Hemodialysis centralized liquid supply connecting device for dialysis machine

Abstract

The utility model belongs to the technical field of hemodialysis concentrated liquid supply, and discloses a hemodialysis concentrated liquid supply connecting device for a dialysis machine, which comprises an upper tool head and a tool body, the upper tool head is connected with the tool body through a fixing pin, and a hydraulic connecting device is arranged between the upper tool head and the tool body. Comprising a first clamp, a second clamp, an oil cavity box, a spring and a handle, through mutual cooperation of the spring, the oil cavity box and the handle, the second clamp is driven to move towards a tool head in a tool body, the distance between the first clamp and the second clamp is adjusted, and the silicone tube and the hemodialysis concentrated liquid supply three-way adapter are hydraulically fixed. According to the hemodialysis concentrated liquid supply connecting device for the dialysis machine, through cooperation of the hydraulic connecting device and the heat-seal connecting device, a convenient, rapid, firm and reliable connecting mode can be provided for the silicone tube and the hemodialysis concentrated liquid supply three-way adapter, meanwhile, the sealing performance is guaranteed, and good working conditions and treatment effects are provided for hemodialysis treatment.

Description

Technical Field

[0001] The utility model belongs to the technical field of centralized fluid supply for hemodialysis, in particular to a connecting device for centralized fluid supply for hemodialysis machines. Background Art

[0002] The hemodialysis machine is a set of extracorporeal balance devices that simulates human kidney function, corrects electrolytes in the body and maintains acid-base balance. It is a blood purification method and equipment, which is divided into two parts: the blood monitoring alarm system and the dialysate supply system. The working principle of the hemodialysis machine is: the dialysis concentrate and dialysis water are prepared into qualified dialysis fluid through the dialysis fluid supply system, and then pass through the hemodialyzer to perform solute diffusion, osmosis and ultrafiltration with the patient's blood drawn from the blood monitoring alarm system; the patient's blood after the action returns to the patient's body through the blood monitoring alarm system, and at the same time, the liquid after dialysis is discharged from the dialysis fluid supply system as waste liquid.

[0003] Because the hemodialysis centralized fluid supply system needs to deliver the prepared dialysate to the dialysis machine for use, a delivery channel is required. This channel is composed of a PP tee and a silicone tube. The silicone tube and the hemodialysis centralized fluid supply tee adapter need to be fixed by a clamp after being connected. Currently, there is no special equipment on the market that can crimp the tee adapter and the silicone tube. In the past, throat clamps were used for connection and fixation, but throat clamps cannot withstand high hot water temperatures and are easily damaged. For this reason, we proposed a connection device for hemodialysis centralized fluid supply for dialysis machines. Utility Model Content

[0004] In order to solve the problems raised in the above-mentioned background technology, the utility model provides a connection device for centralized hemodialysis fluid supply for dialysis machines, which not only solves the hydraulic connection problem between the three-way adapter and the silicone tube, but also improves the working efficiency. It is convenient and efficient to press and mold in one time. In addition, the combination of hydraulic connection and heat sealing connection can withstand higher temperatures during hot water disinfection, thereby making the connection and fixation more secure and stable, greatly reducing the damage rate of the connecting parts and extending the service life.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a connection device for hemodialysis centralized liquid supply for a dialysis machine, comprising an upper tool head and a tool body, wherein the upper tool head and the tool body are connected by a fixing pin, a hydraulic connection device is arranged between the upper tool head and the tool body, and the hydraulic connection device comprises a first clamp, a second clamp, an oil chamber box, a spring and a handle, wherein the second clamp is driven to move in the tool body toward the upper tool head through the mutual cooperation of the spring, the oil chamber box and the handle, and the spacing between the first clamp and the second clamp is adjusted, so as to realize the action of hydraulic fixing of the silicone tube and the hemodialysis centralized liquid supply three-way adapter;

[0006] The first clamp and the second clamp are both provided with heat-sealing connection devices inside, and the heat-sealing connection devices include carbon fiber heating tubes. When the hydraulic connection device moves, the heat generated by the carbon fiber heating tubes is transferred to the inner surfaces of the first clamp and the second clamp, so as to realize heat-sealing and pressing of the silicone tube and the hemodialysis centralized liquid supply three-way adapter.

