Quick assembling and disassembling clamp for pressure gauge connector

Abstract

The invention relates to the field of pressure gauge connector assembling and disassembling clamps, and particularly discloses a pressure gauge connector quick assembling and disassembling clamp which comprises an air pushing quick connecting assembly and a quick connecting outer sleeve assembly, and the air pushing quick connecting assembly comprises a quick connecting core used for being connected with an air source and a plurality of quick connecting petals arranged on the quick connecting core in a sliding mode; the quick-connection outer sleeve assembly comprises a bottom sleeve and a taper sleeve connected to the bottom sleeve, a sliding space is defined by the bottom sleeve and the taper sleeve, the taper sleeve is provided with an opening, the end of the quick-connection core and the quick-connection valve are arranged in the sliding space in a sliding mode, and the sliding direction of the quick-connection valve is staggered from the insertion direction of the pressure gauge. An air pipe is connected to the bottom sleeve, an inflation space is defined between the quick connection core and the bottom sleeve, the inflation space is communicated with the air pipe and located on the side, away from the opening of the taper sleeve, of the end of the quick connection core, and the size of the opening of the taper sleeve is gradually increased in the arrangement direction from the opening of the taper sleeve to the inflation space. The method has the effect of improving the detection efficiency of workers.

Description

Technical Field

[0001] The present application relates to the field of pressure gauge connector assembly and disassembly fixtures, and in particular to a pressure gauge connector quick assembly and disassembly fixture. Background Art

[0002] The pressure gauge is a measuring instrument widely used in industry, scientific research and other fields. It is an important tool to ensure the normal operation of the process, the safety and stability of the equipment, the timely fault diagnosis and the accurate performance evaluation.

[0003] Before leaving the factory, the pressure gauge needs to go through the validation and overpressure processes. In some processes, the pressure gauge needs to be connected to the gas source through a loading and unloading fixture. In the related technology, the pressure gauge is often connected to the loading and unloading fixture by threaded connection. However, the threaded connection method is relatively cumbersome, whether it is installing the pressure gauge on the loading and unloading fixture or removing the pressure gauge from the loading and unloading fixture, which affects the inspection efficiency of the inspection personnel and needs to be improved. Summary of the invention

[0004] In order to improve the detection efficiency of the staff, the present application provides a pressure gauge connector quick assembly and disassembly fixture.

[0005] The present application provides a pressure gauge connector quick assembly and disassembly fixture that adopts the following technical solution: A pressure gauge connector quick assembly and disassembly fixture, comprising a pneumatic quick-connect assembly and a quick-connect sleeve assembly, wherein the pneumatic quick-connect assembly comprises a quick-connect core for connecting to a gas source and a plurality of quick-connect petals slidably arranged on the quick-connect core; The quick-connect sleeve assembly includes a bottom sleeve and a cone sleeve connected to the bottom sleeve, the bottom sleeve and the cone sleeve enclose a sliding space, the cone sleeve has an opening for inserting a pressure gauge, the end of the quick-connect core and the quick-connect flap are both slidably arranged in the sliding space, and the sliding direction of the quick-connect flap is staggered with the insertion direction of the pressure gauge; An air pipe is connected to the bottom sleeve, and an inflation space is enclosed between the quick-connect core and the bottom sleeve. The inflation space is connected to the air pipe and is located on the end of the quick-connect core away from the opening of the cone sleeve. The inner wall of the cone sleeve is used to contact the quick-connect valve, and the opening size of the cone sleeve increases along the arrangement direction from its own opening to the inflation space.

[0006] By adopting the above technical solution, when testing the pressure gauge, the pressure gauge is inserted into the sliding space through the opening of the cone sleeve until the pressure gauge contacts the quick-connect core. Then, gas is input into the inflation space through the air pipe. As the gas is output, the quick-connect core and the bottom sleeve move relative to each other, and the inflation space gradually expands. The bottom sleeve drives the cone sleeve to move relative to the quick-connect core, and the cone sleeve presses against the quick-connect flap. Since the opening size of the cone sleeve increases along the arrangement direction from its own opening to the inflation space, the cone sleeve contacts the quick-connect flap and pushes each quick-connect flap to move toward the center position of the cone sleeve opening, that is, each quick-connect flap is in a contracted state, thereby clamping the pressure gauge.

[0007] After the test is completed, stop supplying air through the air pipe, slide the quick-connect sleeve assembly to compress the inflation space, and discharge the gas in the inflation space. The cone sleeve moves relative to the quick-connect flap, and the quick-connect flap no longer presses against the pressure gauge, so the pressure gauge can be pulled out of the sliding space.

