A gas bellows air tightness detection device

Abstract

The present invention provides a gas bellows air tightness detection device, comprising a base; a first synchronous moving mechanism installed on one side of the base, a second synchronous moving mechanism installed on the other side of the base, the second synchronous moving mechanism installed on the opposite side of the first synchronous moving mechanism, a fixed component installed between the first synchronous moving mechanism and the second synchronous moving mechanism, an air source component connected to the second synchronous moving mechanism, and a driving component installed on the first synchronous moving mechanism, which can improve measurement efficiency and measurement accuracy.

Description

Technical Field

[0001] The invention relates to the technical field of bellows detection, in particular to a gas bellows air tightness detection device. Background Art

[0002] The gas bellows is composed of three parts: bellows, mesh sleeve and joint. The material of the bellows is usually austenitic stainless steel. The bellows itself has good flexibility. Since the main parts of the hose are made of austenitic stainless steel, the hose has excellent temperature resistance and corrosion resistance. The connections at both ends of the bellows are generally made into flange connections. The flanges are made of carbon steel and stainless steel. The material is determined according to the use location of the product.

[0003] Due to the particularity of gas, the air tightness of the bellows is very important. The existing air tightness detection equipment for bellows has the following problems: during the clamping process of the bellows, the two ends of the bellows need to be clamped to the air inlet end and the sealing end respectively, and multiple steps are required to complete this operation. At the same time, the existing detection method usually only uses the direct pressure detection method for detection, and does not perform detection in stages, which will lead to low efficiency and high error rate in the detection process. Summary of the invention

[0004] The purpose of the present invention is to provide a gas bellows air tightness detection device, which improves the detection efficiency and the detection accuracy by designing a multi-synchronous moving mechanism combined with a staged detection method.

[0005] In order to solve the above-mentioned problem, the present invention provides a gas bellows air tightness detection device, comprising a base; a first synchronous moving mechanism installed on one side of the base; a second synchronous moving mechanism installed on the other side of the base, and the second synchronous moving mechanism is installed on the opposite side of the first synchronous moving mechanism; a fixed component installed between the first synchronous moving mechanism and the second synchronous moving mechanism; an air source component connected to the second synchronous moving mechanism; and a driving component installed on the first synchronous moving mechanism.

[0006] Further, the first synchronous moving mechanism includes a first bottom plate installed on the base, a second connecting plate is fixedly provided on the first bottom plate, and the second connecting plate is L-shaped; a first guide column is installed on the second connecting plate, a third connecting plate is slidably provided on the first guide column, the third connecting plate is concave-shaped, a first sliding hole is provided on the third connecting plate, and the third connecting plate is slidably provided on the first guide column through the first sliding hole; a second guide plate is also installed on the second connecting plate, and the second guide plate includes a first supporting plate installed on the second connecting plate, the first supporting plate is T-shaped, and a first sliding groove is penetrated on the first supporting plate; two pairs of sliding holes are penetrated on the third connecting plate, a second guide column and a third guide column are slidably provided on the third connecting plate, the second guide column and the third guide column are respectively slidably provided in the two pairs of sliding holes, and a first rotating pin is provided on the second guide column and the third guide column.

[0007] Furthermore, a first deflection block is slidably provided in the first sliding groove, a first diamond block is rotatably provided on the first deflection block, first sliding grooves are provided at both ends of the first diamond block, and the two first sliding grooves are respectively slidably matched with the two first rotating pins in a one-to-one correspondence.

[0008] Furthermore, a blocking and pressure assembly is fixedly provided on the second guide column, and a first receiving plate is fixedly provided on the third guide column; the blocking and pressure assembly includes a first blocking plate mounted on the second guide column, a first plug is fixedly provided on the first blocking plate, a second wedge-shaped pressure plate is mounted on the upper wall of the first plug, and a first groove is mounted on the first receiving plate for accommodating the gas bellows.

[0009] Furthermore, the driving assembly includes a first motor mounted on the first base plate, a first gear is mounted on the driving end of the first motor, a second gear is transmitted through the first gear, the second gear is rotatably mounted on the first base plate, a first connecting rod is mounted on one end of the second gear, a second connecting rod is rotatably mounted on the first connecting rod, a first hinge support is mounted on the wall surface of the concave third connecting plate, and the second connecting rod is rotatably connected to the first hinge support.

