CN220120315U - Product clamping tool for filter leak detection equipment - Google Patents
Product clamping tool for filter leak detection equipment Download PDFInfo
- Publication number
- CN220120315U CN220120315U CN202222951418.3U CN202222951418U CN220120315U CN 220120315 U CN220120315 U CN 220120315U CN 202222951418 U CN202222951418 U CN 202222951418U CN 220120315 U CN220120315 U CN 220120315U
- Authority
- CN
- China
- Prior art keywords
- locking
- rod
- buffer
- driving
- block
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 21
- 230000005540 biological transmission Effects 0.000 claims abstract description 16
- 230000000149 penetrating effect Effects 0.000 claims abstract description 3
- 238000009434 installation Methods 0.000 claims description 11
- 230000003139 buffering effect Effects 0.000 claims description 2
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 16
- 238000000034 method Methods 0.000 description 5
- 238000007789 sealing Methods 0.000 description 3
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000004826 seaming Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model relates to a product clamping tool for filter leakage detection equipment, which comprises a mounting frame and a fixed block arranged on the mounting frame, wherein a locking rod is arranged in the fixed block in a penetrating manner, a mounting sleeve is sleeved outside the locking rod, a driving rod connected with the locking rod is arranged in the mounting sleeve, one end of the locking rod penetrates out of the fixed block and is provided with a threaded joint, the other end of the locking rod is provided with a buffer connecting cavity, one end of the driving rod facing the locking rod is provided with a locking block, the other end of the driving rod is provided with a tensioning mechanism for driving the locking rod to retract towards the driving rod, the locking block is limited in the buffer connecting cavity and is provided with a buffer space with the buffer connecting cavity, one end of the buffer elastic piece is propped against the inner wall of the buffer connecting cavity, and the other end of the buffer elastic piece is propped against the locking block, and a screw rod gas transmission channel for supplying gas to the threaded joint is arranged in the locking rod, so that the threaded joint can drive the filter to rotate when the filter is detected in water, and the filter leakage point is exposed conveniently.
Description
Technical Field
The utility model relates to the field of filter detection, in particular to a product clamping tool for filter leakage detection equipment.
Background
The air filter is one of important accessories of the engine, and the performance of the air filter not only determines the reliability and service life of the engine, but also has great influence on the dynamic property, economy and emission performance of the engine. The air tightness of the air filter is directly related to the quality of motor-driven equipment, so the pressure regulation and leakage detection of the automobile filter are very important technical fields.
The existing filter comprises a shell and a cover plate, a containing cavity is arranged between the shell and the cover plate, a paper element is arranged in the containing cavity, an oil inlet (oil outlet) is arranged on the cover plate, an oil outlet (oil inlet) is arranged at the bottom of the shell, the shell and the cover plate are fixedly connected through screws or are processed into double-layer seaming at the joint of the shell and the cover plate, the connecting strength and the sealing performance between the filter cover and the shell are guaranteed, a mounting screw hole for being mounted on an automobile is formed in the center of the filter, the air tightness test of the filter generally adopts a soaking method, namely, the product filter is fixed firstly, then the fixed filter is soaked in water, then air is injected into the product filter, and the air tightness of the filter is determined by observing the air bubble condition of the water surface.
The Chinese patent discloses a filter is product fixed establishment for check out test set of application number CN202221061545.X, open the hook pull head through stretching the structure that struts that draws, will filter and block later, stretch the cylinder of drawing the structure and draw together towards the fixed block direction with stretching the structure and hook pull head, will pull towards annular step inslot the port of product filter promptly, filter edge and sealed the contradicting of filling up, play sealedly, hook pull head shrink, gas fills in the filter through the gas-supply hole on the fixed block, observe whether there is the bubble to spill in the filter under water.
