Sealing performance testing device for rubber sealing ring

Abstract

The invention relates to the technical field of sealing detection, and provides a sealing performance testing device for a rubber sealing ring, which comprises an air tightness detection device, the air tightness detection device comprises a base, the top of the base is fixedly connected with a fixing plate, and the top of the fixing plate is provided with a testing cylinder. A motor drives a rotating rod to rotate, so that the rotating rod drives a long plate to rotate, then the long plate drives a short rod A to perform circular motion, the short rod A drives a connecting rod to perform circular motion, the connecting rod pulls a short rod B to perform horizontal displacement, and the short rod B drives a fixing frame to perform horizontal displacement; according to the air tightness detection device, the effect of clamping the cylinder body during air tightness detection is achieved, the phenomenon that bubbles appear in the cylinder body due to vibration when the air cylinder is started is avoided, and test data are more accurate.

Description

Technical Field

[0001] The invention relates to the technical field of sealing detection, and in particular to a sealing test device for a rubber sealing ring. Background Art

[0002] The sealing test of the rubber ring mainly includes two factors: the first is the size of the fitting surface of the rubber ring after deformation under pressure, and the second is whether the rubber ring itself is damaged to cause leakage.

[0003] According to a disclosed sealing test device for a rubber sealing ring (publication number: CN212721938U), it includes water and a cylinder body, a limit frame extending at the bottom of the cylinder body, an air bag installed in the limit frame, and the cylinder body is supported to float up by inflating the air bag, or the gas in the air bag is released to make the cylinder body fall, thereby achieving convenient and quick control of the lifting and lowering of the cylinder body, thereby improving the testing efficiency of the rubber ring, wherein the limit frame stably limits the position of the air bag, thereby being able to stably support the lifting and lowering of the cylinder body. However, in the above design, it is difficult to achieve the effect of clamping the cylinder body during airtightness testing through the mutual cooperation of components such as the cylinder body and the limit frame, resulting in bubbles inside the cylinder body due to the vibration when the cylinder is started, thereby making the test data inaccurate. Therefore, we propose a sealing test device for a rubber sealing ring specifically used to prevent the vibration of the cylinder. Summary of the invention

[0004] The invention provides a sealing performance testing device for a rubber sealing ring.

[0005] The technical solution of the present invention is as follows: a sealing test device for a rubber sealing ring, comprising an airtight detection device, the airtight detection device comprising a base, a fixing plate fixedly connected to the top of the base, a test cylinder arranged on the top of the fixing plate, a top cover arranged on the top of the test cylinder, a handle fixedly connected to the top of the top cover, a cylinder arranged on one side of the base, an air pipe fixedly penetrated through the top of the cylinder, an end of the air pipe away from the cylinder fixedly penetrated through the top of the top cover, an anti-slip pad fixedly connected to the bottom of the base, and a rectangular groove opened on the top of the base; A clamping device is provided inside the airtight detection device, and the clamping device includes a motor, and the motor is fixedly connected to the inner wall of the rectangular groove, and the output shaft of the motor is fixedly connected to a rotating rod, and the end of the rotating rod away from the motor passes through a long plate and is fixedly connected to the long plate, and one end of the long plate is fixedly connected to a short rod A, and the end of the short rod A away from the long plate passes through a connecting rod and is rotatably connected to the connecting rod, and the end of the connecting rod away from the short rod A passes through a short rod B and is rotatably connected to the short rod B, the top of the base is fixedly connected to a fixing rod, the top of the fixing rod is provided with a fixing frame, the bottom of the fixing frame is provided with a sliding groove, and one side of the fixing frame is fixedly connected to a clamping plate.

[0006] The bottom of the test cylinder is in contact with the top of the fixing plate. There are four anti-skid pads, which are arranged in groups of two and are symmetrical along the vertical center axis of the base. The above design is conducive to ensuring the stability of the device during operation through the anti-skid pads.

[0007] There are two short rods A, which are symmetrical along the vertical center axis of the long board; there are two connecting rods, which are symmetrical along the vertical center axis of the base. The above design is conducive to driving the connecting rods to perform circular motion through the short rods A.