[0010] Furthermore, the second synchronous movement mechanism includes a second bottom plate installed on the base, the fourth connecting plate is L-shaped, a fourth guide column is installed on the fourth connecting plate, a fifth connecting plate is slidably provided on the fourth guide column, the fifth connecting plate is concave-shaped, a second sliding hole is provided on the fifth connecting plate, the fifth connecting plate is slidably provided on the fourth guide column through the second sliding hole, a fifth guide column and a sixth guide column are slidably provided on the fifth connecting plate, and a second rotating pin is provided on the fifth guide column and the sixth guide column; a third guide plate is also installed on the fourth connecting plate, and the third guide plate includes a second supporting plate installed on the four connecting plates, the second supporting plate is T-shaped, a second sliding groove is penetrated through the second supporting plate, a second receiving plate is fixedly provided on the sixth guide column, and a second groove is provided on the second receiving plate for accommodating the gas bellows.

[0011] Furthermore, the air intake assembly includes a first air intake plate mounted on the fifth guide column, a first air intake nozzle is fixedly provided on the first air intake plate, a first air delivery nozzle is installed on the lower side of the first air intake plate, and the first air intake nozzle is connected to the first air delivery nozzle; a second deflection block is slidably provided in the second sliding groove, a second diamond block is rotatably provided on the second deflection block, second sliding grooves are provided at both ends of the second diamond block, and the two second sliding grooves are respectively slidably matched with the two second rotating pins in a one-to-one correspondence.

[0012] Furthermore, the fixing assembly includes a first fixing plate installed between the first bottom plate and the second bottom plate, a first slide rail is installed between the first fixing plate and the base, the first fixing plate is slidably arranged on the first slide rail, and a first support is fixedly arranged on the first fixing plate.

[0013] Furthermore, the gas source assembly includes a first air pump installed on the side wall of the base, a first gas pipe is connected between the first air pump and the first gas nozzle, a first switch valve is installed on the first gas pipe, a first pressure sensor is installed between the first switch valve and the first gas nozzle, a first flow sensor is installed between the first pressure sensor and the first gas nozzle, and the first pressure sensor and the first flow sensor are installed on the first gas pipe.

[0014] As a gas bellows air tightness detection method of the present invention, a gas bellows air tightness detection device is used, comprising:

[0015] Step 1: After both ends of the gas bellows are filled with gas by the first plug and the first gas inlet nozzle, the first gas pump is started to inflate the first gas pipeline. When the set pressure is reached, the first gas pump is turned off, the first switch valve is closed, and the pressure is maintained for a certain time t;

[0016] Step 2: The gas pressure entering the gas bellows is recorded as P1, and the gas pressure in the gas bellows after maintaining the pressure for a certain period of time is recorded as P2. The volume in the gas bellows is V, and the volume of the gas entering the gas bellows is recorded as V1;

[0017] Step 3: During the inflation phase, if V>V1, there is leakage in the gas bellows;

[0018] Step 4: There is a certain flow fluctuation in the early stage of the pressure holding stage, so the pressure holding stage needs to be divided into a balance stage t1 and a detection stage t2, where t2 and t1 satisfy 0.8<(t2 / t1)<1;

[0019] Step 5: During the detection phase, if p1>P2, there is leakage in the gas bellows;

[0020] Step 6: Testing completed.

[0021] Beneficial effects achieved by the present invention:

[0022] The present invention designs a first synchronous moving mechanism and a second synchronous moving mechanism in combination with a fixed component, so that the sealing action and the inflation loading action can be performed synchronously. The personnel only need to quickly place the gas bellows, eliminating unnecessary actions. At the same time, the diamond block and the connecting plate that cooperate with the movement are designed, which can ensure that the clamping can be performed while moving during the clamping process, thereby ensuring the efficiency of the overall structural process. The deflection block cooperates with the movement of the diamond block and the rotating pin, so that the driving force can be efficiently converted into the moving force required for the moving guide column. At the same time, in the process of moving and clamping, the measuring station can be moved away from the clamping station, thereby ensuring that the personnel reduce interference with the measurement process.

[0023] The present invention designs a multi-stage measurement method, which can divide the inflation stage and the pressure-maintaining measurement stage into two steps, thereby ensuring the efficiency and accuracy of the overall measurement process and effectively targeting the flow pulsation process in the pressure-maintaining measurement gas outlet stage.

