CN103244657A - Vent cap - Google Patents

Vent cap Download PDF

Info

Publication number
CN103244657A
CN103244657A CN2012100271682A CN201210027168A CN103244657A CN 103244657 A CN103244657 A CN 103244657A CN 2012100271682 A CN2012100271682 A CN 2012100271682A CN 201210027168 A CN201210027168 A CN 201210027168A CN 103244657 A CN103244657 A CN 103244657A
Authority
CN
China
Prior art keywords
vent
abat
closeouts
main body
speed reducer
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.)
Granted
Application number
CN2012100271682A
Other languages
Chinese (zh)
Other versions
CN103244657B (en
Inventor
胡炜
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WARD TRANSMISSION TECHNOLOGY (TIANJIN) Co.,Ltd.
Original Assignee
WORLD TRANSMISSION TECHNOLOGY (TIANJIN) Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by WORLD TRANSMISSION TECHNOLOGY (TIANJIN) Co Ltd filed Critical WORLD TRANSMISSION TECHNOLOGY (TIANJIN) Co Ltd
Priority to CN201210027168.2A priority Critical patent/CN103244657B/en
Publication of CN103244657A publication Critical patent/CN103244657A/en
Application granted granted Critical
Publication of CN103244657B publication Critical patent/CN103244657B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • General Details Of Gearings (AREA)

Abstract

The invention discloses a vent cap which comprises a vent cap main body, a first plugging piece, a second plugging piece and a resetting component. An air inlet and an air outlet which are communicated with each other are arranged on the vent cap main body, the air inlet is communicated with a vent of a reducer, the first plugging piece seals the air inlet, the second plugging piece seals the air outlet, and the resetting component is connected with the first plugging piece. The resetting component can provide resetting force for the first plugging piece, when the pressure in the reducer exceeds force exerted on the first plugging piece by the resetting component, the first plugging piece is ejected, and air in the reducer is guided out. When the pressure in the reducer is reduced, the first plugging piece and the second plugging piece are reset to seal the air inlet and the air outlet again. By means of the structural design, the vent cap can conduct pressure adjustment on the reducer, and a purpose of solving the problem that the vent cap is easy to damage in severe working condition environment is achieved.

