A deviation-correcting connection device capable of bidirectional flow interception

Abstract

The present invention discloses a deviation-correcting connection device capable of bidirectional interception, comprising a bottom plate, a support plate elastically connected to the bottom plate, a lower shell penetrating the bottom plate, an upper shell inserted on the lower shell, an upper interception mechanism arranged inside the upper shell, a lower interception mechanism arranged inside the lower shell, the upper interception mechanism and the lower interception mechanism elastically contact each other and connect the pipeline. The present invention is provided with a lower shell and an upper shell elastically connected to the bottom plate, and an interception mechanism for blocking liquid leakage is arranged in each of the upper and lower shells. When the two interception mechanisms are in contact, the two shells are connected, which is not only convenient for deviation-correcting connection, but also can greatly reduce liquid leakage when disassembling, and is convenient to operate.

Description

Technical Field

[0001] This invention relates to the field of automobile manufacturing, and in particular to a correction connection device capable of bidirectional flow interception. Background Art

[0002] Currently, new energy vehicle battery packs cannot be replaced quickly as a whole, and one of the main reasons is the connection method between the battery pack cooling pipes and the vehicle's piping. Specifically, the connection between the battery pack cooling pipes and the vehicle's piping mainly uses flange joints and is fixed to the vehicle body with bolts. This not only makes the installation and operation cumbersome, but also requires high precision in the positional accuracy of the flange joints and the mounting holes on the vehicle body. In addition, when replacing the battery pack, the coolant must be completely drained to prevent coolant leakage when the pipes are disconnected, which results in significant waste and high replacement costs. Summary of the Invention

[0003] In view of the shortcomings of the prior art, the technical problem to be solved by the present invention is to provide a correction connection device that can both correct and adjust the offset of the connection position and prevent leakage during disassembly and assembly, and can intercept and prevent leakage in both directions.

[0004] The technical solution of the present invention is as follows:

[0005] A bidirectional flow-blocking correction connection device includes a base plate, a support plate elastically connected to the base plate, a lower housing passing through the base plate on the support plate, an upper housing inserted into the lower housing, an upper flow-blocking mechanism inside the upper housing, and a lower flow-blocking mechanism inside the lower housing. The upper flow-blocking mechanism and the lower flow-blocking mechanism are in elastic contact with each other, and the inner cavity of the lower housing and the inner cavity of the upper housing are interconnected.

[0006] With the above structure, the base plate and the support plate are elastically connected, and the support plate is connected to the lower housing, meaning the lower housing and the base plate are also elastically connected. When the upper and lower housings are connected, on the one hand, the upper and lower intercepting mechanisms make elastic contact with each other and connect the pipeline; on the other hand, the lower and upper housings together achieve an elastic connection with the base plate. This elastic connection can adjust the accuracy of the connection position and can achieve bending, tilting, and other connection states within a certain offset range, thus correcting the offset of the connection position. Under the premise of ensuring the stability of the installation position, when the upper and lower housings are disassembled, the upper intercepting mechanism cuts off the liquid leakage inside the upper housing, and similarly, the lower intercepting mechanism cuts off the liquid leakage inside the lower housing. Due to the small space at the connection position, even if there is a little liquid remaining between the upper and lower housings due to interception, it is within a controllable flow range, greatly reducing the cost of battery pack replacement and improving the work efficiency of the replacement process. The structure is simple and compact, and the operation is convenient.

[0007] To simplify the structure and facilitate installation, preferably, the upper flow-blocking mechanism includes an upper piston rod, an upper return spring, an upper sealing ring, an upper guide plate fixed inside one side of the upper housing, and an upper flow-blocking seat provided inside the other side of the upper housing. An upper top plate is provided on one side of the upper piston rod, and an upper sealing seat is provided on the other side. The outer wall of the upper sealing seat is provided with a stepped structure, and an installation groove is provided at the root of the step of the stepped structure. The upper sealing ring is embedded in the installation groove. The upper return spring is sleeved on the outside of the upper piston rod and one end is fixedly connected to the upper sealing seat. The other end of the upper return spring is fixedly connected to the upper guide plate.

