CN216307025U - Wind pipe connector for tight-lock coupler and coupler thereof - Google Patents
Wind pipe connector for tight-lock coupler and coupler thereof Download PDFInfo
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- CN216307025U CN216307025U CN202122777325.9U CN202122777325U CN216307025U CN 216307025 U CN216307025 U CN 216307025U CN 202122777325 U CN202122777325 U CN 202122777325U CN 216307025 U CN216307025 U CN 216307025U
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Abstract
The utility model discloses an air pipe connector for a tight-lock coupler and a coupler thereof, relates to the technical field of rail transit, and solves the technical problems that the existing air pipe connector is inconvenient to assemble and the like; the air duct connector comprises a valve rod, a valve body matched with one end of the valve rod, a connecting seat, an elastic piece and a sealing gasket, wherein the connecting seat is sleeved on the large outer circle step at the other end of the valve rod and is fixedly connected with the valve body, the valve rod is elastically abutted to the elastic piece of the connecting seat, the end face of the large outer circle step is sealed with the end face of the valve body, the valve port rubber is installed at one end of the valve rod, and a radial communicating hole and a main hole are formed in the valve rod. The valve port rubber is arranged on the valve rod so as to move along with the movement of the valve rod, so that the valve port rubber is tightly attached to the air pipe connector to be automatically locked by the elastic piece arranged at one part when the air is communicated, the structure of the air pipe connector is simplified, the required parts are reduced, and the processing and the assembly of the air pipe connector are facilitated.
Description
Technical Field
The utility model relates to the technical field of rail transit, in particular to an air pipe connector for a tight-lock coupler and the coupler.
Background
In order to improve the automation of the coupling and uncoupling of two adjacent rows of carriages of a motor train unit and a subway vehicle, a full-automatic coupler system is generally adopted in the industry at present, and the purpose is to ensure that the air passages of the two rows of carriages are automatically communicated while the two couplers are mechanically coupled, and the air passages can be automatically locked after the two couplers are uncoupled, so that air leakage is prevented; the mechanism for automatically connecting the air passage during connection and locking the air passage after disconnection is called an air pipe connector in the industry.
The existing main air duct connector is complex in structure, the air duct connector for the tight-lock type coupler disclosed by CN204284743U in the prior art adopts the pressure of a pressure spring to enable two valve port rubbers to be tightly attached to seal, and meanwhile, the communication of an air path adopts the pressure of the coupler to compress a tappet spring to realize the communication of the air path; and the more complex the structure of the wind pipe connector is, the more structural parameters affecting the performance of the wind pipe connector. In addition, the valve head of the air pipe connector is short in telescopic guiding, and the risk of ejection and clamping stagnation exists after unhooking.
SUMMERY OF THE UTILITY MODEL
The utility model aims to: in order to solve the technical problem, the utility model provides a wind pipe connector for a tight-lock coupler and the coupler thereof.
The technical scheme adopted by the utility model is as follows:
a coupler is a tight-lock coupler, and the wind pipe connector of the coupler is any one of the wind pipe connectors described below.
A tight-lock type wind pipe connector for a car coupler comprises a valve rod, a valve body, a connecting seat, an elastic piece and a sealing gasket, wherein the valve body is matched with the outer circular surface of one end of the valve rod and is in circumferential sealing fit with the outer circular surface of the other end of the valve rod;
under the pre-pressure action of the elastic piece, the cylindrical end surface of the valve rod is tightly attached to the sealing gasket, and the communication between the vent hole and the communication hole is blocked to realize sealing.
Further, the outer face of cylinder of the big excircle step of valve rod cooperates with the chamber of admitting air of connecting seat, and the valve rod can be at the intracavity axial slip of admitting air of connecting seat, just is located sealed outside of filling up on big excircle step and is provided with the intercommunicating pore, under the elastic component pressure effect, makes valve rod cylinder end face and sealed the hugging closely, blocks the intercommunication of gas circuit between ventilation hole and the intercommunicating pore to the realization is sealed.
Further, the sealing gasket is of an annular structure and is installed in an annular groove in the end face of the valve body, the cross section of the sealing gasket is rectangular, the width of the end face annular groove close to the connecting seat is larger than that of the other end of the end face annular groove, and a radial expansion space is formed in one end of the sealing gasket, close to the connecting seat, after compression deformation.
