CN112066120A - Three-piece pipe clamp and locking method thereof - Google Patents

Abstract

The invention discloses a three-piece pipe clamp and a locking method thereof, belonging to the technical field of connection of fire hose joints, wherein the pipe clamp comprises three pipe clamp bodies, inner hexagon screws and hexagon nuts; each pipe clamp body is of a one-third circular ring structure, one end of each pipe clamp body is provided with an inner hexagon screw mounting position, the other end of each pipe clamp body is provided with a hexagon nut mounting position, and an inner hexagon screw penetrates through the inner hexagon screw mounting position and then is connected with a hexagon nut at the hexagon nut mounting position of the adjacent pipe clamp body; the pipe clamp comprises a pipe clamp body and is characterized in that a clamping portion is arranged on the inner side of the pipe clamp body and comprises two first convex teeth, a second convex tooth is arranged between the two first convex teeth, and the distance from the first convex teeth to the circle center of the ring where the pipe clamp body is located is smaller than the distance from the second convex teeth to the circle center of the ring where the pipe clamp body is located. The locking method of the three-piece pipe clamp provided by the invention has the advantages that the hose joint has better sealing performance and is convenient to install.

Description

Three-piece pipe clamp and locking method thereof

Technical Field

The invention relates to the technical field of connection of fire hose joints, in particular to a three-piece pipe clamp and a locking method thereof.

Background

The three-piece pipe clamp is a clamping device frequently used in the connection work of fire hose joints, and as shown in figure 1, the existing three-piece pipe clamp has large gaps and is easy to cause leakage; the pipe clamp is easy to separate due to the absence of an anti-falling structure; the hexagonal nut is not self-limiting, so that the pipe clamp is inconvenient to mount. Therefore, it is desirable to provide a three-piece pipe clamp with better sealing performance, anti-dropping function and convenient installation.

Disclosure of Invention

The invention aims to provide a three-piece pipe clamp and a locking method thereof, which are used for solving the problems in the prior art and have better sealing performance and convenient installation.

In order to achieve the purpose, the invention provides the following scheme:

the invention provides a three-piece pipe clamp which comprises three pipe clamp bodies, inner hexagon screws and hexagon nuts, wherein the inner hexagon screws are arranged on the three pipe clamp bodies; the pipe clamp body is of a one-third circular ring structure, each pipe clamp body of the three-piece pipe clamp is in a 120-degree circular arc shape and is concentrically arranged in 360 degrees, one end of each pipe clamp body is provided with an inner hexagon screw mounting position, the other end of each pipe clamp body is provided with a hexagon nut mounting position, and the inner hexagon screw penetrates through the inner hexagon screw mounting position and then is connected with a hexagon nut at the hexagon nut mounting position of the adjacent pipe clamp body; the pipe clamp comprises a pipe clamp body and is characterized in that a clamping portion is arranged on the inner side of the pipe clamp body and comprises two first convex teeth, a second convex tooth is arranged between the two first convex teeth, and the distance from the first convex teeth to the circle center of a ring where the pipe clamp body is located is smaller than the distance from the second convex teeth to the circle center of the ring where the pipe clamp body is located.

Optionally, the socket head cap screw mounting position includes a counter bore which is obliquely arranged, and a first through hole which is communicated with the end part of one end of the pipe clamp body is formed in the inner wall of the counter bore.

Optionally, the hexagonal nut mounting position is provided with a 120-degree inclined plane groove, one side of the inclined plane groove is provided with a blocking surface, the other side of the inclined plane groove is provided with a second through hole communicated with the end portion of the other end of the pipe clamp body, and the first through hole and the second through hole of two adjacent pipe clamp bodies can be matched and aligned.

Optionally, the bevel groove includes a first bevel edge and a second bevel edge connected at an angle, and the first bevel edge and the second bevel edge can be respectively in close contact with two adjacent sides of the hexagon nut.

Optionally, an inner hexagonal groove is formed at the hexagonal end of the inner hexagonal screw.

