Spliced pipe air tightness detection device

Abstract

The invention discloses a splicing pipe air tightness detection device, and relates to the technical field of air tightness detection equipment. The device comprises a placing table serving as a carrier; the supporting and sealing mechanism is located on the containing table and inserted into the splicing pipe, and a sealing rubber part is arranged at the top end of the supporting and sealing mechanism; the displacement inflation cover is located above the supporting sealing mechanism, can move up and down and is used for sealing the upper end of the splicing pipe and extruding the sealing rubber part to enable the sealing rubber part to deform to be tightly attached to the inner wall of the product, and the sealing rubber part can be matched with the sealing rubber part to form a closed containing cavity in the product; and the pressurization testing mechanism is connected with the displacement inflation cover through a pipeline and is used for inflating gas into the product and monitoring the air pressure change in the product. The beneficial effects of the invention are that the sealing rubber member can form a tight ring on the inner wall of the product and cooperate with the displacement inflation cover to form a closed cavity in the splicing pipe, thereby avoiding the gap of the splicing pipe, and enabling the equipment to detect the airtightness of the splicing pipe.

Description

Technical Field

[0001] The present invention relates to the technical field of air tightness detection equipment, and in particular to an air tightness detection device for a spliced ​​pipe. Background Art

[0002] In modern industrial production, many modern industrial products and equipment have airtightness requirements, especially for some precision instruments, equipment and containers, airtightness is of paramount importance, and the quality of their airtightness is often directly linked to their quality.

[0003] In the existing pipe air tightness detection device, most of them seal the two ends of the spliced ​​pipe to achieve the sealing of the pipeline, so as to perform air tightness detection. When there is a gap in the spliced ​​pipe, the traditional air tightness detection device is not applicable. Therefore, there is an urgent need for an air tightness detection device that can detect the spliced ​​pipe with a gap. Summary of the Invention

[0004] The purpose of the present invention is to provide a spliced ​​pipe air tightness detection device to address the problem in the prior art that the existing pipe air tightness detection device cannot detect spliced ​​pipes with gaps.

[0005] To achieve the above object, the present invention adopts the following technical solution: a device for detecting air tightness of a spliced ​​pipe, comprising: Place the table as a carrier; The supporting sealing mechanism is located on the placement table. The supporting sealing mechanism is inserted into the splicing tube, and the top of the supporting sealing mechanism is a sealing rubber part. The sealing rubber part can form a tight ring on the inner wall of the product, thereby effectively preventing gas leakage and improving the accuracy of air tightness detection.

[0006] The displacement inflatable hood is located above the supporting sealing mechanism and can move up and down. It is used to close the upper end of the splicing tube and squeeze the sealing rubber part to deform it and fit tightly against the inner wall of the product. The sealing rubber can cooperate with the sealing rubber part to form a closed cavity in the product. The up and down movement function of the displacement inflatable hood enables the device to adapt to splicing tubes of different lengths. The pressurization test mechanism is connected to the displacement inflation hood through a pipeline and is used to fill gas into the product and monitor the changes in air pressure inside the product.

[0007] By precisely controlling the inflation and sealing process, the device can quickly perform airtightness testing, reducing testing time and improving overall efficiency. Its simple operation also reduces the workload of operators.

[0008] Furthermore, the supporting sealing mechanism also includes a base and a supporting platform. The supporting platform is installed on the placement table through the base. The top of the supporting platform is provided with a through hole for connecting with the rubber sealing member. The height of the supporting platform determines the position of the sealing rubber member in the splicing tube.

[0009] Furthermore, the sealing rubber component includes a plug-in end adapted to the through hole and an elastic sealing end, and the diameter of the sealing end is adapted to the inner diameter of the splicing tube.

[0010] Furthermore, the displacement inflatable hood includes a hood body for sealing the upper end of the splicing tube and an inflatable column for squeezing the sealing rubber piece to deform it, and the hood body is used to seal the top end of the splicing tube.

[0011] Furthermore, the cover body is provided with a first annular sealing groove, in which a sealing rubber is provided, and the sealing rubber can ensure the stability and reliability of the sealing performance, thereby reducing the possibility of gas leakage.

[0012] Furthermore, the cover body and the inflatable column are integrally formed.

