Elbow air tightness detection device

Abstract

The utility model discloses an elbow air tightness detection device which comprises a bottom plate, a support frame is fixed on one side of the top of the bottom plate, a ventilation mechanism is arranged on the bottom plate in a sliding mode, a plugging mechanism is installed on the support frame through a driving mechanism, and a clamping mechanism is installed at the position, facing the ventilation mechanism, of the bottom of the outer wall of the support frame. The plugging mechanism comprises a first mounting table mounted on the driving mechanism, a threaded sleeve fixedly penetrates through the first mounting table, a first extrusion circular truncated cone is fixed to the bottom of the threaded sleeve, a first screw is in threaded connection with the interior of the threaded sleeve, and a second extrusion circular truncated cone is fixed to the bottom of the first screw; and a first sealing ring is arranged between the first extrusion circular truncated cone and the second extrusion circular truncated cone. According to the utility model, better sealing detection is realized, and the device is suitable for testing elbows with different heights and keeps certain stability.

Description

Technical Field

[0001] The utility model relates to the technical field of elbow air tightness detection, in particular to an elbow air tightness detection device. Background Art

[0002] With the development of the times, cars have gradually become more popular, and the number of corresponding parts processing manufacturers has also increased year by year. Elbows are widely used in automotive parts. And the elbows used in automobile parts need to be tested for air tightness after production.

[0003] The air tightness test of the elbow requires sealing at one end and inflating at the other end, and then observing the air pressure changes. The current sealing method is mostly plugging, which requires manual squeezing. The plug cap itself is small and inconvenient to operate. In addition, this method is difficult to ensure that the sealing requirements are met. There is a lack of a specific workpiece to keep the elbow stable for effective testing. To this end, we designed an elbow air tightness testing device. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes an elbow air tightness detection device.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] An elbow air tightness detection device comprises a base plate, a support frame is fixed to one side of the top of the base plate, a ventilation mechanism is slidably provided on the base plate, a blocking mechanism is installed on the support frame via a driving mechanism, and a clamping mechanism is installed at the bottom of the outer wall of the support frame facing the ventilation mechanism;

[0007] The sealing mechanism includes a first mounting platform installed on the driving mechanism, a threaded sleeve is fixedly passed through the first mounting platform, a first extrusion round platform is fixed to the bottom of the threaded sleeve, a first screw is connected to the inner thread of the threaded sleeve, a second extrusion round platform is fixed to the bottom of the first screw, and a first sealing ring is arranged between the first extrusion round platform and the second extrusion round platform.

[0008] As a further solution of the present invention, the driving mechanism includes a first mounting groove opened on the outer wall of the support frame, a threaded screw is rotatably connected to the bottom of the first mounting groove, a driving motor is fixed to the top of the support frame, the output shaft of the driving motor is coaxially fixed with the threaded screw, a first adapter block adapted to it is installed on the threaded screw, and the first adapter block is fixed to the first mounting platform.

[0009] As a further solution of the present invention, the ventilation mechanism includes a second mounting platform, a third extrusion platform is fixed on the side of the second mounting platform facing the support frame, a screw hole is provided on the second mounting platform, and a second screw is threadedly connected to the screw hole, a hole is provided on the third extrusion platform for the second screw to pass through, and a fourth extrusion platform is fixed on one end of the second screw passing through the third extrusion platform, the second screw is a hollow tube, and a hole is provided on the fourth extrusion platform that passes through the second screw, and a second sealing ring is arranged between the fourth extrusion platform and the third extrusion platform.

[0010] As a further solution of the present invention, a connecting pipe is fixed to one end of the second screw away from the fourth extrusion cone, a pressure gauge is installed on the connecting pipe, a valve is fixed to the other end of the connecting pipe, and the outer wall of the second screw is fixed with a first turntable with a central opening.

[0011] As a further solution of the present invention, a slide rail is fixed to the top of the base plate, a slider is slidably provided on the slide rail, and the second mounting platform is fixed on the slider.