[0007] The lower surface of the upper tool head is provided with an installation component for implementing the installation action on the first clamp, and the right side surface of the tool body is fixedly installed with a controller for controlling the operation of the hydraulic connection device and the heat sealing connection device.

[0008] Preferably, the hydraulic connecting device also includes a lower tool head slidably sleeved on the inner wall of the tool body, the lower surface of the tool body is rotatably sleeved on the upper surface of the oil chamber box, the lower end outer surface of the second clamp is fixedly sleeved on the inner wall of the lower tool head, a hydraulic switch is fixedly installed on the left outer surface of the oil chamber box, the lower end outer surface of the second clamp passes through the tool body and extends to the inner wall of the oil chamber box, the bottom end of the second clamp located in the oil chamber is fixedly sleeved with a sealing ring, and the lower end outer surface of the second clamp located in the oil chamber and the outer surface of the sealing ring are both slidably sleeved on the inner wall of the oil chamber box.

[0009] Preferably, a handle is threadedly connected to the lower surface of the oil chamber box, and a connecting rod and a mounting block are fixedly connected to the front side of the oil chamber box, the handle is hinged at one end of the connecting rod through a pin, the longitudinal section of the mounting block is hexagonal, and a pressure rod is hinged to the inner wall of the handle through a pin, the spring is fixedly installed between the back side of the protruding end of the pressure rod and the front side of the mounting block, and one end of the pressure rod penetrates the oil chamber box and extends to the interior of the oil chamber box.

[0010] Preferably, the surfaces opposite to each other of the first clamp and the second clamp are provided with symmetrically distributed semi-compression holes, wherein four of the semi-compression holes are divided into two groups with two as a group, and when the hydraulic connection device drives the second clamp to contact the first clamp, two complete and symmetrical full-compression holes are formed, and the center distance of the two full-compression holes is completely consistent with the center distance of the supply and return pipeline of the hemodialysis centralized fluid supply three-way adapter.

[0011] Preferably, a heat sealing cavity is opened inside the first clamp and the second clamp, the heat sealing connection device also includes an insulating pad fixedly installed on the inner wall of the outer side of the heat sealing cavity, the carbon fiber heating tube is fixedly installed on the inner bottom wall of the heat sealing cavity, and a micro temperature sensor is fixedly installed on the lower surface of the first clamp and the second clamp.

[0012] Preferably, the detection end of one of the micro temperature sensors passes through the first clamp and extends to the inside of the heat sealing cavity in the first clamp, and the detection end of the other micro temperature sensor passes through the second clamp and extends to the inside of the heat sealing cavity in the second clamp.

[0013] Preferably, the mounting assembly includes a card slot and a card block, the card slot is opened in a linear array on the lower surface of the upper tool head, the card block is fixedly installed in a linear array on the upper surface of the first fixture, the card block and the longitudinal section of the card block are both T-shaped, and the inner wall of the socket of the upper tool head and the inner wall of the socket of the tool body are both inserted with movable pins.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] 1. The utility model can realize one-time compression molding of the three-way adapter and the silicone tube by arranging a hydraulic connection device, which is convenient and efficient. In addition, the hydraulic connection method can withstand higher temperatures during hot water disinfection, thereby making the connection and fixation more reliable and stable, greatly reducing the damage rate of the connecting parts and extending the service life, and solving the problems existing in the existing three-way adapter and silicone tube using a throat clamp for connection and fixation.

[0016] 2. The utility model sets a heat-sealing connection device, utilizes the carbon fiber heating tube to transfer the generated heat to the inner wall of the semi-clamping hole of the first clamp and the second clamp, and heat-seals and presses the silicone tube and the hemodialysis centralized liquid supply three-way adapter to achieve reliable sealing performance and prevent liquid leakage or external pollutants from entering the system.