[0008] A lubrication device is provided on the outside of the airtight detection device, and the lubrication device includes a lubrication device, and the lubrication device includes a positioning plate, and the positioning plate is fixedly connected to one side of the base, and an electric telescopic rod is provided on one side of the positioning plate, and an airbag is fixedly connected to the side of the base close to the positioning plate, and a connecting pipe is fixedly penetrated through the circumferential surface of the airbag, and an end of the connecting pipe away from the airbag penetrates a support plate and is fixedly connected to the support plate, and an oil tank is fixedly connected to the top of the support plate, and the end of the connecting pipe away from the airbag is fixedly penetrated by the oil tank, and a one-way valve is provided on the end of the connecting pipe close to the oil tank, and a dropper is fixedly penetrated through the circumferential surface of the airbag, and a spring A is fixedly connected to the inner wall of the airbag. The above design is conducive to lubricating the components in the device and increasing the service life of the device.

[0009] The airbag is located on the displacement track of the electric telescopic rod away from one end of the positioning plate. The shape of the support plate is L-shaped. There are two electric telescopic rods, which are symmetrical to each other along the vertical center axis of the positioning plate. The above design is conducive to positioning the oil tank through the L-shaped support plate.

[0010] The shape of the dropper is L-shaped, the connecting rod is located at the opening of the dropper, the number of the air bags is two, and they are symmetrical to each other along the vertical center axis of the base. The above design is conducive to dripping oil onto the connecting rod through the L-shaped dropper.

[0011] A drainage device is provided on the outside of the airtight detection device, and the drainage device includes a drainage pipe, one end of the drainage pipe is fixedly passed through the test cylinder, and the end of the drainage pipe close to the test cylinder is fixedly sleeved with a protective sleeve, a positioning rod is passed through the circumferential surface of the protective sleeve and is rotatably connected to the protective sleeve, an end of the positioning rod away from the protective sleeve is fixedly connected with a switch, an end of the positioning rod close to the protective sleeve is fixedly connected with a screw rod, an end of the screw rod away from the positioning rod passes through the drainage pipe and is rotatably connected to the drainage pipe, a baffle is fixedly connected on the circumferential surface of the screw rod, an end of the positioning rod away from the protective sleeve passes through a gear and is fixedly connected to the gear, a slider is slidably connected to the top of the fixed plate, one side of the slider is fixedly connected with teeth, a fixed block is fixedly connected to the top of the fixed plate, one side of the fixed block is fixedly connected with a spring B, and an end of the spring B away from the fixed block is fixedly connected to a side of the slider away from the teeth. The above design is conducive to discharging the liquid in the test cylinder.

[0012] There are two baffles, which are symmetrical to each other along the vertical center axis of the screw rod. The baffles are located inside the drain pipe. The above design is conducive to controlling the outflow of liquid in the drain pipe through the two baffles.

[0013] The gear is located on the displacement track of the teeth, the teeth are meshed with the gear, and the shape of the slider is L-shaped. The above design is conducive to the teeth restricting the gear from rotating through the mutual contact between the teeth and the gear.

[0014] The shape of the clamping plate is arc-shaped, and there are two clamping plates, which are symmetrical to each other along the vertical center axis of the base. The shape of the fixing frame is L-shaped, and the top of the fixing rod is slidably connected to the inner wall of the slide groove. The above design is conducive to clamping the test cylinder through two arc-shaped clamping plates.

[0015] The working principle and beneficial effects of the present invention are: 1. The present invention realizes the rotation of the rotating rod driven by the motor by cooperating with the long plate, the short rod A and the connecting rod and other components, so that the rotating rod is driven by the motor to rotate, so that the rotating rod drives the long plate to rotate, and then the long plate drives the short rod A to perform circular motion, so that the short rod A drives the connecting rod to perform circular motion, and then the connecting rod pulls the short rod B to move horizontally, so that the short rod B drives the fixed frame to move horizontally, and then the fixed frame drives the clamping plate to move horizontally, so as to achieve the effect of clamping the cylinder body during airtightness detection, avoid the appearance of bubbles inside the cylinder body due to vibration when the cylinder is started, and make the test data more accurate.

[0016] 2. The present invention realizes that the thrust of the electric telescopic rod cooperates with the positioning plate, the airbag, the support plate and other components to push the airbag through the electric telescopic rod, so that the airbag is forced to shrink. When the electric telescopic rod is away from the airbag, the airbag is re-inflated by the tension of the internal spring A, so that the airbag absorbs the oil in the oil tank into the inside of the airbag through the connecting pipe. When the electric telescopic rod squeezes the airbag again, the airbag sprays the oil inside the airbag onto the connecting rod through the dropper, thereby achieving the effect of lubricating the parts in the device and increasing the service life of the device.