[0008] The upper choke seat is provided with an upper choke hole, the upper top plate extends into the upper choke hole, the upper sealing ring abuts against the hole wall of the upper choke hole, and the stepped surface on the outer wall of the upper sealing seat abuts against the upper end face of the upper choke seat.

[0009] To ensure a tight seal during installation, preferably, a first sealing ring is embedded in the outer wall of the upper throttling seat, and the first sealing ring abuts against the inner wall of the upper housing.

[0010] To simplify the structure and facilitate installation, preferably, the lower flow-stopping mechanism includes a lower piston rod, a lower return spring, a lower sealing ring, a lower guide plate fixed to one side of the lower housing, and a lower flow-stopping seat provided on the other side of the lower housing. A lower top plate is provided on one side of the lower piston rod, and a lower sealing seat is provided on the other side. The outer wall of the lower sealing seat is provided with a stepped structure, and a placement groove is provided at the root of the step of the stepped structure. The lower sealing ring is embedded in the placement groove. The lower return spring is sleeved on the outside of the lower piston rod and one end is fixedly connected to the lower sealing seat. The other end of the lower return spring is fixedly connected to the lower guide plate.

[0011] The lower flow-stopping seat is provided with a lower flow-stopping hole, the lower top plate extends into the lower flow-stopping hole, the lower sealing ring abuts against the hole wall of the lower flow-stopping hole, and the stepped surface on the outer wall of the lower sealing seat abuts against the lower end face of the lower flow-stopping seat.

[0012] To ensure a tight seal during installation, a second sealing ring is preferably embedded in the outer wall of the lower choke seat, and the second sealing ring abuts against the inner wall of the lower housing.

[0013] To ensure a tight seal at the connection point, a connecting sleeve is preferably fixedly fitted inside the lower housing, and a second sealing ring is embedded on the inner wall of the connecting sleeve. When the upper housing is inserted into the lower housing, the second sealing ring abuts against the outer wall of the upper housing.

[0014] To facilitate installation and prevent it from falling and affecting the connection, preferably, a pull rod is provided on the base plate. The pull rod includes a straight section, a first bent section extending horizontally on the straight section, a second bent section connected to the first bent section, and a first extension section extending vertically on the second bent section. A lower fixing groove adapted to the shape of the pull rod is provided on the base plate. The straight section, the first bent section, the second bent section, and the first extension section surround and are clamped to the groove wall of the lower fixing groove.

[0015] An upper pull rod is provided on the support plate. The upper pull rod includes a horizontal section, a third bent section extending horizontally on the horizontal section, a fourth bent section connected to the third bent section, and a second extension section extending vertically on the fourth bent section. An upper fixing groove adapted to the shape of the upper pull rod is provided on the support plate. The horizontal section, the third bent section, the fourth bent section, and the second extension section surround and are clamped to the groove wall of the upper fixing groove.

[0016] A first through hole is provided at the position corresponding to the straight section on the lower fixing groove, and a second through hole is provided at the position corresponding to the first through hole on the support plate. The second through hole is connected to the position corresponding to the horizontal section of the upper fixing groove. The straight section is connected to one end of the first tension spring, and the other end of the first tension spring passes through the first through hole and the second through hole in sequence and is connected to the horizontal section.

[0017] To facilitate adjustment of the installation position, preferably, a mounting bolt is provided on the base plate, and a second tension spring is fitted on the mounting bolt. One end of the second tension spring is fixedly connected to an adjusting nut that is screwed to the mounting bolt, and the other end of the second tension spring abuts against the nut of the mounting bolt.

[0018] To prevent interference from foreign objects and maintain the stability of the correction performance, it is preferable to cover the outside of both the first and second tension springs with dust covers.

