Fastener for workpiece connection

Abstract

The invention relates to the technical field of fasteners, in particular to a fastener for workpiece connection, which comprises a hoop, one side of the hoop is open, folded edges are symmetrically arranged on the open side of the hoop, a guide block is mounted on one of the folded edges, a turning plate is hinged to the guide block through a hinge, and the turning plate is hinged to the other side of the hoop. An elastic recovery assembly is arranged between the turning plate and one side wall of the hoop and is used for resetting the position of the turning plate; the other side of the clamping hoop is provided with a pushing assembly and connected with the clamping plate through the pushing assembly, and in the initial state, the clamping plate and the turning plate are arranged in parallel. A technician holds the equipment by hand to enable the turning plate to abut against a workpiece needing to be connected, when external force is applied to the turning plate, the turning plate can deflect, when the workpiece enters the inner side of the hoop, the position of the turning plate is reset, the multiple workpieces are clamped and fastened through the combination of the air bags on the two sides, and the workpieces can be connected in a severe marine environment. And a maintainer binds and fixes the connecting rod on the ground platform with one hand.

Description

Technical Field

[0001] The invention relates to the technical field of fasteners, and in particular to a fastener for connecting workpieces. Background Art

[0002] Fasteners are a general term for a type of mechanical parts used to fasten two or more parts or components into a whole. Fasteners are widely used in various machinery, equipment, vehicles, ships, railways, bridges, buildings, structures, tools, instruments, meters and supplies. They are characterized by a wide variety of specifications, different performances and uses, and a high degree of standardization, serialization and generalization.

[0003] There is a publication number CN214837568U, which is called a clamp, including a strip, a clamp seat, a sleeve and a locking assembly. The locking assembly is embedded in the clamp seat, one end of the strip is fixedly connected to the clamp seat, the other end of the strip is passed through the clamp seat, the strip is positioned in the clamp seat through the locking assembly, and the sleeve holds the strip. The strip passed through the clamp seat is connected to the mounting shaft of the clamp seat and abutted against the strip, and the positioning cover, the positioning screw and the mounting shaft are rotated and connected, and the mounting shaft is embedded and connected in the clamp seat. The sliding connection, so that the strip passed through the clamp seat can hold the pipeline through the locking assembly provided with the mounting shaft, the positioning cover and the positioning screw.

[0004] Although the above-mentioned prior art can clamp the pipe by the locking assembly, when the fasteners are applied to the offshore well platform to support the workpiece, due to the harsh offshore environment, the maintenance personnel usually hold the fasteners in one hand and hold the safety rope with the other hand to maintain the body balance. At this time, the operation can only be performed with one hand, and ordinary fasteners cannot be used in such an environment. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to provide a fastener for connecting workpieces.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: A fastener for connecting workpieces is designed, comprising a clamp, and one side of the clamp is open: A folded edge is symmetrically arranged on one side of the clamp opening, a guide block is installed on one of the folded edges, the guide block is hingedly connected to a flap through a hinge, and an elastic recovery component is arranged between the flap and a side wall of the clamp for resetting the flap position; A propulsion assembly is disposed on the other side of the clamp and is connected to the clamp plate through the propulsion assembly. In an initial state, the clamp plate and the flap are disposed parallel to each other.

[0007] Preferably, the elastic recovery component comprises an elastic band, a rivet and a guide groove; The guide groove is formed on the outer surface of the guide block, and the two ends of the elastic band are fixed to the side wall of the clamp and the flap by rivets respectively, and in the initial state, the elastic band is in a taut state.

[0008] Preferably, the propulsion assembly comprises a rotating wheel, a threaded rod and a connecting piece; The threaded rod passes through the threaded hole of the clamp and extends to the inner side of the clamp, and the threaded rod is movably connected with the clamping plate through a connecting piece, and the rotating wheel is installed at the other end of the threaded rod.

[0009] Preferably, two fixing seats are symmetrically installed on the inner side of the clamp, one end of each fixing seat is connected to a shunt tube, a junction box is connected between the two shunt tubes, and a reagent mixing assembly is arranged on the inner side of the junction box.

