A pre-tightening type variable-diameter clamp for a communication pipeline

Abstract

The present application relates to the technical field of pipeline clamp, especially to a pre-tightening type variable-diameter clamp for communication pipeline. The clamp comprises a first clamping piece, a sliding rod connected to one side of the first clamping piece, a second clamping piece connected to the lower side of the sliding rod, a threaded rod connected to the sliding rod and threaded to the second clamping piece, a first limiting piece connected to the first clamping piece, a spring arranged between the first limiting piece and the first clamping piece, and a plurality of limiting grooves evenly arranged on the side of the sliding rod close to the first limiting piece. The first limiting piece is limitedly matched with the adjacent limiting groove on the sliding rod. The second clamping piece is pulled by the spring, so that the first clamping piece and the second clamping piece pre-clamp the communication pipeline. After the first clamping piece and the second clamping piece clamp the communication pipeline, the first limiting piece limits the sliding rod, so as to fix the second clamping piece. The staff can connect the communication pipeline by the support of the second clamping piece.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pipe clamps, in particular to a pre-tightening type variable-diameter clamp for communication pipes. BACKGROUND

[0002] The clamp in the communication pipe is an important accessory for fixing the pipe or pipe fitting, mainly used to ensure the stability of the communication pipe. According to the different functions and application scenarios, the communication pipe clamp can be divided into various types, such as the variable-diameter clamp, which is a clamp that can fix communication pipes of different diameters. Due to the gravity of the communication pipe itself, the part between the two adjacent fixed points of the communication pipe will sag, so a clamp will be set at intervals to fix the communication pipe, thereby avoiding damage to the communication pipe due to excessive bending.

[0003] The existing communication pipe is installed by fixing it to the wall, for example. First, one half of the clamp is connected to the wall, and the existing method is to connect it through bolts. Then, the communication pipe is moved to contact the half of the clamp and connect the adjacent two communication pipes. Finally, the other half of the clamp is installed, and the two halves of the clamp fix the communication pipe. In this process, the communication pipe needs to be supported to facilitate the connection and fixation of the communication pipe, which increases the workload during the installation of the communication pipe and reduces the efficiency of the installation of the communication pipe. SUMMARY

[0004] In order to overcome the shortcomings mentioned in the background art, the present application provides a pre-tightening type variable-diameter clamp for communication pipes.

[0005] The technical implementation scheme of the present application is as follows: a pre-tightening type variable-diameter clamp for communication pipes, comprising a first clamping piece, one side of the first clamping piece being slidably connected with a sliding rod, the lower side of the sliding rod being slidably connected with a second clamping piece, a tension spring being arranged between the second clamping piece and the first clamping piece, the second clamping piece being threadedly connected with a threaded rod rotatably connected with the sliding rod, the first clamping piece being slidably connected with a first limiting piece, a spring being arranged between the first limiting piece and the first clamping piece, the side of the sliding rod close to the first limiting piece being provided with uniformly distributed limiting grooves, the first limiting piece being limitingly matched with the adjacent limiting grooves on the sliding rod.

[0006] More preferably, the opposite sides of the first clamping piece and the second clamping piece are both provided with rubber pads.

[0007] More preferably, the first clamping piece is slidably connected with a second limiting piece, a spring is arranged between the second limiting piece and the first clamping piece, the side of the sliding rod close to the second limiting piece is provided with uniformly distributed limiting grooves, and the second limiting piece is limitingly matched with the adjacent limiting grooves on the sliding rod.

[0008] More preferably, the first clamping piece is slidingly connected with a pressing piece and a trigger piece, the pressing piece is fixedly connected with the trigger piece, a spring is arranged between the trigger piece and the first clamping piece, the pressing piece is composed of a rod-shaped part and two inclined surface parts, and the first limiting piece and the second limiting piece are respectively in inclined surface pressing cooperation with the adjacent inclined surface of the pressing piece.

[0009] More preferably, the pressing piece is located between the first limiting piece and the second limiting piece, the first limiting piece is provided with an inclined surface downward, and the second limiting piece is provided with an inclined surface upward.

[0010] More preferably, the sum of the height of the rod-shaped part of the pressing piece and one of the inclined surface parts is less than the distance between the first limiting piece and the second limiting piece.

