CN212340571U - Gas tightness testing tool - Google Patents

Abstract

The utility model discloses an air tightness test tool, this air tightness test tool includes the base, the force sensor device, closing device, butt device and frock piece, the force sensor device is established on the base, closing device sets up with the force sensor device relatively, frock piece links to each other with one among force sensor device and the closing device, frock piece is used for the installation part that awaits measuring, the butt device includes the sleeve, depression bar and moving part, another in telescopic one end and the force sensor device and the closing device links to each other, the other end only supports on frock piece, the one end of depression bar only supports on force sensor device or closing device, the cooperation has the moving part on the other end of depression bar, the moving part can only support on the part that awaits measuring. The gas tightness testing tool can be adapted to different parts to be tested, the parts to be tested can be mounted and dismounted very conveniently, and pressure can be applied to a sealing surface of the parts to be tested to meet the testing requirement under the pressurizing condition.

Description

Gas tightness testing tool

Technical Field

The utility model relates to a check out test set technical field especially relates to an air tightness testing tool.

Background

At present, a plurality of precise parts need to be confirmed whether the sealing performance can meet the use requirement, the air tightness test has the advantages of no pollution and damage to products and high detection speed, the most original simple mode is to place the products into water and see whether bubbles emerge from the products in the water, but the defect of the mode is very obvious, the products which cannot be stained with water can not be used, and the products need to be dried in time after the detection is finished.

With the popularization of air tightness detection equipment, more air tightness tests with strict requirements can be completed by using a pressure drop type or flow type leakage instrument to be matched with a special air check clamp. The method is characterized in that compressed air is used as a medium, certain pressure is applied to the inner cavity or the outer surface of a product to be detected, and then a high-sensitivity sensor is used for detecting the change of the pressure, so that the tightness of the product to be detected is determined. Therefore, the detection tool matched with the air tightness detector is also a key ring in the air tightness test.

Most of the existing air tightness detection tools have the problems that one tool cannot be used for multiple purposes, bolts are usually adopted to lock and seal in order to achieve a sealing condition, so that the efficiency of assembling and disassembling test parts is low, and the like.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an air tightness testing tool, this air tightness testing tool can adapt in the difference wait to detect the part, and it is very convenient to wait to detect the installation and the dismantlement of part, and can towards waiting to detect the sealed face of part and apply pressure in order to satisfy the detection needs under the pressurization condition.

For realizing the above technical effect, the technical scheme of the utility model as follows:

the utility model discloses an air tightness testing tool, include: a base; the force sensor device is arranged on the base and is provided with an air cavity; the pressing device is slidably arranged on the base and is arranged opposite to the force sensor device, and the pressing device is provided with a gas channel; the tool piece is connected with one of the force sensor device and the pressing device and is provided with an installation groove used for installing a part to be tested; the abutting device comprises a sleeve, a pressing rod and a moving part, the sleeve is sleeved on the pressing rod, one end of the sleeve is connected with the other of the force sensor device and the pressing device, the other end of the sleeve abuts against the tooling part, one end of the pressing rod abuts against the force sensor device or the pressing device, the other end of the pressing rod is provided with a matching groove, and the moving part is matched in the matching groove and abuts against the part to be measured; wherein: a first sealing element is arranged on the abutting surface of the tool part and the abutting device; and a second sealing piece is arranged in the tool piece, and the second sealing piece and the first sealing piece are positioned on two sides of the part to be tested.

In some embodiments, the force sensor apparatus comprises: the sensor seat is connected to the base, and the air cavity is arranged on the sensor seat; a sensor element adjustably disposed within the sensor receptacle; and one end of the induction pipe is abutted against the sensor element, and the other end of the induction pipe is abutted against the pressure lever or the tooling part.

In some optional embodiments, a first sealing groove is formed at one end of the sensor seat facing the compressing device, and a third sealing element is arranged in the first sealing groove.

