CN113654729A - Waterproof performance dynamic test equipment applied to rolling bearing manufacturing - Google Patents
Waterproof performance dynamic test equipment applied to rolling bearing manufacturing Download PDFInfo
- Publication number
- CN113654729A CN113654729A CN202110773060.7A CN202110773060A CN113654729A CN 113654729 A CN113654729 A CN 113654729A CN 202110773060 A CN202110773060 A CN 202110773060A CN 113654729 A CN113654729 A CN 113654729A
- Authority
- CN
- China
- Prior art keywords
- waterproof
- rolling bearing
- testing
- test
- waterproof performance
- 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.)
- Pending
Links
Images
Classifications
-
- 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
-
- 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
- G01M13/04—Bearings
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses a waterproof performance dynamic test device applied to rolling bearing manufacture, which comprises: the waterproof testing device is used for dynamically testing the waterproof performance of the rolling bearing and is provided with a testing groove inside the right side; the motor, the bolt fastening is in waterproof testing arrangement's right side, the output of motor is connected with the test bull stick, and the left end portion of test bull stick runs through waterproof testing arrangement's right side wall and utilize the bearing with waterproof testing arrangement's right side wall rotates and is connected. This be applied to waterproof performance dynamic test equipment that antifriction bearing made, drive piston body removes, communicates each other through lower through-hole, connecting channel and last through-hole between pressure regulating groove and the test groove, so can realize the transmission of air current, adjusts the pressure in the test groove, carries out waterproof performance test to antifriction bearing under different pressures, and the diversification is tested, and the accuracy of multiunit test data multiplicable test result.
Description
Technical Field
The invention relates to the technical field of rolling bearing manufacturing, in particular to a dynamic waterproof performance testing device applied to rolling bearing manufacturing.
Background
The rolling bearing is a precise mechanical element capable of reducing friction loss between a shaft and a shaft seat, and is applied to a plurality of mechanical devices, and some mechanical devices need to work in a humid or water place, so that the waterproofness of the rolling bearing needs to be ensured, and the waterproofness of the rolling bearing needs to be detected.
The publication number is CN206208462U entitled waterproof bearing inspection device, which comprises a base, wherein the upper part of the base is provided with a test groove for accommodating liquid, and the bottom of the test groove is recessed into a bearing positioning groove; the middle part of the bottom of the bearing positioning groove is provided with an annular groove communicated with an external air source, a cylinder body wrapped around the middle part of the annular groove forms a supporting table, and the bottom surface of the bearing positioning groove outside the annular groove forms an annular table; and the supporting platform and the annular platform are both provided with O-shaped sealing rings. Sealing the waterproof bearing to be tested in the test liquid in the test groove, and judging whether the tested waterproof bearing is qualified or not through gas; the structure has the advantages of convenient operation, rapid and stable test, and especially higher reliability of the test process and the test result.
The above prior art solutions have the following drawbacks: the method is simple and conventional, the waterproofness of the rolling bearing is detected, the pressure of a test water area cannot be adjusted, the detection data are single, the method is not suitable for mechanical equipment working underwater, the rolling bearing cannot be conveniently assembled, dynamic test of the rolling bearing in a simulation working state is not facilitated, and the test limitation is large.
Therefore, we propose a dynamic test device for waterproof performance applied to rolling bearing manufacture so as to solve the above-mentioned problems.
Disclosure of Invention
The invention aims to provide a dynamic test device for the waterproof performance of a rolling bearing, which is applied to the manufacture of the rolling bearing and aims to solve the problems that the existing market in the background art only simply and conventionally detects the waterproof performance of the rolling bearing, can not adjust the pressure of a test water area, has single detection data, can not conveniently assemble the rolling bearing and is not beneficial to the dynamic test of the simulation working state of the rolling bearing.
