Full-automatic aluminum hose production device

Abstract

The invention discloses a full-automatic aluminum hose production device which comprises a guide cross bar, a traction seat and two oppositely-arranged base frames, two bearing cross bars are arranged between the two base frames and located over the guide cross bar, and the two ends of each bearing cross bar are connected with the two base frames correspondingly. A horizontal fixing plate is arranged between the two base frames and located above the bearing cross bar. The device further comprises a dynamic self-locking supporting mechanism. And a centering compression resistance detection mechanism. Through the centering compression resistance detection mechanism, by means of the gear meshing transmission mode of a U-shaped telescopic piece and a gear transmission shaft and closed-loop control of a pressure monitoring module, a first electric telescopic rod assembly and a second electric telescopic rod assembly, multiple sets of pressing blocks can be driven to synchronously contract at equal intervals in the radial direction of the aluminum hose; multi-angle uniform pressure loading on the outer wall of the pipe body is ensured, the problem that synchronous pressure resistance monitoring cannot be implemented in dynamic conveying in the prior art is solved, semi-finished products with deformation hidden dangers are effectively prevented from flowing into subsequent procedures, and the rework rate is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of aluminum hose production, and in particular to a full-automatic aluminum hose production device. BACKGROUND

[0002] The aluminum hose is a flexible packaging container formed by aluminum foil and plastic, which is made by multi-layer co-extrusion or composite process, and is usually composed of an aluminum foil substrate, an inner plastic film and an outer printing layer. The core structure utilizes the ductility of aluminum and the flexibility of plastic, and has metal barrier performance and hose extrusion characteristics, which can effectively block oxygen, light and moisture to ensure the stability of the contents. The product is widely used in the fields of cosmetics, pharmaceuticals, food and industrial products, and is especially suitable for sealing packaging of paste, cream or viscous substances. The aluminum hose is light and durable, light-proof and oxidation-resistant, and has excellent sealing performance. It has strong plasticity and can be formed into different pipe diameters and shapes through precise molds to meet various packaging requirements. The surface printing layer can realize high-precision graphic display, and the metal texture of aluminum improves the product grade. As an environmentally friendly packaging material, the aluminum hose can be recycled and reused, which meets the development trend of green packaging.

[0003] The traditional large-size aluminum hose manufacturing process usually adopts an automatic assembly line system to realize the continuous transformation of metal plates into tubular containers. Its standardized process covers key procedures such as aluminum strip unwinding and flattening, progressive stamping forming, inner wall corrosion-resistant coating spraying, fixed-length cutting and end sealing and shoulder injection. In terms of production equipment configuration, although the existing technical solution realizes the process connection of each processing unit through integrated production line, it only configures a static positioning detection station to perform compression resistance test in the product transfer link, and has not established an online detection mechanism matched with the dynamic conveying system. This technical limitation leads to the fact that the tubular body cannot be monitored for compression resistance during continuous conveying, and the semi-finished products with deformation risks may directly enter the subsequent sealing or packaging process, increasing the production capacity loss caused by rework. Therefore, a full-automatic aluminum hose production device is provided. SUMMARY

[0004] In order to overcome the shortcomings of the prior art, the present application provides a full-automatic aluminum hose production device.

[0005] In order to solve the above technical problems, the basic technical scheme of the present application is as follows: The utility model provides an automatic aluminum hose production device, including guide crossbar, traction seat and two opposite setting base, guide crossbar is located between two base, and the both ends of guide crossbar are connected with two base respectively, and traction seat is located in the middle part of guide crossbar, two the base between and located guide crossbar just above is provided with two bearing crossbar, and the both ends of bearing crossbar are connected with two base respectively, two the base between and located bearing crossbar above is provided with horizontal fixed plate, and the both ends of horizontal fixed plate are connected with two base respectively, still include: Dynamic self locking support mechanism is used for connecting guide crossbar and two bearing crossbars with matched traction seat, the dynamic self locking support mechanism includes a plurality of and equal interval distribution self locking assembly, and trigger assembly is used for driving each self locking assembly; Centering compression detection mechanism is used for uniformly pressing the outer wall of aluminum hose, the centering compression detection mechanism includes aluminum hose sleeve setting just below the traction seat, first electric telescopic rod assembly setting in one end of aluminum hose sleeve and second electric telescopic rod assembly setting in the other end of aluminum hose sleeve.

