CN213332874U

CN213332874U - Manual internal expansion sealing connector

Info

Publication number: CN213332874U
Application number: CN202022372942.6U
Authority: CN
Inventors: 孔祥振; 刘海波; 常宗鑫
Original assignee: Huixinsheng Tianjin Precision Machinery Technology Co ltd
Current assignee: Huixinsheng Tianjin Precision Machinery Technology Co ltd
Priority date: 2020-10-23
Filing date: 2020-10-23
Publication date: 2021-06-01
Anticipated expiration: 2030-10-23

Abstract

The utility model relates to a sealing connection instrument technical field discloses a manual internal expanding sealing connector. The manual internal expanding sealing connector comprises an outer sleeve, a clamping assembly and a pushing assembly, the clamping assembly and the pushing assembly are arranged in the outer sleeve, the clamping assembly comprises a clamping jaw, a mandrel, a first wedge block and a second wedge block, the clamping jaw can be opened or closed, the clamping jaw is movably arranged in the mandrel, the first wedge block and the second wedge block are fixed on the mandrel, the two wedge blocks are symmetrically arranged, the clamping jaw is respectively abutted to the inclined surface of the first wedge block and the inclined surface of the second wedge block, and the clamping jaw can be abutted to the cavity wall of the inner cavity of a workpiece to be tested. The pushing assembly comprises a piston, the piston is slidably arranged in the outer sleeve, one end of the mandrel can be inserted into the inner cavity, the other end of the mandrel is in threaded connection with the piston, an air hole is formed in the piston, the air hole can be filled with test pressure, and the air hole is communicated with the inner cavity. The manual internal expansion sealing connector can be quickly connected with a workpiece to be tested, is simple to operate, improves the testing efficiency and avoids product overstock.

Description

Manual internal expansion sealing connector

Technical Field

The utility model relates to a sealing connection instrument technical field especially relates to a manual internal expanding sealing connector.

Background

With the development of products, the quality requirements of people on the products are higher and higher, so that the workpieces need to be tested before leaving factories, and particularly, the air tightness and the compression strength of the products need to be tested.

For the purpose of connection, it is often necessary to machine a workpiece such as a straight pipe. Before leaving the factory, the straight pipe needs to be subjected to an air tightness test so as to ensure the yield of workpieces. In the prior art, a manual mode is often adopted for testing, the testing efficiency is low, and the product overstock is caused.

Therefore, it is desirable to provide a manual internal expanding sealing connector to solve the above problems.

SUMMERY OF THE UTILITY MODEL

Based on the above, an object of the utility model is to provide a manual internal expanding sealing connector to solve the problem that efficiency of software testing is low that leads to because of artifical test among the prior art.

In order to achieve the purpose, the utility model adopts the following technical proposal:

a manual internal expanding seal connector comprising:

a jacket;

the clamping assembly comprises a clamping jaw, a mandrel, a first wedge block and a second wedge block, the clamping jaw can be opened or closed, the clamping jaw is movably arranged on the mandrel, the first wedge block and the second wedge block are fixed on the mandrel, the first wedge block and the second wedge block are symmetrically arranged, the clamping jaw is respectively abutted against an inclined surface of the first wedge block and an inclined surface of the second wedge block, and the clamping jaw can be abutted against the wall of an inner cavity of a workpiece to be measured;

and the pushing assembly comprises a piston, the piston is slidably arranged in the outer sleeve, one end of the mandrel can be inserted into the inner cavity, the other end of the mandrel is in threaded connection with the piston, an air hole is formed in the piston, the air hole is configured to be filled with test pressure, and the air hole is communicated with the inner cavity.

Further, the pushing assembly further comprises a spring, one end of the spring is connected with the outer sleeve, and the other end of the spring is connected with the piston.

Further, the jack catch has first inclined plane and the second inclined plane of symmetry setting, first inclined plane to first wedge block slope, the inclined plane of first wedge block with first inclined plane butt, the inclined plane of second wedge block with second inclined plane butt.