Description

A kind of abat-vent
Technical field
The present invention relates to the valve part technical field of fluid circulation, particularly a kind of abat-vent.
Background technique
In the prior art, some have the equipment of the motion of running up, speed reducer etc. for example, and its internal gas can produce bigger proterties to be changed, and is the example explanation below with the speed reducer.
Speed reducer is that a kind of power is passed on mechanism, utilizes the velocity transducer of gear, the winding number of motor (motor) is decelerated to desired winding number, and obtain the mechanism of big torque.Speed reducer generally is used for motor, internal-combustion engine or other equipment of running up are slowed down, because motor or internal-combustion engine have high rotational speed, so speed reducer also will have high rotational speed.As a kind of general knowledge, speed reducer is under off working state (static), and the complete machine temperature of speed reducer and ambient air temperature approach, and this moment, the complete machine temperature of speed reducer was lower.When speed reducer enters into working state (running), owing to the reasons such as friction between the speed reducer parts, will make the complete machine temperature of speed reducer raise fast.The temperature variation of speed reducer will cause the speed reducer pressure inside to change, and speed reducer is being transferred under the static low temperature under the running high temperature, and the air in the speed reducer makes the speed reducer internal pressure raise because the effect of expanding with heat and contract with cold will be expanded.
The potential safety hazard of bringing for fear of above-mentioned speed reducer internal pressure rising, speed reducer generally speaking all is equipped with the abat-vent of keeping the speed reducer internal and external pressure balance for the speed reducer ventilation.Typical abat-vent is installed on the ventilating hole of speed reducer in a kind of prior art, enters into speed reducer for fear of the impurity such as dust in the external world by abat-vent, is provided with in the abat-vent for the filter screen that gas is filtered.Under the working condition under the coal mine, there are particle and dust more, through regular meeting the situation that coal cinder clashes into speed reducer appears, in case the hit abat-vent of coal cinder because filter screen structure makes that simply its structural strength is lower, is very easy to cause the destruction of filter screen.
In sum, how to solve abat-vent, especially be applied to the problem that abat-vent in the operating mode rugged environment causes damage easily, become those skilled in the art's problem demanding prompt solution.
Summary of the invention
The technical problem to be solved in the present invention is for providing a kind of abat-vent, and this abat-vent can realize solving abat-vent by its structural design, especially is applied to the purpose that abat-vent in the operating mode rugged environment causes the damage problem easily.
For solving the problems of the technologies described above, the invention provides a kind of abat-vent, be used for that speed reducer is carried out pressure and regulate, comprising:
Be arranged on the vent of described speed reducer and the abat-vent main body that is connected with described speed reducer, offer the suction port and the air outlet that are interconnected and are used for gas communication on the described abat-vent main body, described suction port is connected with the vent of described speed reducer;
Seal first closeouts of described suction port;
With second closeouts that described first closeouts is connected and seals described air outlet, described first closeouts and described second closeouts are connected on the described abat-vent main body movably;
Described first closeouts and described second closeouts are resetted, and the reset components that is connected with described first closeouts.
Preferably, offer positioning pin hole on the described abat-vent main body, described second closeouts is provided with locating stud, and described locating stud is inserted in the described positioning pin hole.
Preferably, described positioning pin hole is no less than two, and whole described positioning pin holes is symmetrically distributed on the described abat-vent main body.
Preferably, described first closeouts is tapered needle valve, and the little head end of described tapered needle valve is inserted in the described inlet hole and seals described inlet hole.
Preferably, the present invention also comprises connecting rod, and the two ends of described connecting rod are connected with described second closeouts with described first closeouts respectively.
Preferably, described reset components is spring, and described spring housing is located on the described connecting rod, and an end of described spring is connected with described first closeouts, and the other end of described spring is connected with described abat-vent main body.
Preferably, the air outlet of described abat-vent main body place is the annular groove-shaped structure, and described second closeouts is inserted in the described annular groove-shaped structure, and has gap for gas communication with the sidewall of described annular groove-shaped structure.
Preferably, described abat-vent main body is provided with the air inlet frame, and described suction port is opened on the described air inlet frame.
Preferably, described air inlet frame is threaded with described abat-vent main body.
Preferably, described abat-vent main body is threaded with described speed reducer.
