Special opening pulling device for gas collecting pipe

Abstract

The special opening pulling device comprises a base and a transverse plate installed on the upper side of the base, connecting pieces are arranged on the front side and the rear side of the transverse plate respectively, and oil cylinders are fixedly connected to the positions, close to the front side and the rear side, of the outer wall of the upper end of the base respectively. Push rods are fixedly connected between the interiors of the two oil cylinders and the connecting pieces, a pull rod is arranged on the lower side of the transverse plate, a drawing die is arranged on the lower side of the pull rod, a pipeline is arranged at the lower end of the base, and a vertically-through pipe hole is formed in the circular outer wall of the upper end of the pipeline. When the pull rod shakes greatly in the base, the pull rod collides with the buffer cushion in the shaking process, large noise generated when the pull rod collides with the inner wall of the base is avoided, the shaking amplitude can be reduced, the drawing die can keep the relatively stable position after being separated from a pipe hole, the adjusting time can be shortened, and the adjusting efficiency is improved. And the mouth pulling operation of the next pipe hole can be quickly carried out.

Description

Technical Field

[0001] The utility model belongs to the technical field related to gas collecting pipe tapping, and in particular relates to a special device for tapping a gas collecting pipe. Background Art

[0002] The special device for pulling out the mouth of the gas collecting pipe is a device used to install a pulling mouth on the gas collecting pipe. It is usually used in gas pipeline systems such as natural gas and coal gas. Pulling out the mouth refers to opening an outlet on the pipeline to facilitate the connection of other equipment or pipeline maintenance. However, after the pull rod pulls the pulling die out of the gas collecting pipe mouth, the pulling die will be detached from the gas collecting pipe mouth, and the positioning shaft can move horizontally on the cross plate. The pull rod will swing left and right under the restriction of the positioning shaft, causing the pulling cylinder to hit the base and produce a large collision noise. Utility Model Content

[0003] The purpose of the utility model is to provide a special device for pulling out the gas collecting pipe, so as to solve the problem proposed in the background technology that the pull rod will swing left and right under the restriction of the positioning shaft, causing the pull cylinder to hit the base and produce a large collision noise.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a special device for drawing out a gas collecting pipe, comprising a base and a horizontal plate installed on the upper side of the base;

[0005] Connecting pieces are provided on both the front and rear sides of the transverse plate;

[0006] The outer wall of the upper end of the base is fixedly connected to an oil cylinder near the front and rear sides respectively;

[0007] A push rod is fixedly connected between the interior of the two oil cylinders and the connecting piece, a pull rod is provided on the lower side of the horizontal plate, a drawing die is provided on the lower side of the pull rod, a pipe is provided at the lower end of the base, and a pipe hole is opened in the inner part of the circular outer wall of the upper end of the pipe.

[0008] Buffer pads are provided inside the base and on both the front and rear sides of the pull rod, and a plurality of springs are fixedly connected at equal distances between the outer walls at the front and rear ends of the base and the buffer pads.

[0009] Preferably, one side of the connection between the two buffer pads and the spring is fixedly connected to a fixing plate, and the outer wall of the right end of the fixing plate is fixedly connected to a positioning rod that passes rightward through the inside of the base to limit the moving direction of the fixing plate.

[0010] Preferably, a positioning hole for the positioning rod to pass through is opened inside the base, and a positioning plate is fixedly connected to the outer wall of the right end of the positioning rod to limit the movable position of the fixing plate.

[0011] Preferably, the two buffer pads are both made of rubber material, and the two buffer pads and the fixing plate are fixedly connected by bonding.

[0012] Preferably, the upper outer wall of the drawing die is fixedly connected with a connecting sleeve to threadably connect the drawing die and the drawing rod, and the front and rear outer walls of the transverse plate are fixedly connected with fixing blocks to limit the position of the connecting piece.

[0013] Preferably, a connecting rod is fixedly connected between the two fixing blocks and located on the upper side of the horizontal plate, and a fixing frame is fixedly connected to the outer wall of the upper end of the base.

[0014] Preferably, a limiting groove is provided inside the fixing frame to limit the up and down movement direction of the fixing block, and the positioning shaft can move forward and backward under the restriction of the transverse plate and under the push of external force.

[0015] Preferably, the pull rod can swing forward and backward under the restriction of the positioning axis, and the outer wall of the lower end of the base is arc-shaped.

[0016] Compared with the prior art, the present invention provides a special device for extracting the ends of a gas collecting pipe, which has the following beneficial effects:

[0017] By installing the buffer pad and spring, when the pull rod shakes significantly inside the base, it will hit the buffer pad during the shaking process, and the spring will store energy and perform buffering, thereby avoiding the pull rod from generating loud noise when hitting the inner wall of the base. At the same time, it can reduce the shaking amplitude, so that the drawing die can maintain a relatively stable position after it is out of the pipe hole, which can reduce the adjustment time and quickly perform the pulling operation of the next pipe hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The utility model is a structural schematic diagram of a special device for extracting the ends of a gas collecting pipe.

[0019] Figure 2 It is a schematic diagram of the partial structure of the pull rod area in a side view of the present invention.

[0020] Figure 3 It is a schematic diagram of the partial structure of the base area in a side view of the present invention.

[0021] In the figure: 1. Base; 2. Cylinder; 3. Push rod; 4. Connecting piece; 5. Fixing block; 6. Fixing frame; 7. Connecting rod; 8. Cross plate; 9. Positioning shaft; 10. Pull rod; 11. Pipe hole; 12. Pipeline; 13. Connecting sleeve; 14. Drawing die; 15. Buffer pad; 16. Fixing plate; 17. Spring; 18. Positioning rod; 19. Positioning hole; 20. Positioning plate. DETAILED DESCRIPTION

[0022] 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.

[0023] The utility model provides Figure 1-3 The device shown is a special device for drawing out the ends of a gas collecting pipe, comprising a base 1 and a horizontal plate 8 mounted on the upper side of the base 1;

[0024] Connecting members 4 are provided on both the front and rear sides of the transverse plate 8;

[0025] The upper outer wall of the base 1 is fixedly connected to the oil cylinder 2 near the front and rear sides respectively;

[0026] A push rod 3 is fixedly connected between the interior of the two oil cylinders 2 and the connecting piece 4, a pull rod 10 is provided on the lower side of the cross plate 8, a drawing die 14 is provided on the lower side of the pull rod 10, a pipe 12 is provided at the lower end of the base 1, and a pipe hole 11 is opened up and down inside the circular outer wall of the upper end of the pipe 12. When performing the extraction operation, the pipe 12 is first laid flat, the base 1 is placed on the pipe 12 for fixing, and then the pull rod 10 is lowered into the pipe hole 11 opened in the pipe 12, and then the drawing die 14 is fixed, and then the position of the pipe hole 11 is heated, and after heating to the required temperature, the oil cylinder 2 is turned on, and the oil cylinder 2 pushes the push rod 3 to drive the pull rod 10 to move the drawing die 14 upward and pull it out, thereby completing the extraction operation at the position of the pipe hole 11;

[0027] Buffer pads 15 are provided inside the base 1 and on the front and rear sides of the pull rod 10. A plurality of springs 17 are fixedly connected at equal distances between the outer walls of the front and rear ends of the base 1 and the buffer pads 15. When the drawing die 14 is pulled out from the tube hole 11, if the pull rod 10 shakes due to the strong pulling force, it will be buffered by the buffer pads 15 and the springs 17 and the position will be restricted to prevent the pull rod 10 from shaking too much.

[0028] like Figure 3 As shown, one side of the connection between the two buffer pads 15 and the spring 17 is fixedly connected to a fixing plate 16, and the right end outer wall of the fixing plate 16 is fixedly connected to a positioning rod 18 that passes through the inside of the base 1 to the right to limit the moving direction of the fixing plate 16. A positioning hole 19 is opened inside the base 1 for the positioning rod 18 to pass through, and the right end outer wall of the positioning rod 18 is fixedly connected to a positioning plate 20 to limit the movable position of the fixing plate 16.

[0029] By fixing the plate 16 and limiting the position between the buffer pad 15 and the spring 17, and when the pull rod 10 hits the buffer pad 15, the spring 17 will contract, causing the positioning rod 18 to move laterally inside the positioning hole 19 to adapt to the contraction distance of the spring 17, while maintaining the stability of the buffer pad 15 during transverse movement, and through the positioning plate 20, the distance of the spring 17 during reset can be limited to avoid the occurrence of a reset distance that is too large.

[0030] like Figure 3 As shown, the two buffer pads 15 are both made of rubber material, and the two buffer pads 15 and the fixing plate 16 are fixedly connected by bonding.

[0031] The soft rubber material can reduce the impact force and noise after the pull rod 10 hits, and stably buffer the shaking amplitude of the pull rod 10.

[0032] like Figure 1 and Figure 2 As shown, the upper outer wall of the drawing die 14 is fixedly connected with a connecting sleeve 13 to threadably connect the drawing die 14 and the drawing rod 10, and the front and rear outer walls of the cross plate 8 are fixedly connected with fixed blocks 5 to limit the position of the connecting member 4. A connecting rod 7 is fixedly connected between the two fixed blocks 5 and on the upper side of the cross plate 8, and a fixing frame 6 is fixedly connected to the upper outer wall of the base 1.

