CN112834125A - Pressure sensor sealing ring air tightness detection device and detection method - Google Patents
Pressure sensor sealing ring air tightness detection device and detection method Download PDFInfo
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- CN112834125A CN112834125A CN202011632895.2A CN202011632895A CN112834125A CN 112834125 A CN112834125 A CN 112834125A CN 202011632895 A CN202011632895 A CN 202011632895A CN 112834125 A CN112834125 A CN 112834125A
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- sealing ring
- fixedly connected
- fixing plate
- hole
- pipeline
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/06—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing bubbles in a liquid pool
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/005—Sealing rings
Abstract
The invention discloses a device and a method for detecting the air tightness of a pressure sensor sealing ring, which comprises a bottom plate, water and a sealing ring, and further comprises a box body, a sliding rod, a connecting ball, a rotating shaft I, a connecting plate, a fixed plate I, a fixed column, a pipeline I, a fixed plate II, a pressing block and a pipeline II, wherein the surface of the sliding rod is sleeved with a rotating block, the fixed plate I is internally provided with a flow channel I, the fixed column I is internally provided with a through hole I, the fixed plate II is internally provided with a flow channel II, and the pressing block is internally provided with a through hole II. The problem of accuracy of detection is reduced.
Description
Technical Field
The invention relates to the technical field of sealing performance detection, in particular to a device and a method for detecting the air tightness of a sealing ring of a pressure sensor.
Background
The general pressure sensor is in a threaded mounting mode, and then a sealing rubber ring is matched, so that the sealing purpose is achieved, and the measured fluid cannot cause pressure change due to leakage, and the measuring result is inaccurate.
The sealing performance of the sealing gasket determines the service life and the use performance of the sealing ring, the existing sealing ring air tightness detection equipment cannot well detect the air tightness of the sealing ring, and in the process of detection, the connection between the guide pipes is easy to loosen, so that whether the air tightness is good or not can not be obviously observed, the air tightness cannot be well detected, and the detection accuracy is reduced.
Disclosure of Invention
The invention aims to provide a device and a method for detecting the air tightness of a pressure sensor sealing ring, which have the effects of detecting the air tightness of the sealing ring and conveniently observing the detection result, and solve the problems that the existing sealing ring air tightness detection equipment cannot well detect the air tightness of the sealing ring, the connection between guide pipes is easy to loosen in the re-detection process, whether the air tightness is good or not can not be obviously observed, so that the air tightness detection cannot be well detected, and the detection accuracy is reduced.
In order to achieve the purpose, the invention provides the following technical scheme: a pressure sensor sealing ring air tightness detection device comprises a bottom plate, water and a sealing ring, and further comprises a box body, a sliding rod, a connecting ball, a first rotating shaft, a connecting plate, a first fixing column, a first pipeline, a second fixing plate, a pressing block and a second pipeline, wherein a rotating block is sleeved on the surface of the sliding rod, the first fixing plate is internally provided with a first flow channel, the surface of the fixing column is provided with a first through hole, the second fixing plate is internally provided with a second flow channel, the surface of the pressing block is provided with a second through hole, the box body is fixedly connected to the upper surface of the bottom plate, the end part of the sliding rod is fixedly connected with the surface of the connecting ball, the first rotating shaft is rotatably connected to the surface of the connecting ball, the connecting plate is fixedly connected to the surface of the first rotating shaft, the right side of the connecting, the first flow channel is fixedly communicated with the first through hole, one end of the second pipeline is fixedly connected with the upper surface of the second fixing plate, the pressing block is fixedly connected to the left side of the second fixing plate, the second pipeline is fixedly communicated with the second flow channel, the second flow channel is fixedly communicated with the second through hole, and the supporting column is fixedly connected to the upper surface of the bottom plate; the surface of the box body is provided with a driving mechanism for driving the rotating block to rotate; the reset mechanism is used for resetting the position of the connecting ball; the inner wall of the box body is also provided with a limiting mechanism for limiting the motion trail of the connecting ball; and a linkage mechanism for linking the movement of the second fixing plate is further arranged on the right side of the first fixing plate.