Furthermore, the clamping jaw is provided with a mounting groove, the clamping assembly further comprises a fixed O-shaped ring, and the fixed O-shaped ring is sleeved in the mounting groove.

Further, the mandrel comprises a connecting part, and the connecting part extends into the outer sleeve and is in threaded connection with the piston.

Further, the dabber still includes the installation department, the installation department with connecting portion integrated into one piece, first wedge with second wedge all is fixed in on the installation department.

Further, a groove is formed in the installation portion, and the first wedge-shaped block and the second wedge-shaped block are fixed in the groove.

Furthermore, the manual internal expansion sealing connector further comprises a sealing O-shaped ring, the sealing O-shaped ring is sleeved in the groove, and the sealing O-shaped ring can be tightly abutted to the wall of the inner cavity.

Furthermore, the manual internal expansion sealing connector further comprises a force application assembly, the force application assembly comprises a handle, the handle is rotatably arranged on the outer sleeve, and the handle can be tightly abutted to the piston.

The utility model has the advantages that:

the utility model provides a manual internal expanding sealing connector is used for the high-speed joint with work piece (straight tube) that awaits measuring, and this manual internal expanding sealing connector includes overcoat, chucking subassembly and promotion subassembly, and the chucking subassembly sets up in the overcoat with the promotion subassembly, and the promotion subassembly is used for promoting chucking subassembly chucking work piece that awaits measuring to in going on of the gas tightness of subsequent test work piece that awaits measuring, in order to guarantee the yield of work piece that awaits measuring, improve efficiency of software testing, avoid the overstock of product. Wherein, the chucking subassembly includes jack catch, dabber, first wedge and second wedge, and the jack catch can open or be closed, and the jack catch activity sets up in the dabber, and first wedge and second wedge all are fixed in the spindle, and first wedge and second wedge symmetry set up, and the jack catch respectively with the inclined plane of first wedge and the inclined plane butt of second wedge, the jack catch can support tightly on the chamber wall of the inner chamber of the work piece that awaits measuring. The pushing assembly comprises a piston, the piston is slidably arranged in the outer sleeve, one end of the mandrel can be inserted into the inner cavity, the other end of the mandrel is in threaded connection with the piston, an air hole is formed in the piston, the air hole can be filled with test pressure, and the air hole is communicated with the inner cavity. Firstly, inserting a mandrel part into a workpiece to be measured; then, to the direction slip piston of keeping away from the work piece that awaits measuring, drive the direction that the work piece that awaits measuring was kept away from to the dabber case and remove, first wedge and second wedge follow the dabber and remove for the jack catch changes with the butt position of two wedges. The inclined plane of the first wedge-shaped block and the inclined plane of the second wedge-shaped block are arranged, so that the clamping jaw is lifted up and further abuts against the cavity wall of the inner cavity of the workpiece to be measured. And filling test pressure into the piston through the air hole, wherein the test pressure enters the inner cavity of the workpiece to be tested so as to test the air tightness of the workpiece to be tested and ensure the yield of the workpiece to be tested. This manual internal expanding sealing connector can with the work piece high-speed joint that awaits measuring, easy operation improves efficiency of software testing, avoids the overstock of product.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts. Wherein:

fig. 1 is a schematic structural diagram of a manual internal expansion sealing connector according to an embodiment of the present invention;

fig. 2 is a partially enlarged view of a portion a in fig. 1.

In the figure:

1-coating; 2-a force application assembly; 3-a clamping assembly; 4-a pushing assembly; 5-sealing the O-shaped ring; 6-workpiece to be measured;

11-a through hole; 21-a handle; 22-a pin shaft; 31-a jaw; 32-a mandrel; 33-a first wedge block; 34-a second wedge; 35-fixing an O-shaped ring; 36-a first shim plate; 37-a second pad; 41-a piston; 42-a spring; 61-lumen;

