CN216717742U - Valve seat air tightness detection device - Google Patents
Valve seat air tightness detection device Download PDFInfo
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- CN216717742U CN216717742U CN202123384231.1U CN202123384231U CN216717742U CN 216717742 U CN216717742 U CN 216717742U CN 202123384231 U CN202123384231 U CN 202123384231U CN 216717742 U CN216717742 U CN 216717742U
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Abstract
The application relates to the technical field of valve tightness detection, and particularly discloses a valve seat air tightness detection device which comprises a base, a support frame, a pressure rod, a detection jig and an air pressure detection mechanism, wherein an assembly part is arranged on the base, a connecting port is arranged in the assembly part and used for installing a valve seat to be detected, the support frame is assembled on the base, the pressure rod is assembled on the support frame, the detection jig is positioned between the pressure rod and the assembly part, and the pressure rod can downwards push and press the detection jig relative to the support frame so as to enable the detection jig to be attached to the valve seat to be detected in an air tightness mode; and a detection channel is arranged outside the base, one end of the detection channel is communicated with the connector, and the other end of the detection channel is communicated with the air pressure detection mechanism. The problem of inaccurate detection of the inner spherical surface of the valve seat is solved, and the product coincidence rate is improved.
Description
Technical Field
The application belongs to the technical field of valve tightness detection, and particularly relates to a valve seat air tightness detection device.
Background
The safety valve is an emergency unloading device commonly used in a manifold system in the field of oil exploration and exploitation, a sealing surface of a valve seat, which is matched with a steel ball to play a sealing role in the valve body, is an inner spherical surface with the diameter of phi 34.925, the sealing surface is processed by adopting a grinding process, but due to high precision and small area, common detection equipment cannot measure the sealing surface after the processing is finished, and generally the sealing performance can only be detected by adopting a mode of inner spherical surface coating red lead powder and steel ball adsorption verification, a water closing experiment or a hydrostatic pressure experiment after finished product assembly.
However, the red lead powder test has the problems that the red lead powder has viscosity and the amount of the coated red lead powder cannot be controlled, so that the detection result is uncertain, and the qualified rate of the pressure test of the product after final assembly is only about 50 percent in the detection mode; in the water closing test, due to the expansion force among water molecules, even if an extremely fine gap exists between the matching surfaces, water cannot seep out to influence the final detection result, and the qualification rate of the pressure test of the product after final assembly is only about 70 percent by the detection mode; although the hydrostatic pressure experiment after the finished product is assembled has the most accurate verification result, if the pressure is released after verification, the finished product needs to be disassembled, and the test is carried out after the finished product is repaired again, so that the period is long, and the cost is high.
Therefore, in the prior art, when the sealing performance of the inner spherical surface of the valve seat is detected, the detection result cannot be specifically quantized, the quality of the detection result needs to be manually observed, so that a lot of uncertainty exists, the detection result is influenced by certain subjective factors, the result is inaccurate, and the qualified rate of finished products is low.
SUMMERY OF THE UTILITY MODEL
In order to solve among the prior art the interior sphere to the disk seat and detect inaccurately, lead to the lower technical problem of finished product qualification rate, the main aim at of this application provides a disk seat gas tightness detection device, whether change through atmospheric pressure numerical value, and then judge whether the leakproofness of disk seat interior sphere meets the requirements, very big improvement to the degree of accuracy of disk seat interior sphere detection, promoted finished product qualification rate, it promotes more than 98% to prove the finished product pressure testing qualification rate.
In order to achieve the purpose of the invention, the following technical scheme is adopted in the application:
the embodiment of the application mainly provides a disk seat gas tightness detection device, includes:
the valve seat detection device comprises a base, a valve seat detection mechanism and a valve seat detection mechanism, wherein the base is provided with an assembling part for fixing the valve seat to be detected, the assembling part is provided with a connecting port, a detection channel is arranged in the base, one end of the detection channel is communicated with the connecting port, and the other end of the detection channel is communicated with the air pressure detection mechanism;
the supporting frame is fixedly arranged on the base;
the pressure rod is movably assembled on the support frame;
the detection jig is positioned between the pressure rod and the assembling part, and the pressure rod drives the detection jig relative to the support frame, so that the detection jig is attached to the valve seat to be detected in an airtight mode.
