CN216881269U - Cylinder housing for automobile gear shifting mechanism - Google Patents
Cylinder housing for automobile gear shifting mechanism Download PDFInfo
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- CN216881269U CN216881269U CN202122254881.8U CN202122254881U CN216881269U CN 216881269 U CN216881269 U CN 216881269U CN 202122254881 U CN202122254881 U CN 202122254881U CN 216881269 U CN216881269 U CN 216881269U
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Abstract
The utility model discloses a cylinder shell for an automobile gear shifting mechanism, which comprises a shell body, wherein one end of the shell body is a sealing end, the other end of the shell body is an opening end, a plurality of air leakage grooves are formed in the inner side wall of the shell body, the air leakage grooves are circumferentially arranged along the axis of the shell body, and the air leakage grooves are formed in one side close to the sealing end. The machining device for the air release groove of the air cylinder shell is further included. The utility model provides a cylinder shell for an automobile gear shifting mechanism, which can ensure that two ends of a piston are communicated when a cylinder is in an extreme position, and avoid the damage of the cylinder and other parts connected with the cylinder due to excessive pressure. The quick processing of groove in order to realize disappointing, processingequipment simple structure, convenient operation, the processing cost is low, and machining efficiency is high.
Description
Technical Field
The utility model relates to the technical field of cylinder housings in gear shifting mechanisms, in particular to a cylinder housing for an automobile gear shifting mechanism.
Background
The cylinder is a driving piece commonly used in automobile gear shifting mechanism, and in order to avoid gear shifting mechanism in the cylinder damage the cylinder and other parts be connected with the cylinder in extreme position, some pressure release structures need to be set up, consequently, this application has designed a cylinder housing for automobile gear shifting mechanism, carries out the pressure release through the mode that sets up the air release groove at cylinder housing inside wall. Because the size of the air leakage groove is small, the quantity is large, if a numerical control machine tool is adopted for processing, the processing cost is high, and the processing efficiency is low. Therefore, the inventor also designs a cylinder shell air leakage groove processing device, can realize quick processing of the air leakage groove, and has the advantages of simple structure, convenient operation, low processing cost, high processing efficiency and the like.
Disclosure of Invention
The utility model provides a cylinder shell for an automobile gear shifting mechanism, which can prevent a cylinder in the gear shifting mechanism from damaging the cylinder and other parts connected with the cylinder at the limit position, can keep two ends of a piston communicated when the cylinder is at the limit position, and can prevent the cylinder and other parts connected with the cylinder from being damaged by overlarge pressure.
The second object of the present invention is: the utility model provides a cylinder casing groove processingequipment that loses heart can realize losing heart groove rapid tooling, has processingequipment simple structure, convenient operation, and the processing cost is low, advantages such as machining efficiency height.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a cylinder housing for car gearshift, includes the casing body, and casing body one end is sealed end, and the other end of casing body is the open end, is equipped with a plurality of groove of leaking gas on the inside wall of casing body, and a plurality of is disappointed the groove and is followed the axis circumference setting of casing body, and the groove setting of disappointing is in the one side that is close to sealed end.
Among the above-mentioned technical scheme, the groove of disappointing can make the cylinder keep piston both ends intercommunication when extreme position, avoids too big pressure to damage cylinder and other parts of being connected with the cylinder.
Preferably, a piston is arranged in the cylinder shell, a sealing ring is arranged on the piston, and the length of the air release groove in the axial direction of the shell body is smaller than the width of the sealing ring. The structure can ensure that when the piston is positioned at the air leakage groove, the air leakage groove enables the two sides of the piston to be communicated.
Preferably, a communication cavity is formed in the outer side wall of the shell body, one end of the communication cavity is communicated with the sealing end of the shell body, and the other end of the communication cavity is flush with the opening end.
Preferably, a spoke-shaped reinforcing rib is arranged on the outer side of the sealing end of the shell body. The structure may increase the structural strength of the sealed end of the housing body.
Preferably, the inner side of the sealing end of the shell body is provided with a buffer counter bore. The buffer counter bore can contain part of gas, and stability is improved in the limit position.
