Fixing clamp for sweat soldering of three-way PE (Poly Ethylene) pipeline

Abstract

The utility model relates to a three-way type PE pipeline hot melting welding fixing clamp which comprises an upper shell, a clamping block is fixedly installed at the bottom of the upper shell, a pull rod is connected to the inner wall of the clamping block in a sliding mode, a circular plate is fixedly installed on the outer wall of the pull rod, a second spring is movably connected to the outer wall of the pull rod in a sleeved mode, and a lower shell is connected to the outer wall of the circular plate in a sliding mode. And a pipe body is placed at the top of the lower shell. According to the three-way type PE pipeline hot melting welding fixing clamp, a pull rod is pulled through external force, a circular plate is driven by the pull rod to compress a second spring, the pull rod slides out of the inner wall of a clamping block, an upper shell drives the clamping block to be separated from the top of a lower shell, disassembly is achieved, and when the pull rod is released through the external force, the pull rod drives the circular plate to be inserted into the inner wall of the clamping block, and rapid pipeline fixing is achieved; the three-way pipe is fixed when the upper shell and the lower shell are connected, and the situation that the welding position of the pipe cracks, and the welding seam quality is affected is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of PE pipes, in particular to a fixing clamp for hot-melt welding of three-way PE pipes. Background Art

[0002] PE pipe hot melt tee is a type of PE pipe fitting and pipeline connector, used at the branch pipe of the main pipeline. Its connection method is to hot melt butt weld the tee to the PE pipe. It is widely used in industries such as gas, water supply and drainage, pharmaceuticals, and food hygiene.

[0003] Most of the existing fixing fixtures for hot-melt welding of PE pipes are suitable for straight-through pipes and cannot achieve rapid hot-melt welding of three-way pipes. In addition, during actual operation, it is difficult to effectively fix the outer wall of the three-way pipe fittings, resulting in cracks at the welding position between the pipe fittings and the pipe, affecting the welding quality. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the utility model provides a three-way PE pipe hot-melt welding fixing clamp, which has the advantages of simple operation and good clamping performance, and solves the problems raised by the above-mentioned background technology.

[0005] The utility model provides the following technical solutions: a fixing fixture for hot-melt welding of three-way PE pipes, comprising an upper shell and a lower shell arranged in an upper and lower manner, a clamping block fixedly installed on the bottom of the upper shell, a pull rod, a clamping block groove for placing the clamping block and a pull rod groove communicated with the clamping block groove are provided on the top of the lower shell; a pull rod hole is provided on the clamping block, the pull rod passes through the pull rod groove and is inserted into the pull rod hole, a circular plate is fixedly installed on the outer wall of the pull rod, a second spring is movably sleeved on the outer wall of the pull rod, and the circular plate and the second spring are arranged in the pull rod groove; an upper semicircular arc groove for placing the three-way PE pipe is provided at the bottom of the upper shell, a lower semicircular arc groove corresponding to the upper semicircular arc groove is provided on the top of the lower shell, and the upper semicircular arc groove is provided on the top of the lower shell. The groove and the lower semicircular groove form a three-way PE pipe groove; the three outer walls of the upper shell are fixedly installed with semicircular upper support plates, and the three outer walls of the lower shell are fixedly installed with semicircular lower support plates, the semicircular upper support plate and the semicircular lower support plate are spliced ​​into a cylindrical support plate, the inner wall of the semicircular lower support plate is fixedly installed with a cylinder, and a first spring is fixedly installed inside the cylinder, and a round rod is slidably connected inside the cylinder, and the round rod is located above the first spring. A semicircular lower splint is fixedly installed on the top of the round rod, and a semicircular upper splint corresponding to the semicircular lower splint is connected to the semicircular upper support plate, and the semicircular lower splint and the semicircular upper splint are spliced ​​into a cylindrical splint.