[0006] Preferably, the self locking assembly includes a vertical rod arranged inside the horizontal fixed plate, a locking seat fixedly installed on the upper surface of the guide crossbar and corresponding to the vertical rod, the locking seat is designed in a semicircular structure, the bottom end of the vertical rod extends to the position of the locking seat through each bearing crossbar in sequence, and the vertical rod is relatively rotatable with the bearing crossbar, a locking groove is formed in the inside of the locking seat, a locking block is fixedly installed on the middle part of the bottom end of the vertical rod and located at the position of the locking groove, and the cross section of the locking block is designed in a T-shaped structure.

[0007] Preferably, a volute spring is wound on the outer surface of the vertical rod and located at the position of the horizontal fixed plate, the vertical rod and the horizontal fixed plate are elastically arranged through the volute spring, a plurality of positioning rings are fixedly installed on the outer surface of the vertical rod and arranged at equal intervals, and a drive gear is fixedly installed on the middle part of the outer surface of the vertical rod.

[0008] Preferably, the trigger assembly includes an adapter rod fixedly installed on the top of the traction seat, a transverse toothed plate is fixedly installed on the middle part of the top end of the adapter rod and located at the position of the drive gear, and the transverse toothed plate is meshingly arranged with the drive gear.

[0009] Preferably, the traction seat and the guide crossbar are slidingly arranged through pulleys, the outer end of one of the pulleys is connected and assembled with the output end of an external driving member through a speed reducer, a barrel shaft is rotatably installed in the inside of the traction seat, two winding drums are fixedly installed on the both sides of the outer surface of the barrel shaft respectively, the outer end of the barrel shaft is connected and assembled with the output end of the external driving member through the speed reducer, a lifting rope is wound on the outer surface of the winding drum, and a safety hook is arranged at the bottom end of the lifting rope.

[0010] Preferably, the rear end inner wall of the aluminum hose sleeve is rotatably installed with a driving gear ring through a bearing, the driving gear ring is coaxial with the aluminum hose sleeve, the inner wall of the aluminum hose sleeve is slidably installed with U-shaped telescopic pieces in a ring shape at equal intervals, the top end of one group of the U-shaped telescopic pieces is connected and assembled with the movable end of the first electric telescopic rod assembly, and the top end of another group of the U-shaped telescopic pieces is connected and assembled with the movable end of the second electric telescopic rod assembly.

[0011] Preferably, the middle part of the two sides of the U-shaped telescopic piece is provided with a vertical gear plate, the vertical gear plate is fixedly connected with the U-shaped telescopic piece, the outer wall of the aluminum hose sleeve is rotatably installed with a gear transmission shaft at the position of the U-shaped telescopic piece through a bearing, the outer surface of the gear transmission shaft is fixedly provided with gear plate transmission gears on both sides, the gear plate transmission gears are meshed with the vertical gear plates, and the outer surface of the gear transmission shaft is fixedly installed with a gear ring transmission gear at the position of the driving gear ring, and the gear ring transmission gear is meshed with the driving gear ring.

[0012] Preferably, the middle part of the bottom end of the U-shaped telescopic piece is detachably installed with a shell, the shell is provided in an inverted U-shaped structure, a pressing block is arranged on the inner surface of the shell, the bottom of the pressing block is designed in an arc-shaped structure, a pressure monitoring module is installed on the top of the pressing block, a pressing roller is installed in the pressing block, the pressure monitoring module is located in the shell, the pressing block is slidably connected with the shell, sliding blocks are arranged on both sides of the pressing block, and a sliding groove is formed through the outer surface of the shell at the position of the sliding block.