In some optional embodiments, the force sensor apparatus further comprises: the sensor pressing piece is arranged in the sensor seat and sleeved on the sensor element; the sensor fastening piece is adjustably arranged in the sensor pressing piece along the axial direction of the sensor fastening piece, and one end of the sensor fastening piece is abutted against one side, away from the induction pipe, of the sensor element; the sensor plugging piece is arranged in the sensor pressing piece, the sensor plugging piece is sleeved on one end of the induction tube and is abutted against one side, facing the induction tube, of the sensor element.

In some embodiments, the hermeticity test tool further comprises: a fourth seal member sandwiched between the sensor element and the sensor block member; the fifth sealing element is sleeved on the sensor plugging piece and is positioned between the sensor plugging piece and the sensor pressing piece; and the sixth sealing element is sleeved on the sensor pressing element and is positioned between the sensor pressing element and the sensor seat.

In some embodiments, the compression device comprises: the sliding block is arranged on the base in a sliding manner; and the operating assembly is used for driving the sliding block to slide towards the direction close to or far away from the force sensor device.

In some optional embodiments, the operating assembly comprises: the fixed seat is arranged on the base; the handle is rotatably arranged on the fixed seat; one end of the connecting piece is rotatably connected with the handle; one end of the transmission piece is rotatably connected with the other end of the connecting piece, and the other end of the transmission piece is connected with the sliding block through an adjusting screw rod.

In some embodiments, a second sealing groove is formed in a side of the slider facing the force sensor device, and a seventh sealing element is arranged in the second sealing groove.

In some embodiments, the hermeticity test tool further comprises: the tool placing box is arranged on the base and used for containing a plurality of tool parts.

In some embodiments, a side of the force sensor device facing the pressing device is provided with a first mounting convex ring, and one of the tool part and the abutting device is sleeved on the first mounting convex ring; and one side of the pressing device, which faces the force sensor device, is provided with a second mounting convex ring, and the other of the tooling part and the abutting device is sleeved on the second mounting convex ring.

The air tightness testing tool provided by the embodiment of the utility model has the advantages that as the tool part is provided with the mounting groove for mounting the part to be tested, and the first sealing element and the second sealing element are mounted on the two sides of the mounting groove, the compatibility of various parts to be tested is improved, the mounting and dismounting of the parts to be tested are simplified, the operation by a user is facilitated, the measurement efficiency is improved, the interference of external factors is reduced, and the testing precision is improved; due to the fact that the force sensor device is additionally arranged, the function of adjusting the pressure of the sealing surface of the part to be tested can be achieved by adjusting the position of the force sensor device or the pressing device, the air tightness test can be conducted under the condition that different pressures are applied to the sealing surface of the part to be tested, and the actual use requirements are well met.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

Fig. 1 is a cross-sectional view of a gas tightness testing tool according to an embodiment of the present invention.

FIG. 2 is a sectional view of a partial structure of a gas tightness testing tool according to an embodiment of the present invention

Fig. 3 is a top view of a gas tightness testing tool according to an embodiment of the present invention.

Reference numerals:

1. a base;

2. a force sensor device; 21. a sensor seat; 211. a first seal groove; 212. a first mounting collar; 22. a sensor element; 23. an induction tube; 24. a sensor compression member; 25. a sensor fastener; 26. a sensor block;

3. a pressing device; 31. a slider; 311. a second seal groove; 312. a second mounting collar; 32. an operating component; 321. a fixed seat; 322. a handle; 323. a connecting member; 324. a transmission member; 325. adjusting the screw rod;

4. assembling a workpiece; 41. mounting grooves;

5. an abutment device; 51. a sleeve; 52. a pressure lever; 53. a movable member;

61. a first seal member; 62. a second seal member; 63. a third seal member; 64. a fourth seal member; 65. a fifth seal member; 66. a sixth seal member; 67. a seventh seal member;

7. a tool placing box;

8. a first gas pipe joint;

9. a second air pipe joint;

100. and (5) a part to be tested.

Detailed Description

In order to make the technical problem solved by the present invention, the technical solution adopted by the present invention and the technical effect achieved by the present invention clearer, the technical solution of the present invention will be further explained by combining the drawings and by means of the specific implementation manner.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features for distinguishing between descriptive features, non-sequential, non-trivial and non-trivial. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

A specific structure of the airtightness testing tool according to an embodiment of the present invention will be described below with reference to fig. 1 to 3.