[0019] To better maintain the stability of installation and use, it is preferable that two lower housings are symmetrically arranged on the support plate, and an upper housing is inserted into each of the lower housings, with a connecting plate between the two upper housings.

[0020] Beneficial effects: The present invention provides a lower shell and an upper shell that are elastically connected to the base plate. Each of the upper and lower shells is provided with a flow-blocking mechanism to prevent liquid leakage. When the two flow-blocking mechanisms are in contact, the two shells are connected, which not only facilitates the correction connection, but also greatly reduces liquid leakage during disassembly, making the operation convenient. Attached Figure Description

[0021] 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:

[0022] Figure 1 It is a structural schematic diagram of the present invention.

[0023] Figure 2 for Figure 1 A in the enlarged view.

[0024] Figure 3 for Figure 1 Enlarged view of point B in the image.

[0025] Figure 4 This is a schematic diagram of the internal structure of the upper and lower shells.

[0026] Figure 5 This is a schematic diagram of the installation structure of the upper and lower shells.

[0027] Figure 6 for Figure 5 A bottom view.

[0028] Figure 7 This is a schematic diagram of the installation structure of the first and second tension springs.

[0029] Figure 8 This is a schematic diagram illustrating the usage state of the present invention.

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

[0031] Base plate-1; Lower fixing groove-11; First through hole-12;

[0032] Support plate-2; Upper fixing groove-21; Second through hole-22;

[0033] Lower housing -3; Lower piston rod -31; Lower top plate -311; Lower sealing seat -312; Lower return spring -32; Lower sealing ring -33; Lower guide plate -35; Lower throttling seat -36; Lower throttling hole -361; Second sealing ring -362; Connecting sleeve -37; Third sealing ring -371;

[0034] Upper housing - 4; Upper top plate - 411; Upper sealing seat - 412; Upper return spring - 42; Upper sealing ring - 43; Upper guide plate - 45; Upper throttling seat - 46; Upper throttling hole - 461; First sealing ring - 462;

[0035] First tension spring - 51; Dust cover - 52

[0036] Straight section - 61; First bend section - 62; Second bend section - 63;

[0037] First extension - 71; Second extension - 72;

[0038] Horizontal section - 81; Third bend section - 82; Fourth bend section - 83;

[0039] Mounting bolt - 9; Adjusting nut - 91; Second tension spring - 92. Detailed Implementation

[0040] The invention will now be further described with reference to the accompanying drawings.

[0041] Depend on Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the present invention includes a base plate 1, a support plate 2 connected to the base plate 1, two lower housings 3 symmetrically arranged on the support plate 2 that pass through the base plate 1, an upper housing 4 inserted into each of the lower housings 3, and a connecting plate 47 between the two upper housings 4.

[0042] An upper flow-blocking mechanism is provided inside the upper housing 4. The upper flow-blocking mechanism includes an upper piston rod 41, an upper return spring 42, an upper sealing ring 43, an upper guide plate 45 fixed to one side of the upper housing 4, and an upper flow-blocking seat 46 provided on the other side of the upper housing 4. An upper top plate 411 is provided on one side of the upper piston rod 41, and an upper sealing seat 412 is provided on the other side. The outer wall of the upper sealing seat 412 has a stepped structure, and a mounting groove is provided at the root of the step. The upper sealing ring 43 is embedded in the mounting groove. The upper return spring 42... The upper return spring 42 is sleeved on the outside of the upper piston rod 41 and fixedly connected at one end to the upper sealing seat 412. The other end of the upper return spring 42 is fixedly connected to the upper guide plate 45. The upper throttling seat 46 is provided with an upper throttling hole 461. The upper top plate 411 extends into the upper throttling hole 461. The upper sealing ring 43 abuts against the hole wall of the upper throttling hole 461. The stepped surface on the outer wall of the upper sealing seat 412 abuts against the upper end face of the upper throttling seat 46. A first sealing ring 462 is embedded in the outer wall of the upper throttling seat 46. The first sealing ring 462 abuts against the inner wall of the upper housing 4.