Preferably, the driving mechanism comprises a motor, a fourth through hole is formed in the surface of the box body, a driving shaft of the motor penetrates through the fourth through hole and is fixedly connected with the back of the rotating block, and the motor is fixedly connected with the back of the box body.
Preferably, the return mechanism comprises a spring, one end of the spring is fixedly connected with the surface of the connecting ball, and the other end of the spring is fixedly connected with the upper surface of the rotating block.
Preferably, the limiting mechanism comprises a baffle, and the left side of the baffle is fixedly connected with the inner wall of the box body.
Preferably, the device further comprises a first pipeline, and the lower surface of the first pipeline is fixedly communicated with the upper surface of the first flow channel.
Preferably, the linkage mechanism comprises a linkage rod, a fifth through hole is formed in the surface of the second fixing plate, the linkage rod penetrates through the inner wall of the fifth through hole and is connected to the inner wall of the fifth through hole in a sliding mode, and the left side of the linkage rod is fixedly connected with the right side of the first fixing plate.
Preferably, still include check valve one, check valve two, a piston cylinder, piston and support column, through-hole three has been seted up to the bottom of a piston cylinder, the support column passes and sliding connection is in the inner wall of through-hole three, the lower surface of piston with the last fixed surface of support column is connected, the left side of check valve one with the fixed intercommunication of the other end of pipeline two, the right side of check valve one with the fixed intercommunication in left side of a piston cylinder, the left side of check valve two with the fixed intercommunication in right side of a piston cylinder.
Preferably, the piston further comprises a second spring, one end of the second spring is fixedly connected with the lower surface of the piston cylinder, and the other end of the second spring is fixedly connected with the upper surface of the bottom plate.
The invention provides the following detection method: a detection method of a pressure sensor sealing ring airtightness detection device comprises the following steps:
s1: sleeving a sealing ring to be detected on the fixing column;
s2: the driving mechanism is started to drive the pressing block and the fixing plate to butt against and fix the sealing ring, and then the sealing ring can be automatically descended into water;
s3: and in the process that the sealing ring is lowered into the water, the second pipeline is inflated, and then whether bubbles are generated in the water is observed.
Compared with the prior art, the invention has the following beneficial effects:
firstly, the invention adds water into a box body, a sealing ring to be detected is sleeved on a fixed column specially used for fixing the sealing ring, after the fixing is finished, a driving shaft of the motor is driven to rotate in a positive direction by starting the motor, a rotating block is driven to rotate clockwise by the positive rotation of the driving shaft of the motor, a sliding rod is driven to rotate along with the rotating block by the clockwise rotation of the rotating block, a connecting ball is driven to rotate by the rotation of the sliding rod, the connecting ball is limited by a baffle plate, so that a spring in a compression state gradually becomes a free state, the connecting ball moves transversely along the lower surface of the baffle plate to a position shown in figure 2, the connecting plate is driven to transversely move towards the right side by the movement of the connecting plate, the fixing plate is driven to transversely move towards the right side by the movement of the fixing plate, the sealing ring is driven to transversely move towards the right side to the surface, when the sealing washer is suppressed to the briquetting, the briquetting carries out the butt to the sealing washer, make the inside of sealing washer be in the cavity state, water in the box can not enter into the cavity, continue through the motor and rotate, can drive the sealing washer by the motion of figure 2 to the position shown in figure 3, if when testing different specification sealing washers, when the thickness of sealing washer is thick, when the surface contact of sealing washer reaches the briquetting, because connect the ball only by the upward movement of baffle restriction, through the rotation of motor, also can drive the sealing washer and move down, can realize testing the gas tightness to the sealing washer of different thickness specifications, through with the sealing washer submergence in aqueous, alright observe whether the sealing washer shows the bubble, it is good that the positive gas tightness is then not appeared to appear the bubble, the bubble then proves that the sealing washer is the was.