[0024] The present invention uses a single-motor drive mode to ensure maximum utilization of the mobile energy of the entire component, fully utilize the mechanical structure to perform overall movements, and ensure the stability of the overall working structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0026] Figure 1 This is a main structure diagram of a gas bellows air tightness detection device provided in this embodiment;

[0027] Figure 2is a main structural diagram of the driving component provided in this embodiment;

[0028] Figure 3 is a connection structure diagram of the first synchronous movement mechanism provided in this embodiment;

[0029] Figure 4 It is a structural diagram of the internal connection body of the first synchronous movement mechanism provided in this embodiment;

[0030] Figure 5 This is a structural diagram of the main body of the plugging and pressure-blocking assembly provided in this embodiment;

[0031] Figure 6 is a structural diagram of the air intake assembly connection body provided in this embodiment;

[0032] Figure 7 This is the main structure diagram of the first receiving plate provided in this embodiment

[0033] Figure 8 is a structural diagram of the second synchronous movement mechanism connecting the main body provided in this embodiment;

[0034] Fig. 9 is a structural diagram of a second diamond block connection body provided in this embodiment;

[0035] Fig.10 This is a rear view of a gas bellows air tightness detection device provided in this embodiment;

[0036] Fig.11 is a diagram of the first support installation structure provided in this embodiment;

[0037] Fig.12 This is the analysis diagram of the gas bellows measurement stage;

[0038] Fig.13 It is the sensor connection diagram;

[0039] Description of the accompanying drawings: 1. base, 2. first synchronous moving mechanism, 201. first bottom plate, 202. second connecting plate, 203. third connecting plate, 2031. first sliding hole, 2032. sliding hole, 204. first guide column, 205. second guide plate, 2051. first supporting plate, 2052. first sliding groove, 206. second guide column, 207. third guide column, 208. first rotating pin, 209. first deflection block, 210. first diamond block, 211. first sliding groove, 212. blocking and pressing assembly, 2121. first blocking plate, 2122. first plugging head, 2123. second wedge-shaped pressure plate, 213. first receiving plate, 3. second synchronous moving mechanism, 4. fixing assembly, 401. first fixing plate, 402. first slide rail, 403. first support, 5. air source assembly Parts, 501, the first air pump, 502, the first air pipe, 6, driving assembly, 601, the first motor, 602, the first gear, 603, the second gear, 604, the first connecting rod, 605, the second connecting rod, 606, the first hinge support, 301, the second bottom plate, 302, the fourth connecting plate, 303, the fifth connecting plate, 3031, the second sliding hole, 304, the fourth guide column, 305, the fifth guide column, 306, the sixth guide column, 307, the second rotating pin, 308, the air intake assembly, 309, the second receiving plate, 310, the second deflection block, 311, the second diamond block, 312, the second slide groove, 313, the third guide plate, 3131, the second support plate, 3132, the second sliding groove, 3081, the first air intake plate, 3082, the first air intake nozzle, 3083, the first air delivery nozzle. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] Example 1

[0042] See also Figure 1 and Figure 2 The present embodiment provides a gas bellows air tightness detection device, comprising a base 1; a first synchronous moving mechanism 2 installed on one side of the base 1; a second synchronous moving mechanism 3 installed on the other side of the base 1, and the second synchronous moving mechanism 3 is installed on the opposite side of the first synchronous moving mechanism 2; a fixing component 4 installed between the first synchronous moving mechanism 2 and the second synchronous moving mechanism 3; a gas source component 5 connected to the second synchronous moving mechanism 3; and a driving component 6 installed on the first synchronous moving mechanism 2.

[0043] See also Figure 1-Figure 7 This embodiment provides a gas bellows air tightness detection device, wherein the first synchronous moving mechanism 2 includes a first base plate 201 mounted on the base 1, a second connecting plate 202 is fixedly provided on the first base plate 201, and the second connecting plate 202 is L-shaped.

[0044] A first guide column 204 is installed on the second connecting plate 202, and a third connecting plate 203 is slidably installed on the first guide column 204. The third connecting plate 203 is concave in design and has a first sliding hole 2031. The third connecting plate 203 is slidably installed on the first guide column 204 through the first sliding hole 2031.