However, in the technical scheme, the filter is easy to damage the mounting screw hole in the filter by adopting the hook pull head, so that the filter is not easy to mount on an automobile, and meanwhile, the condition that the air tightness test is inaccurate due to the fact that the hook pull head is not firmly connected can not exist; meanwhile, the existing filter detection equipment is static in water when detecting the filter, if a leakage point is arranged below, bubbles in the water are not easy to detect after the bubbles appear, and bad products are missed to be detected.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a product clamping tool for filter leakage detection equipment, aiming at the defects of the prior art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: product clamping tool for filter leak detection equipment comprises a mounting frame and a fixing block arranged on the mounting frame, and is characterized in that: the locking device is characterized in that a locking rod is arranged in the fixed block in a penetrating manner, an installation sleeve is sleeved outside the locking rod, a driving rod connected with the locking rod is arranged in the installation sleeve, a threaded joint is arranged at one end of the locking rod after the locking rod penetrates out of the fixed block, a buffer connecting cavity is arranged at the other end of the locking rod, a locking block is arranged at one end of the driving rod, which faces the locking rod, a tensioning mechanism for driving the locking rod to retract towards the direction of the driving rod is arranged at the other end of the locking rod, the locking block is limited in the buffer connecting cavity, a buffer space is reserved in the buffer connecting cavity, a buffer elastic piece is arranged in the buffer connecting cavity, one end of the buffer elastic piece is propped against the inner wall of the buffer connecting cavity, the other end of the buffer elastic piece is propped against the locking block, and a screw gas transmission channel for supplying gas to the threaded joint is arranged in the locking rod.
By adopting the technical scheme, the locking rod and the driving rod are arranged in the fixed block, the driving rod drives the locking rod to axially lift and simultaneously has a buffer space with the locking rod, the filter can rotate by itself and be in threaded connection with the threaded connector, the threaded connector is rotated to be connected when the filter is fixed, the end face of the installation screw hole of the filter is provided with a screw head for screwing in, when the threaded connector is not corresponding to the screw head of the installation screw hole, the threaded connector cannot be screwed in, the installation screw hole of the filter cannot be damaged to cause the subsequent installation problem, so that the threaded connector can automatically retract when receiving resistance through the buffer connection cavity, the situation that the installation screw hole is damaged when the position of the screw head is not aligned to force the threaded connection in the screwing process is avoided, the filter is firmly fixed instead of a hook pull head, the installed filter can be driven by the tensioning mechanism to be tightly abutted against the fixed seat, the closed environment is realized, the subsequent test is facilitated, and the setting of the screw rod channel is convenient, and an external air source can supply air to the filter installed on the fixed block through the screw rod channel, and whether air leakage exists in water or not is detected.
Above-mentioned filter leak hunting equipment is with product centre gripping frock can further set up to: the tensioning mechanism comprises a tensioning cylinder arranged at one end, far away from the fixed block, of the mounting frame, the output end of the tensioning cylinder is connected with the driving rod, and the locking rod is driven to axially stretch in the fixed block.
By adopting the technical scheme, the tensioning cylinder drives the locking rod to axially stretch in the fixed block, and when the tensioning cylinder works, the threaded joint can be pushed upwards to be installed by the filter, and after the tensioning cylinder is installed, the threaded joint can be driven to descend, so that the tensioning cylinder and the sealing ring on the fixed block are tightly abutted against each other, a closed environment is formed, and the subsequent air tightness test is facilitated.
Above-mentioned filter leak hunting equipment is with product centre gripping frock can further set up to: the driving rod is provided with an air inlet nozzle, an air inlet channel communicated with the air inlet nozzle is arranged in the driving rod, and the air inlet channel is communicated with the screw gas transmission channel.
By adopting the technical scheme, the driving rod is provided with the air inlet nozzle connected with an external air source, air is conveyed into the filter connected with the threaded joint through the air inlet channel and the buffer connecting cavity to carry out air tightness test, and the buffer connecting cavity can not leak in water due to the existence of the mounting sleeve.
Above-mentioned filter leak hunting equipment is with product centre gripping frock can further set up to: the tensioning cylinder is connected with the driving rod through a coupling.
By adopting the technical scheme, the coupler is used for linking the two non-concentric tensioning cylinders with the driving rod, so that the problem of non-concentricity of the driving rod due to accumulated tolerance is avoided.