The utility model provides a cylinder casing lets out gas groove processingequipment, including promoting the driving piece, push away the axle, mounting and a plurality of indent spare, push away axle and mounting along the axis direction sliding connection who pushes away the axle, it slides to promote the driving piece to drive the mounting, a plurality of indent spare sets up along the axis circumference that pushes away the axle, indent spare and mounting sliding connection, the direction of sliding of indent spare is for keeping away from the direction of pushing away the axle axis, be equipped with a plurality of indent dogtooth on the lateral wall of indent spare, the inside wall of indent spare with push away the axle contact, be equipped with the direction cambered surface on the lateral wall of pushing away axle and indent spare contact, be equipped with on the indent spare and make the indent spare to the gliding retraction spring of axis direction that pushes away the axle.
In the above technical solution, the pushing driving member may be a hydraulic cylinder, an air cylinder, a push rod motor, a lead screw nut mechanism or other mechanisms capable of providing a linear driving force. The working process of the processing device is as follows: fix the cylinder casing on processingequipment through fixed frock, open end orientation indent piece with the cylinder casing, then remove the cylinder casing outside the indent piece through fixed frock, make the position that needs processing disappointing groove aim at the indent dogtooth, then start and promote the driving piece, make and push away the axle sideslip, push away epaxial direction cambered surface and make the indent piece stretch out to the outside, indent dogtooth extrusion cylinder casing's inside wall, processing goes out the groove of letting out, then promote the driving piece and drive and push away the axle withdrawal, the indent piece retracts under the effect of the spring that contracts, then make fixed frock withdrawal, it can to take off the cylinder casing. The processing device is simple in structure, convenient to operate and high in processing efficiency.
Preferably, the inner side wall of the groove pressing piece is provided with a roller, and the groove pressing piece is in contact with the push shaft through the roller. The structure can reduce the friction force between the pressure groove member and the push shaft.
Preferably, the indent piece includes the briquetting that a plurality of was arranged along the axis direction of push shaft, and a plurality of briquetting is respectively with mounting sliding connection, and the indent dogtooth sets up on the lateral wall of briquetting. When the size of the air leakage groove to be processed on the air cylinder shell is too large, the whole air leakage groove is processed together to deform the unprocessed position of the inner wall of the air cylinder, and the deformation amount is too large to enable the air cylinder to be used normally. Above-mentioned technical scheme will lose heart the groove and divide into a lot of processing, makes the cylinder inner wall atress reduce, the deformation volume of less cylinder inner wall. And the push shaft can be pushed out once to realize processing, and the processing efficiency is high.
Preferably, the sliding direction of the pressing blocks inclines towards one side of the axial direction of the push shaft, and the inclination angles of a plurality of pressing blocks are increased in sequence; when all the pressing blocks are pushed out to the outermost side, the convex tooth parts of the pressing grooves on two adjacent pressing blocks are partially overlapped; in the axial direction of the push shaft, the radius of the guide cambered surface is increased and then reduced.
When will lose the gas groove and fall into processing many times, there is certain clearance between the indent dogtooth on the different briquetting, carry out one through different briquetting and lose gas groove processing man-hour, probably make and release disconnection between the gas groove, consequently, above-mentioned technical scheme can make briquetting case order release in proper order, after the briquetting is released, withdraw at once, back briquetting is released again, the indent dogtooth of back briquetting and the indent dogtooth part coincidence on the briquetting of preceding piece, can solve the unable problem of processing out the gas groove of junction of indent dogtooth. By controlling the push-out and retraction of the pressing blocks to be smooth, the mutual interference of the adjacent pressing blocks can be avoided.
Preferably, the angle of inclination of the pressure piece closest to the push driver is 0 degrees.
Preferably, the inclination angle of the pressing piece farthest from the push driving piece is 0 degree.
Preferably, the pressing block is connected with the fixing piece in a sliding mode through a fixing guide rod, one end of the fixing guide rod is connected with the fixing piece, sliding blocks are arranged on the fixing guide rod and correspond to the pressing block one to one, sliding grooves are formed in the pressing block and correspond to the sliding blocks one to one, and the sliding blocks are connected with the corresponding sliding grooves in a sliding mode. The structure can realize being connected of briquetting and mounting, and can set up inclination as required.
Preferably, the device further comprises a central fixing shaft, the central fixing shaft is fixed with the fixing piece, the central fixing shaft penetrates through the center of the push shaft, and two ends of the fixing guide rod are respectively fixed with the fixing piece and the central fixing shaft. The structure can increase the structural strength of the fixed guide rod.
Preferably, the push shaft is provided with a limit block. The structure can carry out spacingly to the push shaft, avoids the push shaft to release excessively.