[0012] As a further solution of the present invention, the clamping mechanism includes a support panel fixed on the support frame, the support panel is provided with a second mounting slot, a bidirectional screw rod is rotatably arranged in the second mounting slot, the outer wall of the support panel is provided with a second turntable coaxially fixed with the bidirectional screw rod, the bidirectional screw rod is provided with two second adapter blocks adapted thereto, and the second adapter block is fixed on the second adapter block, the top of the support panel is located between the two clamping plates and has an adapter slot, the clamping mechanism is provided with a support panel, a second mounting slot, a bidirectional screw rod, a clamping plate and a second turntable, and the elbow is placed on the support panel, and by rotating the second turntable, the two second adapter blocks on the bidirectional screw rod can be brought close to each other, and the two clamping plates are brought close to each other, so that the elbow is clamped and fixed, which is convenient for testing and avoids tilting.

[0013] The beneficial effects of the utility model are:

[0014] The utility model adopts a sealing mechanism, a ventilation mechanism and a driving mechanism, so the elbow is passed through the outer walls of the first extrusion cone and the second extrusion cone, and the first sealing ring located between the first extrusion cone and the second extrusion cone is squeezed and expanded to seal the inner wall of the elbow. Similarly, the second sealing ring is squeezed to expand and seal against the inner wall of the elbow, and the connecting pipe and the valve connected by the second screw can be connected to the air source for inflation. Since the second screw, the fourth extrusion cone and the third extrusion cone are connected, the gas fills the inside of the elbow, and then the valve is closed, and the pressure change of the barometer is observed to determine whether there is a leak. The threaded screw can be rotated by driving the motor to achieve height adjustment of the sealing mechanism, and the displacement of the ventilation mechanism can be adjusted to achieve better sealing detection and adapt to elbow tests of different heights.

[0015] The utility model: the clamping mechanism includes a support panel, a second mounting groove, a bidirectional screw rod, a clamping plate and a second turntable. The set elbow is placed on the support panel. By rotating the second turntable, the two second adapter blocks on the bidirectional screw rod can be made close to each other, and the two clamping plates can be made close to each other to clamp and fix the elbow, which is convenient for testing and avoids tilting. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of an elbow air tightness detection device proposed by the utility model;

[0017] Figure 2 This is a partially expanded three-dimensional structural diagram of a sealing mechanism of an elbow air tightness detection device proposed by the present invention;

[0018] Figure 3 This is a partially expanded three-dimensional structural diagram of a ventilation mechanism of an elbow air tightness detection device proposed by the present invention;

[0019] Figure 4 This is a schematic diagram of the three-dimensional structure of the clamping mechanism of the elbow air tightness detection device proposed by the utility model.

[0020] In the figure: 1. Base plate; 2. Support frame; 3. Sealing mechanism; 301. Threaded sleeve; 302. First extrusion cone; 303. First screw; 304. Second extrusion cone; 305. First sealing ring; 4. Ventilation mechanism; 401. Third extrusion cone; 402. Second sealing ring; 403. Fourth extrusion cone; 404. Second screw; 405. Connecting pipe; 406. First turntable; 407. Pressure gauge; 408. Valve; 5. Clamping mechanism; 6. Drive motor; 7. First mounting groove; 8. Threaded screw; 9. First mounting platform; 10. Slide rail; 11. Slider; 12. Second mounting platform; 13. Support panel; 15. Second mounting groove; 16. Bidirectional screw; 18. Clamping plate; 19. Second turntable. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0023] Reference Figure 1-4 A device for testing air tightness of an elbow comprises a base plate 1, a support frame 2 is fixed to one side of the top of the base plate 1, a ventilation mechanism 4 is slidingly provided on the base plate 1, a blocking mechanism 3 is installed on the support frame 2 via a driving mechanism, and a clamping mechanism 5 is installed at the bottom of the outer wall of the support frame 2 facing the ventilation mechanism 4;

[0024] The sealing mechanism 3 includes a first mounting platform 9 installed on the driving mechanism, a threaded sleeve 301 is fixedly passed through the first mounting platform 9, a first extrusion platform 302 is fixed to the bottom of the threaded sleeve 301, a first screw 303 is connected to the internal thread of the threaded sleeve 301, a second extrusion platform 304 is fixed to the bottom of the first screw 303, and a first sealing ring 305 is arranged between the first extrusion platform 302 and the second extrusion platform 304.

