CN221097155U - Fixed movable joint bolt - Google Patents

Abstract

The utility model discloses a fixed movable joint bolt, which comprises a screw rod and a nut which are mutually matched, wherein the screw rod comprises a screw rod section, an optical axis section and an annular part, the screw rod section and the optical axis section are sequentially arranged from top to bottom, the surface of the screw rod section is provided with external threads, the optical axis section is positioned below the screw rod section, and the diameter of the optical axis section is smaller than that of the screw rod section; the lower end of the optical axis section is vertically provided with a movable groove along the radial direction, a pin is fixedly connected in the movable groove, and a clamping piece is movably connected on the pin; according to the utility model, the locking of the nut is realized through the clamping piece, so that the use firmness of the loose joint bolt is ensured; compared with the mode of drilling and adding pins on the studs, the fixing mode of the utility model is more firm, and the utility model can be repeatedly disassembled and assembled.

Description

Fixed movable joint bolt

Technical Field

The utility model relates to the field of fasteners, in particular to a fixed movable joint bolt.

Background

The movable joint bolt is also called an eyelet bolt in China and is widely applied to: the valve is often used on occasions or tools such as valve industries for disassembling connection, folding bicycles and baby carriages in the fields of high-temperature and high-pressure valves, pressure pipelines, fluid engineering, petroleum drilling and production equipment, oilfield equipment and the like, and has the functions of convenient and quick use of movable joint bolts and fastening connection with matched nuts, and has a wide application range.

For example, patent publication number CN219262919U discloses a movable joint bolt for petrochemical or mechanical installation, which comprises a screw, the outer wall of the screw is provided with threads, the interior of the screw is provided with a first cavity, one end of the first cavity is communicated with the outside, and a plurality of ventilation holes are formed in the first cavity.

According to the patent, after the movable joint bolt is installed, compressed air can be directly introduced into the first cavity and sprayed out from the plurality of air holes on the first cavity, so that liquid leaked at the joint of the threads and the installation hole is cleaned, the screw is effectively protected, and parts at two ends of the movable joint bolt are not required to be disassembled in the operation process, so that the operation is more convenient; however, the common movable joint bolts can be loosened after being used, safety accidents can occur after the movable joint bolts are used for a long time, the stability of the movable joint bolts used by large machines is very important, the use stability of the movable joint bolts needs to be ensured, and the use safety of the bolts is ensured.

Therefore, there is a need for an improvement in such a structure to overcome the above-mentioned drawbacks.

Disclosure of utility model

The present utility model is directed to a fixing bolt for solving the above-mentioned problems.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

The fixed movable joint bolt comprises a screw rod and a nut which are mutually matched, wherein the screw rod comprises a screw rod section, an optical axis section and an annular part, the screw rod section and the optical axis section are sequentially arranged from top to bottom, external threads are formed on the surface of the screw rod section, the optical axis section is positioned below the screw rod section, and the diameter of the optical axis section is smaller than that of the screw rod section; the lower end of the optical axis section is vertically provided with a movable groove along the radial direction, a pin is fixedly connected in the movable groove, and a clamping piece is movably connected on the pin; wherein the clamping piece is wholly in a strip shape, and a chute is arranged on the clamping piece along the length direction.

Further, the movable groove divides the optical axis section into two fan-shaped parts, one fan-shaped part is provided with a round groove at one side close to the movable groove, the other fan-shaped part is provided with a round hole, and the round hole and the round groove are coaxially arranged; the pin is inserted into the circular slot from the circular hole.

Furthermore, two clamping blocks which are arranged in a central symmetry mode are arranged on one side of the clamping piece.

Still further, one side of the fixture block is inclined, and the other side is vertical.

Still further, a plurality of clamping grooves are formed in the bottom end of the nut in a circular array, and the clamping grooves are matched with the clamping blocks.

Further, a semicircular groove is formed in the middle of the sliding groove upwards.

Compared with the prior art, the utility model has the beneficial effects that:

According to the utility model, the locking of the nut is realized through the clamping piece, so that the use firmness of the loose joint bolt is ensured; compared with the mode of drilling and adding pins on the studs, the fixing mode of the utility model is more firm, and the utility model can be repeatedly disassembled and assembled.

Drawings

Fig. 1 is a schematic view of a fixed joint bolt.

Fig. 2 is an elevation view of a fixed joint bolt.

Fig. 3 is a side view of a fixed joint bolt.

Fig. 4 is a cross-sectional view of a fixed joint bolt.

Fig. 5 is a partial enlarged view at a in fig. 4.

Fig. 6 is a schematic view of the structure of the threaded rod of the fixed joint bolt.

Fig. 7 is a schematic view of the structure of the clamping element in the fixed joint bolt.