The invention provides a kind of abat-vent, be mainly used in that speed reducer is carried out pressure and regulate, comprising: abat-vent main body, first closeouts, second closeouts and reset components.Offer the suction port and the air outlet that are interconnected on the abat-vent main body, suction port is connected with the vent of speed reducer.Suction port is used for when the speed reducer internal pressure raises, gas in the speed reducer enters into the abat-vent main body by suction port, because suction port and air outlet are interconnected, therefore the gas in the abat-vent main body can flow out abat-vent by the air outlet, thereby the gas in the speed reducer is exported to the speed reducer outside, realize the decompression purpose to speed reducer.In order to realize that the present invention regulates the pressure of speed reducer under certain pressure, structural design of the present invention is: first closeouts sealing suction port, and second closeouts sealing air outlet, reset components is connected with first closeouts.First closeouts is connected with second closeouts, and first closeouts and second closeouts be connected on the abat-vent main body movably, and reset components can provide a restoring force to first closeouts, and this restoring force can withstand first closeouts.When the speed reducer internal pressure raise, when this pressure surpassed reset components and acts on power on first closeouts, first closeouts will be backed down, thereby realizes opening and the gas in the speed reducer being derived of abat-vent upper vent, and speed reducer is carried out step-down.After the internal pressure of speed reducer reduces, when this pressure acts on power on first closeouts less than reset components, first closeouts and second closeouts will reset and seal suction port and air outlet again.Abat-vent provided by the invention can be realized the pressure of speed reducer is regulated by the said structure design, and at the place, air outlet second closeouts is set, and can avoid the speed reducer foreign matter, and for example the cinder in coal mine enters in the speed reducer.In the present invention, the parts that constitute abat-vent all have higher structural strength and (are different from filter screen, cancellated structural strength is lower), in assurance speed reducer is carried out under the pressure controlled prerequisite, realize solving the purpose that the abat-vent of abat-vent in the operating mode rugged environment causes the damage problem easily.
Description of drawings
Please refer to Fig. 1, Fig. 1 is the structural representation of abat-vent in an embodiment of the present invention;
The corresponding relation of component names and reference character is among Fig. 1:
Abat-vent main body 1; Suction port 1a; Air outlet 1b; Positioning pin hole 1c;
First closeouts 2;
Second closeouts 3; Locating stud 31;
Reset components 4;
Connecting rod 5;
Air inlet frame 6.
Embodiment
Core of the present invention is for providing a kind of abat-vent, and this abat-vent can realize solving abat-vent by its structural design, especially is applied to the purpose that abat-vent in the operating mode rugged environment causes the damage problem easily.
In order to make those skilled in the art understand technological scheme of the present invention better, the present invention is described in further detail below in conjunction with the drawings and specific embodiments.
Please refer to Fig. 1, Fig. 1 is the structural representation of abat-vent in an embodiment of the present invention.
The invention provides a kind of abat-vent, be mainly used in that speed reducer is carried out pressure and regulate, comprising: abat-vent main body 1, first closeouts 2, second closeouts 3 and reset components 4.Offer the suction port 1a and the air outlet 1b that are interconnected on the abat-vent main body 1, suction port 1a is connected with the vent of speed reducer.Suction port 1a is used for when the speed reducer internal pressure raises, gas in the speed reducer enters into abat-vent main body 1 by suction port 1a, because suction port 1a and air outlet 1b are interconnected, therefore the gas in the abat-vent main body 1 can flow out abat-vent by air outlet 1b, thereby the gas in the speed reducer is exported to the speed reducer outside, realize the decompression purpose to speed reducer.In order to realize that the present invention regulates the pressure of speed reducer under certain pressure, structural design of the present invention is: first closeouts, 2 sealing suction port 1a, and second closeouts, 3 sealing air outlet 1b, reset components 4 is connected with first closeouts 2.First closeouts 2 is connected with second closeouts 3, and first closeouts 2 and second closeouts 3 be connected on the abat-vent main body 1 movably, and reset components 4 can provide a restoring force to first closeouts 2, and this restoring force can withstand first closeouts 2.When the speed reducer internal pressure raise, when this pressure surpassed reset components 4 and acts on power on first closeouts 2, first closeouts 2 will be backed down, thereby realizes opening and the gas in the speed reducer being derived of abat-vent upper vent, and speed reducer is carried out step-down.After the internal pressure of speed reducer reduced, when this pressure acted on power on first closeouts 2 less than reset components 4, first closeouts 2 and second closeouts 3 resetted, and seal suction port 1a and air outlet 1b again.Abat-vent provided by the invention can be realized the pressure of speed reducer is regulated by the said structure design, and at air outlet 1b place second closeouts 3 is set, and can avoid the speed reducer foreign matter, and for example the cinder in coal mine enters in the speed reducer.In the present invention, the parts that constitute abat-vent all have higher structural strength and (are different from filter screen, cancellated structural strength is lower), in assurance speed reducer is carried out under the pressure controlled prerequisite, realize the solution abat-vent, especially be applied to the purpose that abat-vent in the operating mode rugged environment causes the damage problem easily.
From the above, first closeouts 2 and second closeouts 3 are mobilizable parts, by with abat-vent main body 1 between relative movable to realize opening or closing of suction port 1a and air outlet 1b, reach the adjusting (pressure release) to the speed reducer internal pressure.Especially second closeouts 3, when second closeouts 3 moves when opening air outlet 1b, 3 external lateral portion that can be positioned at abat-vent main body 1 of second closeouts, this structure makes second closeouts 3 in the skew of back occurrence positions that resets easily.Change in location after resetting for fear of second closeouts 3, the present invention has made following structural design in an embodiment: at abat-vent main body 1 beginning positioning pin hole 1c, the locating stud 31 that cooperates with positioning pin hole 1c is set on second closeouts 3, and locating stud 31 is inserted among the positioning pin hole 1c.Positioning pin hole 1c is arranged on the abat-vent main body 1, locating stud 31 is inserted among the positioning pin hole 1c, this structural design can be carried out spacing to second closeouts 3, this spacing axial limiting that is mainly second closeouts 3 does not rotate it, thereby makes second closeouts 3 only can move in the limited range of locating stud 31.And because first closeouts 2 is connected with second closeouts 3, after second closeouts 3 was spacing, first closeouts 2 also can be subjected to corresponding position and limit.