In order to achieve the purpose, the invention provides the following technical scheme: a waterproof performance dynamic test device applied to rolling bearing manufacturing comprises:
the waterproof testing device is used for dynamically testing the waterproof performance of the rolling bearing and is provided with a testing groove inside the right side;
the pressure regulating groove is formed in the left side of the waterproof testing device, and a piston body is attached to the inside of the pressure regulating groove;
the motor is fixed on the right side of the waterproof testing device through a bolt, the output end of the motor is connected with a testing rotating rod, and the left end part of the testing rotating rod penetrates through the right side wall of the waterproof testing device and is rotationally connected with the right side wall of the waterproof testing device through a bearing;
and the locking frame is arranged in the test slot, and the inner side of the locking frame is provided with a rolling bearing body.
Preferably, the left side of the locking frame viewed from the front cross-sectional direction is provided with:
the driving rotating rod is rotatably connected with the locking frame through a bearing, the driving rotating rod is connected with 2 symmetrically arranged driven screw rods through a belt, and the 2 symmetrically arranged driven screw rods are rotatably connected with the locking frame through a bearing;
the outer side of the driven screw rod is in threaded connection with a locking plate, and the locking plate with an annular structure on the side view surface is made of rubber.
Preferably, the left side of the locking plate is provided with:
the sealing ring is connected to the locking plate in an adhering mode;
the bracing piece, and welded connection is in on the lockplate to 2 that the symmetry set up the left end portion of bracing piece all installs the adjusting block that the main section is trapezoidal.
Preferably, the inner side of the locking frame is further provided with:
the carriage release lever, it runs through the inside wall of locking frame to the main face of looking is "ten" font structure the carriage release lever passes through compression spring elastic connection and is in on the locking frame, 2 that the symmetry set up pressing close to of carriage release lever the limiting plate is all installed to the tip of the outside of antifriction bearing body.
Preferably, the locking frame is further provided with:
the limiting block is welded on the locking frame, the limiting block with a side section of a convex structure penetrates through the bottom side surface of the interior of the waterproof testing device, and the limiting block can slide left and right in the waterproof testing device;
the inside of stopper runs through and threaded connection has accommodate the lead screw, and accommodate the lead screw utilize the bearing with waterproof testing arrangement rotates and is connected.
Preferably, the waterproof testing device is further provided with:
the connecting channel is arranged in the waterproof testing device and located between the testing groove and the pressure regulating groove, and the upper end portion and the lower end portion of the connecting channel are communicated with the testing groove and the pressure regulating groove through an upper through hole and a lower through hole respectively.
Preferably, the movable rod and the adjusting block are arranged in a one-to-one correspondence manner, and the contact position between the movable rod and the adjusting block is of a smooth arc structure.
Preferably, the upper side of the piston body is provided with:
and the upper end of the piston rod penetrates through the upper side wall of the pressure regulating groove and is connected with the support plate in a welding mode, an electric telescopic rod is installed on the left lower portion of the support plate, and the support plate can vertically move above the waterproof testing device by utilizing the electric telescopic rod.
Compared with the prior art, the invention has the beneficial effects that: the waterproof performance dynamic test equipment applied to the rolling bearing manufacturing,
(1) the piston body is driven to move, the pressure regulating groove and the test groove are communicated with each other through the lower through hole, the connecting channel and the upper through hole, so that air flow transmission can be realized, the pressure in the test groove is regulated, the rolling bearing is subjected to waterproof performance test under different pressures, tests are diversified, and the accuracy of test results can be improved by multiple groups of test data;
(2) the drive initiative bull stick rotates, alright linkage driven screw rotates, the position to the locking plate is adjusted, distance between adjustment lockplate and the locking frame, utilize lockplate leakproofness locking antifriction bearing body, and when the lockplate removed, the drive regulating block drives the removal pole control limiting plate and removes, utilize the limiting plate to stabilize once more and lock antifriction bearing and guarantee antifriction bearing's central point and put the coincidence with the central point of locking frame, realize antifriction bearing's assembly fast, the simple operation nature is high, and remove the locking frame, adjust the distance between locking frame and the test bull stick, assemble antifriction bearing to the test bull stick, utilize the test bull stick developments to carry out waterproof test to antifriction bearing, the authenticity and the accuracy of antifriction bearing test are improved.