311-lobe body; 312-a mounting groove; 313-a first bevel; 314-a second bevel; 321-a connecting part; 322-external threads; 323-a mounting portion; 324-a groove; 325 — a second channel; 411-air vent; 412-a first channel; 413-internal thread.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not to be construed as limitations of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" are to be construed broadly and can include, for example, fixed or removable connections, mechanical or electrical connections, direct connections, indirect connections through an intermediary, communication between two elements, or an interaction between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description of the present invention, unless otherwise expressly specified or limited, the first feature "on" or "under" the second feature may include both the first and second features being in direct contact, and may also include the first and second features being in contact, not in direct contact, but with another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

As shown in fig. 1-2, the present embodiment provides a manual internal expansion sealing connector for fast connection with a workpiece 6 (straight pipe) to be tested, the manual internal expansion sealing connector includes an outer sleeve 1, a clamping component 3 and a pushing component 4, the clamping component 3 and the pushing component 4 are disposed in the outer sleeve 1, and the pushing component 4 is used for pushing the clamping component 3 to clamp the workpiece 6 to be tested, so as to facilitate subsequent testing of the airtightness of the workpiece 6 to be tested, so as to ensure the yield of the workpiece 6 to be tested, improve the testing efficiency, and avoid overstock of the product.

Wherein, chucking assembly 3 includes jack catch 31, dabber 32, first wedge 33 and second wedge 34, jack catch 31 can open or be closed, jack catch 31 activity sets up on dabber 32, first wedge 33 and second wedge 34 are all fixed in on dabber 32, first wedge 33 and second wedge 34 symmetry set up, jack catch 31 respectively with the inclined plane of first wedge 33 and the inclined plane butt of second wedge 34, jack catch 31 can support tightly on the chamber wall of the inner chamber 61 of work piece 6 that awaits measuring. The pushing assembly 4 comprises a piston 41, the piston 41 is slidably disposed in the jacket 1, one end of the mandrel 32 can be inserted into the inner cavity 61, the other end of the mandrel is in threaded connection with the piston 41, an air hole 411 is formed in the piston 41, the air hole 411 can be filled with test pressure, and the air hole 411 is communicated with the inner cavity 61. Firstly, the mandrel 32 is partially inserted into the workpiece 6 to be measured; then, the piston 41 is slid in the direction away from the workpiece 6 to be measured, the mandrel 32 box is driven to move in the direction away from the workpiece 6 to be measured, and the first wedge block 33 and the second wedge block 34 move along with the mandrel 32, so that the claw 31 and the two wedge blocks slide relatively, that is, the abutting positions of the claw 31 and the two wedge blocks change. The inclined plane of the first wedge block 33 and the inclined plane of the second wedge block 34 are arranged, so that the claw 31 is lifted, and the claw 31 is supported by the first wedge block 33 and the second wedge block 34, so that the claw 31 is stably opened and is abutted against the cavity wall of the inner cavity 61 of the workpiece 6 to be measured. The piston 41 is filled with the test pressure through the air hole 411, and the test pressure enters the inner cavity 61 of the workpiece 6 to be tested so as to test the air tightness of the workpiece 6 to be tested and ensure the yield of the workpiece 6 to be tested. This manual internal expanding sealing connector can with the 6 high-speed joint of work pieces that await measuring, easy operation improves efficiency of software testing, avoids the overstock of product.

Further, the jaws 31 are of a split design, so that the jaws 31 can be closed and opened to clamp the workpiece 6 to be measured. The jaw 31 includes a plurality of petals 311, and the petals 311 are arranged at intervals along the circumference of the mandrel 32.

Further, the inclined surface of the first wedge block 33 includes a first end and a second end, the first end is close to the second wedge block 34, the second end is far away from the second wedge block 34, and the height of the first end is lower than that of the second end. The second wedge-shaped block 34 and the first wedge-shaped block 33 are identical in structure and are symmetrically arranged.

As shown in fig. 1, the pushing assembly 4 further includes a spring 42, and one end of the spring 42 is connected to the housing 1 and the other end is connected to the piston 41. In the initial state, the spring 42 is in a compressed state. After the constraint on the piston 41 is removed, the piston 41 slides in a direction away from the workpiece 6 to be tested under the elastic force of the spring 42, so as to drive the clamping jaws 31 to clamp the workpiece 6 to be tested, thereby facilitating the subsequent testing work.