[0013] The beneficial effects of the present application are: By setting the centering and pressure resisting detection mechanism, using the gear meshing transmission mode of the U-shaped telescopic piece and the gear transmission shaft, and using the closed loop control of the pressure monitoring module, the first electric telescopic rod assembly and the second electric telescopic rod assembly, a plurality of pressing blocks can be driven to contract synchronously and equidistantly along the aluminum hose, ensuring that the outer wall of the pipe body is subjected to multi-angle uniform pressure loading, solving the problem that the prior art cannot implement synchronous pressure resisting monitoring in dynamic conveying, effectively avoiding the inflow of semi-finished products with deformation risks into subsequent processes, and reducing the rework rate. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present application; Figure 2 It is a schematic diagram of the base structure of the present application; Figure 3 It is a schematic diagram of the horizontal fixing plate structure of the present application; Figure 4 It is a schematic diagram of the dynamic self-locking support mechanism structure of the present application Figure 1 ; Figure 5 It is a schematic diagram of the dynamic self-locking support mechanism structure of the present applicationFigure 2 ; Figure 6 is a local structural exploded view of the present application; Figure 7 is a schematic view of the internal structure of the towing seat of the present application; Figure 8 is a schematic view of the centering and pressure resisting detection mechanism structure of the present application Figure 1 ; Figure 9 is a schematic view of the centering and pressure resisting detection mechanism structure of the present application Figure 2 Figure 10 is a schematic view of the pressing block structure of the present application.

[0015] BRIEF DESCRIPTION OF THE DRAWINGS 100, base frame; 200, towing seat; 201, pulley; 202, winding drum; 203, drum shaft; 204, lifting rope; 205, safety hook; 300, guide crossbar; 400, load bearing crossbar; 500, horizontal fixed plate; 600, dynamic self-locking support mechanism; 601, vertical rod; 602, volute spring; 603, locking seat; 604, adapter rod; 605, transverse toothed plate; 606, driving gear; 607, positioning ring; 608, locking block; 609, locking groove; 700, centering and pressure resisting detection mechanism; 701, U-shaped telescopic member; 702, gear transmission shaft; 703, toothed plate transmission gear; 704, aluminum hose sleeve; 705, driving gear ring; 706, casing; 707, gear ring transmission gear; 708, vertical toothed plate; 709, sliding groove; 710, sliding block; 711, pressing block; 712, pressure monitoring module; 713, first electric telescopic rod assembly; 714, second electric telescopic rod assembly; 715, pressing roller. DETAILED DESCRIPTION

[0016] The specific embodiments of the present application will be described below with reference to the accompanying drawings. Figure 1 to the accompanying drawings. Figure 10 The technical solutions in the embodiments of the present application are described clearly and completely. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0017] The application provides a technical scheme: a full-automatic aluminum hose production device, comprising a guide crossbar 300, a traction seat 200 and two oppositely arranged base frames 100, the guide crossbar 300 is located between the two base frames 100, and the two ends of the guide crossbar 300 are connected with the two base frames 100 respectively, the traction seat 200 is located in the middle of the guide crossbar 300, the cross section of the guide crossbar 300 is designed in an I-shaped structure, in the device, two bearing crossbars 400 are arranged between the two base frames 100 and directly above the guide crossbar 300, the cross section of the bearing crossbar 400 is designed in an I-shaped structure, the two ends of the bearing crossbar 400 are connected with the two base frames 100 respectively, the two bearing crossbars 400 are the same in structure, a horizontal fixed plate 500 is arranged between the two base frames 100 and above the bearing crossbar 400, the two ends of the horizontal fixed plate 500 are connected with the two base frames 100 respectively, and the device further comprises: a dynamic self-locking support mechanism 600, which is used for connecting the guide crossbar 300 and the two bearing crossbars 400 in cooperation with the traction seat 200 arranged, so as to support the aluminum hose together with the two bearing crossbars 400 and the guide crossbar 300, wherein the dynamic self-locking support mechanism 600 comprises a plurality of self-locking assemblies which are distributed at equal intervals, and a trigger assembly which is used for driving each self-locking assembly; and a centering and pressure-resistant detection mechanism 700, which is used for uniformly pressing the outer wall of the aluminum hose.