[0010] Preferably, the reagent mixing assembly comprises an outer rotating cylinder, an inner cylinder, a first through hole and a second through hole; The inner cylinder is fixedly mounted on the bottom of the junction box, the outer rotating cylinder is sleeved on the outer side of the inner cylinder, and the outer surface of the inner cylinder and the inner surface of the outer rotating cylinder are in contact with each other, the upper end of the outer rotating cylinder extends to the upper side of the junction box, the first through hole and the second through hole are respectively provided on the inner cylinder and the outer rotating cylinder, and the positions of the first through hole and the second through hole correspond to each other one by one; A regulating component is also arranged between the bottom of the outer drum and the end of the diversion pipe.

[0011] Preferably, the regulating component includes a delivery port, a first gear, a second gear and a ball; The first gear is installed at the bottom of the outer drum, the second gear is installed at the bottom of the sphere, and the first gear and the second gear are meshed with each other. The sphere is located at the port position of the diverter pipe, and the size of the inner side of the diverter pipe matches the size of the sphere. The delivery port is opened on the extension line of the center of the sphere.

[0012] Preferably, a connecting tube is installed at the other end of the flow tube, and a chamber is opened on the inner side of the fixing seat, in which an airbag bag is placed, one end of the connecting tube extends to the inner side of the chamber, and the opening of the airbag bag is fixedly sleeved on the end position of the connecting tube.

[0013] Preferably, two rollers are rotatably provided on one side of the chamber, and the airbag bag passes through the two rollers and extends to the outside of the chamber.

[0014] Preferably, a straight rod is fixedly installed on the upper end of the inner cylinder, a cutter is horizontally installed on the top of the straight rod, a plastic storage bag is bonded to the upper end of the inner wall of the outer rotating cylinder, and the inner side of the plastic storage bag is filled with oil, and when the cutter rotates to the position of the plastic storage bag and contacts it, the plastic storage bag is punctured.

[0015] Preferably, the inner cylinder is filled with an aqueous solution of ammonium bicarbonate, and the air bag is filled with aluminum sulfate powder.

[0016] The fastener for connecting workpieces proposed in the present invention has the beneficial effect that: with the fastener for connecting workpieces, a technician uses a handheld device to press a flap against the workpiece to be connected. When an external force is applied thereto, the flap can be deflected. When the workpiece enters the inner side of the clamp, the flap position is reset. Combined with the air bags on both sides, multiple workpieces can be clamped and fastened. In harsh marine environments, maintenance personnel can bundle and fix the connecting rods on the well platform with one hand. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The present invention is a schematic structural diagram of a fastener for connecting workpieces.

[0018] Figure 2 This is a schematic structural diagram from another perspective of a fastener for connecting workpieces proposed by the present invention.

[0019] Figure 3 This is a schematic structural diagram of a connecting piece of a fastener for connecting workpieces proposed by the present invention.

[0020] Figure 4 for Figure 2 A schematic structural diagram of the A portion of a proposed fastener for connecting workpieces.

[0021] Figure 5 This is a schematic diagram of the structure inside a junction box of a workpiece connection fastener proposed by the present invention.

[0022] Figure 6 The present invention is a schematic structural diagram of a reagent mixing assembly for a fastener for connecting workpieces.

[0023] Figure 7 The present invention is a schematic structural diagram of the positional relationship between a shunt pipe and a connecting pipe of a workpiece connecting fastener proposed by the present invention.

