Air tap sealing mechanism for air pressure testing machine

Abstract

The utility model relates to the technical field of air pressure testing machines, in particular to an air tap sealing mechanism for an air pressure testing machine, which mainly comprises a rack, a detection assembly and a positioning assembly fixedly mounted on the top surface of the rack, a product arranged on the inner wall of the positioning assembly, an air tap arranged on the bottom surface of the product, and a sealing mechanism arranged above the rack, and the fixing mechanism is arranged below the positioning assembly. When an air tap is connected with a sealing cylinder, a sealing gasket preliminarily seals air holes in the two sides of the air tap, a connecting frame is rotated, when the connecting frame is rotated, the relative positions of an abutting block and a connecting groove are rotated, the connecting groove is away from the abutting block, the inner wall of the connecting frame makes contact with the side face of the abutting block, the abutting block is pushed to move by a short distance, and the abutting block extrudes the sealing gasket; the sealing effect of the sealing gasket on the air holes in the two sides of the air tap is enhanced, when the air pressure in the air tap is increased, leakage is not prone to occurring at the air tap, and the sealing quality is improved.

Description

Technical Field

[0001] This utility model relates to the field of air pressure testing machine technology, specifically to an air nozzle sealing mechanism for an air pressure testing machine. Background Technology

[0002] Air pressure testing machines are primarily used to measure the pressure of various gases, providing crucial data to ensure product quality. They assess the performance of an object or system under test by applying a specific gas pressure and monitoring pressure changes. During testing, key parameters such as pressure values ​​and pressure change rates can be recorded and analyzed to determine whether the tested object or system meets design requirements or quality standards.

[0003] When air pressure testing machines perform rigorous and precise testing on various products, the air nozzle of the product needs to be properly and tightly sealed. In most cases, a relatively simple sealing ring is used to achieve the sealing connection between the air nozzle and the sealing cylinder. As the internal gas pressure of the product being tested continues to increase, the pressure on the sealing ring will also increase accordingly. The fit between the sealing ring and the air nozzle will gradually decrease, thereby reducing the sealing quality of the air nozzle. During air pressure testing, gas leakage is likely to occur, reducing the accuracy of the test. Utility Model Content

[0004] The purpose of this invention is to provide a nozzle sealing mechanism for an air pressure testing machine to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An air nozzle sealing mechanism for an air pressure testing machine includes: a frame, a detection component and a positioning component fixedly mounted on the top surface of the frame, a product disposed on the inner wall of the positioning component, and an air nozzle disposed on the bottom surface of the product; and further includes:

[0007] A sealing mechanism is located above the frame. The sealing mechanism includes a sealing cylinder installed on the top surface of the frame. A sealing gasket is installed inside the sealing cylinder. A connecting frame is rotatably connected to the top surface of the outer side of the sealing cylinder. The sealing mechanism is used to seal the air nozzle.

[0008] The fixing mechanism is located below the positioning component. The fixing mechanism includes a fixing ring that is fixedly installed on the outer wall of the sealing cylinder, and a fixing post is provided below the fixing ring. The fixing mechanism is used to fix the connecting frame.

[0009] Preferably, two mounting holes are provided through the side of the sealing cylinder, and the inner wall of the connecting frame is slidably connected to the outer wall of the sealing cylinder.

[0010] Preferably, sealing gaskets are fixedly installed on the inner walls of the two mounting holes, and the inner walls of the sealing gaskets abut against the outer walls of the air nozzles.

[0011] Preferably, two abutments are fixedly installed on the sides of the two sealing gaskets that are far apart from each other, and the other side of the two abutments is set as an inclined surface, with one side of the two abutments slightly extending beyond the outer wall of the sealing cylinder.

[0012] Preferably, the inner wall of the connecting frame has two connecting grooves, and the inner walls of the two connecting grooves and the inner wall of the connecting frame are slidably connected to the sides of the two abutment blocks.

[0013] Preferably, two fixing strips are fixedly installed on the bottom surface of the fixing ring, and the lower side of the two fixing strips are fixedly connected to the two ends of the two fixing posts respectively. Two grooves are opened through the outer wall of the connecting frame, and the inner walls of the two grooves are slidably connected to the outer walls of the two fixing posts respectively.

[0014] Preferably, the connecting frame has two cavities inside, and movable plates are slidably installed on the inner walls of the two cavities. Springs are fixedly installed on the bottom surfaces of the two movable plates, and the lower ends of the two springs are fixedly connected to the lower inner walls of the two cavities.