[0011] More preferably, the installation rods are symmetrically distributed, the installation rods are fixedly connected with the second clamping piece, the installation rods are rotatably connected with rotating pieces away from the second clamping piece, the rotating pieces are in pressing friction cooperation with the first clamping piece, the installation rods are rotatably connected with rotating shells, the rotating shells are slidingly connected with rotating rods rotatably connected with adjacent rotating pieces, and springs are arranged between the rotating rods and adjacent rotating shells.

[0012] More preferably, the rotating piece is in cooperation with the first clamping piece below the rotating connection between the rotating piece and the adjacent rotating shell.

[0013] More preferably, the surface of the rotating piece away from the adjacent installation rod is provided with a friction material.

[0014] More preferably, the second clamping piece is provided with a sliding groove, a sliding column is slidingly connected in the sliding groove of the second clamping piece, the sliding groove of the second clamping piece and the symmetrically distributed rotating shells are filled with liquid, and the symmetrically distributed rotating shells and the sliding groove of the second clamping piece are connected through a hose.

[0015] The present application has the following advantages: the second clamping piece is pulled by the tension spring, the first clamping piece and the second clamping piece pre-clamp the communication pipeline, the first limiting piece limits the sliding rod after the first clamping piece and the second clamping piece clamp the communication pipeline, thereby fixing the second clamping piece, and the staff can connect the communication pipeline through the support of the second clamping piece.

[0016] The communication pipeline can slowly descend through the friction between the rotating part and the first clamping part when disassembled, so as to avoid that the communication pipeline is damaged or people are injured due to the too fast falling speed of the communication pipeline, and the weight of the communication pipeline is transmitted to the rotating part through the sliding column, so that the friction between the rotating part and the first clamping part changes according to the weight of the communication pipeline, so that the pipelines with different weights can descend at a relatively appropriate speed. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a perspective structural schematic view of the present application;

[0018] Figure 2 It is a perspective structural sectional view of the first clamping part and the second clamping part of the present application;

[0019] Figure 3 It is a perspective structural sectional view of the first clamping part and the sliding rod of the present application;

[0020] Figure 4 It is an explosion view of the first limiting part, the second limiting part and the extrusion part of the present application;

[0021] Figure 5 It is a perspective structural schematic view of the mounting rod and the rotating part of the present application;

[0022] Figure 6 It is a perspective structural schematic view of the sliding column of the present application;

[0023] Figure 7 It is a perspective structural schematic view of the rotating shell and the rotating rod of the present application.

[0024] The marks of each part in the drawings are as follows: 1, first clamping part, 2, sliding rod, 3, second clamping part, 4, threaded rod, 5, first limiting part, 6, second limiting part, 7, extrusion part, 71, trigger part, 8, mounting rod, 9, rotating part, 10, rotating shell, 11, rotating rod, 12, sliding column. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0026] The existing device needs to support the communication pipeline when fixing the communication pipeline, which increases the workload of the communication pipeline installation and reduces the installation efficiency of the communication pipeline.

[0027] Embodiment 1: A pre-tightening type variable-diameter clamp for communication pipeline, likeFigure 1 , Figure 2 and Figure 4 As shown, the device includes a first clamping member 1. A sliding rod 2 is slidably connected to the left side of the first clamping member 1, through which the first clamping member 1 passes. A second clamping member 3 is slidably connected to the lower side of the sliding rod 2. A tension spring is provided between the second clamping member 3 and the first clamping member 1, which is used to move the second clamping member 3 upward, thereby clamping the communication pipe with the first clamping member 1 and the second clamping member 3. A threaded rod 4, which is rotatably connected to the sliding rod 2, is threaded to the left side of the second clamping member 3. A first limiting member 5 is slidably connected to the left side of the first clamping member 1. The first limiting member 5 consists of a limiting part and a pull rod part. The pull rod part of the first limiting member 5 holds the first... The rear side of the clamping member 1 is through-hole. A spring is provided between the first limiting member 5 and the first clamping member 1. The spring is initially in a charged state and is used to move the first limiting member 5 to the right. The sliding rod 2 is provided with a uniformly distributed limiting groove on the side near the first limiting member 5. The first limiting member 5 is in a limiting fit with the adjacent limiting groove on the sliding rod 2. The first limiting member 5 is provided with a downward inclined surface. When the first limiting member 5 is inserted into the adjacent limiting groove on the sliding rod 2, the sliding rod 2 cannot move downward. Rubber pads are provided on the opposing sides of the first clamping member 1 and the second clamping member 3 to avoid friction and wear between the communication pipe and the first clamping member 1 and the second clamping member 3.