[0024] In the figure: a rotating wheel 1, a threaded rod 2, a reagent mixing assembly 3, an outer rotating cylinder 31, an inner cylinder 32, a first through hole 33, a second through hole 34, a delivery port 4, a junction box 5, a clamp 6, a splint 7, a connecting piece 8, a rotating disk 81, a groove 82, a connecting column 83, a fixing seat 9, a chamber 10, a roller 11, an airbag bag 12, a folded edge 13, an elastic band 14, a hinge 15, a rivet 16, a guide groove 17, a guide block 18, a shunt pipe 19, a flap 20, a first gear 21, a second gear 22, a sphere 23, a connecting pipe 24, a plastic storage bag 25, a cutter 26, and a straight rod 27. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0026] Example 1, reference Figure 1-4 A fastener for connecting workpieces, including a clamp 6, and one side of the clamp 6 is open, and one side of the clamp 6 is symmetrically provided with folded edges 13, one of the folded edges 13 is installed with a guide block 18, and the guide block 18 is hinged with a flap 20 through a hinge 15, and an elastic recovery component is provided between the flap 20 and a side wall of the clamp 6 for resetting the position of the flap 20, and a propulsion component is provided on the other side of the clamp 6, and is connected to the clamp 7 through the propulsion component. In the initial state, the clamp 7 and the flap 20 are arranged parallel to each other.

[0027] The elastic recovery component includes an elastic band 14, a rivet 16 and a guide groove 17. The guide groove 17 is opened on the outer surface of the guide block 18. The two ends of the elastic band 14 are respectively fixed to the side wall of the clamp 6 and the flap 20 by the rivet 16, and in the initial state, the elastic band 14 is in a taut state. The propulsion component includes a rotating wheel 1, a threaded rod 2 and a connecting piece 8; the threaded rod 2 passes through the threaded hole of the clamp 6 and extends to the inner side of the clamp 6, and the threaded rod 2 is movably connected with the splint 7 through the connecting piece 8, and the rotating wheel 1 is installed at the other end of the threaded rod 2.

[0028] A large number of exploration platforms are usually built at sea, and fasteners are needed to fasten workpieces on the platforms, such as the fastening of multiple pipes or rods. However, the environment on the ocean is harsh, usually accompanied by strong winds. When fastening workpieces on the platform in strong winds, technicians are usually suspended by safety ropes, with one hand holding another safety rope to ensure body balance. However, in this case, the technicians can only operate with one hand.

[0029] To this end, one side of the clamp 6 is set to an open state, and two folded edges 13 are symmetrically set at the opening. A guide block 18 is installed on one of the folded edges 13, and the flap 20 is hinged by the hinge 15. When the technician holds the clamp 6, the flap 20 is pressed against the outside of the workpiece to be fixed, and an external force is applied to one side of the workpiece. After the external force is applied, the flap 20 will rotate on the inside of the clamp 6 due to the reaction force, until the flap 20 rotates to the workpiece smoothly entering the inside of the clamp 6. Then the technician removes the external force. At this time, the flap 20 has stretched the elastic band 14 during the previous rotation, and the elastic force applied by the elastic band 14 to the flap 20 restores the flap 20 to its initial position until one end of the flap 20 is pressed against one of the folded edges 13.

[0030] After the airbag 12 is inflated and the workpiece is clamped, the propulsion assembly is operated. The technician manually turns the wheel 1, and the threaded rod 2 cooperates with the threaded hole reserved on the clamp 6 to drive the threaded rod 2 to move toward the inside of the clamp 6. At this time, the clamp 7 located on the inside of the clamp 6 will move toward the side close to the flap 20 to clamp the workpiece tightly. When the threaded rod 2 moves against the clamp 7, the threaded rod 2 drives the turntable 81 in the groove 82 to rotate, so that the threaded rod 2 and the turntable 81 rotate synchronously, thereby promoting the movement of the clamp 7. After the distance between the clamp 7 and the flap 20 is reduced, until they contact with the workpiece, the workpiece is clamped and tightened.

