CN220206988U - Leak detection device and equipment thereof - Google Patents

Abstract

The utility model discloses a leak detection device and equipment thereof, belonging to the field of leak detection, and comprising a bearing assembly; the sliding component is arranged at one side of the bearing component; the detection assembly is arranged on the sliding assembly, close to the butt joint assembly on one side of the bearing assembly and far away from the bearing assembly and connected with the butt joint assembly; the bearing assembly is used for bearing the product to be tested; the sliding component is used for driving the butt joint component and the detection component to slide so as to be close to the bearing component, so that the butt joint component is connected with a product to be detected, and whether air leakage occurs or not is detected through the detection component; or the bearing component is far away from the butt joint component, so that the butt joint component is separated from the product to be detected, and the detection component stops working. According to the leakage detection device and the leakage detection equipment, on one hand, the phenomena of unstable manual holding, displacement and the like, artificial leakage and the like caused can be avoided, and the detection precision and the detection efficiency are influenced; on the other hand, when the article is guaranteed due to collision, flatulence and other reasons, the detection safety is further improved.

Description

Leak detection device and equipment thereof

Technical Field

The utility model belongs to the field of leakage detection, and particularly relates to a leakage detection device and equipment thereof.

Background

Traditional side leakage device is inflated and deflated through manual hand-held product to be tested generally, and the air pressure change in the product to be tested is monitored to judge whether it is gaseous to leak, and whether the sealing effect meets the demand.

However, on one hand, because the air pressure in the product to be detected changes, when the product to be detected is manually held for processes such as inflation, deflation and the like, the situations such as article displacement and the like can possibly occur, and a detector cannot accurately and fixedly control the product to be detected, so that the detection precision and efficiency are affected; on the other hand, in the inflation and deflation process of the product to be tested, dangerous conditions such as explosion and the like can be caused by excessive inflation, collision and the like, so that the safety of a tester is endangered.

Therefore, how to provide a safe, efficient and stable leakage detection device is a technical problem to be solved in the field

Disclosure of Invention

In view of one or more of the above drawbacks or improvements of the prior art, the present utility model provides a leak detection apparatus and apparatus thereof, which have the advantages of safety, high efficiency and stability.

In order to achieve the above object, the present utility model provides a leak detection device, including a carrier assembly; the sliding component is arranged at one side of the bearing component; the detection assembly is arranged on the sliding assembly, close to the butt joint assembly on one side of the bearing assembly and far away from the bearing assembly and connected with the butt joint assembly;

the bearing assembly is used for bearing the product to be tested;

the sliding component is used for driving the butt joint component and the detection component to slide so as to be close to the bearing component, so that the butt joint component is connected with a product to be detected, and whether air leakage occurs or not is detected through the detection component; or the bearing component is far away from the butt joint component, so that the butt joint component is separated from the product to be detected, and the detection component stops working.

As a further improvement of the utility model, the bearing assembly comprises a bottom plate, a bracket arranged on the bottom plate and a baffle plate;

the bottom plate is used for bearing the bracket and the baffle;

the bracket is used for supporting the product to be tested;

and the baffle is positioned on one side of the bracket and used for fixing the tail end of the product to be tested.

As a further improvement of the utility model, the bracket or/and the baffle plate is provided with a groove for accommodating the position to be detected of the product to be detected.

As a further improvement of the utility model, the sliding component comprises a sliding rail, a sliding piece arranged on the sliding rail and a driving piece with an output end connected with the sliding piece;

the sliding piece is arranged on the sliding rail in a sliding way and is used for driving the detection assembly and the butt joint assembly to be close to or far away from the product to be detected under the action of the driving piece.

As a further improvement of the present utility model, a push plate is provided at the front end of the driving member for stably pushing the sliding member to slide.