Preferably, the pressure tank pieces are provided with arc-shaped grooves, the arc-shaped grooves on the pressure tank pieces are enclosed into a circular ring, the retraction springs are annular extension springs connected end to end, and the retraction springs are arranged in the circular ring enclosed by the arc-shaped grooves. The structure can realize the retracting action of the pressure groove piece.
Preferably, the push driving member is a hydraulic cylinder or an air cylinder or a push rod motor.
A cylinder shell air relief groove processing device comprises a pushing driving piece, a pushing shaft, a fixing piece and a plurality of groove pressing pieces, wherein the pushing shaft is connected with the fixing piece in a sliding mode along the axis direction, the pushing driving piece drives the fixing piece to slide, the plurality of groove pressing pieces are arranged along the axis circumference of the pushing shaft and are connected with the fixing piece in a sliding mode, the sliding direction of the groove pressing pieces is the direction far away from the axis of the pushing shaft, a plurality of groove pressing convex teeth are arranged on the outer side wall of each groove pressing piece, the inner side wall of each groove pressing piece is in contact with the pushing shaft, a first inclined surface is arranged on the side wall of each pushing shaft and each groove pressing piece, and a second inclined surface matched with the first inclined surface is arranged on the inner side wall of each groove pressing piece; the pressure groove piece is provided with a retraction spring which enables the pressure groove piece to slide towards the push shaft.
In the above technical solution, the pushing driving member may be a hydraulic cylinder, an air cylinder, a push rod motor, a screw and nut mechanism or other mechanisms capable of providing a linear driving force. The working process of the processing device is as follows: fix the cylinder casing on processingequipment through fixed frock, open end orientation indent piece with the cylinder casing, then remove the cylinder casing outside the indent piece through fixed frock, make the position that needs processing disappointing groove aim at the indent dogtooth, then start and promote the driving piece, make and push away the axle sideslip, push away epaxial direction cambered surface and make the indent piece stretch out to the outside, indent dogtooth extrusion cylinder casing's inside wall, processing goes out the groove of letting out, then promote the driving piece and drive and push away the axle withdrawal, the indent piece retracts under the effect of the spring that contracts, then make fixed frock withdrawal, it can to take off the cylinder casing. The processing device is simple in structure, convenient to operate and high in processing efficiency.
Preferably, the push shaft is provided with a limit block. The structure can carry out spacingly to the push shaft, avoids the push shaft to release excessively.
Preferably, the pressure tank pieces are provided with arc-shaped grooves, the arc-shaped grooves on the pressure tank pieces are enclosed into a circular ring, the retraction springs are annular extension springs connected end to end, and the retraction springs are arranged in the circular ring enclosed by the arc-shaped grooves. The structure can realize the retracting action of the pressure groove piece.
The utility model has the beneficial effects that: (1) the air relief groove can ensure that two ends of the piston are communicated when the air cylinder is in a limit position, so that the air cylinder and other parts connected with the air cylinder are prevented from being damaged by excessive pressure; (2) the quick machining of the air leakage groove can be realized, and the machining device has the advantages of simple structure, convenience in operation, low machining cost and high machining efficiency; (3) divide into processing many times with disappointing groove, make the cylinder inner wall atress reduce, reduce cylinder inner wall's deformation volume, and push away a release and can realize processing, machining efficiency is high: (4) the push-out and retraction of the pressing blocks are controlled to be smooth, so that the mutual interference of the adjacent pressing blocks can be avoided, and the problem that the vent groove cannot be machined at the joint of the convex teeth of the pressing groove can be solved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of embodiment 3;
FIG. 3 is a schematic structural view of example 4.
In the figure: the push driving piece comprises a push driving piece 1, a push shaft 2, a guide arc surface 2.1, a limiting block 2.2, a first inclined surface 2.3, a fixing piece 3, a groove pressing piece 4, a groove pressing convex tooth 4.1, a pressing block 4.2, a sliding groove 4.2.1, an arc-shaped groove 4.3, a second inclined surface 4.4, a retraction spring 5, a roller 6, a fixed guide rod 7, a sliding block 7.1, a central fixed shaft 8, a shell body 9, a sealing end 9.1, an opening end 9.2, an air leakage groove 9.3, a communication cavity 9.4 and a buffer counter bore 9.5.
Detailed Description
The utility model is further described with reference to the following figures and specific embodiments.