As shown in fig. 1-3, the utility model discloses an air tightness testing tool, which comprises a base 1, a force sensor device 2, a pressing device 3, a butting device 5 and a tooling piece 4, wherein the force sensor device 2 is arranged on the base 1, the force sensor device 2 has an air cavity, the pressing device 3 is arranged on the base 1 in a sliding way and is opposite to the force sensor device 2, the pressing device 3 is provided with an air channel, the tooling piece 4 is connected with one of the force sensor device 2 and the pressing device 3, the tooling piece 4 is provided with a mounting groove 41, the mounting groove 41 is used for mounting a part 100 to be tested, the butting device 5 comprises a sleeve 51, a pressing rod 52 and a moving part 53, the sleeve 51 is sleeved on the pressing rod 52, one end of the sleeve 51 is connected with the other of the force sensor device 2 and the pressing device 3, the other end of the sleeve abuts on the tooling piece 4, one end of the pressing rod 52 abuts on the force sensor device 2 or the, the other end of the pressure lever 52 is provided with a matching groove, the movable part 53 is matched in the matching groove and is abutted against the part 100 to be tested, the abutting surface of the tooling part 4 and the abutting device 5 is provided with a first sealing piece 61, the tooling part 4 is internally provided with a second sealing piece 62, and the second sealing piece 62 and the first sealing piece 61 are positioned at two sides of the part 100 to be tested.

First, in the present embodiment, depending on the part 100 to be measured, the tool 4 can be connected to one of the force sensor device 2 and the pressing device 3, and the abutting device 5 can be connected to the other of the force sensor device 2 and the pressing device 3. For simplicity, the tool 4 is connected to the pressing device 3, and the abutting device 5 is connected to the force sensor device 2. When the tooling part 4 is connected with the force sensor device 2, the abutting device 5 is connected with the pressing device 3, and the working principle of the air tightness testing tool can be deduced according to description.

It can be understood that, when the air tightness testing tool of the present embodiment is used, different tooling parts 4 can be replaced according to the size and type of the part to be tested 100, and because the tooling parts 4 and the part to be tested 100 are in a sleeved connection, the part to be tested 100 and the tooling parts 4 are very simple and convenient to mount and dismount. From this, when the various part 100 that awaits measuring of compatibility of the gas tightness testing tool of this embodiment, can also simplify the installation and the dismantlement of part 100 that awaits measuring, made things convenient for user operation, promoted measurement of efficiency. Meanwhile, the first sealing element 61 and the second sealing element 62 are additionally arranged, so that the mounting groove 41 of the tooling part 4 is a sealed space, external gas cannot enter the mounting groove 41, and test airflow can only flow to one side of the force sensor device 2 from the part 100 to be tested, so that the detection precision is ensured, and the external interference is reduced.

It should be added that, after the part 100 to be measured is installed on the tooling part 4, the tooling part 4 is installed on the compressing device 3, and the abutting device 5 is installed on the upper force sensor device 2, so that the force sensor device 2, the abutting device 5, the tooling part 4 and the compressing device 3 are on the same horizontal line, at this time, the compressing device 3 is adopted to drive the tooling part 4 to move or the force sensor device 2 is adopted to drive the compression rod 52 to change the pressure of the moving part 53 on the part 100 to be measured, thereby realizing the function of adjusting the pressure of the sealing surface of the part 100 to be measured, so that the airtightness test can be performed under the condition of applying different pressures to the sealing surface of the part 100 to be measured, and better meeting the actual use requirement.

