High-strength bolt and nut structure for press

Abstract

The high-strength bolt and nut structure comprises a screw head, a threaded thick rod section, a threaded long rod section, a nut and an anti-skid round cushion block, the threaded thick rod section is in threaded connection with a screw hole located in the middle of the anti-skid round cushion block, and a strip-shaped key groove is formed in the bottom end of the surface of the threaded long rod section. And a positioning block part located on the nut extends into the strip-shaped key groove, and a rubber ring pad is installed on the periphery of the middle position of the top of the anti-skid round cushion block. The anti-loosening cushion block is reasonable in structural design, the thick threaded rod section is in threaded connection with the threaded hole in the anti-skidding round cushion block, and the direction of the threaded structure on the thick threaded rod section is opposite to that of the threaded structure on the long threaded rod section, so that anti-loosening structural stress is formed; and meanwhile, the connecting hole in the anti-skid round cushion block is fixedly connected with the connecting structure, and the positioning block located in the round hole in the nut is wedged into the strip-shaped key groove, so that the nut is prevented from loosening and rotating, and the high strength between the bolt nut and the connecting structure is guaranteed.

Description

Technical Field

[0001] The utility model relates to a high-strength bolt and nut structure for a press, belonging to the technical field of bolts and nuts for presses. Background Art

[0002] The bolts and nuts used in presses are subjected to frequent vibrations. The existing bolt and nut anti-loosening structure has poor performance, which leads to loosening, affects the connection strength, accelerates the wear between the structures, and causes safety accidents. Therefore, a high-strength bolt and nut structure for presses is proposed to address the above problems. Utility Model Content

[0003] The purpose of the utility model is to provide a high-strength bolt and nut structure for a press in order to solve the above-mentioned problem.

[0004] The utility model achieves the above-mentioned purpose through the following technical scheme: a high-strength bolt and nut structure for a press machine, comprising a screw head, a thick threaded rod section, a long threaded rod section, a nut and an anti-skid round pad, wherein the thick threaded rod section is threadedly connected to a screw hole located in the middle of the anti-skid round pad, a strip keyway is provided at the bottom end of the surface of the long threaded rod section, and a positioning block part located on the nut extends into the strip keyway, and a rubber ring pad is installed around the middle position of the top of the anti-skid round pad.

[0005] Furthermore, the direction of the thread structure on the thick threaded rod section is opposite to the direction of the thread structure on the long threaded rod section.

[0006] Furthermore, a circular hole is provided on the nut, and a positioning block portion is provided in the circular hole.

[0007] Furthermore, the positioning block is made of tin block material.

[0008] Furthermore, the edge surface of the anti-slip circular pad is distributed with connection holes.

[0009] Furthermore, a circular groove is provided on the annular surface of the anti-slip circular pad.

[0010] Compared with the prior art, the advantages of the utility model are: the thick threaded rod section is threadedly connected to the screw hole on the anti-slip circular pad, and the direction of the threaded structure on the thick threaded rod section is opposite to the direction of the threaded structure on the long threaded rod section, so as to form anti-loosening structural stress, and at the same time, the connection hole on the anti-slip circular pad is used to fix the connection with the connecting structure, and the positioning block in the circular hole on the nut is wedged into the strip keyway to prevent the nut from loosening, thereby ensuring the high strength between the bolt and nut and the connecting structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] 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.

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the structure of the anti-skid round pad of the utility model;

[0014] Figure 3 It is a schematic diagram of the overall local structure of the utility model.

[0015] In the figure: 1, screw head; 2, thick threaded rod section; 3, long threaded rod section; 31, strip keyway; 4, nut; 41, round hole; 42, positioning block; 5, anti-slip round pad; 51, round groove; 52, screw hole; 53, connecting hole; 54, rubber ring pad. DETAILED DESCRIPTION

[0016] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the embodiment described below is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment 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.

[0017] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0018] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0019] See also Figure 1-3As shown, a high-strength bolt and nut structure for a press machine includes a screw head 1, a threaded thick rod section 2, a threaded long rod section 3, a nut 4 and an anti-skid round pad 5, wherein the threaded thick rod section 2 is threadedly connected to a screw hole 52 located in the middle of the anti-skid round pad 5, a strip keyway 31 is provided at the bottom end of the surface of the threaded long rod section 3, and a positioning block 42 located on the nut 4 extends into the strip keyway 31, and a rubber ring gasket 54 is installed around the middle position of the top of the anti-skid round pad 5.

[0020] The direction of the thread structure on the thick threaded rod section 2 is opposite to that on the long threaded rod section 3; a circular hole 41 is provided on the nut 4, and a positioning block 42 is provided in the circular hole 41; the positioning block 42 is made of tin block; connecting holes 53 are distributed on the edge surface of the anti-slip circular pad 5; a circular groove 51 is provided on the annular surface of the anti-slip circular pad 5.

[0021] When the utility model is in use, the thick threaded rod section 2 is threadedly connected with the screw hole 52 located on the anti-skid circular pad 5, and the direction of the threaded structure on the thick threaded rod section 2 is opposite to the direction of the threaded structure on the long threaded rod section 3, so as to form an anti-loosening structural stress, and at the same time, the connection hole 53 on the anti-skid circular pad 5 is used to perform a fixed connection with the connecting structure, and the positioning block 42 located in the circular hole 41 on the nut 4 is wedged into the strip keyway 31 to prevent the nut from loosening, thereby ensuring the high strength between the bolt and nut and the connecting structure.

[0022] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-limiting from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0023] As described above, the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A high-strength bolt and nut structure for a press, characterized in that: The invention comprises a screw head (1), a thick threaded rod section (2), a long threaded rod section (3), a nut (4) and an anti-skid round pad (5); the thick threaded rod section (2) is threadedly connected to a screw hole (52) located in the middle of the anti-skid round pad (5); a strip keyway (31) is provided at the bottom end of the surface of the long threaded rod section (3), and a positioning block (42) located on the nut (4) extends into the strip keyway (31); and a rubber ring gasket (54) is installed around the middle position of the top of the anti-skid round pad (5).

2. A high-strength bolt and nut structure for a press according to claim 1, characterized in that: The direction of the thread structure on the thick threaded rod section (2) is opposite to the direction of the thread structure on the long threaded rod section (3).

3. A high-strength bolt and nut structure for a press according to claim 1, characterized in that: The nut (4) is provided with a circular hole (41), and a positioning block (42) is provided in the circular hole (41).

4. A high-strength bolt and nut structure for a press according to claim 1, characterized in that: The positioning block (42) is made of tin block material.

5. The high-strength bolt and nut structure for a press according to claim 1, characterized in that: The edge surface of the anti-slip circular pad (5) is provided with connection holes (53).

6. A high-strength bolt and nut structure for a press according to claim 1, characterized in that: A circular groove (51) is provided on the annular surface of the anti-slip circular pad (5).

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