Based on above-described embodiment, locating stud 31 also has as next function, and second closeouts 3 is forever opened.According to the structure of above-mentioned abat-vent as can be known, offer positioning pin hole 1c at abat-vent, the surrounding structure of positioning pin hole 1c all can be designed to entity structure (owing to being the structural strength that entity structure can guarantee positioning pin hole 1c) generally speaking so.When artificially second closeouts 3 being lifted, make locating stud 31 break away from positioning pin hole 1c, then in rotation second closeouts 3, second closeouts 3 is in reseting procedure, locating stud 31 is positioned on the peripheral entity structure of positioning pin hole 1c, and the suction port 1a of abat-vent and air outlet 1b all are in the state of forever opening in this state.Said structure design is applicable to the long-term operation of speed reducer under mine, and the suction port 1a of abat-vent and air outlet 1b forever open the smooth and easy of the gas communication that can guarantee in the speed reducer.
Particularly, in a specific embodiment of the present invention, positioning pin hole 1c is no less than two, and whole positioning pin hole 1c is symmetrically distributed on the abat-vent main body 1.
Because the present invention does not take filter screen that the gas that circulates in the speed reducer is filtered, therefore, impurity (for example cinder etc.) for fear of the external world enters into speed reducer, and the present invention is especially with the size greater than air outlet 1b of being designed and sized to of second closeouts 3.This structural design is not only in order to guarantee that second closeouts 3 can realize the sealing to air outlet 1b, can also make second closeouts 3 form a kind of umbrella-shaped structure under the state of opening air outlet 1b, prevents that effectively introduced contaminants from entering into speed reducer.
In a specific embodiment of the present invention, first closeouts 2 adopts tapered needle valve, and the little head end of tapered needle valve is inserted in the inlet hole and seals described inlet hole.In the prior art, the needle structure that most valve type parts are used is tapered needle valve, the needle of cone structure not only can seal opening class formation (being suction port 1a in the present invention) comparatively closely, can also realize unidirectional conducting, make fluid only can enter from the microcephaly's extreme direction towards needle.
Particularly, owing to have certain spacing between the suction port 1a of abat-vent and the air outlet 1b, therefore also has certain spacing between first closeouts 2 and second closeouts 3, in order to realize being connected between first closeouts 2 and second closeouts 3, the invention provides connecting rod 5, the two ends of connecting rod 5 are connected with second closeouts 3 with first closeouts 2 respectively.
Because reset components 4 resets to first closeouts 2 and second closeouts 3, therefore need reset components 4 taking place to have return action after the deformation, for example spring.Therefore, based on above-described embodiment, in a specific embodiment of the present invention, reset components 4 is spring.When adopting spring as to the reset components 4 of first closeouts 2 and second closeouts 3 time, spring housing is located on the connecting rod 5, and an end of spring is connected with first closeouts 2, and the other end of spring is connected with abat-vent main body 1.Suction port 1a (this moment, air outlet 1b was opened in 3 motions of second closeouts), the compressed generation deformation of spring are opened in 2 motions of first closeouts.Reset components 4 is connected with first closeouts 2, when deformation takes place reset components 4, will produce the thrust that resets to first closeouts 2, when this thrust that resets during greater than the speed reducer internal pressure, first closeouts 2 resets under the effect of reset components 4 and seals suction port 1a (second closeouts 3 resetted and sealed air outlet 1b again this moment) again.Certainly, some other the parts with return action also can be applied among the present invention, for example bellows.
From the above, enter into speed reducer for fear of the impurity (cinder) in the external world, second closeouts 3 adopts its sizes to design greater than air outlet 1b dimensional structure.When the size of second closeouts 3 during greater than the size of air outlet 1b, second closeouts, 3 sealing air outlet 1b will be positioned at the outside of abat-vent, form a kind of structure of comparatively protruding, and the bump that is subjected to the outside easily causes damage.In order to address the above problem, the present invention has made following structural design to abat-vent: the 1b place, air outlet of abat-vent main body 1 is the annular groove-shaped structure, second closeouts 3 is inserted in the annular groove-shaped structure, and has gap for gas communication with the sidewall of annular groove-shaped structure.Because 1b place, air outlet is the annular groove-shaped structure, therefore can be when second closeouts, 3 sealing air outlet 1b, second closeouts 3 is placed in this annular groove-shaped structure, the structure of second closeouts, 3 projectioies therefore can not occur, has reduced second closeouts 3 and has damaged.
Particularly, abat-vent main body 1 is provided with air inlet frame 6, offers inlet hole on the air inlet frame 6.This structural design not only is convenient to assembling of the present invention, can also be at suction port 1a owing to using the maintenance of being convenient to abat-vent when being damaged for a long time.And, when suction port 1a damages, only need to change air inlet frame 6 and just can make reusing of abat-vent, the working life of having improved other parts of abat-vent.
Particularly, air inlet frame 6 is threaded with abat-vent main body 1.Employing is threaded and not only can guarantees reliable connection between air inlet frame 6 and the abat-vent also to be convenient to the dismounting of air inlet frame 6.
Adopt the effect be threaded identical with above-described embodiment, abat-vent main body 1 is threaded with speed reducer, not only can make to have reliable the connection between abat-vent and the speed reducer, the dismounting on speed reducer of also being convenient to ventilate.
More than a kind of abat-vent provided by the present invention is described in detail.Used specific case herein principle of the present invention and mode of execution are set forth, above embodiment's explanation just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.