[0018] Specifically, the self-locking assembly comprises a vertical rod 601 arranged inside the horizontal fixing plate 500, and a locking seat 603 fixedly installed on the upper surface of the guide cross rod 300 and corresponding to the position of the vertical rod 601. The locking seat 603 is designed in a semicircular structure. The bottom end of the vertical rod 601 extends to the position of the locking seat 603 through the bearing cross rods 400 in sequence. The vertical rod 601 rotates relative to the bearing cross rod 400. The locking seat 603 is internally provided with a locking groove 609. The middle part of the bottom end of the vertical rod 601 is fixedly installed with a locking block 608 at the position of the locking groove 609. The locking block 608 is designed in a T-shaped structure in cross section. The locking groove 609 is matched with the shape of the locking block 608 in specification and can accommodate the locking block 608 rotating half a circle. The outer surface of the vertical rod 601 is wound with a volute spring 602 at the position of the horizontal fixing plate 500, for resetting the arranged vertical rod 601. The vertical rod 601 and the horizontal fixing plate 500 are elastically arranged through the volute spring 602. The outer surface of the vertical rod 601 is fixedly installed with a driving gear 606, for driving the arranged vertical rod 601 to rotate synchronously. The outer surface of the vertical rod 601 is fixedly installed with a plurality of positioning rings 607 distributed at equal intervals, for positioning and supporting the arranged vertical rod 601. The trigger assembly comprises a connecting rod 604 fixedly installed on the top of the traction seat 200. The middle part of the top end of the connecting rod 604 is fixedly installed with a transverse tooth plate 605 at the position of the driving gear 606, for driving the arranged driving gear 606, so that the vertical rod 601 drives the locking block 608 to be accommodated into the locking groove 609, and the locking block 608 is butted against the locking seat 603. The transverse tooth plate 605 is meshed with the driving gear 606.

[0019] Specifically, the traction seat 200 and the guide cross rod 300 are slidingly arranged through the pulleys 201. The outer end of one of the pulleys 201 is connected and assembled with the output end of the external driving member through a speed reducer. The traction seat 200 is rotatably installed with a cylinder shaft 203 inside. Two winding drums 202 are fixedly installed on the both sides of the outer surface of the cylinder shaft 203. The outer end of the cylinder shaft 203 is connected and assembled with the output end of the external driving member through a speed reducer. The outer surface of the winding drum 202 is wound with a lifting rope 204. The bottom end of the lifting rope 204 is provided with a safety hook 205. The above-mentioned driving members are all three-phase asynchronous motors.

[0020] Specific, the centering and compression detection mechanism 700 includes an aluminum hose sleeve 704 arranged directly below the traction seat 200, a first electric telescopic rod assembly 713 arranged at one end of the aluminum hose sleeve 704, and a second electric telescopic rod assembly 714 arranged at the other end of the aluminum hose sleeve 704. The rear end inner wall of the aluminum hose sleeve 704 is rotatably installed with a drive gear ring 705 through a bearing, and the drive gear ring 705 is coaxial with the aluminum hose sleeve 704. The inner wall of the aluminum hose sleeve 704 is annularly and equidistantly slidably installed with U-shaped telescopic pieces 701 for clamping the aluminum hose in cooperation with the first electric telescopic rod assembly 713 and the second electric telescopic rod assembly 714. The top end of one set of U-shaped telescopic pieces 701 is connected and assembled with the movable end of the first electric telescopic rod assembly 713, and the top end of the other set of U-shaped telescopic pieces 701 is connected and assembled with the movable end of the second electric telescopic rod assembly 714. The middle part of the two sides of the U-shaped telescopic piece 701 is provided with a vertical tooth plate 708, and the vertical tooth plate 708 is fixedly connected with the U-shaped telescopic piece 701. The outer wall of the aluminum hose sleeve 704 at the position of the U-shaped telescopic piece 701 is rotatably installed with a gear transmission shaft 702 through a bearing, and the outer surface of the gear transmission shaft 702 is fixedly provided with tooth plate transmission gears 703 on both sides for driving the U-shaped telescopic piece 701 in cooperation with the vertical tooth plate 708. The tooth plate transmission gears 703 are meshingly arranged with the vertical tooth plate 708. The outer surface of the gear transmission shaft 702 is fixedly installed with a gear ring transmission gear 707 at the position of the drive gear ring 705 for driving the gear transmission shaft 702 in cooperation with the drive gear ring 705. The gear ring transmission gear 707 is meshingly arranged with the drive gear ring 705.