It should be additionally noted that after the installation work is completed, the air tightness tester may be connected to one of the air passage and the air cavity through the air tube, and the other one of the air passage and the air cavity is connected to the air source, and the air source is opened. Assuming that the air tightness tester is connected with the air channel through the air pipe, the air source is connected with the air cavity, the air of the air source flows to the abutting device 5 after entering the air cavity, the air can flow to the end of the pressure rod 52 provided with the movable part 53 from the gap between the sleeve 51 and the pressure rod 52, and then reaches the part 100 to be tested, and if the air tightness of the part 100 to be tested is intact, the air cannot pass through the part 100 to be tested. If there is a leak in the part 100, the gas will pass through the part 100 and enter the gas passage, and thus enter the gas tightness tester. That is to say, in the actual detection process, if the air-tightness tester senses the air pressure, it indicates that the part to be tested 100 has a leak, and if the air-tightness tester cannot sense the air pressure, it indicates that the sealing performance of the part to be tested 100 is good.

The utility model discloses gas tightness testing tool, because frock piece 4 is equipped with the mounting groove 41 that is used for installing the part 100 that awaits measuring, and the both sides of mounting groove 41 are installed first sealing member 61 and second sealing member 62, promoted the compatibility to various parts 100 that await measuring, simplified the installation and the dismantlement of part 100 that awaits measuring, made things convenient for user's operation, promoted measurement efficiency, reduced the interference of external factor, promoted the test accuracy; due to the fact that the force sensor device 2 is additionally arranged, the function of adjusting the pressure of the sealing surface of the part to be measured 100 can be achieved by adjusting the position of the force sensor device 2 or the pressing device 3, the air tightness experiment can be conducted under the condition that different pressures are applied to the sealing surface of the part to be measured 100, and actual use requirements are well met.

It should be additionally noted that, in the present invention, the movable element 53 may be selected differently according to the type of the component 100 to be tested, and the movable element 53 may be any shape such as a sphere, a cube, an ellipsoid, and the like, and the shape, material, and size of the movable element 53 are not limited herein.

Preferably, the sleeve 51 is provided with the gas outlet towards the one end of moving part 53, because in the actual detection process, the detection air current can only flow to moving part 53 from the gap of sleeve 51 and depression bar 52, be unfavorable for the air current to flow when the gap is less, and the sleeve 51's one end towards moving part 53 is provided with the gas outlet, and the detection air current can flow to moving part 53 from the gas outlet to convenient experiment goes on.

In some embodiments, as shown in fig. 1-2, the force sensor device 2 includes a sensor base 21, a sensor element 22, and a sensor tube 23, the sensor base 21 is connected to the base 1, the air chamber is disposed on the sensor base 21, the sensor element 22 is adjustably disposed in the sensor base 21, one end of the sensor tube 23 abuts against the sensor element 22, and the other end abuts against the pressure rod 52 or the tool 4. It can be understood that the sensing tube 23 is used as a force transmission member between the sensor element 22 and the pressing rod 52 or the tool 4, so that the sensor element 22 is prevented from directly contacting the pressing rod 52 or the tool 4, the measurement accuracy of the sensor element 22 is ensured, and the use safety of the sensor element 22 is well protected.

In some alternative embodiments, as shown in fig. 2, the end of the sensor seat 21 facing the compressing device 3 is provided with a first sealing groove 211, and the third sealing element 63 is arranged in the first sealing groove 211. It can be understood that, when sleeve 51 is connected on sensor seat 21, the connection gap of sleeve 51 and sensor probably can make outside gas get into the air cavity, also probably can make the air current in the air cavity run out from connecting the gap, can disturb the experimental result like this, and the utility model discloses in, sensor seat 21 is equipped with first seal groove 211 towards the one end of closing device 3, is equipped with third sealing member 63 in first seal groove 211 and has guaranteed sleeve 51 and sensor seat 21's connection leakproofness to reduce the interference of outside air current to the experimental result, promoted the test accuracy.

In some alternative embodiments, as shown in fig. 1-2, the force sensor device 2 further includes a sensor pressing member 24, a sensor fastening member 25, and a sensor blocking member 26, the sensor pressing member 24 is disposed in the sensor housing 21 and sleeved on the sensor element 22, the sensor fastening member 25 is adjustably disposed in the sensor pressing member 24 along the axial direction thereof, one end of the sensor fastening member 25 abuts against a side of the sensor element 22 facing away from the sense tube 23, the sensor blocking member 26 is disposed in the sensor pressing member 24, and the sensor blocking member 26 is sleeved on one end of the sense tube 23 and abuts against a side of the sensor element 22 facing the sense tube 23.