[0017] 3. The utility model can provide a convenient, fast, firm and reliable connection method for the silicone tube and the hemodialysis centralized liquid supply three-way adapter through the cooperation of the hydraulic connection device and the heat-sealing connection device, while ensuring the sealing performance, providing good working conditions and treatment effects for hemodialysis treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 For this utility model Figure 1 A magnified view of the structure at center;

[0020] Figure 3 This is a three-dimensional diagram of the installation block structure of the utility model;

[0021] Figure 4 This is a three-dimensional diagram of the sealing ring structure of the utility model;

[0022] Figure 5 This is a three-dimensional diagram of the first clamp structure of the utility model;

[0023] Figure 6 This is a three-dimensional diagram of the semi-pressed hole structure of the utility model;

[0024] Figure 7This is a three-dimensional diagram of the structure of the micro temperature sensor of the utility model;

[0025] Figure 8 This is a three-dimensional diagram of the structure of the carbon fiber heating tube of the utility model;

[0026] Fig. 9 This is an exploded view of the working steps of the hydraulic connection device of the utility model.

[0027] In the figure: 1. upper tool head; 2. tool body; 3. fixing pin; 4. first clamp; 41. second clamp; 42. oil chamber box; 43. spring; 44. handle; 45. lower tool head; 46. hydraulic switch; 47. sealing ring; 48. handle; 49. connecting rod; 410. mounting block; 411. pressure rod; 412. semi-pressing hole; 5. carbon fiber heating tube; 51. heat sealing cavity; 52. micro temperature sensor; 53. insulation pad; 6. controller; 7. movable pin; 71. slot; 72. clamping block. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] like Figures 1 to 9 As shown, the utility model provides a connection device for hemodialysis centralized liquid supply for a dialysis machine, comprising an upper tool head 1 and a tool body 2, the upper tool head 1 and the tool body 2 are connected by a fixing pin 3, a hydraulic connection device is arranged between the upper tool head 1 and the tool body 2, and the hydraulic connection device comprises a first clamp 4, a second clamp 41, an oil chamber box 42, a spring 43 and a handle 44, through the mutual cooperation of the spring 43, the oil chamber box 42 and the handle 44, the second clamp 41 is driven to move in the tool body 2 toward the upper tool head 1, the spacing between the first clamp 4 and the second clamp 41 is adjusted, and the silicone tube and the hemodialysis centralized liquid supply three-way adapter are hydraulically fixed;

[0030] The first clamp 4 and the second clamp 41 are both provided with heat-sealing connection devices inside, and the heat-sealing connection devices include a carbon fiber heating tube 5. When the hydraulic connection device moves, the heat generated by the carbon fiber heating tube 5 is transferred to the inner surface of the first clamp 4 and the second clamp 41 to achieve heat-sealing and pressing of the silicone tube and the hemodialysis centralized liquid supply three-way adapter.

[0031] The lower surface of the upper tool head 1 is provided with an installation component for installing the first fixture 4, such as Figure 1 , Figure 3 , Figure 4 , Figure 5 and Fig. 9 As shown, the installation assembly includes a slot 71 and a block 72. The slot 71 is opened in a linear array on the lower surface of the upper tool head 1, and the block 72 is fixedly installed in a linear array on the upper surface of the first fixture 4. The block 72 and the longitudinal section of the block 72 are both T-shaped, and the inner wall of the socket of the upper tool head 1 and the inner wall of the socket of the tool body 2 are both plugged with a movable pin 7.

[0032] The above scheme is adopted: when in use, the operator holds the handle 48, pulls out the movable pin 7 located on the inner wall of the insertion hole of the upper tool head 1 and the inner wall of the insertion hole of the tool body 2, and rotates the upper tool head 1 clockwise through the set fixed pin 3, driving the upper tool head 1 to rotate clockwise with the axis of the fixed pin 3 as the center of the circle, so that the upper tool head 1 and the tool body 2 are in an open state. At this time, turn on the liquid level switch, place the silicone tube and the hemodialysis centralized liquid supply three-way adapter between the first clamp 4 and the second clamp 41, and set a sleeve on the outer surface of the interface between the silicone tube and the hemodialysis centralized liquid supply three-way adapter, then screw back the upper tool head 1 and insert the movable pin 7 into the inner wall of the insertion hole of the upper tool head 1 and the inner wall of the insertion hole of the tool body 2.