Above-mentioned filter leak hunting equipment is with product centre gripping frock can further set up to: the buffer elastic piece is a spring, spring fixing grooves for accommodating the buffer elastic piece are formed in the buffer connecting cavity and the locking block, the spring fixing grooves are communicated with the screw gas transmission channel and the air inlet channel, and the diameter of the buffer elastic piece is larger than the diameters of the screw gas transmission channel and the air inlet channel.
By adopting the technical scheme, the two ends of the buffer elastic piece are respectively arranged in the spring fixing groove, so that the buffer spring which is ensured by the arrangement can not deviate from the two ends in the deformation process all the time, and the buffer spring can not enter into the gas transmission channel to influence the gas supply when the gas supply is ensured.
Above-mentioned filter leak hunting equipment is with product centre gripping frock can further set up to: the locking block is a dovetail clamping block, and a dovetail clamping groove which is abutted with the locking block is formed in the buffer connecting cavity, so that the locking block can drive the locking rod to axially lift.
By adopting the technical scheme, the setting of the dovetail structure can limit the buffer connection cavity from being separated when the axial direction between the locking block and the buffer connection cavity moves downwards, and the freedom degree in the front-back direction is locked by the mounting sleeve, so that the mounting sleeve can be conveniently dismounted, the threaded connector can obtain a buffer space after being mounted, and the mounting screw hole of the filter is forcibly connected and damaged when the threaded head of the filter is not aligned with the threaded connector.
Above-mentioned filter leak hunting equipment is with product centre gripping frock can further set up to: the mounting frame is provided with a rotary driving motor, and a rotary driving assembly for driving the locking rod to rotate is arranged between the rotary driving motor and the driving rod.
By adopting the technical scheme, the rotary driving motor drives the locking rod to rotate through the rotary driving assembly, so that the filter is fixed on the fixed block by rotating the threaded joint, and meanwhile, the filter in water is convenient to rotate, and the leakage point of the filter is exposed.
Above-mentioned filter leak hunting equipment is with product centre gripping frock can further set up to: the rotary driving assembly comprises a driving gear which is arranged outside the mounting sleeve and is in linkage with the output end of the rotary driving motor, the driving gear drives the mounting sleeve to rotate, the mounting sleeve drives the driving rod to rotate, and the driving rod is in linkage with the locking rod to rotate.
By adopting the technical scheme, the rotary driving motor drives the driving gear to rotate through the driving gear, the driving gear is linked with the installation sleeve, the driving rod and the locking rod to rotate, so that the filter is fixed on the fixed block by rotating the threaded joint, a plurality of filter assembly tests are facilitated, and meanwhile, when in air tightness test, the locking rod can also drive the filter in water to rotate, so that all positions of the locking rod can have part of time to face the water surface, and whether defective products exist or not is accurately identified, and detection omission is avoided.
Above-mentioned filter leak hunting equipment is with product centre gripping frock can further set up to: and the driving gear is linked with the mounting sleeve and the mounting sleeve is linked with the driving rod through the positioning convex block and the positioning clamping groove.
By adopting the technical scheme, the quick clamping is realized through the positioning convex blocks and the positioning clamping grooves, and the disassembly and assembly are convenient.
Above-mentioned filter leak hunting equipment is with product centre gripping frock can further set up to: the locking block is a dovetail clamping block, and the buffering connecting cavity is provided with a dovetail clamping groove which is abutted against the locking block, so that the locking block can drive the locking rod to axially lift and rotate circumferentially.
By adopting the technical scheme, the setting of the dovetail structure limits the freedom degree of the locking block and the buffer connecting cavity in the left-right direction when the locking block moves downwards in the axial direction, and the freedom degree of the locking block in the front-back direction is locked by the mounting sleeve, so that the locking sleeve can drive the locking screw to axially lift and rotate in the circumferential direction, and meanwhile, the locking sleeve also has a buffer space.
The utility model is further described below with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic perspective view of an embodiment of the present utility model.
Fig. 2 is a schematic perspective view of the mounting frame and the rotary driving motor removed according to the embodiment of the utility model.
Fig. 3 is an exploded view of fig. 2.
Fig. 4 is a cross-sectional view of an embodiment of the present utility model in a locked state.
