Online vacuum attenuation leak detection machine

Abstract

The utility model belongs to the technical field of leak hunting machines, in particular to an online vacuum attenuation leak hunting machine, which comprises a leak hunting machine body, a conveyor belt is mounted on the surface of the leak hunting machine body, a guide rail is mounted on the upper surface of the conveyor belt, and the guide rail is bent and is matched with the working end of the leak hunting machine body. A detection mechanism is installed on the inner side wall of the feeding end of the guide rail and comprises a detection block. According to the online vacuum attenuation leak hunting machine, the detection mechanism is installed at the feeding end of the guide rail, materials in the guide rail extrude a detection block in the detection mechanism during feeding, then an extrusion plate is driven through the inclined face of the triggering end of the detection block, the extrusion plate triggers a pressure sensor, and then the leakage of the vacuum attenuation leak hunting machine is detected according to the triggering condition of the pressure sensor. The movement of the material in the guide rail is monitored, and the reverse return of the material in the guide rail is hindered by utilizing the latch-shaped extension of the detection block, so that the online detection of the feeding condition of the leak detector is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of leak detection technology, and in particular to an online vacuum attenuation leak detector. Background Technology

[0002] A vacuum attenuation leak detector is a device used to detect whether an object has a minute leak. When monitoring a large number of objects on an assembly line, the placement of objects on the conveyor belt is mostly done manually, which makes it easy to remove some obviously defective parts that are visible to the naked eye. However, this removal will create gaps between the object arrays, making it difficult to count the actual number of parts fed into the vacuum attenuation leak detector, which in turn affects subsequent piece counting and makes it inconvenient to use. Utility Model Content

[0003] To address the technical problem that existing vacuum decay leak detectors are not convenient for accurately detecting the actual number of incoming parts, this utility model proposes an online vacuum decay leak detector.

[0004] This utility model proposes an online vacuum attenuation leak detector, including a leak detector body. A conveyor belt is installed on the surface of the leak detector body, and a guide rail is installed on the upper surface of the conveyor belt. The guide rail is bent and adapted to the working end of the leak detector body. A detection mechanism is installed on the inner side wall of the feed end of the guide rail. The detection mechanism includes a detection block made of metal. The detection block includes a trigger end and a retraction end. An installation groove is opened on the inner side wall of the guide rail, and the installation groove is located at the bend of the guide rail.

[0005] Preferably, the inner top wall of the mounting groove is rotatably connected to a rotating shaft via a bearing, and the lower end of the rotating shaft is fixedly inserted into the upper surface of one end of the detection block.

[0006] The above technical solution utilizes a rotating shaft to allow the detection block to be movably installed, thus facilitating its deflection.

[0007] Preferably, the inner wall of the mounting groove is provided with a trigger groove, and a pressure sensor is fixedly connected to the inner wall of one end of the trigger groove.

[0008] The above technical solution connects the pressure sensor to the control unit of the leak detection machine, which facilitates monitoring the triggering of the pressure sensor. The pressure sensor is also installed inside the trigger slot to avoid accidental damage.

[0009] Preferably, a pressing plate is slidably connected to the inner wall of the trigger groove, and a magnetic rod is fixedly connected to one end of the pressing plate, with the magnetic rod located outside the trigger groove.

[0010] The above technical solution utilizes the attraction between the magnetic rod and the detection block to facilitate maintaining the connection between them. To prevent the pressure sensor from being damaged by the extrusion plate, a rubber pad can be installed on the other end of the extrusion plate.

[0011] Preferably, limit blocks are fixedly connected to both sides of the extrusion plate, and the outer surface of the limit blocks is slidably connected to the inner wall of the trigger groove.

[0012] The above technical solution utilizes the cooperation between the limiting block and the inner wall of the trigger groove to facilitate preventing the extrusion plate from completely detaching from the trigger groove.

[0013] Preferably, a retaining ring is installed on the upper surface of the rotating shaft.

[0014] The above technical solution uses a snap ring to control the deflection of the rotating shaft, thereby facilitating the outward deflection of the trigger end of the detection block out of the mounting groove.

[0015] The beneficial effects of this utility model are as follows:

[0016] By installing a detection mechanism at the feed end of the guide rail, the material in the guide rail squeezes the detection block in the detection mechanism during feeding. The inclined surface of the trigger end of the detection block drives the extrusion plate, which in turn triggers the pressure sensor. The activity of the material in the guide rail is monitored by the triggering status of the pressure sensor. The toothed extension of the detection block also helps to prevent the reverse retreat of the material in the guide rail, thus facilitating online detection of the feed status of the leak detector. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of an online vacuum attenuation leak detector proposed in this utility model;

[0018] Figure 2 A perspective view of the guide rail structure of an online vacuum attenuation leak detector proposed in this utility model;

[0019] Figure 3 This is a cross-sectional view of the guide rail structure of an online vacuum attenuation leak detector proposed in this utility model;

[0020] Figure 4 This is a three-dimensional view of the detection block structure of an online vacuum attenuation leak detector proposed in this utility model.

[0021] In the diagram: 1. Leak tester body; 2. Conveyor belt; 3. Guide rail; 31. Mounting groove; 311. Trigger groove; 4. Detection block; 401. Trigger end; 402. Contraction end; 41. Rotating shaft; 42. Pressure sensor; 43. Extrusion plate; 44. Magnetic rod; 45. Limiting block; 46. Snap ring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Reference Figures 1-4 An online vacuum attenuation leak detector includes a leak detector body 1, a conveyor belt 2 mounted on the surface of the leak detector body 1, a guide rail 3 mounted on the upper surface of the conveyor belt 2, the guide rail 3 being bent and adapted to the working end of the leak detector body 1, a detection mechanism mounted on the inner side wall of the feed end of the guide rail 3, the detection mechanism including a detection block 4, the detection block 4 being made of metal, the detection block 4 including a trigger end 401 and a retraction end 402, and an installation groove 31 being opened on the inner side wall of the guide rail 3, the installation groove 31 being located at the bend of the guide rail 3.