Secondly, the invention drives the linkage rod to move downwards through the downward movement of the first fixing plate, drives the second fixing plate to move downwards through the downward movement of the linkage rod, drives the second pipeline to move downwards through the downward movement of the second pipeline, drives the one-way valve to move downwards through the downward movement of the second pipeline, drives the piston cylinder to move downwards through the downward movement of the one-way valve, drives the air in the piston cylinder to be extruded into the second pipeline under the action of the piston so as to enter the second flow passage and then enter the second through hole, the air in the second through hole can not flow back under the action of the first one-way valve, and the size of the second through hole is much larger than that of the first through hole, so that enough air can impact the surface of the sealing ring, the air can not generate bubbles in water through the impact of the air on the sealing ring, if the air tightness of the sealing ring is good, the air can completely pass through the first through, if the air tightness of the sealing ring is poor, bubbles can be obviously observed to emerge from the surface of the sealing ring in water, and the front sealing ring is poor in air tightness and is a defective product.
After the air tightness of the sealing ring is tested, the driving shaft of the driving motor rotates reversely to drive the mechanism to move reversely, the mechanism is driven to move from the position shown in the figure 3 to the position shown in the figure 2 through the reverse movement of the mechanism, the second fixing plate is driven to move upwards through the upward movement of the linkage rod, the second pipeline is driven to move upwards through the upward movement of the second pipeline, the first check valve is driven to move upwards through the upward movement of the first check valve, the piston cylinder is driven to move upwards, and under the action of the piston, air outside the piston cylinder is supplemented into the piston cylinder through the second check valve, so that the effect of re-inflating the interior of the piston cylinder can be realized.
Drawings
FIG. 1 is a first state diagram of the structure of the present invention and is taken as a front view;
FIG. 2 is a second state elevational view of the structure of the present invention;
FIG. 3 is a third state elevational view of the structure of the present invention;
FIG. 4 is a front view of the structure of the present invention;
fig. 5 is a rear view of the inventive structure.
In the figure: 1-bottom plate, 2-box, 3-water, 4-motor, 5-slide bar, 6-turning block, 7-spring I, 8-connecting ball, 9-rotating shaft I, 10-connecting plate, 11-baffle, 12-fixing plate I, 13-fixing column, 14-sealing ring, 15-runner I, 16-through hole I, 17-pipeline I, 18-linkage rod, 19-fixing plate III, 20-runner II, 21-pressing block, 22-through hole II, 23-pipeline II, 24-supporting column, 25-spring II, 26-piston cylinder, 27-piston, 28-one-way valve I and 29-one-way valve II.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 5, the present invention provides a technical solution: a pressure sensor sealing ring airtightness detection device comprises a bottom plate 1, water 3 and a sealing ring 14, and further comprises a box body 2, a sliding rod 5, a connecting ball 8, a first rotating shaft 9, a connecting plate 10, a first fixing plate 12, a first fixing column 13, a first pipeline 17, a second fixing plate 19, a pressing block 21 and a second pipeline 23, wherein a rotating block 6 is sleeved on the surface of the sliding rod 5, a first flow channel 15 is formed inside the first fixing plate 12, a first through hole 16 is formed in the surface of the fixing column 13, a second flow channel 20 is formed inside the second fixing plate 19, a second through hole 22 is formed in the surface of the pressing block 21, the box body 2 is fixedly connected to the upper surface of the bottom plate 1, the end of the sliding rod 5 is fixedly connected with the surface of the connecting ball 8, the first rotating shaft 9 is rotatably connected to the surface of the connecting ball 8, and the connecting plate 10, the right side of the connecting plate 10 is fixedly connected with the left side of the first fixing plate 12, the fixing column 13 is fixedly connected with the right side of the first fixing plate 12, the first flow channel 15 is fixedly communicated with the first through hole 16, one end of the second pipeline 23 is fixedly connected with the upper surface of the second fixing plate 19, the pressing block 21 is fixedly connected with the left side of the second fixing plate 19, the second pipeline 23 is fixedly communicated with the second flow channel 20, the second flow channel 20 is fixedly communicated with the second through hole 22, and the supporting column 24 is fixedly connected with the upper surface of the bottom plate 1; the surface of the box body 2 is provided with a driving mechanism for driving the rotating block 6 to rotate; the device also comprises a reset mechanism for resetting the position of the connecting ball 8; the inner wall of the box body 2 is also provided with a limiting mechanism for limiting the motion trail of the connecting ball 8; the right side of the first fixing plate 12 is also provided with a linkage mechanism for linking the movement of the second fixing plate 19, a sealing ring 14 to be detected is sleeved on a fixing column 13 specially used for fixing the sealing ring 14 by adding water 3 into the box body 2, after the fixing is finished, a driving shaft of the driving mechanism is driven to rotate in the forward direction by starting the driving mechanism, the rotating block 6 is driven to rotate clockwise by the forward rotation of the driving shaft of the driving mechanism, the sliding rod 5 is driven to rotate along with the rotating block 6 by the clockwise rotation of the rotating block 6, the connecting ball 8 is driven to rotate by the rotation of the sliding rod 5, the resetting mechanism in a compression state at the moment is gradually changed into a free state by the limitation of the limiting mechanism on the connecting ball 8, the connecting ball 8 moves transversely along the lower surface of the limiting mechanism to move to the position shown in figure 2 and moves through the connecting ball 8, the connecting plate 10 is driven to transversely move towards the right side, the fixing plate I12 is driven to transversely move towards the right side through the movement of the connecting plate I10, the sealing ring 14 is driven to transversely move towards the right side to the surface of the pressing block 21 through the movement of the fixing plate I12, when the pressing block 21 presses the sealing ring 14, the pressing block 21 abuts against the sealing ring 14, the inner part of the sealing ring 14 is in a cavity state, water 3 in the box body 2 cannot enter the cavity, the sealing ring 14 can be driven to move from the position shown in the figure 2 to the position shown in the figure 3 through the continuous rotation of the driving mechanism, if the thickness of the sealing ring 14 is thick when the surface of the sealing ring 14 contacts the pressing block 21 when the connecting ball 8 is limited to move upwards by the limiting mechanism, and the sealing ring 14 can also be driven to downwards move through the rotation of the driving mechanism, so that the airtightness test of the sealing rings, by immersing the seal ring 14 in the water 3, it is possible to observe whether the seal ring 14 indicates the presence of bubbles, the front face is good in airtightness if no bubbles are present, and the presence of bubbles proves that the seal ring 14 is a defective product.
The driving mechanism is driven to move from the position shown in fig. 2 to the position shown in fig. 1 by the reverse movement of the driving shaft of the driving mechanism, a working cycle is completed at this time, the driving mechanism is closed, the detected sealing ring 14 can be taken down, and the next sealing ring 14 to be tested is replaced to carry out the test work of repeating the steps.
Further, actuating mechanism includes motor 4, through-hole four has been seted up on the surface of box 2, the drive shaft of motor 4 passes through-hole four, and with the back fixed connection of turning block 6, motor 4 fixed connection be in the back of box 2 is after the fixed work to sealing washer 14 is accomplished, through starter motor 4, drives the drive shaft rotation of motor 4, and rotation through the drive shaft of motor 4 can drive turning block 6 and rotate.
Further, the reset mechanism comprises a spring 7, one end of the spring 7 is fixedly connected with the surface of the connecting ball 8, the other end of the spring 7 is fixedly connected with the upper surface of the rotating block 6, and the sliding rod 5 on the surface of the connecting ball 8 can extend out and retract under the action of the spring 7 on the connecting ball 8 and the rotating block 6.
Furthermore, the limiting mechanism comprises a baffle 11, the left side of the baffle 11 is fixedly connected with the inner wall of the box body 2, the connecting ball 8 is limited by the baffle 11, so that the spring I7 in a compressed state gradually becomes a free state, the connecting ball 8 transversely moves along the lower surface of the baffle 11 and moves to the position shown in fig. 2, and the connecting plate 10 can be driven to transversely move towards the right side through the movement of the connecting ball 8.
Further, the water purifier further comprises a first pipeline 17, the lower surface of the first pipeline 17 is fixedly communicated with the upper surface of the first flow channel 15, and the first pipeline 17 is fixedly communicated with the surface of the first flow channel 15, so that when the first fixing plate 12 is immersed in the water 3, the water 3 cannot enter from the first flow channel 15.
Furthermore, the linkage mechanism comprises a linkage rod 18, a fifth through hole is formed in the surface of the second fixing plate 19, the linkage rod 18 penetrates through and is connected to the inner wall of the fifth through hole in a sliding mode, the left side of the linkage rod 18 is fixedly connected with the right side of the first fixing plate 12, the linkage rod 18 is driven to move downwards through downward movement of the first fixing plate 12, and the second fixing plate 19 can be driven to move downwards through downward movement of the linkage rod 18.
Further, the device comprises a first check valve 28, a second check valve 29, a piston cylinder 26, a piston 27 and a support column 24, wherein a third through hole is formed in the bottom of the piston cylinder 26, the support column 24 penetrates through and is slidably connected to the inner wall of the third through hole, the lower surface of the piston 27 is fixedly connected with the upper surface of the support column 24, the left side of the first check valve 28 is fixedly communicated with the other end of the second pipeline 23, the right side of the first check valve 28 is fixedly communicated with the left side of the piston cylinder 26, the left side of the second check valve 29 is fixedly communicated with the right side of the piston cylinder 26, the linkage rod 18 is driven to move downwards by downward movement of the first fixing plate 12, the second fixing plate 19 is driven to move downwards by downward movement of the linkage rod 18, the second pipeline 23 is driven to move downwards by downward movement of the second fixing plate 19, the check valve 28 is driven to move downwards by downward movement of the second pipeline 23, the piston cylinder 26 is driven to move downwards, the air in the piston cylinder 26 is driven to be squeezed into the second pipeline 23 under the action of the piston 27 through the downward movement of the piston cylinder 26, then the air enters the second flow channel 20 and then enters the second through hole 22, the air in the second through hole 22 cannot flow back under the action of the first check valve 28, the size of the second through hole 22 is much larger than that of the first through hole 16, enough air impacts the surface of the sealing ring 14, air impacts the sealing ring 14, if the air tightness of the sealing ring 14 is good, air bubbles cannot be generated in the water 3, the air completely passes through the first through hole 16, passes through the first flow channel 15 and is discharged through the first pipeline 17, if the air tightness of the sealing ring 14 is poor, the air bubbles can be obviously observed to emerge from the surface of the sealing ring 14 in the water 3, and the air tightness of the front sealing ring 14 is poor and is defective.
Further, the piston type air conditioner further comprises a second spring 25, one end of the second spring 25 is fixedly connected with the lower surface of the piston cylinder 26, the other end of the second spring 25 is fixedly connected with the upper surface of the bottom plate 1, the second spring 25 is driven to be in a compression state from stretching through the up-and-down movement of the piston cylinder 26, and under the characteristic of the elasticity of the second spring 25, the second spring can support the piston cylinder 26 and help the piston cylinder 26 to achieve the effect of up-and-down movement.
Referring to fig. 1 to 5, the present invention provides a detection method: a detection method of a pressure sensor sealing ring airtightness detection device comprises the following steps:
s1: sleeving a sealing ring 14 to be detected on the fixing column 13;
s2: the driving mechanism is started to drive the pressing block 21 and the first fixing plate 12 to butt and fix the sealing ring 14, and then the sealing ring 14 can be automatically lowered into water;
s3: and in the process that the sealing ring 14 descends into the water, the second pipeline 23 is inflated, and then whether bubbles are generated in the water or not is observed.
The working principle is as follows: the pressure sensor sealing ring airtightness detection device comprises a box body 2, water 3 is added, a sealing ring 14 to be detected is sleeved on a fixing column 13 specially used for fixing the sealing ring 14, after the sealing ring is fixed, a motor 4 is started to drive a driving shaft of the motor 4 to rotate in a forward direction, a rotating block 6 is driven to rotate clockwise through the forward rotation of the driving shaft of the motor 4, a sliding rod 5 is driven to rotate along with the rotating block 6 through the clockwise rotation of the rotating block 6, a connecting ball 8 is driven to rotate through the rotation of the sliding rod 5, the connecting ball 8 is limited through a baffle plate 11, so that a spring I7 in a compression state at the moment gradually becomes a free state, the connecting ball 8 moves transversely along the lower surface of the baffle plate 11 and moves to a position shown in figure 2, the connecting plate 10 is driven to move transversely towards the right side through the movement of the connecting ball 8, and the movement of the, the fixing plate 12 is driven to transversely move towards the right side, the sealing ring 14 is driven to transversely move towards the right side to the surface of the pressing block 21 through the movement of the fixing plate 12, when the pressing block 21 presses the sealing ring 14, the pressing block 21 abuts against the sealing ring 14, so that the inner part of the sealing ring 14 is in a cavity state, water 3 in the box body 2 cannot enter the cavity, the sealing ring 14 can be driven to move to the position shown in figure 3 from figure 2 through the continuous rotation of the motor 4, if the thickness of the sealing ring 14 is thicker when the surface of the sealing ring 14 contacts the pressing block 21 when the sealing ring 14 is tested, the connecting ball 8 is limited to move upwards only by the baffle plate 11, the sealing ring 14 can also be driven to move downwards through the rotation of the motor 4, the air tightness test of the sealing rings 14 with different thickness specifications can be realized, and whether the sealing ring 14 shows bubbles can be observed through immersing the sealing ring 14 in the, the absence of air bubbles provides good front airtightness, and the presence of air bubbles provides evidence that the seal ring 14 is a defective product.
The linkage rod 18 is driven to move downwards by the downward movement of the first fixing plate 12, the second fixing plate 19 is driven to move downwards by the downward movement of the linkage rod 18, the second pipeline 23 is driven to move downwards by the downward movement of the second fixing plate 19, the one-way valve 28 is driven to move downwards by the downward movement of the second pipeline 23, the piston cylinder 26 is driven to move downwards by the downward movement of the one-way valve 28, air in the piston cylinder 26 is driven to be extruded into the second pipeline 23 under the action of the piston 27 through the downward movement of the piston cylinder 26, so that the air enters the second flow channel 20 and then enters the second through hole 22, the air in the second through hole 22 cannot flow back under the action of the one-way valve 28, the size of the second through hole 22 is much larger than that of the first through hole 16, so that enough air impacts the surface of the sealing ring 14 through the air, if the air tightness of the sealing ring 14 is good, no bubble is generated in the water 3, and, and the air passes through the first flow passage 15 and is discharged through the first pipeline 17, if the air tightness of the sealing ring 14 is poor, bubbles are obviously observed to be blown out from the surface of the sealing ring 14 in the water 3, and the air tightness of the front sealing ring 14 is poor and is defective.
After the air tightness of the sealing ring 14 is tested, the driving shaft of the driving motor 4 rotates reversely to drive the mechanism to move reversely, the mechanism is driven to move from the position shown in fig. 3 to the position shown in fig. 2 by the reverse movement of the mechanism, the fixing plate II 19 is driven to move upwards by the upward movement of the linkage rod 18, the pipeline II 23 is driven to move upwards by the upward movement of the fixing plate II 19, the one-way valve I28 is driven to move upwards by the upward movement of the pipeline II 23, the piston cylinder 26 is driven to move upwards by the upward movement of the one-way valve I28, and under the action of the piston 27, the air outside the piston cylinder 27 is supplemented to the inside of the piston cylinder 26 by the two-way valve II 29, so that the effect of re-inflating the inside of the piston cylinder 27 can be realized.
The motor 4 drives the mechanism to move from the position shown in fig. 2 to the position shown in fig. 1 by continuing the reverse movement of the driving shaft, a working cycle is completed at this time, the motor 4 is turned off, the detected sealing ring 14 can be taken down, and the next sealing ring 14 to be tested is replaced to carry out the test work of repeating the steps.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a pressure sensor sealing washer gas tightness detection device, includes bottom plate (1), water (3) and sealing washer (14), its characterized in that: the device is characterized by further comprising a box body (2), a sliding rod (5), a connecting ball (8), a first rotating shaft (9), a connecting plate (10), a first fixing plate (12), a fixing column (13), a first pipeline (17), a second fixing plate (19), a pressing block (21) and a second pipeline (23), wherein the surface of the sliding rod (5) is sleeved with the rotating block (6), a first flow channel (15) is formed inside the first fixing plate (12), a first through hole (16) is formed in the surface of the fixing column (13), a second flow channel (20) is formed inside the second fixing plate (19), a second through hole (22) is formed in the surface of the pressing block (21), the box body (2) is fixedly connected to the upper surface of the bottom plate (1), the end portion of the sliding rod (5) is fixedly connected to the surface of the connecting ball (8), and the first rotating shaft (9) is rotatably connected to the surface, the connecting plate (10) is fixedly connected to the surface of the first rotating shaft (9), the right side of the connecting plate (10) is fixedly connected with the left side of the first fixing plate (12), the fixing column (13) is fixedly connected to the right side of the first fixing plate (12), the first flow channel (15) is fixedly communicated with the first through hole (16), one end of the second pipeline (23) is fixedly connected with the upper surface of the second fixing plate (19), the pressing block (21) is fixedly connected to the left side of the second fixing plate (19), the second pipeline (23) is fixedly communicated with the second flow channel (20), the second flow channel (20) is fixedly communicated with the second through hole (22), and the supporting column (24) is fixedly connected to the upper surface of the base plate (1); the surface of the box body (2) is provided with a driving mechanism for driving the rotating block (6) to rotate; the device also comprises a reset mechanism used for resetting the position of the connecting ball (8); the inner wall of the box body (2) is also provided with a limiting mechanism for limiting the motion trail of the connecting ball (8); and a linkage mechanism for linking the movement of the second fixing plate (19) is further arranged on the right side of the first fixing plate (12).
2. The device for detecting the airtightness of the sealing ring of the pressure sensor according to claim 1, wherein: the driving mechanism comprises a motor (4), a through hole IV is formed in the surface of the box body (2), a driving shaft of the motor (4) penetrates through the through hole IV and is fixedly connected with the back face of the rotating block (6), and the motor (4) is fixedly connected with the back face of the box body (2).
3. The device for detecting the airtightness of the sealing ring of the pressure sensor according to claim 2, wherein: the reset mechanism comprises a spring (7), one end of the spring (7) is fixedly connected with the surface of the connecting ball (8), and the other end of the spring (7) is fixedly connected with the upper surface of the rotating block (6).
4. The device for detecting the airtightness of the sealing ring of the pressure sensor according to claim 3, wherein: the limiting mechanism comprises a baffle (11), and the left side of the baffle (11) is fixedly connected with the inner wall of the box body (2).
5. The device for detecting the airtightness of the sealing ring of the pressure sensor according to claim 4, wherein: the device further comprises a first pipeline (17), and the lower surface of the first pipeline (17) is fixedly communicated with the upper surface of the first flow channel (15).
6. The device for detecting the airtightness of the pressure sensor sealing ring according to any one of claims 1, 2, 3, 4 or 5, wherein: the linkage mechanism comprises a linkage rod (18), a fifth through hole is formed in the surface of the second fixing plate (19), the linkage rod (18) penetrates through the inner wall of the fifth through hole and is connected to the inner wall of the fifth through hole in a sliding mode, and the left side of the linkage rod (18) is fixedly connected with the right side of the first fixing plate (12).
7. The device for detecting the airtightness of the sealing ring of the pressure sensor according to claim 6, wherein: still include check valve one (28), check valve two (29), piston cylinder (26), piston (27) and support column (24), through-hole three has been seted up to the bottom of piston cylinder (26), support column (24) pass and sliding connection be in the inner wall of through-hole three, the lower surface of piston (27) with the last fixed surface of support column (24) is connected, the left side of check valve one (28) with the other end fixed communication of pipeline two (23), the right side of check valve one (28) with the left side fixed communication of piston cylinder (26), the left side of check valve two (29) with the right side fixed communication of piston cylinder (26).
8. The device for detecting the airtightness of the sealing ring of the pressure sensor according to claim 1, wherein: the piston is characterized by further comprising a second spring (25), one end of the second spring (25) is fixedly connected with the lower surface of the piston cylinder (26), and the other end of the second spring (25) is fixedly connected with the upper surface of the bottom plate (1).
9. The detection method of the device for detecting the airtightness of the pressure sensor sealing ring according to claim 1, characterized by comprising the steps of:
s1: sleeving a sealing ring (14) to be detected on the fixing column (13);
s2: the driving mechanism is started to drive the pressing block (21) and the first fixing plate (12) to butt and fix the sealing ring (14), and then the sealing ring (14) can be automatically lowered into water;
s3: and in the process that the sealing ring (14) descends into the water, the second pipeline (23) is inflated, and then whether bubbles are generated in the water or not is observed.
Priority Applications (1)
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