Further, valve body and valve complex hole pore wall middle part and be close to one side of connecting seat and be provided with the big footpath hole of ring package valve rod, the outer face of cylinder of valve rod contracts into the neck in being close to one side of big excircle step to one side that is close to the connecting seat with the hole forms the annular space with big footpath hole intercommunication, ventilation hole and annular space intercommunication.
Further, the neck portion is transited to the isodiametric outer circular surface of the valve rod through a conical surface, and the annular space is communicated with the large-diameter hole through a conical hole.
Furthermore, a plurality of annular protrusions are arranged on the outer cylindrical surface of the valve port rubber, and each annular protrusion is matched with the corresponding inner annular groove.
Furthermore, the outer side groove wall of the inner annular groove farthest from the connecting seat penetrates outwards and is communicated with the outside, one side of the valve port rubber, far away from the connecting seat, protrudes outwards to form a spherical surface, and the diameter of an inner hole on one side of the valve port rubber, far away from the connecting seat, is smaller than that of an inner hole on the other side.
Further, the inner chamber of connecting seat is tertiary shoulder hole, and its biggest footpath hole is the chamber of admitting air, and its smallest footpath hole is the inlet end hole, the elastic component is the pressure spring, and its one end cover is established on the little axis body of big excircle step evagination, and during its other end inserted the pitch diameter hole of tertiary shoulder hole, its both ends respectively with big excircle step terminal surface and pitch diameter hole bottom terminal surface butt.
Furthermore, one end of the valve body, which is close to the connecting seat, protrudes outwards to form a boss, and the excircle of the boss is matched with the inner wall of the air inlet cavity.
The utility model has the following beneficial effects:
1. the valve port rubber is arranged on the valve rod to move along with the movement of the valve rod, so that the elastic part arranged at one part is utilized to realize the mutual adhesion of the valve port rubber when the air is communicated and the automatic locking of the air pipe connector, and the requirement of a plurality of parts on the deformation force of the elastic part can be met by utilizing the elastic part at one part, thereby simplifying the structure of the air pipe connector, reducing the required parts, facilitating the processing and the assembly of the air pipe connector, simultaneously simplifying the elastic requirements of the plurality of parts to one part on the basis of ensuring that the working performance of the formed air pipe connector is not reduced, effectively reducing the parameters influencing the performance of the air pipe connector, improving the stability of the performance of the air pipe connector, and reducing the frequency of subsequent faults so as to ensure that the air pipe connector keeps working efficiently for a long time;
2. compared with the prior art, the telescopic hook has the advantages that the valve head is omitted, the telescopic guide is completely stopped, and the risk of popping and clamping stagnation after unhooking is eliminated;
3. the valve rod is located that one end radial dimension of connecting seat is big, weight is big, if it only sets up unsettled state, can lead to the stress that cooperation position bore between valve rod and the valve body to be along with the valve rod is retracted crescent, then leads to the valve rod to produce radial offset, the dead condition of card even to appear because of the fit clearance between its and the valve body. In the embodiment, the valve rod is radially positioned by the matching part of one end of the valve rod and the valve body, and the other end of the valve rod is radially positioned by the matching of the large outer circle step at the other end of the valve rod and the air inlet cavity 301 of the connecting seat 3, so that the coaxiality of the two ends of the valve rod in the whole moving process is ensured, and the stability of the structure and the stability of the working performance are improved;
4. one side of the valve port rubber, which is far away from the connecting seat, protrudes outwards to form a spherical surface, so that the contact part between two valve port rubbers 8 which need to be closely connected is gradually increased outwards from the center along the radial direction, the extrusion force of the contact part close to the center is maximum, and the sealing performance of the contact part between the valve port rubbers is improved; meanwhile, the diameter of an inner hole on one side, far away from the connecting seat, of the valve port rubber is smaller than that of an inner hole on the other side, so that the radial thickness of one side, close to the contact part, of the valve port rubber is increased by inwards extending the valve port rubber, deformation of the contact parts of the valve port rubber, far away from each other due to mutual extrusion, is resisted, extrusion force of the contact parts of the valve port rubber is guaranteed, and sealing performance of the valve port rubber is guaranteed;
5. during the tuber pipe intercommunication, the valve rod moves to the right, and the pressure spring is compressed, and the direction at valve rod both ends is carried out through the inner wall contact with the hole of valve body and connecting seat respectively at the valve rod both ends, and its middle part position moves right along the axis along with the valve rod to make the valve rod be located the neck and keep away from the excircle of big excircle step one side and the inboard contact of annular space, thereby lead to the centre that the valve rod removed, promote valve rod mobility stability.