[0013] Furthermore, a first air inlet duct connected to the pipeline is provided in the cover body, a second air inlet duct connected to the first air inlet duct is provided in the inflatable column, and an output end of the second air inlet duct is located on the side wall of the inflatable column.

[0014] Furthermore, the system also includes a driver for driving the displacement inflatable hood to move up and down, and a guide rod connected to the displacement inflatable hood to guide it. The guide rod ensures that the displacement inflatable hood remains stable during movement, reducing detection errors caused by poor sealing due to deviation.

[0015] Furthermore, the boost test mechanism includes a boost module and a pressure detection module.

[0016] After adopting the above technical solution, the beneficial effect of the present invention is: the sealing rubber part can form a tight ring on the inner wall of the product and cooperate with the displacement inflation hood to form a closed cavity in the splicing tube, thereby avoiding the gap in the splicing tube, so that the equipment can detect the air tightness of the splicing tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 It is a structural schematic diagram of the present invention.

[0019] Figure 2 It is a structural schematic diagram of the supporting sealing mechanism in the present invention.

[0020] Figure 3It is a structural schematic diagram of the displacement inflatable hood in the present invention.

[0021] Figure 4 It is a cross-sectional view of the displacement inflatable hood in the present invention.

[0022] Explanation of the accompanying drawings: placement table 1, supporting sealing mechanism 2, sealing rubber part 21, plug-in end 211, sealing end 212, supporting platform 22, through hole 221, base 23, displacement inflation cover 3, cover body 31, first sealing groove 311, sealing rubber 312, first air inlet duct 313, inflation column 32, second air inlet duct 321, boost test mechanism 4, driver 5, guide rod 6. DETAILED DESCRIPTION

[0023] See Figure 1-4 As shown, the technical solution adopted in this specific embodiment is: a device for detecting air tightness of a spliced ​​pipe, which includes: Place table 1 as a carrier; The supporting sealing mechanism 2 is located on the placement table 1. The supporting sealing mechanism 2 is inserted into the splicing tube, and the top of the supporting sealing mechanism 2 is a sealing rubber part 21; the sealing rubber part 21 can form a tight closed circle on the inner wall of the product, thereby effectively preventing gas leakage and improving the accuracy of air tightness detection.

[0024] The displacement inflatable hood 3 is located above the supporting sealing mechanism 2 and can move up and down. It is used to close the upper end of the splicing tube while squeezing the sealing rubber part 21 to deform it and fit tightly against the inner wall of the product. The sealing rubber 312 can cooperate with the sealing rubber part 21 to form a closed cavity in the product; the up and down movement function of the displacement inflatable hood 3 enables the device to adapt to splicing tubes of different lengths.

[0025] The pressurization test mechanism 4, connected to the displacement inflation hood 3 via a pipeline, is used to inject gas into the product and monitor changes in air pressure within the product. By precisely controlling the inflation and sealing processes, the device can quickly perform airtightness testing, reducing testing time and improving overall efficiency. Its simple operation also reduces operator workload. The pressurization test mechanism 4 includes a pressurization module and a pressure detection module. In this embodiment, the pressurization module is a booster pump connected to the displacement inflation hood 3 via a pipeline. The pressure detection module is used to monitor the air pressure within the spliced ​​tube after pressurization.

[0026] The driver 5 is used to drive the displacement inflatable cover 3 to move up and down. In this embodiment, the driver is a pneumatic lifting rod.

[0027] The guide rod 6 is connected to the displacement inflatable cover 3 and plays a guiding role during the movement of the displacement inflatable cover 3. It ensures that the displacement inflatable cover 3 remains stable during the movement and reduces the detection error caused by poor sealing due to deviation.

[0028] The specific supporting sealing mechanism 2 also includes a base 23 and a supporting platform 22. The supporting platform 22 is installed on the placement platform 1 through the base 23. The top of the supporting platform 22 is provided with a through hole 221 for connecting with the rubber sealing part. The height of the supporting platform 22 determines the position of the sealing rubber part 21 in the splicing tube.

[0029] Specifically, the sealing rubber member 21 includes a plug-in end 211 adapted to the through hole 221 and an elastic sealing end 212 . The sealing end 212 is truncated cone-shaped and has a diameter adapted to the inner diameter of the spliced ​​pipe.