[0006] As a preferred technical solution of the present invention: a square groove is provided on the inner wall of the lower shell, and the inner wall of the square groove is matched with the outer wall of the block.

[0007] As a preferred technical solution of the present invention: one end of the first spring is fixedly connected to the bottom of the round rod, and the other end of the first spring is fixedly connected to the inner bottom of the cylinder.

[0008] As a preferred technical solution of the present invention: one end of the second spring is fixedly connected to the outer wall of the circular plate, and the other end of the second spring is closely attached to the inner wall of the pull rod groove.

[0009] As a preferred technical solution of the present invention: the number of the support plates and the number of the clamping plates are two each, and the two support plates and the clamping plates are symmetrically arranged with the straight pipe body of the three-way PE pipe trough as the center.

[0010] As a preferred technical solution of the present invention: the number of the card blocks is four, and the four card blocks are distributed at the four corners of the bottom of the upper shell, and the bottom of the upper shell overlaps the top of the lower shell.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. The fixing fixture for hot-melt welding of three-way PE pipes pulls the pull rod by external force, and uses the pull rod to drive the circular plate to compress the second spring. The pull rod slides out of the inner wall of the block, so that the upper shell drives the block to separate from the top of the lower shell, and disassembly is achieved. When the external force releases the pull rod, the pull rod drives the circular plate under the action of the second spring and inserts into the inner wall of the block to achieve quick installation, which is convenient for personnel to perform hot-melt welding on the tee of the PE pipe. When the upper shell and the lower shell are connected, the three-way pipe is fixed, making the welding operation convenient and easy, avoiding cracks at the pipe welding position and affecting the weld quality.

[0013] 2. When the three-way PE pipe hot-melt welding fixing clamp is connected to the PE pipe through the pipe body, the PE pipe is used to press the clamping plate, and the clamping plate compresses the first spring through the round rod, so that the clamping plate can clamp according to different pipe orifice diameters. The two support plates and the clamping plate are symmetrically arranged with the pipe body as the center, so that the support plates and the clamping plate can achieve a clamping effect on the pipe orifice of the pipe body, preventing the PE pipe from detaching from the outer wall of the pipe body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the first spring structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the second spring structure of the utility model;

[0017] Figure 4 This is a schematic diagram of the plywood structure of the utility model;

[0018] Figure 5 This is a schematic diagram of the lower shell structure of the utility model. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figure 1-5 A fixing fixture for hot-melt welding of a three-way PE pipe comprises an upper shell 1 and a lower shell 12 arranged in an upper and lower manner. A clamping block 5 is fixedly installed at the bottom of the upper shell 1, and a pull rod 2, a clamping block groove 13 for placing the clamping block 5 and a pull rod groove 14 communicating with the clamping block groove 13 are provided at the top of the lower shell; a clamping block 5 is fixedly installed at the bottom of the upper shell 1, and a pull rod hole is provided on the clamping block 5. The pull rod 2 passes through the pull rod groove 14 and is inserted into the pull rod hole. A circular plate 9 is fixedly installed on the outer wall of the pull rod 2, and a second spring 10 is movably sleeved on the outer wall of the pull rod 2. The circular plate 9 and the second spring 10 are arranged in the pull rod groove 14; an upper semicircular arc groove for placing the three-way PE pipe is provided at the bottom of the upper shell, and a lower semicircular arc groove corresponding to the upper semicircular arc groove is provided on the top of the lower shell 12. The upper semicircular arc groove and the lower semicircular arc groove form a three-way PE pipe groove; a pipe body 11 is placed in the three-way PE pipe groove. Semi-circular upper support plates 3.1 are fixedly mounted on the three outer walls of the upper shell 1, and semi-circular lower support plates 3.2 are fixedly mounted on the three outer walls of the lower shell 12. These upper and lower support plates 3.1 and 3.2 combine to form a cylindrical support plate 3. A cylinder 7 is fixedly mounted on the inner wall of the semi-circular lower support plate 3.2, within which a first spring 6 is fixedly mounted. A round rod 8 is slidably connected within the cylinder 7, positioned above the first spring 6. A semi-circular lower clamping plate 4.2 is fixedly mounted on top of the round rod 8. A semi-circular upper clamping plate 4.1, corresponding to the semi-circular lower clamping plate, is connected to the semi-circular upper support plate. The semi-circular lower clamping plate 4.2 and the semi-circular upper clamping plate 4.1 combine to form the cylindrical clamping plate 4.