[0021] Specifically, the middle part of the bottom end of the U-shaped telescopic piece 701 is detachably installed with a sleeve 706, the sleeve 706 is arranged in an inverted U-shaped structure, and a pressing block 711 is arranged on the inner surface of the sleeve 706 for pressing the aluminum hose. The bottom of the pressing block 711 is designed in an arc-shaped structure, and a pressure monitoring module 712 is installed on the top of the pressing block 711 for detecting the pressure during pressing. The pressure monitoring module 712 is located inside the sleeve 706, the pressing block 711 is slidably connected with the sleeve 706, and the two sides of the pressing block 711 are provided with sliding blocks 710. The outer surface of the sleeve 706 is provided with a sliding groove 709 at the position of the sliding block 710 for limiting the sliding block 711 during sliding. A pressing roller 715 is installed in the pressing block 711, and the pressing roller 715 is parallel to the aluminum hose. Since the force point of the clamped aluminum hose is limited, and the clamping point is affected by gravity and will deform, the pressing roller 715 installed in the pressing block 711 is used to facilitate the staff to turn over the aluminum hose during hoisting and transportation, so as to ensure that the aluminum hose can be tested for compression resistance during dynamic movement, and the result of the aluminum hose pressure monitoring is ensured.

[0022] According to the above, by setting the centering and compression detection mechanism 700, in use, the U-shaped telescopic part 701 is engaged with the gear transmission shaft 702 in a gear meshing transmission mode, and the closed-loop control of the pressure monitoring module 712, the first electric telescopic rod assembly 713 and the second electric telescopic rod assembly 714, a plurality of pressing blocks 711 are driven to contract synchronously and equidistantly along the aluminum hose in the radial direction, ensuring uniform pressure loading on the outer wall of the pipe body at multiple angles, solving the problem that the prior art cannot implement synchronous compression monitoring in dynamic conveying, effectively avoiding the inflow of semi-finished products with deformation risks into subsequent processes, and reducing the rework rate; the dynamic self-locking support mechanism 600 is set, in use, when the traction seat 200 moves, the trigger assembly drives the vertical rod 601 to rotate, and the linkage design of the volute spring 602 and the drive gear 606 is used to realize the synchronous opening and closing of the lock block 608 and the locking seat 603 with the displacement of the traction seat 200, so that the lock block 608 and the locking seat 603 form a mechanical self-locking structure, ensuring that the aluminum hose obtains stable dynamic support during continuous conveying; the pulley 201 sliding connection structure of the traction seat 200 and the guide crossbar 300, the cylinder shaft 203 drives the drum 202 to wind and unwind the lifting rope 204, so that the safety hook 205 and the aluminum hose form a flexible suspension connection, ensuring that the pipe body maintains a horizontal posture during dynamic detection.

[0023] According to the disclosure and teaching of the above specification, those skilled in the art can also make changes and modifications to the above embodiments. Therefore, the present application is not limited to the specific embodiments disclosed and described above, and some modifications and changes of the present application should fall within the protection scope of the claims of the present application. In addition, although some specific terms are used in the specification, these terms are only for convenience of description and do not constitute any limitation on the present application.

Claims

1. A fully automatic aluminum hose production device, comprising a guide crossbar (300), a traction seat (200), and two opposing base frames (100), characterized in that, The guide crossbar (300) is located between two base frames (100), and both ends of the guide crossbar (300) are connected to the two base frames (100) respectively. The traction seat (200) is located in the middle of the guide crossbar (300). Two bearing crossbars (400) are arranged between the two base frames (100) and directly above the guide crossbar (300), and both ends of the bearing crossbars (400) are connected to the two base frames (100) respectively. A horizontal fixing plate (500) is arranged between the two base frames (100) and above the bearing crossbars (400), and both ends of the horizontal fixing plate (500) are connected to the two base frames (100) respectively. The system also includes: A dynamic self-locking support mechanism (600) is used to connect the guide crossbar (300) and two load-bearing crossbars (400) in conjunction with the traction seat (200). The dynamic self-locking support mechanism (600) includes multiple self-locking components that are evenly distributed, and a triggering component for driving each self-locking component. The centering and pressure testing mechanism (700) is used to uniformly press the outer wall of the aluminum hose. The centering and pressure testing mechanism (700) includes an aluminum hose sleeve (704) located directly below the traction seat (200), a first electric telescopic rod assembly (713) located at one end of the aluminum hose sleeve (704), and a second electric telescopic rod assembly (714) located at the other end of the aluminum hose sleeve (704).