Fig. 5 is a cross-sectional view of an embodiment of the present utility model in a buffered state.
Fig. 6 is an enlarged view at a of fig. 3.
Fig. 7 is an enlarged view at B of fig. 4.
Description of the embodiments
As shown in fig. 1-7, the product clamping fixture for the filter leakage detection equipment comprises a mounting frame 1 and a fixed block 2 arranged on the mounting frame 1, wherein a locking rod 3 is penetrated in the fixed block 2, a mounting sleeve 4 is sleeved outside the locking rod 3, a driving rod 5 connected with the locking rod 3 is arranged in the mounting sleeve 4, one end of the locking rod 3 penetrates out of the fixed block 2 and is provided with a threaded joint 31 screwed with the bottom of a filter a, the other end of the locking rod 3 is provided with a buffer connecting cavity 32, one end of the driving rod 5 facing the locking rod 3 is provided with a locking block 51, the other end of the driving rod 5 is provided with a tensioning mechanism for driving the locking rod 3 to retract towards the direction of the driving rod 5, the locking block 41 is limited in the buffer connecting cavity 32 and is provided with a buffer space b with the buffer connecting cavity 32, one end of the buffer elastic member 321 is propped against the inner wall of the buffer connecting cavity 32, the other end of the buffer elastic member 321 is propped against the locking block 51, the locking rod 3 is internally provided with a screw gas transmission channel 33 for supplying gas to the threaded joint 31 so as to test the air tightness of the filter a, the driving rod 5 is provided with a gas inlet nozzle 52, the driving rod 5 is internally provided with a gas inlet channel 53 communicated with the gas inlet nozzle 52, the gas inlet channel 53 is communicated with the screw gas transmission channel 33, during the air tightness test, the filter a at the threaded joint 31 can be automatically rotated by the filter a to be connected with the threaded joint 31, the threaded joint 31 can be rotationally connected with the fixed filter a, the filter a is tightly fixed on the fixed block 2 to realize a sealed space, then the sealed space is immersed in water, the gas inlet nozzle 52 is connected with a gas source, the gas is sent into the filter a connected with the threaded joint 31 through the gas inlet channel 53 and the buffer connection cavity 32 for air tightness test, the buffer connection cavity 32 cannot leak in water due to the existence of the installation sleeve 4, the buffer connection cavity 32 is arranged, so that the threaded joint 31 can automatically retract when receiving resistance, and the damage to the mounting screw hole caused by the fact that the position of the threaded head is not aligned to force the threaded connection in the screwing process is avoided.
As shown in fig. 7, the buffer connection cavity 32 and the locking block 51 are provided with spring fixing grooves 54 for accommodating the buffer springs 321, the spring fixing grooves 54 are communicated with the screw gas transmission channel 33 and the air intake channel 53, the diameter of the buffer springs 321 is larger than the diameters of the screw gas transmission channel 33 and the air intake channel 53, and the buffer springs 321 which are guaranteed in such a way are always propped against two ends in the deformation process and cannot deviate, and the buffer springs 321 cannot enter the gas transmission channel while guaranteeing gas supply.
As shown in fig. 6, the locking block 51 is a dovetail-shaped clamping block, the buffer connecting cavity 32 is provided with a dovetail clamping groove 322 which is abutted against the locking block 51, so that the locking block 51 can drive the locking rod 3 to axially lift, and the locking rod 3 can be driven to circumferentially rotate through the locking block 51, namely, the freedom degree of the locking block 51 and the buffer connecting cavity 32 in the left-right direction is limited when the locking block moves downwards axially, and the freedom degree in the front-back direction is locked by the mounting sleeve 4, so that the mounting sleeve 4 can be conveniently dismounted when the mounting sleeve 4 is taken out, the threaded joint 31 can obtain a buffer space after the mounting sleeve 4 is mounted, and the mounting screw hole of the filter is prevented from being damaged when the screw head is not found.
