CN214999615U - Anti-tripping mechanism of connector - Google Patents

Abstract

The utility model provides a connector anticreep is detained mechanism, including the front end overcoat, first elasticity reset assembly, knock pin and blow-off valve, blow-off valve periphery is through first elasticity reset assembly fixed connection to front end overcoat inner circle, and the one end fixed connection of blow-off valve is to the second end of axis external member, a plurality of knock pins of side wall mounting of blow-off valve, and a plurality of knock pins along the radial equipartition of blow-off valve, the upper end contact of every knock pin is connected to the inside wall of front end overcoat, the inside medium pressure of blow-off valve is the power of knock pin displacement, axial displacement is followed to the knock pin. Connector anticreep mechanism, the inside medium pressure of blow-off valve conducts to the lower extreme of knock pin through the second mounting hole, the knock pin pressurized slides in the second mounting hole, the inside wall that the upper end contact of knock pin is connected to the front end overcoat forms sliding friction's location structure, increases the security of operation, and the power supply of knock pin is the internal pressure of gathering the blow-off valve, the synchronism is high.

Description

Anti-tripping mechanism of connector

Technical Field

The utility model belongs to the technical field of the connector, especially, relate to a connector anti-tripping mechanism.

Background

High-pressure medium needs the dedicated connector to be filled case and medium tank butt joint when filling, then carries out high-pressure medium through opening and shutting of connector and fills and close, pipeline fixed connection is passed through to the one end of connector among the prior art to the medium tank, the other end of connector passes through the pipe end of jack catch joint by the case of filling, the inside valve that sets up of connector, the opening and shutting of medium filling route is realized to the valve that opens and shuts promptly, in high-pressure medium filling process, the joint part of jack catch and filling case pipe end receives the pressure of high-pressure medium all the time, if the jack catch joint is not hard up, can flick jack catch and this pipe end rapidly, endanger operating personnel's safety.

Disclosure of Invention

In view of this, the utility model aims at providing a connector anti-tripping device to solve the connector jack catch joint insecure when using, cause the problem of operation accident.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

the utility model provides a connector anti-tripping mechanism, including the front end overcoat, first elasticity reset assembly, knock pin and blow-off valve, blow-off valve periphery is through first elasticity reset assembly fixed connection to front end overcoat inner circle, and the one end fixed connection of blow-off valve is held to the second of axis external member, a plurality of knock pins of side wall mounting of blow-off valve, and the radial equipartition of blow-off valve is followed to a plurality of knock pins, the upper end contact of every knock pin is connected to the inside wall of front end overcoat, the inside medium pressure of blow-off valve is the power of knock pin displacement, the knock pin is along axial displacement.

Furthermore, an eccentric operation shaft is installed at the first end of the middle shaft sleeve, one end of the eccentric operation shaft is connected to the inside of the discharge valve in a sliding mode, and the periphery of the eccentric operation shaft is connected to one end of the front end outer sleeve in a sliding mode.

Further, the periphery of the eccentric operation shaft is in a cam structure.

Further, first elastic reset assembly includes first retaining ring, first spring and second retaining ring, first retaining ring and second retaining ring parallel arrangement each other, first retaining ring and second retaining ring all are located the inside of front end overcoat, first retaining ring inner circle joint is to the emission valve peripherally, the peripheral joint of second retaining ring is to front end overcoat inner circle, the emission valve periphery sets up first spring, first spring is located between first retaining ring and the second retaining ring, the both ends of first spring contact respectively and are connected to the one end of first retaining ring, the one end of second retaining ring.

Furthermore, a plurality of second mounting holes are formed in the side wall of the discharge valve and are uniformly distributed along the radial direction of the discharge valve, the second mounting holes are communicated with an internal gas circuit of the discharge valve, and a jacking pin is mounted in each second mounting hole.

Furthermore, the cross section of the ejector pin and the cross section of the second mounting hole are both of a T-shaped structure, the peripheral size of the ejector pin is matched with the inner peripheral size of the second mounting hole, and the periphery of the ejector pin is connected into the second mounting hole in a sliding mode.

Furthermore, the periphery of the ejector pin is sleeved with a sealing ring, and the sealing ring is located in the second mounting hole.