[0017] 3. The present invention cooperates with components such as the drain pipe, the protective cover and the positioning rod through the force of the rotating switch, thereby achieving the effect of pushing the slider to drive the teeth to move horizontally, thereby moving the teeth away from the gears, and then rotating the switch to drive the positioning rod to rotate, and then the positioning rod drives the screw rod to rotate, so that the screw rod drives the baffle to rotate, and the circumferential surface of the baffle is away from the inner wall of the drain pipe, thereby achieving the effect of discharging the liquid inside the test cylinder from the drain pipe.

[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] Figure 1 It is a schematic diagram of the three-dimensional appearance structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the base of the present invention when viewed from above; Figure 3 It is a schematic diagram of a three-dimensional structure of a cross-section of a fixing plate of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the base of the present invention from a rear view; Figure 5 It is a schematic diagram of a three-dimensional structure of the airbag of the present invention in cross section; Figure 6 It is a schematic diagram of the three-dimensional structure of the drainage pipe of the present invention; Figure 7 For the present invention Figure 6 A three-dimensional enlarged image of center A; Figure 8 For the present invention Figure 4 Three-dimensional enlarged image of B.

[0021] In the figure: 1, airtightness detection device; 101, base; 102, fixing plate; 103, test cylinder; 104, top cover; 105, handle; 106, cylinder; 107, air pipe; 108, anti-slip pad; 109, rectangular groove; 2. Clamping device; 201. Motor; 202. Rotating rod; 203. Long board; 204. Short rod A; 205. Connecting rod; 206. Short rod B; 207. Fixed frame; 208. Clamping plate; 209. Sliding groove; 210. Fixed rod; 3. Lubricating device; 301. Positioning plate; 302. Electric telescopic rod; 303. Air bag; 304. Support plate; 305. Connecting pipe; 306. Oil tank; 307. One-way valve; 308. Dropper; 309. Spring A; 4. Drainage device; 401. Drain pipe; 402. Protective cover; 403. Positioning rod; 404. Switch; 405. Screw; 406. Baffle; 407. Gear; 408. Sliding block; 409. Tooth; 410. Fixed block; 411. Spring B. DETAILED DESCRIPTION

[0022] The following will be combined with 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.

[0023] Example 1 like Figure 1 to Figure 3 As shown, this embodiment proposes a sealing test device for a rubber sealing ring, including an airtight detection device 1, the airtight detection device 1 includes a base 101, a fixing plate 102 is fixedly connected to the top of the base 101, a test cylinder 103 is arranged on the top of the fixing plate 102, a top cover 104 is arranged on the top of the test cylinder 103, a handle 105 is fixedly connected to the top of the top cover 104, a cylinder 106 is arranged on one side of the base 101, an air pipe 107 is fixedly passed through the top of the cylinder 106, one end of the air pipe 107 away from the cylinder 106 is fixedly passed through the top of the top cover 104, an anti-slip pad 108 is fixedly connected to the bottom of the base 101, and a rectangular groove 109 is opened on the top of the base 101; A clamping device 2 is arranged inside the airtight detection device 1, and the clamping device 2 includes a motor 201, which is fixedly connected to the inner wall of the rectangular groove 109, and the output shaft of the motor 201 is fixedly connected to a rotating rod 202, and the end of the rotating rod 202 away from the motor 201 passes through a long plate 203 and is fixedly connected to the long plate 203, and one end of the long plate 203 is fixedly connected to a short rod A204, and the end of the short rod A204 away from the long plate 203 passes through a connecting rod 205 and is rotatably connected to the connecting rod 205, and the end of the connecting rod 205 away from the short rod A204 passes through a short rod B206 and is rotatably connected to the short rod B206, and a fixed rod 210 is fixedly connected to the top of the base 101, a fixed frame 207 is arranged on the top of the fixed rod 210, a slide groove 209 is arranged at the bottom of the fixed frame 207, and a clamping plate 208 is fixedly connected to one side of the fixed frame 207.

[0024] The bottom of the test cylinder 103 is in contact with the top of the fixing plate 102 . There are four anti-skid pads 108 , which are arranged in groups of two and are symmetrical along the vertical center axis of the base 101 . The above design is conducive to ensuring the stability of the device during operation through the anti-skid pads 108 .

