CN115200791B - Special pipe muffler gas tightness check out test set - Google Patents
Special pipe muffler gas tightness check out test set Download PDFInfo
- Publication number
- CN115200791B CN115200791B CN202210859761.7A CN202210859761A CN115200791B CN 115200791 B CN115200791 B CN 115200791B CN 202210859761 A CN202210859761 A CN 202210859761A CN 115200791 B CN115200791 B CN 115200791B
- Authority
- CN
- China
- Prior art keywords
- special pipe
- fixture block
- main body
- air inlet
- muffler
- 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
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
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/06—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing bubbles in a liquid pool
- G01M3/08—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing bubbles in a liquid pool for pipes, cables or tubes; for pipe joints or seals; for valves; for welds
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Exhaust Silencers (AREA)
Abstract
The invention discloses a special pipe silencer air tightness detection device, which relates to the technical field of special pipe silencer air tightness detection, and solves the technical problems that the detected special pipe silencers are different in bending degree, so that troubles are caused when the special pipe silencers with different bending degrees are detected, and the efficiency is low because the special pipe silencers are detected one by one; the fixture block subassembly of setting, the rotation that utilizes the handle drives the rotation of fixture block main part, thereby the detection that the mechanical tubes muffler that adapts to different bending degree brought is inconvenient, the rotation that utilizes the handle simultaneously drives being close to each other of two centre gripping subassemblies and carrying out the clamping action to the mechanical tubes muffler of placing, secondly come the correction that the suitable mechanical tubes muffler that is great to the bending degree carries out the angle through rotating the fixture block main part, thereby better coming carries out the detection of gas tightness to it, the spacing ball and the spacing groove that utilize to set up carry out limiting displacement to the mechanical tubes muffler.
Description
Technical Field
The invention belongs to the technical field of special pipe silencer air tightness detection, and particularly relates to special pipe silencer air tightness detection equipment.
Background
The special pipe silencer is a seamless steel pipe with various special shapes manufactured by cold drawing, is generally distinguished according to a broken section, and can be divided into a seamless steel pipe special pipe silencer, an aluminum alloy special pipe silencer and a plastic special pipe silencer according to materials.
When the conventional device detects the special pipe silencer, due to the fact that the detected special pipe silencers have different bending degrees, when the air tightness of different special pipe silencers is detected, troubles can be caused when the special pipe silencers are fixed due to the different bending degrees, further influences can be caused on the detection of the special pipe silencers, the special pipe silencers are usually detected one by one when being detected, the detection efficiency is low, and the air tightness of a plurality of special pipe silencers cannot be well detected.
Disclosure of Invention
The present invention is directed to at least solving the problems of the prior art; therefore, the invention provides equipment for detecting the air tightness of the special pipe silencer, which is used for solving the technical problems that the detection of the special pipe silencers with different bending degrees is troublesome and the efficiency is low because the detected special pipe silencers have different bending degrees.
In order to achieve the above object, an embodiment according to a first aspect of the present invention provides a device for detecting an air tightness of a special pipe silencer, including a baffle plate, a plurality of special pipe silencers are disposed on a top of the baffle plate, a plurality of fixture block assemblies are disposed on a top of the baffle plate, the fixture block assemblies are used for limiting the special pipe silencers, and meanwhile, the fixture block assemblies can adjust the special pipe silencers with a large bending degree, so as to meet a detection requirement;
the fixture block assembly comprises a fixture block main body, a threaded rod is rotatably connected below an inner cavity of the fixture block main body, threads on two sides of the surface of the threaded rod are reversely arranged, the threads which are oppositely arranged are convenient for moving the threaded sliders mutually, so that the support rods are used for clamping the special pipe silencer, the surface of the threaded rod is in threaded connection with the two threaded sliders, the top of each threaded slider is fixedly connected with the support rod, one side, close to each other, of each of the two support rods is provided with a clamping assembly, the clamping assembly penetrates through the inner wall of the fixture block main body, the bottom of the fixture block main body is provided with an installation seat through a transmission mechanism, the top of the installation seat is provided with a plurality of steel balls, the steel balls are connected with the bottom of the fixture block main body, and friction force generated in the rotation process of the installation seat is reduced by the steel balls.
Preferably, the centre gripping subassembly is including placing the board, one side of placing the board is provided with a plurality of spacing balls, the front side of spacing ball is provided with the connecting axle, and the connecting axle with place the board and rotate and be connected, the spacing groove has been seted up to one side of connecting axle, utilizes the spacing groove to come further spacing to the mechanical tubes muffler of centre gripping, avoids appearing slipping the condition at the in-process of centre gripping.