Compared with the prior art, connector anticreep detains mechanism have following beneficial effect: the inside medium pressure of bleeder valve conducts the lower extreme to the knock pin through the second mounting hole, and the knock pin pressurized slides in the second mounting hole, and the upper end contact of knock pin is connected to the inside wall of front end overcoat and forms sliding friction's location structure, increases the security of operation, and the power supply of knock pin is the internal pressure of gathering the bleeder valve, and the synchronism is high.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

fig. 1 is a schematic structural diagram of a connector anti-tripping mechanism applied to a hydrogenation gun according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of a hydrogenation lance in accordance with an embodiment of the present invention;

fig. 3 is a schematic structural diagram of the assembly of the middle shaft kit and the eccentric operating shaft according to the embodiment of the present invention;

fig. 4 is an exploded view of an eccentric operating shaft according to an embodiment of the present invention;

fig. 5 is a sectional view of the assembly of the middle shaft assembly and the eccentric operating shaft according to the embodiment of the present invention;

fig. 6 is an exploded view of the front end housing and bleed valve assembly according to an embodiment of the present invention;

FIG. 7 is a cross-sectional view of a front end housing and bleed valve assembly according to an embodiment of the present invention;

fig. 8 is an exploded view of a discharge valve according to an embodiment of the present invention;

fig. 9 is a cross-sectional view of a discharge valve according to an embodiment of the present invention;

fig. 10 is an exploded view of an inlet valve according to an embodiment of the present invention;

fig. 11 is a cross-sectional view of an inlet valve according to an embodiment of the present invention;

fig. 12 is a front view of a rear connecting seat according to an embodiment of the present invention;

fig. 13 is an exploded view of the assembly of the switching slide valve and the middle shaft assembly according to the embodiment of the present invention;

fig. 14 is a cross-sectional view of an assembly of a switching slide valve and a bottom bracket assembly according to an embodiment of the present invention.

Description of reference numerals:

1-an eccentric operating shaft; 11-a handle; 12-rotating the outer sleeve; 13-a first medial axis; 14-an eccentric shaft; 15-axle pin; 16-middle shaft fixing seat; 17-eccentric slide block; 2-middle shaft external member; 3-switching the slide valve; 31-a third valve body; 32-a fourth valve body; 33-a second valve seat; 4-a discharge valve; 41-claw fixing seat; 42-a first piston; 43-first valve seat; 44-a second spring; 45-intermediate sleeve; 5-an inlet valve; 51-a feed connection; 52-discharge fitting; 53-rear connecting seat; 54-a support; 55-a third spring; 56-ventilating block; 57-a second piston; 58-sealing disk; 59-a second valve body; 510-a transition block; 511-the feed path; 512-a discharge path; 513-gas tank; 6-front end outer sleeve; 61-knock pin; 62-a first elastic return assembly; 621-a first retaining ring; 622-second collar; 623-a first spring; 7-external connection pipe; 8-protective sleeve; 10-claw grip.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

As shown in fig. 1 to 14, the connector anti-trip mechanism is applied to a hydrogenation gun, the hydrogenation gun comprises a switch slide valve 3, a discharge valve 4 and an inlet valve 5, an eccentric operating shaft 1 is installed at a first end of a center shaft suite 2, the discharge valve 4 is fixedly installed at a second end of the center shaft suite 2, the inlet valve 5 is fixedly installed at a third end of the center shaft suite 2, a front end outer sleeve 6 is sleeved on the periphery of the discharge valve 4, an anti-return mechanism is arranged on the periphery of the discharge valve 4 and an inner ring of the front end outer sleeve 6, a protective sleeve 8 is fixedly installed on the periphery of the inlet valve 5, the switch slide valve 3 is arranged inside the center shaft suite 2, the switch slide valve 3, the inlet valve 5 and an exhaust valve are all arranged coaxially, one end of the eccentric operating shaft 1 is slidably connected to the periphery of the switch slide valve 3, one end of the front end outer sleeve 6 is connected to the periphery of the eccentric operating shaft 1 in a contact manner, and the rotating eccentric operating shaft 1 constitutes displacement power of the switch slide valve 3, The displacement power of the front end outer sleeve 6, the switch slide valve 3 and the front end outer sleeve 6 respectively displace along the axial direction, one end of the switch slide valve 3 is connected to the inside of one end of the inlet valve 5 in a contact manner, the other end of the inlet valve 5 is respectively provided with a feeding connector 51 and a discharging connector 52, the feeding connector 51 and the discharging connector 52 are arranged in parallel, a pipeline of the feeding connector 51 is connected to a compressed gas storage tank, the discharging connector 52 is connected to a waste gas recovery tank, the other end of the switch slide valve 3 is elastically connected to the inside of one end of the discharge valve 4, the other end of the discharge valve 4 is clamped with the periphery of the external connecting pipe 7, the front end outer sleeve 6 which displaces along the axial direction forms an opening and closing structure of the external connecting pipe 7, in practical use, when the compressed gas is filled, a worker rotates the eccentric operation shaft 1, the front end outer sleeve 6 displaces along the axial direction, the switch slide valve 3 displaces along the axial direction, and the switch slide valve 3 is influenced by the eccentric reducing of the eccentric operation shaft 1, the switch slide valve 3 is displaced along the axial direction, in the process of the axial displacement of the switch slide valve 3, the switch slide valve 3 firstly closes a passage of the feeding connector 51 to the inside of the inlet valve 5, then opens a passage of the discharging connector 52 in the inside of the inlet valve 5, the process is used for discharging residual compressed gas in the device, in the process of the axial displacement of the switch slide valve 3, the front end outer sleeve 6 is synchronously displaced axially under the rotating action of the eccentric operation shaft 1, when the front end outer sleeve 6 is displaced to a critical point, the external connecting pipe 7 is popped out, the discharging valve 4 is closed, the discharge of the compressed gas is completed, and meanwhile, no residual compressed gas is left in the device, the influence on the environment is reduced, and the operation safety is guaranteed.

