CN211951138U - Square nut - Google Patents

Abstract

The utility model provides a square nut belongs to machinery. The nut comprises a body and a secondary fixing structure, wherein the body is square and is provided with a first penetrating internal thread hole, the secondary fixing structure comprises at least one fixed seat, the fixed seat is connected with the body, a second penetrating internal thread hole is formed in the fixed seat, the secondary fixing structure also comprises at least one screw shaft, and the screw shaft can be in threaded connection with the second internal thread hole; wherein, the outer wall of the body is provided with an operation part for the function of a spanner. The nut solves the problems of poor connection stability and the like of the existing square nut.

Description

Square nut

Technical Field

The utility model belongs to the field of machinery, a square nut is related to.

Background

The nut is a part screwed together with a bolt or a screw to play a role in fastening, and is widely used in various fields. Stainless steel nuts, copper nuts and alloy nuts can be divided according to different materials, and hexagonal nuts, octagonal nuts and the like can be divided according to shapes.

In addition, the nut can be divided into a square nut according to the shape, which is different from the traditional hexagon nut, the square nut is matched with a square bolt, the wrench is not easy to slip when being clamped, the problems that the traditional hexagon nut and the traditional octagon nut are easy to slip and corners are easy to wear are effectively solved, the nut is commonly used in frequent dismounting occasions, the bottom of the existing square nut is generally provided with an embedded positioning part, the pre-installation of the square nut can be realized by pre-embedding the positioning part, the subsequent loosening can be reduced, but in practice, in combination with the application environment of the square nut, the phenomenon of vibration separation of the square nut is still ubiquitous, for example, the utility model with application number 2017213879849, application date 2017, 10 and 26, and named as the square nut with the limiting boss describes a square nut with the limiting boss, which comprises a nut base body, wherein a bearing surface of the nut base body matched with a connecting piece is provided with a plurality of welding points protruding along the axial direction; four apex angle positions of nut base member are the fillet, and fillet position side protrusion is outside in four sides of nut base member to pass through circular arc transition smooth connection with four sides of nut base member, the side is less than the minimum distance that lies in the lateral surface to the center of fillet both sides to the radial maximum distance to the center of nut base member all around, makes nut base member side be the curved surface structure. According to the welding device, welding allowance can be provided through the welding point protruding on the bearing surface, the welding connection strength is high, the conical welding point can be matched with the contact surface of the connecting piece to provide positioning, and the welding connection precision is improved; the square extension section of opposite side for bearing the face can provide pre-buried installation location, and welded connection intensity is high, and the connection effect is good. However, the square nut does not have an additional connecting structure with the connected object, so that the square nut is easy to loosen under the vibration condition, and the connecting structure fails.

The present application is proposed to solve the above problems.

Disclosure of Invention

The utility model aims at the above-mentioned problem that exists among the prior art, provide the square nut, this formula nut is favorable to improving nut self connection stability, reduces and breaks away from the hidden danger, has solved current square nut and has connected poor stability scheduling problem.

The purpose of the utility model can be realized by the following technical proposal: the square nut is characterized by comprising a body and a secondary fixing structure, wherein the body is square and is provided with a first penetrating internal thread hole, the secondary fixing structure comprises at least one fixing seat, the fixing seat is connected with the body, a second penetrating internal thread hole is formed in the fixing seat, and the secondary fixing structure further comprises at least one screw shaft which can be in threaded connection with the second internal thread hole;

wherein, the outer wall of the body is provided with an operation part for the function of a spanner.

Generally, the fixing seat and the body are integrally formed, and the first internal threaded hole is used for connecting a bolt. Inferior solid structure possesses two kinds of connected modes as supplementary fixed knot structure, and the first kind is for connecting earlier, does not connect the bolt earlier in the first internal thread hole in the nut promptly, in the screw of the screw axis screw in by the connector in the structure of inferior solid, realizes that the body is fixed with being connected of connector, then link to each other bolt and first internal thread hole can. The second mode is the after-connection, namely, the bolt is connected with the first internal thread hole firstly to realize the fixation of the body, and then the body is connected with the connected object by utilizing the secondary fixation structure. In practice, two ways can be selected according to the actual installation environment. The spanner is used in the operation portion, realizes the rotation to the body, and the existence of fixing base does not hinder to have the operation portion on the body, and fixing base and operation portion coexist on the body promptly. This nut still has secondary solid structure as supplementary connection structure after with the bolt fastening, can weaken the vibration influence by very big degree, maintains the stability of nut. The end part of the screw shaft is provided with a cross groove or a straight groove, and the disassembling tool acts on the cross groove or the straight groove to realize the disassembly of the screw shaft. When this nut receives the vibration, under the effect of inferior solid structure, under multistage threaded connection's effect, the body can not take place to become flexible basically, and the locking nature of body has been strengthened to very big degree.