[0025] In this embodiment, the driving mechanism includes a first mounting groove 7 opened on the outer wall of the support frame 2, and a threaded screw 8 is rotatably connected to the bottom of the first mounting groove 7. A driving motor 6 is fixed to the top of the support frame 2, and the output shaft of the driving motor 6 is coaxially fixed with the threaded screw 8. A first adapter block adapted to it is installed on the threaded screw 8, and the first adapter block is fixed to the first mounting platform 9.

[0026] In this embodiment, the ventilation mechanism 4 includes a second mounting platform 12, and a third extrusion platform 401 is fixed to the side of the second mounting platform 12 facing the support frame 2. A screw hole is provided on the second mounting platform 12, and a second screw rod 404 is threadedly connected to the inner thread of the screw hole. A hole is provided on the third extrusion platform 401 for the second screw rod 404 to pass through. The second screw rod 404 passes through one end of the third extrusion platform 401 and is fixed with a fourth extrusion platform 403. The second screw rod 404 is a hollow tube, and a hole is provided on the fourth extrusion platform 403 that passes through the second screw rod 404. A second sealing ring 402 is arranged between the fourth extrusion platform 403 and the third extrusion platform 401.

[0027] In this embodiment, a connecting pipe 405 is fixed to one end of the second screw 404 away from the fourth extrusion cone 403, a pressure gauge 407 is installed on the connecting pipe 405, a valve 408 is fixed to the other end of the connecting pipe 405, and the outer wall of the second screw 404 is fixed with a first turntable 406 with a central opening.

[0028] In this embodiment, a slide rail 10 is fixed to the top of the base plate 1 , a slider 11 is slidably provided on the slide rail 10 , and the second mounting platform 12 is fixed on the slider 11 .

[0029] In this embodiment, the clamping mechanism 5 includes a support panel 13 fixed on the support frame 2, and a second mounting groove 15 is provided on the support panel 13. A bidirectional screw rod 16 is rotatably arranged in the second mounting groove 15. The outer wall of the support panel 13 is provided with a second turntable 19 coaxially fixed with the bidirectional screw rod 16. Two second adapter blocks adapted to the bidirectional screw rod 16 are installed on the bidirectional screw rod 16, and a clamping plate 18 is fixed on the second adapter block. The top of the support panel 13 is located between the two clamping plates 18 and has an adapter groove. The clamping mechanism 5 includes a support panel 13, a second mounting groove 15, a bidirectional screw rod 16, a clamping plate 18 and a second turntable 19. The elbow is placed on the support panel 13. By rotating the second turntable 19, the two second adapter blocks on the bidirectional screw rod 16 can be brought close to each other, and the two clamping plates 18 are brought close to each other, so that the elbow is clamped and fixed, which is convenient for testing and avoids tilting.

[0030] Working principle: through the arrangement of the base plate 1, the support frame 2, the blocking mechanism 3, the ventilation mechanism 4 and the driving mechanism, etc., wherein the blocking mechanism 3 includes a threaded sleeve 301, a first extrusion table 302, a first screw 303, a second extrusion table 304 and a first sealing ring 305, and the ventilation mechanism 4 includes a third extrusion table 401, a second sealing ring 402, a fourth extrusion table 403, a second screw 404, a connecting pipe 405, a first turntable 406, a pressure gauge 407 and a valve 408. Through the above design, one end of the elbow is installed in the blocking mechanism 3, and the other end is installed on the ventilation mechanism 4. The elbow is installed on the outer walls of the first extrusion table 302 and the second extrusion table 304. By rotating the first screw 303, the first screw 303 drives the second extrusion table 304 to move upward, and the valve 408 is located between the first extrusion table 302 and the fourth extrusion table 403. The first sealing ring 305 between the two extrusion cones 304 is squeezed and expanded to seal the inner wall of the elbow. Similarly, the rotation of the second screw 404 causes the fourth extrusion cone 403 to move close to the third extrusion cone 401, and the second sealing ring 402 is squeezed, causing it to expand and seal against the inner wall of the elbow, and the connecting pipe 405 and valve 408 connected to the second screw 404 can be connected to the air source for inflation. Since the second screw 404, the fourth extrusion cone 403 and the third extrusion cone 401 are connected, the gas fills the inside of the elbow, and then the valve 408 is closed, and the air pressure change of the pressure gauge 407 is observed to determine whether there is a leak. The threaded screw 8 can be rotated by driving the motor 6 to achieve height adjustment of the sealing mechanism 3, and the displacement of the ventilation mechanism 4 can be adjusted to achieve better sealing detection and adapt to elbow tests of different heights.