Preferably, the transmission mechanism comprises a rotating shaft, bevel gear sets are arranged on the rotating shaft and the threaded rod, the two bevel gear sets are meshed and connected with each other, and the bevel gear sets on the rotating shaft are driven to be meshed and connected in a transmission mode through the bevel gear sets on the threaded rod.
Preferably, one side of baffle is provided with two subassembly that admits air, utilizes the subassembly that admits air to come to carry out centralized processing with the gas that fills to again with gaseous dispersion emission, saved one and filled gas to the mechanical tubes muffler, easy operation is swift, can improve holistic inflation efficiency, the subassembly that admits air includes the subassembly main part that admits air, one side of the subassembly main part that admits air is provided with a plurality of blast pipes.
Preferably, it is a plurality of all be provided with the connecting piece in one side of blast pipe, utilize the connecting piece to improve the gas tightness of connecting, avoid causing the condition that causes gaseous leakage at the gas filled in-process, influence subsequent gas tightness and detect one side of admitting air subassembly main part is provided with the air inlet board, and the air inlet has been seted up to the inside of air inlet board.
Preferably, the connecting piece comprises a connecting piece main body, and a sealing rubber sheet is arranged inside the connecting piece main body.
Preferably, a plurality of through holes are formed in the top of the baffle, a plurality of sealing seats are arranged on the top of the baffle, the through holes are used for facilitating integral water entering, and the sealing seats are used for sealing the other side of the special pipe silencer.
1. Compared with the prior art, the invention has the beneficial effects that: the fixture block subassembly through setting up, the rotation that utilizes the handle drives the rotation of fixture block main part, thereby it is inconvenient to adapt to the detection that the mechanical tubes muffler of different bending degrees brought, the rotation that utilizes the handle simultaneously drives being close to each other of two centre gripping subassemblies and carrying out the clamping action to the mechanical tubes muffler of placing, secondly come the appropriate mechanical tubes muffler to the great mechanical tubes muffler of bending degree through rotating the fixture block main part and carry out the correction of angle, thereby better coming to carry out the measuring of gas tightness to it, spacing ball and the spacing groove that utilize to set up come to carry out limiting displacement to the mechanical tubes muffler, the protection pad that also utilizes spacing groove one side to set up simultaneously protects the mechanical tubes muffler, avoid causing the condition that the mechanical tubes muffler damaged in the in-process to the mechanical tubes muffler centre gripping.
2. Compared with the prior art, the invention has the beneficial effects that: through the subassembly that admits air that sets up, a plurality of blast pipes that utilize subassembly main part one side that admits air to set up come to carry out the gas tightness simultaneously to a plurality of mechanical tubes muffler and detect, easy operation is swift, improves the efficiency that detects simultaneously, utilizes the stripper rubber that sets up to come to seal the processing with the place of mechanical tubes muffler contact, thereby guarantees can not cause gaseous leakage to lead to the inaccuracy of testing result to the inflated in-process of mechanical tubes muffler.
Drawings
FIG. 1 is an overall schematic view of the present invention;
FIG. 2 is a cross-sectional view of the cartridge assembly of the present invention;
FIG. 3 is a schematic view of a clamping assembly of the present invention;
FIG. 4 is a schematic view of a stop ball according to the present invention;
FIG. 5 is a schematic view of an air intake assembly of the present invention;
fig. 6 is a schematic view of a connector of the present invention.
Reference numerals: 1. a baffle plate; 2. a special pipe silencer; 3. a fixture block assembly; 31. a fixture block main body; 32. a threaded rod; 33. a threaded slider; 34. a support bar; 35. a clamping assembly; 351. placing a plate; 352. a limiting ball; 353. a connecting shaft; 354. a limiting groove; 36. a rotating shaft; 37. a bevel gear set; 38. a mounting seat; 39. steel balls; 310. a handle; 4. an air intake assembly; 41. an intake assembly main body; 42. an exhaust pipe; 43. a connecting member; 431. a connector body; 432. sealing rubber sheets; 44. an air intake plate; 45. an air inlet; 5. a through hole; 6. and (4) a sealing seat.
