Blockage detection tool for improved leak detector

Abstract

The utility model relates to the technical field of leak detector components, in particular to an improved leak detector blocking detection tool, which comprises a lower air seat, an upper air seat arranged on the lower air seat, and an air pipe communicated with the middle part of the lower end of the lower air seat and the middle part of the upper end of the upper air seat, the left end and the right end of the upper air seat are fixedly connected with side inserting plates downwards attached to the side wall of the lower air seat, and the left end and the right end of the lower air seat are located on the front sides and the rear sides of the side inserting plates and fixedly connected with limiting check blocks. According to the utility model, the original blocking detection tool is scientifically and reasonably improved, the upper air seat is provided with the side insertion plate, the upper insertion groove and the trapezoidal locking groove, and the lower air seat is provided with the sliding rail, the sliding block, the upper insertion block, the trapezoidal locking block, the U-shaped sliding rod, the limiting check ring and the spiral extrusion spring; according to the structure, automatic locking operation after the upper air seat and the lower air seat are covered can be achieved, the workload and difficulty of actual leakage detection operation of operators are effectively reduced, and therefore the convenience and efficiency of actual blockage detection operation are improved.

Description

Technical Field

[0001] This utility model relates to the technical field of leak detector components, and in particular to an improved leak detector plugging tool. Background Technology

[0002] The airtightness leak detector is based on gas pressure difference measurement. It is highly accurate, efficient, and intelligent, and can be used for sealing tests in multiple industries to ensure product quality and safety. The test steps include preparing the test piece, setting parameters, starting the test, and analyzing the results.

[0003] like Figure 4 As shown, this is the plugging detection fixture used in the previous generation of leak detectors. Its main function is to seal the workpiece to be tested between the lower and upper air seats. Then, the lower and upper air seats are inflated and deflated through air pipes. The pressure difference between the upper and lower air seats can be used to detect whether there is a blockage in the internal pipeline of the workpiece. However, this plugging detection fixture has the following shortcomings in actual use: After the upper air seat is covered on the lower air seat, the operator still needs to hold the knob and screw the inner end of the fastening bolt inward into the reserved limiting hole of the lower air seat to lock the lower and upper air seats after they are covered, so as to ensure the airtightness and stability of the entire plugging detection process. The entire plugging detection operation is labor-intensive and difficult, which reduces the convenience and efficiency of the plugging detection fixture in actual use.

[0004] In view of this, it is particularly important to design and manufacture a leak detection tool that can be easily locked after the lower and upper air seats are closed, thereby improving the convenience and efficiency of the actual use of the leak detection tool. Utility Model Content

[0005] The purpose of this utility model is to solve the problem that the previous generation of leak detectors used a plugging tool, which required the operator to participate in the closing and fixing of the plugging tool, resulting in poor convenience and low efficiency in plugging operation. Therefore, an improved plugging tool for leak detectors is proposed.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An improved leak detector fixture includes a lower air seat, an upper air seat mounted on the lower air seat, and an air pipe connecting the lower middle part of the lower air seat and the upper middle part of the upper air seat. The left and right ends of the upper air seat are fixedly connected to side plates that fit downward against the side wall of the lower air seat. The left and right ends of the lower air seat are fixedly connected to limit blocks on the front and rear sides of the side plates. A spring-loaded locking mechanism is provided between the lower air seat and the side plates for automatic locking operation after the upper air seat is closed on the lower air seat.

[0008] As a further description of the above technical solution:

[0009] The spring lock mechanism includes slide rails symmetrically fixed at the left and right ends of the lower gas seat and located below the side insert plate, a slider movably installed on the upper end of the slide rail, multiple upper insert blocks equidistantly fixed at the upper end of the slider and extending upward through the side insert plate, a trapezoidal lock block integrally fixed at the rear end of the multiple upper insert blocks, an upper slot opened at the lower end of the side insert plate for inserting the upper insert block, and a trapezoidal lock groove opened on the side insert plate and corresponding to the trapezoidal lock block.

[0010] As a further description of the above technical solution:

[0011] A U-shaped slide rod is installed between the front ends of the two sliders on the left and right sides. A helical compression spring is sleeved on the two vertical ends of the U-shaped slide rod between the front end of the lower air seat and the front end of the slider.

[0012] As a further description of the above technical solution:

[0013] Both vertical ends of the U-shaped slide bar are equipped with limiting rings to maintain the initial position of the slider, so that the upper insertion block is stably oriented towards the upper slot and the trapezoidal locking groove.

[0014] As a further description of the above technical solution:

[0015] The front end of the lower air seat is symmetrically and fixedly connected with two limiting blocks that fit against the lower end of the U-shaped slide rod and restrict the U-shaped slide rod from sliding too far forward.

[0016] As a further description of the above technical solution:

[0017] The left and right ends of the lower air seat and the left and right ends of the upper air seat are all integrally fixedly connected with mounting ribs, and mounting holes are provided on the mounting ribs.