[0008] Compared with connecting the pressure gauge and the loading and unloading fixture by threaded connection, the present application can achieve quick connection and separation between the pressure gauge and the loading and unloading fixture by inflation, which effectively improves the detection efficiency of the staff.

[0009] Optionally, the quick-connect core is provided with an air filling groove on a surface facing away from the opening of the cone sleeve in the sliding space, and the air filling groove is connected to the air pipe.

[0010] By adopting the above technical solution and setting the inflation groove, even if the surface of the quick-connect core facing away from the opening of the cone sleeve in the sliding space fits against the inner wall of the bottom sleeve, there is still space for gas to enter, so as to ensure that the gas can smoothly fill the inflation space, which helps the gas drive the bottom sleeve and the quick-connect core to move relative to each other.

[0011] Optionally, the air-pushed quick-connect assembly includes a quick-connect elastic member disposed between adjacent quick-connect petals, and the quick-connect elastic member is used to apply a force to the two adjacent quick-connect petals to drive the two adjacent quick-connect petals to move away from each other.

[0012] By adopting the above technical solution, the quick-connect elastic member continuously applies force to the quick-connect flaps, so that the adjacent quick-connect flaps maintain the maximum spacing in the sliding space, so as to facilitate the insertion of the pressure gauge into the sliding space. When gas is input into the inflation space, the bottom sleeve and the cone sleeve move, and the cone sleeve presses against the quick-connect flaps and causes each quick-connect flap to contract, thereby pressing against the pressure gauge. After the detection is completed and the gas supply is stopped, the sliding bottom sleeve and the cone sleeve are reset, and the quick-connect flaps are reset under the action of the quick-connect elastic member.

[0013] With such arrangement, when not inflated, the position of the quick-connect flap in the sliding space can be relatively stable and the maximum spacing between adjacent quick-connect flaps can be maintained, thereby minimizing interference with the pressure gauge insertion activity space.

[0014] Optionally, a jacket elastic member is connected to the quick-connect jacket assembly, and the jacket elastic member is used to drive the quick-connect jacket assembly to move and reset along the direction from the inflation space to the opening of the cone sleeve.

[0015] By adopting the above technical solution, after the detection is completed and the air supply is stopped, under the action of the quick-connect elastic member, the bottom sleeve moves relative to the quick-connect core and resets, the gas in the inflation space is discharged, the cone sleeve moves relative to the quick-connect flap, and the quick-connect flap resets. Compared with manual sliding reset, this arrangement improves the simplicity of connecting and separating the loading and unloading fixture of the present application and the pressure gauge, and further improves the detection efficiency of the staff.

[0016] Optionally, a rebound seat is provided on the quick-connect core, and two force-bearing ends of the outer sleeve elastic member respectively contact the rebound seat and the quick-connect outer sleeve assembly.

[0017] By adopting the above technical solution, compared with directly connecting the outer jacket elastic part to the quick-connect core, by arranging a rebound seat on the quick-connect core, it is helpful to install the outer jacket elastic part stably, expand and contract under force, and apply force to the quick-connect outer jacket assembly.

[0018] Optionally, the quick-connect core includes a quick-connect base for connecting to an air source and a quick-connect piston for connecting to a pressure gauge, the quick-connect piston includes a connecting portion and a limiting portion connected to the connecting portion, the connecting portion is connected to the quick-connect base, the quick-connect petal includes a petal body and a petal seat connected to the petal body, and the petal seat is located between the limiting portion and the quick-connect base.

[0019] By adopting the above technical solution, when installing the quick-connect flap, first place the quick-connect flap on the quick-connect base, and then connect the connecting part to the quick-connect base. At this time, the flap seat is located between the limiting part and the quick-connect base. The sliding range of the quick-connect flap is limited by the bottom sleeve and the cone sleeve, so that the flap seat is maintained between the limiting part and the quick-connect base, and then the quick-connect flap can be connected to the quick-connect core by relative sliding. In this way, when the cone sleeve moves relative to the quick-connect core, the cone sleeve can stably move relative to the quick-connect flap to drive the quick-connect flap to move.

[0020] Optionally, a ball is rotatably provided on the quick-connect base, and the petal seat contacts the ball.

[0021] By adopting the above technical solution, when the quick-connect flap slides relative to the quick-connect base, compared with the quick-connect flap directly contacting the quick-connect base, the ball disposed on the quick-connect base is rotated to contact the flap seat, which can effectively reduce the friction encountered by the quick-connect flap when sliding, and help the quick-connect flap move to clamp the pressure gauge and reset the quick-connect flap.