In the square nut, the fixed seat is connected to the bottom of the circumferential edge of the body.

The fixing seat and the body are welded or integrally formed, and the fixing seat is located at the bottom of the circumferential edge of the body, so that the processing is convenient.

In the square nut, the number of the fixed seats is four, and the fixed seats are respectively positioned at the bottoms of the four edges at the periphery of the body.

In practice it may be from 1 to N, N being greater than 1.

In the square nut, the first internal thread hole and the second internal thread hole are arranged in parallel in axial direction.

In the square nut, the fixing seat is L-shaped.

Namely, the inner wall of each fixed seat is respectively positioned on the adjacent surface of the body.

In the square nut, the bottom of the fixed seat is provided with an embedded support leg protruding out of the bottom of the body.

The embedded support is embodied in a first type of connection mode, when the first type of connection mode is adopted, the embedded support is inserted into a matching groove on the surface of a connected object, the stabilizing effect is realized, and meanwhile, the limiting force between the embedded support and the matching groove can play a certain limiting effect when the square nut is subsequently vibrated.

In the square nut, the embedded support legs are triangular prisms.

In practice, the embedded support legs can also be in other shapes.

In the square nut, the top of the body is integrally formed with an annular gasket.

The annular gasket plays a role in preventing abrasion and reduces abrasion generated when the two parts are contacted.

In the square nut, the operating part is arranged between the top of the body and the fixed seat.

In the square nut, the length of the second internal thread hole is smaller than the length of the screw shaft.

Namely, the connected object is provided with a thread fixing hole in threaded connection with the screw shaft, and the screw shaft enters the second internal thread hole after the screw shaft is rotated.

Compared with the prior art, the nut has the following advantages:

1. this nut passes through the solid structural design of inferior, can very big degree weaken the vibration influence, maintains the stability of nut, and under multistage threaded connection's effect, the body can not take place to become flexible basically, and very big degree has strengthened the locking nature of body.

2. This nut passes through pre-buried stabilizer blade design, makes pre-buried stabilizer blade insert by the matching inslot on connector surface, realizes stabilizing effect, makes the square nut can play certain restrictive force with the spacing power between the matching groove at pre-buried stabilizer blade when subsequently receiving the vibration simultaneously.

Drawings

Fig. 1 is a perspective view of the nut of the present embodiment.

Fig. 2 is a perspective view of another angular configuration of the nut of the present invention.

Fig. 3 is a plan view of the present nut.

Fig. 4 is a bottom view of the present nut (excluding the threaded shaft).

Fig. 5 is a sectional view showing the structure of the nut of the present embodiment.

List of reference numerals

In the figure, 1, a body;

1a, a first internal threaded hole;

1b, an operation part;

1c, an annular gasket;

2. a fixed seat;

2a, a second internal threaded hole;

2b, embedding support legs;

3. a screw shaft.