Drawings
FIG. 1 is a schematic view of the main sectional structure of the present invention;
FIG. 2 is a schematic view of a main sectional structure of a locking plate in a locked state according to the present invention;
FIG. 3 is a schematic view of a main sectional structure of the locking plate in an unlocked state according to the present invention;
FIG. 4 is a schematic top view of the present invention;
FIG. 5 is a schematic side sectional view of a stopper of the present invention;
FIG. 6 is an enlarged view of a portion a of FIG. 1 according to the present invention;
FIG. 7 is a schematic sectional view A-A of FIG. 2 according to the present invention.
In the figure: 1. a waterproof test device; 2. a test slot; 3. an upper through hole; 4. a connecting channel; 5. a lower through hole; 6. a pressure regulating groove; 7. a motor; 8. testing the rotating rod; 9. a locking frame; 10. a limiting block; 11. adjusting the screw rod; 12. a rolling bearing body; 13. an active rotating rod; 14. a driven screw rod; 15. a locking plate; 15.1, a sealing ring; 15.2, supporting rods; 15.3, an adjusting block; 16. a travel bar; 17. a compression spring; 18. a limiting plate; 19. a piston body; 20. a piston rod; 21. a support plate; 22. an electric telescopic rod.
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. 1-7, the present invention provides a technical solution: a waterproof performance dynamic test device applied to rolling bearing manufacturing comprises:
the waterproof testing device 1 is used for dynamically testing the waterproof performance of the rolling bearing, and a testing groove 2 is formed in the right inside of the waterproof testing device 1;
the pressure regulating groove 6 is formed in the left side of the waterproof testing device 1, and a piston body 19 is attached to the inside of the pressure regulating groove 6;
the motor 7 is fixed on the right side of the waterproof testing device 1 through bolts, the output end of the motor 7 is connected with the testing rotating rod 8, and the left end part of the testing rotating rod 8 penetrates through the right side wall of the waterproof testing device 1 and is rotatably connected with the right side wall of the waterproof testing device 1 through a bearing;
and a locking frame 9 disposed inside the test slot 2, wherein a rolling bearing body 12 is disposed inside the locking frame 9.
In this example, the lock frame 9 is provided on the left side thereof, as viewed in the front cross-sectional direction:
the driving rotating rod 13 is rotatably connected with the locking frame 9 through a bearing, the driving rotating rod 13 is connected with 2 symmetrically arranged driven screw rods 14 through a belt, and the 2 symmetrically arranged driven screw rods 14 are rotatably connected with the locking frame 9 through a bearing;
the locking plate 15 is connected to the outer side of the driven screw rod 14 through threads, the locking plate 15 with the annular structure on the side view surface is made of rubber, linkage between the driving rotating rod 13 and the symmetrically arranged 2 driven screw rods 14 can be achieved through the design, and the driven screw rods 14 are driven to rotate to move the locking plate 15.
The left side of the lock plate 15 is provided with:
a sealing ring 15.1 which is bonded to the locking plate 15;
the supporting rods 15.2 are connected to the locking plate 15 in a welding mode, and adjusting blocks 15.3 with trapezoidal main sections are mounted at the left end portions of the symmetrically arranged 2 supporting rods 15.2.
The inside of the locking frame 9 is also provided with:
the movable rod 16 penetrates through the inner side wall of the locking frame 9, the movable rod 16 with the cross-shaped structure in the main view surface is elastically connected to the locking frame 9 through a compression spring 17, limiting plates 18 are mounted at the end portions, close to the outer side of the rolling bearing body 12, of the 2 movable rods 16 which are symmetrically arranged, and the rolling bearing body 12 is limited and locked through the limiting plates 18 in the design, so that the rolling bearing body 12 is assembled.
The locking frame 9 is also provided with:
the limiting block 10 is connected to the locking frame 9 in a welding mode, the limiting block 10 with a side section in a convex structure penetrates through the bottom side face of the interior of the waterproof testing device 1, and the limiting block 10 can slide left and right in the waterproof testing device 1;
the inside of stopper 10 runs through and threaded connection has accommodate the lead screw 11 to accommodate the lead screw 11 utilizes the bearing to rotate with waterproof testing arrangement 1 and is connected, and the position of stopper 10 is adjusted to the usable accommodate the lead screw 11 of this design, thereby controls locking frame 9 and removes, regulates and control the distance between locking frame 9 and the test bull stick 8, assembles the outside of test bull stick 8 with antifriction bearing body 12.