[0031] Example 2, reference Figure 5-7 The difference between this embodiment and embodiment 1 is that two fixing seats 9 are symmetrically installed on the inner side of the clamp 6, one end of each fixing seat 9 is connected to a shunt tube 19, a junction box 5 is connected between the two shunt tubes 19, and a reagent mixing assembly 3 is arranged on the inner side of the junction box 5. The reagent mixing assembly 3 includes an outer rotating cylinder 31, an inner cylinder 32, a first through hole 33 and a second through hole 34. The inner cylinder 32 is fixedly installed on the bottom of the junction box 5, the outer rotating cylinder 31 is sleeved on the outer side of the inner cylinder 32, and the outer surface of the inner cylinder 32 and the inner surface of the outer rotating cylinder 31 are in contact with each other, and the upper end of the outer rotating cylinder 31 extends to the upper outer side of the junction box 5, the first through hole 33 and the second through hole 34 are respectively opened on the inner cylinder 32 and the outer rotating cylinder 31, and the positions of the first through hole 33 and the second through hole 34 correspond one by one.

[0032] A connecting pipe 24 is installed at the other end of the shunt pipe 19, and a chamber 10 is also opened on the inner side of the fixed seat 9. An airbag bag 12 is placed in the chamber 10. One end of the connecting pipe 24 extends to the inner side of the chamber 10, and the opening of the airbag bag 12 is fixedly sleeved on the end position of the connecting pipe 24. Two rollers 11 are rotatably provided on one side of the chamber 10, and the airbag bag 12 passes through the two rollers 11 and extends to the outside of the chamber 10.

[0033] When the flap 20 is turned over, a gap is left between the flap 20 and the fixing seats 9 on both sides, the inner tube 32 is filled with an aqueous solution of ammonium bicarbonate, and the airbag bag 12 is filled with aluminum sulfate powder.

[0034] The surfaces of some workpieces are irregular, and there are bends or special shapes. It is very difficult to adjust the installation fit in a harsh installation environment.

[0035] To this end, a reagent mixing assembly 3 is provided in the junction box 5. The reagent mixing assembly 3 mainly includes an outer rotating cylinder 31, an inner cylinder 32, a first through hole 33 and a second through hole 34. At the same time, the inner cylinder 32 is filled with an aqueous solution of ammonium bicarbonate. In the initial state, the positions of the first through hole 33 and the second through hole 34 do not overlap. Before the installation begins, the aqueous solution of ammonium bicarbonate in the inner cylinder 32 does not leak out. When the clamp 6 needs to be installed, the technician rotates the outer rotating cylinder 31 in advance so that the second through hole 34 on the outer rotating cylinder 31 and the first through hole 33 on the inner cylinder coincide with each other, and the aqueous solution of ammonium bicarbonate in the inner cylinder 32 enters through the first through hole 33 and the second through hole 34. In the junction box 5, the sphere 23 at the end of the shunt tube 19 rotates synchronously with the rotation of the outer drum 31, and the aqueous solution of ammonium bicarbonate passes through the delivery port 4 on the sphere 23 and the connecting tube 24 and finally enters the inner side of the airbag bag 12. Since aluminum sulfate powder is placed on the inner side of the airbag bag 12, the aluminum sulfate powder will produce carbon dioxide gas during the contact process with the ammonium bicarbonate solution, and the generated gas will fill the airbag bag 12. When the airbag bag 12 is filled with gas, the airbag bag 12 will cling to the outer surface of the workpiece, and wrap the special-shaped workpiece and the bent workpiece in all aspects. In this way, the fit during tightening can be effectively improved. The specific chemical reaction formula is as follows: 6NH4HCO3 +Al2(SO4)3 +6H2O → 2Al(OH)3↓ +6CO2↑+ 3(NH4)2SO4 Example 3, reference Figure 5-6 The difference between this embodiment and embodiment 1 and embodiment 2 is that a regulating component is further provided between the bottom of the outer drum 31 and the end of the shunt pipe 19. The regulating component includes a delivery port 4, a first gear 21, a second gear 22 and a sphere 23; the first gear 21 is installed at the bottom of the outer drum 31, the second gear 22 is installed at the bottom of the sphere 23, and the first gear 21 and the second gear 22 are meshed with each other, the sphere 23 is located at the port position of the shunt pipe 19, and the size of the inner side of the shunt pipe 19 matches the size of the sphere 23, and the delivery port 4 is through-opened on the extension line of the center of the sphere 23.