According to the embodiment of the application, the assembly part further comprises an assembly groove, the assembly groove is arranged on the surface, facing the pressure rod, of the base, and the bottom surface of the assembly groove is a sealing surface in sealing connection with the valve seat to be detected.
According to the embodiment of the application, the support frame includes backup pad and connecting rod, the backup pad is located the base top, connecting rod fixed connection the backup pad with the base.
According to the embodiment of the application, the pressure rod comprises a locking bolt and a locking nut, and the pressure rod is connected with the supporting plate through the locking bolt.
According to the embodiment of the application, the locking nut is installed on the top of the locking bolt, and the locking nut is provided with a through hole along the radial direction.
According to the embodiment of the application, the pressure rod further comprises a guide boss, and the guide boss is installed at the bottom of the locking bolt.
According to the embodiment of the application, detection tool is including pressing cover and spheroid, it is equipped with the guiding hole to press the cover top, supplies the direction boss is arranged in it, press the cover bottom to be interior toper, supply the spheroid is arranged in press the cover bottom.
According to the embodiment of the application, the airtightness detection device further comprises a positioning ring, and the positioning ring is detachably mounted with the connecting port and used for adapting to valve seats to be detected with different diameters.
According to the embodiment of the application, the assembling portion is concave and provided with a notch, so that the valve seat to be detected can be conveniently taken out or put in.
According to the embodiment of the application, atmospheric pressure detection mechanism includes breather pipe and air supply, breather pipe one end is connected the detection passageway, the air supply is connected to the breather pipe other end, the air supply to the detection passageway lets in gas.
According to the embodiment of the application, the air pressure detection mechanism further comprises a differential pressure gauge and a pressure regulating gauge, wherein the pressure regulating gauge is arranged at one end close to the air source and used for regulating air pressure; the differential pressure gauge is arranged at one end close to the detection channel and used for observing air pressure change.
By the utility model discloses can know, what this application mainly provided is a disk seat gas tightness detection device, at first is provided with assembly portion on the base, assembly portion is provided with the connector, and the connector is used for the installation to detect the disk seat, and at this moment, detection tool bulldozes down at the pressure pole, and sphere gas tightness laminating in detection tool and the disk seat, disk seat bottom surface and assembly portion seal installation form a sealed inner chamber, are provided with the detection channel in the base outside at last, and detection channel one end switch-on the connector, other end switch-on atmospheric pressure detection mechanism lets in high-pressure gas to the inner chamber that forms, carries out atmospheric pressure detection, and whether the numerical value through atmospheric pressure changes, and then judges whether the leakproofness of sphere meets the requirements in the disk seat. Compared with the prior art, the method has the advantages that when the detection result is judged to meet the requirement, the judgment can be directly carried out through a specific pressure value, the influence of artificial subjective factors and uncertain objective factors is avoided, the detection result is accurate, and the qualification rate of finished products is over 98%.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
FIG. 1 is a schematic structural diagram of a valve seat airtightness detection apparatus provided in an embodiment of the present application;
FIG. 2 is a schematic partial sectional view of a valve seat airtightness detection apparatus according to an embodiment of the present disclosure;
FIG. 3 is a schematic structural diagram of a valve seat airtightness detection apparatus according to an embodiment of the present disclosure;
FIG. 4 is a schematic partial sectional view of a valve seat airtightness detection apparatus according to an embodiment of the present disclosure;
fig. 5 is a partial structural schematic view of a valve seat airtightness detection apparatus according to an embodiment of the present application.
Description of reference numerals:
1. a base; 2. an assembling portion; 3. detecting a jig; 4. a pressure lever; 5. a support frame; 6. an air pressure detection mechanism; 7. a valve seat to be detected; 8. a detection channel; 9. a horse teeth buckle; 10. positioning rings; 61. a breather pipe; 62. a gas source; 63. a pressure regulating meter; 64. a differential pressure gauge; 41. locking the nut; 42. locking the bolt; 43. a guide boss; 51. a nut; 52. a bolt; 53. a support plate; 31. pressing the sleeve; 32. a sphere; 21. a connecting port; 22. and assembling the groove.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all 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 application.