[0043] A lower flow-stopping mechanism is provided inside the lower housing 3. The lower flow-stopping mechanism includes a lower piston rod 31, a lower return spring 32, a lower sealing ring 33, a lower guide plate 35 fixed on one side inside the lower housing 3, and a lower flow-stopping seat 36 provided on the other side inside the lower housing 3. A lower top plate 311 is provided on one side of the lower piston rod 31, and a lower sealing seat 312 is provided on the other side. The outer wall of the lower sealing seat 312 is provided with a stepped structure. A placement groove is provided at the root of the step of the stepped structure. The lower sealing ring 33 is embedded in the placement groove. The lower return spring 32 is sleeved... The lower return spring 32 is fixedly connected to the lower piston rod 31 on the outside and one end is fixedly connected to the lower sealing seat 312. The other end of the lower return spring 32 is fixedly connected to the lower guide plate 35. The lower throttling seat 36 is provided with a lower throttling hole 361. The lower top plate 311 extends into the lower throttling hole 361. The lower sealing ring 33 abuts against the hole wall of the lower throttling hole 361. The stepped surface on the outer wall of the lower sealing seat 312 abuts against the lower end face of the lower throttling seat 36. A second sealing ring 362 is embedded in the outer wall of the lower throttling seat 36. The second sealing ring 362 abuts against the inner wall of the lower housing 3.

[0044] The upper top plate 411 and the lower top plate 311 abut against each other, causing the upper piston rod 41 to drive the upper sealing seat 412 to compress the upper return spring 42, and the upper throttling seat 46 to move out of the upper throttling hole 461. At the same time, the lower piston rod 31 drives the lower sealing seat 312 to compress the lower return spring 32, and the lower throttling seat 36 to move out of the lower throttling hole 361, so that the inner cavities of the upper housing 4 and the lower housing 3 are in a connected state.

[0045] A connecting sleeve 37 is fixedly sleeved inside the lower housing 3, and a third sealing ring 371 is embedded on the inner wall of the connecting sleeve 37. When the upper housing 4 is inserted into the lower housing 3, the third sealing ring 371 abuts against the outer wall of the upper housing 4.

[0046] A pull rod is provided on the base plate 1. The pull rod includes a straight section 61, a horizontally extending first bent section 62 on the straight section 61, a second bent section 63 connected to the first bent section 62, and a vertically extending first extension section 71 on the second bent section 63. A lower fixing groove 11 adapted to the shape of the pull rod is provided on the base plate 1. The straight section 61, the first bent section 62, the second bent section 63, and the first extension section 71 surround and are clamped to the groove wall of the lower fixing groove 11. An upper pull rod is provided on the support plate 2. The upper pull rod includes a horizontal section 81, a horizontally extending third bent section 82 on the horizontal section 81, and a fourth bent section 83 connected to the third bent section 82. The fourth bending section 83 is provided with a vertically extending second extension section 72. The support plate 2 is provided with an upper fixing groove 21 adapted to the shape of the upper pull rod. The horizontal section 81, the third bending section 82, the fourth bending section 83 and the second extension section 72 surround and are clamped to the groove wall of the upper fixing groove 21. The lower fixing groove 11 is provided with a first through hole 12 corresponding to the position of the straight section 61. The support plate 2 is provided with a second through hole 22 corresponding to the position of the first through hole 12, and the second through hole 22 is connected to the position of the upper fixing groove 21 corresponding to the horizontal section 81. The straight section 61 is connected to one end of the first tension spring 51. The other end of the first tension spring 51 passes through the first through hole 12 and the second through hole 22 in sequence and is connected to the horizontal section 81.