[0028] like Figures 2-4 As shown, a second limiting member 6 is slidably connected to the left side of the first clamping member 1. A spring is provided between the second limiting member 6 and the first clamping member 1. The spring is used to reset the second limiting member 6. A uniformly distributed limiting groove is provided on the side of the sliding rod 2 near the second limiting member 6. The second limiting member 6 is in limiting engagement with the adjacent limiting groove on the sliding rod 2. The second limiting member 6 is provided with an upward inclined surface. When the second limiting member 6 is inserted into the adjacent limiting groove on the sliding rod 2, the sliding rod 2 cannot move upward.

[0029] like Figures 2-4The first clamping piece 1 is slidingly connected with the extruding piece 7 and the trigger piece 71, the extruding piece 7 is fixedly connected with the trigger piece 71, a spring is arranged between the trigger piece 71 and the first clamping piece 1, the spring is used for resetting the trigger piece 71, the extruding piece 7 is composed of a rod-shaped part and two inclined surface parts, the first limiting piece 5 and the second limiting piece 6 are respectively extrudedly matched with the adjacent inclined surfaces of the extruding piece 7, the extruding piece 7 moves upwards to extrude the second limiting piece 6 and move it to the right, the extruding piece 7 moves downwards to extrude the first limiting piece 5 and move it to the left, the extruding piece 7 is located between the first limiting piece 5 and the second limiting piece 6, the sum of the height of the rod-shaped part of the extruding piece 7 and the height of one of the inclined surface parts is less than the distance between the first limiting piece 5 and the second limiting piece 6, so that when the rod-shaped part of the extruding piece 7 is in contact with the first limiting piece 5, the second limiting piece 6 is separated from the adjacent inclined surface part of the extruding piece 7, and when the rod-shaped part of the extruding piece 7 is in contact with the second limiting piece 6, the first limiting piece 5 is separated from the adjacent inclined surface part of the extruding piece 7.

[0030] When the device is used to fix the communication pipeline, first, the first clamping piece 1 is installed on the wall, then the second clamping piece 3 is moved downwards, the second clamping piece 3 stretches the adjacent tension spring, the second clamping piece 3 drives the sliding rod 2 to move downwards through the threaded rod 4, the sliding rod 2 extrudes the second limiting piece 6 when moving downwards, the second limiting piece 6 moves to the right and compresses the adjacent spring, the second clamping piece 3 is stopped after being moved to the appropriate position, at this time, the second limiting piece 6 moves to the left under the action of the adjacent spring and is inserted into the adjacent limiting groove of the sliding rod 2, so that the sliding rod 2 cannot move upwards, then the communication pipeline is placed between the first clamping piece 1 and the second clamping piece 3, then the communication pipeline extrudes the trigger piece 71, the trigger piece 71 moves upwards and compresses the adjacent spring, the trigger piece 71 drives the extruding piece 7 to move upwards, the inclined surface part on the right side of the extruding piece 7 extrudes the second limiting piece 6 to move to the right, and the inclined surface part on the left side of the extruding piece 7 gradually separates from the first limiting piece 5.

[0031] When the second limiting member 6 is separated from the adjacent limiting groove on the sliding rod 2, the inclined surface part on the left side of the extrusion member 7 is separated from the first limiting member 5, the first limiting member 5 moves to the right under the action of the adjacent spring and is inserted into the adjacent limiting groove of the sliding rod 2, at this time the second clamping member 3 is driven by the threaded rod 4 to move the sliding rod 2 upward under the action of the adjacent tension spring, the sliding rod 2 extrudes the first limiting member 5 to move to the left and compresses the adjacent spring, when the second clamping member 3 contacts the communication pipeline and stops moving, at this time the first limiting member 5 is inserted into the limiting groove of the sliding rod 2 under the action of the adjacent spring, so that the sliding rod 2 and the second clamping member 3 cannot move downward, so that the first clamping member 1 and the second clamping member 3 preliminarily clamp the communication pipeline, after the communication pipeline is connected with other pipelines, the threaded rod 4 is rotated to move the sliding rod 2 downward relative to the second clamping member 3, so as to finally fix the communication pipeline, so that the device can fix the communication pipeline without other assistance, reducing the workload when the communication pipeline is installed and improving the efficiency of the communication pipeline installation.