As shown in fig. 1-7, the tensioning mechanism comprises a tensioning cylinder 6 arranged at one end of the mounting frame 1 far away from the fixed block 2, wherein the output end of the tensioning cylinder 6 is connected with the driving rod 5 through a coupler 7, and drives the locking rod 3 to axially stretch in the fixed block 2, the coupler 7 locks and connects two non-concentric shafts, so that the concentricity problem caused by accumulated tolerance is avoided, the two non-concentric shafts are quickly linked, the tensioning cylinder 6 can push the threaded joint 31 to move upwards when in operation, the filter a is installed, and after the filter a is installed, the tensioning cylinder 6 can drive the threaded joint 31 to descend, so that the threaded joint is tightly abutted against a sealing ring on the fixed block 2, a closed environment is formed, and the subsequent air tightness test is convenient.
As shown in fig. 1-3, a rotary driving motor 8 is arranged on the mounting frame 1, a rotary driving assembly for driving the locking rod 3 to rotate is arranged between the rotary driving motor 8 and the driving rod 5, the rotary driving assembly comprises a driving gear 41 which is arranged outside the mounting sleeve 4 and is in linkage with the output end of the rotary driving motor 8, the driving gear 41 drives the mounting sleeve 4 to rotate, the mounting sleeve 4 drives the driving rod 5 to rotate, the driving rod 5 is in linkage with the locking rod 3 to rotate, the driving gear 41 and the mounting sleeve 4 are both in linkage with the positioning slot 43 through a positioning lug 42, the output end of the rotary driving motor 9 is provided with a gear meshed with the driving gear 41 or in linkage with the driving gear 41 through a plurality of transmission gears, the driving rod 5 is further rotated, due to the arrangement of a dovetail structure, the driving rod 5 can be in linkage with the locking rod 3 to rotate when rotating, so that the locking rod 3 can automatically rotate when the filter a is fixed, the filter a is fixed on the fixed block 2, and the fixed block 2 is abutted, meanwhile, the locking rod 3 can also drive the filter a in water to rotate tightly, so that the position of the filter a in the water can be accurately detected, whether the position of the filter is in the water surface is in a position or not.
Claims (10)
1. Product clamping tool for filter leak detection equipment comprises a mounting frame and a fixing block arranged on the mounting frame, and is characterized in that: the locking device is characterized in that a locking rod is arranged in the fixed block in a penetrating manner, an installation sleeve is sleeved outside the locking rod, a driving rod connected with the locking rod is arranged in the installation sleeve, a threaded joint is arranged at one end of the locking rod after the locking rod penetrates out of the fixed block, a buffer connecting cavity is arranged at the other end of the locking rod, a locking block is arranged at one end of the driving rod, which faces the locking rod, a tensioning mechanism for driving the locking rod to retract towards the direction of the driving rod is arranged at the other end of the locking rod, the locking block is limited in the buffer connecting cavity, a buffer space is reserved in the buffer connecting cavity, a buffer elastic piece is arranged in the buffer connecting cavity, one end of the buffer elastic piece is propped against the inner wall of the buffer connecting cavity, the other end of the buffer elastic piece is propped against the locking block, and a screw gas transmission channel for supplying gas to the threaded joint is arranged in the locking rod.
2. The product clamping fixture for filter leak detection equipment according to claim 1, wherein: the tensioning mechanism comprises a tensioning cylinder arranged at one end, far away from the fixed block, of the mounting frame, the output end of the tensioning cylinder is connected with the driving rod, and the locking rod is driven to axially stretch in the fixed block.
3. The product clamping fixture for filter leak detection equipment according to claim 2, wherein: the driving rod is provided with an air inlet nozzle, an air inlet channel communicated with the air inlet nozzle is arranged in the driving rod, and the air inlet channel is communicated with the screw gas transmission channel.
4. The product clamping fixture for filter leak detection equipment according to claim 2, wherein: the tensioning cylinder is connected with the driving rod through a coupling.
5. The product clamping fixture for filter leak detection equipment according to claim 3, wherein: the buffer elastic piece is a spring, spring fixing grooves for accommodating the buffer elastic piece are formed in the buffer connecting cavity and the locking block, the spring fixing grooves are communicated with the screw gas transmission channel and the air inlet channel, and the diameter of the buffer elastic piece is larger than the diameters of the screw gas transmission channel and the air inlet channel.