The eccentric operation shaft 1 comprises a handle 11, a rotating outer sleeve 12, a first middle shaft 13, an eccentric shaft 14, a shaft pin 15, a middle shaft fixing seat 16 and an eccentric sliding block 17, a first mounting hole is formed in the first end of the middle shaft suite 2, the periphery of the middle shaft fixing seat 16 is fixedly mounted in the first mounting hole, the eccentric shaft 14 is eccentrically arranged at one end of the first middle shaft 13, the eccentric sliding block 17 is sleeved on the periphery of the eccentric shaft 14, a sliding groove is formed in the periphery of the switch sliding valve 3, the eccentric sliding block 17 is located in the sliding groove, the other end of the first middle shaft 13 penetrates through the middle shaft fixing seat 16 and then is fixedly connected to the lower end of the rotating outer sleeve 12, the handle 11 is mounted on the periphery of the rotating outer sleeve 12, and when the first middle shaft 13 rotates, the eccentric sliding block 17 moves in an arc-shaped track along the axis of the first middle shaft 13 as the center of the circle, so that the rotating torque of the first middle shaft 13 is converted into the linear displacement power of the switch sliding valve 3;

the first axis 13 is provided with a pin hole, a shaft pin 15 is installed in the pin hole, the periphery of one end of the shaft pin 15 is in contact connection with the upper end of the axis fixing seat 16, a clamping table is arranged on the axis fixing seat 16 and arranged along the side wall of the upper end of the axis fixing seat 16, the clamping table is of an arc-shaped structure, the periphery of one end of the shaft pin 15 is in contact connection with one end of the clamping table, the clamping table of the arc-shaped structure forms a limiting structure of the shaft pin 15, the one end of the shaft pin 15 is fixedly installed on the first axis 13, the clamping table limits the rotation degree and the rotation direction of the first axis 13, misoperation of workers is prevented, damage to the device and operation accidents are caused, and the reliability of operation is improved.

As shown in fig. 3, the rotating outer sleeve 12 is of a cam structure, one end of the front end outer sleeve 6 is connected to the periphery of the rotating outer sleeve 12 in a contact mode, the rotating outer sleeve 12 is changed in diameter through the radian of the outer edge to form the axial displacement distance of the front end outer sleeve 6, the front end outer sleeve 6 is synchronously displaced in the displacement process of the switching slide valve 3, the synchronism of each component is increased, one operation of a worker is enabled to be completed, namely, the gas cutoff of the compressed gas degree, the exhaust gas in the device is exhausted, and the device is separated from the external connecting pipe 7.

One end of the discharge valve 4 is provided with a clamping jaw 10, the first end of the external connecting pipe 7 is clamped and connected to the discharge valve 4 through the clamping jaw 10, the inner wall of the front end outer sleeve 6 is provided with a slope groove matched with the clamping jaw 10, the slope groove and the clamping jaw 10 are matched in the prior art, the side wall of the discharge valve 4 is provided with a plurality of second mounting holes, the second mounting holes are uniformly distributed along the radial direction of the discharge valve 4 and are communicated with an internal gas circuit of the switch slide valve 3, the periphery of the ejector pin 61 is hermetically connected into the second mounting holes, when the switch slide valve 3 is communicated with a gas storage tank gas circuit through the inlet valve 5 and the feed connector 51, compressed gas inside the switch slide valve 3 is pressed to the lower end of the ejector pin 61, the ejector pin 61 is pressed to slide in the second mounting holes, the upper end of the ejector pin 61 is in contact with and connected to the inner side wall of the front end outer sleeve 6 to form a positioning structure of sliding friction, so that the internal pressure of the switch slide valve 3 is a power source in which the upper end of the ejector pin 61 is in contact and connected to the inner side wall of the front end outer sleeve 6, the upper end of the ejector pin 61 is connected to the inner side wall of the front end outer sleeve 6 in a contact mode to form an anti-withdrawal mechanism of the front end outer sleeve 6, the front end outer sleeve 6 is fixed in position, namely the fact that the external connecting pipe 7 and the front end outer sleeve 6 are connected in place, the clamping claws 10 and the periphery of the external connecting pipe 7 are clamped in place, the external connecting pipe 7 and the first piston 42 inside the discharge valve 4 are in contact in place is represented, accidents such as ejection of the external connecting pipe 7 and gas leakage between the external connecting pipe 7 and the discharge valve 4 during operation are prevented, and operation safety is improved.

The inner ring of the front end outer sleeve 6 is provided with a first elastic reset assembly 62, the first elastic reset assembly 62 comprises a first retaining ring 621, a first spring 623 and a second retaining ring 622, the first retaining ring 621 and the second retaining ring 622 are arranged in parallel, the first retaining ring 621 and the second retaining ring 622 are both positioned inside the front end outer sleeve, the inner ring of the first retaining ring 621 is clamped to the periphery of the discharge valve 4, the periphery of the second retaining ring 622 is clamped to the inner ring of the front end outer sleeve 6, the periphery of the discharge valve 4 is provided with the first spring 623, the first spring 623 is positioned between the first retaining ring 621 and the second retaining ring 622, two ends of the first spring 623 are respectively connected to one end of the first retaining ring 621 and one end of the second retaining ring 622 in a contact manner, the first spring 623 is elastic reset power of the relative position of the front end outer sleeve 6 and the middle shaft sleeve 2, and the first spring 623 ensures that one end of the front end outer sleeve 6 is always kept attached to the outer edge of the rotary outer sleeve 12.

The cross section of the ejector pin 61 and the cross section of the second mounting hole are both of a T-shaped structure, the peripheral size of the ejector pin 61 is matched with the inner peripheral size of the second mounting hole, the ejector pin 61 is connected into the second mounting hole in a peripheral sliding mode, as shown in fig. 7, the ejector pin is connected into the second mounting hole in a clamping mode through the T-shaped structure in the peripheral mode, the ejector pin slides outwards in the axial direction of the inner ring of the second mounting hole in the peripheral mode, the ejector pin is prevented from falling into the discharging valve 4, in order to guarantee the air tightness of the part, the sealing ring is sleeved on the periphery of the ejector pin 61, and the sealing ring is located in the second mounting hole.

The discharge valve 4 comprises a claw 10 fixing seat 41, a first piston 42, a first valve seat 43, a second spring 44 and an intermediate sleeve 45, wherein the second end of the middle shaft sleeve 2 is hermetically connected to an inner ring at one end of the claw 10 fixing seat 41, a front end outer sleeve 6 is arranged on the periphery of the claw 10 fixing seat 41, the periphery of the first valve seat 43 is hermetically installed on the inner ring of the claw 10 fixing seat 41, the periphery of the first piston 42 is slidably connected to the inner ring of the claw 10 fixing seat 41, the first end of the first piston 42 is clamped to the inner ring at the first end of the first valve body, the outer edge of the first end of the first piston 42 is in contact sealing with the inner edge at the first end of the first valve seat 43 to form a one-way valve structure, the second end of the first piston 42 sequentially passes through the first valve seat connecting pipe 43 and the claw 10 fixing seat 41 to be in contact connection with one end of the outer connecting pipe 7, the periphery of one end of the intermediate sleeve 45 is hermetically connected to the inner ring of the claw 10 fixing seat 41, the other end of the intermediate sleeve 45 is fixedly sealed to the inner ring at the second end of the middle shaft sleeve 2, the middle sleeve 45 is positioned between the second end of the middle shaft sleeve component 2 and the first valve seat 43, the first piston 42, the first valve seat 43, the middle sleeve 45 and the external connecting pipe 7 are coaxially arranged, the second spring 44 is arranged inside the middle sleeve 45, one end of the second spring 44 is clamped to the first end of the first piston 42, the other end of the second spring 44 is fixedly connected to one end of the switch slide valve 3, the second spring 44 is elastic reset power of axial displacement of the piston, a plurality of second vent holes are formed in the periphery of the first piston 42 and are radially and uniformly distributed along the periphery of the first piston 42, when a worker installs the external connecting pipe 7 to one end of the claw 10 fixing seat 41, one end of the claw 10 is clamped to the periphery of the external connecting pipe 7, meanwhile, an outer side boss of the claw 10 is matched with a slope groove of the front end outer sleeve 6 to limit the external connecting pipe 7, the claw 10 is in the prior art, one end of the external connecting pipe 7 is in compression joint with one end of the first piston 42, the first piston 42 moves along the axial direction, at the moment, the axial thrust of the external connecting pipe is the displacement power of the first piston 42, the inside of the first piston 42 is communicated with the inside of the switch slide valve 3 sequentially through the second vent hole and the middle sleeve 45, when the first piston 42 moves axially under the elastic action of the second spring 44 in the process of removing the external connecting pipe 7, the outer edge of the first end of the first piston 42 is in contact with the inner edge of the first end of the first valve seat 43 and sealed to form the first piston 42 which is disconnected from the air path of the switch slide valve 3, the side wall of the middle sleeve 45 is provided with the first vent hole, the periphery of the middle sleeve 45 and the inner ring of the claw 10 fixing seat 41 are provided with a first gap, the second mounting hole is communicated to the inside of the switch slide valve 3 sequentially through the first gap, the first vent hole and the inside of the middle sleeve 45, and therefore the second mounting hole and the inside of the switch slide valve 3 are in an isobaric mode.

The inlet valve 5 comprises a rear connecting seat 53, a second piston 57, a ventilation block 56 and a second valve body 59, a protective sleeve 8 is fixedly installed on the periphery of the rear connecting seat 53, a feeding connector 51 and a discharging connector 52 are respectively installed at one end of the rear connecting seat 53, the inner ring at the other end of the rear connecting seat 53 is hermetically connected to the periphery of the third end of the middle shaft sleeve component 2, a support 54, the ventilation block 56 and the second valve body 59 are respectively and fixedly installed inside the rear connecting seat 53, the support 54, the ventilation block 56 and the second valve body 59 are coaxially arranged, the support 54 is of a barrel structure, two ends of the ventilation block 56 are respectively and hermetically connected to one end of the support 54 and one end of the second valve body 59, one end of the second piston 57 is located inside the support 54, the other end of the second piston 57 passes through the ventilation block 56 and then is located inside the second valve body 59, a ring platform is arranged on the periphery of the second piston 57, the outer edge of one end of the ring platform is in contact and sealed with the inner edge of one end of the second valve body 59, a plurality of third vent holes are formed in the periphery of the second piston 57 and are radially and uniformly distributed along the second piston 57, a plurality of fourth vent holes are formed in the periphery of the vent block 56 and are radially and uniformly distributed along the vent block 56, the third vent holes are formed in one end of the ring platform, the fourth vent holes are formed in the other end of the ring platform, the inner diameter of the ring platform is smaller than that of the vent block 56, a third spring 55 is arranged in the support 54, two ends of the third spring 55 are fixedly connected to the bottom of the support 54 and one end of the second piston 57 respectively, the third spring 55 is elastic reset power of the second piston 57, the other end of the second piston 57 is in contact sealing with the switch slide valve 3 through a sealing disc 58, the sealing disc 58 is of an annular structure, the interior of the switch slide valve 3 is communicated with the third vent holes through the interior of the sealing disc 58, the sealing disc 58 is located in the second valve body 59, a feeding passage 511 is formed in the rear connecting seat 53, one end of the feed connector 51 is fixedly installed at the air inlet end of the feed passage 511, the air outlet end of the feed passage 511 is communicated with the fourth vent hole, the switch slide valve 3 is axially displaced by the rotation torque of the eccentric operating shaft 1, one end of the switch slide valve 3 is hermetically connected with the sealing disc 58, meanwhile, the axially displaced switch slide valve 3 drives the second piston 57 to axially displace through the sealing disc 58, the third spring 55 is compressed, the third vent hole is communicated with the fourth vent hole, namely, the inside of the gas storage tank is communicated to the inside of the switch slide valve 3 through the feed connector 51, the feed passage 511, the fourth vent hole, the third vent hole, the inside of the second piston 57 and the inside of the sealing disc 58 in sequence, when the switch slide valve 3 is axially reversely displaced, the second piston 57 is elastically and rapidly displaced by the third spring 55, the outer edge of one end of the ring platform is in contact with and sealed with the inner edge of one end of the second valve body 59, and the third vent hole is not communicated with the fourth vent hole, i.e. to break the connection between the interior of the tank and the interior of the switching slide 3.

The rear connecting seat 53 is provided with a discharge passage 512, the feeding passage 511 and the discharge passage 512 do not interfere with each other, the inner wall of the rear connecting seat 53 is provided with an air groove 513, the air groove 513 is positioned at the third end of the middle shaft sleeve member 2, the side wall of the second valve body 59 is provided with a fifth vent hole, the exhaust end of the discharge passage 512 is provided with a discharge connector 52, the air inlet end of the discharge passage 512 is communicated to the inside of the second valve body 59 through the air groove 513 and the fifth vent hole in sequence, the axially displaced switch slide valve 3 forms an opening and closing structure of one end of the switch slide valve 3 and the second piston 57, the displacement distances of the switch slide valve 3 and the second piston 57 in the axial displacement are different, the outer edge of one end of the ring platform is in contact and sealed with the inner edge of one end of the second valve body 59 in the process that the switch slide valve 3 is axially reversely displaced, so that the third vent hole and the fourth vent hole are not communicated, the compressed air in the air storage tank does not flow into the second piston 57, at this time, the switch slide valve 3 continues to be reversely displaced, one end of the switch slide valve 3 is disconnected with the sealing disc 58 in the displacement process, the interior of the second piston 57 is communicated with the interior of the waste gas recovery tank through the interior of the second valve body 59, the fifth vent hole, the gas groove 513, the discharge passage 512 and the discharge connector 52, and compressed gas in the second piston 57 is recovered;

the interior of the switch slide valve 3 is communicated to the interior of the waste gas recovery tank through the interior of the second valve body 59, the fifth vent hole, the gas tank 513, the discharge passage 512 and the discharge connector 52, so that the recovery of compressed gas in the switch slide valve 3 is realized;

the air pressure in the second mounting hole, the first gap and the middle sleeve 45 is the same as the air pressure in the switch slide valve 3, so that the compressed air in the second mounting hole, the first gap and the middle sleeve 45 can be recycled;

after the compressed gas inside the switch slide valve 3 is recovered, the gas pressure inside the first piston 42 is greater than the gas pressure inside the switch slide valve 3, the second spring 44 is compressed, the inside of the first piston 42 and the inside of the external connecting pipe 7 are communicated with the switch slide valve 3, and the recovery of the compressed gas inside the first piston 42 and the inside of the external connecting pipe 7 is realized;

a one-way valve is arranged in the receiving device connected with the front end of the external connecting pipe 7, and gas does not leak.

The switching spool 3 includes a third valve body 31, a fourth valve body 32, and a second valve seat 33, the first end periphery of the fourth valve body 32 is fixedly connected to the one end inner ring of the third valve body 31, and the periphery of the third valve body 31 is provided with a sliding chute, the other end of the third valve body 31 is fixedly connected to one end of the second spring 44, the periphery of the third valve body 31 is slidably connected to the inside of the second end of the bottom bracket assembly 2, the periphery of the second valve seat 33 is fixedly connected to the inside of the third end of the bottom bracket assembly 2, the periphery of the fourth valve body 32 is slidably connected to the inner ring of the second valve seat 33, and the outer edge of the second end of the fourth valve body 32 is in contact connection with the inner ring of the first end of the second valve seat 33, the inner ring of the second end of the fourth valve body 32 is in contact connection with one end of the sealing disk 58, a transition block is arranged between the first end of the second valve seat 33 and the second valve body 59, and the periphery of the transition block is fixedly connected to the inner ring of the third end of the bottom bracket shell 2.

The working process of the hydrogenation gun comprises the following steps:

when the hydrogenation gun is not connected with the external connecting pipe 7 in series: the contact surface of the rotating outer sleeve 12 and the front end outer sleeve 6 is in a small diameter state, that is, the distance between the contact surface of the rotating outer sleeve 12 and the front end outer sleeve 6 and the axis of the first central shaft 13 is at a minimum value, at this time, the first spring 623 is in a balanced state, one end of the switching slide valve 3 and the sealing disc 58 are in a disconnected state, at this time, the third vent hole and the fourth vent hole are not communicated, the discharging passage 512 is communicated with the inside of the second piston 57 and the inside of the switching slide valve 3, the first piston 42 is elastically acted by the second spring 44, and the outer edge of the first end of the first piston 42 is in contact sealing with the inner edge of the first end of the first valve seat 43.

When the receiving device needs to be filled with compressed gas: the worker places the external connecting pipe 7 at the rear end of the receiving device at the inner ring of the front end outer sleeve 6 and one end of the discharge valve 4, the worker rotates the handle 11 of the eccentric operating shaft 1, the cam structure of the rotating outer sleeve 12 is changed in diameter, the contact surface of the rotating outer sleeve 12 and the front end outer sleeve 6 is rapidly increased from the axis of the first center shaft 13, the front end outer sleeve 6 is axially displaced, a slope groove in the front end outer sleeve 6 compresses one end of the clamping jaw 10 towards the axis, the clamping jaw 10 is clamped to the periphery of the external connecting pipe 7, and simultaneously one end of the external connecting pipe 7 is displaced towards one end of the first piston 42, in the process of axial displacement of the front end outer sleeve 6, one end of the external connecting pipe 7 is clamped with the exhaust valve through the clamping jaw 10, and one end of the external connecting pipe 7 is hermetically connected with one end of the first piston 42, the first piston 42 is pushed by the axial displacement of the external connecting pipe 7, and the inside of the first piston 42 is communicated with the inside of the switching slide valve 3 through the second vent hole.

The worker continues to rotate the eccentric operating shaft 1, at the moment, the rotating outer sleeve 12 is in an equal-diameter state, namely the size of the contact surface between the rotating outer sleeve 12 and the front end outer sleeve 6 from the axis of the first center shaft 13 is unchanged, the matching state of the front end outer sleeve 6, the clamping jaws 10 and the discharge valve 4 is unchanged, the switch slide valve 3 is continuously influenced by the eccentric torque of the eccentric shaft 14, the switch slide valve 3 moves towards the sealing disc 58, one end of the switch slide valve 3 is firstly in contact with and sealed to one end of the sealing disc 58, the discharge passage 512 is disconnected with the passage in the switch slide valve 3, the switch slide valve 3 drives the second piston 57 to continue to move, the third spring 55 is compressed, the fourth vent is communicated with the third vent, the compressed gas in the gas storage tank sequentially passes through the feeding connector 51, the feeding passage 511, the fourth vent, the third vent, the second vent, the interior of the second piston 57 and the interior of the sealing disc 58, The flow inside the switching slide 3, inside the first piston 42 and inside the outer connecting piece 7 to the receiving device.

Meanwhile, the second mounting hole is in equal pressure with the inside of the switch slide valve 3 through the first vent hole, when compressed gas is filled in the switch slide valve 3, the compressed gas in the switch slide valve 3 is pressed to the lower end of the ejector pin 61, the ejector pin 61 is pressed to slide in the second mounting hole, the upper end of the ejector pin 61 is in contact connection with the inner side wall of the front end outer sleeve 6 to form a positioning structure with sliding friction, the front end outer sleeve 6 is fixed in position, namely the external connecting pipe 7 and the front end outer sleeve 6 are connected in place, the clamping jaw 10 and the periphery of the external connecting pipe 7 are clamped in place, and the external connecting pipe 7 and the first piston 42 in the discharge valve 4 are in contact in place.

When the receiving device is filled with compressed gas: the worker rotates the eccentric operating shaft 1, at this time, the rotating outer sleeve 12 is in an equal diameter state, namely the size of the contact surface of the rotating outer sleeve 12 and the front end outer sleeve 6 from the axle center of the first central shaft 13 is unchanged, the matching state of the front end outer sleeve 6, the clamping jaws 10 and the discharge valve 4 is unchanged, the switch slide valve 3 is continuously influenced by the eccentric torque of the eccentric shaft 14, the switch slide valve 3 moves towards the reverse direction of the sealing disc 58, meanwhile, the compressed third spring 55 elastically resets the second piston 57, the outer edge of one end of the ring platform is in contact and sealed with the inner edge of one end of the second valve body 59, the third vent hole is not communicated with the fourth vent hole, namely, the conduction between the inside of the storage tank and the inside of the switch slide valve 3 is disconnected, the switch slide valve 3 continues to move towards the reverse direction of the sealing disc 58, one end of the switch slide valve 3 is disconnected with the sealing disc 58 in a sealing way, and the inside of the second piston 57 passes through the inside of the second valve body 59, the fifth vent hole, The gas tank 513, the discharge passage 512 and the discharge connector 52 are communicated with the inside of the waste gas recovery tank through gas passages, so that the compressed gas inside the second piston 57 is recovered; the interior of the switch slide valve 3 is communicated to the interior of the waste gas recovery tank through the interior of the second valve body 59, the fifth vent hole, the gas tank 513, the discharge passage 512 and the discharge connector 52, so that the recovery of compressed gas in the switch slide valve 3 is realized; the air pressure in the second mounting hole, the first gap and the middle sleeve 45 is the same as the air pressure in the switch slide valve 3, so that the compressed air in the second mounting hole, the first gap and the middle sleeve 45 can be recycled; after the compressed gas inside the switch slide valve 3 is recovered, the gas pressure inside the first piston 42 is greater than the gas pressure inside the switch slide valve 3, the second spring 44 is compressed, the inside of the first piston 42 and the inside of the external connecting pipe 7 are communicated with the switch slide valve 3, and the recovery of the compressed gas inside the first piston 42 and the inside of the external connecting pipe 7 is realized; a one-way valve is arranged in the receiving device connected with the front end of the external connecting pipe 7, and gas does not leak.

The worker continues to rotate the eccentric operating shaft 1, the rotary outer sleeve 12 is subjected to pneumatic diameter change, the distance between the contact surface of the rotary outer sleeve 12 and the front end outer sleeve 6 and the axis of the first middle shaft 13 is rapidly reduced, the front end outer sleeve 6 is elastically reset by the first spring 623, the external connecting pipe 7 is popped up, the first piston 42 is elastically acted by the second spring 44, and the outer edge of the first end of the first piston 42 is in contact sealing with the inner edge of the first end of the first valve seat 43.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. The anti-tripping mechanism of the connector is characterized in that: including front end overcoat (6), first elasticity reset assembly (62), knock pin (61) and discharge valve (4), discharge valve (4) periphery is through first elasticity reset assembly (62) fixed connection to front end overcoat (6) inner circle, and the one end fixed connection of discharge valve (4) is to the second end of axis external member (2), a plurality of knock pins (61) of side wall mounting of discharge valve (4), and the radial equipartition of discharge valve (4) is followed in a plurality of knock pins (61), the upper end contact of every knock pin (61) is connected to the inside wall of front end overcoat (6), the inside medium pressure of discharge valve (4) is the power of knock pin (61) displacement, knock pin (61) are along axial displacement.

2. The connector trip preventing mechanism of claim 1, wherein: an eccentric operation shaft (1) is installed at the first end of the middle shaft sleeve piece (2), one end of the eccentric operation shaft (1) is connected to the inside of the discharge valve (4) in a sliding mode, and the periphery of the eccentric operation shaft (1) is connected to one end of the front end outer sleeve (6) in a sliding mode.

3. The connector trip preventing mechanism of claim 2, wherein: the periphery of the eccentric operating shaft (1) is in a cam structure.

4. The connector trip preventing mechanism of claim 1, wherein: first elastic reset subassembly (62) includes first retaining ring (621), first spring (623) and second retaining ring (622), first retaining ring (621) and second retaining ring (622) parallel arrangement each other, first retaining ring (621) and second retaining ring (622) all are located the inside of front end overcoat (6), first retaining ring (621) inner circle joint is peripheral to discharge valve (4), second retaining ring (622) periphery joint is to front end overcoat (6) inner circle, discharge valve (4) periphery sets up first spring (623), first spring (623) are located between first retaining ring (621) and second retaining ring (622), the both ends of first spring (623) contact the one end of being connected to first retaining ring (621), the one end of second retaining ring (622) respectively.

5. The connector trip preventing mechanism of claim 1, wherein: the side wall of the discharge valve (4) is provided with a plurality of second mounting holes which are uniformly distributed along the radial direction of the discharge valve (4), the second mounting holes are communicated with an internal gas circuit of the discharge valve (4), and each second mounting hole is internally provided with a knock pin (61).

6. The connector trip preventing mechanism of claim 5, wherein: the cross section of the ejector pin (61) and the cross section of the second mounting hole are both of a T-shaped structure, the peripheral size of the ejector pin (61) is matched with the inner peripheral size of the second mounting hole, and the periphery of the ejector pin (61) is connected into the second mounting hole in a sliding mode.

7. The connector trip preventing mechanism of claim 5, wherein: the periphery of the ejector pin (61) is sleeved with a sealing ring, and the sealing ring is located in the second mounting hole.

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