Drawings
In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings needed to be used in the embodiment will be briefly described below, and it should be understood that the proportional relationship of each component in the drawings in this specification does not represent the proportional relationship in the actual material selection design, and is only a schematic diagram of the structure or the position, in which:
FIG. 1 is a schematic structural view of a wind pipe connector;
FIG. 2 is an enlarged view at A in FIG. 1;
FIG. 3 is an exploded view of a wind pipe connector;
fig. 4 is a left side view in the mounted state;
FIG. 5 is a schematic view of the mating of the two coupler halves with the wind pipe connectors engaged;
FIG. 6 is a top view of a wind pipe connector mounted on a coupler.
Reference numerals in the drawings indicate:
1-a valve body, 2-a valve rod, 3-a connecting seat, 4-an elastic part, 5-a sealing gasket, 6-O-shaped sealing ring A, 7-O-shaped sealing ring B, 8-valve port rubber, 9-inner hexagonal socket head cap screw A, 10-a car coupler and 11-inner hexagonal socket head cap screw B;
101-annular groove, 102-large-diameter hole, 103-inner hole and 104-annular space;
201-main hole, 202-vent hole, 203-communication hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the utility model, are intended for purposes of illustration only and are not intended to limit the scope of the utility model.
The present invention will be described in detail with reference to fig. 1 to 6.
Example 1
As shown in fig. 1 to 3, a wind pipe connector for a tight-lock coupler comprises a valve rod 2, a valve body 1 matched with the outer circular surface of one end of the valve rod 2 and in circumferential sealing fit with the outer circular surface, a connecting seat 3 sleeved on the large outer circular step of the other end of the valve rod 2 and fixedly connected with the valve body 1, an elastic part 4 for elastically abutting the valve rod 2 and the connecting seat 3, and a sealing gasket 5 for sealing the end surface of the large outer circular step and the end surface of the valve body 1, wherein one end of the valve rod 2, which is far away from the connecting seat 3, is provided with a valve port rubber 8, and the valve rod 2 is provided with a main hole 201, one end of which is communicated with the outside through an inner hole of the valve port rubber 8 and the other end of which is communicated with the outer circular cylindrical surface of the valve rod 2 through a radial vent hole 202;
under the action of the prepressing force of the elastic element 4, the cylindrical end surface of the valve rod 2 is tightly attached to the sealing gasket 5, and the communication between the vent hole 202 and the communication hole 203 is blocked to realize sealing.
The valve body 1, the valve rod 2, the connecting seat 3 is coaxial each other, the excircle of valve rod 2 preferably with the hole 103 of valve body 1 and the air inlet cavity 301 clearance fit of connecting seat 3, seal structure between the excircle face of valve rod 2 and the valve body 1 is the O type sealing washer B7 in the interior annular groove of installing on the hole 103 of valve body 1, and O type sealing washer B7 is provided with a plurality ofly along the valve body 1 axial, its inside and outside circle respectively with valve rod and interior annular groove interference fit, in order to guarantee between valve rod and the valve body can the relative slip, can also seal mutually and cooperate, guarantee its leakproofness. The connecting base 3 is detachably fixed on the valve body 1 through a hexagon socket head cap screw A9, so that the assembly and the later maintenance of the utility model are convenient. In order to ensure the sealing performance between the connecting seat 3 and the valve body 1, it is preferable that a large annular groove is provided at a portion of the valve body 1 contacting the connecting seat 3, and an O-ring a6 is installed in the large annular groove and is axially compressed, thereby sealing a contact end surface between the valve body 1 and the connecting seat 3, so that the valve body 1 and the connecting seat 3 can be detachably connected by a screw, and the sealing performance in fitting between them can be ensured by the O-ring a 6.