2. The fully automatic aluminum hose production device according to claim 1, characterized in that: The self-locking assembly includes a vertical rod (601) disposed inside the horizontal fixed plate (500) and a locking seat (603) fixedly installed on the upper surface of the guide crossbar (300) and corresponding to the position of the vertical rod (601). The locking seat (603) has a semi-circular structure design. The bottom end of the vertical rod (601) passes through each of the bearing crossbars (400) and extends to the position of the locking seat (603). The vertical rod (601) and the bearing crossbar (400) rotate relative to each other. The locking seat (603) has a locking groove (609) inside. A locking block (608) is fixedly installed in the middle of the bottom end of the vertical rod (601) and located in the locking groove (609). The cross-section of the locking block (608) has a T-shaped structure design.

3. The fully automatic aluminum hose production device according to claim 2, characterized in that: A spiral spring (602) is wound around the outer surface of the upright (601) and at the position of the horizontal fixing plate (500). The upright (601) and the horizontal fixing plate (500) are elastically set by the spiral spring (602). Multiple positioning rings (607) are fixedly installed on the outer surface of the upright (601) and are distributed at equal intervals. A drive gear (606) is fixedly installed in the middle of the outer surface of the upright (601).

4. The fully automatic aluminum hose production device according to claim 1, characterized in that: The triggering assembly includes an adapter rod (604) fixedly installed on the top of the traction seat (200). A transverse toothed plate (605) is fixedly installed at the middle of the top of the adapter rod (604) and at the position of the drive gear (606). The transverse toothed plate (605) is meshed with the drive gear (606).

5. The fully automatic aluminum hose production device according to claim 1, characterized in that: The traction seat (200) and the guide crossbar (300) are slidably arranged by pulleys (201), and the outer end of one of the pulleys (201) is connected to the output end of the external drive component through a reducer. A cylindrical shaft (203) is rotatably installed inside the traction seat (200), and two drums (202) are fixedly installed on both sides of the outer surface of the cylindrical shaft (203). The outer end of the cylindrical shaft (203) is connected to the output end of the external drive component through a reducer. A lifting rope (204) is wound around the outer surface of the drum (202), and a safety hook (205) is provided at the bottom end of the lifting rope (204).

6. The fully automatic aluminum hose production device according to claim 1, characterized in that: The inner wall of the rear end of the aluminum flexible sleeve (704) is rotatably mounted with a drive gear ring (705) via a bearing, and the drive gear ring (705) is coaxial with the aluminum flexible sleeve (704). The inner wall of the aluminum flexible sleeve (704) is slidably mounted with U-shaped telescopic members (701) at equal intervals in an annular shape. The top end of one set of the U-shaped telescopic members (701) is connected and assembled with the movable end of the first electric telescopic rod assembly (713), and the top end of the other set of the U-shaped telescopic members (701) is connected and assembled with the movable end of the second electric telescopic rod assembly (714).

7. The fully automatic aluminum hose production device according to claim 6, characterized in that: Vertical toothed plates (708) are provided on both sides of the U-shaped telescopic member (701), and the vertical toothed plates (708) are fixedly connected to the U-shaped telescopic member (701). The outer wall of the aluminum flexible sleeve (704) is located at the position of the U-shaped telescopic member (701) and a gear drive shaft (702) is rotatably installed on it through a bearing. Both sides of the outer surface of the gear drive shaft (702) are fixedly provided with toothed plate drive gears (703), and the toothed plate drive gears (703) are meshed with the vertical toothed plates (708). The outer surface of the gear drive shaft (702) is located at the position of the drive gear ring (705) and a gear ring drive gear (707) is fixedly installed on it, and the gear ring drive gear (707) is meshed with the drive gear ring (705).

8. The fully automatic aluminum hose production device according to claim 7, characterized in that: A housing (706) is detachably installed at the middle of the bottom end of the U-shaped telescopic component (701). The housing (706) is in the shape of an inverted U-shape, and a pressing block (711) is provided on the inner surface of the housing (706). The bottom of the pressing block (711) is designed with an arc shape, and a pressure monitoring module (712) is installed on the top of the pressing block (711). A pressing roller (715) is installed inside the pressing block (711). The pressure monitoring module (712) is located inside the housing (706). The pressing block (711) is slidably connected to the housing (706), and sliders (710) are provided on both sides of the pressing block (711). A groove (709) is provided through the outer surface of the housing (706) at the position of the slider (710).

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