[0031] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0032] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0033] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An elbow air tightness detection device, comprising a bottom plate (1), characterized in that: A support frame (2) is fixed to one side of the top of the base plate (1); a ventilation mechanism (4) is slidably provided on the base plate (1); a blocking mechanism (3) is installed on the support frame (2) via a driving mechanism; and a clamping mechanism (5) is installed at a position on the bottom of the outer wall of the support frame (2) facing the ventilation mechanism (4); The blocking mechanism (3) comprises a first mounting platform (9) mounted on the driving mechanism, a threaded sleeve (301) is fixedly passed through the first mounting platform (9), a first extrusion truncated platform (302) is fixed to the bottom of the threaded sleeve (301), a first screw rod (303) is internally threadedly connected to the threaded sleeve (301), a second extrusion truncated platform (304) is fixed to the bottom of the first screw rod (303), and a first sealing ring (305) is provided between the first extrusion truncated platform (302) and the second extrusion truncated platform (304).

2. The elbow air tightness detection device according to claim 1, characterized in that: The driving mechanism comprises a first mounting groove (7) provided on the outer wall of the support frame (2), a threaded screw (8) being rotatably connected to the bottom of the first mounting groove (7), a driving motor (6) being fixed to the top of the support frame (2), an output shaft of the driving motor (6) being coaxially fixed to the threaded screw (8), a first adapter block adapted to the threaded screw (8) being installed on the threaded screw (8), and the first adapter block being fixed to the first mounting platform (9).

3. The elbow air tightness detection device according to claim 1, characterized in that: The ventilation mechanism (4) comprises a second mounting platform (12), a third extrusion truncated platform (401) is fixed on the side of the second mounting platform (12) facing the support frame (2), a screw hole is provided on the second mounting platform (12), and a second screw rod (404) is threadedly connected to the screw hole, a hole is provided on the third extrusion truncated platform (401) for the second screw rod (404) to pass through, a fourth extrusion truncated platform (403) is fixed on one end of the second screw rod (404) passing through the third extrusion truncated platform (401), the second screw rod (404) is a hollow tube, and a hole is provided on the fourth extrusion truncated platform (403) that passes through the second screw rod (404), and a second sealing ring (402) is provided between the fourth extrusion truncated platform (403) and the third extrusion truncated platform (401).

4. The elbow air tightness detection device according to claim 3, characterized in that: A connecting pipe (405) is fixed to one end of the second screw (404) away from the fourth extrusion cone (403), a pressure gauge (407) is installed on the connecting pipe (405), a valve (408) is fixed to the other end of the connecting pipe (405), and a first rotary disc (406) with a central opening is fixedly sleeved on the outer wall of the second screw (404).

5. The elbow air tightness detection device according to claim 4, characterized in that: A slide rail (10) is fixed on the top of the base plate (1), a slider (11) is slidably arranged on the slide rail (10), and the second mounting platform (12) is fixed on the slider (11).

6. The elbow air tightness detection device according to claim 1, characterized in that: The clamping mechanism (5) includes a support panel (13) fixed on the support frame (2), a second mounting groove (15) is provided on the support panel (13), a bidirectional screw rod (16) is rotatably arranged in the second mounting groove (15), a second turntable (19) is provided on the outer wall of the support panel (13) and is coaxially fixed with the bidirectional screw rod (16), two second adapter blocks adapted to the bidirectional screw rod (16) are installed on the bidirectional screw rod (16), and a clamping plate (18) is fixed on the second adapter block.

7. The elbow air tightness detection device according to claim 6, characterized in that: An adaption groove is provided on the top of the support panel (13) between the two clamping plates (18).

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