[0036] A straight rod 27 is fixedly installed on the upper end of the inner cylinder 32, and a cutter 26 is horizontally installed on the top of the straight rod 27. A plastic storage bag 25 is bonded to the upper end of the inner wall of the outer rotating cylinder 31, and the inner side of the plastic storage bag 25 is filled with oil. When the cutter 26 rotates to the position of the plastic storage bag 25 and contacts it, the plastic storage bag 25 is punctured.

[0037] After the airbag bag 12 is inflated, it needs to be maintained for a period of time. At this time, what needs to be done is to prevent the airbag bag 12 from leaking after inflation.

[0038] To this end, after the airbag 12 is inflated, the technician rotates the outer drum 31 so that the outer drum 31 returns to its initial position, that is, the first through hole 33 and the second through hole 34 do not overlap each other. During this process, the first gear 21 at the lower end of the outer drum 31 rotates to drive the second gear 22 to rotate. As the second gear 22 rotates, the ball 23 rotates to adjust the position of the delivery port 4 to a state perpendicular to the shunt pipe 19. Since the outer drum 31 extends to the upper outside of the junction box 5 and the upper end of the inner drum 32 is in a closed state, when the outer drum 31 is in a closed state, the outer drum 3 When the inner cylinder 32 continues to rotate, the plastic storage bag 25 at the upper end of the inner cylinder 32 is driven to change its position. When the plastic storage bag 25 contacts the cutter 26 at the upper end of the inner cylinder 32, the cutter 26 pierces the plastic storage bag 25, so that the oil inside the plastic storage bag 25 overflows and is injected into the outer cylinder 31, so that the oil is located on the inner side of the outer cylinder 31 above the inner cylinder 32. In this way, the oil, the first through hole 33 and the second through hole 34 that do not overlap, and the closed delivery port 4 form three air isolation barriers to ensure that the airbag bag 12 is isolated from the external air.

[0039] The working principle of the device is: A large number of exploration platforms are usually built at sea, and fasteners are needed to fasten workpieces on the platforms, such as the fastening of multiple pipes or rods. However, the environment on the ocean is harsh, usually accompanied by strong winds. When fastening workpieces on the platform in strong winds, technicians are usually suspended by safety ropes, with one hand holding another safety rope to ensure body balance. However, in this case, the technicians can only operate with one hand.

[0040] To this end, one side of the clamp 6 is set to an open state, and two folded edges 13 are symmetrically set at the opening. A guide block 18 is installed on one of the folded edges 13, and the flap 20 is hinged by the hinge 15. When the technician holds the clamp 6, the flap 20 is pressed against the outside of the workpiece to be fixed, and an external force is applied to one side of the workpiece. After the external force is applied, the flap 20 will rotate on the inside of the clamp 6 due to the reaction force, until the flap 20 rotates to the workpiece smoothly entering the inside of the clamp 6. Then the technician removes the external force. At this time, the flap 20 has stretched the elastic band 14 during the previous rotation, and the elastic force applied by the elastic band 14 to the flap 20 restores the flap 20 to its initial position until one end of the flap 20 is pressed against one of the folded edges 13.

[0041] After the airbag 12 is inflated and the workpiece is clamped, the propulsion assembly is operated. The technician manually turns the wheel 1, and the threaded rod 2 cooperates with the threaded hole reserved on the clamp 6 to drive the threaded rod 2 to move toward the inside of the clamp 6. At this time, the clamp 7 located on the inside of the clamp 6 will move toward the side close to the flap 20 to clamp the workpiece tightly. When the threaded rod 2 moves against the clamp 7, the threaded rod 2 drives the turntable 81 in the groove 82 to rotate, so that the threaded rod 2 and the turntable 81 rotate synchronously, thereby promoting the movement of the clamp 7. After the distance between the clamp 7 and the flap 20 is reduced, until they contact with the workpiece, the workpiece is clamped and tightened.