It can be understood that the sensor that adds compresses tightly piece 24, sensor fastener 25, sensor shutoff piece 26 can ensure sensor element 22 in the inside stability of air cavity on the one hand, and on the other hand, sensor compresses tightly piece 24, sensor fastener 25, sensor shutoff piece 26 and can constitute multilayer labyrinth seal structure, avoids the gaseous exhaust in outside gas entering air cavity and the air cavity to reduced the interference of outside air current to the experimental result, promoted measurement accuracy.

In some embodiments, as shown in fig. 2, the airtightness testing tool further comprises a fourth seal 64, a fifth seal 65 and a sixth seal 66, the fourth seal 64 is sandwiched between the sensor element 22 and the sensor block 26, the fifth seal 65 is sleeved on the sensor block 26 and is located between the sensor block 26 and the sensor pressing member 24, and the sixth seal 66 is sleeved on the sensor pressing member 24 and is located between the sensor pressing member 24 and the sensor holder 21.

It can be understood that the fourth sealing element 64 improves the connection sealing performance between the sensor element 22 and the sensor plugging element 26, the fifth sealing element 65 improves the connection sealing performance between the sensor plugging element 26 and the sensor pressing element 24, and the sixth sealing element 66 improves the connection sealing performance between the sensor pressing element 24 and the sensor seat 21, so that the sealing performance inside the whole force sensor device 2 is ensured, it is ensured that the detection gas can only enter the gas cavity from a specific connector, the external gas flow to the gas cavity is avoided, or the phenomenon that the detection gas runs out to the outside from the gas cavity occurs, the experimental error is reduced, and the detection precision of the gas tightness experiment is improved.

In some embodiments, as shown in fig. 1-2, the pressing device 3 includes a sliding block 31 and an operating component 32, the sliding block 31 is slidably disposed on the base 1, and the operating component 32 is configured to drive the sliding block 31 to slide toward or away from the force sensor device 2. It can be understood that, with the frock piece 4 installation slider 31 and with butt device 5 installation on last force sensor device 2, the experimenter can use operation assembly 32 to compress tightly butt device 5 to frock piece 4, has guaranteed that the moving part 53 on the depression bar 52 can stable crimping on the part 100 that awaits measuring to ensure the stable of going on of gas tightness experiment.

In some alternative embodiments, as shown in fig. 1-2, the operating assembly 32 includes a fixing seat 321, a handle 322, a connecting member 323, a transmission member 324, and an adjusting screw 325, the fixing seat 321 is disposed on the base 1, the handle 322 is rotatably disposed on the fixing seat 321, one end of the connecting member 323 is rotatably connected to the handle 322, one end of the transmission member 324 is rotatably connected to the other end of the connecting member 323, and the other end of the transmission member 324 is connected to the sliding block 31 through the adjusting screw 325.

It can be understood, in the actual operation process, the experimenter only needs operating handle 322 to rotate, handle 322 can drive driving medium 324 through connecting piece 323 and move along the horizontal direction, thereby drive slider 31 is close to or is kept away from the direction motion of force sensor device 2 towards, this kind of twist grip 322's operation mode, and is simple in operation, can also realize slider 31 and drive the function that frock spare 4 compresses tightly butt device 5 by furthest, thereby in the experimentation has been guaranteed, be in on whole experimental gas's the circulation route outside the detection part probably exists the leak point, all there is not the leak point elsewhere. In addition, the adjusting screw 325 can adjust the distance between the sliding block 31 and the transmission piece 324, and is well suitable for various tooling pieces 4, thereby improving the compatibility of the parts to be tested 100 with various models.