The inside of waterproof testing arrangement 1 still is provided with:
and the connecting channel 4 is arranged in the waterproof testing device 1 and is connected with the testing groove 2 and the pressure regulating groove 6, and the upper end and the lower end of the connecting channel 4 are communicated with the testing groove 2 and the pressure regulating groove 6 through the upper through hole 3 and the lower through hole 5 respectively.
The positions of the moving rod 16 and the adjusting block 15.3 are arranged in a one-to-one correspondence mode, the contact position between the moving rod 16 and the adjusting block 15.3 is of a smooth arc-shaped structure, the friction force between the moving rod 16 and the adjusting block 15.3 can be reduced through the design, the moving rod 16 is controlled to move through the movement of the adjusting block 15.3, and the position of the moving rod 16 is adjusted.
The upper side of the piston body 19 is provided with:
the upper end of the piston rod 20 penetrates through the upper side wall of the pressure regulating groove 6 to be connected with the supporting plate 21 in a welding mode, the electric telescopic rod 22 is installed on the lower left side of the supporting plate 21, the supporting plate 21 can vertically move above the waterproof testing device 1 up and down through the electric telescopic rod 22, the piston body 19 can be controlled to move through the design, and the pressure in the testing groove 2 is regulated through the piston body 19.
The working principle is as follows: when the dynamic waterproof performance testing device applied to the rolling bearing manufacturing is used, firstly, a user firstly places the whole device shown in figure 1 into a working area stably, opens the sealing door, firstly assembles the rolling bearing body 12, combines the space between the locking frame 9 and the locking plate 15 shown in figure 3, moves the rolling bearing body 12 from the side to the middle position of the locking frame 9, then clamps the rolling bearing body 12 into the groove of the locking frame 9, rotates the driving rotating rod 13, the driving rotating rod 13 controls the driven screw rod 14 connected with a belt to rotate, the driven screw rod 14 controls the locking plate 15 in threaded connection to move, moves the locking plate 15 to the left, the sealing ring 15.1 is gradually and tightly jointed with the locking frame 9, and moves towards the direction of the locking frame 9 through the adjusting block 15.3 mutually connected with the locking plate 15 by the supporting rod 15.2 and is gradually contacted with the moving rod 16, the moving rod 16 is pushed, the moving rod 16 extrudes the compression spring 17, so that the compression spring 17 stores force, the moving rod 16 controls the limiting plate 18 to move towards the direction of attaching to the outer ring of the rolling bearing body 12, the rolling bearing body 12 is locked by the limiting plate 18, the rubber locking plate 15 and the sealing ring 15.1 further lock the rolling bearing body 12, the assembly tightness of the rolling bearing body 12 is ensured, the tightness detection of the rolling bearing body 12 is prevented from being influenced, after the assembly is completed, the adjusting screw rod 11 shown in figure 1 can be rotated, the adjusting screw rod 11 controls the limiting block 10 in threaded connection to move, as shown in figure 5, the side section of the limiting block 10 is in a convex structure, so that self-limiting can be carried out, the limiting block 10 is ensured to move horizontally in the waterproof testing device 1, and the limiting block 10 controls the locking frame 9 to move to the right in the direction of figure 1, tightly clamping the test rotating rod 8 and the inner ring of the rolling bearing body 12, and realizing the assembly of the rolling bearing body 12 as shown in figure 1;
conveying detection liquid into a test slot 2, switching on a power supply of an electric telescopic rod 22, controlling a support plate 21 to move upwards by the electric telescopic rod 22, controlling a piston rod 20 to move upwards by the support plate 21, driving a piston body 19 to move upwards by the piston rod 20, closing a sealing door, detecting the waterproofness of a rolling bearing body 12 at the moment, switching on a power supply of a motor 7, controlling the motor 7 to drive a test rotating rod 8 to rotate, controlling the rolling bearing body 12 to rotate by the test rotating rod 8, simulating the working state of the rolling bearing body 12, dynamically detecting the waterproofness of the rolling bearing body 12, enabling the front side of a waterproof testing device 1 to be in a transparent glass shape, observing the detection process, adjusting the pressure in the test slot 2 according to the detection time period during detection, continuously operating the electric telescopic rod 