[0042] The surfaces of some workpieces are irregular, and there are bends or special shapes. It is very difficult to adjust the installation fit in a harsh installation environment.

[0043] To this end, a reagent mixing assembly 3 is provided in the junction box 5. The reagent mixing assembly 3 mainly includes an outer rotating cylinder 31, an inner cylinder 32, a first through hole 33 and a second through hole 34. At the same time, the inner cylinder 32 is filled with an aqueous solution of ammonium bicarbonate. In the initial state, the positions of the first through hole 33 and the second through hole 34 do not overlap. Before the installation begins, the aqueous solution of ammonium bicarbonate in the inner cylinder 32 does not leak out. When the clamp 6 needs to be installed, the technician rotates the outer rotating cylinder 31 in advance so that the second through hole 34 on the outer rotating cylinder 31 and the first through hole 33 on the inner cylinder coincide with each other, and the aqueous solution of ammonium bicarbonate in the inner cylinder 32 enters through the first through hole 33 and the second through hole 34. In the junction box 5, the sphere 23 at the end of the shunt tube 19 rotates synchronously with the rotation of the outer drum 31, and the aqueous solution of ammonium bicarbonate passes through the delivery port 4 on the sphere 23 and the connecting tube 24 and finally enters the inner side of the airbag bag 12. Since aluminum sulfate powder is placed on the inner side of the airbag bag 12, the aluminum sulfate powder will produce carbon dioxide gas during the contact process with the ammonium bicarbonate solution, and the generated gas will fill the airbag bag 12. When the airbag bag 12 is filled with gas, the airbag bag 12 will cling to the outer surface of the workpiece, and wrap the special-shaped workpiece and the bent workpiece in all aspects. In this way, the fit during tightening can be effectively improved. The specific chemical reaction formula is as follows: 6NH4HCO3 +Al2(SO4)3 +6H2O → 2Al(OH)3↓ +6CO2↑+ 3(NH4)2SO4 After the airbag bag 12 is inflated, it needs to be maintained for a period of time. At this time, what needs to be done is to prevent the airbag bag 12 from leaking after inflation.

[0044] To this end, after the airbag 12 is inflated, the technician rotates the outer drum 31 so that the outer drum 31 returns to its initial position, that is, the first through hole 33 and the second through hole 34 do not overlap each other. During this process, the first gear 21 at the lower end of the outer drum 31 rotates to drive the second gear 22 to rotate. As the second gear 22 rotates, the ball 23 rotates to adjust the position of the delivery port 4 to a state perpendicular to the shunt pipe 19. Since the outer drum 31 extends to the upper outside of the junction box 5 and the upper end of the inner drum 32 is in a closed state, when the outer drum 31 is in a closed state, the outer drum 3 When the inner cylinder 32 continues to rotate, the plastic storage bag 25 at the upper end of the inner cylinder 32 is driven to change its position. When the plastic storage bag 25 contacts the cutter 26 at the upper end of the inner cylinder 32, the cutter 26 pierces the plastic storage bag 25, so that the oil inside the plastic storage bag 25 overflows and is injected into the outer cylinder 31, so that the oil is located on the inner side of the outer cylinder 31 above the inner cylinder 32. In this way, the oil, the first through hole 33 and the second through hole 34 that do not overlap, and the closed delivery port 4 form three air isolation barriers to ensure that the airbag bag 12 is isolated from the external air.

[0045] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A fastener for connecting workpieces, comprising a clamp (6), wherein one side of the clamp (6) is open, and characterized in that: A folded edge (13) is symmetrically arranged on one side of the opening of the clamp (6), a guide block (18) is mounted on one of the folded edges (13), the guide block (18) is hingedly connected to a flap (20) via a hinge (15), and an elastic recovery component is arranged between the flap (20) and a side wall of the clamp (6) for resetting the position of the flap (20); A propulsion assembly is provided on the other side of the clamp (6), and is connected to the clamp plate (7) via the propulsion assembly. In an initial state, the clamp plate (7) and the flap (20) are arranged parallel to each other.