[0025] There are two short rods A204, which are symmetrical along the vertical center axis of the long plate 203. There are two connecting rods 205, which are symmetrical along the vertical center axis of the base 101. The above design is conducive to driving the connecting rod 205 to perform circular motion through the short rod A204.

[0026] In this embodiment, the present application drives the rotating rod 202 to rotate through the motor 201, so that the rotating rod 202 drives the long plate 203 to rotate, and then the long plate 203 drives the short rod A204 to perform circular motion, so that the short rod A204 drives the connecting rod 205 to perform circular motion, and then the connecting rod 205 pulls the short rod B206 to move horizontally, so that the short rod B206 drives the fixing frame 207 to move horizontally, and then the fixing frame 207 drives the clamping plate 208 to move horizontally, thereby achieving the effect of clamping the cylinder body during the airtightness test, avoiding the appearance of bubbles inside the cylinder body due to the vibration when the cylinder 106 is started, and making the test data more accurate.

[0027] Example 2 like Figure 4-5 As shown, based on the same concept as the above-mentioned embodiment 1, this embodiment also proposes a second embodiment, a sealing test device for a rubber sealing ring, comprising an airtight detection device 1, a lubricating device 3 is arranged outside the airtight detection device 1, the lubricating device 3 comprises a lubricating device 3, the lubricating device 3 comprises a positioning plate 301, the positioning plate 301 is fixedly connected to one side of the base 101, an electric telescopic rod 302 is arranged on one side of the positioning plate 301, an airbag 303 is fixedly connected to one side of the base 101 close to the positioning plate 301, and a fixed penetrating rod 302 is arranged on the circumferential surface of the airbag 303. There is a connecting pipe 305, the end of the connecting pipe 305 away from the airbag 303 passes through the support plate 304 and is fixedly connected to the support plate 304, the top of the support plate 304 is fixedly connected to an oil tank 306, the end of the connecting pipe 305 away from the airbag 303 is fixedly passed through the oil tank 306, a one-way valve 307 is provided on the end of the connecting pipe 305 close to the oil tank 306, a dropper 308 is fixedly passed through the circumferential surface of the airbag 303, and a spring A309 is fixedly connected to the inner wall of the airbag 303. The above design is conducive to lubricating the components in the device and increasing the service life of the device.

[0028] The airbag 303 is located on the displacement trajectory of the electric telescopic rod 302 away from one end of the positioning plate 301. The shape of the support plate 304 is L-shaped. There are two electric telescopic rods 302, and they are symmetrical to each other along the vertical center axis of the positioning plate 301. The above design is conducive to positioning the oil tank 306 through the L-shaped support plate 304.

[0029] The shape of the dropper 308 is L-shaped, and the connecting rod 205 is located at the opening of the dropper 308. There are two airbags 303, which are symmetrical to each other along the vertical center axis of the base 101. The above design is conducive to dripping oil onto the connecting rod 205 through the L-shaped dropper 308.

[0030] In this embodiment, the electric telescopic rod 302 pushes the airbag 303, so that the airbag 303 is forced to shrink. When the electric telescopic rod 302 moves away from the airbag 303, the airbag 303 expands again through the tension of the internal spring A309, so that the airbag 303 absorbs the oil in the oil tank 306 into the inside of the airbag 303 through the connecting pipe 305. When the electric telescopic rod 302 squeezes the airbag 303 again, the airbag 303 sprays the oil inside the airbag 303 onto the connecting rod 205 through the dropper 308, thereby achieving the effect of lubricating the parts in the device and increasing the service life of the device.

