CN220872223U - Pipe pressure experiment clamp - Google Patents

Abstract

The utility model relates to the technical field of building material quality detection equipment, in particular to a pipe pressure experiment clamp which comprises a movable clamp head, a static clamp head, a test piece, a plug, a rocker mechanism, a tightening top sleeve and a nut. The movable clamping head is opened by operating the rocker mechanism, and a test piece is filled; and then reversely operating the rocker mechanism to close the movable clamp head and tightly clamp the test piece, enabling the movable clamp head and the static clamp head to clamp the test piece, enabling the plug to be connected to the static clamp head by threads and used for sealing the test piece, installing an experimental pipeline, fixing the fastening sleeve on the test piece, and mutually extruding conical surfaces on the fastening sleeve and the nut when screwing the nut, so that the inner diameter of the fastening sleeve is contracted and deformed to clamp the test piece, and enabling the saw-tooth tip of the inner surface of the fastening sleeve to penetrate into the test piece to prevent the test piece from falling off after bearing. The pipe clamp is easy to install, high in efficiency and reliable in sealing.

Description

Pipe pressure experiment clamp

Technical Field

The utility model relates to the technical field of building material quality detection equipment, in particular to a pipe pressure experiment clamp.

Background

Polyethylene (PE) and polypropylene are common pipes for cold and hot water pipeline systems of buildings in China, when hydrostatic strength and internal pressure experiments are carried out on various pipes, two ends of the pipes are required to be plugged by a clamp, and pressurized water with the pressure of up to more than 10MPa is pumped into the pipes.

However, the existing pipe clamp is difficult to install, low in efficiency, needs a large amount of labor, is not tight in sealing after pressure bearing of part of pipe clamps, leaks, and part of pipe clamps cannot be reliably fixed on a test piece and are separated from the test piece after pressure bearing.

Disclosure of utility model

The utility model aims to provide a pipe pressure experiment clamp, which solves the problems that the existing pipe clamp is difficult to install, low in efficiency and high in labor intensity, sealing is not tight after partial pipe clamp is pressed, leakage occurs, and partial pipe clamp cannot be reliably fixed on a test piece and is separated from the test piece after the pressure is applied.

In order to achieve the above purpose, the utility model provides a pipe pressure experiment clamp, which comprises a movable clamp, a static clamp, a test piece, a plug, a rocker mechanism, a tight top sleeve and a nut, wherein the movable clamp and the static clamp are respectively sleeved outside the test piece, the lower end of the movable clamp is rotationally connected with the lower end of the static clamp, the rocker mechanism is arranged at the tops of the movable clamp and the static clamp, the plug is in threaded connection with the static clamp and is positioned at the left side of the static clamp, the tight top sleeve is sleeved outside the test piece and is positioned at the right end of the test piece, and the nut is sleeved outside the right end of the tight top sleeve.

The rocker mechanism comprises a crank, a pull rod and a pin shaft, one end of the pull rod is rotatably connected with the upper end of the static chuck, and one end of the pin shaft penetrates through the upper end of the movable chuck and the crank and is fixedly connected with the other end of the pull rod.

The pipe pressure experiment clamp further comprises a first O-shaped ring, and the first O-shaped ring is arranged at the joint of the plug and the static chuck.

The pipe pressure experiment clamp further comprises a second O-shaped ring, and the second O-shaped ring is arranged on the right inner wall of the test piece.

According to the pipe pressure experiment clamp, the movable clamp head is opened by operating the rocker mechanism, and a test piece is filled; and then reversely operating the rocker mechanism to close the movable clamp head and tightly clamp the test piece, so that the movable clamp head and the static clamp head can clamp the test piece, the plug is connected to the static clamp head by threads and is used for sealing the test piece and installing an experimental pipeline, the tight sleeve is fixed on the test piece firstly, when the nut is screwed, the tight sleeve and the conical surface on the nut are mutually extruded, the inner diameter of the tight sleeve is contracted and deformed to clamp the test piece, the zigzag tip of the inner surface of the tight sleeve penetrates the test piece to prevent the test piece from falling off after bearing, and the pipe clamp is easy to install, high in efficiency and reliable in sealing.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.

Fig. 1 is a schematic overall structure of the present utility model.

Fig. 2 is an overall elevation view of the present utility model.

Fig. 3 is an overall cross-sectional view of the present utility model.

Fig. 4 is an enlarged view of the partial structure at a of fig. 3 according to the present utility model.

Fig. 5 is an enlarged view of a partial structure at B of fig. 3 according to the present utility model.

Fig. 6 is a top view of the entirety of the present utility model.

1-Movable clamping head, 2-static clamping head, 3-test piece, 4-plug, 5-tight top sleeve, 6-nut, 7-crank, 8-pull rod, 9-pin shaft, 10-first O-shaped ring and 11-second O-shaped ring.

Detailed Description

The following detailed description of embodiments of the utility model, examples of which are illustrated in the accompanying drawings and, by way of example, are intended to be illustrative, and not to be construed as limiting, of the utility model.

