Quick pipe mounting and dismounting device and mounting and dismounting method of quick pipe mounting and dismounting device

Abstract

The invention relates to a quick pipe mounting and dismounting device and a mounting and dismounting method formed by the quick pipe mounting and dismounting device. The quick pipe mounting and dismounting device comprises a push-pull rod mechanism, a support, a pre-tightening ring, a slope clamp and a stepped connecting cylinder, and the stepped connecting cylinder is of at least two-section type hollow structure and wraps the flaring end of a pipe; a circular arc attached to the flaring end of the pipe is arranged on the second step face of the step type connecting cylinder, the inner diameter of the first step face of the step type connecting cylinder is the same as that of the flaring end face, a movable inclined face clamp is arranged at the straight end of the pipe, a hollow annular circular truncated cone is arranged on the outer side of the inclined face clamp, and a pre-tightening ring making contact with the hollow annular circular truncated cone is arranged on the conical face of the hollow annular circular truncated cone. The support is provided with a push-pull rod mechanism which drives the pre-tightening ring and the pipe of the slope clamp to approach or leave the stepped sleeve, the push-pull rod mechanism is fixedly connected with the pre-tightening ring, the front end of the support is installed outside the straight pipe, the rear end of the support is tangent to the stepped connecting sleeve in an arc mode, and the problems that the pipe is complex to install, leakage is prone to occurring, and labor cost is high are solved. In addition, the device supports rapid reassembly.

Description

Technical Field

[0001] The invention relates to a pipe quick installation and disassembly device and an installation and disassembly method thereof, belonging to the technical field of pipe assembly. Background Art

[0002] At present, the pipe installation construction tools mainly solve the problems of inconvenient pipe installation and difficult construction. China Patent CN 210372295 U discloses a construction tool for pipe installation, including a first pipeline clamp, a second pipeline clamp, a pull rod and a puller. The puller is connected to the second pipeline clamp and drives the second pipeline clamp sliding on the second end of the pull rod to move unidirectionally close to the first pipeline clamp. During construction, the clamp must be fixed by a locking bolt, and the sliding sleeve, the pulling sleeve and other parts must be assembled. The operation is complicated and time-consuming and requires at least two people to complete. The gear mechanism must be frequently maintained and replaced during use, and the service life is limited. Secondly, the matching angle of the pipe insertion cannot be guaranteed during the pulling process, which will cause problems such as the sealing ring being overturned, resulting in poor sealing of the pipe connection, and it cannot be disassembled after installation. If an error occurs, it can only be sawed off and reinstalled, which is easy to cause time-consuming and high cost problems. Summary of the invention

[0003] In view of the above-mentioned problems existing in the prior art, the present invention provides a pipe rapid installation and disassembly device and the installation and disassembly method composed thereof, which is used to solve the problems in the prior art such as complex rapid installation and operation of pipes, large connection resistance, high labor cost, easy overturning of sealing rings during construction, and inability to quickly disassemble the pipes after installation.

[0004] Invention ideas

[0005] The present invention is mainly aimed at two installation problems that may occur in the construction process of existing PVC pipes for irrigation and other pipes: 1. First, during the installation of the pipes, the socket (flared end) of one pipe and the straight end of another pipe must be overlapped and coaxial to ensure smooth installation. However, in some cases, the pipes may be warped due to thermal expansion and contraction or uneven stacking, and the socket (flared end) and the straight end may be out of coaxial during installation. When the straight end enters the socket (flared end), there is a certain angle of deviation, which causes the straight end to punch over the sealing rubber ring in the socket (flared end) and cause water leakage. Secondly, the pipes are usually installed in a rope slipknot manner. The rope installation is easy to slip due to its good elasticity and causes a certain angle of deviation when the straight end enters the socket (flared end), which causes the straight end to punch over the sealing rubber ring in the socket (flared end) and cause water leakage. In the case that the rubber ring is overturned, the straight end is difficult to be removed from the socket (flared end) due to excessive friction. In this case, a sealed Haver joint will be installed to seal the entire socket (flared end) to reduce water leakage, reduce the cost of disassembling the pipe construction, and increase material costs; 2. During the installation of the pipe, because it is necessary to ensure that the socket (flared end) and the straight end are coaxial, at least two people are usually used for the installation, one person holds the socket (flared end) to make it coaxial with the straight end, and the other person performs force installation. The stepped connecting tube adopted in the technical solution of the present invention is to lengthen the straight section of the installation part of the socket (flared end), increase the coaxiality of the socket (flared end) and the straight end, and only one person is needed in the whole installation process. First, the straight end of another pipe is overlapped on the chamfer of the stepped connecting tube, and then, a push-pull device is used to ensure the smooth installation and success rate. The structure of the pre-tightening ring and the bevel clamp adopted can increase the clamping force on the pipe during the installation process. At the same time, if the sealing rubber ring is overturned during the installation, the pre-tightening ring and the bevel clamp only need to be installed in reverse, and the straight end can be quickly removed from the socket (flared end) by using the mechanical structure. After replacing the rubber ring at the socket (flared end), it can be installed again, which is convenient and fast, saving labor and material costs.

