A type seal joint

Abstract

The utility model relates to building material technical field, concretely relates to a kind of A type sealing joint, including plug, clamp, O-ring, joint main body, multiple clamping blocks, multiple bolts, air release valve and test piece, the inner wall of each clamping block has barb.In the experiment, when installing test piece, first, tighten clamp, while fixing plug and joint main body, O-ring is compressed, so that O-ring produces radial deformation to seal joint main body and test piece;Then tighten clamping multiple bolts, so that multiple clamping blocks are inwards along radial and hold tightly test piece, simultaneously make barb pierce into test piece, prevent test piece from coming out of the device after filling pressure medium;Plug and test piece constitute airtight pressure-bearing space, for accommodating pressure medium to detect test piece internal pressure resistance performance;The sealing joint test efficiency is high, sealing is reliable, since more standard parts are used, manufacturing cost is low.

Description

TECHNICAL FIELD

[0001] The utility model relates to building material technical field especially relates to a type A sealing joint. BACKGROUND

[0002] Polyethylene (PE), polypropylene (PP) is the commonly used pipe material of building cold and hot water pipeline system in our country, when doing static liquid pressure strength, internal pressure experiment to various pipe materials, need to use sealing joint to block up pipe material two end portions, and hit the pressure water exceeding 10MPa.

[0003] At present, type A sealing joint installs test piece difficultly, and the efficiency is low, needs a large amount of manual work, and part type A sealing joint sealing is unreliable, and easily occurs leakage, in addition, when large diameter test piece, type A sealing joint stress is big, sealing joint is easy to come off from test piece after pressure bearing, can not be reliably fixed on test piece, leads to experiment failure. UTILITY MODEL CONTENTS

[0004] The utility model discloses a type A sealing joint, solve the present type A sealing joint installation test piece difficultly in prior art, and the efficiency is low, needs a large amount of manual work, and part type A sealing joint sealing is unreliable, and easily occurs leakage, in addition, when large diameter test piece, type A sealing joint stress is big, sealing joint is easy to come off from test piece after pressure bearing, can not be reliably fixed on test piece, leads to experiment failure.

[0005] To realize above-mentioned purpose, the utility model provides a type A sealing joint, including plug, clamp, O ring, joint body, multiple clamping blocks, multiple bolts, air release valve and test piece, the inner wall of each clamping block has barb, the joint body is set up in the outside of test piece, multiple clamping blocks are set up respectively in the inside of joint body, and are in contact with the outside of test piece respectively, multiple bolts are respectively passed through joint body, and are adapted with corresponding clamping block, the O ring is fixedly connected with the right -hand member of plug, the plug is set up in the outside of test piece, the clamp is set up in the outside of test piece, and is adapted with plug and joint body, the air release valve is set up on plug.

[0006] Among them, the clamp includes front hoop, rear hoop, fastening rod, fixed rod and plug rod, two first lugs are formed on the front hoop and the rear hoop respectively, two second lugs are formed on the front hoop, a third lug is formed on the rear hoop, the front hoop and the rear hoop are set up in the outside of test piece respectively, the fixed rod is arranged between the two first lugs, one end of the fastening rod is set up in the outside of the fixed rod, the other end of the fastening rod is in contact with the two first lugs, and the plug rod is respectively penetrated through two second lugs and the third lug.

[0007] The plug has a first retaining ring at its right end, a second retaining ring at its left end, and a third retaining ring at the right end of the first retaining ring. The first retaining ring and the second retaining ring are in contact and abut against each other, and the first retaining ring and the second retaining ring are located inside the front clamp and the rear clamp, respectively. The O-ring is fixedly connected to the third retaining ring and is located at the right end of the third retaining ring. The O-ring abuts against the left end of the connector body.

[0008] The type A sealing joint further includes multiple elastic retaining rings, which are respectively sleeved on the corresponding bolts and located inside the corresponding clamping blocks.

[0009] The type A sealing joint further includes two fixing blocks, each of which has a hole. The two fixing blocks are fixedly connected to the plug and are located at the left end of the plug.