[0015] Preferably, wedge-shaped blocks are fixedly installed on the top surfaces of the two movable plates respectively. The upper ends of the two wedge-shaped blocks slide through the upper ends of the two cavities and extend into the inside of the groove. The two wedge-shaped blocks are respectively engaged with two fixed columns. A sliding groove is opened through one side of each of the two cavities. Adjusting blocks are fixedly installed on the sides of the two movable plates respectively. The sides of the two adjusting blocks are slidably connected to the inner walls of the two sliding grooves respectively.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This invention achieves initial sealing of the air holes on both sides of the air nozzle by the sealing gasket when the air nozzle is connected to the sealing cylinder. When the connecting frame is rotated, the relative position of the abutment and the connecting groove also rotates, moving the connecting groove away from the abutment. The inner wall of the connecting frame contacts the side of the abutment and pushes the abutment a short distance. The abutment squeezes the sealing gasket, enhancing the sealing effect of the sealing gasket on the air holes on both sides of the air nozzle. Furthermore, when the air pressure inside the air nozzle increases, leakage is less likely to occur at the air nozzle, thus improving the sealing quality.

[0018] When the connecting frame is rotated, the wedge block rotates. When the wedge block contacts the fixed post, the wedge block causes the moving plate to move downward under the pressure of the fixed post. The moving plate then presses against the spring. When the wedge block moves to the other side of the fixed post, the spring pushes the moving plate and the wedge block upward, and the wedge block engages with the fixed post, thus fixing the connecting frame. This prevents the connecting frame from rotating and ensures that the sealing gasket pushes against the air nozzle to seal, preventing loosening and further improving the sealing effect. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is an exploded three-dimensional view of the sealing cylinder of this utility model;

[0021] Figure 3 This is an exploded three-dimensional view of the connecting frame of this utility model.

[0022] Figure 4 This is a three-dimensional cross-sectional view of the sealing cylinder of this utility model;

[0023] Figure 5 This is a three-dimensional structural diagram of the connecting frame of this utility model;

[0024] Figure 6 For the present utility model Figure 4 Enlarged view of point A in the middle.

[0025] In the picture:

[0026] 1. Frame; 101. Detection assembly; 102. Positioning assembly;

[0027] 2. Sealing mechanism; 201. Sealing cylinder; 202. Mounting hole; 203. Sealing gasket; 204. Abutment; 205. Connecting frame; 206. Connecting groove;

[0028] 3. Fixing mechanism; 301. Fixing ring; 302. Fixing strip; 303. Fixing column; 304. Groove; 305. Cavity; 306. Moving plate; 307. Wedge block; 308. Spring; 309. Slide groove; 310. Adjusting block;

[0029] 4. Product; 401. Air nozzle. Detailed Implementation

[0030] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0031] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0032] like Figures 1-6As shown, this application provides a nozzle sealing mechanism for an air pressure testing machine, including: a frame 1, a detection component 101 and a positioning component 102 fixedly mounted on the top surface of the frame 1, a product 4 disposed on the inner wall of the positioning component 102, and a nozzle 401 disposed on the bottom surface of the product 4, and further including:

[0033] A sealing mechanism 2 is located above the frame 1. The sealing mechanism 2 includes a sealing cylinder 201 installed on the top surface of the frame 1. A sealing gasket 203 is provided inside the sealing cylinder 201. A connecting frame 205 is rotatably connected to the top surface of the outer side of the sealing cylinder 201. The sealing mechanism 2 is used to seal the air nozzle 401.

[0034] Specifically, such as Figures 1-5 As shown, two mounting holes 202 are provided through the side of the sealing cylinder 201, and the inner wall of the connecting frame 205 is slidably connected to the outer wall of the sealing cylinder 201.

[0035] In this embodiment, the air nozzle 401 is sealed by setting a sealing cylinder 201.

[0036] Specifically, such as Figures 1-5 As shown, sealing gaskets 203 are fixedly installed on the inner walls of the two mounting holes 202 respectively, and the inner wall of the sealing gaskets 203 abuts against the outer wall of the air nozzle 401.

[0037] In this embodiment: the sealing gasket 203 abuts against the outer wall of the air nozzle 401 to seal the two air holes on the air nozzle 401.