[0033] A controller 6 for controlling the operation of the hydraulic connection device and the heat sealing connection device is fixedly mounted on the right side surface of the tool body 2 .

[0034] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 and Fig. 9As shown, the hydraulic connection device also includes a lower tool head 45 slidably sleeved on the inner wall of the tool body 2, the lower surface of the tool body 2 is rotatably sleeved with the upper surface of the oil chamber box 42, the lower end outer surface of the second clamp 41 is fixedly sleeved with the inner wall of the lower tool head 45, and a hydraulic switch 46 is fixedly installed on the left outer surface of the oil chamber box 42. The lower end outer surface of the second clamp 41 passes through the tool body 2 and extends to the inner wall of the oil chamber box 42. The bottom end of the second clamp 41 located in the oil chamber is fixedly sleeved with a sealing ring 47. The lower end outer surface of the second clamp 41 located in the oil chamber and the outer surface of the sealing ring 47 are both slidably sleeved with the inner wall of the oil chamber box 42. A handle 48 is threadedly connected to the lower surface of the oil chamber box 42, and a connecting rod 49 and a mounting block 410 are fixedly connected to the front of the oil chamber box 42. The handle 48 is threadedly connected to the lower surface of the oil chamber box 42. A connecting rod 49 and a mounting block 410 are respectively fixedly connected to the front of the oil chamber box 42. 4 is hinged to one end of the connecting rod 49 through a pin shaft, the longitudinal section of the mounting block 410 is hexagonal, the inner wall of the handle 44 is hinged with a pressure rod 411 through a pin shaft, the spring 43 is fixedly installed between the back of the protruding end of the pressure rod 411 and the front of the mounting block 410, one end of the pressure rod 411 penetrates the oil chamber box 42 and extends to the inside of the oil chamber box 42, the first clamp 4 and the second clamp 41 are provided with symmetrically distributed semi-pressing holes 412 on the opposite surfaces, wherein four semi-pressing holes 412 are divided into two groups in pairs, and when the hydraulic connection device drives the second clamp 41 to contact the first clamp 4, two complete and symmetrical full-pressing holes are formed, and the center distance of the two full-pressing holes is completely consistent with the center distance of the supply and return pipeline of the hemodialysis centralized liquid supply three-way adapter.

[0035] The above scheme is adopted: when in use, the hydraulic switch 46 is closed, and the handle 44 is repeatedly pressed under the action of the elastic force of the spring 43 itself, driving the pressure rod 411 to continuously squeeze the hydraulic oil in the oil chamber box 42 to generate oil pressure, and the oil pressure is used to drive the lower end outer surface of the second clamp 41 to make an upward piston movement in the oil chamber box 42, driving the second clamp 41 and the lower tool head 45 to move toward the upper tool head 1, so that the distance between the first clamp 4 and the second clamp 41 is gradually reduced, and then under the action of hydraulic pressure, the silicone tube and the hemodialysis centralized fluid supply three-way adapter are hydraulically clamped and fixed by the sleeve installed at the interface of the silicone tube and the hemodialysis centralized fluid supply three-way adapter.

[0036] like Figure 1 , Figure 7 and Figure 8As shown, a heat sealing cavity 51 is provided inside the first clamp 4 and the second clamp 41, and the heat sealing connection device also includes an insulating pad 53 fixedly installed on the inner wall of the outer side of the heat sealing cavity 51. In order to prevent heat loss, the present application preferably uses an insulating pad 53 made of silicate thermal insulation material, and the carbon fiber heating tube 5 is fixedly installed on the inner bottom wall of the heat sealing cavity 51. Micro temperature sensors 52 are fixedly installed on the lower surfaces of the first clamp 4 and the second clamp 41, wherein the detection end of one micro temperature sensor 52 passes through the first clamp 4 and then extends to the inside of the heat sealing cavity 51 in the first clamp 4, and the detection end of the other micro temperature sensor 52 passes through the second clamp 41 and then extends to the inside of the heat sealing cavity 51 in the second clamp 41.