[0010] This utility model discloses a type A sealing joint. During the installation of the test specimen in an experiment, firstly, the clamp is tightened, fixing the plug and the joint body while simultaneously pressing the O-ring, causing radial deformation of the O-ring to seal the joint body and the test specimen. Then, multiple clamping bolts are tightened, causing multiple clamping blocks to radially inwardly grip the test specimen, while simultaneously causing barbs to pierce the specimen, preventing it from detaching from the device after being filled with pressure medium. The plug and the test specimen form a sealed pressure-bearing space to contain the pressure medium for testing the specimen's internal pressure resistance. This sealing joint offers high testing efficiency and reliable sealing, and due to the use of numerous standard parts, its manufacturing cost is low. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0013] Figure 2 This is a front view of the entire utility model.

[0014] Figure 3 This is the utility model Figure 2 A sectional view along line AA.

[0015] Figure 4 This is the utility model Figure 3 BB line section view.

[0016] Figure 5 This is a partial structural schematic diagram of the clamp of this utility model.

[0017] 1 - plug, 2 - clamp, 3 - O-ring, 4 - joint body, 5 - clamping block, 6 - bolt, 7 - air release valve, 8 - test piece, 9 - barb, 10 - front clamp, 11 - rear clamp, 12 - fastening rod, 13 - fixing rod, 14 - insertion rod, 15 - first protrusion, 16 - second protrusion, 17 - third protrusion, 18 - first clasp, 19 - second clasp, 20 - third clasp, 21 - elastic retainer, 22 - fixing block, 23 - hole position. DETAILED DESCRIPTION

[0018] The embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings, the embodiments described below by referring to the drawings are exemplary, and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0019] Please refer to Figures 1 to 5 , wherein, Figure 1 is a structural schematic diagram of the whole of the present application, Figure 2 is a front view of the whole of the present application, Figure 3 is a Figure 2 A-A line sectional view of the present application, Figure 4 is a Figure 3 B-B line sectional view of the present application, Figure 5 is a local structural schematic diagram of the clamp 2 of the present application.

[0020] The present application provides a type A sealing joint, comprising a plug 1, a clamp 2, an O-ring 3, a joint body 4, a plurality of clamping blocks 5, a plurality of bolts 6, an air release valve 7 and a test piece 8, the inner wall of each clamping block 5 has a barb 9, the joint body 4 is sleeved on the outside of the test piece 8, a plurality of clamping blocks 5 are arranged in the inside of the joint body 4 respectively and are in contact with the outside of the test piece 8 respectively, a plurality of bolts 6 are respectively penetrated through the joint body 4 and are matched with the corresponding clamping blocks 5, the O-ring 3 is fixedly connected with the right end of the plug 1, the plug 1 is sleeved on the outside of the test piece 8, the clamp 2 is sleeved on the outside of the test piece 8 and is matched with the plug 1 and the joint body 4, and the air release valve 7 is arranged on the plug 1.

[0021] In the embodiment, when the test piece 8 is installed in the experiment, first, the clamp 2 is tightened, the O-ring 3 is compressed while fixing the plug 1 and the joint body 4, the O-ring 3 is radially deformed to seal the joint body 4 and the test piece 8; then the plurality of bolts 6 is tightened, the plurality of clamping blocks 5 is radially inwardly clamped to the test piece 8, while the barbs 9 are inserted into the test piece 8 to prevent the test piece 8 from being separated from the device after being filled with pressure medium; the plug 1 and the test piece 8 form a sealed pressure-bearing space for containing pressure medium to detect the internal pressure resistance of the test piece 8; the air release valve 7 is used for decompression, the sealing joint test is efficient and reliable, and the manufacturing cost is low due to the use of more standard parts.

[0022] Further, the clamp 2 includes a front clamp 10, a rear clamp 11, a fastening rod 12, a fixing rod 13, and an insertion rod 14, the front clamp 10 and the rear clamp 11 are respectively provided with two first protrusions 15, the front clamp 10 is provided with two second protrusions 16, the rear clamp 11 is provided with a third protrusion 17, the front clamp 10 and the rear clamp 11 are respectively sleeved on the outside of the test piece 8, the fixing rod 13 is arranged between the corresponding two first protrusions 15, one end of the fastening rod 12 is sleeved on the outside of the fixing rod 13, the other end of the fastening rod 12 is in contact with the corresponding two first protrusions 15, and the insertion rod 14 penetrates through the two second protrusions 16 and the third protrusion 17.