Detailed Description
The technical solutions of the present invention will be described below clearly and completely in conjunction with the embodiments, 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 obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Example one
Referring to fig. 1 to 4, the application provides a special pipe silencer air tightness detection device, which includes a baffle plate 1, a plurality of special pipe silencers 2 are disposed on the top of the baffle plate 1, a plurality of fixture block assemblies 3 are disposed on the top of the baffle plate 1, the fixture block assemblies 3 are used for limiting the special pipe silencers 2, and meanwhile, the fixture block assemblies 3 can adjust the special pipe silencers 2 with a large bending degree, so as to meet the detection requirement;
the fixture block assembly 3 comprises a fixture block body 31, a threaded rod 32 is rotatably connected below an inner cavity of the fixture block body 31, threads on two sides of the surface of the threaded rod 32 are oppositely arranged, the oppositely arranged threads facilitate mutual movement of the threaded sliders 33, so that the support rod 34 is used for clamping the special pipe silencer 2, the surface of the threaded rod 32 is in threaded connection with the two threaded sliders 33, the top of each threaded slider 33 is fixedly connected with the support rod 34, one side of each support rod 34, which is close to each other, is provided with a clamping assembly 35, the clamping assembly 35 comprises a placing plate 351, one side of the placing plate 351 is provided with a plurality of limiting balls 352, the front side of each limiting ball 352 is provided with a connecting shaft 353, the connecting shaft 353 is rotatably connected with the placing plate 351, one side of the connecting shaft 353 is provided with a limiting groove 354, the limiting groove 354 is used for further limiting the clamped special pipe silencer 2, the slipping phenomenon in the clamping process is avoided, the clamping component 35 penetrates through the inner wall of the fixture block main body 31, the bottom of the fixture block main body 31 is provided with a mounting seat 38 through a transmission mechanism, the transmission mechanism comprises a rotating shaft 36, bevel gear sets 37 are arranged on the rotating shaft 36 and a threaded rod 32, the two bevel gear sets 37 are meshed and connected with each other, the bevel gear set 37 on the rotating shaft 36 is driven to be meshed and connected through the bevel gear set 37 on the threaded rod 32, the top of the mounting seat 38 is provided with a plurality of steel balls 39, the steel balls 39 are mutually connected with the bottom of the fixture block main body 31, the steel balls 39 are used for reducing the friction force generated in the rotating process of the mounting seat 38, the rotation of the fixture block main body 31 is driven through the rotation of the handle 310 through the arranged fixture block component 3, so that the inconvenience in detection brought by the special pipe silencers 2 with different bending degrees is adapted, meanwhile, the rotation of the handle 310 is utilized to drive the two clamping assemblies 35 to approach each other so as to clamp the placed special pipe silencer 2, then the fixture block main body 31 is rotated to properly correct the angle of the special pipe silencer 2 with large bending degree, so that the air tightness of the special pipe silencer is better detected, the limiting ball 352 and the limiting groove 354 are utilized to limit the special pipe silencer 2, meanwhile, the protection pad arranged on one side of the limiting groove 354 is utilized to protect the special pipe silencer 2, and the condition that the special pipe silencer 2 is damaged in the clamping process of the special pipe silencer 2 is avoided.
Example two
Please refer to fig. 1, 5 and 6, the present application provides an apparatus for detecting airtightness of a silencer of a special pipe, wherein two air inlet assemblies 4 are disposed on one side of a baffle 1, a plurality of through holes 5 are disposed on a top of the baffle 1, a plurality of sealing seats 6 are disposed on the top of the baffle 1, the through holes 5 are used for facilitating integral water entry, the sealing seats 6 are used for sealing the other side of the silencer of the special pipe 2, the air inlet assemblies 4 are used for centralized processing of the charged air, thereby dispersing and discharging the air, one-by-one charging of the silencer 2 is omitted, the operation is simple and fast, the overall charging efficiency can be improved, the air inlet assembly 4 includes an air inlet assembly main body 41, a plurality of exhaust pipes 42 are disposed on one side of the air inlet assembly main body 41, a connecting member 43 is disposed on one side of each exhaust pipe 42, the connecting member 43 includes a connecting member main body 431, a sealing rubber 432 is disposed inside the connecting member main body 431, the connecting member 43 is used for improving the airtightness of the connection, thereby preventing the occurrence of gas leakage in the process of gas leakage caused by the air inlet assembly 41, the subsequent air tightness detection of the special pipe 41 is provided with an air inlet plate 44, the special pipe silencer assembly 44, the simple and the detection of the multiple silencer 2, the simple and fast detection of the special pipe 4, the detection can be ensured by the detection of the multiple air inlet pipe 4, and the detection.