Example 1:
as shown in fig. 1, a cylinder housing air relief groove processing device includes a push driving member 1, a push shaft 2, a fixing member 3 and a plurality of groove pressing members 4, wherein the push driving member 1 is a hydraulic cylinder or an air cylinder or a push rod motor. Push away axle 2 and mounting 3 along the axis direction sliding connection who pushes away axle 2, it slides to promote driving piece 1 and drive mounting 3, a plurality of indent spare 4 evenly sets up along the axis circumference that pushes away axle 2, indent spare 4 and mounting 3 sliding connection, the direction of sliding of indent spare 4 is the direction of keeping away from axle 2 axis, be equipped with a plurality of indent dogtooth 4.1 on the lateral wall of indent spare 4, a plurality of indent dogtooth 4.1 evenly sets up along the axis circumference that pushes away axle 2, the inside wall and the contact of push away axle 2 of indent spare 4, be equipped with direction cambered surface 2.1 on the lateral wall that pushes away axle 2 and indent spare 4 contact, be equipped with metal gyro wheel 6 on the inside wall of indent spare 4, indent spare 4 passes through gyro wheel 6 and pushes away axle 2 contact, the axis of rotation of gyro wheel 6 is perpendicular with the axis that pushes away axle 2. And a limiting block 2.2 is arranged on the push shaft 2. The groove pressing piece 4 is provided with a retraction spring 5 which makes the groove pressing piece 4 slide towards the axial direction of the push shaft 2. The pressure groove pieces 4 are provided with arc grooves 4.3, the arc grooves 4.3 on the plurality of pressure groove pieces 4 are encircled to form a circular ring, the retraction springs 5 are annular extension springs connected end to end, and the retraction springs 5 are arranged in the circular ring encircled by the arc grooves 4.3.
In the above technical solution, the push driving member 1 may be a hydraulic cylinder, an air cylinder, a push rod motor, a screw and nut mechanism or other mechanisms capable of providing a linear driving force. The working process of the processing device is as follows: fix the cylinder casing on processingequipment through fixed frock, open end 9.2 with the cylinder casing is towards indent piece 4, then move the cylinder casing to the indent piece 4 outside through fixed frock, make the position that needs processing gas release groove 9.3 aim at indent dogtooth 4.1, then start and promote driving piece 1, make and push away 2 sideslip of axle, the direction cambered surface 2.1 on the push away axle 2 makes indent piece 4 stretch out to the outside, indent dogtooth 4.1 extrudes the inside wall of cylinder casing, process out gas release groove 9.3, then promote driving piece 1 and drive and push away axle 2 withdrawal, indent piece 4 retracts under the effect of retraction spring 5, then make fixed frock retract, it can to take off the cylinder casing. The processing device is simple in structure, convenient to operate and high in processing efficiency.
Example 2:
as shown in fig. 1, based on embodiment 1, the pressure groove member 4 includes a plurality of pressing blocks 4.2 arranged along the axial direction of the push shaft 2, the plurality of pressing blocks 4.2 are respectively connected with the fixing member 3 in a sliding manner, and the pressure groove convex teeth 4.1 are arranged on the outer side wall of the pressing blocks 4.2. The sliding direction of the pressing blocks 4.2 inclines towards one side of the axial direction of the push shaft 2, the inclination direction can be the left side in the figure 3, and also can be the right side in the figure 3, and the inclination angles of a plurality of pressing blocks 4.2 are sequentially increased; the angle of inclination of the pressure piece 4.2 closest to the push driver 1 is 0 degrees. When all the pressing blocks 4.2 are pushed out to the outermost side, the pressing groove convex teeth 4.1 on two adjacent pressing blocks 4.2 are partially overlapped; in the axial direction of the push shaft 2, the radius of the guide cambered surface 2.1 is increased and then reduced.