[0021] In the above structure, by providing the upper shell 1 and the lower shell 12, the three-way pipe is fixed when the upper shell 1 and the lower shell 12 are connected, avoiding cracks at the pipe welding position and affecting the weld quality.

[0022] In a preferred embodiment, a square groove is formed on the inner wall of the lower shell 12 , and the inner wall of the square groove is matched with the outer wall of the clamping block 5 .

[0023] In the above structure, the inner wall of the square groove is adapted to the outer wall of the block 5, and the upper shell 1 is used to drive the block 5 to be placed on the inner wall of the lower shell 12, so that the upper shell 1 and the lower shell 12 are overlapped, which is convenient for personnel to assemble them.

[0024] In a preferred embodiment, one end of the first spring 6 is fixedly connected to the bottom of the round rod 8 , and the other end of the first spring 6 is fixedly connected to the inner wall of the cylinder 7 .

[0025] In the above structure, when the pipe mouth of the lower shell 12 is connected to the PE pipe, the PE pipe is used to press the clamp 4, and the clamp 4 compresses the first spring 6 through the round rod 8, so that the clamp 4 can clamp according to different pipe mouth diameters, thereby improving the use range of the equipment.

[0026] In a preferred embodiment, one end of the second spring 10 is fixedly connected to the outer wall of the circular plate 9 , and the other end of the second spring 10 is closely attached to the inner wall of the pull rod groove 14 .

[0027] In the above structure, the pull rod 2 is pulled by external force, and the pull rod 2 drives the circular plate 9 to compress the second spring 10. The pull rod 2 slides out of the inner wall of the block 5, so that the upper shell 1 drives the block 5 to separate from the top of the lower shell 12, thereby realizing disassembly. When the external force releases the pull rod 2, the pull rod 2 drives the circular plate 9 and inserts it into the inner wall of the block 5, realizing quick installation, making it convenient for personnel to inspect and repair the tube body 11.

[0028] In a preferred embodiment, the number of the support plates 3 and the clamping plates 4 is two, and the two support plates 3 and the two clamping plates 4 are symmetrically arranged with the tube body 11 as the center.

[0029] In the above structure, the two support plates 3 and the clamping plates 4 are symmetrically arranged with the tube body 11 as the center, so that the support plates 3 and the clamping plates 4 can clamp the tube opening of the tube body 11 to prevent the PE tube from detaching from the outer wall of the tube body 11.

[0030] In a preferred embodiment, there are four card blocks 5 , and the four card blocks 5 are distributed at the four corners of the bottom of the upper shell 1 , and the bottom of the upper shell 1 overlaps the top of the lower shell 12 .

[0031] In the above structure, four clamping blocks 5 are distributed at the four corners of the bottom of the upper shell 1 , and the four clamping blocks 5 are placed on the top of the lower shell 12 , so that the clamping blocks 5 ensure the stability of the connection and installation between the upper shell 1 and the lower shell 12 .