[0022] Optionally, it further comprises a locking mechanism, a locking member of the locking mechanism and a locking assembly, a sliding hole is provided on the bottom sleeve, the locking member is slidably arranged in the sliding hole, a locking groove is provided on the quick-connect core for inserting the end of the locking member, the locking assembly is used to drive the end of the locking member to insert into the locking groove, the bottom sleeve can slide relative to the quick-connect core until the sliding hole is aligned with the locking groove, and the bottom sleeve can also slide relative to the quick-connect core until the sliding hole and the locking groove are staggered; When the trachea is ventilated and the quick-connect flap is pressed against the pressure gauge, the sliding hole is aligned with the locking groove, and the locking assembly drives the end of the locking piece to insert into the locking groove.

[0023] By adopting the above technical solution, when the trachea is ventilated and the bottom sleeve slides relative to the quick-connect core, the bottom sleeve drives the locking piece to move, and the cone sleeve drives the quick-connect flap to move until the quick-connect flap is pressed against the pressure gauge. At this time, the sliding hole is aligned with the locking groove, that is, there is space for the end of the locking piece to move toward the locking groove. Under the action of the locking assembly, the end of the locking piece is inserted into the locking groove, thereby limiting the movement of the bottom sleeve relative to the quick-connect core, thereby limiting the movement of the cone sleeve relative to the quick-connect core. Under the action of the cone sleeve, the quick-connect flap remains pressed against the pressure gauge. Compared with locking the pressure gauge only by ventilation, double locking of the pressure gauge is achieved in this way, which not only improves safety, but also enables the loading and unloading fixture of the present application to be used to detect pressure instruments with a larger pressure range.

[0024] Optionally, the locking assembly includes a locking sleeve and a locking elastic member, the locking sleeve is sleeved on the bottom sleeve, the inner wall of the locking sleeve includes a yield wall, a push wall and a locking wall, there is a gap between the yield wall and the bottom sleeve for the end of the locking member to extend into, the locking wall is fitted with the bottom sleeve, the push wall is inclined, and the push wall is located between the yield wall and the locking wall and connects the yield wall and the locking wall, and the locking elastic member is used to apply a force to the locking sleeve along the arrangement direction from the yield wall to the locking wall.

[0025] By adopting the above technical solution, when the bottom sleeve moves relative to the quick-connect core until the sliding hole is aligned with the locking groove, under the action of the locking elastic member, the locking sleeve slides relative to the bottom sleeve, and the locking member changes from being in contact with the yield wall to being in contact with the push wall. As the locking sleeve moves, due to the inclined setting of the push wall, the end of the locking member is inserted into the locking groove under the action of the push wall. Finally, under the action of the locking elastic member, the locking sleeve moves until the locking wall is in contact with the locking member, and the locking wall fits with the bottom sleeve, thereby limiting the end of the locking member from moving out of the locking groove. When the sliding hole is not aligned with the locking groove, due to the gap between the yield wall and the bottom sleeve, the end of the locking member can be inserted.

[0026] The locking member is limited by the locking assembly arranged in this way, and the structure is simple and reliable.

[0027] Optionally, an unlocking assembly is further included, which includes a locking sleeve connecting rod and an unlocking connecting rod, the unlocking connecting rod is rotatably set on the quick-connect core, the locking sleeve connecting rod is rotatably set on the locking sleeve, and the unlocking connecting rod is hinged to the locking sleeve connecting rod.

[0028] By adopting the above technical solution, after the detection is completed, the air supply through the air pipe is stopped first, and then the unlocking link is pressed to rotate the unlocking link, and the hinge of the unlocking link and the locking sleeve link swings, thereby driving the connection between the locking sleeve link and the locking sleeve to move, so that the locking sleeve moves to align the clearance wall with the sliding hole. Under the action of the outer sleeve elastic member, the bottom sleeve moves relative to the quick-connect core, so that the sliding hole and the locking groove are offset, and the locking member moves until its end extends into the gap between the clearance wall and the bottom sleeve.

[0029] Compared with resetting by pulling out the locking sleeve, resetting by pressing is easier to operate and it is not easy to disconnect the connection between the quick-connect core and the detection gas source.