The push rod mechanism further comprises a central fixing shaft 8, the central fixing shaft 8 is fixed with the fixing piece 3, the central fixing shaft 8 penetrates through the center of the push shaft 2, and two ends of the fixing guide rod 7 are fixed with the fixing piece 3 and the central fixing shaft 8 respectively. The pressing block 4.2 is connected with the fixing piece 3 in a sliding mode through the fixing guide rod 7, one end of the fixing guide rod 7 is connected with the fixing piece 3, the sliding block 7.1 is arranged on the fixing guide rod 7, the sliding block 7.1 corresponds to the pressing block 4.2 in a one-to-one mode, the sliding groove 4.2.1 is arranged on the pressing block 4.2, the sliding groove 4.2.1 corresponds to the sliding block 7.1 in a one-to-one mode, and the sliding block 7.1 is connected with the corresponding sliding groove 4.2.1 in a sliding mode. When the size of the air leakage groove 9.3 to be processed on the cylinder shell is too large, the whole air leakage groove 9.3 is processed together, so that the unprocessed position of the inner wall of the cylinder is also deformed, and the cylinder cannot be normally used due to too large deformation. Above-mentioned technical scheme will lose heart groove 9.3 divide into a lot of processing, makes the cylinder inner wall atress reduce, less cylinder inner wall's deformation volume. And the push shaft 2 can be pushed out once to realize processing, and the processing efficiency is high. When the gas release groove 9.3 is divided into a plurality of times of processing, a certain gap exists between the pressure groove convex teeth 4.1 on different pressing blocks 4.2, when one gas release groove 9.3 is processed through different pressing blocks 4.2, the gas release grooves 9.3 are possibly disconnected, therefore, the pressing blocks 4.2 can be sequentially pushed out by the technical scheme, when the pressing block 4.2 is pushed out, the pressing block is retracted immediately, the next pressing block 4.2 is pushed out again, the pressure groove convex teeth 4.1 of the next pressing block 4.2 are partially overlapped with the pressure groove convex teeth 4.1 on the previous pressing block 4.2, and the problem that the gas release grooves 9.3 cannot be processed at the joint of the pressure groove convex teeth 4.1 can be solved. By controlling the push-out and retraction of the pressing blocks 4.2 to be smooth, the mutual interference of the adjacent pressing blocks 4.2 can be avoided.
Example 3:
as shown in fig. 2, a cylinder housing air relief groove processing device includes a pushing driving member 1, a pushing shaft 2, a fixing member 3 and a plurality of groove pressing members 4, the pushing shaft 2 is slidably connected with the fixing member 3 along an axis direction, the pushing driving member 1 drives the fixing member 3 to slide, the plurality of groove pressing members 4 are uniformly arranged along the axis circumference of the pushing shaft 2, the groove pressing members 4 are slidably connected with the fixing member 3, the sliding direction of the groove pressing members 4 is a direction far away from the axis of the pushing shaft 2, a plurality of groove pressing convex teeth 4.1 are arranged on the outer side wall of the groove pressing members 4, the plurality of groove pressing convex teeth 4.1 are uniformly arranged along the axis circumference of the pushing shaft 2, the inner side wall of the groove pressing members 4 is in contact with the pushing shaft 2, a first inclined surface 2.3 is arranged on the side wall of the pushing shaft 2 and the groove pressing members 4, and a second inclined surface 4.4 adapted to the first inclined surface 2.3 is arranged on the inner side wall of the groove pressing members 4; and a limiting block 2.2 is arranged on the push shaft 2. The pressure groove piece 4 is provided with a retraction spring 5 which enables the pressure groove piece 4 to slide towards the push shaft 2. The pressure groove parts 4 are provided with arc grooves 4.3, the arc grooves 4.3 on the plurality of pressure groove parts 4 are encircled to form a circular ring, the retraction springs 5 are annular extension springs connected end to end, and the retraction springs 5 are arranged in the circular ring encircled by the arc grooves 4.3.
In the above technical solution, the push driving member 1 may be a hydraulic cylinder, an air cylinder, a push rod motor, a lead screw nut mechanism or other mechanisms capable of providing a linear driving force. The working process of the processing device is as follows: fix the cylinder casing on processingequipment through fixed frock, open end 9.2 with the cylinder casing is towards indent piece 4, then move the cylinder casing to the indent piece 4 outside through fixed frock, make the position that needs processing gas release groove 9.3 aim at indent dogtooth 4.1, then start and promote driving piece 1, make and push away 2 sideslip of axle, the direction cambered surface 2.1 on the push away axle 2 makes indent piece 4 stretch out to the outside, indent dogtooth 4.1 extrudes the inside wall of cylinder casing, process out gas release groove 9.3, then promote driving piece 1 and drive and push away axle 2 withdrawal, indent piece 4 retracts under the effect of retraction spring 5, then make fixed frock retract, it can to take off the cylinder casing. The processing device is simple in structure, convenient to operate and high in processing efficiency.