[0045] A second guide plate 205 is further mounted on the second connecting plate 202 . The second guide plate 205 includes a first support plate 2051 mounted on the second connecting plate 202 . The first support plate 2051 is T-shaped. A first sliding groove 2052 penetrates the first support plate 2051 .

[0046] The third connecting plate 203 is provided with two pairs of sliding holes 2032, and the third connecting plate 203 is slidably provided with a second guide column 206 and a third guide column 207. The second guide column 206 and the third guide column 207 are respectively slidably provided in the two pairs of sliding holes 2032, and the second guide column 206 and the third guide column 207 are provided with a first rotating pin 208.

[0047] See also Figure 3-Figure 7 This embodiment provides a gas bellows air tightness detection device, wherein a first deflection block 209 is slidably provided in the first sliding groove 2052, a first diamond block 210 is rotatably provided on the first deflection block 209, first sliding grooves 211 are provided at both ends of the first diamond block 210, and the two first sliding grooves 211 are respectively slidably matched with the two first rotating pins 208 in a one-to-one correspondence.

[0048] In the above embodiment, the second guide column 206 is fixedly provided with a blocking assembly 212, and the third guide column 207 is fixedly provided with a first receiving plate 213. Figure 4 and Figure 5 As shown, the blocking and pressure assembly 212 includes a first blocking plate 2121 installed on the second guide column 206, a first plug 2122 is fixedly provided on the first blocking plate 2121, a second wedge-shaped pressure plate 2123 is installed on the upper wall of the first plug 2122, and a first groove 2131 is installed on the first receiving plate 213 for accommodating the gas bellows.

[0049] like Figure 2As shown, the driving assembly 6 includes a first motor 601 installed on the first base plate 201, the driving end of the first motor 601 is equipped with a first gear 602, the first gear 602 is transmitted with a second gear 603, the second gear 603 is rotatably arranged on the first base plate 201, one end of the second gear 603 is equipped with a first connecting rod 604, the first connecting rod 604 is rotatably provided with a second connecting rod 605, the wall surface of the concavely designed third connecting plate 203 is equipped with a first hinge support 606, and the second connecting rod 605 is rotatably connected to the first hinge support 606.

[0050] See also Figure 1 , Figure 7 , Figure 8 , Fig. 9 and Fig.10 As shown, this embodiment provides a gas bellows air tightness detection device, the second synchronous movement mechanism 3 includes a second bottom plate 301 installed on the base 1;

[0051] The fourth connecting plate 302 is L-shaped, a fourth guide post 304 is mounted on the fourth connecting plate 302, a fifth connecting plate 303 is slidably mounted on the fourth guide post 304, the fifth connecting plate 303 is concave, a second sliding hole 3031 is disposed on the fifth connecting plate 303, the fifth connecting plate 303 is slidably mounted on the fourth guide post 304 through the second sliding hole 3031, a fifth guide post 305 and a sixth guide post 306 are slidably mounted on the fifth connecting plate 303, and a second rotating pin 307 is disposed on the fifth guide post 305 and the sixth guide post 306;

[0052] A third guide plate 313 is also installed on the fourth connecting plate 302. The third guide plate 313 includes a second support plate 3131 installed on the fourth connecting plate 302. The second support plate 3131 is T-shaped. A second sliding groove 3132 runs through the second support plate 3131. A second receiving plate 309 is fixed on the sixth guide column 306. The second receiving plate 309 is provided with a second groove 3091 for accommodating the gas bellows.

[0053] like Figure 6-Figure 9 As shown, in this embodiment, the air intake assembly 308 includes a first air intake plate 3081 mounted on the fifth guide column 305, a first air intake nozzle 3082 is fixedly provided on the first air intake plate 3081, a first air delivery nozzle 3083 is installed on the lower side of the first air intake plate 3081, and the first air intake nozzle 3082 is connected to the first air delivery nozzle 3083.

[0054] See also Figure 9-12As shown, in this embodiment, a second deflection block 310 is slidably provided in the second sliding groove 3132, a second diamond block 311 is rotatably provided on the second deflection block 310, second sliding grooves 312 are provided at both ends of the second diamond block 311, and the two second sliding grooves 312 are respectively slidably matched with the two second rotating pins 307 in a one-to-one correspondence.