Specifically, the number of turns and the wire diameter of the spring 42 may determine the magnitude of the elastic force of the spring 42, thereby affecting the sliding of the piston 41. The appropriate number of turns and wire diameter may be selected for the spring 42 depending on the application.

Further, the mandrel 32 includes a connecting portion 321, and the connecting portion 321 extends into the casing 1 and is threadedly connected with the piston 41.

Further, the manual internal expanding sealing connector further comprises a force application component 2, the force application component 2 comprises a handle 21, the handle 21 is rotatably arranged on the outer sleeve 1, and the handle 21 can be tightly abutted to the piston 41. In the initial state, the handle 21 is pressed against the piston 41 and the spring 42 is in a compressed state. The handle 21 is designed according to human mechanics and labor-saving levers, so that force can be conveniently applied to the handle 21. When the mandrel 32 is partially inserted into the workpiece 6 to be tested, the handle 21 is rotated, the abutting force on the piston 41 is cancelled, the piston 41 slides in the direction away from the workpiece 6 to be tested under the action of the elastic force of the spring 42, and then the clamping jaws 31 are driven to open, so that the workpiece 6 to be tested is clamped, and the subsequent testing work is facilitated. After the test is finished, the handle 21 is rotated reversely, the handle 21 abuts against the piston 41, and the piston 41 slides reversely, so that the clamping jaws 31 are closed, and the workpiece 6 to be tested is pulled out.

Further, the force application component 2 further comprises a pin 22, the pin 22 is mounted on the outer sleeve 1, and the handle 21 is rotatably disposed on the pin 22.

As shown in fig. 2, the mandrel 32 further includes a mounting portion 323, the mounting portion 323 is integrally formed with the connecting portion 321, and the first wedge block 33 and the second wedge block 34 are fixed to the mounting portion 323.

Further, a groove 324 is formed in the mounting portion 323, and the first wedge block 33 and the second wedge block 34 are fixed in the groove 324.

Further, the manual internal expansion sealing connector further comprises a sealing O-shaped ring 5, the sealing O-shaped ring 5 is sleeved in the groove 324, and the sealing O-shaped ring 5 can be tightly abutted to the wall of the inner cavity 61. The arrangement of the sealing O-shaped ring 5 ensures that the test pressure does not leak and the test accuracy is ensured.

Further, the piston 41 is provided with an internal thread 413, the connecting portion 321 is provided with an external thread 322, and the internal thread 413 and the external thread 322 are connected in a threaded manner.

Furthermore, the outer sleeve 1 is provided with a through hole 11, and the connecting part 321 extends into the outer sleeve 1 through the through hole 11.

As shown in fig. 1 and 2, the pawl 31 has a first inclined surface 313 and a second inclined surface 314 which are symmetrically arranged, the first inclined surface 313 inclines towards the first wedge block 33, the inclined surface of the first wedge block 33 abuts against the first inclined surface 313, and the inclined surface of the second wedge block 34 abuts against the second inclined surface 314. Specifically, the inclined direction of the first inclined surface 313 is the same as the inclined direction of the inclined surface of the first wedge block 33, and the inclined direction of the second inclined surface 314 is the same as the inclined direction of the inclined surface of the second wedge block 34.

Furthermore, the jaw 31 is provided with an installation groove 312, the clamping assembly 3 further comprises a fixing O-ring 35, and the fixing O-ring 35 is sleeved in the installation groove 312. The provision of a fixed O-ring 35 allows a plurality of petals 311 to be connected together to effect the opening or closing of jaws 31.

Further, the clamping assembly 3 further comprises a first backing plate 36, one end of the first backing plate 36 abuts against the first wedge 33, and the other end abuts against the outer sleeve 1. When the piston 41 slides in a direction away from the workpiece 6 to be measured, the first pad plate 36 is pressed.

Further, the clamp assembly 3 further includes a second shim plate 37, and one end of the second shim plate 37 abuts against the mounting portion 323 and the other end abuts against the sealing O-ring 5.