[0031] Example 3 like Figure 6 to Figure 8 As shown, based on the same concept as the above-mentioned embodiment 1, this embodiment also proposes a second embodiment, a sealing test device for a rubber sealing ring, comprising an airtight detection device 1, a drainage device 4 is arranged outside the airtight detection device 1, the drainage device 4 comprises a drainage pipe 401, one end of the drainage pipe 401 is fixedly penetrated through the test cylinder 103, and the end of the drainage pipe 401 close to the test cylinder 103 is fixedly sleeved with a protective sleeve 402, a positioning rod 403 is penetrated on the circumferential surface of the protective sleeve 402, and is rotatably connected to the protective sleeve 402, the end of the positioning rod 403 away from the protective sleeve 402 is fixedly connected to a switch 404, the end of the positioning rod 403 close to the protective sleeve 402 is fixedly connected to a screw rod 405, and the screw rod 406 is fixedly connected to the protective sleeve 406. 05 The end away from the positioning rod 403 passes through the drain pipe 401 and is rotatably connected to the drain pipe 401. A baffle 406 is fixedly connected to the circumferential surface of the screw rod 405. The end of the positioning rod 403 away from the protective sleeve 402 passes through a gear 407 and is fixedly connected to the gear 407. A slider 408 is slidably connected to the top of the fixed plate 102, and one side of the slider 408 is fixedly connected to a tooth 409. A fixed block 410 is fixedly connected to the top of the fixed plate 102, and one side of the fixed block 410 is fixedly connected to a spring B411. The end of the spring B411 away from the fixed block 410 is fixedly connected to the side of the slider 410 away from the tooth 409. The above design is conducive to discharging the liquid in the test cylinder 103.

[0032] There are two baffles 406 , which are symmetrical to each other along the vertical center axis of the screw rod 405 . The baffles 406 are located inside the drain pipe 401 . The above design is conducive to controlling the outflow of liquid in the drain pipe 401 through the two baffles 406 .

[0033] The gear 407 is located on the displacement track of the tooth 409, the tooth 409 and the gear 407 are meshed with each other, and the shape of the slider 408 is L-shaped. The above design is conducive to the tooth 409 limiting the rotation of the gear 407 through the mutual contact between the tooth 409 and the gear 407.

[0034] The shape of the clamping plate 208 is arc-shaped, and there are two clamping plates 208, which are symmetrical to each other along the vertical center axis of the base 101. The shape of the fixing frame 207 is L-shaped, and the top of the fixing rod 210 is slidingly connected to the inner wall of the slide groove 209. The above design is conducive to clamping the test cylinder 103 through the two arc-shaped clamping plates 208.

[0035] In this embodiment, by pushing the slider 408, the slider 408 drives the teeth 409 to move horizontally, thereby moving the teeth 409 away from the gear 407, and then turning the switch 404, so that the switch 404 drives the positioning rod 403 to rotate, and then the positioning rod 403 drives the screw rod 405 to rotate, so that the screw rod 405 drives the baffle 406 to rotate, and the circumferential surface of the baffle 406 is away from the inner wall of the drain pipe 401, thereby achieving the effect of discharging the liquid inside the test cylinder 103 from the drain pipe 401.

[0036] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sealing test device for a rubber sealing ring, characterized in that: The airtightness detection device (1) comprises a base (101), the top of the base (101) is fixedly connected to a fixing plate (102), the top of the fixing plate (102) is provided with a test cylinder (103), the top of the test cylinder (103) is provided with a top cover (104), the top of the top cover (104) is fixedly connected to a handle (105), a cylinder (106) is provided on one side of the base (101), an air pipe (107) is fixedly passed through the top of the cylinder (106), one end of the air pipe (107) away from the cylinder (106) is fixedly passed through the top of the top cover (104), an anti-slip pad (108) is fixedly connected to the bottom of the base (101), and a rectangular groove (109) is provided on the top of the base (101); The airtightness detection device (1) is provided with a clamping device (2) therein, the clamping device (2) comprising a motor (201), the motor (201) being fixedly connected to the inner wall of the rectangular groove (109), the output shaft of the motor (201) being fixedly connected to a rotating rod (202), the end of the rotating rod (202) away from the motor (201) being penetrated by a long plate (203) and being fixedly connected to the long plate (203), the end of the long plate (203) being fixedly connected to a short rod A (204), the short rod A (204) being away from the long plate ( A connecting rod (205) is passed through one end of the base (101) and is rotatably connected to the connecting rod (205); a short rod B (206) is passed through one end of the connecting rod (205) away from the short rod A (204) and is rotatably connected to the short rod B (206); a fixing rod (210) is fixedly connected to the top of the base (101); a fixing frame (207) is provided at the top of the fixing rod (210); a sliding groove (209) is provided at the bottom of the fixing frame (207); and a clamping plate (208) is fixedly connected to one side of the fixing frame (207).

2. A sealing test device for a rubber sealing ring according to claim 1, characterized in that: The bottom of the test cylinder (103) and the top of the fixing plate (102) are in contact with each other, and the number of the anti-slip pads (108) is four, arranged in groups of two, and symmetrical with each other along the vertical center axis of the base (101).