The working principle of the invention is as follows:
the method comprises the following steps: firstly, the special pipe silencers 2 are orderly arranged on the top of the baffle plate 1, then the fixture block assembly 3 is used for limiting the special pipe silencers 2, one side of each special pipe silencer 2 is connected with the air inlet plate 44 after the fixture block assembly 3 is used for limiting, and the other side of each special pipe silencer is connected with the sealing seat 6.
Step two: if the problem that the special pipe silencer 2 cannot be placed due to the influence of the bending degree of the special pipe silencer 2 occurs in the process of installing the special pipe silencer 2, the handle 310 is rotated to drive the threaded rod 32 to rotate, the bevel gear set 37 is further driven to rotate, and therefore the rotating shaft 36 is driven to rotate to adjust the overall position of the clamping block main body 31, and the influence caused by different bending degrees is adapted.
Step three: the handle 310 drives the screw slider 33 to move in the rotating process so as to clamp the mechanical tubes silencer 2 placed in the middle of the fixture block main body 31, the mechanical tubes silencer 2 with a large bending degree can be properly corrected in the clamping process of the mechanical tubes silencer 2, meanwhile, the clamping assembly 35 is used for limiting the mechanical tubes silencer 2 to be placed, and slipping is avoided in the clamping process.
Step four: after the preparation work is finished, the air inlet plate 44 and the air inlet 45 are used for inflating the air inlet assembly main body 41, so that the inflated air can disperse and fill the inflated air into the multiple special pipe silencers 2 under the action of the exhaust pipes 42 and the connecting pieces 43, and the air is closed after the air filling is finished, and the next work is continued.
Step five: the special pipe silencer 2 filled with gas is placed in antirust water to detect the gas tightness of the special pipe silencer, the baffle 1 is sunk through the through holes 5 formed in the top of the baffle 1, so that the gas tightness of the special pipe silencer 2 is observed in water, and the gas tightness of the special pipe silencer 2 is detected by observing whether bubbles are generated at the position of the special pipe silencer 2 in water.
Although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the present invention.
Claims (1)
1. The air tightness detection equipment for the special pipe silencers comprises a baffle, wherein a plurality of special pipe silencers are arranged at the top of the baffle;
the fixture block assembly comprises a fixture block main body, a threaded rod is arranged below an inner cavity of the fixture block main body, two threaded sliding blocks are arranged on the surface of the threaded rod, supporting rods are arranged at the tops of the threaded sliding blocks, clamping assemblies are arranged on the sides, close to each other, of the two supporting rods, an installation seat is arranged at the bottom of the fixture block main body through a transmission mechanism, and a plurality of steel balls are arranged at the top of the installation seat;
the clamping assembly comprises a placing plate, a plurality of limiting balls are arranged on one side of the placing plate, a connecting shaft is arranged on one side of each limiting ball, the connecting shaft and the placing plate are connected with each other, and a limiting groove is formed in one side of the connecting shaft;
the transmission mechanism comprises a rotating shaft, bevel gear sets are arranged on the rotating shaft and the threaded rod, and the two bevel gear sets are mutually connected;
two air inlet assemblies are arranged on one side of the baffle plate, each air inlet assembly comprises an air inlet assembly main body, and a plurality of exhaust pipes are arranged on one side of each air inlet assembly main body;
one side of each exhaust pipe is provided with a connecting piece, one side of the air inlet component main body is provided with an air inlet plate, and an air inlet is formed in the air inlet plate;
the connecting piece comprises a connecting piece main body, and a sealing rubber sheet is arranged inside the connecting piece main body;
the top of the baffle is provided with a plurality of through holes, and the top of the baffle is provided with a plurality of sealing seats;