[0055] See also Figure 1 , Figure 3 , Fig.10 and Fig.11 As shown, the fixing assembly 4 includes a first fixing plate 401 installed between the first bottom plate 201 and the second bottom plate 301, a first slide rail 402 is installed between the first fixing plate 401 and the base 1, the first fixing plate 401 is slidably arranged on the first slide rail 402, and a first support 403 is fixedly arranged on the first fixing plate 401.

[0056] See also Figure 1 , Figure 6 and Fig.13 This embodiment provides a gas bellows air tightness detection device, the gas source component 5 includes a first air pump 501 installed on the side wall of the base 1, the first air pump 501 is connected to the first gas nozzle 3083 with a first gas pipe 502, the first gas pipe 502 is equipped with a first switch valve, a first pressure sensor is installed between the first switch valve and the first gas nozzle 3083, a first flow sensor is installed between the first pressure sensor and the first gas nozzle 3083, and the first pressure sensor and the first flow sensor are installed on the first gas pipe 502.

[0057] Specific working process:

[0058] First, place the gas bellows on the first support 403. At this time, both ends of the gas bellows are respectively mounted on the first receiving plate 213 and the second receiving plate 309, and supported by the first support 403.

[0059] Then the first motor 601 is started, the first gear 602 drives the second gear 603 to rotate, the second gear 603 drives the first connecting rod 604 to rotate, the first connecting rod 604 drives the second connecting rod 605 to rotate, the second connecting rod 605 drives the first hinge support 606 to move, and then drives the third connecting plate 203 to move on the first guide column 204;

[0060] At the same time, since the first fixed plate 401 is connected to the third connecting plate 203, the third connecting plate 203 also moves with the first fixed plate 401 on the first slide rail 402. At the same time, under the movement of the third connecting plate 203, the second guide plate 205 also moves, and then the second guide plate 205 drives the first deflection block 209 to rotate, and then the first deflection block 209 drives the first diamond block 210 to rotate, and then the first slide groove 211 on the first diamond block 210 pushes the second guide column 206 and the third guide column 207 to move.

[0061] Due to the diamond design of the first diamond block 210, the second guide column 206 and the third guide column 207 move relative to each other, thereby driving the plugging and pressing assembly 212 and the first receiving plate 213 to move relative to each other. At this time, one end of the gas bellows placed on the first receiving plate 213 is just driven to move. At the same time, the second wedge-shaped pressing plate 2123 on the plugging and pressing assembly 212 applies a certain pressure to one end of the gas bellows, assisting the gas bellows to be sealed and inserted by the first plug 2122, thereby completing the sealing of the gas bellows.

[0062] At the same time, under the movement of the first fixed plate 401, since the first fixed plate 401 is also connected to the fifth connecting plate 303, the first fixed plate 401 also drives the fifth connecting plate 303 to move on the fourth guide column 304, and then the third guide plate 313 drives the second deflection block 310 to rotate, and the second deflection block 310 drives the second diamond block 311 to rotate, and the second diamond block 311 cooperates with the second rotating pin 307 through the second sliding groove 312 to push the fifth guide column 305 and the sixth guide column 306 to move relatively.

[0063] Then, the air intake assembly 308 and the second receiving plate 309 move relatively, and then the first air intake nozzle 3082 on the air intake assembly 308 enters into the gas bellows;

[0064] Through the overall coordination of the above components, the sealing and air intake assembly processes are performed simultaneously, and there is no need for manual multi-step placement and clamping. The clamping process is also performed simultaneously, and it is only necessary to place the gas bellows on the first support 403, the first receiving plate 213, and the second receiving plate 309;

[0065] At the same time, since the third connecting plate 203 and the fifth connecting plate 303 are movable, the clamping and testing are at different positions, and the operator is far away from the testing position, thereby preventing the operator from interfering with the testing process.

[0066] Example 2

[0067] This embodiment provides a method for detecting gas tightness of a gas bellows, comprising:

[0068] Step 1: After both ends of the gas bellows are filled with the first plug 2122 and the first air inlet nozzle 3082, the first air pump 501 is started to inflate the first gas pipe 502. When the set pressure is reached, the first air pump 501 is turned off, the first switch valve is closed, and the pressure is maintained for a certain time t.

[0069] Step 2: The gas pressure entering the gas bellows is recorded as P1, the gas pressure of the gas bellows after the pressure holding stage is recorded as P2, the volume of the gas bellows is V, and the volume of the gas entering the gas bellows is recorded as V1.