[0006] To achieve the above-mentioned purpose and other related purposes, the technical solution adopted by the present invention to solve the problem is: a device for rapid installation and disassembly of pipes, which includes a push-pull rod mechanism, a bracket, a preload ring, a bevel clamp and a stepped connecting tube. The stepped connecting tube is at least a two-petal hollow structure and is covered on the flared end of the pipe. The second step surface of the stepped connecting tube is provided with an arc that fits the flared end of the pipe. The inner diameter of the first step surface of the stepped connecting tube is the same as the inner diameter of the flared end surface. A movable bevel clamp is provided on the straight end of the pipe, a hollow annular cone is provided on the outside of the bevel clamp, and a preload ring in contact with the cone surface of the hollow annular cone is provided. A push-pull rod mechanism that drives the preload ring and the bevel clamp to move closer to or away from the stepped sleeve is provided on the bracket. The push-pull rod mechanism is fixedly connected to the preload ring. The front end of the bracket is installed outside the straight pipe, and the rear end is tangent to the arc of the stepped connecting sleeve.

[0007] The push-pull rod mechanism comprises a central push rod, a push rod handle, a push-pull device and a push rod top bracket. The push rod top bracket is welded to one end of the central push rod, the central push rod is provided with a push-pull device, and the push-pull device is provided with a push rod handle.

[0008] The push-pull device can be one of a spring mechanism, a screw mechanism, a ratchet mechanism, a gear rack mechanism or a worm gear mechanism, which can realize the reciprocating motion of the center push rod. The push rod handle can be one of a push handle, a rocker handle or a rotating handle, and the handle is a rubber-coated handle. The rubber-coated handle is non-slip and durable and can reduce the operation time.

[0009] The bracket is a rectangular structure, provided with two horizontal bars connecting four fixed rectangular columns at the front and rear ends, an inner groove is milled at the front end, a through hole for installing a central push rod is provided in the center of the inner groove, and a push-pull device of the push-pull rod mechanism is installed in the middle of the inner groove.

[0010] The bracket is a foldable structure, with slide grooves on the inner sides of the two horizontal bars, and arc surfaces on the inner sides of the two rear end columns that interlock with the protrusions of the sealing ring installed at the expanded portion. It is convenient to carry, and the addition of the slide grooves can improve the sliding stability of the central push rod.

[0011] The preload ring and the beveled circular clamp are at least a two-petal structure, which can be a bevel, a conical surface or a handcuff structure, and the bevel angle can be 0 to 90°. The two-petal and above structures are conducive to the installation, adjustment and disassembly of the preload ring and the beveled clamp on the straight pipe. At the same time, the beveled clamp and the preload ring are matched in a wedge-shaped structure. Under the dual extrusion pressure of the preload ring and the beveled clamp, the straight pipe can continuously reduce the resistance during the pipe docking process during the installation process.

[0012] In the device for rapid installation and removal of pipes, the inner circle of the outer end surface of the first step surface of the stepped connecting tube is provided with a chamfer, and the chamfer facilitates the overlapping installation of other pipes.

[0013] The preload ring and the bevel clamp can be connected by a snap-fit ​​device or a buckle adjustment device, so that the preload ring and the bevel clamp can hold the pipe tightly, and can also adapt to the installation of straight pipes of different sizes, and the installation is convenient.

[0014] The installation steps of the device composed of the above mechanism are as follows:

[0015] (1) Wrap the stepped connecting sleeve around the flared end of the pipe, and make the arc surface of the flared end of the pipe fit with the arc surface of the stepped connecting sleeve;

[0016] (2) Adjust the position of the bracket so that the rear end of the bracket is tightly attached to the arc surface of the stepped connecting tube, and the pre-tightening ring fixedly connected to the push-pull rod mechanism is tightly attached to any position of the straight pipe;

[0017] (3) Install the bevel clamp on the straight pipe, adjust the position of the bevel clamp to match the wedge-shaped structure of the preload ring, and use the buckle device or snap device to make the bevel clamp hold the straight pipe tightly;

[0018] (4) Operate the push rod handle to drive the preload ring and the inclined circular clamp to move closer to the stepped connection sleeve through the push rod top bracket to achieve pipe docking;

[0019] (5) In the face of installation errors, the preload ring and the bevel fixture are installed in reverse;

[0020] (6) Reversely operate the push rod handle to drive the preload ring and the bevel clamp away from the stepped connection sleeve through the push rod top bracket to achieve pipe disassembly.