Claims (10)

1. an abat-vent is used for that speed reducer is carried out pressure and regulates, and it is characterized in that, comprising:
Be arranged on the vent of described speed reducer and the abat-vent main body (1) that is connected with described speed reducer, offer the suction port (1a) and air outlet (1b) that are interconnected and are used for gas communication on the described abat-vent main body (1), described suction port (1a) is connected with the vent of described speed reducer;
Seal first closeouts (2) of described suction port (1a);
Second closeouts (3) that is connected and seals described air outlet (1b) with described first closeouts (2), described first closeouts (2) and described second closeouts (3) are connected on the described abat-vent main body (1) movably;
Described first closeouts (2) and described second closeouts (3) are resetted, and the reset components (4) that is connected with described first closeouts (2).
2. according to the described abat-vent of claim 1, it is characterized in that offer positioning pin hole (1c) on the described abat-vent main body (1), described second closeouts (3) is provided with locating stud (31), described locating stud (31) is inserted in the described positioning pin hole (1c).
3. according to the described abat-vent of claim 2, it is characterized in that described positioning pin hole (1c) is no less than two, and whole described positioning pin holes (1c) is symmetrically distributed on the described abat-vent main body (1).
4. according to the described abat-vent of claim 1, it is characterized in that described first closeouts (2) is tapered needle valve, the little head end of described tapered needle valve is inserted in the described inlet hole and seals described inlet hole.
5. according to the described abat-vent of claim 4, it is characterized in that, also comprise connecting rod (5), the two ends of described connecting rod (5) are connected with described second closeouts (3) with described first closeouts (2) respectively.
6. according to the described abat-vent of claim 5, it is characterized in that described reset components (4) is spring, described spring housing is located on the described connecting rod (5), one end of described spring is connected with described first closeouts (2), and the other end of described spring is connected with described abat-vent main body (1).
7. according to the described abat-vent of claim 1, it is characterized in that, the annular groove-shaped structure is located to be in the air outlet (1b) of described abat-vent main body (1), and described second closeouts (3) is inserted in the described annular groove-shaped structure, and has gap for gas communication with the sidewall of described annular groove-shaped structure.
8. according to the described abat-vent of claim 1, it is characterized in that described abat-vent main body (1) is provided with air inlet frame (6), described suction port (1a) is opened in described air inlet frame (6).
9. described abat-vent according to Claim 8 is characterized in that described air inlet frame (6) is threaded with described abat-vent main body (1).
10. according to each described abat-vent of claim 1 to 9, it is characterized in that described abat-vent main body (1) is threaded with described speed reducer.
CN201210027168.2A 2012-02-08 2012-02-08 A kind of abat-vent Active CN103244657B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210027168.2A CN103244657B (en) 2012-02-08 2012-02-08 A kind of abat-vent

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210027168.2A CN103244657B (en) 2012-02-08 2012-02-08 A kind of abat-vent

Publications (2)

Publication Number Publication Date
CN103244657A true CN103244657A (en) 2013-08-14
CN103244657B CN103244657B (en) 2016-03-02

Family

ID=48924397

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201210027168.2A Active CN103244657B (en) 2012-02-08 2012-02-08 A kind of abat-vent

Country Status (1)

Country Link
CN (1) CN103244657B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106051124A (en) * 2015-04-14 2016-10-26 通用汽车环球科技运作有限责任公司 Airflow vent for a transmission
CN116181894A (en) * 2023-05-04 2023-05-30 江苏万基传动科技有限公司 Robot joint planetary reducer

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN200949704Y (en) * 2006-08-25 2007-09-19 巫宗进 Decompression valve
CN101201128A (en) * 2007-11-14 2008-06-18 宁波亚德客自动化工业有限公司 Pressure regulating valve
DE102007058160B3 (en) * 2007-11-30 2009-05-20 Klaus Heinrichs Bleed valve for use in screw plug, has barrier locking advanced movement of valve body, where sealing surface of seal element is deformed such that sealing surfaces are separated from each other and valve is opened
CN201335184Y (en) * 2009-01-20 2009-10-28 李金龙 Pneumatic safety valve
CN202484377U (en) * 2012-02-08 2012-10-10 沃德(天津)传动有限公司 Vent cap