[0070] Step 3: During the inflation phase, if V>V1, there is leakage in the gas bellows. At this time, if there is a certain leakage in the gas bellows, the flow rate reaching the set pressure will be greater than the original required flow rate.

[0071] Step 4: There is a certain flow fluctuation in the initial stage of the pressure holding stage, so the pressure holding stage needs to be divided into the equilibrium stage t1 and the detection stage t2, where t2 and t1 satisfy 0.8<(t2 / t1)<1, thereby ensuring the time of the equilibrium stage and ensuring the stability of the curve during the detection stage.

[0072] Step 5: In the detection stage, if p1>P2, there is leakage in the gas bellows. If there is a certain leakage in the gas bellows after the pressure holding stage, the pressure in the gas bellows will decrease. The model of the medium flow sensor is Siargo2000, the model of the pressure sensor is MPXV7002, and the model of the main controller is an industrial controller.

[0073] Step 6: Testing completed.

[0074] After setting the flow sensor and pressure sensor as mentioned above, measurements can be performed separately in two stages, including the inflation stage and the measurement stage after the pressure-maintaining stage. At the same time, the measurement stage after the pressure-maintaining stage is divided into multi-stage measurements, thereby avoiding the influence of pressure fluctuations on the measurement accuracy. The entire measurement method is simple and efficient, while ensuring the measurement accuracy.

[0075] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0076] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A gas bellows air tightness detection device, characterized in that: include, Base (1); A first synchronous movement mechanism (2) is installed on one side of the base (1); A second synchronous moving mechanism (3) is installed on the other side of the base (1), and the second synchronous moving mechanism (3) is installed on the opposite side of the first synchronous moving mechanism (2); A fixed component (4) installed between the first synchronous moving mechanism (2) and the second synchronous moving mechanism (3); An air source component (5) connected to the second synchronous moving mechanism (3); A driving assembly (6) mounted on the first synchronous moving mechanism (2); The first synchronous movement mechanism (2) comprises a first bottom plate (201) mounted on the base (1), a second connecting plate (202) being fixedly provided on the first bottom plate (201), and the second connecting plate (202) being of L-shaped design; The second connecting plate (202) is provided with a first guide column (204), a third connecting plate (203) is slidably provided on the first guide column (204), the third connecting plate (203) is concave in design, a first sliding hole (2031) is provided on the third connecting plate (203), and the third connecting plate (203) is slidably provided on the first guide column (204) through the first sliding hole (2031); A second guide plate (205) is also mounted on the second connecting plate (202), the second guide plate (205) comprising a first support plate (2051) mounted on the second connecting plate (202), the first support plate (2051) being of T-shaped design, and a first sliding groove (2052) penetrating the first support plate (2051); The third connecting plate (203) is provided with two pairs of sliding holes (2032) extending therethrough, and the third connecting plate (203) is provided with a second guide column (206) and a third guide column (207) slidably disposed thereon. The second guide column (206) and the third guide column (207) are slidably disposed in the two pairs of sliding holes (2032) respectively, and the second guide column (206) and the third guide column (207) are provided with a first rotating pin (208); A first deflection block (209) is slidably disposed in the first sliding groove (2052), a first diamond block (210) is rotatably disposed on the first deflection block (209), first sliding grooves (211) are disposed at both ends of the first diamond block (210), and the two first sliding grooves (211) are slidably matched with the two first rotating pins (208) in a one-to-one correspondence.

2. A gas bellows air tightness detection device according to claim 1, characterized in that: A blocking and pressing assembly (212) is fixedly provided on the second guide column (206), and a first receiving plate (213) is fixedly provided on the third guide column (207); The blocking and pressing assembly (212) comprises a first blocking plate (2121) mounted on the second guide column (206); a first plug (2122) is fixedly mounted on the first blocking plate (2121); a second wedge-shaped pressing plate (2123) is mounted on the upper wall of the first plug (2122); and a first groove (2131) is mounted on the first receiving plate (213) for accommodating a gas bellows.

3. A gas bellows air tightness detection device according to claim 2, characterized in that: The driving assembly (6) comprises a first motor (601) mounted on the first base plate (201); a first gear (602) is mounted on the driving end of the first motor (601); a second gear (603) is driven by the first gear (602); the second gear (603) is rotatably mounted on the first base plate (201); a first connecting rod (604) is mounted on one end of the second gear (603); a second connecting rod (605) is rotatably mounted on the first connecting rod (604); a first hinge support (606) is mounted on the wall surface of the concave third connecting plate (203); and the second connecting rod (605) is rotatably connected to the first hinge support (606).