Detailed Description

As shown in fig. 1 to 5, the nut of the present invention includes a body 1 and a secondary fixing structure, wherein the body 1 is square and is provided with a first through internal threaded hole 1a, the secondary fixing structure includes at least one fixing seat 2, the fixing seat 2 is connected to the body 1, the fixing seat 2 is provided with a second through internal threaded hole 2a, the secondary fixing structure further includes at least one screw shaft 3, and the screw shaft 3 can be connected to the second internal threaded hole 2a by screw thread; wherein, the outer wall of the body 1 is provided with an operation part 1b for wrench action. Generally, the fixing base 2 and the body 1 are integrally formed, and the first internal threaded hole 1a is used for connecting a bolt. Inferior solid structure possesses two kinds of connected modes as supplementary fixed knot structure, and the first kind is for connecting earlier, does not connect the bolt earlier for first internal thread hole 1a in the nut, in the screw of being connected the screw 3 screw in the solid structure of inferior, realizes that body 1 is fixed with being connected of being connected, then link to each other bolt and first internal thread hole 1a can. The second mode is the after-connection, namely, the bolt is firstly connected with the first internal thread hole 1a to realize the fixation of the body 1, and then the body 1 is connected with the connected object by utilizing the secondary fixing structure. In practice, two ways can be selected according to the actual installation environment. The spanner acts on the operation part 1b to realize the rotation of the body 1, and the existence of the fixed seat 2 does not obstruct the existence of the operation part 1b on the body 1, namely the fixed seat 2 and the operation part 1b coexist on the body 1. This nut still has secondary solid structure as supplementary connection structure after with the bolt fastening, can weaken the vibration influence by very big degree, maintains the stability of nut. The end part of the screw shaft 3 is provided with a cross groove or a straight groove, and the disassembling tool acts on the cross groove or the straight groove to realize the disassembly of the screw shaft 3. When this formula nut receives the vibration, under the effect of inferior solid structure, under multistage threaded connection's effect, body 1 can not take place to become flexible basically, and the very big degree has strengthened body 1's locking nature.

Specifically, the fixing seat 2 is connected to the bottom of the circumferential edge of the body 1. Fixing base 2 and body 1 are welding or integrated into one piece, and fixing base 2 is located 1 circumference edge bottom of body and makes processing convenient. The four fixing seats 2 are respectively positioned at the bottoms of the four edges at the periphery of the body 1. In practice it may be from 1 to N, N being greater than 1. The first internal thread hole 1a and the second internal thread hole 2a are arranged in parallel in axis. The fixed seat 2 is L-shaped. I.e. the inner wall of each holder 2 is located on the adjacent surface of the body 1.

Specifically, the bottom of the fixing base 2 is provided with an embedded leg 2b protruding out of the bottom of the body 1. The embedded support leg 2b is embodied in a first connection mode, when the first connection mode is adopted, the embedded support is inserted into a matching groove on the surface of a connected object, the stabilizing effect is realized, and meanwhile, the limiting force between the embedded support leg 2b and the matching groove can play a certain limiting effect when the square nut is subsequently vibrated. The embedded support legs 2b are triangular prisms. In practice, the embedded leg 2b may have other shapes. An annular gasket 1c is integrally formed on the top of the body 1. The annular gasket 1c plays a role in preventing abrasion and reduces abrasion generated when the two parts are contacted. An operation part 1b is arranged between the top of the body 1 and the fixed seat 2. The length of the second internally threaded hole 2a is smaller than the length of the screw shaft 3. That is, the object to be connected has a screw fixing hole to be screwed with the screw shaft 3, and the screw shaft 3 enters the second female screw hole 2a after the screw shaft 3 has been rotated.

Details, structures, dimensions and principles not mentioned in the present application are all known in the art or can be obtained by simple selection of those skilled in the art, and are not described in detail.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims (10)

1. The square nut is characterized by comprising a body and a secondary fixing structure, wherein the body is square and is provided with a first penetrating internal thread hole, the secondary fixing structure comprises at least one fixing seat, the fixing seat is connected with the body, a second penetrating internal thread hole is formed in the fixing seat, and the secondary fixing structure further comprises at least one screw shaft which can be in threaded connection with the second internal thread hole;

wherein, the outer wall of the body is provided with an operation part for the function of a spanner.

2. The square nut of claim 1, wherein the fixed seat is connected to a bottom of the peripheral edge of the body.

3. The square nut as claimed in claim 1 or 2, wherein the number of the fixing bases is four and is located at the bottom of four edges of the body.

4. A square nut according to claim 1 or 2, wherein the first and second internally threaded holes are arranged with their axes parallel.

5. The square nut of claim 1 or 2, wherein the fixing base is L-shaped.

6. The square nut as claimed in claim 1 or 2, wherein the bottom of the fixing base has pre-embedded legs protruding from the bottom of the body.

7. The square nut of claim 6, wherein the embedded legs are triangular prisms.

8. The square nut of claim 1, 2 or 7, wherein the body top is integrally formed with an annular washer.

9. The square nut of claim 1, 2 or 7, wherein the operating portion is located between the top of the body and the fixed seat.

10. The square nut of claim 1, 2 or 7, wherein the length of the second internally threaded bore is less than the length of the threaded shaft.

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