The air pipe connection process when the air pipe connector is connected and hung: in the coupling process, the front end faces of the two couplers 10 are continuously close to each other, referring to fig. 5, the upper valve port rubber 8 and the lower valve port rubber 8 shown in fig. 5 are contacted firstly, the two valve port rubbers 8 are mutually extruded from the contact in the process of the two couplers 10 being close to each other, until the end faces of the upper valve rod 2 and the lower valve rod 2 are contacted, the valve port rubbers 8 are positioned in the main holes of the valve rods 2 and are not continuously deformed, and at the moment, the two valve port rubbers 8 are mutually extruded, tightly attached and sealed; the front end faces of the two couplers 10 are continuously close to each other, the two valve rods 2 overcome the pressure of the elastic piece 4 and respectively move upwards and downwards (the valve rod of the air pipe connector at the upper end moves upwards, and the valve rod in the air pipe connector at the lower end moves downwards) until the front end faces of the two couplers 10 contact with the couplers to be connected, at the moment, as shown in fig. 5, the valve rods 2 and the sealing gaskets 5 are separated, namely, the valve ports are opened, and gas with pressure enters the gas inlet cavity 301 from the gas inlet end hole 302 and then enters the other air pipe connector through the valve ports, namely, the gap between the valve rods 2 and the valve body and then through the air holes 202, so that the gas passages between the two adjacent carriages are automatically communicated while the couplers are connected.
The automatic locking process of the air passage after the air pipe connector is unhooked: after the coupler is unhooked, the upper and lower air pipe connectors are separated, under the action of the force of the pressure elastic piece 4, the valve rod 2 is reset, the sealing gasket 5 is tightly attached between the valve rod and the valve body after being pressed by the valve rod 2 to realize sealing, and at the moment, the air path of the air pipe connector is automatically locked as shown in the state of figure 1.
The valve port rubber 8 is arranged on the valve rod so as to move along with the movement of the valve rod, thereby realizing the mutual adhesion of the valve port rubber and the automatic locking of the wind pipe connector when the gas is communicated by utilizing the elastic element 4 arranged at one part, the requirement of the elastic part 4 on the deformation force of the elastic part 4 at multiple positions can be met by utilizing the elastic part 4 at one position, the structure of the wind pipe connector is simplified, the required parts are reduced, the processing and the assembly of the wind pipe connector are convenient, meanwhile, the working performance of the wind pipe connector is not reduced, and meanwhile, the elastic requirements of a plurality of parts of the wind pipe connector are simplified to one part, so that the parameters influencing the performance of the wind pipe connector are effectively reduced, the stability of the performance of the wind pipe connector is improved, and the frequency of subsequent faults of the wind pipe connector is reduced, so that the wind pipe connector can work efficiently for a long time.
Meanwhile, compared with the prior art, the utility model cancels the valve head, thereby completely avoiding the short telescopic guide and eliminating the risk of popping and clamping stagnation after unhooking.
Example 2
In the present embodiment, the elastic member 4 is preferably a compression spring.
As shown in fig. 1 to 3, a wind pipe connector for a tight-lock coupler comprises a valve rod 2, a valve body 1 matched with and circumferentially and hermetically matched with the outer circular surface of one end of the valve rod 2, a connecting seat 3 sleeved on a large outer circular step at the other end of the valve rod 2 and fixedly connected with the valve body 1, a pressure spring elastically abutting the valve rod 2 and the connecting seat 3, and a sealing gasket 5 sealing the end surface of the large outer circular step and the end surface of the valve body 1, wherein one end of the valve rod 2, which is far away from the connecting seat 3, is provided with a valve port rubber 8, and the valve rod 2 is provided with four main holes 201, one end of each main hole is communicated with the outside through an inner hole of the valve port rubber 8, and the other end of each main hole is communicated with the outer circular cylindrical surface of the valve rod 2 through a radial vent hole 202;
under the action of the prepressing force of the elastic element 4, the cylindrical end surface of the valve rod 2 is tightly attached to the sealing gasket 5, and the communication between the vent hole 202 and the communication hole 203 is blocked to realize sealing.