[0030] In summary, the present application includes at least one of the following beneficial technical effects: 1. When testing the pressure gauge, first insert the pressure gauge into the sliding space through the opening of the cone sleeve, and then inflate the quick-connect jacket assembly to move relative to the quick-connect core, and the quick-connect flap presses against the pressure gauge; after the test is completed, stop supplying air and slide the quick-connect jacket assembly, so that the pressure gauge can be pulled out of the sliding space; compared with connecting the pressure gauge and the loading and unloading fixture by threaded connection, the inflatable method of this application greatly improves the simplicity of operation; 2. Add a locking mechanism, so that when the pressure gauge is tested, not only the quick-connect flap is pressed against the pressure gauge by inflation, but also the relative position of the bottom sleeve and the quick-connect core can be locked by the locking mechanism, thereby locking the quick-connect flap, which not only improves safety, but also enables the present application's loading and unloading fixture to be used for pressure instruments with a larger pressure range; 3. The setting of the unlocking component enables the staff to only press the unlocking link after the inspection is completed, which improves the convenience of unlocking between the bottom sleeve and the quick-connect core after the inspection is completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the structure of the embodiment of the present application when it is not inflated.

[0032] Figure 2 It is an exploded schematic diagram of an embodiment of the present application.

[0033] Figure 3 It is a cross-sectional view of the embodiment of the present application when it is not inflated.

[0034] Figure 4 It is a cross-sectional view of the embodiment of the present application when inflated.

[0035] Description of reference numerals: 1. Pneumatic quick-connect assembly; 11. Quick-connect core; 111. Quick-connect base; 1111. Inflating groove; 1112. Locking groove; 112. Quick-connect piston; 1121. Connecting part; 1122. Limiting part; 113. Ventilation hole; 114. Piston sealing ring; 115. Filter screen; 116. Ball; 117. Base sealing ring; 118. Resisting sealing ring; 12. Quick-connect flap; 121. Flap body; 122. Flap seat; 13. Quick-connect elastic member; 14. Rebound seat; 15, outer sleeve elastic part; 2, quick-connect outer sleeve assembly; 21, bottom sleeve; 211, sliding hole; 22, cone sleeve; 23, sliding space; 3, locking mechanism; 31, locking part; 32, locking assembly; 321, locking sleeve; 322, locking elastic part; 323, yielding wall; 324, pushing wall; 325, locking wall; 4, unlocking assembly; 41, locking sleeve connecting rod; 42, unlocking connecting rod; 43, pressure plate; 5, inflation space; 6, air pipe. DETAILED DESCRIPTION

[0036] The following is combined with Figure 1-4 This application is described in further detail.

[0037] The present application embodiment discloses a pressure gauge connector quick assembly and disassembly fixture. Figure 1 The pressure gauge connector quick assembly and disassembly fixture includes an air-push quick-connect assembly 1 for connecting to an air source, a quick-connect sleeve assembly for connecting the air-push quick-connect assembly 1 and a pressure gauge, a locking mechanism 3 for locking the quick-connect sleeve assembly 2, and an unlocking assembly 4 for unlocking the quick-connect sleeve assembly 2.

[0038] Reference Figure 2 , Figure 3 The gas push quick-connect assembly 1 includes a quick-connect core 11, which includes a quick-connect base 111 for connecting to an air source and a quick-connect piston 112 for connecting to a pressure gauge. The quick-connect base 111 and the quick-connect piston 112 are both rotating bodies, and the quick-connect base 111 and the quick-connect piston 112 are both provided with a vent hole 113 that penetrates the quick-connect base 111 and the quick-connect piston 112 along the axial direction of their own rotating axis.

[0039] Reference Figure 2 , Figure 3The cross-sections of the quick-connect base 111 and the quick-connect piston 112 along their own rotational axes are both in a "T" shape. It is defined that the part with a larger cross-sectional width of the rotating body with a "T"-shaped cross-sectional width along its own rotational axis is the head, and the part with a smaller cross-sectional width of the rotating body with a "T"-shaped cross-sectional width along its own rotational axis is the rod. The quick-connect piston 112 includes a connecting portion 1121 and a limiting portion 1122 integrally formed with the connecting portion 1121. The connecting portion 1121 is the rod of the quick-connect piston 112, and the limiting portion 1122 is the head of the quick-connect piston 112. The connecting portion 1121 is inserted and fixed in the vent hole 113 of the quick-connect base 111. Two piston sealing rings 114 are fixedly mounted on the connecting portion 1121. The piston sealing rings 114 are pressed against the outer wall of the quick-connect piston 112 and the hole wall of the vent hole 113 of the quick-connect base 111.

[0040] Reference Figure 3 A filter 115 is fixed in the vent hole 113 of the quick-connect base 111 . The filter 115 is inserted into the vent hole 113 of the quick-connect piston 112 at one end of the connecting portion 1121 , and the gas can be filtered through the filter 115 .