3. A sealing test device for a rubber sealing ring according to claim 2, characterized in that: The number of the short rods A (204) is two, and they are symmetrical to each other along the vertical center axis of the long plate (203); the number of the connecting rods (205) is two, and they are symmetrical to each other along the vertical center axis of the base (101).

4. A sealing test device for a rubber sealing ring according to claim 3, characterized in that: The airtightness detection device (1) is provided with a lubricating device (3) on the outside, the lubricating device (3) comprising a lubricating device (3), the lubricating device (3) comprising a positioning plate (301), the positioning plate (301) being fixedly connected to one side of the base (101), an electric telescopic rod (302) being provided on one side of the positioning plate (301), an air bag (303) being fixedly connected to one side of the base (101) close to the positioning plate (301), a connecting pipe (305) being fixedly passed through the circumferential surface of the air bag (303), the connecting pipe (305) The end of the connecting pipe (305) away from the airbag (303) is penetrated by a support plate (304) and is fixedly connected to the support plate (304); the top of the support plate (304) is fixedly connected to an oil tank (306); the end of the connecting pipe (305) away from the airbag (303) is fixedly penetrated by the oil tank (306); the end of the connecting pipe (305) close to the oil tank (306) is provided with a one-way valve (307); a dropper (308) is fixedly penetrated on the circumferential surface of the airbag (303); and a spring A (309) is fixedly connected to the inner wall of the airbag (303).

5. A sealing test device for a rubber sealing ring according to claim 4, characterized in that: The airbag (303) is located on a displacement track of one end of the electric telescopic rod (302) away from the positioning plate (301), the support plate (304) is L-shaped, and there are two electric telescopic rods (302) which are symmetrical to each other along the vertical center axis of the positioning plate (301).

6. A sealing test device for a rubber sealing ring according to claim 5, characterized in that: The shape of the dropper (308) is L-shaped, the connecting rod (205) is located at the opening of the dropper (308), and the number of the air bags (303) is two, and they are symmetrical to each other along the vertical center axis of the base (101).

7. A sealing test device for a rubber sealing ring according to claim 6, characterized in that: The airtightness detection device (1) is provided with a drainage device (4) on the outside. The drainage device (4) comprises a drainage pipe (401). One end of the drainage pipe (401) is fixedly connected to the test cylinder (103). One end of the drainage pipe (401) close to the test cylinder (103) is fixedly sleeved with a protective sleeve (402). A positioning rod (403) is penetrated through the circumferential surface of the protective sleeve (402) and is rotatably connected to the protective sleeve (402). One end of the positioning rod (403) away from the protective sleeve (402) is fixedly connected to a switch (404). One end of the positioning rod (403) close to the protective sleeve (402) is fixedly connected to a screw rod (405). One end of the screw rod (405) away from the positioning rod (403) is penetrated through the drainage pipe (401). The water pipe (401) is rotatably connected to the drain pipe (401); a baffle (406) is fixedly connected to the circumferential surface of the screw rod (405); a gear (407) is passed through the end of the positioning rod (403) away from the protective sleeve (402) and is fixedly connected to the gear (407); a slider (408) is slidably connected to the top of the fixing plate (102); one side of the slider (408) is fixedly connected to teeth (409); a fixing block (410) is fixedly connected to the top of the fixing plate (102); one side of the fixing block (410) is fixedly connected to a spring B (411); one end of the spring B (411) away from the fixing block (410) is fixedly connected to a side of the slider (410) away from the teeth (409).

8. A sealing test device for a rubber sealing ring according to claim 7, characterized in that: There are two baffles (406) which are symmetrical to each other along the vertical center axis of the screw rod (405), and the baffles (406) are located inside the drainage pipe (401).

9. A sealing test device for a rubber sealing ring according to claim 7, characterized in that: The gear (407) is located on the displacement track of the teeth (409), the teeth (409) and the gear (407) are meshed with each other, and the shape of the slider (408) is L-shaped.

10. A sealing test device for a rubber sealing ring according to claim 7, characterized in that: The clamping plate (208) is in an arc shape, there are two clamping plates (208) and they are symmetrical along the vertical center axis of the base (101), the fixing frame (207) is in an L shape, and the top of the fixing rod (210) is slidably connected to the inner wall of the sliding groove (209).

Images