The invention also discloses a locking method of the three-piece pipe clamp, which comprises the following steps:

(1) inserting a tail pipe into the hose until the groove of the tail pipe completely enters the hose, and enabling the mounting position of an inner hexagon screw of each pipe clamp body of the three-piece pipe clamp to be adjacent to the mounting position of a hexagon nut of the other pipe clamp body of the three-piece pipe clamp to surround the hose;

(2) the first convex tooth of the pipe clamp body corresponds to the groove of the tail pipe, the second convex tooth of the pipe clamp body corresponds to the convex tooth of the tail pipe, and then the hexagon socket head cap screw and the hexagon nut are installed;

(3) and applying torque clockwise by using a tightening tool, and tightening the socket head cap screws to finish the locking work of the three-piece pipe clamp.

Compared with the prior art, the invention has the following technical effects:

the three-piece pipe clamp and the locking method thereof disclosed by the invention reduce the connection gap of the pipe clamp bodies in pairs by improving the arc angle and the circumference of the pipe clamp bodies, thereby improving the connection tightness; the original installation position of the hexagon nut is changed into a self-limiting structure, so that the installation convenience is improved; the anti-falling performance of connection is improved by changing the structure of the convex teeth in the three-piece pipe clamp. The invention can be operated on site without equipment, and is convenient to replace and maintain. The leakage phenomenon can not occur due to the adoption of the winding mode, and the leakage phenomenon can not occur when the pipe clamp is screwed by the screw lock. The iron wire is easy to rust, so that the iron wire is broken after bearing pressure in the using process to cause injury accidents, and the pipe clamp is safer to use. The pipe clamp can be used for assembling and pressing more pressure than a winding and binding mode.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.

FIG. 1 is a schematic view of the overall structure of a prior art three-piece pipe clamp;

FIG. 2 is a schematic view of the overall structure of the three-piece pipe clamp of the present invention;

FIG. 3 is a schematic view of the clamp portion of the tube clamp of the present invention;

FIG. 4 is a schematic view of the mounting position of the hexagonal nut of the pipe clamp body according to the present invention;

FIG. 5 is a schematic view of a three-piece clamp connection according to the present invention;

wherein, 1 is the tail pipe, 2 is the pipe clamp body, 3 is the hose, 4 is the second recess, 5 is the third dogtooth, 6 is the hexagon nut, 7 is interior hexagon screw, 8 is first dogtooth, 9 is first recess, 10 is the second dogtooth, 11 is interior hexagon screw installation position, 12 is the counter bore, 13 is interior hexagon groove, 14 is first through-hole, 1 is the hexagon nut installation position, 16 is the second through-hole, 17 is the inclined plane groove, 18 is the fender face.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention aims to provide a three-piece pipe clamp and a locking method thereof, which are used for solving the problems in the prior art and have better sealing performance and convenient installation.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

The invention provides a three-piece pipe clamp, as shown in fig. 2-5, which comprises a three-piece pipe clamp body 2, an inner hexagon screw 7 and a hexagon nut 6, wherein the pipe clamp body 2 comprises a connecting part and a clamping part, the connecting part comprises an inner hexagon screw mounting position 11 and a hexagon nut mounting position 15, the inner hexagon screw mounting position 11 comprises a counter bore 12 and a first through hole 14, the hexagon nut mounting position 15 comprises a second through hole 16, an inclined plane groove 17 and a blocking surface 18, the clamping part comprises two first convex teeth 8, one second convex tooth 10 and two first grooves 9, and the two first grooves 9 are respectively positioned between the first convex teeth 8 and the second convex teeth 10. The diameter of the first convex tooth 8 is smaller than that of the third convex tooth 5 of the tail pipe 1 and larger than that of the second groove 4 of the tail pipe 1. The diameter of the second convex tooth 10 is larger than that of the third convex tooth 5 of the tail pipe 1. The width of the first convex tooth 8 is smaller than that of the second groove 4 of the tail pipe 1, and the width of the second convex tooth 10 is smaller than that of the third convex tooth 5 of the tail pipe 1.