[0047] A mounting bolt 9 is provided on the base plate 1, and a second tension spring 92 is sleeved on the mounting bolt 9. One end of the second tension spring 92 is fixedly connected to an adjusting nut 91 that is screwed to the mounting bolt 9, and the other end of the second tension spring 92 abuts against the nut of the mounting bolt 9.

[0048] Dust covers 52 are fitted on the outside of both the first tension spring 51 and the second tension spring 92.

[0049] The method of using this invention is as follows:

[0050] like Figures 1 to 5 As shown, before use, the pull rod is placed into the lower fixing groove 11, and the straight section 61, the first bent section 62, the second bent section 63, and the first extension section 71 surround and are connected to the groove wall clamp of the lower fixing groove 11; similarly, the upper pull rod is placed into the upper fixing groove 21, and the horizontal section 81, the third bent section 82, the fourth bent section 83, and the second extension section 72 surround and are connected to the groove wall clamp of the upper fixing groove 21; the straight section 61 is connected to one end of the first tension spring 51, and the other end of the first tension spring 51 passes through the first through hole 12 and the second through hole 22 in sequence, and is connected to the horizontal section 81, thus completing the connection and installation of the support plate 2 and the base plate 1.

[0051] Meanwhile, a clearance hole (not marked) is provided on the base plate 1 at the corresponding insertion position of the lower housing 3. The diameter of the clearance hole is larger than the outer diameter of the lower housing 3, providing a larger offset correction gap for the lower housing 3 (e.g., Figure 1 (As shown).

[0052] At this time, inside the lower housing 3, the lower top plate 311 extends into the lower throttling hole 361, the lower sealing ring 33 abuts against the hole wall of the lower throttling hole 361, and the stepped surface on the outer wall of the lower sealing seat 312 abuts against the lower end face of the lower throttling seat 36; inside the upper housing 4, the upper top plate 411 extends into the upper throttling hole 461, the upper sealing ring 43 abuts against the hole wall of the upper throttling hole 461, and the stepped surface on the outer wall of the upper sealing seat 412 abuts against the upper end face of the upper throttling seat 46. Both housings are in a state of flow interception and isolation.

[0053] In use, the upper housing 4 is inserted into the lower housing 3, and the third sealing ring 371 abuts against the outer wall of the upper housing 4. At the same time, the upper top plate 411 and the lower top plate 311 abut against each other, so that the upper piston rod 41 drives the upper sealing seat 412 to compress the upper return spring 42, and the upper throttling seat 46 moves out of the upper throttling hole 461. At the same time, the lower piston rod 31 drives the lower sealing seat 312 to compress the lower return spring 32, and the lower throttling seat 36 moves out of the lower throttling hole 361, so that the inner cavities of the upper housing 4 and the lower housing 3 are in a connected state, and the liquid flows from the position of the upper guide plate 45 or the lower guide plate 35 into the inner cavity formed by the two housings.

[0054] Because of the bumps that occur during vehicle operation, the gap between the clearance hole and the outer wall of the lower housing 3 is relatively large when the connection is made, which may result in the two housings being misaligned (e.g.) Figure 8 As shown in Figures a and b), due to the elastic yielding effect of the first tension spring 51, the housing in the connected state swings adaptively, and the upper top plate 411 and the lower top plate 311 are in rigid contact. The contact position will not deform or shift with the tilting swing. Therefore, it will not generate torque on the assembly of internal parts, that is, it will not generate damaging external force, which facilitates the installation of the connection position to achieve the correction function.

[0055] In addition, a second tension spring 92 is fitted onto the mounting bolt 9. The connection length of the mounting bolt 9 is adjusted by rotating the adjusting nut 91 and combining it with the extension and retraction of the second tension spring 92. This is to facilitate the adjustment of the installation position of the base plate 1, especially under uneven installation conditions. The connection length is adaptively adjusted at each position to achieve the best connection state. Combined with the elastic clearance effect of the second tension spring 92, it is convenient to achieve the function of correcting the installation of the base plate 1. In the above operation, it is only necessary to lift the dust cover 52, adjust it, and then put the dust cover 52 back on. Similarly, the same principle applies when replacing the first tension spring 51. That is, lift the dust cover 52 to remove it, and at the same time remove the dust cover 52 at that position. Then put it on the new first tension spring 51. After the new first tension spring 51 is installed in place, put the dust cover 52 back on.