[0024] To trigger the pressure sensor 42, a trigger groove 311 is provided on the inner wall of the mounting groove 31. The pressure sensor 42 is fixedly connected to the inner wall of one end of the trigger groove 311. The pressure sensor 42 is connected to the control unit of the leak detection machine body 1, facilitating monitoring of its triggering. Installing the pressure sensor 42 inside the trigger groove 311 helps prevent accidental damage. A pressing plate 43 is slidably connected to the inner wall of the trigger groove 311. A magnetic rod 44 is fixedly connected to one end of the pressing plate 43. 44 is located outside the trigger groove 311. The magnetic rod 44 attracts the detection block 4, thus facilitating the connection between the magnetic rod 44 and the detection block 4. In order to prevent the pressure sensor 42 from being damaged by the extrusion plate 43, a rubber pad can also be installed at the other end of the extrusion plate 43. Limiting blocks 45 are fixedly connected to both sides of the extrusion plate 43. The outer surface of the limiting block 45 is slidably connected to the inner wall of the trigger groove 311. The limiting block 45 cooperates with the inner wall of the trigger groove 311, thus facilitating the prevention of the extrusion plate 43 from completely detaching from the trigger groove 311.

[0025] By installing a detection mechanism at the feed end of the guide rail 3, the material in the guide rail 3 squeezes the detection block 4 in the detection mechanism during feeding. The inclined surface of the trigger end 401 of the detection block 4 then drives the extrusion plate 43, which triggers the pressure sensor 42. The activity of the material in the guide rail 3 is monitored by the triggering status of the pressure sensor 42. The toothed extension of the detection block 4 further hinders the reverse retreat of the material in the guide rail 3, thus facilitating online detection of the feed status of the leak detector.

[0026] To allow the detection block 4 to be movably installed, a rotating shaft 41 is rotatably connected to the inner top wall of the mounting groove 31 via a bearing. The lower end of the rotating shaft 41 is fixedly inserted into the upper surface of one end of the detection block 4. The detection block 4 is movably installed via the rotating shaft 41, which facilitates the deflection of the detection block 4. A retaining spring 46 is installed on the upper surface of the rotating shaft 41. The retaining spring 46 is used to control the deflection of the rotating shaft 41, which facilitates keeping the trigger end 401 of the detection block 4 deflected outward and extended out of the mounting groove 31.

[0027] Working principle: When in use, the snap ring 46 pushes the rotating shaft 41 to deflect at a certain angle. The rotating shaft 41 drives the detection block 4 to deflect. The trigger end 401 of the detection block 4 extends into the space between two adjacent guide rails 3. When the material is conveyed through the guide rails 3, the outer surface of the material presses the outer surface of the trigger end 401. The detection block 4 and the rotating shaft 41 deflect. The inner inclined surface of the trigger end 401 presses the magnetic rod 44. Under the combined action of the inner wall of the trigger groove 311 and the inner inclined surface of the trigger end 401, the shrinking end 402 of the detection block 4 slides towards the trigger end 401 and drives the extrusion plate 43 to extend into the trigger groove 311. The extrusion plate 43 triggers the pressure sensor 42. The pressure sensor 42 transmits the feeding signal to the leak detection machine body 1.

[0028] After the material slides across the surface of the detection block 4, the outer surface of the trigger end 401 loses its compression, the snap ring 46 resets and drives the rotating shaft 41 to deflect and reset the detection block 4. At the same time, the surface of the magnetic rod 44 loses the compression of the trigger end 401, and under the action of magnetic force, the magnetic rod 44 and the compression plate 43 are pulled, and the magnetic rod 44 is inserted into the contraction end 402.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An online vacuum attenuation leak detector, comprising a leak detector body (1), wherein a conveyor belt (2) is mounted on the surface of the leak detector body (1), characterized in that: The upper surface of the conveyor belt (2) is equipped with a guide rail (3). The guide rail (3) is bent and adapted to the working end of the leak tester body (1). A detection mechanism is installed on the inner side wall of the feed end of the guide rail (3). The detection mechanism includes a detection block (4). The detection block (4) is made of metal. The detection block (4) includes a trigger end (401) and a retraction end (402). An installation groove (31) is opened on the inner side wall of the guide rail (3). The installation groove (31) is located at the bend of the guide rail (3).

2. The online vacuum attenuation leak detector according to claim 1, characterized in that: The inner top wall of the mounting groove (31) is rotatably connected to a rotating shaft (41) via a bearing, and the lower end of the rotating shaft (41) is fixedly inserted into the upper surface of one end of the detection block (4).

3. The online vacuum attenuation leak detector according to claim 2, characterized in that: The inner wall of the mounting groove (31) is provided with a trigger groove (311), and a pressure sensor (42) is fixedly connected to the inner wall of one end of the trigger groove (311).

4. The online vacuum attenuation leak detector according to claim 3, characterized in that: The inner wall of the trigger groove (311) is slidably connected to a pressing plate (43), and one end of the pressing plate (43) is fixedly connected to a magnetic rod (44), which is located outside the trigger groove (311).

5. An online vacuum attenuation leak detector according to claim 4, characterized in that: Limiting blocks (45) are fixedly connected to both sides of the extrusion plate (43), and the outer surface of the limiting block (45) is slidably connected to the inner wall of the trigger groove (311).

6. An online vacuum attenuation leak detector according to claim 5, characterized in that: A retaining ring (46) is mounted on the upper surface of the rotating shaft (41).

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