[0030] Specifically, the displacement inflatable hood 3 includes a hood body 31 for sealing the upper end of the splicing tube and an inflatable column 32 for squeezing the sealing rubber member 21 to deform it. The hood body 31 is used to seal the top end of the splicing tube.

[0031] Specifically, the cover body 31 is provided with an annular first sealing groove 311, and a sealing rubber 312 is provided in the first sealing groove 311. The sealing rubber 312 can ensure the stability and reliability of the sealing performance, thereby reducing the possibility of gas leakage.

[0032] Specifically, the cover body 31 and the inflatable column 32 are integrally formed.

[0033] Specifically, a first air inlet duct 313 communicating with the pipeline is provided in the cover body 31 , a second air inlet duct 321 communicating with the first air inlet duct 313 is provided in the inflation column 32 , and an output end of the second air inlet duct 321 is located on the side wall of the inflation column 32 .

[0034] The working principle of the present invention is as follows: the splicing pipe to be tested is mounted on the supporting sealing mechanism 2. The driver 5 is then activated to move the displacement inflation hood 3 downward to the lower end of the splicing pipe, where it is squeezed against the sealing rubber member 21 by the inflation column 32 to deform and seal the splicing pipe. The sealing rubber 312 in the first sealing groove 311 is then sealed against the upper end of the splicing pipe to form a closed cavity. At this time, the splicing portion of the splicing pipe is located within the closed cavity. Finally, the boost module is activated to fill the splicing pipe with gas via the inflation column 32. When the air pressure in the splicing pipe reaches a preset value, inflation is stopped. The pressure detection module detects whether the pressure in the splicing pipe changes to determine whether there is any leakage at the splicing pipe connection.

[0035] The above description is only used to illustrate the technical solution of the present invention and is not intended to limit it. Other modifications or equivalent substitutions made to the technical solution of the present invention by ordinary technicians in this field should be included in the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. A device for detecting air tightness of a spliced ​​pipe, characterized in that: include: A placement table (1) is used as a carrier; A supporting sealing mechanism (2) is located on the placement platform (1), the supporting sealing mechanism (2) is inserted into the splicing tube, and the top of the supporting sealing mechanism (2) is a sealing rubber member (21); A displacement inflatable hood (3) is located above the supporting sealing mechanism (2) and can move up and down, and is used to seal the upper end of the splicing tube while squeezing the sealing rubber piece (21) to deform it and fit closely to the inner wall of the product. The sealing rubber (312) can cooperate with the sealing rubber piece (21) to form a closed cavity in the product; The pressurization test mechanism (4) is connected to the displacement inflation hood (3) through a pipeline and is used to inject gas into the product and monitor the change of gas pressure in the product.

2. The air tightness detection device for a spliced ​​pipe according to claim 1, characterized in that: The supporting sealing mechanism (2) also includes a base (23) and a bearing platform (22); the bearing platform (22) is mounted on the placement platform (1) via the base (23); and a through hole (221) for connecting to a rubber seal is provided at the top of the bearing platform (22).

3. A device for detecting air tightness of a spliced ​​pipe according to claims 1 and 2, characterized in that: The sealing rubber part (21) comprises a plug-in end (211) adapted to the through hole (221) and a sealing end (212) having elasticity.

4. The air tightness detection device for a spliced ​​pipe according to claim 1, characterized in that: The displacement inflation hood (3) comprises a hood body (31) for sealing the upper end of the splicing tube and an inflation column (32) for squeezing the sealing rubber piece (21) to deform it.

5. The air tightness detection device for a spliced ​​pipe according to claim 4, characterized in that: The cover body (31) is provided with an annular first sealing groove (311), and a sealing rubber (312) is provided in the first sealing groove (311).

6. The air tightness detection device for a spliced ​​pipe according to claim 4, characterized in that: The cover body (31) and the inflatable column (32) are integrally formed.

7. The air tightness detection device for a spliced ​​pipe according to claim 4, characterized in that: A first air inlet (313) connected to the pipeline is provided in the cover body (31), a second air inlet (321) connected to the first air inlet (313) is provided in the inflation column (32), and an output end of the second air inlet (321) is located on the side wall of the inflation column (32).

8. The air tightness detection device for a spliced ​​pipe according to claim 1, characterized in that: It also includes a driver (5) for driving the displacement inflatable hood (3) to move up and down, and a guide rod (6) connected to the displacement inflatable hood (3) to play a guiding role.

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