As a further improvement of the present utility model, a docking assembly includes: the butt joint plate and the air duct are arranged on the butt joint plate;

the butt joint plate is arranged on the sliding piece and is close to one end of the bracket and used for clamping a product to be tested;

one end of the air duct is connected with the position to be detected of the product to be detected, and the other end of the air duct is connected with the detection assembly.

As a further improvement of the utility model, when a plurality of positions to be detected of the product to be detected are provided, the positions to be detected are connected in series and then connected with the air duct.

As a further improvement of the utility model, the detection assembly comprises a pressure sensor, an inflation valve and a deflation valve;

the pressure sensor is arranged on the sliding piece and is used for detecting pressure change at a port of a product to be detected;

the inflation valve is arranged on the sliding piece and connected with the pressure sensor, and is used for inflating the product to be tested;

the air release valve is arranged on the sliding piece and is used for releasing air filled in the product to be tested.

As a further improvement of the present utility model, a leak detection apparatus further includes: the base, the bearing component, the slip subassembly are integrated to be set up on the base.

In order to achieve the above purpose, the utility model also provides a leak detection device, comprising a leak detection device; a frame; the bracket is arranged on the frame; and a pressure supply device, a display device and a pressure reducing device which are arranged on the bracket; control device

A leak detection apparatus as claimed in any one of the claims;

the frame is arranged below the leak detection device and is used for bearing the leak detection device;

the bracket is arranged above the leak detection device and used for bearing the pressure supply device, the display device and the pressure reducing device;

the pressure supply device, the display device, the pressure reducing device and the control device are connected with the leakage detection device and used for controlling the inflation and deflation and detection processes so as to detect whether the product to be detected leaks gas or not and display the detection result.

In general, the above technical solutions conceived by the present utility model have the beneficial effects compared with the prior art including:

according to the leakage detection device and the leakage detection equipment, a product to be detected is placed on the bearing assembly, then the butt joint assembly and the detection assembly are driven by the sliding assembly to approach the bearing assembly, the butt joint assembly is connected with the product to be detected, and whether the product to be detected leaks air or not is detected by the detection assembly connected with the butt joint assembly; after the detection is finished, the sliding component is far away from the bearing component, so that the butt joint component is separated from the product to be detected, the detection component stops working, the air leakage detection work of one product to be detected is finished, and the next product is placed on the bearing component; according to the leak detection device, the bearing component, the sliding component, the butt joint component and the detection component are integrally arranged, a product to be detected is stably placed through the bearing component, then the butt joint component is driven to be close to the bearing component through the sliding component, the butt joint component is stably connected with the product to be detected on the bearing component, the product to be detected is not required to be manually held and fixed, and then detection work is carried out; on one hand, the phenomena of unstable manual holding, displacement and the like, artificial leakage and the like, and influence on detection precision and detection efficiency can be avoided; on the other hand, when the articles are guaranteed due to collision, flatulence and other reasons, the injury of detection personnel can be avoided, and the detection safety is further improved.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of a detection device of the present utility model;

FIG. 2 is a schematic structural diagram of several embodiments of the detecting device according to the present utility model;

FIG. 3 is a schematic diagram of the structure of an embodiment of the product to be tested according to the present utility model;

FIG. 4 is a schematic structural diagram of a leak detection apparatus and an apparatus thereof according to an embodiment of the present utility model.

Like reference numerals denote like technical features throughout the drawings, in particular: A. a product to be tested; a1, a first pipe to be tested; a2, a second pipe to be tested; B. a base; 1. a leak detection device; 11. a carrier assembly; 111. a bottom plate; 112. a bracket; 113. a baffle; 12. a sliding assembly; 121. a slide rail; 122. a slider; 123. a driving member; 13. a detection assembly; 131. a pressure sensor; 1311. a detection port; 1312. an inflation inlet; 1313. a vent port; 132. an inflation valve; 133. a bleed valve; 1331. a first bleed line; 14. a docking assembly; 141. an abutting plate; 142. an air duct; 143. a seal ring; 2. a frame; 3. a bracket; 4. an air valve control device; 5. a display device; 6. a pressure reducing device; 7. and a control device.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In one embodiment, illustrated in FIG. 1, a leak detection apparatus, optionally but not limited to, includes a carrier assembly 11; a sliding component 12 arranged at one side of the bearing component 11; the detection assembly 13 is arranged on the sliding assembly 12, is close to the docking assembly 14 on one side of the bearing assembly 11, is far away from the bearing assembly 11 and is connected with the docking assembly 14;