Example 4:
as shown in fig. 3, a cylinder housing for automobile gearshift, including casing body 9, casing body 9 one end is sealed end 9.1, and the other end of casing body 9 is open end 9.2, is equipped with the disappointing groove 9.3 of a plurality of on the inside wall of casing body 9, and a plurality of lets out the groove 9.3 and evenly sets up along the axis circumference of casing body 9, lets out the groove 9.3 setting and is being close to one side of sealed end 9.1. The piston is arranged in the cylinder shell, the sealing ring is arranged on the piston, and the length of the air release groove 9.3 in the axial direction of the shell body 9 is smaller than the width of the sealing ring. Be equipped with intercommunication chamber 9.4 on the lateral wall of casing body 9, intercommunication chamber 9.4 one end and casing body 9's sealed end 9.1 intercommunication, the other end and the open end 9.2 in intercommunication chamber 9.4 flush. The outside of the sealed end 9.1 of the housing body 9 is provided with spoke-like reinforcing ribs. The inner side of the sealing end 9.1 of the shell body 9 is provided with a buffer counter bore 9.5.
Among the above-mentioned technical scheme, the groove of disappointing 9.3 can make the cylinder keep piston both ends intercommunication when extreme position, avoid too big pressure to damage cylinder and other parts of being connected with the cylinder. When the piston is at the position of the air release groove 9.3, the air release groove 9.3 can ensure that two sides of the piston are communicated. The buffer counter bore 9.5 can contain part of gas, and stability is improved in the limit position.
The utility model has the beneficial effects that: (1) the air relief groove can ensure that two ends of the piston are communicated when the air cylinder is at the limit position, so that the air cylinder and other parts connected with the air cylinder are prevented from being damaged by excessive pressure; (2) the quick machining of the air leakage groove can be realized, and the machining device has the advantages of simple structure, convenience in operation, low machining cost and high machining efficiency; (3) divide into the processing many times of disappointing groove, make cylinder inner wall atress reduce, reduce cylinder inner wall's deformation volume, and push away a release and can realize processing, machining efficiency is high: (4) the push-out and retraction of the pressing blocks are controlled to be smooth, so that the mutual interference of the adjacent pressing blocks can be avoided, and the problem that the vent groove cannot be machined at the joint of the convex teeth of the pressing groove can be solved.
Claims (5)
1. The utility model provides a cylinder housing for automobile gearshift, characterized by, includes the casing body, and casing body one end is sealed end, and the other end of casing body is the open end, is equipped with a plurality of groove of leaking on the inside wall of casing body, and the groove that loses heart of a plurality of sets up along the axis circumference of casing body, and the groove that loses heart sets up in the one side that is close to sealed end.
2. The cylinder housing for a gearshift mechanism of an automobile as set forth in claim 1 wherein a piston is provided in the cylinder housing, the piston being provided with a seal ring, the length of the air bleed groove in the axial direction of the housing body being less than the width of the seal ring.
3. The cylinder housing for a gearshift mechanism of automobile as claimed in claim 1, wherein the outer sidewall of the housing body is provided with a communication chamber, one end of the communication chamber is communicated with the sealed end of the housing body, and the other end of the communication chamber is flush with the open end.
4. The cylinder housing for an automotive gearshift mechanism of claim 1 wherein the outside of the sealed end of the housing body is provided with spoke-like reinforcement.
5. The cylinder housing for an automotive gearshift mechanism of claim 1 or 2 or 3 or 4, wherein the inside of the sealed end of the housing body is provided with a buffer counterbore.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122254881.8U CN216881269U (en) | 2021-09-16 | 2021-09-16 | Cylinder housing for automobile gear shifting mechanism |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122254881.8U CN216881269U (en) | 2021-09-16 | 2021-09-16 | Cylinder housing for automobile gear shifting mechanism |
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| CN216881269U true CN216881269U (en) | 2022-07-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113932009A (en) * | 2021-09-16 | 2022-01-14 | 浙江安统汽车部件有限公司 | Cylinder shell for automobile gear shifting mechanism and air leakage groove machining device |
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2021
- 2021-09-16 CN CN202122254881.8U patent/CN216881269U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113932009A (en) * | 2021-09-16 | 2022-01-14 | 浙江安统汽车部件有限公司 | Cylinder shell for automobile gear shifting mechanism and air leakage groove machining device |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Ningbo bofeite Auto Parts Co.,Ltd. Assignor: ZHEJIANG ANTONG AUTO PARTS Co.,Ltd. Contract record no.: X2023330000327 Denomination of utility model: A cylinder housing for automotive gear shifting mechanisms Granted publication date: 20220705 License type: Common License Record date: 20230601 |
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| EE01 | Entry into force of recordation of patent licensing contract |