[0021] Beneficial Effects

[0022] The present invention uses the interaction between the pre-tightening ring and the bevel clamp to improve the fastening force of the straight pipe, and at the same time realizes fast and accurate positioning through the stepped connecting tube, which can effectively prevent the sealing ring from being misplaced, solves the problem of complex installation of existing pipes, which requires at least two people or more to operate, reduces labor costs, and solves the problem of pipe leakage due to improper installation. In addition, in the face of installation errors, the device supports rapid reinstallation, which improves installation efficiency and flexibility.

[0023] The invention is particularly suitable for application in the field of rapid installation of pipes, such as field drip irrigation pipes, PVC-O pipes, PVC-U pipes and metal pipes. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention is further described below in conjunction with the accompanying drawings.

[0025] Figure 1 Schematic diagram of the overall implementation process of the present invention

[0026] Figure 2 Schematic diagram of the overall implementation structure of the present invention

[0027] Figure 3 This is a schematic diagram of the structure of the preload ring (1) of the present invention.

[0028] Figure 4 This is a schematic diagram of the structure of the preload ring (2) of the present invention.

[0029] Figure 5 The schematic diagram of the structure of the inclined plane clamp (1) of the present invention is

[0030] Figure 6 This is a side projection diagram of the inclined plane fixture (1) of the present invention.

[0031] Figure 7 This is a schematic diagram of the structure of the inclined plane clamp (2) of the present invention.

[0032] Figure 8This is a side projection diagram of the inclined plane fixture (2) of the present invention.

[0033] Fig. 9 This is an isometric view of the stepped connecting tube of the present invention.

[0034] Fig.10 Schematic diagram of the support structure of the present invention

[0035] Fig.11 Schematic diagram of the push-pull rod mechanism and the bracket assembly structure of the present invention

[0036] Fig.12 Schematic diagram of the push-pull device screw mechanism in the push-pull rod mechanism of the present invention

[0037] Fig.13 Schematic diagram of the ratchet mechanism of the push-pull device in the push-pull rod mechanism of the present invention

[0038] Fig.14 Schematic diagram of the rack and pinion mechanism of the push-pull device in the push-pull rod mechanism of the present invention

[0039] Fig.15 Schematic diagram of the worm gear mechanism of the push-pull device in the push-pull rod mechanism of the present invention

[0040] Wherein: 1-pipe; 2-stepped connecting tube; 3-bracket; 4-push rod handle; 5-center push rod; 6-inclined clamp; 7-preload ring; 8-push rod top bracket; 9-metal plate; 10-straight tube; 11-spring (1); 12-fastening device; 13-hinge (2); 14-buckle body; 15-chain; 16-hook; 17-clamp ring; 18-fastening device (2); 19-first step surface of the stepped connecting tube; 20-second step surface of the stepped connecting tube; 21-square inner groove; 22-through hole; 23-push rod release pressure plate; 24-spring (2) DETAILED DESCRIPTION

[0041] Combination Figure 1 - Fig.15 The present invention will be further described.

[0042] Example 1: Reference Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 , Fig. 9 - Fig.11To illustrate, when the pipe is installed, the operation process is as follows: install the pipes into the stepped connecting tube 2 respectively, adjust the pipe 1 to contact the arc surface of the second step surface 20 of the stepped connecting tube, and adjust the snap-fit ​​device (2) 18 so that the stepped connecting tube 2 covers the pipe 1 and the straight pipe 10; adjust the bracket 3 so that its end is tangent to the expanded arc surface of the stepped connecting tube 2 to prevent the pipe 10 from moving backward under the action of force during the installation process; use the snap-fit ​​device 12 to make the pre-tightening ring 7 hold the pipe 10 tightly; adjust the position of the bevel clamp 6 so that the bevel clamp 6 and the pre-tightening ring 7 are wedge-shaped, and use the buckle adjustment device to make the bevel clamp 6 hold the straight pipe 10 tightly; press the push rod handle 4, and when the spring 11 and the spring 24 are Under the synergistic effect, the center push rod 5, the bevel clamp 6 and the pre-tightening ring 7 drive the pipe 10 to move in a directional manner along the stepped connecting tube 2. Under the dual action of the bevel clamp 6 and the pre-tightening ring 7, the clamping force of the bevel clamp 6 on the straight pipe 10 is continuously increased to achieve the connection between the two pipes; after the two pipes are connected, the push rod is pressed to release the pressure plate 23 to achieve pressure relief, and the center push rod 5 can be pulled out in the opposite direction to achieve one-time installation of the pipe. At the same time, the bevel clamp 6, the pre-tightening ring 7 and the stepped connecting tube 2 are opened to achieve rapid disassembly of the installation tool. In addition, in the face of installation errors, the push rod handle can be operated in the reverse direction on the basis of the installation, and the pre-tightening ring and the bevel clamp can be driven away from the stepped connecting sleeve through the top bracket of the push rod to achieve pipe disassembly.