the bearing component 11 is used for bearing the product A to be tested;

the sliding component 12 is used for driving the docking component 14 and the detecting component 13 to slide so as to be close to the bearing component 11, so that the docking component 14 is connected with the product A to be detected, and whether air leakage occurs or not is detected through the detecting component 13; or away from the bearing component 11, so that the docking component 14 is separated from the product A to be tested, and the detection component 13 stops working.

In this embodiment, the leakage detection device of the present utility model is provided, a product a to be detected is placed on the bearing component 11, then the sliding component 12 drives the docking component 14 and the detection component 13 to approach the bearing component 11, so that the docking component 14 is connected with the product a to be detected, and whether the product a to be detected leaks air or not is detected by the detection component 13 connected with the docking component 14; after the detection is completed, the sliding component 12 is far away from the bearing component 11, so that the docking component 14 is separated from the product A to be detected, the detection component 13 stops working, the air leakage detection work of one product A to be detected is completed, and the next product is placed on the bearing component 11.

According to the leak detection device, the bearing component 11, the sliding component 12, the butt joint component 14 and the detection component 13 are integrally arranged, firstly, the product A to be detected is stably placed through the bearing component 11, then the butt joint component 14 is driven to be close to the bearing component A through the sliding component 12, and is stably connected with the product A to be detected on the bearing component 11, the product A to be detected is not required to be manually held and fixed, and then detection work is carried out. On one hand, the phenomena of unstable manual holding, displacement and the like, artificial leakage and the like, and influence on detection precision and detection efficiency can be avoided; on the other hand, when the object is exploded or the like due to collision, flatulence or the like, the injury of detection personnel can be avoided, and the detection safety is further improved.

More specifically, the specific detection operations of the detection assembly 13 may optionally, but not exclusively, include: after the docking assembly 14 is docked with the product A to be tested, the detection assembly 13 charges the product A to be tested to enable the internal air pressure to rise, after a certain time, the charging is stopped, whether the port of the product A to be tested has air pressure change or not is detected through the detection assembly 13, the detection time is selectable but not limited to ten seconds, if the air pressure of the port of the product A to be tested changes, the air leakage phenomenon of the product A to be tested is represented, and the preferred detection assembly 13 sends a prompt; if the air pressure of the port of the product A to be detected is unchanged, the air leakage phenomenon of the product A to be detected is not shown, the detection component 13 does not give out a prompt, and after the detection is finished, the detection component 13 can release the air in the product A to be detected, so that the air pressure in the product A to be detected is recovered to be normal, and the air leakage detection work of the whole product A to be detected is completed.

It should be noted that, by controlling the manner, principle and control method of inflation and deflation and detecting the air pressure by the sensor, the technical core of the present utility model is to provide a leak detection device for the bearing assembly 11, the sliding assembly 12, the docking assembly 14 and the detecting assembly 13, and the mechanical structure and the position layout of each assembly, which are not improved on the control method, step and principle of air pressure detection. The utility model has the main functions that: the leakage detection is carried out on the product A to be detected, the problems that the detection is inaccurate, the efficiency is low, the safety coefficient is low and the like caused by the displacement of the product A to be detected are avoided because the product A to be detected needs to be manually held when the product A to be detected leaks, and the operation is safer, the efficiency is faster and the precision is higher are avoided. The preferred embodiments are given below, but are not limited thereto.