2. The workpiece connecting fastener according to claim 1, characterized in that: The elastic recovery component comprises an elastic band (14), a rivet (16) and a guide groove (17); The guide groove (17) is formed on the outer surface of the guide block (18), and the two ends of the elastic band (14) are respectively fixed to the side wall of the clamp (6) and the flap (20) by rivets (16), and in the initial state, the elastic band (14) is in a taut state.

3. The workpiece connection fastener according to claim 2, characterized in that: The propulsion assembly comprises a rotating wheel (1), a threaded rod (2) and a connecting piece (8); The threaded rod (2) passes through the threaded hole of the clamp (6) and extends to the inner side of the clamp (6), and the threaded rod (2) is movably connected to the clamp (7) via a connecting piece (8), and the rotating wheel (1) is mounted on the other end of the threaded rod (2).

4. The workpiece connecting fastener according to claim 3, characterized in that: Two fixing seats (9) are symmetrically mounted on the inner side of the clamp (6); one end of each fixing seat (9) is connected to a shunt tube (19); a junction box (5) is connected between the two shunt tubes (19); and a reagent mixing assembly (3) is arranged on the inner side of the junction box (5).

5. The workpiece connecting fastener according to claim 4, characterized in that: The reagent mixing assembly (3) comprises an outer rotating cylinder (31), an inner cylinder (32), a first through hole (33) and a second through hole (34); The inner cylinder (32) is fixedly mounted on the bottom of the junction box (5); the outer rotating cylinder (31) is sleeved on the outer side of the inner cylinder (32); the outer surface of the inner cylinder (32) and the inner surface of the outer rotating cylinder (31) are in contact with each other; the upper end of the outer rotating cylinder (31) extends to the upper side of the outer side of the junction box (5); the first through hole (33) and the second through hole (34) are respectively formed on the inner cylinder (32) and the outer rotating cylinder (31); and the positions of the first through hole (33) and the second through hole (34) correspond to each other; A regulating component is also provided between the bottom of the outer drum (31) and the end of the diversion pipe (19).

6. The workpiece connecting fastener according to claim 5, characterized in that: The regulating component comprises a delivery port (4), a first gear (21), a second gear (22) and a ball (23); The first gear (21) is mounted on the bottom of the outer drum (31), the second gear (22) is mounted on the bottom of the sphere (23), and the first gear (21) and the second gear (22) are meshed with each other. The sphere (23) is located at the port of the diverter pipe (19), and the size of the inner side of the diverter pipe (19) matches the size of the sphere (23). The delivery port (4) is through-opened on the extension line of the center of the sphere (23).

7. The workpiece connecting fastener according to claim 6, characterized in that: A connecting pipe (24) is installed at the other end of the shunt pipe (19), a chamber (10) is also provided on the inner side of the fixing seat (9), an airbag bag (12) is placed in the chamber (10), one end of the connecting pipe (24) extends to the inner side of the chamber (10), and the opening of the airbag bag (12) is fixedly sleeved on the end position of the connecting pipe (24).

8. The workpiece connecting fastener according to claim 7, characterized in that: Two rollers (11) are rotatably disposed on one side of the chamber (10), and the airbag bag (12) passes through the two rollers (11) and extends to the outside of the chamber (10).

9. The workpiece connecting fastener according to claim 8, characterized in that: A straight rod (27) is fixedly mounted on the upper end of the inner cylinder (32), a cutter (26) is horizontally mounted on the top of the straight rod (27), a plastic storage bag (25) is bonded to the upper end of the inner wall of the outer rotating cylinder (31), and the inside of the plastic storage bag (25) is filled with oil, and when the cutter (26) rotates to the position of the plastic storage bag (25) and contacts the plastic storage bag (25), the plastic storage bag (25) is punctured.

10. The workpiece connecting fastener according to claim 9, characterized in that: The inner cylinder (32) is filled with an aqueous solution of ammonium bicarbonate, and the air bag (12) is filled with aluminum sulfate powder.

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