[0056] During disassembly, the upper top plate 411 and the lower top plate 311 move away from each other. Under the elastic force of the return spring, the upper throttling seat 46 moves back into the upper throttling hole 461, and the upper sealing ring 43 abuts against the hole wall of the upper throttling hole 461. At the same time, the lower throttling seat 36 moves back into the lower throttling hole 361, and the lower sealing ring 33 abuts against the hole wall of the lower throttling hole 361. The flow in the upper housing 4 and the lower housing 3 is blocked at the same time. Except for the liquid remaining in the connected state, the rest of the liquid will not leak out at the positions of the upper housing 4 and the lower housing 3, thus achieving the purpose of bidirectional flow blocking during disassembly.

[0057] It should be noted that the number of lower housings 3 and the style of connecting plates 47 are not unique in this embodiment. They should be set reasonably according to design requirements, while also ensuring the stability of installation.

Claims

1. A deviation-correcting connection device capable of bidirectional flow interception, characterized in that: The invention comprises a bottom plate (1), a support plate (2) being elastically connected to the bottom plate (1), a lower shell (3) passing through the bottom plate (1) being arranged on the support plate (2), an upper shell (4) being inserted on the lower shell (3), an upper intercepting mechanism being arranged inside the upper shell (4), and a lower intercepting mechanism being arranged inside the lower shell (3), the upper intercepting mechanism and the lower intercepting mechanism being in elastic contact with each other and making the inner cavity of the lower shell (3) and the inner cavity of the upper shell (4) communicate with each other.

2. The deviation-correcting connection device capable of bidirectional flow interception according to claim 1 is characterized in that: The upper intercepting mechanism comprises an upper piston rod (41), an upper return spring (42), an upper sealing ring (43), an upper guide plate (45) fixedly arranged on one side of the upper shell (4), and an upper intercepting seat (46) arranged on the other side of the upper shell (4); an upper top plate (411) is arranged on one side of the upper piston rod (41), and an upper sealing seat (412) is arranged on the other side; a step structure is arranged on the outer wall of the upper sealing seat (412); a mounting groove is arranged at the root of the step of the step structure, and the upper sealing ring (43) is embedded in the mounting groove; the upper return spring (42) is sleeved on the outer side of the upper piston rod (41) and one end is fixedly connected to the upper sealing seat (412); the other end of the upper return spring (42) is fixedly connected to the upper guide plate (45); An upper intercepting hole (461) is provided on the upper intercepting seat (46), the upper top plate (411) extends into the upper intercepting hole (461), the upper sealing ring (43) abuts against the hole wall of the upper intercepting hole (461), and the step surface on the outer wall of the upper sealing seat (412) abuts against the upper end surface of the upper intercepting seat (46).

3. The deviation-correcting connection device capable of bidirectional flow interception according to claim 2 is characterized in that: A first sealing ring (462) is embedded in the outer wall of the upper intercepting seat (46), and the first sealing ring (462) abuts against the inner wall of the upper shell (4).