[0038] Specifically, such as Figures 1-5 As shown, two sealing gaskets 203 are fixedly installed with abutments 204 on their opposite sides. The other side of the two abutments 204 is set as an inclined surface, and one side of the two abutments 204 extends slightly beyond the outer wall of the sealing cylinder 201.

[0039] In this embodiment, the side of the abutment 204 that connects with the sealing gasket 203 is arc-shaped, so that the abutment 204 can push the sealing gasket 203 to connect and seal the air nozzle 401, and the sealing gasket 203 and the air nozzle 401 fit more closely, resulting in a better sealing effect.

[0040] Specifically, such as Figures 1-5 As shown, two connecting grooves 206 are provided on the inner wall of the connecting frame 205, and the inner walls of the two connecting grooves 206 and the inner wall of the connecting frame 205 are slidably connected to the sides of the two abutments 204.

[0041] In this embodiment: through the provided connecting groove 206, in the initial state, one side of the abutment 204 is located inside the connecting groove 206 and does not press the abutment 204. When the connecting frame 205 rotates at a certain angle, the abutment 204 contacts the inner wall of the connecting frame 205, and the inner wall of the connecting frame 205 presses the abutment 204, causing the abutment 204 to move a certain distance.

[0042] The fixing mechanism 3 is located below the positioning component 102. The fixing mechanism 3 includes a fixing ring 301 fixedly installed on the outer wall of the sealing cylinder 201, and a fixing post 303 is provided below the fixing ring 301. The fixing mechanism 3 is used to fix the connecting frame 205.

[0043] Specifically, such as Figures 1-6 As shown, two fixing strips 302 are fixedly installed on the bottom surface of the fixing ring 301. The lower side of the two fixing strips 302 is fixedly connected to the two ends of the two fixing posts 303 respectively. Two grooves 304 are opened through the outer wall of the connecting frame 205. The inner walls of the two grooves 304 are slidably connected to the outer walls of the two fixing posts 303 respectively.

[0044] In this embodiment: by setting the fixed column 303 and the groove 304, the relative position of the groove 304 and the fixed column 303 changes when the connecting frame 205 rotates.

[0045] Specifically, such as Figures 1-6 As shown, the connecting frame 205 has two cavities 305 inside. Movable plates 306 are slidably installed on the inner walls of the two cavities 305 respectively. Springs 308 are fixedly installed on the bottom surfaces of the two movable plates 306 respectively. The lower ends of the two springs 308 are fixedly connected to the lower inner walls of the two cavities 305 respectively.

[0046] In this embodiment: the spring 308 applies a spring force to the moving plate 306, so that the moving plate 306 has a continuous upward thrust.

[0047] Specifically, such as Figures 1-6 As shown, wedge blocks 307 are fixedly installed on the top surfaces of the two movable plates 306 respectively. The upper ends of the two wedge blocks 307 slide through the upper ends of the two cavities 305 and extend into the interior of the groove 304. The two wedge blocks 307 are respectively engaged with the two fixed columns 303. A sliding groove 309 is opened through one side of each of the two cavities 305. Adjusting blocks 310 are fixedly installed on the sides of the two movable plates 306 respectively. The sides of the two adjusting blocks 310 are slidably connected to the inner walls of the two sliding grooves 309 respectively.

[0048] In this embodiment: the wedge block 307 is provided to cooperate with the groove 304, thereby fixing the connecting frame 205 and the fixing post 303. The adjustment block 310 is provided so that the wedge block 307 can be moved downward, and the fixing post 303 is no longer fixed to the connecting frame 205, which facilitates adjustment.

[0049] Specifically, this solution involves positioning the product 4 using the positioning component 102, connecting the air nozzle 401 on the product 4 to the sealing cylinder 201. The sealing gasket 203 provides initial sealing to the air holes on both sides of the air nozzle 401. Rotating the connecting frame 205 causes a change in the relative position of the abutment 204 and the connecting groove 206, moving the connecting groove 206 away from the abutment 204. The inner wall of the connecting frame 205 contacts the side of the abutment 204, pushing it a short distance. The abutment 204 then presses against the sealing gasket 203, enhancing its sealing effect on the air holes on both sides of the air nozzle 401. Furthermore, when the air pressure inside the air nozzle 401 increases, leakage is less likely to occur at the air nozzle 401, improving the sealing quality. The connecting frame 205 drives the wedge block 307 to rotate. When the wedge block 307 contacts the fixed post 303, under the pressure of the fixed post 303, the wedge block 307 drives the moving plate 306 to move downward. The moving plate 306 presses against the spring 308. When the wedge block 307 moves to the other side of the fixed post 303, the spring 308 pushes the moving plate 306 and the wedge block 307 to move upward. The wedge block 307 engages with the fixed post 303, thereby fixing the connecting frame 205. This makes it difficult for the connecting frame 205 to rotate, ensuring that the abutment 204 pushes the sealing gasket 203 to seal the air nozzle 401, preventing loosening and further improving the sealing effect. Subsequently, the product 4 is inspected by the detection component 101.