[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0019] In this invention, the original leak detection fixture has been scientifically and rationally improved. A side insert plate, an upper slot, and a trapezoidal locking groove are installed on the upper air seat, while a slide rail, a slider, an upper insert block, a trapezoidal locking block, a U-shaped slide rod, a limiting ring, and a spiral compression spring are installed on the lower air seat. During the downward movement of the upper air seat, under the action of contact compression force, the slider can press the spiral compression spring forward along the slide rail. At this time, the upper insert block can be inserted upward into the upper slot of the side insert plate. After the upper and lower air seats are completely closed, under the action of the spiral compression spring, the trapezoidal locking block on the upper insert block can spring backward into the trapezoidal locking groove, stably locking the upper air seat onto the lower air seat. This structure enables automated locking operation after the upper and lower air seats are closed, effectively reducing the workload and difficulty of actual leak detection operations for operators, thereby improving the convenience and efficiency of actual leak detection operations. Attached Figure Description

[0020] Figure 1 This is a simplified structural diagram of an improved leak detector tooling proposed in this utility model.

[0021] Figure 2 This is a three-dimensional disassembly diagram of the present invention;

[0022] Figure 3 This is a three-dimensional right-side view of the present invention;

[0023] Figure 4 This is a schematic diagram of the plugging and sealing tooling used in the previous generation of leak detectors in the existing technology.

[0024] Legend:

[0025] 1. Lower air seat; 101. Slide rail; 102. Limiting block; 103. Limiting stop; 2. Upper air seat; 201. Side insert plate; 202. Upper slot; 203. Trapezoidal locking groove; 3. Air pipe; 4. Mounting rib plate; 401. Mounting hole; 5. Slider; 501. Upper insert block; 502. Trapezoidal locking block; 6. U-shaped slide rod; 601. Limiting stop ring; 7. Helical compression spring. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-4 This utility model provides a technical solution: an improved leak detector tooling for plugging, including a lower air seat 1, an upper air seat 2 disposed on the lower air seat 1, and an air pipe 3 connecting the lower middle part of the lower air seat 1 and the upper middle part of the upper air seat 2. The left and right ends of the upper air seat 2 are fixedly connected with side insert plates 201 that fit downward against the side wall of the lower air seat 1. The left and right ends of the lower air seat 1 are fixedly connected with limit blocks 103 on the front and rear sides of the side insert plates 201. A spring lock mechanism is provided between the lower air seat 1 and the side insert plates 201 for automatic locking operation after the upper air seat 2 is covered on the lower air seat 1.

[0028] Specifically, such as Figure 1-3As shown, the spring-loaded locking mechanism includes a slide rail 101 symmetrically fixed at both ends of the lower gas seat 1 and located below the side insert plate 201; a slider 5 movably mounted on the upper end of the slide rail 101; multiple upper insert blocks 501 equidistantly fixed to the upper end of the slider 5 and extending upward through the side insert plate 201; a trapezoidal locking block 502 integrally fixed to the rear end of the multiple upper insert blocks 501; an upper slot 202 opened at the lower end of the side insert plate 201 for inserting the upper insert blocks 501; and an opening... The trapezoidal locking groove 203 on the side insert plate 201, which corresponds to the trapezoidal locking block 502, restricts the degree of freedom of the upper air seat 2 in the X and Y directions on the lower air seat 1 when the side insert plate 201 is inserted downward between the limiting blocks 103 of the lower air seat 1. When the trapezoidal locking block 502 on the upper insert plate 501 slides into the trapezoidal locking groove 203 on the side insert plate 201, it further restricts the degree of freedom of the upper air seat 2 in the Z direction on the lower air seat 1.

[0029] Specifically, such as Figure 1-3 As shown, a U-shaped slide bar 6 is installed between the front ends of the two sliders 5 on the left and right sides, which facilitates the operator to manually slide and adjust the two sliders 5 synchronously. A spiral compression spring 7 is sleeved on the two vertical ends of the U-shaped slide bar 6 between the front end of the lower air seat 1 and the front end of the slider 5. Under normal conditions, the spiral compression spring 7 can make the slider 5 generate a backward elastic compression force, which makes it easy for the trapezoidal locking block 502 on the upper insert 501 to snap into the trapezoidal locking groove 203 of the side insert plate 201.

[0030] Both vertical ends of the U-shaped slide bar 6 are equipped with limiting rings 601 to maintain the initial position of the slider 5, so that the upper insert 501 is stably facing the upper slot 202 and the trapezoidal locking groove 203. These rings limit the initial position of the slider 5 on the slide rail 101, ensuring that the upper insert 501 and the trapezoidal locking block 502 can normally enter the upper slot 202 and the trapezoidal locking groove 203 on the side insert plate 201, thus improving the stability of the locking process when the upper air seat 2 covers the lower air seat 1.