The pressure spring 4 is placed in 3 intracavity of connecting seat, and 4 right-hand members of pressure spring are hugged closely with 3 intracavity steps of connecting seat, and 4 left ends of pressure spring are hugged closely with the biggest excircle step right-hand member of valve rod 2, and the cover is on the outer face of cylinder on the valve rod 2 right on the 4 left sides of pressure spring, and the pressure spring 4 shown in figure 1 is in the compression state, and under the effect of pressure spring 4 precompression, valve rod 2 is hugged closely with 1 right-hand member of valve body, and the sealed 5 assurance of valve rod 2 compression packing is sealed.
The outer face of cylinder of the big excircle step of valve rod 2 and the chamber 301 cooperation of admitting air of connecting seat 3, just be located sealed 5 outsides on big excircle step and be provided with eight intercommunicating pores 203, the compression the pressure spring can be passed through intercommunicating pores 203 with the chamber 301 of admitting air of connecting seat 3 near the one side intercommunication of admitting air end hole 302 with the one end that ventilation hole 202 is close to the outer face of cylinder of rod 2.
The outer face of cylinder of big excircle step cooperates with air inlet chamber 301 of connecting seat 3 to carry out radial positioning and removal direction to the one end that the valve rod is close to the connecting seat, its radial position when guaranteeing the valve rod with the valve body together, thereby guarantee that the valve rod has higher axiality at whole removal in-process and valve body, prevent that its card dead condition from appearing. Especially, the valve rod is located that one end radial dimension of connecting seat is big, weight is big, if it only sets up unsettled state, can lead to the stress that cooperation position bore between valve rod and the valve body to be along with the valve rod retraction crescent, then lead to the valve rod to produce radial offset, the dead condition of card even to appear because of the fit clearance between its and the valve body. In the embodiment, the valve rod is radially positioned by the matching part of one end of the valve rod and the valve body, and the other end of the valve rod is radially positioned by the matching of the large outer circle step at the other end of the valve rod and the air inlet cavity 301 of the connecting seat 3, so that the coaxiality of the two ends of the valve rod in the whole moving process is ensured, and the stability of the structure and the stability of the working performance are improved.
The following embodiments may also be adopted with respect to "the vent hole 202 communicates with the side of the intake chamber 301 of the connector holder 3 near the intake end hole 302": a through groove is formed in the outer cylindrical surface of the large outer circular step, and when the pressure spring is compressed, the two sides of the large outer circular step are communicated through the through groove. Alternatively, the following embodiments are used: the big excircle step directly forms the annular space with air inlet cavity 301, when compressing the pressure spring, communicates the both sides of big excircle step through the annular space.
The arrangement of the gasket 5 is specifically as follows: sealing up 5 is the rubber material, and it is the rectangle sealing washer, specifically sealing up 5 is annular structure, and it is installed and is set up in the terminal surface annular groove 101 on 1 terminal surfaces of valve body, and 5 cross sections of sealing up are the rectangle, and the width that terminal surface annular groove 101 is close to connecting seat 3 is greater than the width of the other end, and the one end that is close to connecting seat 3 after 5 compressive deformation of messenger's sealing up has radial expansion space. The annular groove 101 may have a trapezoidal cross-sectional configuration or a stepped configuration, as shown in fig. 2. In fig. 2, the right side of the sealing groove is wide, so as to provide a space for longitudinal deformation of the sealing gasket 5 during compression, and ensure good sealing performance of the structure; the height of the gasket 5 in the free state is greater than the depth of the annular groove 101.
The following is implemented with respect to the fitting structure between the valve body 1 and the valve stem 2: as shown in fig. 1, the left end of the valve rod is in small clearance fit with the inner hole 103 of the valve body 1, the right end of the valve rod 2 is in small clearance fit with the connecting seat 3, and the valve rod can move left and right relative to the valve body and the connecting seat 3; the valve body 1 is provided with the big footpath hole 102 of ring package valve rod 2 with valve rod 2 complex hole 103 pore wall middle part and the one side that is close to connecting seat 3, the outer face of cylinder of valve rod 2 contracts into the neck in the one side that is close to big excircle step to form the annular space 104 with the one side that hole 103 is close to connecting seat 3 and communicates with big footpath hole 102, ventilation hole 202 and annular space 104 intercommunication.
During the tuber pipe intercommunication, the valve rod moves to the right, and pressure spring 4 is compressed, and the direction at valve rod both ends is carried out through the inner wall contact with the hole 103 of valve body 1 and connecting seat 3 respectively to the valve rod both ends, and its middle part moves to the right along the valve rod along FIG 1 axis to make the valve rod be located the neck and keep away from the excircle of big excircle step one side and the inboard contact of annular space 104, thereby lead to the centre that the valve rod removed, promote valve rod mobility stability.
Further, the neck part is transited to the constant diameter outer circular surface of the valve rod 2 through a conical surface, and the annular space 104 is communicated with the large diameter hole 102 through a conical hole.
The installation of the valve port rubber is implemented as follows: as shown in fig. 1, a plurality of inner annular grooves 105 are formed on the wall of the main hole 201, and a plurality of outer annular protrusions are protruded from the outer cylindrical surface of the valve port rubber 8, and each of the outer annular protrusions is engaged with one of the inner annular grooves 105. Carry out valve port rubber 8's axial positioning and radial support through a plurality of interior annular grooves 105 and outer ring bulge structure, both for valve port rubber's installation provides convenience and rapidity, promoted the stability of valve port rubber 8 position of detachable installation again, be convenient for its relevant operation to go on smoothly.
As shown in fig. 5, the valve port rubber 8 is embedded in a step hole at the left end of the valve rod 2, when the valve port rubber 8 is connected, the two valve port rubbers 8 are tightly attached and sealed under the combined action of the pressure of the approaching hook and the pressure of the pressure spring, and the valve port rubber 8 and the valve rod 2 are also tightly attached and pressed and sealed under the action of the pressure of the approaching hook and the pressure of the pressure spring.
Furthermore, the outer side groove wall of the inner annular groove 105 farthest from the connecting seat 3 penetrates outwards and is communicated with the outside, one side of the valve port rubber 8 far away from the connecting seat 3 protrudes outwards to form a spherical surface, and the diameter of an inner hole on one side of the valve port rubber 8 far away from the connecting seat 3 is smaller than that of an inner hole on the other side. One side of the valve port rubber 8, which is far away from the connecting seat 3, protrudes outwards to form a spherical surface, so that the contact part between two valve port rubbers 8 which need to be closely connected is gradually increased outwards from the center along the radial direction, the extrusion force of the contact part close to the center is the largest, and the sealing performance of the contact part between the valve port rubbers 8 is improved. Simultaneously, keep away from the hole diameter of the little opposite side of hole diameter of connecting seat 3 one side on the valve port rubber 8 to increase the radial thickness that is close to contact site one side between the valve port rubber 8 through extending valve port rubber 8 inwards, thereby resist the deformation that contact site between the valve port rubber 8 kept away from each other because of mutual extrusion, guarantee the extrusion force of the contact site between the valve port rubber 8 then, guarantee the leakproofness between it.
The inner cavity of the connecting seat 3 is specifically as follows: as shown in fig. 1, the inner cavity of the connecting seat 3 is a third-stage stepped hole, the largest-diameter hole thereof is an air inlet cavity 301, the smallest-diameter hole thereof is an air inlet end hole 302, the elastic element 4 is a pressure spring, one end of the elastic element is sleeved on a small shaft body protruding outwards from the large outer circle step, the other end of the elastic element is inserted into a middle-diameter hole of the third-stage stepped hole, and the two ends of the elastic element are respectively abutted to the end surface of the large outer circle step and the end surface of the bottom of the middle-diameter hole.
One end of the valve body 1, which is close to the connecting seat 3, protrudes outwards to form a boss, and the excircle of the boss is matched with the inner wall of the air inlet cavity 301.
The big hole of connecting seat 3 inner chamber, the chamber of admitting air promptly is a boss excircle with 1 right-hand member of valve body and is little clearance fit, can guarantee connecting seat 3 and 1 axiality of valve body, and connecting seat 3 left end face is hugged closely with 1 terminal surface of valve body to fasten connecting seat 3 and valve body 1 together with hexagon socket head cap screw A9.
Example 3
In this embodiment, the elastic member 4 is implemented as follows:
the end part of the valve rod, which is positioned in the inner cavity of the connecting seat 3, is provided with a plurality of mounting holes which are uniformly distributed along the circumference of the axis of the valve rod, the inner wall of the connecting seat 3, which is opposite to the end surface of the valve rod, is provided with positioning holes which are consistent with the distribution mode of the mounting holes, the mounting holes and the positioning holes are in one-to-one correspondence, and a jacking spring is arranged between the mounting holes and the positioning holes, and the two ends of the jacking spring are respectively inserted into the positioning holes and the mounting holes.
Like this, at the position of a needs elastic component spring part of a plurality of functions, the structure unanimity, and it is along valve rod axis evenly distributed to when promoting valve rod atress homogeneity, have a plurality of same parts to provide based on the elasticity demand at same position, thereby solved effectively when one of them elastic component became invalid, can not lead to the elasticity of this position to become invalid, guaranteed that relevant operation goes on smoothly.
Example 4
A coupler is a tight-lock coupler, and the wind pipe connector of the coupler is the wind pipe connector in the above embodiment, as shown in fig. 4. In fig. 4, 5 and 6, the wind pipe connector is placed on the coupler 10 in the position shown in the figure, the valve port rubber 8 is forward, the valve body 1 on the wind pipe connector is fixed on the coupler 10 by a hexagon socket head cap screw B11, and the valve rod 2 and the valve port rubber 8 at the front end of the wind pipe connector protrude out of the front end surface of the coupler 10.
The specific installation of the wind pipe connector is as follows:
the one end of keeping away from connecting seat 3 on valve body 1 excircle is provided with the shaft shoulder, and the one side that the connecting seat 3 was kept away from to the shaft shoulder is the path end. The coupler is provided with an assembly hole matched with the small-diameter end on one side of the shaft shoulder, the coupler is matched with the shaft shoulder in a blocking mode through the assembly hole, the outer circle of the valve body 1 protrudes outwards to form a connecting flange, and the tail end of the rod part of the inner hexagonal socket head cap screw B11 penetrates through the coupler and then is in threaded connection with the connecting flange, so that the wind pipe connector is fixed on the coupler.
The inner hole of the right end of the connecting seat 3 is a taper hole, the outer cylindrical surface is a fine thread, and the connecting seat is an air pipe connector which is convenient for air pipe connection.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The air duct connector for the tight-lock type car coupler is characterized by comprising a valve rod (2), a valve body (1) with an inner hole (103) matched with the outer circular surface of one end of the valve rod (2) and in circumferential sealing fit with the outer circular surface, a connecting seat (3) sleeved on the large outer circular step at the other end of the valve rod (2) and fixedly connected with the valve body (1), an elastic piece (4) for elastically abutting the valve rod (2) against the connecting seat (3) and a sealing gasket (5) for sealing the end surface of the large outer circular step and the end surface of the valve body (1), wherein one end of the valve rod (2) far away from the connecting seat (3) is provided with valve port rubber (8), and the valve rod (2) is provided with a main hole (201) one end of which is communicated with the outside through an inner hole of the valve port rubber (8) and the other end of which is communicated with the outer circular surface of the valve rod (2) through a radial vent hole (202);
under the pre-pressure action of the elastic piece (4), the cylindrical end surface of the valve rod (2) is tightly attached to the sealing gasket (5) to block the communication between the vent hole (202) and the communication hole (203) to realize sealing.
2. The wind pipe connector for the tight-lock coupler according to claim 1, wherein an outer cylindrical surface of a large outer circular step of the valve rod (2) is matched with an air inlet cavity (301) of the connecting seat (3), the valve rod (2) can axially slide in the air inlet cavity (301) of the connecting seat (3), a communication hole (203) is formed in the large outer circular step and located on the outer side of the sealing gasket (5), and under the pressure action of the elastic element (4), the cylindrical end surface of the valve rod (2) is tightly attached to the sealing gasket (5) to block the communication of an air passage between the ventilation hole (202) and the communication hole (203), so that sealing is achieved.
3. The wind pipe connector for the tight-lock coupler according to claim 1, wherein the sealing gasket (5) is of an annular structure and is installed in an annular groove (101) on the end face of the valve body (1), the cross section of the sealing gasket (5) is rectangular, and the width of the annular groove (101) on the end face, which is close to the connecting seat (3), is larger than that of the other end.
4. The wind pipe connector for the tight-lock coupler according to claim 1, wherein a large-diameter hole (102) for surrounding the valve rod (2) is formed in the middle of the hole wall of an inner hole (103) of the valve body (1) matched with the valve rod (2) and on one side close to the connecting seat (3), the outer cylindrical surface of the valve rod (2) is contracted into a neck part on one side close to the large outer circular step, an annular space (104) communicated with the large-diameter hole (102) is formed on one side close to the connecting seat (3) with the inner hole (103), and the vent hole (202) is communicated with the annular space (104).
5. The wind pipe connector for the tight-lock coupler according to claim 4, wherein the neck portion is transited to the outer circular surface with the same diameter of the valve rod (2) through a conical surface, and the annular space (104) is communicated with the large-diameter hole (102) through a tapered hole.
6. The draft tube connector for a coupler according to claim 1, wherein a plurality of inner annular grooves (105) are formed on the wall of the main bore (201), and a plurality of annular protrusions are formed on the outer cylindrical surface of the valve port rubber (8), each of the annular protrusions being engaged with a corresponding one of the inner annular grooves (105).
7. The wind pipe connector for the tight-lock coupler according to claim 6, wherein the outer groove wall of the inner annular groove (105) farthest from the coupling seat (3) penetrates outward and communicates with the outside, one side of the valve port rubber (8) far away from the coupling seat (3) protrudes outward to form a spherical surface, and the inner hole diameter of one side of the valve port rubber (8) far away from the coupling seat (3) is smaller than that of the other side.
8. The air duct connector for the tight-lock coupler according to claim 1, wherein the inner cavity of the connecting base (3) is a three-step stepped hole, the largest diameter hole is an air inlet cavity (301), the smallest diameter hole is an air inlet end hole (302), the elastic member (4) is a compression spring, one end of the compression spring is sleeved on a small shaft body protruding outwards from the large outer circular step, the other end of the compression spring is inserted into a middle diameter hole of the three-step stepped hole, and the two ends of the compression spring are respectively abutted against the end surface of the large outer circular step and the bottom end surface of the middle diameter hole.
9. The air duct connector for the tight-lock coupler according to any one of claims 1 to 8, wherein one end of the valve body (1) close to the connecting seat (3) protrudes outwards to form a boss, and the outer circle of the boss is matched with the inner wall of the air inlet cavity (301).
10. A coupler is a tight-lock coupler, and the wind pipe connector of the coupler is the wind pipe connector of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122777325.9U CN216307025U (en) | 2021-11-12 | 2021-11-12 | Wind pipe connector for tight-lock coupler and coupler thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122777325.9U CN216307025U (en) | 2021-11-12 | 2021-11-12 | Wind pipe connector for tight-lock coupler and coupler thereof |
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| Publication Number | Publication Date |
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| CN216307025U true CN216307025U (en) | 2022-04-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122777325.9U Active CN216307025U (en) | 2021-11-12 | 2021-11-12 | Wind pipe connector for tight-lock coupler and coupler thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114001216A (en) * | 2021-11-12 | 2022-02-01 | 成都肯耐特轨道交通装备有限公司 | Wind pipe connector for tight-lock coupler and coupler thereof |
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2021
- 2021-11-12 CN CN202122777325.9U patent/CN216307025U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114001216A (en) * | 2021-11-12 | 2022-02-01 | 成都肯耐特轨道交通装备有限公司 | Wind pipe connector for tight-lock coupler and coupler thereof |
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| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221201 Address after: 215600 No. 38, Xionghua Road, Hengjing village, Tangqiao town, Zhangjiagang City, Suzhou City, Jiangsu Province Patentee after: Jiangsu Kenaite Rail Equipment Technology Co.,Ltd. Address before: No. 319, Xingye Avenue, East Industrial Zone, Xindu District, Chengdu, Sichuan 610500 Patentee before: Chengdu kenaite Rail Transit Equipment Co.,Ltd. |
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