Further, the piston 41 is provided with a first channel 412, the mandrel 32 is provided with a second channel 325, the first channel 412 is communicated with the air hole 411, the first channel 412 is also communicated with the second channel 325, and the second channel 325 is communicated with the inner cavity 61. The piston 41 is filled with a test pressure through the air hole 411, and the test pressure sequentially passes through the first passage 412 and the second passage 325 and enters the inner cavity 61 of the workpiece 6 to be tested. And testing whether the air tightness of the workpiece 6 to be tested meets the standard or not by filling the testing pressure (the highest pressure can reach 1MPa), so that the yield of the workpiece 6 to be tested is ensured. Specifically, internal threads 413 are disposed within the first passage 412.

In the present embodiment, the handle 21 is made of polyoxymethylene, the claw 31, the first wedge 33 and the second wedge 34 are made of stainless steel 431, and the spring 42 is made of stainless steel 316, but it is not limited to the above.

It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims

1. A manual internal expanding seal connector, comprising:

a jacket (1);

the clamping assembly (3) comprises a clamping jaw (31), a mandrel (32), a first wedge-shaped block (33) and a second wedge-shaped block (34), the clamping jaw (31) can be opened or closed, the clamping jaw (31) is movably arranged on the mandrel (32), the first wedge-shaped block (33) and the second wedge-shaped block (34) are both fixed on the mandrel (32), the first wedge-shaped block (33) and the second wedge-shaped block (34) are symmetrically arranged, the clamping jaw (31) is respectively abutted to the inclined surface of the first wedge-shaped block (33) and the inclined surface of the second wedge-shaped block (34), and the clamping jaw (31) can be abutted to the cavity wall of an inner cavity (61) of a workpiece (6) to be tested;

the pushing assembly (4) comprises a piston (41), the piston (41) is slidably arranged in the outer sleeve (1), one end of the mandrel (32) can be inserted into the inner cavity (61), the other end of the mandrel is in threaded connection with the piston (41), an air hole (411) is formed in the piston (41), the air hole (411) is configured to be filled with test pressure, and the air hole (411) is communicated with the inner cavity (61).

2. The manual internal expanding seal connector according to claim 1, wherein the pushing assembly (4) further comprises a spring (42), one end of the spring (42) is connected with the outer sleeve (1), and the other end is connected with the piston (41).

3. The manual internal expanding seal connector according to claim 1, wherein the pawl (31) has a first inclined surface (313) and a second inclined surface (314) which are symmetrically arranged, the first inclined surface (313) inclines towards the first wedge block (33), the inclined surface of the first wedge block (33) is abutted with the first inclined surface (313), and the inclined surface of the second wedge block (34) is abutted with the second inclined surface (314).

4. The manual internal expanding sealing connector as claimed in claim 1, wherein a mounting groove (312) is formed on the clamping jaw (31), the clamping assembly (3) further comprises a fixing O-ring (35), and the fixing O-ring (35) is sleeved in the mounting groove (312).

5. The manual internal expanding seal connector according to claim 1, wherein the mandrel (32) comprises a connecting portion (321), and the connecting portion (321) extends into the outer sleeve (1) and is in threaded connection with the piston (41).

6. The manual internal expanding seal connector according to claim 5, wherein the mandrel (32) further comprises a mounting portion (323), the mounting portion (323) is integrally formed with the connecting portion (321), and the first wedge block (33) and the second wedge block (34) are fixed on the mounting portion (323).

7. The manual internal expanding sealing connector as claimed in claim 6, wherein the mounting portion (323) is provided with a groove (324), and the first wedge block (33) and the second wedge block (34) are fixed in the groove (324).

8. The manual internal expanding sealing connector according to claim 7, further comprising a sealing O-ring (5), wherein the sealing O-ring (5) is sleeved in the groove (324), and the sealing O-ring (5) can abut against the wall of the inner cavity (61).

9. The manual internal expanding sealing connector according to claim 1, further comprising a force application component (2), wherein the force application component (2) comprises a handle (21), the handle (21) is rotatably disposed on the outer sleeve (1), and the handle (21) can abut against the piston (41).