Detachable pressing rivet screw assembly

Abstract

The utility model provides a detachable pressing rivet screw assembly, which comprises a screw rod, one end of the screw rod is provided with a screw head, the detachable pressing rivet screw assembly also comprises a riveting pressing sleeve, the riveting pressing sleeve is sleeved on the screw rod, the riveting pressing sleeve and the screw rod form detachable connection, and the riveting pressing sleeve is provided with a spline tooth part. A detachable riveting sleeve is arranged on a screw, the screw and the riveting sleeve are combined to form a pressing rivet screw, and therefore the riveting sleeve can be pressed into a hole in a plate in advance, a protruding structure cannot be formed on the plate due to the fact that the screw is not installed, carrying and storage of the plate cannot be affected, and the screw is installed again when used.

Description

Technical Field

[0001] The utility model relates to the technical field of fasteners, in particular to a detachable pressure rivet screw assembly. Background Art

[0002] Compression rivet screws are generally used in conjunction with plates. There is a hole on the plate. The screw has a screw rod and a screw head. The screw rod is inserted into the hole. There are convex teeth on the screw head. Under the action of external pressure, the screw head and the convex teeth are pressed into the plate, so that the screw is fixedly connected to the plate. In this way, it is equivalent to setting a screw on the plate, and other parts are connected to the screw on the plate.

[0003] refer to Figure 1 As shown, when the screw head is pressed into the plate, a fixed connection is formed between the screw head and the plate. Generally, the riveting operation is performed when in use. If the riveting operation is performed in advance to fix the screw on the plate, the screw protrudes from the plate, causing bumps and affecting the transportation and storage of the plate. Utility Model Content

[0004] In view of the problems pointed out in the background technology, the utility model proposes a detachable self-clinching screw assembly to solve the above technical problems.

[0005] The technical solution of the utility model is achieved in this way:

[0006] A detachable rivet screw assembly comprises a screw rod, one end of which is provided with a screw head, and a riveting sleeve, which is sleeved on the screw rod, the riveting sleeve and the screw rod form a detachable connection, and the riveting sleeve is provided with a flower tooth portion.

[0007] The utility model is further configured that the toothed portion is provided with teeth, and a plurality of teeth are arranged in the circumferential direction of the riveting sleeve.

[0008] The utility model is further configured that the riveting sleeve is threadedly connected to the screw rod, and an inner side wall of the riveting sleeve is provided with an internal thread.

[0009] The utility model is further configured that a protruding positioning portion is provided on the end surface of the riveting sleeve facing the screw head, and a positioning groove connected to the positioning portion is provided on the screw head.

[0010] The utility model is further configured that a square hole is provided in the middle of the riveting sleeve, and a block portion is provided at one end of the screw rod to be matched and connected with the square hole.

[0011] By adopting the above technical solution, the beneficial effects of the utility model are as follows:

[0012] The detachable self-clinching screw assembly provided by the utility model is provided with a detachable rivet sleeve on the screw, and the screw and the rivet sleeve are combined to form a self-clinching screw, so that the rivet sleeve can be pressed into the hole on the plate in advance. In this way, since the screw is not installed, no protruding structure will be formed on the plate, and the transportation and storage of the plate will not be affected. The screw can be installed when it is used. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0014] Figure 1 It is a structural schematic diagram of the prior art.

[0015] Figure 2 This is a structural schematic diagram of the first connection mode of the utility model.

[0016] Figure 3 This is an exploded schematic diagram of the first connection method of the utility model.

[0017] Figure 4 This is a structural schematic diagram of the second connection mode of the utility model.

[0018] Figure 5 This is a schematic diagram of the second connection method of the utility model. Figure 1 .

[0019] Figure 6 This is a schematic diagram of the second connection method of the utility model. Figure 2 .

[0020] Figure 7 This is a structural schematic diagram of connection mode 3 of the utility model.

[0021] Figure 8 This is an exploded schematic diagram of the third connection mode of the utility model.

[0022] Description of the reference numerals in the accompanying drawings: screw rod 1 , screw head 2 , riveting sleeve 3 , flower tooth portion 4 , flower teeth 41 , positioning portion 51 , positioning groove 52 , square hole 61 , block portion 62 . DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] For reference Figure 1-8 The utility model is described as follows:

[0025] A detachable rivet screw assembly includes a screw, the screw includes a screw rod 1, and a screw head 2 is provided at one end of the screw rod 1. It also includes an annular rivet sleeve 3, which is sleeved on the screw rod 1, and the rivet sleeve 3 and the screw rod 1 form a detachable connection. The rivet sleeve 3 is provided with a toothed portion 4, and the toothed portion 4 is provided with teeth 41, and a plurality of teeth 41 are arranged in the circumferential direction of the rivet sleeve 3. By adopting the above technical solution, the screw and the rivet sleeve 3 are connected and inserted into the hole on the plate, and pressure is applied to the screw head 2 to press the rivet sleeve 3 into the plate to form a fixed connection structure, and the screw is detachable. After riveting, the connection between the rivet sleeve 3 and the screw becomes tight due to deformation, so that the removal of the screw requires a certain amount of force. Usually, a screw with higher structural strength and hardness can be prefabricated to replace the ordinary screw and cooperate with the rivet sleeve 3 to perform riveting between the rivet sleeve 3 and the plate.

[0026] Regarding the connection method between the riveting sleeve 3 and the screw 1, this application provides the following three connection methods:

[0027] Connection method 1: The riveting sleeve 3 is threadedly connected to the screw rod 1, and an internal thread is provided on the inner wall of the riveting sleeve 3. The advantage of this connection method is that the screw will not fall off after being installed, but it is slightly more difficult to disassemble.

[0028] Connection method 2: A protruding positioning portion 51 is provided on the end surface of the riveting sleeve 3 facing the screw head 2. There are two positioning portions 51, which are cylindrical. The screw head 2 is provided with a positioning groove 52 that is adapted to connect with the positioning portion 51. The advantage of this connection method is that it is easy to disassemble.

[0029] Connection method three: a square hole 61 is provided in the middle of the riveting sleeve 3, and a block portion 62 is provided at one end of the screw rod 1 to fit the square hole 61. The advantage of this connection method is that the threaded structure on the screw rod 1 will not be damaged during riveting, and it is also easy to disassemble.

[0030] 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. A detachable self-clinching screw assembly, comprising a screw rod (1), one end of the screw rod (1) being provided with a screw head (2), characterized in that: It also comprises a riveting sleeve (3), wherein the riveting sleeve (3) is sleeved on the screw rod (1), the riveting sleeve (3) and the screw rod (1) form a detachable connection, and the riveting sleeve (3) is provided with a toothed portion (4).

2. The detachable self-clinching screw assembly according to claim 1, characterized in that: The toothed portion (4) is provided with toothed portions (41), and a plurality of toothed portions (41) are arranged in the circumferential direction of the riveting sleeve (3).

3. The detachable self-clinching screw assembly according to claim 1, characterized in that: The riveting sleeve (3) is threadedly connected to the screw rod (1), and an inner side wall of the riveting sleeve (3) is provided with an internal thread.

4. The detachable self-clinching screw assembly according to claim 1, characterized in that: A protruding positioning portion (51) is provided on the end surface of the riveting sleeve (3) facing the screw head (2), and a positioning groove (52) connected to the positioning portion (51) is provided on the screw head (2).

5. The detachable self-clinching screw assembly according to claim 1, characterized in that: A square hole (61) is provided in the middle of the riveting sleeve (3), and a square block portion (62) adapted to be connected to the square hole (61) is provided at one end of the screw rod (1).

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