[0037] The above scheme is adopted: while the hydraulic connecting device is running, the controller 6 controls the carbon fiber heating tube 5 and the micro temperature sensor 52 to work, the carbon fiber heating tube 5 converts electrical energy into thermal energy, and transfers the heat generated by it to the inner wall of the semi-clamping hole 412 of the first clamp 4 and the second clamp 41, so as to realize the heat sealing and pressing action of the silicone tube and the hemodialysis centralized liquid supply three-way adapter.

[0038] The working principle and use process of this utility model:

[0039] Step 1: When in use, the operator holds the handle 48, pulls out the movable pin 7 located at the inner wall of the insertion hole of the upper tool head 1 and the inner wall of the insertion hole of the tool body 2, and rotates the upper tool head 1 clockwise through the provided fixed pin 3, driving the upper tool head 1 to rotate clockwise with the axis of the fixed pin 3 as the center of the circle, so that the upper tool head 1 and the tool body 2 are in an open state. At this time, turn on the liquid level switch, place the silicone tube and the hemodialysis centralized liquid supply three-way adapter between the first clamp 4 and the second clamp 41, and set a sleeve on the outer surface of the interface between the silicone tube and the hemodialysis centralized liquid supply three-way adapter, then screw back the upper tool head 1 and insert the movable pin 7 into the inner wall of the insertion hole of the upper tool head 1 and the inner wall of the insertion hole of the tool body 2;

[0040] Step 2, turn off the hydraulic switch 46, and repeatedly press the handle 44 under the action of the elastic force of the spring 43, driving the pressure rod 411 to continuously squeeze the hydraulic oil in the oil chamber box 42 to generate oil pressure, and use the oil pressure to drive the lower end outer surface of the second clamp 41 to make an upward piston movement in the oil chamber box 42, driving the second clamp 41 and the lower tool head 45 to move in the direction of the upper tool head 1, so that the distance between the first clamp 4 and the second clamp 41 is gradually reduced, and then under the action of hydraulic pressure, the silicone tube and the hemodialysis centralized liquid supply three-way adapter are hydraulically clamped and fixed by the sleeve set at the interface of the silicone tube and the hemodialysis centralized liquid supply three-way adapter;

[0041] Step 3: While the hydraulic connection device is running, the controller 6 controls the carbon fiber heating tube 5 and the micro temperature sensor 52 to work, and the carbon fiber heating tube 5 converts electrical energy into thermal energy, and transfers the heat generated by the carbon fiber heating tube to the inner wall of the semi-pressing hole 412 of the first clamp 4 and the second clamp 41, so as to realize the heat sealing and pressing action of the silicone tube and the hemodialysis centralized liquid supply three-way adapter;

[0042] Step 4: Through the cooperation of the hydraulic connection device and the heat-sealing connection device in the above steps 2 and 3, a convenient, fast, firm and reliable connection method can be provided for the silicone tube and the hemodialysis centralized liquid supply three-way adapter, while ensuring the sealing performance, providing good working conditions and treatment effects for hemodialysis treatment;

[0043] Step five, turn on the hydraulic switch 46 and reset the second clamp 41.

[0044] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A connecting device for a hemodialysis centralized fluid supply for a dialysis machine, comprising an upper tool head (1) and a tool body (2), characterized in that: The upper tool head (1) and the tool body (2) are connected via a fixing pin (3); a hydraulic connection device is provided between the upper tool head (1) and the tool body (2); and the hydraulic connection device comprises a first clamp (4), a second clamp (41), an oil chamber box (42), a spring (43) and a handle (44); and the spring (43), the oil chamber box (42) and the handle (44) cooperate with each other to drive the second clamp (41) to move in the direction of the upper tool head (1) inside the tool body (2), adjust the distance between the first clamp (4) and the second clamp (41), and realize the hydraulic fixing action of the silicone tube and the hemodialysis centralized liquid supply three-way adapter; The first clamp (4) and the second clamp (41) are both provided with heat-sealing connection devices inside, and the heat-sealing connection devices include a carbon fiber heating tube (5). When the hydraulic connection device moves, the heat generated by the carbon fiber heating tube (5) is transferred to the inner surface of the first clamp (4) and the second clamp (41), so as to realize heat-sealing and pressing of the silicone tube and the hemodialysis centralized liquid supply three-way adapter; The lower surface of the upper tool head (1) is provided with an installation component for implementing the installation action of the first clamp (4), and the right side surface of the tool body (2) is fixedly installed with a controller (6) for controlling the operation of the hydraulic connection device and the heat sealing connection device.