In some embodiments, as shown in fig. 2, a second sealing groove 311 is disposed on a side of the slider 31 facing the force sensor device 2, and a seventh sealing member 67 is disposed in the second sealing groove 311. It can be understood that, install frock piece 4 back on slider 31, frock piece 4 and slider 31's joint gap probably can make outside gas get into mounting groove 41, also probably can make the air current in the mounting groove 41 run out from connecting the seam, can disturb the experimental result like this, and the utility model discloses in, slider 31 is equipped with second seal groove 311 towards one side of force transducer device 2, is equipped with seventh sealing member 67 in the first seal groove 211, and the connection leakproofness of frock piece 4 and slider 31 has been guaranteed to seventh sealing member 67 to reduce the interference of outside air current to the experimental result, promoted the measuring accuracy.

In some embodiments, as shown in fig. 3, the air-tightness testing tool further comprises a tool storage box 7, the tool storage box 7 is disposed on the base 1, and the tool storage box 7 is used for accommodating a plurality of tool pieces 4. From this, in the actual experimentation, can change frock spare 4 comparatively conveniently to promote the experimental efficiency of gas tightness experiment.

It should be added here that, in the present invention, the first sealing member 61, the second sealing member 62, the third sealing member 63, the fourth sealing member 64, the fifth sealing member 65, the sixth sealing member 66, and the seventh sealing member 67 may be selected according to actual needs, and the sealing members are not specifically limited herein.

In some embodiments, the side of the force sensor device 2 facing the pressing device 3 is provided with a first mounting convex ring 212, and one of the tooling member 4 and the abutting device 5 is sleeved on the first mounting convex ring 212. It can be understood that, first installation bulge loop 212 is as the connection structure of force sensor device 2 and one in frock piece 4 and the butt device 5, on the one hand made things convenient for install frock piece 4 or butt device 5 on force sensor device 2, the installation and the dismantlement of frock piece 4 and butt device 5 of gas tightness experimentation have been made things convenient for, experimental efficiency has been promoted, another is convenient, the structure of cup jointing can promote the connection leakproofness between frock piece 4 or butt device 5 and force sensor device 2, thereby the possibility of gas leakage has appeared in frock piece 4 or butt device 5 and force sensor device 2's joint gap department, the detection precision of gas tightness experiment has been promoted.

In some embodiments, the side of the pressing device 3 facing the force sensor device 2 is provided with a second mounting convex ring 312, and the other of the tooling member 4 and the abutting device 5 is sleeved on the second mounting convex ring 312. It can be understood that, the second installation bulge loop 312 is as the connection structure of closing device 3 and one of frock piece 4 and butt device 5, on the one hand made things convenient for install frock piece 4 or butt device 5 on closing device 3, the installation and the dismantlement of frock piece 4 and butt device 5 of gas tightness experimentation have been made things convenient for, experimental efficiency has been promoted, another is convenient, the structure of cup jointing can promote the connection leakproofness between frock piece 4 or butt device 5 and the closing device 3, thereby the possibility of gas leakage has appeared in frock piece 4 or butt device 5 and closing device 3's joint gap department, the detection precision of gas tightness experiment has been promoted.

Example (b):

the following describes a specific structure of the airtightness testing tool according to one embodiment of the present invention with reference to fig. 1 to 3

As shown in fig. 1 to 3, the airtightness testing tool includes a base 1, a force sensor device 2, a pressing device 3, an abutting device 5, a tool 4, and a tool storage box 7.

The force sensor device 2 comprises a sensor seat 21, a sensor element 22, a sensing tube 23, a sensor pressing piece 24, a sensor fastening piece 25 and a sensor blocking piece 26, wherein the sensor seat 21 is connected to the base 1, an air cavity is arranged in the sensor seat 21, a first air tube joint 8 communicated with the air cavity is arranged on the sensor seat 21, a first installation convex ring 212 and a first sealing groove 211 surrounding the first installation convex ring 212 are arranged at one end, facing the pressing device 3, of the sensor seat 21, and a third sealing piece 63 is arranged in the first sealing groove 211. The sensor pressing piece 24 is arranged in the sensor seat 21 and sleeved on the sensor element 22, the sensor fastener 25 is adjustably arranged in the sensor pressing piece 24 along the axial direction of the sensor fastener 25, the sensor fastener 25 abuts against one side of the sensor element 22, the sensor plugging piece 26 is arranged in the sensor pressing piece 24 and abuts against the other side of the sensor element 22, one end of the induction tube 23 penetrates through the sensor plugging piece 26 and abuts against the sensor element 22, and the other end of the induction tube is arranged in the first mounting convex ring 212 in a matched mode.