When the connecting hose 3 is locked, an operator inserts the tail pipe 1 into the hose 3 until the second groove 4 of the tail pipe 1 completely enters the hose 3, the hexagon socket head cap screw 11 of the pipe clamp 2 is adjacent to the hexagon nut mounting position 15 of the other pipe clamp 2 in pairs, the three pipe clamps are concentrically arranged at 360 degrees to hold the hose 3 tightly, the first convex tooth 8 corresponds to the second groove 4 of the tail pipe 1, the second convex tooth 10 corresponds to the third convex tooth 5 of the tail pipe, the hexagon socket head cap screw 7 penetrates the first through hole 14 in the hexagon socket head cap screw mounting position 11 and penetrates the second through hole 16 of the hexagon nut mounting position 15 of the adjacent pipe clamp 2, the hexagon nut 6 is placed in the hexagon nut mounting position 15 and abuts against the blocking surface 18, and two adjacent sides of the hexagon nut 6 correspond to each other and the inclined plane grooves 17 are automatically limited to prevent the hexagon nut 6 from rotating. And (3) inserting a tightening tool into the inner hexagonal groove 13 of the inner hexagonal screw 7, applying torque clockwise, and tightening the inner hexagonal screw 7 to enable the inner hexagonal screw to be tightly connected with the adjacent hexagonal nut 6, so that the clamping work of the hose 3 is completed.

The principle and the implementation mode of the invention are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.

Claims (6)

1. A three-piece pipe clamp which is characterized in that: comprises three pipe clamps, inner hexagon screws and hexagon nuts; each pipe clamp body is of a one-third circular ring structure, one end of each pipe clamp body is provided with an inner hexagon screw mounting position, the other end of each pipe clamp body is provided with a hexagon nut mounting position, and the inner hexagon screw penetrates through the inner hexagon screw mounting position and then is connected with a hexagon nut at the hexagon nut mounting position of the adjacent pipe clamp body; the pipe clamp comprises a pipe clamp body and is characterized in that a clamping portion is arranged on the inner side of the pipe clamp body and comprises two first convex teeth, a second convex tooth is arranged between the two first convex teeth, and the distance from the first convex teeth to the circle center of a ring where the pipe clamp body is located is smaller than the distance from the second convex teeth to the circle center of the ring where the pipe clamp body is located.

2. The three-piece pipe clamp of claim 1, wherein: the inner hexagon screw mounting position comprises a counter bore which is obliquely arranged, and a first through hole communicated with the end part of one end of the pipe clamp body is formed in the inner wall of the counter bore.

3. The three-piece pipe clamp of claim 2, wherein: the hexagonal nut installation site comprises an inclined plane groove, one side of the inclined plane groove is provided with a blocking surface, the other side of the inclined plane groove is provided with a second through hole communicated with the end part of the other end of the pipe clamp body, and the first through hole and the second through hole of two adjacent pipe clamp bodies can be matched and aligned.

4. A three-piece pipe clamp as defined in claim 3, wherein: the inclined plane groove comprises a first inclined plane and a second inclined plane which are connected in an angled mode, and the first inclined plane and the second inclined plane can be respectively in close contact with two adjacent sides of the hexagonal nut.

5. The three-piece pipe clamp of claim 4, wherein: an inner hexagonal groove is formed in the hexagonal end of the inner hexagonal screw.

6. A locking method of a three-piece pipe clamp is characterized in that: the method comprises the following steps:

(1) inserting a tail pipe into the hose until the groove of the tail pipe completely enters the hose, and enabling the mounting position of an inner hexagon screw of each pipe clamp body of the three-piece pipe clamp to be adjacent to the mounting position of a hexagon nut of the other pipe clamp body of the three-piece pipe clamp to surround the hose;

(2) the first convex tooth of the pipe clamp body corresponds to the groove of the tail pipe, the second convex tooth of the pipe clamp body corresponds to the convex tooth of the tail pipe, and then the hexagon socket head cap screw and the hexagon nut are installed;

(3) and applying torque clockwise by using a tightening tool, and tightening the socket head cap screws to finish the locking work of the three-piece pipe clamp.

Images