[0041] Reference Figure 2 , Figure 3 The pneumatic quick-connect assembly 1 also includes two quick-connect petals 12 and quick-connect elastic members 13 corresponding to the number of quick-connect petals 12. The two quick-connect petals 12 are centrally symmetrical around the rotation axis of the quick-connect piston 112. The quick-connect petal 12 includes an integrally formed petal body 121 and a petal seat 122. The limiting portion 1122 is located between the two petal bodies 121. There is a space between the two petal bodies 121 for inserting a pressure gauge. The inner wall of the petal body 121 is used to press against the pressure gauge. The outer wall of the petal seat 122 is inclined, and the distance between the outer wall of the petal seat 122 and the rotation axis of the quick-connect piston 112 decreases along the arrangement direction from the quick-connect piston 112 to the quick-connect base 111. The petal seat 122 is slidably arranged between the limit portion 1122 and the head of the quick-connect base 111 in a direction perpendicular to the rotation axis of the quick-connect piston 112. A plurality of balls 116 are rollingly arranged on the end surface of the quick-connect base 111 facing the quick-connect petal 12. The balls 116 contact the petal seat 122 to reduce the friction force on the petal seat 122 when sliding.

[0042] Reference Figure 2 , Figure 3 The quick-connect elastic member 13 is disposed between the two petals 121. In the embodiment of the present application, the quick-connect elastic member 13 is a spring, and the two ends of the quick-connect elastic member 13 respectively press against different petals 121. In other embodiments, the quick-connect elastic member 13 is also a spring, etc., and any method that can apply a force to the two adjacent quick-connect petals 12 to drive the two adjacent quick-connect petals 12 to move away from each other is acceptable.

[0043] Reference Figure 2 , Figure 3The quick-connect sleeve assembly 2 includes a bottom sleeve 21 and a tapered sleeve 22 fixed on the bottom sleeve 21. The tapered sleeve 22 and the bottom sleeve 21 enclose a sliding space 23. The tapered sleeve 22 has an opening and is used for inserting a pressure gauge. The bottom sleeve 21 is slidably sleeved on the rod of the quick-connect base 111. The head of the quick-connect base 111 and the quick-connect piston 112 are both slidably arranged in the sliding space 23. The head of the quick-connect base 111 and the rod of the quick-connect base 111 are both sleeved with a base sealing ring 117, and the base sealing ring 117 is pressed against the inner wall of the bottom sleeve 21 and the quick-connect base 111. A resistance sealing ring 118 is fixed on the end surface of the quick-connect piston 112 facing the opening of the tapered sleeve 22. When the resistance sealing ring 118 is in conflict with the pressure gauge, it will deform and press against the pressure gauge.

[0044] Reference Figure 4 The end surface of the head of the quick-connect base 111 facing away from the opening of the cone sleeve 22 is provided with an air filling groove 1111, and the air filling groove 1111 extends to the side wall of the head of the quick-connect base 111. The head of the quick-connect base 111 and the bottom sleeve 21 enclose an air filling space 5, and the air filling space 5 is located on the side of the head of the quick-connect base 111 away from the opening of the cone sleeve 22. The bottom sleeve 21 is fixed with an air pipe 6, and the air pipe 6, the air filling space 5 and the air filling groove 1111 are connected.

[0045] Reference Figure 2 , Figure 4 , the quick-connect base 111 is provided with a rebound seat 14 on the rod outside the bottom sleeve 21, and the rebound seat 14 is fixed to the quick-connect base 111 by bolts. A jacket elastic member 15 is provided between the rebound seat 14 and the bottom sleeve 21. In the embodiment of the present application, the jacket elastic member 15 is a spring. The jacket elastic member 15 is sleeved on the rod of the quick-connect base 111 and expands and contracts along the sliding direction of the bottom sleeve 21. The two force-bearing ends of the jacket elastic member 15 are respectively pressed against the rebound seat 14 and the bottom sleeve 21. In other embodiments, the jacket elastic member 15 can also be rubber, spring sheet, etc., and any method that can drive the bottom sleeve 21 to move and reset along the direction of the inflation space 5 to the opening of the cone sleeve 22 is acceptable, that is, any method that can drive the bottom sleeve 21 to move relative to the quick-connect bottom sleeve 21 and compress the inflation space 5 is acceptable.

[0046] Reference Figure 2 , Figure 4 The inner wall of the cone sleeve 22 is used to contact the valve body 121, and the opening size of the cone sleeve 22 increases along the arrangement direction from the quick-connect piston 112 to the quick-connect base 111, that is, the opening size of the cone sleeve 22 increases along the arrangement direction from its own opening to the inflation space 5.

[0047] Reference Figure 2 , Figure 4When testing the pressure gauge, first insert the pressure gauge into the sliding space 23 through the opening of the cone sleeve 22 and press it against the sealing ring 118, and then inflate the inflation space 5 through the air pipe 6. As the gas is injected into the inflation space 5, the inflation space 5 expands, the bottom sleeve 21 slides relative to the quick-connect base 111, and the cone sleeve 22 moves with the bottom sleeve 21 and presses against the quick-connect flap 12. The two quick-connect flaps 12 move toward each other, and the quick-connect elastic member 13 is compressed until the quick-connect flap 12 presses against the pressure gauge.

[0048] Reference Figure 2 , Figure 3 The locking mechanism 3 includes a locking member 31 and a locking assembly 32. The locking member 31 is a steel ball and is provided in plurality. The outer wall of the bottom sleeve 21 is provided with sliding holes 211 corresponding to the number of the locking members 31. The sliding holes 211 are evenly distributed in the circumferential direction around the rotary axis of the quick-connect base 111, and the sliding holes 211 are connected to the inner wall of the bottom sleeve 21. The locking members 31 are slidably arranged in different sliding holes 211. The diameter of the locking member 31 is greater than the depth of the sliding hole 211, that is, the locking member 31 cannot be completely installed in the sliding hole 211.

[0049] Reference Figure 2 , Figure 3 The outer wall of the rod of the quick-connect base 111 is provided with locking grooves 1112 corresponding to the number of the sliding holes 211. The locking grooves 1112 are concave arc grooves, and each locking groove 1112 is used to insert the end of a different locking member 31. The bottom sleeve 21 can slide until each sliding hole 211 is aligned with the corresponding locking groove 1112, and the bottom sleeve 21 can also slide until each sliding hole 211 is staggered with the locking groove 1112. When the trachea 6 is ventilated and the quick-connect flap 12 is pressed against the pressure gauge, the sliding hole 211 is aligned with the locking groove 1112.

[0050] Reference Figure 2 , Figure 3 The locking assembly 32 is used to drive the end of the locking member 31 to insert into the locking groove 1112. The locking assembly 32 includes a locking sleeve 321 and a locking elastic member 322. The locking sleeve 321 is slidably sleeved on the bottom sleeve 21 along the sliding direction of the bottom sleeve 21. The inner wall of the bottom sleeve 21 is used to contact with the locking member 31. The inner wall of the bottom sleeve 21 includes a yield wall 323, a push wall 324 and a locking wall 325 arranged in sequence along the arrangement direction from the quick-connect piston 112 to the quick-connect base 111. The locking wall 325 fits the bottom sleeve 21. There is a gap between the yield wall 323 and the bottom sleeve 21 and is used for the end of the locking member 31 to extend into. The push wall 324 is inclined and connects the locking wall 325 and the yield wall 323.

[0051] Reference Figure 2 , Figure 4The locking elastic member 322 is a spring. The locking elastic member 322 is sleeved on the bottom sleeve 21 and extends and retracts along the sliding direction of the locking sleeve 321. The two ends of the locking elastic member 322 respectively press against the bottom sleeve 21 and the locking sleeve 321. In other embodiments, the locking elastic member 322 can also be a spring, etc., and any method that can apply force to the locking sleeve 321 along the arrangement direction of the locking wall to the yield wall 323 is acceptable. The rebound seat 14 is located on the moving path of the locking sleeve 321 and is used to contact the locking sleeve 321. When the locking sleeve 321 contacts the rebound seat 14, the locking wall 325 is aligned with the sliding hole 211.

[0052] Reference Figure 2 , Figure 4 When the trachea 6 is ventilated and the quick-connect flap 12 is pressed against the pressure gauge, the bottom sleeve 21 moves relative to the quick-connect base 111 until the sliding hole 211 is aligned with the corresponding locking groove 1112. Under the action of the locking elastic member 322, the locking sleeve 321 moves, and the pushing wall 324 contacts the locking member 31 and pushes the end of the locking member 31 into the corresponding locking groove 1112 until the locking wall 325 is aligned with the sliding hole 211. At this time, the rebound seat 14 contacts the locking sleeve 321 and limits the further movement of the locking sleeve 321.

