plurality of mounting ears (1-1) for connecting with other components outside are arranged on the side of the connecting piece (1); The manufacturing method of the connecting structure based on the rubber matrix embedded wing nut comprises the following steps: Step 1, the size, number and interval distance of the wing nut (4) are determined according to the size of the connecting piece (1) and the rubber matrix (3), and the related factors of the connecting strength; Step 2, the fixing screw (6) is passed through the fixed base plate (5) and is threadedly connected with the wing nut (4), the fixing screw (6) and other positions not connected with the wing nut (4) are covered with the outer sleeve (7), the outer sleeve (7) is threadedly connected with the fixing screw (6) through the inner thread, so that the assembly is formed; Step 3, the assembly above the fixed base plate (5) is subjected to rubber vulcanization treatment, and the wing nut (4) is vulcanized in the rubber matrix (3); Step 4, the fixing screw (6), the fixed base plate (5) and the outer sleeve (7) are removed; Step 5, the connecting screw (2) is threadedly connected with the wing nut (4) through the mounting hole (1-2) of the connecting piece (1).

2. The method of claim 1, wherein the method further comprises: The threaded hole (1-1-1) is used for connecting the connecting piece (1) with the structure connected with the front surface, and the through hole (1-1-2) is used for connecting the connecting piece (1) with the structure connected with the opposite surface.

3. The method of claim 1, wherein the method further comprises: The hole at the contact surface of the mounting hole (1-2) and the rubber matrix is in a straight cylinder form, the hole of the mounting hole (1-2) away from the rubber matrix is a countersunk hole, the angle of the inclined surface of the countersunk hole is consistent with the angle of the inclined surface of the connecting screw, and the two structures are tightly connected. ​ 4. The method of claim 3, wherein the method further comprises: providing a rubber matrix; and embedding the wing nut into the rubber matrix. The depth of the inclined surface of the countersunk hole should be greater than the depth of the inclined surface of the connecting screw, so that the top of the connecting screw (2) is completely sunk into the connecting piece (1) after the connecting screw (2) is connected with the wing nut (4).

5. The method of claim 1, wherein the method further comprises: Before step 2, the outer surface of the wing nut (4) is subjected to sand blasting and decontamination treatment, and then the treated wing nut (4) is brushed with primer. ​ 6. The method of claim 1, wherein the method further comprises: In step 2, the outer sleeve (7) is made of metal material and the outer surface in contact with the rubber matrix is coated with an anti-adhesion material to avoid adhesion with the rubber matrix.

7. The method of claim 2, wherein the method further comprises: providing a rubber matrix; and providing a plurality of winged nuts embedded in the rubber matrix. In step 5, the specific steps of hole opening on the connecting piece (1) are as follows: Step 1, open mounting hole (1-2) on the connecting piece (1), the mounting hole (1-2) is in the form of a straight cylinder at the rubber base contact surface, the mounting hole (1-2) is a countersunk hole away from the rubber base surface, and the inclined surface of the countersunk hole is roughened; the angle of the inclined surface of the countersunk hole is consistent with the angle of the inclined surface of the connecting screw, and the depth of the inclined surface of the countersunk hole should be greater than the depth of the inclined surface of the connecting screw, so that the top of the connecting screw (2) is completely sunk into the connecting piece (1) after the connecting screw (2) is connected with the wing nut (4); Step 2, thread hole (1-1-1) and through hole (1-1-2) are opened on the mounting lug (1-1) of the connecting piece (1).

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