Crimping tool for braided metal hose

Abstract

The utility model relates to the technical field of pipeline crimping, and discloses a crimping tool for a braided metal hose, which is characterized by comprising an electric hydraulic mechanism and a chuck, the chuck comprises a connecting piece and two symmetrically arranged rotating pieces, the rotating pieces are hinged with the connecting piece, the connecting piece is detachably connected with the electric hydraulic mechanism, and the connecting piece is detachably connected with the electric hydraulic mechanism. The clamping pieces are arranged in the embedding space, the polygonal grooves are formed in the clamping pieces, the diameters of the polygonal grooves can be of different specifications, the clamping pieces can be replaced, the clamping pieces of different specifications can be selected and matched according to the outer diameter of the pipeline, and the steps form limitation of the positions of the clamping pieces in the square grooves, so that after the two clamping pieces are installed, the clamping pieces can be conveniently and rapidly clamped. The two polygonal grooves can be opposite to each other, and position deviation does not exist between the two polygonal grooves.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline crimping, and more particularly to a crimping tool for a braided metal hose. Background Art

[0002] The gas pipe is a special pipe for conveying combustible gas. It is a metal gas hose that replaces the traditional rubber hose with a buckle. It can solve the defects of rubber hoses that are easy to fall off, easy to age, easy to be bitten by insects, and have a short practical life.

[0003] Pipe joints are connected at both ends of the gas pipe, and steel sleeves are pressed between the gas pipe and the pipe joints to form a sealed connection between the pipe joints and the gas pipe. The steel sleeves are pressed by a pipe crimping tool. Among them, the existing pipe crimping tools are not adaptable to the outer diameter of the pipe and are difficult to adapt to pipes of different models. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a crimping tool for a braided metal hose, which can better adapt to pipes of different models.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a crimping tool for a braided metal hose, comprising an electric hydraulic mechanism and a chuck, the chuck comprising a connecting piece and two symmetrically arranged rotating pieces, the rotating piece being hinged to the connecting piece, the connecting piece and the electric hydraulic mechanism being detachably connected, an embedding space being provided on one side where the two rotating pieces are close to each other, a clamping piece being fixedly connected in the embedding space, a polygonal groove being provided on the clamping piece, and the two polygonal grooves being arranged opposite to each other.

[0006] As a further improvement of the utility model, the embedding space includes a dovetail groove and a square groove, the dovetail groove is connected to the square groove, a dovetail section is formed on the clamping member, and the dovetail section is interference fit with the dovetail groove.

[0007] As a further improvement of the utility model, a step is formed in the square groove, and the clamping member further includes a positioning section, the positioning section and the dovetail section are integrally formed, and the positioning section abuts against the corresponding step.

[0008] As a further improvement of the present invention, an elastic member is arranged between the two rotating members.

[0009] As a further improvement of the present invention, the elastic member is a compression spring.

[0010] As a further improvement of the present invention, the electric hydraulic mechanism includes a housing and a hydraulic rod, wherein the hydraulic rod is fixedly connected to the housing, and an end of the hydraulic rod extends out of the housing.

[0011] As a further improvement of the utility model, a fixing hole is provided on the connecting member, and two fixing members are formed on the top of the outer shell. The fixing members are fixedly connected to the connecting member through the fixing holes, and an accommodating space is formed between the two fixing members, and the width of the accommodating space is greater than the width of the rotating member.

[0012] As a further improvement of the present invention, the end of the hydraulic rod is hemispherical.

[0013] The beneficial effects of the utility model are as follows: in the utility model, a clamping piece is arranged in the embedded space, and a polygonal groove is opened on the clamping piece. The diameter of the polygonal groove can have different specifications, and the clamping piece can be replaced. Clamping pieces of different specifications are selected according to the outer diameter of the pipe. The step forms a limitation on the position of the clamping piece in the square groove, so that after the two clamping pieces are installed, the two polygonal grooves can be directly opposite to each other, and there is no position offset between the two polygonal grooves. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the chuck in the utility model;

[0015] Figure 2 It is a structural schematic diagram of the clamping member in the utility model;

[0016] Figure 3 It is a structural schematic diagram of the embedded space in the utility model.

[0017] Figure numerals: 2, chuck; 21, connecting part; 211, fixing hole; 22, rotating part; 3, embedding space; 31, dovetail groove; 32, square groove; 33, step; 41, polygonal groove; 42, dovetail section; 43, positioning section. DETAILED DESCRIPTION

[0018] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. The same parts are represented by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "bottom surface" and "top surface", "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0019] Reference Figure 1As shown, a crimping tool for a braided metal hose of this embodiment includes an electro-hydraulic mechanism and a chuck 2, the chuck 2 includes a connecting member 21 and two symmetrically arranged rotating members 22, the rotating members 22 are hinged to the connecting member 21, the connecting member 21 and the electro-hydraulic mechanism are detachably connected, and an embedding space 3 is provided on one side of the two rotating members 22 close to each other, and the embedding space 3 provides an installation position for the clamping member;

[0020] A clamping piece is fixedly connected in the embedded space 3, and a polygonal groove 41 is opened on the clamping piece. Two polygonal grooves 41 are arranged opposite to each other, and the diameters of the polygonal grooves 41 can have different specifications. Clamping pieces of different specifications can be selected according to the outer diameter of the pipeline. After the pipeline is clamped, the steel sleeve is deformed, so that the outer side surface of the steel sleeve forms a polygonal structure, thereby increasing the clamping force of the steel sleeve.