[0053] Reference Figure 1 , Figure 2 The unlocking assembly 4 includes two locking sleeve links 41, unlocking links 42 corresponding to the number of locking sleeve links 41, and a pressure plate 43 for the staff to press. The two locking sleeve links 41 are respectively located on both sides of the locking sleeve 321, and the two unlocking links 42 are respectively located on both sides of the rebound seat 14. The unlocking link 42 is hinged on the rebound seat 14, one end of the unlocking link 42 is fixed to the pressing plate, and the other end of the unlocking link 42 is hinged to the end of the locking sleeve link 41. The hinge of the unlocking link 42 and the rebound seat 14 is located between the fixed end of the unlocking link 42 and the pressing plate and the intersection of the unlocking link 42 and the locking sleeve link 41. The end of the locking sleeve link 41 away from the hinged end of itself and the unlocking link 42 is hinged on the locking sleeve.

[0054] Reference Figure 2 , Figure 4 , when the bottom sleeve 21 moves relative to the quick-connect base 111 until the sliding hole 211 is aligned with the corresponding locking groove 1112, the locking sleeve 321 moves, the locking sleeve connecting rod 41 rotates, the unlocking connecting rod 42 and the pressing plate 43 are linked, and finally the pressing plate 43 is tilted. After the test is completed, the air supply to the inflation space 5 through the air pipe 6 is stopped first, and then the pressing plate 43 is pressed, the unlocking connecting rod 42 and the locking sleeve connecting rod 41 are linked, and the locking sleeve 321 is reset to the clearance wall 323 and the sliding hole 211 are aligned. Under the action of the outer sleeve elastic member 15, the bottom sleeve 21 moves and resets, and the end of the locking member 31 moves out of the locking groove 1112 and extends into the gap between the clearance wall 323 and the bottom sleeve 21, thereby re-limiting the movement of the locking sleeve 321 relative to the bottom sleeve 21.

[0055] The implementation principle of the quick-loading and disassembly fixture of a pressure gauge connector in the embodiment of the present application is as follows: when testing the pressure gauge, first insert the pressure gauge into the sliding space 23 through the opening of the cone sleeve 22, and then supply air to the inflation space 5 through the air pipe 6, the inflation space 5 expands, the bottom sleeve 21 moves relative to the quick-connect base 111, the base drives the cone sleeve 22 to move, the inner wall of the cone sleeve 22 presses against the quick-connect flap 12 and causes the two quick-connect flaps 12 to move toward each other and tighten the pressure gauge. At this time, the sliding hole 211 is aligned with the locking groove 1112, and under the action of the locking elastic member 322, the locking sleeve 321 moves and pushes the locking member 31 to move, so that the end of the locking member 31 is inserted into the corresponding locking groove 1112, the unlocking component 4 is linked, and the pressure plate 43 is tilted upward. Finally, air can be supplied to the quick-connect base 111 through the air source to test the pressure instrument.

[0056] After the detection is completed, the continuous air supply to the inflation space 5 by the air pipe 6 is first closed, and then by pressing the pressure plate 43, the unlocking component 4 is linked to drive the locking sleeve 321 to reset, the outer sleeve elastic part 15 drives the bottom sleeve 21 to move and reset relative to the quick-connect base 111, and the quick-connect elastic part 13 drives the two quick-connect flaps 12 to move back to each other and reset.

[0057] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A quick-install and release fixture for a pressure gauge joint, characterized in that: It comprises an air-push quick-connect assembly (1) and a quick-connect sleeve assembly (2), wherein the air-push quick-connect assembly (1) comprises a quick-connect core (11) for connecting to an air source and a plurality of quick-connect flaps (12) slidably arranged on the quick-connect core (11); The quick-connect sleeve assembly (2) comprises a bottom sleeve (21) and a cone sleeve (22) connected to the bottom sleeve (21), the bottom sleeve (21) and the cone sleeve (22) enclose a sliding space (23), the cone sleeve (22) has an opening and is used for inserting a pressure gauge, the end of the quick-connect core (11) and the quick-connect flap (12) are both slidably arranged in the sliding space (23), and the sliding direction of the quick-connect flap (12) is staggered from the insertion direction of the pressure gauge; The bottom sleeve (21) is connected to an air pipe (6), and an air-filled space (5) is enclosed between the quick-connect core (11) and the bottom sleeve (21). The air-filled space (5) is in communication with the air pipe (6), and the air-filled space (5) is located at a side of the end of the quick-connect core (11) away from the opening of the cone sleeve (22). The inner wall of the cone sleeve (22) is used to contact the quick-connect flap (12), and the opening size of the cone sleeve (22) increases along the arrangement direction from its own opening to the air-filled space (5).