22, controlling the electric telescopic rod 22 to drive the support plate 21 to move downwards, and controlling the piston body 19 to move downwards, the method comprises the steps of conveying a lower through hole 5, a connecting channel 4 and an upper through hole 3 matched with gas in a pressure regulating groove 6 into a test groove 2, increasing the pressure in the test groove 2, testing the waterproof performance of a rolling bearing body 12 under different pressures, opening a sealing door only after the test is finished, reversely rotating a driving rotating rod 13, controlling a driven screw rod 14 connected with a belt to reversely rotate by the driving rotating rod 13, controlling a locking plate 15 to move rightwards, moving to the position shown in figure 3, releasing the sealing locking of the rolling bearing body 12 by the locking plate 15 and a sealing ring 15.1, releasing the limiting of a moving rod 16 by an adjusting block 15.3, controlling a moving rod 16 to reset by a compression spring 17, controlling a limiting plate 18 to reset by the moving rod 16, releasing the locking of the rolling bearing body 12 by the limiting plate 18, taking out the rolling bearing body 12, and assembling a new rolling bearing body 12 according to the steps, The above is the operation of the whole device, and the details not described in the present specification are prior art known to those skilled in the art.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (8)
1. The utility model provides a waterproof performance dynamic test equipment for antifriction bearing makes which characterized in that includes:
the waterproof testing device is used for dynamically testing the waterproof performance of the rolling bearing and is provided with a testing groove inside the right side;
the pressure regulating groove is formed in the left side of the waterproof testing device, and a piston body is attached to the inside of the pressure regulating groove;
the motor is fixed on the right side of the waterproof testing device through a bolt, the output end of the motor is connected with a testing rotating rod, and the left end part of the testing rotating rod penetrates through the right side wall of the waterproof testing device and is rotationally connected with the right side wall of the waterproof testing device through a bearing;
and the locking frame is arranged in the test slot, and the inner side of the locking frame is provided with a rolling bearing body.
2. The dynamic waterproof performance test equipment applied to rolling bearing manufacturing according to claim 1 is characterized in that, viewed from a front sectional direction, the left side of the locking frame is provided with:
the driving rotating rod is rotatably connected with the locking frame through a bearing, the driving rotating rod is connected with 2 symmetrically arranged driven screw rods through a belt, and the 2 symmetrically arranged driven screw rods are rotatably connected with the locking frame through a bearing;
the outer side of the driven screw rod is in threaded connection with a locking plate, and the locking plate with an annular structure on the side view surface is made of rubber.
3. The dynamic waterproof performance test equipment applied to rolling bearing manufacturing according to claim 2 is characterized in that the left side of the locking plate is provided with:
the sealing ring is connected to the locking plate in an adhering mode;
the bracing piece, and welded connection is in on the lockplate to 2 that the symmetry set up the left end portion of bracing piece all installs the adjusting block that the main section is trapezoidal.
4. The dynamic waterproof performance test equipment applied to rolling bearing manufacturing according to claim 3, wherein the inside of the locking frame is further provided with:
the carriage release lever, it runs through the inside wall of locking frame to the main face of looking is "ten" font structure the carriage release lever passes through compression spring elastic connection and is in on the locking frame, 2 that the symmetry set up pressing close to of carriage release lever the limiting plate is all installed to the tip of the outside of antifriction bearing body.
5. The dynamic waterproof performance test equipment applied to rolling bearing manufacturing according to claim 1 is characterized in that the locking frame is further provided with:
the limiting block is welded on the locking frame, the limiting block with a side section of a convex structure penetrates through the bottom side surface of the interior of the waterproof testing device, and the limiting block can slide left and right in the waterproof testing device;
the inside of stopper runs through and threaded connection has accommodate the lead screw, and accommodate the lead screw utilize the bearing with waterproof testing arrangement rotates and is connected.