Fig. 8 is a schematic view of the structure of a nut in a fixed joint bolt.

Fig. 9 is a schematic illustration of the structure of a fixed joint bolt to be installed.

Fig. 10 is a schematic view of a construction of a fixed joint bolt mounted on a mounting surface.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-10, a fixed joint bolt comprises a screw 1 and a nut 2 which are mutually matched,

The screw 1 comprises a screw section 101, an optical axis section 102 and a ring 103,

Wherein the annular part 103, the screw section 101 and the optical axis section 102 are sequentially arranged from top to bottom,

The surface of the screw section 101 is provided with external threads, the optical axis section 102 is positioned below the screw section 101, and the diameter of the optical axis section 102 is smaller than that of the screw section 101;

As shown in fig. 4-7, in this embodiment, a movable slot 104 is vertically formed at the lower end of the optical axis segment 102 along the radial direction, the movable slot 104 divides the optical axis segment 102 into two sectors 105, one sector 105 is provided with a circular slot 106 near one side of the movable slot 104, the other sector 105 is provided with a circular hole 107, and the circular hole 107 and the circular slot 106 are coaxially arranged; a pin 108 is fixedly connected in the round hole 107 and the round groove 106,

When the pin is installed, the pin is inserted through the outer side of the round hole 107 until the end part of the pin 108 falls into the round groove 106; the pin 108 is movably connected with a clamping piece 109;

The clamping piece 109 is integrally strip-shaped, a chute 110 is formed in the clamping piece 109 along the length direction, and a semicircular groove 111 is formed in the middle of the chute 110 upwards; two clamping blocks 112 which are arranged in a central symmetry manner are arranged on one side of the clamping piece 109,

As shown in fig. 7, in the present embodiment, one side of the clamping block 112 is disposed obliquely, and the other side is disposed vertically;

A plurality of clamping grooves 113 are formed in the bottom end of the nut 2 in a circular array, and the clamping grooves 113 and the clamping blocks 112 are matched;

As shown in fig. 9-10, when the bolt of the present embodiment is put into use, firstly, the clamping piece 109 is hung on the pin 108 through one end of the chute 110, so that the clamping piece 109 and the screw 1 are in an approximately horizontal state; then the screw 1 is screwed through the threaded hole of the mounting surface 900, then the nut 2 is screwed on the bolt 1 at the other end of the mounting surface 900, after the nut completely passes through the optical axis section 102, the clamping piece 109 is rotated, the clamping piece 109 is moved to clamp the pin 108 in the semicircular groove 111, then the nut 2 is slightly rotated downwards to clamp the clamping block 112 in the clamping groove 113, thereby preventing the nut 2 from rotating, and finally the screw 1 and the nut 2 are rotated to enable the upper end of the nut 2 to be tightly attached to the mounting surface 900; at this time, the nut 2 is supported by the mounting surface 900 upwards, and the downward rotation is prevented by the engaging member 109 from rotating the nut 2 in the horizontal direction, thereby preventing the nut 2 from being downward.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "upper", "lower", "inner", "outer", "left", "right", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in place when the inventive product is used, or are directions or positional relationships conventionally understood by those skilled in the art, are merely for convenience of describing the present utility model and for simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance. In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, terms such as "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Claims (6)

1. The fixed movable joint bolt comprises a screw rod and a nut which are mutually matched, and is characterized in that the screw rod comprises a screw rod section, an optical axis section and an annular part, wherein the annular part, the screw rod section and the optical axis section are sequentially arranged from top to bottom, external threads are formed on the surface of the screw rod section, the optical axis section is positioned below the screw rod section, and the diameter of the optical axis section is smaller than that of the screw rod section; the lower end of the optical axis section is vertically provided with a movable groove along the radial direction, a pin is fixedly connected in the movable groove, and a clamping piece is movably connected on the pin; wherein the clamping piece is wholly in a strip shape, and a chute is arranged on the clamping piece along the length direction.

2. The fixed joint bolt according to claim 1, wherein the movable groove divides the optical axis section into two sectors, one of the sectors is provided with a circular groove on one side close to the movable groove, the other sector is provided with a circular hole, and the circular hole and the circular groove are coaxially arranged; the pin is inserted into the circular slot from the circular hole.

3. The fixed joint bolt according to claim 1, wherein two clamping blocks which are arranged in a central symmetry manner are arranged on one side of the clamping piece.

4. A fixed joint bolt according to claim 3, wherein one side of the clamping block is arranged obliquely and the other side is arranged vertically.

5. The fixed joint bolt according to claim 4, wherein a plurality of clamping grooves are formed in a circular array on the bottom end of the nut, and the clamping grooves are matched with the clamping blocks.

6. The fixed joint bolt according to claim 1, wherein a semicircular groove is formed in the middle of the chute.