2. A quick-install and release fixture for a pressure gauge connector according to claim 1, characterized in that: The quick-connect core (11) is provided with an air filling groove (1111) on a surface facing away from the opening of the cone sleeve (22) in the sliding space (23), and the air filling groove (1111) is communicated with the air pipe (6).

3. A quick-install and release fixture for a pressure gauge connector according to claim 1, characterized in that: The air-pushing quick-connect assembly (1) comprises a quick-connect elastic member (13) arranged between adjacent quick-connect flaps (12), and the quick-connect elastic member (13) is used to apply a force to the two adjacent quick-connect flaps (12) to drive the two adjacent quick-connect flaps (12) to move away from each other.

4. A quick-install and release fixture for a pressure gauge connector according to claim 1, characterized in that: The quick-connect jacket assembly (2) is connected to a jacket elastic member (15), and the jacket elastic member (15) is used to drive the quick-connect jacket assembly (2) to move and reset in a direction from the inflation space (5) to the opening of the cone sleeve (22).

5. A quick-install and release fixture for a pressure gauge connector according to claim 4, characterized in that: The quick-connect core (11) is provided with a rebound seat (14), and the two force-bearing ends of the outer jacket elastic member (15) respectively contact the rebound seat (14) and the quick-connect outer jacket assembly (2).

6. A quick-install and release fixture for a pressure gauge connector according to claim 1, characterized in that: The quick-connect core (11) comprises a quick-connect base (111) for connecting to an air source and a quick-connect piston (112) for connecting to a pressure gauge; the quick-connect piston (112) comprises a connecting portion (1121) and a limiting portion (1122) connected to the connecting portion (1121); the connecting portion (1121) is connected to the quick-connect base (111); the quick-connect flap (12) comprises a flap body (121) and a flap seat (122) connected to the flap body (121); the flap seat (122) is located between the limiting portion (1122) and the quick-connect base (111).

7. A quick-install and release fixture for a pressure gauge connector according to claim 6, characterized in that: A ball (116) is rotatably arranged on the quick-connect base (111), and the petal seat (122) contacts the ball (116).

8. The quick-install and release fixture for a pressure gauge connector according to claim 1, characterized in that: The invention also comprises a locking mechanism (3), a locking member (31) and a locking assembly (32), a sliding hole (211) is provided on the bottom sleeve (21), the locking member (31) is slidably arranged in the sliding hole (211), a locking groove (1112) is provided on the quick-connect core (11) for inserting the end of the locking member (31), the locking assembly (32) is used to drive the end of the locking member (31) to insert into the locking groove (1112), the bottom sleeve (21) can slide relative to the quick-connect core (11) until the sliding hole (211) and the locking groove (1112) are aligned, and the bottom sleeve (21) can also slide relative to the quick-connect core (11) until the sliding hole (211) and the locking groove (1112) are offset; When the air pipe (6) is ventilated and the quick-connect flap (12) is pressed against the pressure gauge, the sliding hole (211) is aligned with the locking groove (1112), and the locking assembly (32) drives the end of the locking member (31) to insert into the locking groove (1112).

9. A quick-install and release fixture for a pressure gauge connector according to claim 8, characterized in that: The locking assembly (32) comprises a locking sleeve (321) and a locking elastic member (322). The locking sleeve (321) is sleeved on the bottom sleeve (21). The inner wall of the locking sleeve (321) comprises a clearance wall (323), a pushing wall (324) and a locking wall (325). A gap exists between the clearance wall (323) and the bottom sleeve (21) for the end of the locking member (31) to extend therein. The locking wall (325) fits the bottom sleeve (21). The pushing wall (324) is arranged in an inclined manner. The pushing wall (324) is located between the clearance wall (323) and the locking wall (325) and connects the clearance wall (323) and the locking wall (325). The locking elastic member (322) is used to apply a force to the locking sleeve (321) along the arrangement direction from the clearance wall (323) to the locking wall (325).

10. A quick-install and release fixture for a pressure gauge joint according to claim 9, characterized in that: The invention also comprises an unlocking assembly (4), wherein the unlocking assembly (4) comprises a locking sleeve connecting rod (41) and an unlocking connecting rod (42), wherein the unlocking connecting rod (42) is rotatably arranged on the quick-connect core (11), and the locking sleeve connecting rod (41) is rotatably arranged on the locking sleeve (321), and the unlocking connecting rod (42) is hinged to the locking sleeve connecting rod (41).

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