[0050] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary; within the framework of this invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of this invention as described above, which are not provided in the details for the sake of brevity.

[0051] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A nozzle sealing mechanism for an air pressure testing machine, comprising: A frame (1), on the top surface of which a detection component (101) and a positioning component (102) are fixedly installed, a product (4) is disposed on the inner wall of the positioning component (102), and an air nozzle (401) is disposed on the bottom surface of the product (4), characterized in that it further includes: A sealing mechanism (2) is provided above the frame (1). The sealing mechanism (2) includes a sealing cylinder (201) installed on the top surface of the frame (1). A sealing gasket (203) is provided inside the sealing cylinder (201). A connecting frame (205) is rotatably connected to the top surface of the outer side of the sealing cylinder (201). The sealing mechanism (2) is used to seal the air nozzle (401). The fixing mechanism (3) is located below the positioning component (102). The fixing mechanism (3) includes a fixing ring (301) fixedly installed on the outer wall of the sealing cylinder (201). A fixing post (303) is provided below the fixing ring (301). The fixing mechanism (3) is used to fix the connecting frame (205).

2. The air nozzle sealing mechanism for an air pressure testing machine according to claim 1, characterized in that, The sealing cylinder (201) has two through mounting holes (202) on its side, and the inner wall of the connecting frame (205) is slidably connected to the outer wall of the sealing cylinder (201).

3. The air nozzle sealing mechanism for an air pressure testing machine according to claim 2, characterized in that, A sealing gasket (203) is fixedly installed on the inner wall of each of the two mounting holes (202), and the inner wall of the sealing gasket (203) abuts against the outer wall of the air nozzle (401).

4. The air nozzle sealing mechanism for an air pressure testing machine according to claim 3, characterized in that, Abutments (204) are fixedly installed on the opposite sides of the two sealing gaskets (203). The other side of the two abutments (204) is set as an inclined surface, and one side of the two abutments (204) extends slightly beyond the outer wall of the sealing cylinder (201).

5. The air nozzle sealing mechanism for an air pressure testing machine according to claim 4, characterized in that, The inner wall of the connecting frame (205) has two connecting grooves (206), and the inner walls of the two connecting grooves (206) and the inner wall of the connecting frame (205) are slidably connected to the sides of the two abutments (204).

6. The air nozzle sealing mechanism for an air pressure testing machine according to claim 1, characterized in that, Two fixing strips (302) are fixedly installed on the bottom surface of the fixing ring (301). The lower side of the two fixing strips (302) is fixedly connected to the two ends of the two fixing posts (303). Two grooves (304) are opened through the outer wall of the connecting frame (205). The inner walls of the two grooves (304) are slidably connected to the outer walls of the two fixing posts (303).

7. The air nozzle sealing mechanism for an air pressure testing machine according to claim 6, characterized in that, The connecting frame (205) has two cavities (305) inside. Movable plates (306) are slidably installed on the inner walls of the two cavities (305). Springs (308) are fixedly installed on the bottom surfaces of the two movable plates (306). The lower ends of the two springs (308) are fixedly connected to the lower inner walls of the two cavities (305).

8. The air nozzle sealing mechanism for an air pressure testing machine according to claim 7, characterized in that, Two movable plates (306) are respectively fixedly installed with wedge blocks (307) on their top surfaces. The upper ends of the two wedge blocks (307) slide through the upper ends of the two cavities (305) and extend into the groove (304). The two wedge blocks (307) are respectively engaged with two fixed columns (303). The two cavities (305) are respectively provided with sliding grooves (309) on one side. The two movable plates (306) are respectively fixedly installed with adjusting blocks (310) on their sides. The sides of the two adjusting blocks (310) are respectively slidably connected to the inner walls of the two sliding grooves (309).

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