2. The connecting device for centralized hemodialysis liquid supply for a dialysis machine according to claim 1, characterized in that: The hydraulic connection device also includes a lower tool head (45) slidably sleeved on the inner wall of the tool body (2); the lower surface of the tool body (2) is rotatably sleeved on the upper surface of the oil chamber box (42); the lower end outer surface of the second clamp (41) is fixedly sleeved on the inner wall of the lower tool head (45); a hydraulic switch (46) is fixedly installed on the left outer surface of the oil chamber box (42); the lower end outer surface of the second clamp (41) passes through the tool body (2) and extends to the inner wall of the oil chamber box (42); the bottom end of the second clamp (41) located in the oil chamber is fixedly sleeved with a sealing ring (47); the lower end outer surface of the second clamp (41) located in the oil chamber and the outer surface of the sealing ring (47) are both slidably sleeved on the inner wall of the oil chamber box (42).

3. The connecting device for centralized hemodialysis liquid supply for a dialysis machine according to claim 2, characterized in that: A handle (48) is threadedly connected to the lower surface of the oil chamber box (42), and a connecting rod (49) and a mounting block (410) are fixedly connected to the front of the oil chamber box (42). The handle (44) is hinged to one end of the connecting rod (49) through a pin shaft, and the longitudinal section of the mounting block (410) is hexagonal in shape. A pressure rod (411) is hinged to the inner wall of the handle (44) through a pin shaft, and the spring (43) is fixedly installed between the back side of the protruding end of the pressure rod (411) and the front side of the mounting block (410), and one end of the pressure rod (411) passes through the oil chamber box (42) and extends to the interior of the oil chamber box (42).

4. The connecting device for centralized hemodialysis liquid supply for a dialysis machine according to claim 3, characterized in that: The surfaces opposite to each other of the first clamp (4) and the second clamp (41) are provided with symmetrically distributed semi-pressing holes (412), wherein four semi-pressing holes (412) are divided into two groups, and when the hydraulic connection device drives the second clamp (41) to contact the first clamp (4), two complete and symmetrical full-pressing holes are formed, and the center distance of the two full-pressing holes is completely consistent with the center distance of the supply and return pipeline of the hemodialysis centralized fluid supply three-way adapter.

5. The connecting device for centralized hemodialysis liquid supply for a dialysis machine according to claim 1, characterized in that: The first clamp (4) and the second clamp (41) are both provided with a heat sealing cavity (51) inside, the heat sealing connection device further comprises a heat insulating pad (53) fixedly mounted on the outer inner wall of the heat sealing cavity (51), the carbon fiber heating tube (5) is fixedly mounted on the inner bottom wall of the heat sealing cavity (51), and the lower surfaces of the first clamp (4) and the second clamp (41) are both fixedly mounted with a micro temperature sensor (52).

6. The connecting device for centralized hemodialysis liquid supply for a dialysis machine according to claim 5, characterized in that: The detection end of one of the micro-temperature sensors (52) passes through the first clamp (4) and then extends to the interior of the heat-sealing cavity (51) located in the first clamp (4), and the detection end of the other micro-temperature sensor (52) passes through the second clamp (41) and then extends to the interior of the heat-sealing cavity (51) located in the second clamp (41).

7. The connecting device for centralized hemodialysis liquid supply for a dialysis machine according to claim 1, characterized in that: The mounting assembly comprises a card slot (71) and a card block (72), wherein the card slot (71) is provided in a linear array on the lower surface of the upper tool head (1), and the card block (72) is fixedly mounted in a linear array on the upper surface of the first fixture (4), wherein the card block (72) and the card block (72) are both T-shaped in longitudinal section, and the inner wall of the insertion hole of the upper tool head (1) and the inner wall of the insertion hole of the tool body (2) are both plugged with a movable pin (7).

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