6. The product clamping fixture for filter leak detection equipment according to any one of claims 1 to 5, wherein: the locking block is a dovetail clamping block, and a dovetail clamping groove which is abutted with the locking block is formed in the buffer connecting cavity, so that the locking block can drive the locking rod to axially lift.
7. The product clamping fixture for filter leak detection equipment according to any one of claims 1 to 5, wherein: the mounting frame is provided with a rotary driving motor, and a rotary driving assembly for driving the locking rod to rotate is arranged between the rotary driving motor and the driving rod.
8. The product clamping fixture for filter leak detection equipment of claim 7, wherein: the rotary driving assembly comprises a driving gear which is arranged outside the mounting sleeve and is in linkage with the output end of the rotary driving motor, the driving gear drives the mounting sleeve to rotate, the mounting sleeve drives the driving rod to rotate, and the driving rod is in linkage with the locking rod to rotate.
9. The product clamping fixture for filter leak detection equipment of claim 8, wherein: and the driving gear is linked with the mounting sleeve and the mounting sleeve is linked with the driving rod through the positioning convex block and the positioning clamping groove.
10. The product clamping fixture for filter leak detection equipment of claim 8, wherein: the locking block is a dovetail clamping block, and the buffering connecting cavity is provided with a dovetail clamping groove which is abutted against the locking block, so that the locking block can drive the locking rod to axially lift and rotate circumferentially.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202222951418.3U CN220120315U (en) | 2022-11-03 | 2022-11-03 | Product clamping tool for filter leak detection equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202222951418.3U CN220120315U (en) | 2022-11-03 | 2022-11-03 | Product clamping tool for filter leak detection equipment |
Publications (1)
Publication Number | Publication Date |
---|---|
CN220120315U true CN220120315U (en) | 2023-12-01 |
Family
ID=88890443
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202222951418.3U Active CN220120315U (en) | 2022-11-03 | 2022-11-03 | Product clamping tool for filter leak detection equipment |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN220120315U (en) |
-
2022
- 2022-11-03 CN CN202222951418.3U patent/CN220120315U/en active Active
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN112345170B (en) | Aeroengine supporting casing airtightness detection clamp and detection method | |
WO2018080598A1 (en) | Injector sleeve assembly and method for field repair procedure | |
CN116773124B (en) | Pressure vessel gas tightness detection device | |
CN220120315U (en) | Product clamping tool for filter leak detection equipment | |
CN114486092B (en) | Test device for testing performance of non-metal sealing element in high-pressure hydrogen environment | |
CN116989946A (en) | Automobile rubber tube tightness detection device | |
CN220187942U (en) | Turnover clamping device for filter leakage detection equipment | |
CN117848920A (en) | Concrete impermeability experiment detection device and detection method thereof | |
CN116380681A (en) | Pressure balance pressure test tool for sealing end face of workpiece | |
CN215931182U (en) | Hose airtight tool | |
CN212059243U (en) | Hose test pneumatic clamp | |
CN213289337U (en) | Device for press mounting of L-shaped PCV (positive pressure recovery) rigid pipe | |
CN211852132U (en) | High-pressure double-screw pump body pressing tool | |
CN111272361B (en) | Single tube pressure test and leakage detection tool for tube type heat exchanger | |
CN109029870B (en) | End cover of ball valve | |
CN209977142U (en) | Inflatable sealing equipment of damper | |
CN201229224Y (en) | Device for simultaneously testing air tightness of multi marine diesel piston | |
CN201615819U (en) | Manual air-tightness tester of cylinder cover | |
CN220227374U (en) | Hydraulic element test device | |
CN221528593U (en) | Nitrogen oxygen sensor detection module frock | |
CN213579980U (en) | Sealing detection device for automobile transmission shaft sleeve assembly | |
CN220794565U (en) | Large-scale speed reducer case gas tightness detection device | |
CN218916705U (en) | Mechanical seal device detects frock | |
CN219391244U (en) | Data testing device for precision parts | |
CN219747630U (en) | Simple safety valve checking and clamping device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant |