Deviation rectifying device for bidirectional synchronous closure

Abstract

The utility model discloses a two-way synchronous cut-off deviation rectifying device which comprises a male plug unit and a female plug unit, the male plug unit comprises an upper supporting seat and an upper shell which are connected in a sleeved mode, an upper valve element is arranged in the upper shell in an elastic connection mode, and a first sealing ring is arranged on the upper valve element; each female plug unit comprises a lower supporting seat provided with a deviation rectifying sleeve, a middle shell connected with the deviation rectifying sleeve in a sleeved mode and a lower shell connected with the middle shell in a communicated and sleeved mode, a lower valve element stretching into the middle shell is elastically arranged in the lower shell, an ejector rod stretching into the lower valve element is arranged on the lower shell, and a second sealing ring is arranged on the ejector rod. The upper shell is arranged to extrude the lower valve element, the ejector rod abuts against the upper valve element, connection and communication are achieved, meanwhile, no gap is reserved between the ejector rod and the upper valve element in abutting connection, and the arranged error correction sleeve is used for adapting to deviation of installation movement and guaranteeing stability of communication. And during disassembly, automatic ejection is realized by utilizing the elastic force of the elastic connecting piece, and meanwhile, the sealing ring is used for synchronously sealing the communicated position, so that the purpose of no leakage during disassembly is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline connection, in particular to a deviation-correcting device for bidirectional synchronous interception. Background Art

[0002] At present, the battery pack of new energy vehicles cannot be replaced quickly as a whole, and the connection method between the battery pack cooling pipeline and the vehicle pipeline is one of the main reasons for this problem. Commonly, the battery pack cooling pipeline is connected to the vehicle pipeline mainly by a flange joint and fixed to the vehicle body by bolts. This is not only cumbersome to install, but also requires high position deviation between the flange joint and the mounting hole on the vehicle body; in addition, when replacing the battery pack, the coolant must be drained first to prevent the coolant from leaking when the pipeline is disconnected, which makes the replacement cycle longer and the replacement safety poor. Utility Model Content

[0003] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the utility model is to provide a two-way synchronous interception correction device which can tolerate larger installation position deviations and can intercept and prevent overflow.

[0004] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide a two-way synchronous interception correction device, including a male plug unit and a female plug unit, the male plug unit includes an upper support seat and an upper shell body which are sleeved together, an upper valve core is elastically connected in the upper shell body, and a first sealing ring is provided on the upper valve core; the female plug unit includes a lower support seat with a correction sleeve, a middle shell body sleeved with the correction sleeve, and a lower shell body which is sleeved in communication with the middle shell body, a lower valve core which extends into the middle shell body is elastically provided in the lower shell body, and a first sealing ring is provided on the upper valve core. The lower shell body is provided with a push rod extending into the lower valve core, and a second sealing ring is provided on the push rod; when in use, the upper shell body is inserted into the middle shell body and squeezes the lower valve core so that the push rod emerges from the lower valve core and abuts against the upper valve core, thereby realizing the connection setting between the upper shell body and the lower shell body. At the same time, the deviation of the connection movement is absorbed by the sleeved correction sleeve to realize automatic correction of the external connection; when disassembling, the upper shell body is pulled out, and under the action of elastic force, the lower valve core moves back, and the liquid outlet end of the upper shell body is sealed with the first sealing ring. At the same time, the push rod is separated from the upper valve core, and the second sealing ring is sealed with the liquid outlet end of the lower valve core.

[0005] By adopting the above-mentioned mechanism, the upper shell is used to squeeze the lower valve core, and the push rod is used to push the upper valve core upward, so that the upper shell and the lower shell are connected, and the medium flows in the connected position; when disassembling, the upper shell is directly pulled out, and under the elastic force of the elastic connecting piece, the upper valve core pushes back the push rod. During this process, the upper valve core and the push rod are always kept in abutment state, and there is no gap for residual medium. At the same time, the liquid outlet end of the upper shell is sealed with the first sealing ring, and the second sealing ring is sealed with the liquid outlet end of the lower shell, that is, when the upper shell is pulled away from the lower shell, there will be no leakage of the medium; at the same time, the sleeved correction sleeve absorbs the deviation of the connection movement, realizes automatic correction of the external connection, and can also ensure the continuous connection between the upper shell and the lower shell. The structure is simple and compact, and the operation is convenient.

[0006] In order to simplify the structure and facilitate installation, preferably, two feed pipes are provided on one side of the upper support seat, and guide grooves are provided at positions corresponding to the feed pipes on the other side of the upper support seat, and convex rings are provided at outer positions corresponding to the guide groove notches on the upper support seat, and a limiting sealing ring is provided in the guide groove; a boss is provided on the outer side of the upper shell body, and a limiting groove is provided around the boss in a circumferential direction. During installation, the convex ring extends into the limiting groove, and the outer end face of the boss fits and abuts against the limiting sealing ring.

[0007] To facilitate disassembly and assembly, preferably, a placement hole is provided axially through the upper shell body, and an upper valve core and a first compression spring are provided in the placement hole. During installation, one end of the upper valve core is fitted and abutted against one end of the first compression spring, and the other end of the first compression spring is fitted and abutted against the end face of the corresponding end of the upper support seat.

[0008] In order to simplify the installation structure and facilitate installation, a first sealing ring is embedded on one side of the outer wall of the upper valve core, and the outer wall of the first sealing ring is in contact with the wall of the placement hole; a transition slope is arranged around the other side of the outer wall of the upper valve core, and a limiting slope is arranged at a position corresponding to the transition slope on the wall of the placement hole, the limiting slope is in contact with the transition slope, and the end face of the non-contact end of the upper valve core is made flush with the end face of the hole opening corresponding to the end of the placement hole.

[0009] In order to facilitate installation and ensure installation stability, preferably, a mounting hole is provided on the upper support seat, and an extension section is provided on the hole wall of the mounting hole along the direction of the hole wall, and a first retaining ring is provided on the extension section along the direction of the hole wall, and the hole wall of the mounting hole, the inner side wall of the first retaining ring and the upper and lower end faces of the extension section are respectively formed; a first annular groove is provided on the outer side wall of the correcting sleeve, an upper bending section is provided on one side of the notch of the first annular groove, and a lower bending section is provided on the other side. During installation, the first retaining ring extends into the first annular groove, and the upper bending section extends into the upper clamping groove, and the lower bending section extends into the lower clamping groove, so that the correcting sleeve is clamped on the lower support seat.

[0010] In order to facilitate installation and ensure installation stability, it is preferred that a connecting hole is provided on the correcting sleeve, a second annular groove is provided on the hole wall of the connecting hole, a first bending section is provided on one side of the notch of the second annular groove, and a second bending section is provided on the other side; a support ring is sleeved at a position corresponding to the connecting hole on the outer side of the middle shell, an extension section is provided on the outer side wall of the support ring in a circumferential direction, and a second retaining ring is provided on the extension section in a circumferential direction, the outer side wall of the support ring, the inner side wall of the second retaining ring and the upper and lower end faces of the protruding section are combined to form a first clamping groove and a second clamping groove respectively. During installation, the second retaining ring extends into the second annular groove, the first bending section extends into the first clamping groove, and the second bending section extends into the second clamping groove, so that the support ring is clamped on the correcting sleeve.

[0011] In order to simplify the structure and facilitate installation, preferably, a step hole is provided in the middle shell body, a guide top ring is provided in the large hole end of the step hole, a clearance hole is provided on one side of the guide top ring, and at least two limiting protrusions are arranged around the other side in the circumferential direction, and a clamping block is provided between two adjacent limiting protrusions; orientation grooves are provided at the positions of the limiting protrusions on the hole wall of the large hole end of the step hole, and positioning through holes are provided at the positions of the corresponding clamping blocks, the limiting protrusions at the corresponding positions extend into the orientation grooves, and the clamping blocks at the corresponding positions extend into the positioning through holes for clamping connection, so that the guide top ring is fixed in the step hole.

[0012] In order to ensure the synchronization of unlocking and sealing of the second sealing ring, preferably, one end of the middle shell is connected and sleeved with a lower shell, and a push rod extending into the small hole end of the step hole is fixedly provided in the lower shell, and the extended end of the push rod is sleeved in the directional hole of the lower valve core, and a second compression spring is also sleeved on the outside of the push rod, and a positioning groove is provided along the circumferential direction on one side of the lower valve core, one end of the second compression spring extends into the positioning groove and abuts against the bottom of the groove, and the other end abuts against the inner wall of the lower shell; a second sealing ring is embedded on the outer wall of the push rod, and the outer wall of the second sealing ring fits and abuts against the inner wall of the directional hole.

[0013] In order to facilitate the limiting of the lower valve core and avoid the second sealing ring being exposed and affecting the sealing effect, preferably, a positioning boss extending inward is arranged on the hole wall at the small hole end of the step hole, a first positioning inclined surface is arranged on the outer side of the positioning boss, a second positioning inclined surface is arranged on the inner side of the positioning boss, and a section of a yielding inclined surface which is fitted with the second positioning inclined surface for limiting the position is provided on the outer side of the lower valve core; an upper sealing ring and a lower sealing ring are sleeved on the outer side of the lower valve core, the outer side walls of the upper sealing ring and the lower sealing ring are both in contact with the hole wall at the small hole end of the step hole, and the upper end face of the upper sealing ring is in contact with the lower end face of the guide top ring, and the lower end face of the lower sealing ring is in contact with the first positioning inclined surface; an isolation ring sleeved on the outer side of the lower valve core is also provided between the upper sealing ring and the lower sealing ring.

[0014] Beneficial effects: The utility model arranges an upper shell to squeeze the lower valve core, and uses a push rod to abut the upper valve core, so that the connection is achieved while there is no gap between the push rod and the upper valve core. The error correction sleeve is used to adapt to the deviation of installation movement to ensure the stability of the connection. When disassembling, the elastic force of the elastic connector is used to achieve automatic pop-up, and the sealing ring is used to seal the connecting position at the same time, so as to achieve the purpose of disassembly without leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0016] Figure 1 It is an exploded view of the utility model.

[0017] Figure 2 This is a schematic diagram of the assembly structure of the utility model before connection.

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the convex ring and the upper support seat.

[0019] Figure 4 It is a schematic diagram of the structure of the upper shell.

[0020] Figure 5 It is a schematic diagram of the three-dimensional structure of the upper valve core.

[0021] Figure 6 It is a schematic diagram of the structure of the middle shell.

[0022] Figure 7 Schematic diagram of the three-dimensional structure of the guide top ring.

[0023] Figure 8 It is a schematic diagram of the three-dimensional structure of the lower support seat.

[0024] Fig. 9 for Figure 8 Bottom view of .

[0025] Fig.10 It is a structural cross-sectional view of the correction sleeve.

[0026] Fig.11 It is a structural cross-sectional view of the support ring.

[0027] Fig.12 It is a schematic diagram of the three-dimensional structure of the lower shell and the ejector rod.

[0028] Fig.13 It is a structural cross-sectional view of the lower valve core.

[0029] Fig.14 It is a schematic diagram of the use state of the utility model.

[0030] The meanings of the symbols in the accompanying drawings are:

[0031] Upper support sleeve-1; upper shell-10; placement hole-101; boss-102; limiting groove-103; limiting inclined surface-104; upper valve core-11; first sealing ring-110; transition inclined surface-111; convex ring-12; feed pipe-121; guide groove-13; limiting sealing ring-14; first compression spring-15; mounting hole-16; first retaining ring-161; positioning boss-17; first positioning inclined surface-171; second positioning inclined surface-172;

[0032] Lower support seat-3; middle housing-30; step hole-301; orientation groove-302; positioning through hole-303; lower housing-31; lower valve core-32; orientation hole-321; positioning groove-322; push rod-33; second sealing ring-331; second compression spring-34; yielding inclined surface-35;

[0033] Correction sleeve-4; first annular groove-41; second annular groove-42;

[0034] Guide top ring-5; clearance hole-51; limiting protrusion-52; clamping block-53;

[0035] Support ring-6; second retaining ring-60; upper sealing ring-61; lower sealing ring-62; isolation ring-7. DETAILED DESCRIPTION

[0036] Depend on Figures 1 to 14 As shown, the utility model includes a male plug unit and a female plug unit, the male plug unit includes an upper support seat 1 and an upper shell 10 which are sleeved together, an upper valve core 11 is elastically connected in the upper shell 10, and a first sealing ring 110 is provided on the upper valve core 11; the female plug unit includes a lower support seat 3 provided with a correction sleeve 4, a middle shell 30 sleeved with the correction sleeve 4, and a lower shell 31 connected and sleeved with the middle shell 30, a lower valve core 32 extending into the middle shell 30 is elastically provided in the lower shell 31, a push rod 33 extending into the lower valve core 32 is provided on the lower shell 31, and a second sealing ring 331 is provided on the push rod 33.

[0037] Specifically, two feed pipes 121 are provided on one side of the upper support seat 1, and guide grooves 13 are provided at positions corresponding to the feed pipes 121 on the other side of the upper support seat 1, and convex rings 12 are provided at outer positions corresponding to the notches of the guide grooves 13 on the upper support seat 1, and a limiting sealing ring 14 is provided in the guide groove 13; a boss 102 is provided on the outer side of the upper shell body 10, and a limiting groove 103 is provided around the boss 102 in a circumferential direction. During installation, the convex ring 12 extends into the limiting groove 103, and the outer end face of the boss 102 is in contact with the limiting sealing ring 14.

[0038] A placement hole 101 is axially provided on the upper shell body 10, and an upper valve core 11 and a first compression spring 15 are provided in the placement hole 101. During installation, one end of the upper valve core 11 is fitted and abutted against one end of the first compression spring 15, and the other end of the first compression spring 15 is fitted and abutted against the end face of the corresponding end of the upper support seat 1; a first sealing ring 110 is embedded on one side of the outer wall of the upper valve core 11, and the outer wall of the first sealing ring 110 is fitted and abutted against the hole wall of the placement hole 101; a transition slope 111 is provided around the other side of the outer wall of the upper valve core 11, and a limiting slope 104 is provided at a position corresponding to the transition slope 111 on the hole wall of the placement hole 101, and the limiting slope 104 is fitted with the transition slope 111, and the end face of the non-fitting end of the upper valve core 11 is made flush with the end face of the hole opening corresponding to the placement hole 101.

[0039] A mounting hole 16 is provided on the upper support seat 1, and an extension section is arranged on the hole wall of the mounting hole 16 along the hole wall direction, and a first retaining ring 161 is arranged on the extending section along the hole wall direction, and the hole wall of the mounting hole 16, the inner side wall of the first retaining ring 161 and the upper and lower end surfaces of the extending section are respectively formed by enclosing; a first annular groove 41 is provided on the outer side wall of the correction sleeve 4, an upper bending section is provided on one side of the notch of the first annular groove 41, and a lower bending section is provided on the other side. During installation, the first retaining ring 161 extends into the first annular groove 41, and the upper bending section extends into the upper clamping groove, and the lower bending section extends into the lower clamping groove, so that the correction sleeve 4 is clamped on the lower support seat 3; a connecting hole is provided on the correction sleeve 4, and a connecting hole is provided on the A second annular groove 42 is provided on the hole wall of the connecting hole, a first bending section is provided on one side of the notch of the second annular groove 42, and a second bending section is provided on the other side; a support ring 6 is sleeved at a position corresponding to the connecting hole on the outer side of the middle shell 30, an extension section is provided on the outer side wall of the support ring 6 in a circumferential direction, a second retaining ring 60 is provided on the extension section in a circumferential direction, the outer side wall of the support ring 6, the inner side wall of the second retaining ring 60 and the upper and lower end faces of the protruding section are combined to form a first clamping groove and a second clamping groove respectively. During installation, the second retaining ring 60 extends into the second annular groove 42, and the first bending section extends into the first clamping groove, and the second bending section extends into the second clamping groove, so that the support ring 6 is clamped on the correction sleeve 4.

[0040] A stepped hole 301 is provided in the middle shell body 30, and a guide top ring 5 is provided in the large hole end of the stepped hole 301. A clearance hole 51 is provided on one side of the guide top ring 5, and four limiting protrusions 52 are arranged around the other side in the circumferential direction, and a clamping block 53 is provided between two adjacent limiting protrusions 52; orientation grooves 302 are provided at the positions corresponding to the limiting protrusions 52 on the hole wall of the large hole end of the stepped hole 301, and positioning through holes 303 are provided at the positions corresponding to the clamping blocks 53. The limiting protrusions 52 at the corresponding positions extend into the orientation grooves 302, and the clamping blocks 53 at the corresponding positions extend into the positioning through holes 303 for clamping connection, so that the guide top ring 5 is fixed in the stepped hole 301.

[0041] One end of the middle shell 30 is connected and sleeved with the lower shell 31, and a push rod 33 extending into the small hole end of the step hole 301 is fixed in the lower shell 31, and the extended end of the push rod 33 is sleeved in the directional hole 321 of the lower valve core 32, and a second compression spring 34 is also sleeved on the outside of the push rod 33, and a positioning groove 322 is arranged around one side of the lower valve core 32 in the circumferential direction, one end of the second compression spring 34 extends into the positioning groove 322 and abuts against the bottom of the groove, and the other end abuts against the inner wall of the lower shell 31; a second sealing ring 331 is embedded on the outer wall of the push rod 33, and the outer wall of the second sealing ring 331 fits and abuts against the inner wall of the directional hole 321.

[0042] A positioning boss 17 extending inward is arranged around the hole wall of the small hole end of the step hole 301, a first positioning inclined surface 171 is arranged on the outer side of the positioning boss 17, a second positioning inclined surface 172 is arranged on the inner side of the positioning boss 17, and a yielding inclined surface 35 which is fitted and limited with the second positioning inclined surface 172 is arranged on the outer side of the lower valve core 32; an upper sealing ring 61 and a lower sealing ring 62 are sleeved on the outer side of the lower valve core 32, the outer side walls of the upper sealing ring 61 and the lower sealing ring 62 are both in contact with the hole wall of the small hole end of the step hole 10, and the upper end face of the upper sealing ring 61 is in contact with the lower end face of the guide top ring 5, and the lower end face of the lower sealing ring 62 is in contact with the first positioning inclined surface 171; an isolation ring 7 sleeved on the outer side of the lower valve core 32 is also arranged between the upper sealing ring 61 and the lower sealing ring 62.

[0043] When in use, the upper shell 10 is inserted into the middle shell 30 and squeezes the lower valve core 32 so that the push rod 33 emerges from the lower valve core 32 and abuts against the upper valve core 11, thereby realizing the connection setting between the upper shell 10 and the lower shell 31. At the same time, the sleeved correction sleeve 4 absorbs the deviation of the connection movement to realize automatic correction of the external connection; when disassembling, pull out the upper shell 10, and under the action of elastic force, the lower valve core 32 moves back, and the liquid outlet end of the upper shell 10 is sealed with the first sealing ring 110. At the same time, the push rod 33 is separated from the upper valve core 11, and the second sealing ring 331 is sealed with the liquid outlet end of the lower valve core 32.

[0044] The operating principle of the utility model is as follows:

[0045] like Figure 1 , Figure 2 , Figure 4 , Figure 5 , Fig.12 as well as Fig.13 As shown, before use, the convex ring 12 extends into the limiting groove 103, and the outer end face of the boss 102 fits and abuts against the limiting sealing ring 14. In addition, one end of the upper valve core 11 fits and abuts against one end of the first compression spring 15, and the other end of the first compression spring 15 fits and abuts against the end face of the corresponding end of the upper support seat 1, and a first sealing ring 110 is embedded in the outer wall of the upper valve core 11, and the outer wall of the first sealing ring 110 fits and abuts against the hole wall of the placement hole 101; at the same time, the limiting inclined surface 104 fits with the transition inclined surface 111, and the end face of the non-fitting end of the upper valve core 11 is flush with the hole mouth end face of the corresponding end of the placement hole 101.

[0046] Then, if Figure 2 , Figure 6 as well as Figure 7 As shown, the four limiting protrusions 52 are extended into the directional grooves 302 at the corresponding positions, and at the same time, the four clamping blocks 53 are extended into the positioning through holes 303 at the corresponding positions and are clamped and connected, so that the guide top ring 5 is fixed in the step hole 301; then the lower shell 31 is connected and sleeved on the middle shell 30, one end of the second compression spring 34 is extended into the positioning groove 322 and abuts against the bottom of the groove, and the other end abuts against the inner side wall of the lower shell 31, and the second positioning inclined surface 172 fits the limiting yielding inclined surface 35, the outer side walls of the upper sealing ring 61 and the lower sealing ring 62 are both abutted against the hole wall of the small hole end of the step hole 301, and the upper end face of the upper sealing ring 61 abuts against the lower end face of the guide top ring 5, and the lower end face of the lower sealing ring 62 abuts against the first positioning inclined surface 171, and at the same time, the outer side wall of the second sealing ring 331 fits and abuts against the inner side wall of the directional hole 321.

[0047] When using, Figures 1 to 3 , Figure 6 , Fig.13 as well as Fig.14As shown, the upper shell 10 extends into the guide top ring 5, and the extended end of the upper shell 10 first abuts against the upper end surface of the lower valve core 32. At the same time, the upper end surface of the push rod 33 abuts against the lower end surface of the upper valve core 11; the upper shell 10 continues to extend, driving the lower valve core 32 to squeeze the second compression spring 34. At this time, the push rod 33 fixed in the lower shell 31 forms a relative movement to push the upper valve core 11 upward. As the upper shell 10 is extended, the push rod 33 leaves the directional hole 321 and enters the placement hole 101, and the first compression spring 15 is squeezed. At this time, the placement hole 101 is connected with the directional hole 321, and the medium can flow smoothly. Since the lower end surface of the upper shell 10 is always in abutment with the upper end surface of the lower valve core 32 during the movement, the medium will not leak out at this time.

[0048] like Figure 1 , Figures 8 to 11 As shown, since the first retaining ring 161 extends into the first annular groove 41, and the upper bending section extends into the upper groove, the lower bending section extends into the lower groove, and the correcting sleeve 4 is clamped on the lower support seat 3, at the same time, the second retaining ring 60 extends into the second annular groove 42, and the first bending section extends into the first groove, the second bending section extends into the second groove, and the support ring 6 is clamped on the correcting sleeve 4. Therefore, during use, if a large offset is formed between the center lines of the upper shell 10 and the lower shell 31 due to movement, the correcting sleeve 4 will perform timely deformation and misalignment to ensure that the end faces of the upper valve core 11 and the push rod 33 are abutted, that is, to ensure the through state between the upper shell 10 and the lower shell 31.

[0049] During disassembly, pull the upper support sleeve 1 or the feed pipe 121 to directly pull out the upper shell body 10. During this process, the elastic force of the second compression spring 34 pushes the lower valve core 32 out of the upper shell body 10. At the same time, the first compression spring 15 also drives the upper valve core 11 to abut against the push rod 33. As the lower valve core 32 moves upward, the second sealing ring 331 returns to the directional hole 321, and the outer wall of the second sealing ring 331 abuts against the inner wall of the directional hole 321; at the same time, the outer wall of the first sealing ring 110 abuts against the hole wall of the placement hole 101. During the whole process, the upper valve core 11 and the push rod 33 remain in abutment.

[0050] Due to the fit and limitation of the transition slope 111 and the limiting slope 104, the upper valve core 11 will not pop out of the placement hole 101, that is, the first sealing ring 110 and the second sealing ring 331 are both in a built-in sealing state with good sealing stability. In this way, when the upper valve core 11 is separated from the push rod 33, no medium residue or leakage will occur.

[0051] It should be noted that, in order to better ensure the sealing performance, a limiting sealing ring 14 (such as Figure 1 , Figure 2 and Fig.14As shown), it can not only avoid residual leakage during disassembly, but also form multiple seals without leakage during use.

Claims

1. A bidirectional synchronous interception correction device, characterized in that: The invention comprises a male plug unit and a female plug unit, wherein the male plug unit comprises an upper support seat (1) and an upper shell (10) which are sleeved and connected to each other, an upper valve core (11) is elastically connected and provided in the upper shell (10), and a first sealing ring (110) is provided on the upper valve core (11); the female plug unit comprises a lower support seat (3) provided with a deviation correction sleeve (4), a middle shell (30) sleeved with the deviation correction sleeve (4), and a lower shell (31) sleeved and connected to the middle shell (30), a lower valve core (32) which extends into the middle shell (30) is elastically provided in the lower shell (31), a push rod (33) which extends into the lower valve core (32) is provided on the lower shell (31), and a first sealing ring (110) is provided on the push rod (33). A second sealing ring (331) is provided. When in use, the upper shell (10) is inserted into the middle shell (30) and squeezes the lower valve core (32) so that the push rod (33) emerges from the lower valve core (32) and abuts against the upper valve core (11), thereby realizing the connection setting between the upper shell (10) and the lower shell (31). At the same time, the deviation of the connection movement is absorbed by the sleeved correction sleeve (4), thereby realizing automatic correction of the external connection. When disassembling, the upper shell (10) is pulled out, and under the action of elastic force, the lower valve core (32) moves back, and the liquid outlet end of the upper shell (10) is sealed with the first sealing ring (110). At the same time, the push rod (33) is separated from the upper valve core (11), and the second sealing ring (331) is sealed with the liquid outlet end of the lower valve core (32).

2. A bidirectional synchronous interception correction device as claimed in claim 1, characterized in that: Two feed pipes (121) are provided on one side of the upper support seat (1), and guide grooves (13) are provided at positions corresponding to the feed pipes (121) on the other side of the upper support seat (1), and convex rings (12) are provided at positions on the outer side of the upper support seat (1) corresponding to the notches of the guide grooves (13), and a limiting sealing ring (14) is provided in the guide grooves (13); a boss (102) is provided on the outer side of the upper shell (10), and a limiting groove (103) is provided on the boss (102) along the circumferential direction. When installed, the convex ring (12) extends into the limiting groove (103), and the outer end surface of the boss (102) is in close contact with the limiting sealing ring (14).

3. A bidirectional synchronous interception correction device as claimed in claim 2, characterized in that: A placement hole (101) is axially provided on the upper shell (10), and an upper valve core (11) and a first compression spring (15) are provided in the placement hole (101). During installation, one end of the upper valve core (11) is fitted and abutted against one end of the first compression spring (15), and the other end of the first compression spring (15) is fitted and abutted against the end surface of the corresponding end of the upper support seat (1).

4. A bidirectional synchronous interception correction device as claimed in claim 3, characterized in that: A first sealing ring (110) is embedded on one side of the outer wall of the upper valve core (11), and the outer wall of the first sealing ring (110) is in close contact with the hole wall of the placement hole (101); a transition slope (111) is arranged around the other side of the outer wall of the upper valve core (11), and a limiting slope (104) is provided at a position corresponding to the transition slope (111) on the hole wall of the placement hole (101), and the limiting slope (104) is in close contact with the transition slope (111), so that the end face of the non-contacting end of the upper valve core (11) is flush with the end face of the hole opening corresponding to the end of the placement hole (101).

5. A bidirectional synchronous interception correction device as claimed in claim 1, characterized in that: The lower support seat (3) is provided with a mounting hole (16), a projecting section is arranged on the hole wall of the mounting hole (16) along the hole wall direction, a first retaining ring (161) is arranged on the projecting section along the hole wall direction, and the hole wall of the mounting hole (16), the inner side wall of the first retaining ring (161) and the upper and lower end surfaces of the projecting section are respectively formed by enclosing each other; a first annular groove (41) is arranged on the outer side wall of the deviation correcting sleeve (4), an upper bending section is arranged on one side of the notch of the first annular groove (41), and a lower bending section is arranged on the other side; when installing, the first retaining ring (161) extends into the first annular groove (41), and the upper bending section extends into the upper clamping groove, and the lower bending section extends into the lower clamping groove, so that the deviation correcting sleeve (4) is clamped on the lower support seat (3).

6. A bidirectional synchronous interception correction device as claimed in claim 5, characterized in that: A connecting hole is provided on the correction sleeve (4), a second annular groove (42) is provided on the hole wall of the connecting hole, a first bending section is provided on one side of the notch of the second annular groove (42), and a second bending section is provided on the other side; a support ring (6) is sleeved at a position corresponding to the connecting hole on the outer side of the middle shell (30), an extension section is provided on the outer side wall of the support ring (6) along the circumferential direction, a second retaining ring (60) is provided on the extension section along the circumferential direction, the outer side wall of the support ring (6), the inner side wall of the second retaining ring (60) and the upper and lower end surfaces of the extending section are combined to form a first clamping groove and a second clamping groove respectively; when installed, the second retaining ring (60) extends into the second annular groove (42), the first bending section extends into the first clamping groove, and the second bending section extends into the second clamping groove, so that the support ring (6) is clamped on the correction sleeve (4).

7. A bidirectional synchronous interception correction device as claimed in claim 1, characterized in that: A stepped hole (301) is provided in the middle shell (30), a guide top ring (5) is provided in the large hole end of the stepped hole (301), a clearance hole (51) is provided on one side of the guide top ring (5), and at least two limiting protrusions (52) are arranged around the other side in the circumferential direction, and a clamping block (53) is provided between two adjacent limiting protrusions (52); an orientation groove (302) is provided at a position corresponding to the limiting protrusion (52) on the hole wall of the large hole end of the stepped hole (301), and a positioning through hole (303) is provided at a position corresponding to the clamping block (53); the limiting protrusion (52) at the corresponding position extends into the orientation groove (302), and the clamping block (53) at the corresponding position extends into the positioning through hole (303) for clamping connection, so that the guide top ring (5) is fixed in the stepped hole (301).

8. A bidirectional synchronous interception correction device as claimed in claim 7, characterized in that: A lower shell (31) is connected and sleeved at one end of the middle shell (30), and a push rod (33) is fixedly arranged in the lower shell (31) and extends into the small hole end of the step hole (301). The extending end of the push rod (33) is sleeved in the directional hole (321) of the lower valve core (32). A second compression spring (34) is sleeved on the outer side of the push rod (33). A positioning groove (322) is arranged around one side of the lower valve core (32) along the circumferential direction. One end of the second compression spring (34) extends into the positioning groove (322) and abuts against the bottom of the groove, and the other end abuts against the inner side wall of the lower shell (31); a second sealing ring (331) is embedded on the outer side wall of the push rod (33), and the outer side wall of the second sealing ring (331) abuts against the inner side wall of the directional hole (321).

9. A bidirectional synchronous interception correction device according to claim 8, characterized in that: A positioning boss (17) extending inward is arranged around the hole wall of the small hole end of the step hole (301); a first positioning inclined surface (171) is arranged on the outer side of the positioning boss (17); a second positioning inclined surface (172) is arranged on the inner side of the positioning boss (17); a stop inclined surface (35) which is in contact with the second positioning inclined surface (172) and limits the position is arranged on the outer side of the lower valve core (32); an upper sealing ring (61) is sleeved on the outer side of the lower valve core (32); ) and a lower sealing ring (62), the outer side walls of the upper sealing ring (61) and the lower sealing ring (62) are both in contact with the small hole end wall of the step hole (301), and the upper end face of the upper sealing ring (61) is in contact with the lower end face of the guide top ring (5), and the lower end face of the lower sealing ring (62) is in contact with the first positioning inclined surface (171); an isolation ring (7) is also provided between the upper sealing ring (61) and the lower sealing ring (62) and is sleeved on the outer side of the lower valve core (32).

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