The abutting device 5 comprises a sleeve 51, a pressure lever 52 and a movable member 53, the sleeve 51 is sleeved on the pressure lever 52, one end of the sleeve 51 is sleeved on the first mounting convex ring 212, the other end of the sleeve 51 abuts against the tooling part 4, one end of the pressure lever 52 abuts against the induction pipe 23, the other end of the pressure lever 52 is provided with a matching groove, and the movable member 53 is matched in the matching groove and abuts against the part 100 to be measured.

The pressing device 3 comprises a slide block 31 and an operating component 32, wherein the slide block 31 is slidably arranged on the base 1, and the operating component 32 is used for driving the slide block 31 to slide towards the direction close to or away from the force sensor device 2. The slider 31 is provided with an air passage and a second air pipe joint 9 communicated with the air passage. A second mounting convex ring 312 and a second sealing groove 311 for mounting the second mounting convex ring 312 are arranged on one side of the slider 31 facing the force sensor device 2, and a seventh sealing member 67 is arranged in the second sealing groove 311. The operating assembly 32 includes a fixing base 321, a handle 322, a connecting member 323, a transmission member 324 and an adjusting screw 325, the fixing base 321 is disposed on the base 1, the handle 322 is rotatably disposed on the fixing base 321, one end of the connecting member 323 is rotatably connected to the handle 322, one end of the transmission member 324 is rotatably connected to the other end of the connecting member 323, and the other end of the transmission member 324 is connected to the slider 31 through the adjusting screw 325.

The tool 4 is provided with an installation groove 41, the installation groove 41 is used for installing the part 100 to be tested, and a first sealing element 61 is arranged on the abutting surface of the tool 4 and the sleeve 51; a second sealing element 62 is arranged in the tool part 4, and the second sealing element 62 and the first sealing element 61 are positioned on two sides of the part 100 to be measured.

The airtightness testing tool of this example was used as follows:

the first step is as follows: selecting a tooling part 4 according to the part 100 to be tested, and respectively installing a second sealing element 62, the part 100 to be tested and a first sealing element 61 on the tooling part 4;

the second step is that: installing the seventh sealing element 67 in the second sealing groove 311, and then sleeving the tool part 4 on the second installation boss;

the third step: installing the third sealing element 63 in the first sealing groove 211, and then sleeving the sleeve 51 on the first installation boss;

the fourth step: the handle 322 is rotated, and the tooling part 4 is stopped against the sleeve 51;

the fifth step: adjusting the position of the sensor fastener 25 to adjust the pressure of the movable member 53 on the part 100 to be measured;

and a sixth step: and connecting the first air pipe joint 8 with an air source, and connecting the second air pipe joint 9 with an air inlet of an air tightness and air tightness tester to start an air tightness test.

In the description herein, references to the description of "some embodiments," "other embodiments," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.

Claims (10)

1. A hermeticity testing tool, comprising:

a base (1);

the force sensor device (2) is arranged on the base (1), and the force sensor device (2) is provided with an air cavity;

the pressing device (3) is slidably arranged on the base (1) and is opposite to the force sensor device (2), and the pressing device (3) is provided with a gas channel;

the tool piece (4), the tool piece (4) is connected with one of the force sensor device (2) and the pressing device (3), the tool piece (4) is provided with an installation groove (41), and the installation groove (41) is used for installing a part (100) to be tested;

the abutting device (5), the abutting device (5) comprises a sleeve (51), a pressing rod (52) and a movable part (53), the sleeve (51) is sleeved on the pressing rod (52), one end of the sleeve (51) is connected with the other of the force sensor device (2) and the pressing device (3), the other end of the sleeve (51) abuts against the tooling part (4), one end of the pressing rod (52) abuts against the force sensor device (2) or the pressing device (3), the other end of the pressing rod (52) is provided with a matching groove, and the movable part (53) is matched in the matching groove and abuts against the part to be measured (100); wherein:

a first sealing piece (61) is arranged on the abutting surface of the tool part (4) and the abutting device (5);

and a second sealing element (62) is arranged in the tool part (4), and the second sealing element (62) and the first sealing element (61) are positioned on two sides of the part to be measured (100).