[0031] Two limiting blocks 102 are symmetrically fixedly connected to the front end of the lower air seat 1. These blocks are in contact with the lower end of the U-shaped slide rod 6 and restrict the U-shaped slide rod 6 from sliding too far forward. On the one hand, the lower end of the horizontal end of the U-shaped slide rod 6 can be supported by a bracket to ensure that the U-shaped slide rod 6 can slide horizontally stably. On the other hand, the lead of the U-shaped slide rod 6 can be limited to prevent the upper insertion block 501 from being misaligned with the upper slot 202 due to the sliding adjustment slider 5 of the U-shaped slide rod 6.

[0032] Specifically, such as Figure 1-3 As shown, the left and right ends of the lower air seat 1 and the left and right ends of the upper air seat 2 are integrally fixedly connected with mounting ribs 4. Mounting ribs 4 are provided with mounting holes 401. The mounting ribs 4 and mounting holes 401 are designed to facilitate the lower air seat 1 and the upper air seat 2 to be fixedly installed on the detection station of the leak detector by fasteners.

[0033] Working principle: In use, the lower air seat 1 and upper air seat 2 are fixed to the detection station of the leak detector using fasteners and mounting ribs 4. Then, the air circuit of the leak detector is connected to the air pipes 3 on the lower air seat 1 and upper air seat 2 respectively, completing the installation of the leak detection fixture. In actual use, the workpiece to be tested can be placed into the lower air seat 1 beforehand. Then, by operating the equipment or manually adjusting the upper air seat 2 to move towards the lower air seat 1, the lower end of the side insert plate 201 can contact and press against the trapezoidal locking block 502 on the upper insert block 501. At this time, the slider 5 is subjected to force and can move forward on the slide rail 101, pressing the spiral compression spring 7 between the lower air seat 1 and the slider 5. At this time, the upper insert block 501 can slide into the upper slot of the side insert plate 201 beforehand. Inside 202, when the upper air seat 2 is completely covered by the lower air seat 1, the trapezoidal locking block 502 on the upper insert 501 is at the same horizontal centerline as the trapezoidal locking block 502 on the upper insert 501. At this time, under the action of the spiral compression spring 7, the trapezoidal locking block 502 can spring back and lock into the trapezoidal locking groove 203 on the side insert plate 201, thus completing the locking operation after the lower air seat 1 and the upper air seat 2 are covered. Then the subsequent plugging operation can be carried out. After the plugging operation is completed, the operator slides the U-shaped slide bar 6 forward in advance. At this time, the trapezoidal locking block 502 on the slider 5 can be driven to slide away from the trapezoidal locking groove 203 in the upper slot 202, thereby releasing the locking state between the lower air seat 1 and the upper air seat 2, and the opening operation of the upper air seat 2 and the lower air seat 1 can be carried out.

[0034] 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. A modified leak detector fixture, comprising a lower air seat (1), an upper air seat (2) disposed on the lower air seat (1), and an air pipe (3) connecting the lower middle part of the lower air seat (1) and the upper middle part of the upper air seat (2), characterized in that, The upper air seat (2) is fixedly connected to the left and right ends of the side plate (201) which is attached to the side wall of the lower air seat (1) downwards. The lower air seat (1) is fixedly connected to the left and right ends of the side plate (201) on the front and rear sides of the side plate (201) with limit blocks (103). A spring lock mechanism is provided between the lower air seat (1) and the side plate (201) for automatic locking operation after the upper air seat (2) is covered on the lower air seat (1).

2. The improved leak detector fixture according to claim 1, characterized in that, The spring lock mechanism includes a slide rail (101) symmetrically fixed at the left and right ends of the lower air seat (1) and located below the side insert plate (201), a slider (5) movably installed on the upper end of the slide rail (101), multiple upper insert blocks (501) equidistantly fixed at the upper end of the slider (5) and extending upward through the side insert plate (201), a trapezoidal locking block (502) integrally fixed at the rear end of the multiple upper insert blocks (501), an upper slot (202) opened at the lower end of the side insert plate (201) for inserting the upper insert block (501), and a trapezoidal locking groove (203) opened on the side insert plate (201) and corresponding to the trapezoidal locking block (502).

3. The improved leak detector tooling for leak detection according to claim 2, characterized in that, A U-shaped slide bar (6) is installed between the front ends of the two sliders (5) on the left and right sides. A spiral compression spring (7) is sleeved on the two vertical ends of the U-shaped slide bar (6) between the front end of the lower air seat (1) and the front end of the slider (5).

4. The improved leak detector tooling for plugging as described in claim 3, characterized in that, The two vertical ends of the U-shaped slide bar (6) are equipped with limiting rings (601) to maintain the initial position of the slider (5) so that the upper insert (501) is stably facing the upper slot (202) and the trapezoidal locking groove (203).

5. The improved leak detector fixture according to claim 2, characterized in that, The front end of the lower air seat (1) is symmetrically fixedly connected to two limiting blocks (102) that fit against the lower end of the U-shaped slide rod (6) and restrict the U-shaped slide rod (6) from sliding too far forward.

6. The improved leak detector tooling according to claim 1, characterized in that, The left and right ends of the lower air seat (1) and the left and right ends of the upper air seat (2) are all integrally fixedly connected with mounting ribs (4), and mounting holes (401) are provided on the mounting ribs (4).

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