[0043] Example 2: Reference Figure 4 , Figure 7 , Figure 8 , which is different from Example 1 in that the structures of the pre-tightening ring and the bevel clamp are different, and the pre-tightening ring and the bevel clamp are bevel structures.

[0044] Example 3: Reference Fig.12 The difference from Example 2 is that its push-pull device is a screw mechanism.

[0045] Example 4: Reference Fig.13 The difference from Example 3 is that its push-pull device is a ratchet mechanism.

[0046] Example 5: Reference Fig.14 The difference from Example 4 is that its push-pull device is a rack and pinion mechanism.

[0047] Example 6: Reference Fig.15 The difference from Example 5 is that its push-pull device is a turbine worm gear mechanism.

[0048] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for rapid installation and removal of pipes, characterized in that It includes a push-pull rod mechanism, a bracket, a preload ring, a bevel clamp and a stepped connecting tube. The stepped connecting tube is at least a two-petal hollow structure and is covered on the flared end of the pipe. The second step surface of the stepped connecting tube is provided with an arc that fits the flared end of the pipe. The inner diameter of the first step surface of the stepped connecting tube is the same as the inner diameter of the flared end surface. A movable bevel clamp is provided on the straight end of the pipe. A hollow annular cone is provided on the outer side of the bevel clamp. A preload ring in contact with the cone surface of the hollow annular cone is provided. The bracket is provided with a push-pull rod mechanism that drives the preload ring and the bevel clamp to move closer to or away from the stepped sleeve. The push-pull rod mechanism is fixedly connected to the preload ring. The front end of the bracket is installed outside the straight pipe, and the rear end is tangent to the arc of the stepped connecting sleeve.

2. A pipe rapid installation and removal device according to claim 1, characterized in that The push-pull rod mechanism comprises a central push rod, a push rod handle, a push-pull device and a push rod top bracket. The push rod top bracket is welded to one end of the central push rod, the central push rod is provided with a push-pull device, and the push-pull device is provided with a push rod handle.

3. A pipe rapid installation and removal device according to claim 2, characterized in that The push-pull device can be one of a spring mechanism, a screw mechanism, a ratchet mechanism, a gear rack mechanism or a worm gear mechanism, the push rod handle can be one of a push handle, a rocker handle or a rotating handle, and the handle is a rubber-coated handle.

4. A pipe rapid installation and removal device according to claim 1, characterized in that The bracket is a rectangular structure with two horizontal bars connecting the front and rear ends of four fixed rectangular columns. The front end is milled with an inner groove, and the center of the inner groove is provided with a through hole for installing a central push rod. The push-pull device of the push-pull rod mechanism is installed in the middle of the inner groove.

5. A pipe rapid installation and removal device according to claim 4, characterized in that The bracket is a foldable structure, with slide grooves arranged on the inner sides of the two horizontal bars, and arc surfaces interlocking with the protrusions of the sealing ring installed at the expansion part are arranged on the inner sides of the two upright columns at the rear end.

6. A pipe rapid installation and removal device according to claim 5, characterized in that The preload ring and the bevel clamp are at least a two-petal structure. The structures of the preload ring and the bevel clamp can be a bevel, a conical surface or a handcuff structure, and the bevel angle can be 0-90 degrees.

7. A pipe rapid installation and removal device according to claim 6, characterized in that The preload ring and the bevel clamp may be connected by a snap-fit ​​device or a buckle adjustment device that holds the pipe.

8. A pipe rapid installation and removal device according to claim 7, characterized in that The inner circle of the outer end surface of the first step surface of the stepped connecting cylinder is provided with a chamfer.

9. A method for rapid installation and removal of pipes according to the above claims, characterized in that The installation and removal steps are as follows: (1) Wrap the stepped connecting sleeve around the flared end of the pipe, and make the arc surface of the flared end of the pipe fit with the arc surface of the stepped connecting sleeve; (2) Adjust the position of the bracket so that the rear end of the bracket is tightly attached to the arc surface of the stepped connecting tube, and the pre-tightening ring fixedly connected to the push-pull rod mechanism is tightly attached to any position of the straight pipe; (3) Install the bevel clamp on the straight pipe, adjust the position of the bevel clamp to match the wedge-shaped structure of the preload ring, and use the buckle device or snap device to make the bevel clamp hold the straight pipe tightly; (4) Operate the push rod handle to drive the preload ring and the inclined circular clamp to move closer to the stepped connection sleeve through the push rod top bracket to achieve pipe docking; (5) In the face of installation errors, the preload ring and the bevel fixture are installed in reverse; (6) Reversely operate the push rod handle to drive the preload ring and the bevel clamp away from the stepped connection sleeve through the push rod top bracket to achieve pipe disassembly.

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