4. A gas bellows air tightness detection device according to claim 3, characterized in that: The second synchronous movement mechanism (3) comprises a second bottom plate (301) mounted on the base (1); a fourth connecting plate (302) having an L-shaped design; a fourth guide post (304) being mounted on the fourth connecting plate (302); a fifth connecting plate (303) being slidably mounted on the fourth guide post (304); the fifth connecting plate (303) being concave in design; a second sliding hole (3031) being provided on the fifth connecting plate (303); the fifth connecting plate (303) being slidably mounted on the fourth guide post (304) through the second sliding hole (3031); a fifth guide post (305) and a sixth guide post (306) being slidably mounted on the fifth connecting plate (303); and second rotating pins (307) being provided on the fifth guide post (305) and the sixth guide post (306); A third guide plate (313) is also mounted on the fourth connecting plate (302), and the third guide plate (313) comprises a second support plate (3131) mounted on the fourth connecting plate (302), the second support plate (3131) is T-shaped, and a second sliding groove (3132) is penetrated through the second support plate (3131), and a second receiving plate (309) is fixedly mounted on the sixth guide column (306), and a second groove (3091) is mounted on the second receiving plate (309) for receiving and placing the gas bellows.

5. A gas bellows air tightness detection device according to claim 4, characterized in that: The air intake assembly (308) comprises a first air intake plate (3081) mounted on the fifth guide column (305), a first air intake nozzle (3082) being fixedly mounted on the first air intake plate (3081), a first air delivery nozzle (3083) being mounted on the lower side of the first air intake plate (3081), and the first air intake nozzle (3082) being in communication with the first air delivery nozzle (3083); A second deflection block (310) is slidably disposed in the second sliding groove (3132), a second diamond block (311) is rotatably disposed on the second deflection block (310), second sliding grooves (312) are disposed at both ends of the second diamond block (311), and the two second sliding grooves (312) are respectively slidably matched with the two second rotating pins (307) in a one-to-one correspondence.

6. A gas bellows air tightness detection device according to claim 5, characterized in that: The fixing assembly (4) comprises a first fixing plate (401) installed between the first bottom plate (201) and the second bottom plate (301); a first slide rail (402) is installed between the first fixing plate (401) and the base (1); the first fixing plate (401) is slidably mounted on the first slide rail (402); and a first support (403) is fixedly mounted on the first fixing plate (401).

7. A gas bellows air tightness detection device according to claim 6, characterized in that: The gas source assembly (5) comprises a first air pump (501) mounted on a side wall of the base (1); a first air delivery pipe (502) is connected between the first air pump (501) and the first air delivery nozzle (3083); a first switch valve is mounted on the first air delivery pipe (502); a first pressure sensor is mounted between the first switch valve and the first air delivery nozzle (3083); a first flow sensor is mounted between the first pressure sensor and the first air delivery nozzle (3083); and the first pressure sensor and the first flow sensor are mounted on the first air delivery pipe (502).

8. A method for detecting gas bellows air tightness, using a gas bellows air tightness detection device as claimed in any one of claims 1 to 6, characterized in that ,include: Step 1: After both ends of the gas bellows are filled with gas through the first plug (2122) and the first gas inlet nozzle (3082), the first gas pump (501) is started to inflate the first gas pipe (502). When the set pressure is reached, the first gas pump (501) is turned off, the first switch valve is closed, and the pressure is maintained for a certain time t. Step 2: The gas pressure entering the gas bellows is recorded as P1, and the gas pressure in the gas bellows after maintaining the pressure for a certain period of time is recorded as P2. The volume in the gas bellows is V, and the volume of the gas entering the gas bellows is recorded as V1; Step 3: During the inflation phase, if V>V1, there is leakage in the gas bellows; Step 4: There is a certain flow fluctuation in the early stage of the pressure holding stage, so the pressure holding stage needs to be divided into a balance stage t1 and a detection stage t2, where t2 and t1 satisfy 0.8<(t2 / t1)<1; Step 5: During the detection phase, if p1>P2, there is a leak in the gas bellows; Step 6: Testing completed.

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