6. The dynamic waterproof performance test equipment applied to rolling bearing manufacturing according to claim 1, wherein the inside of the waterproof test device is further provided with:
the connecting channel is arranged in the waterproof testing device and located between the testing groove and the pressure regulating groove, and the upper end portion and the lower end portion of the connecting channel are communicated with the testing groove and the pressure regulating groove through an upper through hole and a lower through hole respectively.
7. The dynamic waterproof performance testing equipment applied to rolling bearing manufacturing according to claim 4, wherein the moving rod and the adjusting block are arranged in a one-to-one correspondence manner, and the contact part between the moving rod and the adjusting block is of a smooth arc structure.
8. The dynamic test equipment for the waterproof performance applied to the manufacture of the rolling bearing according to claim 1, wherein the upper side of the piston body is provided with:
and the upper end of the piston rod penetrates through the upper side wall of the pressure regulating groove and is connected with the support plate in a welding mode, an electric telescopic rod is installed on the left lower portion of the support plate, and the support plate can vertically move above the waterproof testing device by utilizing the electric telescopic rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110773060.7A CN113654729A (en) | 2021-07-08 | 2021-07-08 | Waterproof performance dynamic test equipment applied to rolling bearing manufacturing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110773060.7A CN113654729A (en) | 2021-07-08 | 2021-07-08 | Waterproof performance dynamic test equipment applied to rolling bearing manufacturing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113654729A true CN113654729A (en) | 2021-11-16 |
Family
ID=78477185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110773060.7A Pending CN113654729A (en) | 2021-07-08 | 2021-07-08 | Waterproof performance dynamic test equipment applied to rolling bearing manufacturing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113654729A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116519299A (en) * | 2023-05-31 | 2023-08-01 | 苏州铁近机电科技股份有限公司 | Bearing auxiliary detection device |
-
2021
- 2021-07-08 CN CN202110773060.7A patent/CN113654729A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116519299A (en) * | 2023-05-31 | 2023-08-01 | 苏州铁近机电科技股份有限公司 | Bearing auxiliary detection device |
| CN116519299B (en) * | 2023-05-31 | 2023-10-17 | 苏州铁近机电科技股份有限公司 | Bearing auxiliary detection device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113654729A (en) | Waterproof performance dynamic test equipment applied to rolling bearing manufacturing | |
| CN106290116A (en) | A kind of barrier properties for gases test hold down gag and barrier properties for gases detection equipment | |
| CN113565833A (en) | Oil cylinder fatigue test machine | |
| CN116930039A (en) | Fabric ventilation detection device | |
| CN113414538B (en) | Welding device for water conservancy construction pipeline | |
| CN219121868U (en) | Pipeline resistance to compression detects uses plugging device | |
| CN114857296A (en) | Double-ball valve with self-locking protection function | |
| CN114658876B (en) | Ball valve with intelligent control system | |
| CN210863648U (en) | Multi-position automatic sample introduction device | |
| CN216051990U (en) | Novel durable test rack of car mouth that charges | |
| CN206095888U (en) | Gaseous separation nature is closing device and gaseous separation nature check out test set for test | |
| CN111879470A (en) | Metal sealing ring performance test machine | |
| CN214331572U (en) | Gas control valve of molecular sieve oxygen generating equipment | |
| CN217687780U (en) | Testing arrangement of elasticity of elastic ring | |
| CN207999287U (en) | A kind of novel steam turbine single-valve adjusting valve | |
| CN204565958U (en) | The frock clamping platform of bearing gas leakage checkout equipment | |
| CN219105251U (en) | Novel lens and pressing ring assembling device | |
| CN118067380B (en) | Cardiovascular implant radial expansion durability test system | |
| CN204228394U (en) | Small-sized force-bearing quick release lock life detecting device | |
| CN212300729U (en) | Metal sealing ring performance test machine | |
| CN219935561U (en) | Display assembly testing device | |
| CN218439638U (en) | Cable guiding device for wind power generation device | |
| CN214407549U (en) | Atmospheric environment monitoring device for different heights | |
| CN220568675U (en) | Microscopic detection device for wire harness terminal contact yield | |
| CN219857574U (en) | Deep water pressure control separation device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |