Special tool for assembling glass fiber reinforced plastic mortar pipes

Abstract

The utility model discloses a special tool for assembling glass fiber reinforced plastic mortar pipes, and mainly relates to the technical field of pipeline engineering. Comprising a pipe clamp, a supporting frame with an annular tray and two chain blocks, the pipe clamp is fixed to an installed glass fiber reinforced plastic sand pipe through bolts, the supporting frame is arranged at the rear end of the glass fiber reinforced plastic sand pipe to be installed, a pipe hoop is located at the rear end of the installed glass fiber reinforced plastic sand pipe, and the annular tray abuts against the rear end face of the glass fiber reinforced plastic sand pipe to be installed. The pipe clamp is symmetrically provided with first lifting lugs used for installing the chain block, the supporting frame is provided with a plurality of second lifting lugs used for being connected with the hanging belt, one end of the chain block is connected with the first lifting lugs, the other end of the chain block is connected with the middle of the hanging belt, and the two ends of the hanging belt are fixed to the supporting frame. According to the utility model, the stress on the pipeline to be installed is more balanced, the propelling is smoother, and the pipeline assembly is more accurate and efficient.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline engineering, in particular to a special tool for assembling glass fiber reinforced plastic sand-filled pipes. Background Art

[0002] FRP sand-filled pipe is a new type of composite material made of resin as the matrix material, glass fiber and its products as the reinforcing material, and quartz sand as the filling material. It is widely used in the chemical industry, drainage projects and seawater pipeline projects due to its excellent corrosion resistance, light weight and high strength, and quick installation.

[0003] Two adjacent sections of FRP sand-filled pipes are connected to each other through a pipe clamp, and the rubber ring lined in the pipe clamp plays an effective sealing role. The existing FRP sand-filled pipe installation technology selects two hand chain hoists as traction power. One end of the hand chain hoist is connected and fixed to the channel steel at the end of the pipe to be installed (two-point force), and the other end is connected to the sling locked on the installed pipe. The pipe to be installed is pushed into the pipe clamp at the end of the installed pipe by manually tightening the two hand chain hoists to complete the assembly of the two sections of the pipe. However, the existing technology pushes the FRP sand-filled pipe to be installed into the pipe clamp through two points on the channel steel. The annular pipe is only stressed through two points, which often produces an eccentric load phenomenon. If the eccentric load is seriously adjusted and not timely, the pipe to be installed will enter the pipe clamp at an inclined angle, and the sealing rubber ring on the inside of the pipe clamp will move forward with the pipe to be installed, which is commonly known as "curling", resulting in damage to the sealing rubber ring of the pipe clamp and loss of effective sealing effect. Rework and replacement of a new pipe clamp are required, which is time-consuming and labor-intensive and cannot guarantee the quality of the pipeline installation entity. In addition, due to the smooth surface of the FRP sand-filled pipe, the slings fixed on the installed pipes often "slip", and cannot effectively serve as a fixed fulcrum, making it impossible for the hand winches on both sides to be tightened to allow the pipe to be installed to quickly enter the pipe clamp, reducing construction efficiency and extending the construction period. Utility Model Content

[0004] The purpose of the utility model is to solve the problems existing in the prior art and provide a special tool for assembling glass fiber reinforced plastic sand-filled pipes, which can ensure that the force on the pipes to be installed is more balanced and the advancement is smoother, so as to achieve more accurate and efficient pipe assembly.

[0005] In order to achieve the above purpose, the utility model is implemented through the following technical solutions:

[0006] A special tool for assembling FRP sand-filled pipes, comprising a pipe clamp, a support frame with an annular tray and two hand hoists, the pipe clamp being fixed to the installed FRP sand-filled pipe by bolts, the support frame being placed at the rear end of the FRP sand-filled pipe to be installed, the pipe clamp being located at the rear end of the installed FRP sand-filled pipe, the annular tray abutting against the rear end face of the FRP sand-filled pipe to be installed, the pipe clamp being symmetrically provided with first lifting ears for installing hand hoists, a plurality of second lifting ears for connecting slings being provided on the support frame, one end of the hand hoist being connected to the first lifting ear, and the other end being connected to the middle of the sling, and both ends of the sling being fixed to the support frame.

[0007] Preferably, an arc-shaped first rubber pad is provided on the inner wall of the pipe clamp.

[0008] Preferably, the annular tray is provided with an annular second rubber pad at one end close to the glass fiber reinforced plastic sand-filled pipe to be installed.

[0009] Preferably, a plurality of positioning blocks are provided in an annular array on the annular tray, the positioning blocks abut against the outer peripheral wall of the FRP sand-filled pipe to be installed, and a third rubber pad is provided on the end surface of the positioning block close to one end of the FRP sand-filled pipe to be installed.

[0010] Preferably, the positioning block is an L-shaped plate, which is fixed to the annular tray by screws, and waist-shaped holes adapted to the screws are provided on the annular tray and / or the positioning block, and the waist-shaped holes are arranged along the axial direction of the annular tray.

[0011] Preferably, the support frame is a tic-tac-toe structure composed of four support rods, and second lifting ears are arranged at both ends of each support rod.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. The pipe clamp of the utility model is a ring-shaped design structure, which ensures that the glass fiber reinforced plastic sand-filled pipe to be installed is 360 degrees balanced and pushed forward synchronously, thereby improving the accuracy of pipeline docking.

[0014] 2. The utility model is provided with rubber pads on the support frame and the pipe clamp, which is beneficial to the protection of the finished glass fiber reinforced plastic sand-filled pipe.

[0015] 3. When the support frame of the utility model adopts a tic-tac-toe structure, eight lifting ears are provided on the support frame, and the flexible combination facilitates multi-angle fine-tuning of the pipeline to ensure synchronization during the advancement process.

[0016] 4. The pipe clamp of the utility model is provided with a first rubber pad, which can increase the lateral anti-slip friction force and ensure reliable fixation between the pipe clamp and the glass fiber reinforced plastic sand-filled pipe to be installed.

[0017] 5. The annular tray of the support frame of the utility model is provided with a positioning block, which is convenient for fixing the support frame on the glass fiber reinforced plastic sand-filled pipe for assembly work.

[0018] 6. The pipe clamp of the utility model is a movable structure, which is convenient for flexible adjustment of angles and coordination with the support frame for pipe assembly.

[0019] 7. The utility model is easy to operate, and it is easy for operators to master the construction essentials, thereby improving the efficiency of pipeline assembly construction. It can ensure that each point in the pipeline assembly process is subjected to balanced force, and overcome the problem of damage to the sealing rubber of the pipe clamp caused by eccentric load assembly. The pipe clamp containing the first rubber pad is relatively fixed to the glass fiber reinforced plastic sand-filled pipe, which can provide a reliable force fulcrum for the hand chain hoist. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the utility model;

[0021] Figure 2 It is a structural diagram of the pipe clamp;

[0022] Figure 3 It is a structural diagram of the support frame.

[0023] Numbers in the attached drawings: 1. pipe clamp; 11. bolt; 12. first rubber pad; 2. ring tray; 21. positioning block; 22. third rubber pad; 3. support frame; 4. hand chain hoist; 5. glass fiber reinforced plastic sand-filled pipe to be installed; 6. installed glass fiber reinforced plastic sand-filled pipe; 7. first lifting ear; 8. lifting strap; 9. second lifting ear; 10. pipe clamp. DETAILED DESCRIPTION

[0024] The present invention is further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the present application.

[0025] Example: As attached Figure 1-3 As shown, the utility model describes a special tool for assembling FRP sand-filled pipes, including a pipe clamp 1, a support frame 3 with a ring tray 2, and two hand winches 4. The pipe clamp 1 consists of two arc frames and two bolts 11. The pipe clamp 1 is fixed to the installed FRP sand-filled pipe 6 by the bolts 11.

[0026] Preferably, in order to avoid squeezing the installed FRP sand-filled pipe, an arc-shaped first rubber pad 12 is provided on the inner wall of the pipe clamp 1, and a first rubber pad is pasted on the inner wall of each arc frame, which can not only avoid squeezing the installed FRP sand-filled pipe, but also increase the lateral anti-slip friction force, thereby ensuring reliable fixation between the pipe clamp 1 and the installed FRP sand-filled pipe 6.

[0027] The support frame 3 is placed at the rear end of the FRP sand-filled pipe 5 to be installed, the pipe clamp 10 is located at the rear end of the installed FRP sand-filled pipe 6, and the annular tray 2 on the support frame 3 abuts against the rear end surface of the FRP sand-filled pipe 5 to be installed.

[0028] Preferably, in order to avoid squeezing the FRP sand-filled pipe to be installed, a second annular rubber pad is provided on the end surface of the annular tray 2 close to the FRP sand-filled pipe 5 to be installed.

[0029] Preferably, in order to ensure the stability of the connection between the annular tray and the FRP sand-filled tube to be installed, a plurality of positioning blocks 21 are provided in an annular array on the annular tray 2, and the positioning blocks 21 abut against the outer peripheral wall of the FRP sand-filled tube 5 to be installed, and a third rubber pad 22 is provided on the end face of the positioning block 21 close to one end of the FRP sand-filled tube 5 to be installed, and the end of the FRP sand-filled tube 5 to be installed is restricted on the annular tray 2 by the plurality of annularly arranged positioning blocks 21, so as to prevent the support frame 3 from falling off the FRP sand-filled tube 5 to be installed.

[0030] Preferably, in order to be suitable for pipes with different outer diameters and ensure that the glass fiber reinforced plastic sand-filled pipe to be installed can be locked on the support frame, the positioning block 21 is an L-shaped plate, and the L-shaped plate is fixed to the annular tray 2 by screws, and waist-shaped holes adapted to the screws are provided on the annular tray 2 and / or the positioning block 21, and the waist-shaped holes are arranged along the axial direction of the annular tray 2, and the positioning block 21 can be locked on the annular tray 2 by screws, and the position of the positioning block 21 can be adjusted along the axial direction of the annular tray 2, which can be suitable for pipes with different outer diameters and ensure that the glass fiber reinforced plastic sand-filled pipe 5 to be installed can be locked on the support frame 3.

[0031] The pipe clamp 1 is symmetrically welded with a first lifting ear 7 for installing a hand hoist 4, and a plurality of second lifting ears 9 for connecting a sling 8 are welded on the support frame 3. The second lifting ears 9 are grouped in pairs. One end of the hand hoist 4 is connected to the first lifting ear 7, and the other end is connected to the middle part of the sling 8. Both ends of the sling 8 are fixed to the support frame 3 through the second lifting ears 9.

[0032] Preferably, the support frame 3 is a tic-tac-toe structure composed of four support rods, and a second lifting lug 9 is arranged at both ends of each support rod. The support frame is provided with eight lifting lugs, and the flexible combination facilitates multi-angle fine-tuning of the pipeline to ensure synchronization during the advancement process.

[0033] The use steps of the utility model are:

[0034] 1) Clean and dry the end of the FRP sand-filled pipe 5 and the inner sealing rubber ring of the pipe clamp 10 to be installed, and apply edible oil (Note: chemical oils are corrosive to the rubber of the pipe clamp) as a lubricant for the advancement process.

[0035] 2) Fix the support frame 3 to the end of the glass fiber reinforced plastic sand-filled pipe 5 to be installed along the direction of the positioning block 21, and install the pipe clamp 1 on the installed glass fiber reinforced plastic sand-filled pipe 6.

[0036] 3) Two construction workers simultaneously tighten the symmetrically arranged hand chain hoists 4 to slowly send the glass fiber reinforced plastic sand-filled pipe 5 to be installed into the pipe clamp 10.

[0037] 4) During the assembly process, always use a steel ruler to measure the actual distance between the scale ring on the FRP sand-filled pipe 5 to be installed and the pipe clamp 10 to ensure that the FRP sand-filled pipe 5 to be installed is advanced synchronously and evenly.

[0038] 5) When a slight deviation occurs, timely adjust the relative deviation between the glass fiber reinforced plastic sand-filled pipe 5 to be installed and the pipe clamp 10 by any combination of the eight lifting ears on the support frame 3, and appropriately adjust the direction of the pipe clamp 1 to cooperate with the hand winch to exert force.

[0039] 6) After the adjustment is completed, continue to tighten the hand hoists 4 on both sides simultaneously, and repeat the cycle until the glass fiber reinforced plastic sand-filled pipe 5 to be installed is pushed to the specified position inside the pipe clamp 10.

[0040] 7) The utility model can also be used to use the above method to quickly and efficiently install the pipe clamp 10 on the end of the pipe.

Claims

1. A special tool for assembling glass fiber reinforced plastic sand-filled pipes, characterized by: The invention comprises a pipe clamp (1), a support frame (3) with an annular tray (2), and two hand chain hoists (4); the pipe clamp (1) is fixed to an installed glass fiber reinforced plastic sand-filled pipe (6) by means of bolts (11); the support frame (3) is placed at the rear end of the glass fiber reinforced plastic sand-filled pipe (5) to be installed; the pipe clamp is located at the rear end of the installed glass fiber reinforced plastic sand-filled pipe (6); the annular tray (2) abuts against the rear end surface of the glass fiber reinforced plastic sand-filled pipe (5) to be installed; the pipe clamp (1) is symmetrically provided with first lifting ears (7) for installing the hand chain hoists (4); the support frame (3) is provided with a plurality of second lifting ears (9) for connecting a sling (8); one end of the hand chain hoist (4) is connected to the first lifting ear (7), and the other end is connected to the middle of the sling (8); both ends of the sling (8) are fixed to the support frame (3).

2. The special tool for assembling glass fiber reinforced plastic sand-filled pipes according to claim 1 is characterized by: An arc-shaped first rubber pad (12) is provided on the inner wall of the pipe clamp (1).

3. The special tool for assembling glass fiber reinforced plastic sand-filled pipes according to claim 1 is characterized by: The annular tray (2) is provided with an annular second rubber pad at one end close to the glass fiber reinforced plastic sand-filled pipe (5) to be installed.

4. The special tool for assembling glass fiber reinforced plastic sand-filled pipes according to claim 1 is characterized by: A plurality of positioning blocks (21) are arranged in an annular array on the annular tray (2), the positioning blocks (21) abut against the outer peripheral wall of the glass fiber reinforced plastic sand-filled pipe (5) to be installed, and a third rubber pad (22) is arranged on the end surface of the positioning block (21) close to one end of the glass fiber reinforced plastic sand-filled pipe (5) to be installed.

5. The special tool for assembling glass fiber reinforced plastic sand-filled pipes according to claim 4 is characterized by: The positioning block (21) is an L-shaped plate, which is fixed to the annular tray (2) by means of screws. Waist-shaped holes adapted to the screws are provided on the annular tray (2) and / or the positioning block (21), and the waist-shaped holes are arranged along the axial direction of the annular tray (2).

6. The special tool for assembling glass fiber reinforced plastic sand-filled pipes according to claim 1 is characterized by: The support frame (3) is a tic-tac-toe structure composed of four support rods, and second lifting ears (9) are arranged at both ends of each support rod.

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