[0032] Working Principle: First, connect the tee pipe body 11 to the PE pipe and place it in the lower semicircular groove. Then, pull the tie rod 2 to overlap the bottom of the upper shell 1 with the top of the lower shell 12. Disassembly: Release the tie rod 2, and the upper shell 1 and lower shell 12 will be clamped together. Finally, weld the tee pipe and PE pipe together. By pulling the tie rod 2 with external force, the tie rod 2 drives the circular plate 9 to compress the second spring 10, and the tie rod 2 slides out of the inner wall of the block 5, allowing the upper shell 1 to drive the block 5 away from the top of the lower shell 12, completing disassembly. Installation: When the external force releases the pull rod 2, the pull rod 2 drives the circular plate 9 and inserts it into the inner wall of the block 5 to achieve quick installation, which is convenient for personnel to inspect and repair the pipe body 11. When the upper shell 1 and the lower shell 12 are connected, the three-way pipe is fixed to avoid cracks in the pipe welding position, affecting the weld quality and thus posing a safety hazard. When the pipe body 11 is connected to the PE pipe, the PE pipe is used to press the splint 4, and the splint 4 compresses the first spring 6 through the round rod 8, so that the splint 4 can be clamped according to different pipe mouth diameters, thereby improving the range of use of the equipment.

[0033] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A three-way PE pipe hot-melt welding fixture, comprising an upper shell (1) and a lower shell (12) arranged in an upper and lower manner, characterized in that: A clamping block (5) is fixedly mounted on the bottom of the upper shell (1), and a pull rod, a clamping block groove (13) for placing the clamping block (5), and a pull rod groove (14) communicating with the clamping block groove (13) are provided on the top of the lower shell; a pull rod hole is provided on the clamping block (5), and the pull rod (2) passes through the pull rod groove (14) and is inserted into the pull rod hole; a circular plate (9) is fixedly mounted on the outer wall of the pull rod (2), and a second spring (10) is movably sleeved on the outer wall of the pull rod (2), and the circular plate (9) and the second spring (10) are arranged in the pull rod groove (14); an upper semicircular arc groove for placing a three-way PE pipe is provided on the bottom of the upper shell, and a lower semicircular arc groove corresponding to the upper semicircular arc groove is provided on the top of the lower shell (12), and the upper semicircular arc groove and the lower semicircular arc groove form a three-way PE pipe groove; the three outer walls of the upper shell (1) are all fixedly mounted with A semicircular upper support plate (3.1), three outer walls of the lower shell (12) are fixedly installed with semicircular lower support plates (3.2), the semicircular upper support plate (3.1) and the semicircular lower support plate (3.2) are spliced ​​together to form a cylindrical support plate (3), the inner wall of the semicircular lower support plate (3.2) is fixedly installed with a cylinder (7), a first spring (6) is fixedly installed in the cylinder (7), a round rod (8) is slidably connected in the cylinder (7), the round rod (8) is located above the first spring (6), a semicircular lower splint (4.2) is fixedly installed on the top of the round rod (8), a semicircular upper splint (4.1) corresponding to the semicircular lower splint is connected to the semicircular upper support plate, and the semicircular lower splint (4.2) and the semicircular upper splint (4.1) are spliced ​​together to form a cylindrical splint (4).

2. A three-way PE pipe hot-melt welding fixture according to claim 1, characterized in that: One end of the first spring (6) is fixedly connected to the bottom of the round rod (8), and the other end of the first spring (6) is fixedly connected to the bottom of the cylinder (7).

3. The fixing fixture for hot-melt welding of a three-way PE pipe according to claim 1, characterized in that: One end of the second spring (10) is fixedly connected to the outer wall of the circular plate (9), and the other end of the second spring (10) is closely attached to the inner wall of the pull rod groove (14).

4. The fixing fixture for hot-melt welding of a three-way PE pipe according to claim 1, characterized in that: The number of the support plates (3) and the number of the clamping plates (4) are two each, and the two support plates (3) and the clamping plates (4) are symmetrically arranged with the straight pipe body of the three-way PE pipe groove as the center.

5. The fixing fixture for hot-melt welding of a three-way PE pipe according to claim 1, characterized in that: The number of the card blocks (5) is four, and the four card blocks (5) are distributed at the four corners of the bottom of the upper shell (1), and the bottom of the upper shell (1) overlaps with the top of the lower shell (12).

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