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN200949704Y (en) * 2006-08-25 2007-09-19 巫宗进 Decompression valve
CN101201128A (en) * 2007-11-14 2008-06-18 宁波亚德客自动化工业有限公司 Pressure regulating valve
DE102007058160B3 (en) * 2007-11-30 2009-05-20 Klaus Heinrichs Bleed valve for use in screw plug, has barrier locking advanced movement of valve body, where sealing surface of seal element is deformed such that sealing surfaces are separated from each other and valve is opened
CN201335184Y (en) * 2009-01-20 2009-10-28 李金龙 Pneumatic safety valve
CN202484377U (en) * 2012-02-08 2012-10-10 沃德(天津)传动有限公司 Vent cap

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106051124A (en) * 2015-04-14 2016-10-26 通用汽车环球科技运作有限责任公司 Airflow vent for a transmission
CN106051124B (en) * 2015-04-14 2018-11-16 通用汽车环球科技运作有限责任公司 Vent gas stream for speed changer
CN116181894A (en) * 2023-05-04 2023-05-30 江苏万基传动科技有限公司 Robot joint planetary reducer

Also Published As

Publication number Publication date
CN103244657B (en) 2016-03-02

Similar Documents

Publication Publication Date Title
CN202484377U (en) Vent cap
CN104180064A (en) Stop valve
CN103244657A (en) Vent cap
CN103267030A (en) Reactor coolant pump shut-down seal device
CN202418653U (en) Extremely-high pressure oxygen pipeline valve
CN203962418U (en) A kind of air compressor air intake control valve assembly
CN204061976U (en) Dress formula floating ball valve in one
CN102901279B (en) Electronic expansion valve
CN110206925A (en) A kind of respiratory pressure valve
CN205918950U (en) Air -operated controller combination valve body mechanism
CN105080010B (en) A kind of container value
CN104896157B (en) Direct-power safety valve
CN204922080U (en) High temperature ball valve
CN104019053B (en) When high speed rotor start and stop, prevent the structure that sealing ring damages
CN106133418B (en) pressure relief device
CN103644318A (en) Inner balance type oxygen stop valve
CN204663595U (en) Gas turbine turbine gas flow regulation structure
CN204062072U (en) Low temperature Emergeny Cutoff Valves open in usual
CN201992113U (en) Ball valve, positioning component thereof and refrigerating system comprising ball valve
CN104594777A (en) Explosion venting window with passive explosion function
CN202100451U (en) Spherical air outer-covering casing for slurry pump
CN201279477Y (en) Coal grinding machine tie-rod sealing device
CN204025125U (en) Fan trouble preparation device in a kind of dust pelletizing system
CN206072480U (en) Nuclear power station turbine driven auxiliary feed-water pump 3 grades of electromagnetic drivers of nuclear safety
CN104088676B (en) A kind of compact type emergency overspeed governor

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CP01 Change in the name or title of a patent holder
CP01 Change in the name or title of a patent holder

Address after: 300409 No.82, Gaoxin Avenue, Beichen Science and Technology Park, Beichen District, Tianjin

Patentee after: WARD TRANSMISSION TECHNOLOGY (TIANJIN) Co.,Ltd.

Address before: 300409 No.82, Gaoxin Avenue, Beichen Science and Technology Park, Beichen District, Tianjin

Patentee before: WORLD TRANSMISSION TECHNOLOGY (TIANJIN) Co.,Ltd.

PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of invention: A breather cap

Effective date of registration: 20220610

Granted publication date: 20160302

Pledgee: Bank of China Limited Tianjin Hexi sub branch

Pledgor: WARD TRANSMISSION TECHNOLOGY (TIANJIN) Co.,Ltd.

Registration number: Y2022120000027

PE01 Entry into force of the registration of the contract for pledge of patent right
PC01 Cancellation of the registration of the contract for pledge of patent right

Date of cancellation: 20230821

Granted publication date: 20160302

Pledgee: Bank of China Limited Tianjin Hexi sub branch

Pledgor: WARD TRANSMISSION TECHNOLOGY (TIANJIN) Co.,Ltd.

Registration number: Y2022120000027

PC01 Cancellation 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 type of ventilation cap

Effective date of registration: 20230828

Granted publication date: 20160302

Pledgee: Bank of China Limited Tianjin Hexi sub branch

Pledgor: WARD TRANSMISSION TECHNOLOGY (TIANJIN) Co.,Ltd.

Registration number: Y2023120000074

PE01 Entry into force of the registration of the contract for pledge of patent right