1. Product A to be measured

Preferably, as shown in fig. 1 and 3, the product a to be tested is optionally but not limited to an intake air temperature and pressure sensor, as shown in fig. 3, or other products requiring detection of air leakage. Specifically, the position to be detected for detecting whether the air leakage occurs in the product a to be detected is optionally but not limited to one. 1-3, the product A to be tested has two positions to be tested for detecting whether air leakage exists, and the two positions are connected in series and then connected with the detection assembly, or each position to be tested is allocated with one detection assembly to adapt to the detection assembly. Or any several positions to be detected are connected in series, and a detection assembly is allocated to the positions to be detected. More specifically, the product to be tested a, optionally but not exclusively, includes: the first pipe A1 and the second pipe A2 to be tested are illustrated by the following text and the accompanying drawings, but not limited thereto.

2. Bearing assembly 11

Preferably, as shown in FIG. 2, the carrier assembly 11, optionally but not limited to, includes a base plate 111, a bracket 112 disposed on the base plate 111, and a baffle 113;

a base plate 111 for carrying the bracket 112 and the baffle 113;

a bracket 112 for supporting the product a to be tested; preferably, the number, shape, position, etc. of the brackets 112 can be arbitrarily set according to the shape, size, length, weight, etc. of the product a to be measured. By way of example, in terms of number, it is optional but not limited to one or more, as shown in fig. 2, two brackets on both sides to support the product a to be tested; as a further example, in terms of shape, the upper end of the bracket 112 may optionally, but not exclusively, be provided with an opening for more firmly placing the product a to be tested, and as shown in fig. 2, the first tube A1 and the second tube A2 to be tested of the product to be tested are placed on the opening.

A baffle 113, located at one side of the bracket 112, for fixing the end of the product a to be measured.

More preferably, as shown in fig. 1, the baffle 113 is optionally but not limited to provided with a groove according to the shape of the product a to be tested, so as to facilitate placement of the product to be tested. For example, as shown in fig. 1 and 2, the baffle 113 is provided with two grooves, and is used for inserting the first pipe A1 to be tested and the second pipe A2 to be tested into the two grooves for limiting.

In this embodiment, a plurality of specific preferred embodiments of the carrying assembly 11 are given, firstly, the product a to be tested is placed on the bracket 112, and is blocked and fixed by the baffle 113, and when the bracket 112 and the baffle 113 are opened according to the shape of the product a to be tested, the protruding part of the product a to be tested, such as a pipe to be tested, is optionally but not limited to placed at the opening position to support and fix. Then, when the sliding component 12 is pushed to move toward the bracket 112 manually, electrically, pneumatically, or the like, the docking component 14 clamps and fixes the product a to be tested, for example, as shown in fig. 2, the first tube A1 and the second tube A2 to be tested are pushed to the inside of two grooves of the baffle 113 to limit, and the product a to be tested is connected and fixed through the docking component 14, and two ends of the product a to be tested are clamped and fixed on the bearing component 11, so that displacement of the product a to be tested in the leak detection process is prevented.

3. Sliding assembly 12

Preferably, as shown in fig. 2, the sliding assembly 12 optionally but not limited to includes a sliding rail 121, a sliding member 122 disposed on the sliding rail 121, and a driving member 123 having an output end connected to the sliding member 122;

the sliding piece 122 is slidably arranged on the sliding rail 121 and is used for driving the detection assembly 13 and the docking assembly 14 to be connected with the product A to be detected;

the driving member 123, which is optionally but not limited to a telescopic cylinder, pushes the telescopic rod to stretch and retract, so as to push the sliding member 122 to drive the detecting component 13 and the docking component 14 to approach to the product a to be detected or to be away from the product a to be detected; preferably, as shown in fig. 1, the front end of the telescopic cylinder is also optionally but not limited to provided with a push plate 124 for stably pushing the sliding member 122 to slide.

In this embodiment, a specific preferred embodiment of the sliding assembly 12 is given, the driving member 123 pushes the sliding member 122, and the sliding member 122 slides on the sliding rail 121, so as to drive the docking assembly 14 and the detecting assembly 13 to move and dock towards the product a to be tested, and simultaneously clamp and fix the product a to be tested.

4. Docking assembly 14

Preferably, as shown in FIG. 2, docking assembly 14, optionally but not limited to, includes: an abutting plate 141, and an air duct 142 provided on the abutting plate 141;

an abutting plate 141, disposed on the sliding member 122 and close to one end of the bracket 112, for clamping the product a to be tested; specifically, optionally but not limited to, cooperating with the plate 113 to hold the product a to be tested; more preferably, the inside of the butt plate 141 is optionally but not limited to being provided with a connecting slot for inserting the position to be tested, such as the first tube to be tested A1 and the second tube to be tested A2; more preferably, the sealing ring 143 is optionally but not limited to be arranged in the connecting groove, so as to achieve better sealing effect and improve the air leakage detection precision; preferably, the sealing ring 143 is disposed inside the connecting groove of the butt plate 141, and is used for sealing the first to-be-tested pipe A1 and the second to-be-tested pipe A2 when the detection assembly 13 detects leakage of the to-be-tested product a.

The number of air ducts 142 can be arbitrarily set by the number of positions to be detected of the product to be detected, for example, as shown in fig. 2, the number of air ducts 142 is optionally but not limited to two and corresponds to the first pipe to be detected A1 and the second pipe to be detected A2 respectively, and the two air ducts 142 are connected through an air duct, and the air duct is connected with the detection component 13;

in this embodiment, a specific preferred embodiment of the docking assembly 14 is given, when the sliding member 122 moves toward the product a to be tested, the docking plate 141 clamps the product a to be tested, and preferably inserts the devices to be tested, such as the first tube A1 and the second tube A2 to be tested, into the connecting groove of the docking plate 141, the detecting assembly 13 sends air to the first tube A1 and the second tube A2 to be tested through the air duct 142, and the sealing ring 143 maintains tightness when the product a to be tested is tested.

5. Detection assembly 13

Preferably, as shown in FIG. 2, the detection assembly 13, optionally but not limited to, includes a pressure sensor 131, an inflation valve 132, a deflation valve 133;

a pressure sensor 131, disposed on the slider 122, for detecting a pressure change at the port a of the product to be tested; more preferably, as shown in fig. 2, the pressure sensor 131 is optionally but not limited to being provided with a detection port 1311, an inflation port 1312 and a deflation port 1313, wherein the detection port 1311 is connected with the air guide pipes 142 of the docking assembly, and when two air guide pipes 142 are present as shown in fig. 2, the two air guide pipes are optionally but not limited to being connected in series and then connected with the detection port 1311, and the inflation port 1312 is connected with the inflation valve 132; a purge port 1313 connected to the purge valve 133; specifically, the inflation valve 132 is disposed on the sliding member 122, and is connected to the inflation port 1312 of the pressure sensor 131, for inflating the product a to be tested; the air release valve 133 is disposed on the slider 122 and connected to the air release port 1313 of the pressure sensor 131, for releasing the air filled in the product a to be tested.

In this embodiment, a specific preferred embodiment of the detecting assembly 13 is given, when the position to be detected on the product a to be detected is inserted into the abutting plate 141, the air charging valve 132 will send air into the pressure sensor 131, and the air charging valve 132 will be transported to the inside of the product a to be detected through the detecting port 1311, so that the air pressure in the inside of the product a to be detected will rise, after a certain time, the air charging valve 132 will stop charging and detect whether the port of the position to be detected has air pressure change through the pressure sensor 131, the detecting time is optional but not limited to ten seconds, if the air pressure of the ports of the first pipe A1 to be detected and the second pipe A2 to be detected changes, then it represents that the air leakage phenomenon exists in the product a to be detected, and the preferred pressure sensor 131 will give a prompt; if the air pressure at the ports of the first to-be-tested pipe A1 and the second to-be-tested pipe A2 is unchanged, the air leakage phenomenon of the to-be-tested product a is indicated, the pressure sensor 131 does not give out a prompt, and the air release valve 133 releases the air inside the to-be-tested product a after the detection is completed, so that the air pressure inside the to-be-tested product a is recovered to be normal, and the air leakage detection work of the whole to-be-tested product a is completed.

5. Base seat

Preferably, as shown in fig. 2, the leak detection device of the present utility model further optionally includes, but is not limited to, a base B, the bearing component 11 and the sliding component 12 are disposed on the base B, so as to integrate the above components to form the leak detection device 1; or can be arranged on a table top, a test bench and other planes to form the leak detection device 1 by combining and installing the components.

As shown in fig. 4, based on the inventive concept of the leak detection device of the present utility model, there is also provided a leak detection apparatus, optionally but not limited to comprising a leak detection device 1; a frame 2; a bracket 3 arranged on the frame 2, a pressure supply device 4, a display device 5 and a pressure reducing device 6 which are arranged on the bracket 3; and a control device 7;

the number of the leak detection devices 1 can be set arbitrarily according to the person skilled in the art, and as shown in fig. 4, the leak detection devices 1 are illustrated, and the number of the leak detection devices 1 is optional but not limited to four;

the frame 2 is arranged below the leak detection device 1 and is used for bearing the leak detection device 1;

a bracket 3 for carrying a pressure supply device 4 and a display device 5 and a pressure reducing device 6;

the pressure supply device 4, the display device 5, the pressure reducing device 6 and the control device 7 are connected with the leak detection device 1 and are used for controlling the inflation and deflation and detection processes so as to detect whether the product to be detected leaks air or not and display the detection result. Specifically, the control device 7 controls the pressure supply device 4 to be inflated, the sensor continuously monitors the air pressure, the detection result is displayed by the display device 5, and the pressure reducing device 6 is controlled to be deflated, so that the product A to be detected is recovered to be normal. Specifically, the inflation and deflation detection process, the control steps, the control flow and the control principle displayed are the prior art in the field, and the time, the time length, the monitoring principle of the sensor and the like of specific inflation and deflation can be any mode in the prior art. The leakage detection equipment is created based on the leakage detection device, the combination of the technical effects and the technical characteristics is not repeated here, and the leakage detection equipment is characterized in that the pressure supply device 4, the display device 5, the pressure reducing device 6 and the control device 7 are reasonably arranged on the frame 2 and the support 3 to integrate various functions on the basis of avoiding manual holding to improve detection precision, detection efficiency and detection safety, and is comprehensive in function.

Example:

1. pressure supply device 4

Preferably, as shown in fig. 1-4, the pressure supply device 4 is connected with the detection assembly 13 on the leak detection device 1, and specifically, is connected with the inflation valve 132 of the detection assembly 13, so as to inflate through the inflation valve 132 to inflate into the product a to be detected.

2. Display device 5

Preferably, as shown in fig. 1-4, the display device 5 is optionally but not limited to a display screen, and a controller is disposed inside the display device, and is used for controlling the pressure sensor 131 to detect whether the product a to be tested leaks or not, and the display screen is used for displaying the information of the product a to be tested after the leakage is detected.

3. Pressure reducing device 6

Preferably, as shown in fig. 1-4, the pressure reducing device 6 is connected with the air release valve 133 on the leak detection device 1, and the air release valve 133 can be controlled to release the air filled in the product a to be detected, so as to prevent the excessive air from being transported, and damage caused by excessive air pressure in the product a to be detected.