[0032] When the communication pipeline is disassembled, the threaded rod 4 is reversely rotated to preliminarily loosen the communication pipeline by the first clamping member 1 and the second clamping member 3, then the first limiting member 5 is moved to the left, the first limiting member 5 is separated from the adjacent limiting groove on the sliding rod 2 and compresses the adjacent spring, then the second clamping member 3 is moved downward, the second clamping member 3 drives the sliding rod 2 to move downward through the threaded rod 4, so that the communication pipeline is easily taken out from between the first clamping member 1 and the second clamping member 3.

[0033] The existing device for fixing the communication pipeline is mostly left to fall on the ground when disassembled, which will cause the communication pipeline to be damaged or the worker to be injured when disassembled.

[0034] Example 2: on the basis of example 1, like Figure 1 and Figures 5-7As shown, the device also includes two L-shaped mounting rods 8 symmetrically distributed front and back, both of which are fixed to the left side of the second clamping piece 3, and the upper side of each mounting rod 8 is rotationally connected with a rotating piece 9, which is in extrusion and frictional engagement with the first clamping piece 1, thereby slowing down the speed of the second clamping piece 3 when moving downward. The mounting rod 8 is rotationally connected with a rotating shell 10, which is slidingly connected with a rotating rod 11 rotationally connected with the adjacent rotating piece 9. A spring is provided between the rotating rod 11 and the adjacent rotating shell 10, which is initially in a force storage state, used to keep the rotating piece 9 in contact with the first clamping piece 1 through the rotating rod 11. The contact between the rotating piece 9 and the first clamping piece 1 is located below the rotating connection between the rotating piece 9 and the adjacent rotating shell 10, so that the second clamping piece 3 is basically not affected by the friction between the rotating piece 9 and the first clamping piece 1 when moving upward, while the second clamping piece 3 moves downward, the rotating piece 9 and the first clamping piece 1 are in friction, thereby slowing down the downward speed of the second clamping piece 3. The lower surface of the rotating piece 9 is provided with a friction material, thereby increasing the friction between the rotating piece 9 and the first clamping piece 1.

[0035] As shown, Figure 6 The middle part of the upper side of the second clamping piece 3 is provided with a sliding groove, and the sliding groove of the second clamping piece 3 is slidingly connected with a sliding column 12. The sliding groove of the second clamping piece 3 and the two rotating shells 10 are both filled with liquid, which is hydraulic oil in this and the following, used for transmission. The two rotating shells 10 and the sliding groove of the second clamping piece 3 are connected by a hose.

[0036] When the communication pipe is disassembled, the first limiting piece 5 is moved to the left and the communication pipe is held, at this time the second clamping piece 3 drives the two installation rods 8 to move downward under the gravity of itself and the communication pipe, the installation rod 8 drives the adjacent rotating piece 9 to move downward, the rotating piece 9 and the first clamping piece 1 produce friction, thereby slowing down the speed of the second clamping piece 3 moving downward, avoiding the communication pipe from falling quickly due to the heavy weight and hurting people, when the second clamping piece 3 moves downward, the communication pipe extrudes the sliding column 12, the sliding column 12 extrudes the liquid in the sliding groove, and the pressure received by the sliding column 12 is transmitted to the two rotating rods 11 through the hose, the pressure is transmitted to the adjacent rotating piece 9 through the rotating rod 11, thereby increasing the pressure between the rotating piece 9 and the first clamping piece 1, and further increasing the friction between the rotating piece 9 and the first clamping piece 1, so as to adapt the friction between the rotating piece 9 and the first clamping piece 1 according to the weight of the communication pipe, thereby enabling the communication pipe with any weight to move downward at a slower speed when disassembled, avoiding quick falling and hurting people, when the second clamping piece 3 moves upward, the second clamping piece 3 drives the two rotating pieces 9 to move upward, the rotating piece 9 contacts and rubs with the first clamping piece 1, at this time the friction between the rotating piece 9 and the first clamping piece 1 makes the lower side of the rotating piece 9 swing away from the first clamping piece 1, when the rotating piece 9 swings, the adjacent rotating rod 11 is driven to move and compress the adjacent spring, the swing of the rotating piece 9 reduces the pressure between the rotating piece 9 and the first clamping piece 1, so the friction between the rotating piece 9 and the first clamping piece 1 is also reduced, thereby enabling the two rotating pieces 9 to normally move upward along the first clamping piece 1.