Referring to fig. 1 to 6, fig. 1 is a schematic view of the entire structure of the present utility model, fig. 2 is a front view of the entire structure of the present utility model, fig. 3 is a cross-sectional view of the entire structure of the present utility model, fig. 4 is an enlarged view of the partial structure of fig. 3a of the present utility model, fig. 5 is an enlarged view of the partial structure of fig. 3B of the present utility model, and fig. 6 is a top view of the entire structure of the present utility model.

The utility model provides a pipe pressure experiment clamp which comprises a movable clamp head 1, a static clamp head 2, a test piece 3, a plug 4, a rocker mechanism, a tight jacking sleeve 5 and a nut 6, wherein the movable clamp head 1 and the static clamp head 2 are respectively sleeved outside the test piece 3, the lower end of the movable clamp head 1 is rotationally connected with the lower end of the static clamp head 2, the rocker mechanism is arranged at the tops of the movable clamp head 1 and the static clamp head 2, the plug 4 is in threaded connection with the static clamp head 2 and is positioned at the left side of the static clamp head 2, the tight jacking sleeve 5 is sleeved outside the test piece 3 and is positioned at the right end of the test piece 3, and the nut 6 is sleeved outside the right end of the tight jacking sleeve 5.

In the present embodiment, the movable chuck 1 is opened by operating the rocker mechanism, and a test piece 3 is loaded; and then reversely operating the rocker mechanism to close the movable clamp head 1 and tightly clamp the test piece 3, so that the movable clamp head 1 and the static clamp head 2 can clamp the test piece 3, the plug 4 is connected to the static clamp head 2 by threads and is used for sealing the test piece 3 and installing an experimental pipeline, the tight fixed sleeve is fixed on the test piece 3 first, and when the nut 6 is screwed, the tight fixed sleeve and the conical surface on the nut 6 are mutually extruded, so that the inner diameter of the tight fixed sleeve is contracted and deformed to clamp the test piece 3, and the zigzag tip of the inner surface of the tight fixed sleeve penetrates into the test piece 3 to prevent the tight fixed sleeve from falling off after bearing pressure. The pipe clamp is easy to install, high in efficiency and reliable in sealing.

Further, the rocker mechanism comprises a crank 7, a pull rod 8 and a pin shaft 9, one end of the pull rod 8 is rotatably connected with the upper end of the static chuck 2, and one end of the pin shaft 9 penetrates through the upper end of the dynamic chuck 1 and the crank 7 and is fixedly connected with the other end of the pull rod 8.

In this embodiment, the movable chuck 1 and the static chuck 2 are hinged together through the pin shaft 9, the crank 7 is operated to drive the pull rod 8 to move, the movable chuck 1 is opened, the crank 7 is operated reversely, the movable chuck 1 can be closed, the test piece 3 is clamped, and the movable chuck 1 and the static chuck 2 can clamp the test piece 3 due to a large force increasing effect when the crank 7 and the pull rod 8 are collinear.

Further, the pipe pressure experiment clamp further comprises a first O-shaped ring 10, and the first O-shaped ring 10 is arranged at the joint of the plug 4 and the static chuck 2.

In the present embodiment, the sealing effect between the plug 4 and the static chuck 2 is improved by the provision of the first O-ring 10, thereby improving the sealing performance of the device.

Further, the pipe pressure experiment clamp further comprises a second O-shaped ring 11, and the second O-shaped ring 11 is arranged on the right inner wall of the test piece 3.

In the present embodiment, the sealing performance of the device is improved by the provision of the second O-ring 11.

The foregoing disclosure is only illustrative of one or more preferred embodiments of the present application, and it is not intended to limit the scope of the claims hereof, as persons of ordinary skill in the art will understand that all or part of the processes for practicing the embodiments described herein may be practiced with equivalent variations in the claims, which are within the scope of the application.

Claims (4)

1. A pipe pressure experiment clamp is characterized in that,

The device comprises a movable chuck, a static chuck, a test piece, a plug, a rocker mechanism, a tight jacking sleeve and a nut, wherein the movable chuck and the static chuck are respectively sleeved outside the test piece, the lower end of the movable chuck is rotationally connected with the lower end of the static chuck, the rocker mechanism is arranged at the top of the movable chuck and the static chuck, the plug is in threaded connection with the static chuck and is positioned at the left side of the static chuck, the tight jacking sleeve is sleeved outside the test piece and is positioned at the right end of the test piece, and the nut is sleeved outside the right end of the tight jacking sleeve.

2. The pipe pressure test fixture according to claim 1, wherein,

The rocker mechanism comprises a crank, a pull rod and a pin shaft, one end of the pull rod is rotatably connected with the upper end of the static chuck, and one end of the pin shaft penetrates through the upper end of the movable chuck and the crank and is fixedly connected with the other end of the pull rod.

3. The pipe pressure test fixture according to claim 2, wherein,

The pipe pressure experiment clamp further comprises a first O-shaped ring, and the first O-shaped ring is arranged at the joint of the plug and the static chuck.

4. The pipe pressure test fixture according to claim 3, wherein,

The pipe pressure experiment clamp further comprises a second O-shaped ring, and the second O-shaped ring is arranged on the right inner wall of the test piece.