4. Control device 7

Preferably, as shown in fig. 1-4, the control device 7 is optionally but not limited to provided with four buttons, and the four buttons are respectively used for controlling the four leak detection devices 1 to work, and pressing different buttons can control the corresponding leak detection devices 1 to work.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. A leak detection device, characterized by comprising a bearing assembly (11); a sliding component (12) arranged at one side of the bearing component (11); the detection assembly (13) is arranged on the sliding assembly (12), is close to the butt joint assembly (14) at one side of the bearing assembly (11) and is far away from the bearing assembly (11) and is connected with the butt joint assembly (14);

the bearing assembly (11) is used for bearing a product (A) to be tested;

the sliding component (12) is used for driving the abutting component (14) and the detecting component (13) to slide so as to be close to the bearing component (11), the abutting component (14) is connected with the product (A) to be detected, and whether air leakage occurs or not is detected through the detecting component (13); or is far away from the bearing component (11), so that the abutting component (14) is separated from the product (A) to be tested, and the detection component (13) stops working.

2. The leak detection apparatus according to claim 1, characterized in that the carrier assembly (11) comprises a base plate (111), a bracket (112) provided on the base plate (111), and a baffle (113);

a bottom plate (111) for carrying the bracket (112) and the baffle (113);

a bracket (112) for supporting a product (A) to be tested;

and the baffle plate (113) is positioned on one side of the bracket (112) and is used for fixing the tail end of the product (A) to be tested.

3. The leakage detection device according to claim 2, characterized in that the bracket (112) or/and the baffle (113) is provided with a groove for accommodating the position to be detected of the product (a) to be detected.

4. The leak detection apparatus according to claim 1, wherein the sliding assembly (12) includes a slide rail (121), a slider (122) provided on the slide rail (121), and a driving member (123) having an output end connected to the slider (122);

the sliding piece (122) is slidably arranged on the sliding rail (121) and is used for driving the detection assembly (13) and the butt joint assembly (14) to be close to or far away from the product (A) to be detected under the action of the driving piece (123).

5. The leakage detecting device according to claim 4, wherein a push plate is provided at a front end of the driving member (123) for stably pushing the sliding member (122) to slide.

6. The leak detection apparatus as set forth in claim 1, wherein the docking assembly (14) includes: an abutting plate (141) and an air duct (142) provided on the abutting plate (141);

an abutting plate (141) which is arranged on the sliding piece (122) and is close to one end of the bracket (112) and is used for clamping a product (A) to be tested;

one end of the air duct (142) is connected with the position to be detected of the product (A) to be detected, and the other end of the air duct is connected with the detection assembly (13).

7. The leakage detection apparatus according to claim 6, wherein the plurality of positions to be detected of the product (a) to be detected are connected in series and then connected to the gas duct (142).

8. The leak detection apparatus as defined in claim 1, wherein the detection assembly (13) comprises a pressure sensor (131), an inflation valve (132), and a deflation valve (133);

the pressure sensor (131) is arranged on the sliding piece (122) and is used for detecting pressure change at the port of the product (A) to be detected;

the inflation valve (132) is arranged on the sliding piece (122) and connected with the pressure sensor (131) for inflating the product (A) to be tested;

and the air release valve (133) is arranged on the sliding piece (122) and is used for releasing air filled in the product (A) to be tested.

9. The leakage detection apparatus according to any one of claims 1-8, further comprising a base (B), wherein the carrier assembly (11) and the sliding assembly (12) are integrally arranged on the base (B).

10. The leak detection device is characterized by comprising a leak detection device (1); a frame (2); a bracket (3) arranged on the frame (2); the pressure supply device (4), the display device (5) and the pressure reducing device (6) are arranged on the bracket (3); and control device (7)

A leak detection device (1) being a leak detection device (1) according to any one of claims 1-7;

the frame (2) is arranged below the leak detection device (1) and is used for bearing the leak detection device (1);

the bracket (3) is arranged above the leak detection device (1) and is used for bearing the pressure supply device (4), the display device (5) and the pressure reducing device (6);

the pressure supply device (4), the display device (5), the pressure reducing device (6) and the control device (7) are connected with the leak detection device (1) and used for controlling the inflation and deflation and detection processes so as to detect whether the product to be detected leaks gas or not and display the detection result.