[0023] In the embodiment, the front clamp 10 and the rear clamp 11 are clamped and fixed by the cooperation of the fastening rod 12 and the corresponding two first protrusions 15, and by the insertion rod 14 penetrating through the two second protrusions 16 and the third protrusion 17, so as to fix the plug 1 and the joint body 4 on the outside of the test piece 8.

[0024] Further, the right end of the plug 1 is provided with a first clasp 18, the left end of the joint body 4 is provided with a second clasp 19, the right end of the first clasp 18 is provided with a third clasp 20, the first clasp 18 is in contact with the second clasp 19, and the first clasp 18 and the second clasp 19 are respectively located in the inside of the front clamp 10 and the rear clamp 11, the O-ring 3 is fixedly connected with the third clasp 20 and located at the right end of the third clasp 20, and the O-ring 3 is in contact with the left end of the joint body 4.

[0025] In the embodiment, the first clasp 18 and the second clasp 19 are clamped and fixed by the front clamp 10 and the rear clamp 11, and the O-ring 3 is connected with the third clasp 20, so that the O-ring 3 can seal the test piece 8 and the joint body 4.

[0026] Further, the A-type sealing joint further comprises a plurality of elastic check rings 21, each of which is sleeved on a corresponding bolt 6 and located inside a corresponding clamp block 5; the A-type sealing joint further comprises two fixing blocks 22, each of which is provided with a hole site 23, and each of the two fixing blocks 22 is fixedly connected with the plug 1 and located at the left end of the plug 1.

[0027] In this embodiment, the two fixing blocks 22 and the corresponding hole sites 23 are arranged, so as to facilitate the installation and connection of the sealing joint and the subsequent device.

[0028] The above disclosure is only one or more preferred embodiments of the present application, which cannot limit the scope of the present application. Those skilled in the art can understand that the implementation of all or part of the above-mentioned embodiments, and the equivalent changes made according to the claims of the present application, still belong to the scope covered by the present application.

Claims

1. A type A sealing joint, characterized in that, Includes plugs, clamps, O-rings, connector body, multiple clamps, multiple bolts, vent valves, and test specimens; Each clamp has barbs on its inner wall. The connector body is fitted over the outside of the specimen. Multiple clamps are respectively located inside the connector body and contact the outside of the specimen. Multiple bolts pass through the connector body and are adapted to the corresponding clamps. The O-ring is fixedly connected to the right end of the plug. The plug is fitted over the outside of the specimen. The clamp is fitted over the outside of the specimen and is adapted to the plug and the connector body. The vent valve is located on the plug.

2. The type A sealing joint as described in claim 1, characterized in that, The clamp includes a front clamp, a rear clamp, a fastening rod, a fixing rod, and a insert rod. The front clamp and the rear clamp each have two first protrusions, the front clamp has two second protrusions, and the rear clamp has a third protrusion. The front clamp and the rear clamp are respectively fitted onto the outside of the specimen. The fixing rod is positioned between the two corresponding first protrusions. One end of the fastening rod is fitted onto the outside of the fixing rod, and the other end of the fastening rod abuts against the two corresponding first protrusions. The insert rod passes through the two second protrusions and the third protrusion.

3. The type A sealing joint as described in claim 2, characterized in that, The plug has a first retaining ring at its right end, a second retaining ring at its left end, and a third retaining ring at the right end of the first retaining ring. The first retaining ring and the second retaining ring are in contact and abut against each other, and the first retaining ring and the second retaining ring are located inside the front clamp and the rear clamp, respectively. The O-ring is fixedly connected to the third retaining ring and is located at the right end of the third retaining ring. The O-ring abuts against the left end of the connector body.

4. The type A sealing joint as described in claim 3, characterized in that, The type A sealing joint also includes multiple elastic retaining rings, which are respectively sleeved on the corresponding bolts and located inside the corresponding clamping blocks.

5. The type A sealing joint as described in claim 4, characterized in that, The type A sealing joint also includes two fixing blocks, each of which has a hole. The two fixing blocks are fixedly connected to the plug and are located at the left end of the plug.

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