[0021] Reference Figure 1 As shown, the embedded space 3 includes a dovetail groove 31 and a square groove 32. The dovetail groove 31 is connected to the square groove 32. A dovetail section 42 is formed on the clamping member. The dovetail section 42 is interference fit with the dovetail groove 31. The dovetail groove 31 forms a positioning for the dovetail section 42, so that the clamping member will not move laterally, thereby increasing the stability of the clamping member.

[0022] Reference Figure 1 As shown, a step 33 is formed in the square groove 32, and the clamping member also includes a positioning section 43. The positioning section 43 and the dovetail section 42 are integrally formed, and the positioning section 43 abuts against the corresponding step 33. The step 33 forms a limit to the position of the clamping member in the square groove 32, so that after the two clamping members are installed, the two polygonal grooves 41 can form a direct opposition, and there is no position offset between the two polygonal grooves 41.

[0023] Reference Figure 1 As shown, an elastic member is provided between the two rotating members 22, and the elastic member is a compression spring. The user rotates the two rotating members 22 by external force, so that the tail ends of the two rotating members 22 are close to each other and the head ends are away from each other, so that the two clamping members move away from each other, and the pipe can be placed between the two polygonal grooves 41;

[0024] In the absence of external force, under the action of the restoring force of the elastic member, the two rotating members 22 are reset, so that the two clamping members clamp the pipe. At this time, the steel sleeve outside the pipe does not deform.

[0025] The hydraulic rod in the electric hydraulic mechanism moves upward and contacts the tail of the rotating member 22, driving it to rotate, so that the two clamping members approach each other, clamping the steel sleeve and the pipe, causing the steel sleeve to deform.

[0026] The electric hydraulic mechanism includes a shell and a hydraulic rod. The hydraulic rod is fixedly connected to the shell, and the end of the hydraulic rod extends out of the shell. The electric hydraulic mechanism also includes a power supply, which supplies power to the hydraulic rod to realize the telescopic function of the hydraulic rod.

[0027] A fixing hole 211 is formed on the connecting member 21, and two fixing members are formed on the top of the housing. The fixing members are fixedly connected to the connecting member 21 through the fixing holes 211. An accommodating space is formed between the two fixing members. The width of the accommodating space is greater than the width of the rotating member 22. When the user holds the rotating member 22 by external force and drives the rotating member 22 to rotate, the tails of the two rotating members 22 are close to each other. The accommodating space provides a rotation space for the tails of the rotating member 22, so that the tails of the rotating member 22 can rotate without interference.

[0028] In addition, the accommodating space also provides a space for the hydraulic rod to move upward, so that the end of the hydraulic rod can abut against the rear end of the rotating member 22.

[0029] The end of the hydraulic rod is hemispherical, and the inner side of the rotating member 22 is arc-shaped, and the arc shape is against the hemispherical shape. When the hydraulic rod moves upward, it can better drive the rotating member 22 to rotate, thereby realizing the clamping function of the steel sleeve.

[0030] The above are only preferred implementations of the utility model. The protection scope of the utility model is not limited to the above embodiments. All technical solutions under the idea of ​​the utility model belong to the protection scope of the utility model. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the utility model should also be regarded as the protection scope of the utility model.

Claims

1. A crimping tool for a braided metal hose, characterized in that: The invention comprises an electric hydraulic mechanism and a chuck (2), wherein the chuck (2) comprises a connecting member (21) and two symmetrically arranged rotating members (22), wherein the rotating member (22) is hinged to the connecting member (21), and the connecting member (21) and the electric hydraulic mechanism are detachably connected, and an embedding space (3) is provided on one side of the two rotating members (22) close to each other, and a clamping member is fixedly connected in the embedding space (3), and a polygonal groove (41) is provided on the clamping member, and the two polygonal grooves (41) are arranged opposite to each other.

2. A crimping tool for a braided metal hose according to claim 1, characterized in that: The embedding space (3) comprises a dovetail groove (31) and a square groove (32), the dovetail groove (31) being connected to the square groove (32), a dovetail section (42) being formed on the clamping member, and the dovetail section (42) being interference fit with the dovetail groove (31).

3. A crimping tool for a braided metal hose according to claim 2, characterized in that: A step (33) is formed in the square groove (32), and the clamping member further comprises a positioning section (43). The positioning section (43) and the dovetail section (42) are integrally formed, and the positioning section (43) abuts against the corresponding step (33).

4. A crimping tool for a braided metal hose according to claim 1, characterized in that: An elastic member is arranged between the two rotating members (22).

5. A crimping tool for a braided metal hose according to claim 4, characterized in that: The elastic member is a compression spring.

6. A crimping tool for a braided metal hose according to claim 1, characterized in that: The electric hydraulic mechanism comprises a housing and a hydraulic rod. The hydraulic rod is fixedly connected in the housing, and an end of the hydraulic rod extends out of the housing.

7. A crimping tool for a braided metal hose according to claim 6, characterized in that: The connecting member (21) is provided with a fixing hole (211), and two fixing members are formed on the top of the housing. The fixing members are fixedly connected to the connecting member (21) through the fixing holes (211), and an accommodating space is formed between the two fixing members. The width of the accommodating space is greater than the width of the rotating member (22).

8. The crimping tool for a braided metal hose according to claim 6, characterized in that: The end of the hydraulic rod is hemispherical.

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