4. The deviation-correcting connection device capable of bidirectional flow interception according to claim 1, characterized in that: The lower intercepting mechanism comprises a lower piston rod (31), a lower return spring (32), a lower sealing ring (33), a lower guide plate (35) fixedly arranged on one side of the lower shell (3), and a lower intercepting seat (36) arranged on the other side of the lower shell (3); a lower top plate (311) is arranged on one side of the lower piston rod (31), and a lower sealing seat (312) is arranged on the other side; a step structure is arranged on the outer wall of the lower sealing seat (312); a placement groove is arranged at the step root position of the step structure, and a lower sealing ring (33) is embedded in the placement groove; the lower return spring (32) is sleeved on the outer side of the lower piston rod (31) and one end is fixedly connected to the lower sealing seat (312); the other end of the lower return spring (32) is fixedly connected to the lower guide plate (35); A lower intercepting hole (361) is provided on the lower intercepting seat (36), the lower top plate (311) extends into the lower intercepting hole (361), the lower sealing ring (33) abuts against the hole wall of the lower intercepting hole (361), and the step surface on the outer wall of the lower sealing seat (312) abuts against the lower end surface of the lower intercepting seat (36).

5. The deviation-correcting connection device capable of bidirectional flow interception according to claim 4 is characterized in that: A second sealing ring (362) is embedded in the outer wall of the lower shut-off seat (36), and the second sealing ring (362) abuts against the inner wall of the lower shell (3).

6. The deviation-correcting connection device capable of bidirectional flow interception according to claim 4 is characterized in that: A connecting sleeve (37) is fixedly sleeved inside the lower shell (3), a third sealing ring (371) is embedded on the inner wall of the connecting sleeve (37), and when the upper shell (4) is inserted into the lower shell (3), the third sealing ring (371) abuts against the outer wall of the upper shell (4).

7. The deviation-correcting connection device capable of bidirectional flow interception according to claim 1 is characterized in that: A lower pull rod is provided on the bottom plate (1), the lower pull rod comprises a straight section (61), a first bent section (62) extending horizontally is provided on the straight section (61), a second bent section (63) is connected to the first bent section (62), a first extended section (71) extending vertically is provided on the second bent section (63), a lower fixed groove (11) matching the shape of the lower pull rod is provided on the bottom plate (1), the straight section (61), the first bent section (62), the second bent section (63) and the first extended section (71) are surrounded and connected to the groove wall clamp of the lower fixed groove (11); An upper pull rod is provided on the support plate (2), and the upper pull rod comprises a horizontal section (81), a third bending section (82) extending horizontally is provided on the horizontal section (81), a fourth bending section (83) is connected to the third bending section (82), a second extension section (72) extending vertically is provided on the fourth bending section (83), an upper fixing groove (21) matching the shape of the upper pull rod is provided on the support plate (2), and the horizontal section (81), the third bending section (82), the fourth bending section (83) and the second extension section (72) are surrounded and connected to the groove wall clamp of the upper fixing groove (21); A first through hole (12) is provided at a position corresponding to the straight section (61) on the lower fixed groove (11), and a second through hole (22) is provided at a position corresponding to the first through hole (12) on the support plate (2), and the second through hole (22) is connected to a position corresponding to the horizontal section (81) of the upper fixed groove (21), the straight section (61) is connected to one end of a first tension spring (51), and the other end of the first tension spring (51) passes through the first through hole (12) and the second through hole (22) in sequence, and is connected to the horizontal section (81).

8. The deviation-correcting connection device capable of bidirectional flow interception according to claim 7, characterized in that: A mounting bolt (9) is provided on the base plate (1), and a second tension spring (92) is sleeved on the mounting bolt (9); one end of the second tension spring (92) is fixedly connected to an adjusting nut (91) threadedly connected to the mounting bolt (9), and the other end of the second tension spring (92) abuts against the nut of the mounting bolt (9).

9. The deviation-correcting connection device capable of bidirectional flow interception according to claim 8, characterized in that: A dust cover (52) is sleeved on the outer sides of the first tension spring (51) and the second tension spring (92).

10. The deviation-correcting connection device capable of bidirectional flow interception according to any one of claims 1 to 9, characterized in that: Two lower shells (3) are symmetrically arranged on the support plate (2), an upper shell (4) is inserted into each of the lower shells (3), and a connecting plate (47) is arranged between the two upper shells (4).

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