[0033] When fixing the drawing die 14, the connecting sleeve 13 at the upper end of the drawing die 14 and the pull rod 10 are screwed together to limit the position of the drawing die 14. When the cross plate 8 moves up and down, it is connected between the fixed block 5 and the connecting rod 7 to maintain stability during the up and down movement, and under the restriction of the limit groove opened on the fixed frame 6, the accurate direction of the up and down movement is guaranteed.

[0034] like Figure 1 As shown, a limiting groove is provided inside the fixing frame 6 to limit the up and down movement direction of the fixing block 5. The positioning shaft 9 can move forward and backward under the restriction of the horizontal plate 8 and under the push of external force. The pull rod 10 can swing forward and backward under the restriction of the positioning shaft 9. The outer wall of the lower end of the base 1 is arc-shaped.

[0035] The positioning shaft 9 can be pushed by external force to move left and right on the horizontal plate 8 to adapt to the positions of different pipe holes 11. The base 1 with an arc-shaped lower end can be better clamped on the pipe 12 for fixation.

[0036] The implementation principle of this embodiment is: when performing the pulling operation, first lay the pipe 12 flat, place the base 1 on the pipe 12 for fixation, then put the pull rod 10 down into the pipe hole 11 opened in the pipe 12, and then fix the upper drawing die 14, and then heat the position of the pipe hole 11. After heating to the required temperature, turn on the oil cylinder 2, and the oil cylinder 2 pushes the push rod 3 to drive the pull rod 10 to move the drawing die 14 up and pull it out, thereby completing the pulling operation at the position of the pipe hole 11. When the drawing die 14 is pulled out from the pipe hole 11, when the pull rod 10 shakes due to the large pulling force, it will be buffered by the buffer pad 15 and the spring 17, and the position will be restricted to avoid the pull rod 10 shaking too much.

[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A special device for drawing a gas collecting pipe, comprising a positioning shaft (9), a base (1), and a transverse plate (8) mounted on the upper side of the base (1); Connecting pieces (4) are provided on both the front and rear sides of the transverse plate (8); The upper outer wall of the base (1) is fixedly connected to an oil cylinder (2) near both the front and rear sides; A push rod (3) is fixedly connected between the interior of the two oil cylinders (2) and the connecting piece (4); a pull rod (10) is provided on the lower side of the horizontal plate (8); a drawing die (14) is provided on the lower side of the pull rod (10); a pipe (12) is provided at the lower end of the base (1); a pipe hole (11) is provided in the inner part of the circular outer wall of the upper end of the pipe (12); Its characteristics are: Buffer pads (15) are provided inside the base (1) and on both the front and rear sides of the pull rod (10), and a plurality of springs (17) are fixedly connected at equal distances between the front and rear outer walls of the base (1) and the buffer pads (15).

2. The special device for drawing the ends of a gas collecting pipe according to claim 1, characterized in that: One side of the connection between the two buffer pads (15) and the spring (17) is fixedly connected to a fixed plate (16), and the outer wall of the right end of the fixed plate (16) is fixedly connected to a positioning rod (18) that runs rightward through the inside of the base (1) to limit the moving direction of the fixed plate (16).

3. The dedicated device for extracting the ends of a gas collecting pipe according to claim 1, characterized in that: A positioning hole (19) for a positioning rod (18) to pass through is provided inside the base (1), and a positioning plate (20) is fixedly connected to the outer wall of the right end of the positioning rod (18) to limit the movable position of the fixing plate (16).

4. The dedicated device for removing the ends of a gas collecting pipe according to claim 1, characterized in that: The two buffer pads (15) are both made of rubber material, and the two buffer pads (15) and the fixing plate (16) are fixedly connected by bonding.

5. The dedicated device for drawing the ends of a gas collecting pipe according to claim 1, characterized in that: The upper outer wall of the drawing die (14) is fixedly connected with a connecting sleeve (13) to threadably connect the drawing die (14) and the drawing rod (10), and the front and rear outer walls of the transverse plate (8) are fixedly connected with fixing blocks (5) to limit the position of the connecting piece (4).

6. The device for removing the ends of a gas collecting pipe according to claim 5, characterized in that: A connecting rod (7) is fixedly connected between the two fixing blocks (5) and located on the upper side of the transverse plate (8), and a fixing frame (6) is fixedly connected to the upper outer wall of the base (1).

7. The dedicated device for drawing the ends of a gas collecting pipe according to claim 6, characterized in that: A limiting slot is provided inside the fixing frame (6) to limit the upward and downward movement direction of the fixing block (5); the positioning shaft (9) can move forward and backward under the restriction of the transverse plate (8) and under the push of an external force.

8. The dedicated device for extracting the ends of a gas collecting pipe according to claim 1, characterized in that: The pull rod (10) can swing forward and backward at an angle under the restriction of the positioning shaft (9), and the outer wall of the lower end of the base (1) is in an arc shape.

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