2. The tightness test tool according to claim 1, characterized in that said force sensor device (2) comprises:

the sensor base (21), the sensor base (21) is connected to the base (1), and the air cavity is arranged on the sensor base (21);

a sensor element (22), wherein the sensor element (22) is adjustably arranged in the sensor seat (21);

a sensor tube (23), one end of the sensor tube (23) is abutted against the sensor element (22), and the other end is abutted against the pressure lever (52) or the tool part (4).

3. The tightness test tool according to claim 2, characterized in that the sensor seat (21) is provided with a first sealing groove (211) at an end facing the compression device (3), and a third seal (63) is provided in the first sealing groove (211).

4. The tightness test tool according to claim 2, characterized in that said force sensor device (2) further comprises:

the sensor pressing piece (24) is arranged in the sensor seat (21) and sleeved on the sensor element (22);

a sensor fastening part (25), wherein the sensor fastening part (25) is adjustably arranged in the sensor pressing part (24) along the axial direction of the sensor fastening part, and one end of the sensor fastening part (25) is abutted against one side of the sensor element (22) facing away from the induction pipe (23);

sensor shutoff piece (26), sensor shutoff piece (26) are established in sensor compresses tightly piece (24), sensor shutoff piece (26) cover is established one of induction pipe (23) is served, and end to support sensor element (22) orientation one side of induction pipe (23).

5. The hermeticity test tool of claim 4, further comprising:

a fourth seal (64), the fourth seal (64) being sandwiched between the sensor element (22) and the sensor block (26);

a fifth seal (65), wherein the fifth seal (65) is sleeved on the sensor plugging piece (26) and is positioned between the sensor plugging piece (26) and the sensor pressing piece (24);

a sixth seal (66), wherein the sixth seal (66) is sleeved on the sensor pressing piece (24) and is positioned between the sensor pressing piece (24) and the sensor seat (21).

6. The tightness test tool according to claim 1, characterized in that said compression means (3) comprise:

the sliding block (31), the sliding block (31) can be arranged on the base (1) in a sliding mode;

an operating component (32), wherein the operating component (32) is used for driving the sliding block (31) to slide towards the direction close to or away from the force sensor device (2).

7. The tightness test tool according to claim 6, characterized in that said handling assembly (32) comprises:

the fixing seat (321), the said fixing seat (321) is set up on the said base (1);

the handle (322), the said handle (322) is set up on the said fixed seat (321) rotatably;

the connecting piece (323), one end of the connecting piece (323) is rotatably connected with the handle (322);

one end of the transmission piece (324) is rotatably connected with the other end of the connecting piece (323), and the other end of the transmission piece (324) is connected with the sliding block (31) through an adjusting screw rod (325).

8. The tightness test tool according to claim 6, characterized in that a side of the slider (31) facing the force sensor device (2) is provided with a second sealing groove (311), and a seventh seal (67) is provided in the second sealing groove (311).

9. The hermeticity test tool of any one of claims 1 to 8, further comprising: the tool placing box (7) is arranged on the base (1), and the tool placing box (7) is used for containing a plurality of tool parts (4).

10. The tightness test tool according to any one of claims 1 to 8, wherein a side of the force sensor device (2) facing the pressing device (3) is provided with a first mounting collar (212), and one of the tool part (4) and the abutment device (5) is fitted over the first mounting collar (212);

one side, facing the force sensor device (2), of the pressing device (3) is provided with a second installation convex ring (312), and the other one of the tool part (4) and the abutting device (5) is sleeved on the second installation convex ring (312).

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