[0037] To sum up, the above is only the preferred embodiment of the present application, not for limiting the protection scope of the present application. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A pre-tightening reducing clamp for communication pipes, comprising a first clamping member (1), a sliding rod (2) slidably connected to one side of the first clamping member (1), a second clamping member (3) slidably connected to the lower side of the sliding rod (2), a tension spring provided between the second clamping member (3) and the first clamping member (1), and a threaded rod (4) threadedly connected to the second clamping member (3) and rotatably connected to the sliding rod (2), characterized in that: It also includes a first limiting member (5), which is slidably connected to the first clamping member (1). A spring is provided between the first limiting member (5) and the first clamping member (1). The sliding rod (2) has a uniformly distributed limiting groove on the side near the first limiting member (5). The first limiting member (5) and the adjacent limiting grooves on the sliding rod (2) are in a limiting cooperation. The first clamping member (1) is slidably connected to the second limiting member (6), and a spring is provided between the second limiting member (6) and the first clamping member (1). The sliding rod (2) is provided with uniformly distributed limiting grooves on the side near the second limiting member (6), and the second limiting member (6) and the adjacent limiting grooves on the sliding rod (2) are mutually limiting and cooperating. The first clamping member (1) is slidably connected with a pressing member (7) and a trigger member (71). The pressing member (7) is fixedly connected to the trigger member (71). A spring is provided between the trigger member (71) and the first clamping member (1). The pressing member (7) is composed of a rod-shaped part and two inclined parts. The first limiting member (5) and the second limiting member (6) are respectively pressed and engaged with the adjacent inclined surfaces on the pressing member (7).

2. A pre-tightening reducing clamp for communication pipelines according to claim 1, characterized in that: Rubber pads are provided on the opposing sides of the first clamping member (1) and the second clamping member (3).

3. A pre-tightening reducing clamp for communication pipes according to claim 1, characterized in that: The extrusion member (7) is located between the first limiting member (5) and the second limiting member (6). The first limiting member (5) is provided with a downward inclined surface, and the second limiting member (6) is provided with an upward inclined surface.

4. A pre-tightening reducing clamp for communication pipelines according to claim 3, characterized in that: The sum of the heights of the rod-shaped portion and one of the inclined portions of the extruder (7) is less than the distance between the first limiting member (5) and the second limiting member (6).

5. A pre-tightening reducing clamp for communication pipelines according to claim 1, characterized in that: It also includes symmetrically distributed mounting rods (8), all of which are fixed to the second clamping member (3). Each of the symmetrically distributed mounting rods (8) is rotatably connected to a rotating member (9) on the side away from the second clamping member (3). The rotating member (9) is in a squeezing friction fit with the first clamping member (1). The mounting rod (8) is rotatably connected to a rotating shell (10). The rotating shell (10) is slidably connected to a rotating rod (11) that is rotatably connected to the adjacent rotating member (9). A spring is provided between the rotating rod (11) and the adjacent rotating shell (10).

6. A pre-tightening reducing clamp for communication pipes according to claim 5, characterized in that: The point where the rotating component (9) engages with the first clamping component (1) is located below the point where the rotating component (9) is rotatably connected to the adjacent rotating shell (10).

7. A pre-tightening reducing clamp for communication pipes according to claim 5, characterized in that: The rotating part (9) has a friction material on the side surface away from the adjacent mounting rod (8).

8. A pre-tightening reducing clamp for communication pipelines according to claim 5, characterized in that: The second clamping member (3) is provided with a sliding groove, and a sliding column (12) is slidably connected in the sliding groove of the second clamping member (3). The sliding groove of the second clamping member (3) and the symmetrically distributed rotating shell (10) are both filled with liquid. The symmetrically distributed rotating shell (10) and the sliding groove of the second clamping member (3) are connected by a hose.

Images