when installing the mechanical tubes muffler, drive the rotation of threaded rod through rotating the handle, further drive bevel gear group's rotation to the rotation that drives the axis of rotation comes to carry out the adjustment of overall position to the fixture block main part, makes to carry out the correction of angle to the mechanical tubes of different bending degrees, and the handle drives the removal of screw slider at the pivoted in-process and from coming to place the mechanical tubes muffler in the middle of the fixture block main part and carry out the centre gripping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210859761.7A CN115200791B (en) | 2022-07-20 | 2022-07-20 | Special pipe muffler gas tightness check out test set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210859761.7A CN115200791B (en) | 2022-07-20 | 2022-07-20 | Special pipe muffler gas tightness check out test set |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115200791A CN115200791A (en) | 2022-10-18 |
| CN115200791B true CN115200791B (en) | 2023-03-14 |
Family
ID=83583942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210859761.7A Active CN115200791B (en) | 2022-07-20 | 2022-07-20 | Special pipe muffler gas tightness check out test set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115200791B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209198007U (en) * | 2018-11-28 | 2019-08-02 | 盛安(苏州)汽车部件有限公司 | A kind of muffler finished product detection workbench |
| CN111947839A (en) * | 2020-08-05 | 2020-11-17 | 十堰五龙工贸股份有限公司 | Silencer intake pipe gas tightness detection device |
| WO2021047744A1 (en) * | 2019-09-13 | 2021-03-18 | Iop Marine A/S | Test unit and method for testing an inlet-outlet valve |
| CN213627786U (en) * | 2020-12-04 | 2021-07-06 | 南昌华东蓝天发电设备有限公司 | Efficient noise elimination device of diesel generator |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9309842B2 (en) * | 2013-02-07 | 2016-04-12 | General Electric Company | Air inlet silencer for turbomachines |
| CN212254480U (en) * | 2020-08-05 | 2020-12-29 | 十堰五龙工贸股份有限公司 | Silencer intake pipe gas tightness detection device |
| CN215217938U (en) * | 2021-06-15 | 2021-12-17 | 重庆凯罗尔机械股份有限公司 | Gas tightness detection device for silencer of internal combustion engine |
-
2022
- 2022-07-20 CN CN202210859761.7A patent/CN115200791B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209198007U (en) * | 2018-11-28 | 2019-08-02 | 盛安(苏州)汽车部件有限公司 | A kind of muffler finished product detection workbench |
| WO2021047744A1 (en) * | 2019-09-13 | 2021-03-18 | Iop Marine A/S | Test unit and method for testing an inlet-outlet valve |
| CN111947839A (en) * | 2020-08-05 | 2020-11-17 | 十堰五龙工贸股份有限公司 | Silencer intake pipe gas tightness detection device |
| CN213627786U (en) * | 2020-12-04 | 2021-07-06 | 南昌华东蓝天发电设备有限公司 | Efficient noise elimination device of diesel generator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115200791A (en) | 2022-10-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114486101B (en) | Pressure pipeline detection device convenient to operate and application method thereof | |
| CN115200791B (en) | Special pipe muffler gas tightness check out test set | |
| CN111289193B (en) | Valve gas tightness quality inspection equipment | |
| CN114858610A (en) | Whole ring resistance to compression testing arrangement of section of jurisdiction | |
| CN117019951A (en) | Automobile pipeline bending equipment | |
| CN209446219U (en) | A kind of detecting tool for sebific duct sealing propertytest | |
| CN116358792A (en) | Device and method for detecting air tightness of oil way hydraulic element | |
| CN210108617U (en) | Pneumatic bypass valve detection platform | |
| CN111750811A (en) | Pipeline inspection tool and air tightness testing device thereof | |
| CN112326129A (en) | From air suction formula flange gas tightness detection device in batches | |
| CN207521998U (en) | A kind of vehicle dormer window assembling and detection device | |
| CN216051167U (en) | Toughness testing device | |
| CN221037892U (en) | Pipe section air pressure detection device | |
| CN220120321U (en) | Pressure pipeline air tightness detection device for constructional engineering | |
| CN110487231A (en) | A kind of trident bearing combination detection device | |
| CN117606403B (en) | Detection device for wall thickness deviation of carbon fiber composite material pipeline | |
| CN212363143U (en) | Pipeline inspection tool and air tightness testing device thereof | |
| CN218393769U (en) | Supercritical valve hydrostatic test platform | |
| CN212254470U (en) | Air tightness testing machine | |
| CN214603879U (en) | Detect and control lid subassembly gas tightness anchor clamps | |
| CN217637807U (en) | Nuclear power plant containment wall coating sealing test device | |
| CN218895901U (en) | Workpiece sealing detection equipment | |
| CN217424675U (en) | Ultrahigh pressure gas cylinder airtightness detection device | |
| CN220854163U (en) | Safety valve pressure detection device | |
| CN213121466U (en) | Automatic test table for bending life of stainless steel corrugated pipe |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A Gas Tightness Testing Equipment for Specially Shaped Pipe Silencers Effective date of registration: 20230907 Granted publication date: 20230314 Pledgee: Anhui Ma'anshan Rural Commercial Bank Co.,Ltd. Pledgor: ANHUI ZHONGHUI REFRIGERATION Co.,Ltd. Registration number: Y2023980055769 |