In order to solve the technical problem that the qualified rate of finished products is low due to the fact that the detection mode adopted in the prior art is inaccurate in detection of the inner spherical surface of the valve seat, the inventor finds that a Hongdan powder experiment, a water closing experiment and a finished product hydrostatic pressure experiment after assembly are adopted in the prior art, and because the results of the experiments need to be observed and are influenced by subjective factors, some inevitable objective factors exist, the inventor carries out tightness detection on the inner spherical surface of the valve seat in a mode of measuring air pressure, and can judge whether the tightness of the inner spherical surface of the valve seat meets the requirements or not through a direct specific pressure value.
Therefore, this application mainly provides a disk seat gas tightness detection device, as shown in fig. 1 and fig. 2, mainly include base 1, support frame 5, pressure bar 4, detection tool 3 and atmospheric pressure detection mechanism 6, be provided with assembly portion 2 on the base 1, assembly portion 2 is provided with connector 21 for the installation waits to detect disk seat 7, detection tool 3 is located between pressure bar 4 and assembly portion 2, pressure bar 4 assemble in support frame 5, just pressure bar 4 for support frame 5 can bulldoze downwards detection tool 3 makes detection tool 3 and the laminating of waiting to detect disk seat 7 gas tightness, the base 1 outside is provided with detection channel 8, detection channel one end switch-on connector 21, other end switch-on atmospheric pressure detection mechanism 6.
The specific implementation mode is that, the valve seat 7 to be detected is installed on the connecting port 21, the assembly part 2 is provided with a sealing structure matched with the valve seat 7 to be detected, so as to ensure the sealing performance of the valve seat 7 to be detected and the connecting port 21, the pressure rod 4 is mainly used for providing downward thrust for the detection jig 3, so that the detection jig 3 can be pushed into the inner spherical surface of the valve seat 7 to be detected, the model of the detection jig 3 is matched with the diameter of the inner spherical surface of the valve seat 7 to be detected, and in order to make the detection jig 3 and the inner spherical surface of the valve seat 7 to be detected realize air-tight fit. At this time, an inner cavity is formed among the detection jig 3, the valve seat 7 to be detected and the assembling portion 2, the air pressure detection mechanism 6 introduces air into the detection channel 8, the detection channel 8 is communicated with the connection port 21, the inner cavity formed in the front is filled with air, an air pressure value is generated, whether the value of the differential pressure gauge 64 of the air pressure detection mechanism 6 changes or not is observed, if the value of the differential pressure gauge 64 does not change after a period of observation, the sealing performance of the inner spherical surface of the valve seat 7 to be detected is satisfactory, and if the value of the differential pressure gauge 64 changes, the sealing performance of the inner spherical surface of the valve seat 7 to be detected is unsatisfactory.
According to the above embodiment, in the whole air pressure detection process, there is a possibility that air leakage may occur at two joint surfaces, the first joint surface is a joint surface where the detection jig 3 and the inner spherical surface of the valve seat 7 to be detected are attached in an air-tight manner, and the second joint surface is a joint between the valve seat 7 to be detected and the connection port 21. If the air leakage phenomenon occurs at the two joints, it is difficult to determine whether the sealing performance of the inner spherical surface of the valve seat 7 to be detected meets the requirement, so as to ensure that the air leakage phenomenon does not occur at the joints of the valve seat 7 to be detected and the connecting port 21 in the whole air pressure detection process, that is, two variables are changed into one variable in the whole air pressure detection process, thereby ensuring the accuracy of the detection result.
To this end, the present application provides a preferred embodiment, as shown in fig. 1 and 2, the mounting portion 2 further includes a mounting groove 22, the mounting groove 22 is disposed on the bottom surface of the connection port 21, and the mounting groove 22 is used for placing a sealing member to form a seal with the bottom surface of the valve seat 7 to be tested.
The specific embodiment is that the valve seat 7 to be detected is placed on the connecting port 21, then the pressure rod 4 pushes and presses the detection jig 3 downwards, at this time, the sphere 32 can be pushed into the inner sphere of the valve seat 7 to be detected, because the bottom surface of the connecting port 21 is provided with the assembly groove 22, a sealing element is placed in the assembly groove 22, and when the valve seat 7 to be detected is pushed and pressed, the sealing element is compressed, so that the lower end surface of the valve seat 7 to be detected is in contact with the end surface of the connecting port 21, and sealing is further achieved.
According to the embodiment of the application, as shown in fig. 1 and 3, the support frame 5 comprises a support plate 53, at least one bolt 52 and at least one nut 51, the support plate 53 is located above the base 1, and the bolt 52 and the nut 51 are fixedly connected with the support plate 53 and the base 1. It should be noted that the main function of the support frame 5 is to provide a supporting force for the pressure rod 4, so that the pressure rod 4 can push the detection fixture 3 downward, and therefore, the shape of the support frame 5 is not specifically limited, and may be a structure with a downward square notch as shown in the embodiment of the present application, or an L-shaped structure, and as long as the support frame 5 can provide a supporting force for the pressure rod 4, both belong to the technical teaching of the present application, and all belong to the protection scope of the present application.
In the preferred embodiment of this application, support frame 5 comprises a backup pad 53, two bolts 52 and two nuts 51, the through-hole has all been seted up at the both ends of backup pad 53, is equipped with the internal thread in the through-hole, the through-hole that has internal screw thread has also been seted up at the both ends of base 1, bolt 52 is equipped with the external screw thread, in operation process, will earlier bolt 52 passes in proper order backup pad 53 with the through-hole that has internal screw thread that base 1 set up will again nut 51 cover is located the upper end of bolt 52 is screwed nut 51, with this fixed support frame 5.
According to an embodiment of the present application, as shown in fig. 1 to 3, the pressure rod 4 includes a locking bolt 42, a locking nut 41 and a guide boss 43, the pressure rod 4 is connected with the support plate 53 through the locking bolt 42, the guide boss 43 is installed at the bottom of the locking bolt 42, the locking nut 41 is installed at the top of the locking bolt 42, and the locking nut 41 is provided with a through hole along the radial direction. In the specific embodiment, a through hole with an internal thread is formed in the middle of the supporting plate 53, an external thread is formed on the locking bolt 42, the locking bolt 42 can pass through the through hole formed in the middle of the supporting plate 53, and is matched with the internal thread in the through hole to be fixedly connected with the supporting plate 53, the lower end of the locking bolt 42 is fixedly provided with the guide boss 43, the guide boss 43 can be disposed in a guide hole provided at the center of the upper end of the pressing sleeve 31, the locking nut 41 is sleeved on the upper end of the locking bolt 42, a through hole arranged in the radial direction of the locking nut 41 is used for tools such as an iron rod to pass through, the locking nut 41 is rotated, thereby driving the locking bolt 42 to move downwards, making the detection jig 3 move downwards along the axial direction, and further pushing the ball 32 into the inner spherical surface of the valve seat 7 to be detected to form air-tight fit.
According to the embodiment of the application, as shown in fig. 2 and 4, the detection fixture 3 comprises a pressing sleeve 31 and a ball 32, the top of the pressing sleeve 31 is provided with a guide hole for the guide boss 43 to be arranged in, the bottom of the pressing sleeve 31 is in an inner cone shape, and the ball 32 is arranged at the bottom of the pressing sleeve 31. The types of the valve seat 7 to be detected are various, so that the ball 32 with different diameters is required to be matched with the inner spherical surface of the valve seat 7 to be detected, the pressing sleeve 31 is preferably cylindrical, the bottom end of the pressing sleeve 31 is arranged to be of an inner conical structure, and the ball 32 with different diameters can be arranged at the inner conical end of the bottom of the pressing sleeve 31, so that the air tightness detection can be carried out on the valve seat 7 to be detected with different types only by replacing the ball 32 with different diameters without replacing the pressing sleeve 31, the storage amount of the detection jig 3 is saved, and the detection efficiency is improved. In addition, the top center position of the pressing sleeve 31 is provided with a guide hole for the guide boss 43 to be arranged in, so that when the pressure rod 4 pushes downwards, the ball 32 can be ensured to move downwards along the axial direction from the centering position, the ball 32 can be ensured to be uniformly arranged at each position of the inner spherical surface of the valve seat 7 to be detected, the air-tight fit is realized, the phenomenon of different heights in the left and right directions can not occur, and the air leakage condition can occur in the detection process, so that the detection result is inaccurate.
According to the embodiment of the application, as shown in fig. 1 and fig. 2, the air tightness detecting device further comprises a positioning ring 10, and the positioning ring 10 is detachably mounted with the connecting port 21 and is used for adapting to valve seats 7 to be detected with different diameters. Because the airtightness of the valve seats 7 to be detected of different models can be detected during the detection process, in order to enable the valve seat airtightness detection device to detect the airtightness of the valve seats 7 to be detected of different models to the greatest extent, the application range is expanded, and the detection efficiency is improved, the applicant further provides the positioning ring 10, the diameter of the positioning ring 10 is the same as that of the connecting port 21, the positioning ring 10 can be attached to the connecting port 21, in order to ensure that the positioning ring 10 and the connecting port 21 do not leak air, an O-shaped sealing ring can be placed at the joint between the bottom surface of the positioning ring 10 and the end surface of the connecting port 21, and the sealing effect of the joint is ensured, in addition, a round hole matched with the valve seats 7 to be detected of different models is further arranged inside the positioning ring 10, that is, when the diameter of the valve seat 7 to be detected is smaller than that of the connecting port 21, the preset positioning ring 10 can be directly placed on the connecting port 21, then the valve seat 7 to be detected is placed in the circular hole of the positioning ring 10, and air tightness detection can be performed, so that air tightness detection can be performed on the valve seats 7 to be detected in different models.
In the prior art, in order to measure the valve seats 7 to be detected with different models, the assembling portion 2 is provided with a device similar to bushings, because the bushings are respectively arranged on two sides of the assembling portion 2, multiple positions are required to be sealed by sealing rings, the probability of air leakage is improved, furthermore, the bushings are arranged on two sides of the assembling portion, the left and right heights are different, the bushings are not located on a horizontal line, when the pressure rod pushes and presses downwards, the ball body 32 cannot be completely attached to the inner spherical surface of the valve seats 7 to be detected, gaps with different degrees can be generated, and the detection result is inaccurate. It should be emphasized that the positioning ring 10 of the present invention is intended to be adaptable to different types of valve seats 7 to be tested, and only one position needs to be provided with a sealing ring, so as to reduce the number of sealing rings and reduce the risk of air leakage.
According to the embodiment of the present application, as shown in fig. 1 and 3, the fitting portion 2 has a concave shape and is provided with a notch. Because the connection port 21 is disposed in the assembly portion 2, the valve seat 7 to be detected can be quickly butted against the connection port 21, and the valve seat 7 to be detected can be conveniently taken out, so that the assembly portion 2 is formed in a notch shape.
According to the embodiment of the present application, as shown in fig. 1 to 5, the air pressure detecting mechanism 6 includes a vent pipe 61 and an air source 62, one end of the vent pipe 61 is connected to the detecting channel 8, the other end of the vent pipe 61 is connected to the air source 62, the air source 62 feeds air into the detecting channel 8, the air pressure detecting mechanism further includes a differential pressure gauge 64 and a pressure regulating gauge 63, the pressure regulating gauge 63 is disposed near one end of the air source 62 for regulating air pressure; the differential pressure gauge 64 is arranged near one end of the detection channel 8 and is used for observing air pressure changes.
The specific realization mode is that a horse teeth buckle 9 is arranged at the detection channel 8, one end of the vent pipe 61 is connected with an air inlet of the horse teeth buckle 9, then, the gas source 62 is activated, the gas source 62 may be a gas pump air motor, a pneumatic pump, a gas booster pump, or other devices, or may be supplied with high-pressure gas by other devices, then, by adjusting the pressure-regulating gauge 63, the cavity formed by the detection fixture 3, the valve seat 7 to be detected and the connecting port 21 is filled with proper gas, then, by observing the value change of the differential pressure gauge 64, after a period of observation, if the value of the differential pressure gauge 64 does not change, the tightness of the inner spherical surface of the valve seat 7 to be detected is satisfied, if the value of the differential pressure gauge 64 changes after a period of observation, it indicates that the tightness of the inner spherical surface of the valve seat 7 to be detected is not satisfactory.
It should be noted that references in the specification to "one embodiment," "an example embodiment," "some embodiments," etc., indicate that the embodiment described may include a particular feature, structure, or characteristic, but every embodiment may not necessarily include the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is within the knowledge of one skilled in the art to effect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.
It should be readily understood that "on … …", "above … …" and "above … …" in this disclosure should be interpreted in the broadest sense such that "on … …" means not only "directly on something", but also includes the meaning of "on something" with intervening features or layers therebetween, and "above … …" or "above … …" includes not only the meaning of "above something" or "above" but also includes the meaning of "above something" or "above" with no intervening features or layers therebetween (i.e., directly on something).
Furthermore, spatially relative terms, such as "below," "lower," "above," "upper," and the like, may be used herein for ease of description to describe one element or feature's illustrated relationship to another element or feature. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. The device may have other orientations (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly as well.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.
Claims (11)
1. A valve seat airtightness detection apparatus, characterized by comprising:
the valve seat detection device comprises a base, a valve seat detection mechanism and a valve seat detection mechanism, wherein the base is provided with an assembling part for fixing the valve seat to be detected, the assembling part is provided with a connecting port, a detection channel is arranged in the base, one end of the detection channel is communicated with the connecting port, and the other end of the detection channel is communicated with the air pressure detection mechanism;
the supporting frame is fixedly arranged on the base;
the pressure rod is movably assembled on the support frame;
the detection jig is positioned between the pressure rod and the assembling part, and the pressure rod drives the detection jig relative to the support frame, so that the detection jig is attached to the valve seat to be detected in an airtight mode.
2. The valve seat airtightness detection apparatus according to claim 1, wherein the fitting portion further includes a fitting groove that is provided on a surface of the base facing the pressure rod, and a bottom surface of the fitting groove is a sealing surface that forms a sealing connection with the valve seat to be detected.
3. The device for detecting the airtightness of the valve seat according to claim 1, wherein the support frame includes a support plate and a connecting rod, the support plate is located above the base, and the connecting rod fixedly connects the support plate and the base.
4. The valve seat airtightness detection apparatus according to claim 3, wherein the pressure rod includes a lock bolt and a lock nut, and the pressure rod is connected to the support plate through the lock bolt.
5. The valve seat airtightness detection apparatus according to claim 4, wherein the lock nut is mounted on a top portion of the lock bolt, and the lock nut is provided with a through hole in a radial direction.
6. The valve seat airtightness detection apparatus according to claim 4, wherein the pressure rod further includes a guide boss, and the guide boss is mounted on the bottom of the lock bolt.
7. The device for detecting the airtightness of the valve seat according to claim 6, wherein the detection jig comprises a pressing sleeve and a ball, the top of the pressing sleeve is provided with a guide hole for the guide boss to be arranged therein, and the bottom of the pressing sleeve is an inner cone for the ball to be arranged at the bottom of the pressing sleeve.
8. The valve seat airtightness detection device according to claim 1, further comprising a positioning ring, wherein the positioning ring is detachably mounted on the connection port, and is adapted to valve seats to be detected with different diameters.
9. The device for detecting the airtightness of the valve seat according to claim 1, wherein the fitting portion has an inward concave shape and is provided with a notch for facilitating the removal or insertion of the valve seat to be detected.
10. The device for detecting the airtightness of the valve seat according to claim 1, wherein the air pressure detecting mechanism includes a vent pipe and an air source, one end of the vent pipe is connected to the detection channel, the other end of the vent pipe is connected to the air source, and the air source supplies air to the detection channel.
11. The valve seat airtightness detection apparatus according to claim 10, wherein the air pressure detection mechanism further includes a differential pressure gauge and a pressure regulating gauge, the pressure regulating gauge being provided at an end close to the air source for regulating air pressure; the differential pressure gauge is arranged at one end close to the detection channel and used for observing air pressure change.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123384231.1U CN216717742U (en) | 2021-12-29 | 2021-12-29 | Valve seat air tightness detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123384231.1U CN216717742U (en) | 2021-12-29 | 2021-12-29 | Valve seat air tightness detection device |
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| CN216717742U true CN216717742U (en) | 2022-06-10 |
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| CN202123384231.1U Active CN216717742U (en) | 2021-12-29 | 2021-12-29 | Valve seat air tightness detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115060433A (en) * | 2022-06-27 | 2022-09-16 | 广东傲美智能科技有限公司 | Air tightness detection and debugging system and automatic debugging method for bubble water machine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115060433A (en) * | 2022-06-27 | 2022-09-16 | 广东傲美智能科技有限公司 | Air tightness detection and debugging system and automatic debugging method for bubble water machine |
| CN115060433B (en) * | 2022-06-27 | 2024-03-12 | 广东傲美智能科技有限公司 | Bubble water machine air tightness detection and debugging system and automatic debugging method |
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