Pipe fitting bending device

Abstract

A pipe fitting bending device is used for solving the problems that in the actual use process of some pipe fitting bending devices mentioned in the background technology, a pipe fitting is bent in a U shape through extrusion of an extrusion wheel, then parallel bending of double ends of the pipe fitting cannot be achieved through the bending, and practicability is poor; and only one pipe fitting can be bent each time, and the efficiency is low. Comprising a mounting base, the mounting base is provided with a rotating first fan-shaped disc and a rotating second fan-shaped disc, and the cambered surface of the first fan-shaped disc and the cambered surface of the second fan-shaped disc are each provided with two containing grooves; a rotating first mounting block is arranged on the mounting seat, a first supporting block is arranged on the first mounting block, a first clamping block is arranged on the first supporting block, and a first restoring piece is arranged between the first clamping block and the first supporting block; and a rotating second mounting block is arranged on the mounting base, a second supporting block is arranged on the second mounting block, a second clamping block is arranged on the second supporting block, and a second restoring piece is arranged between the second clamping block and the second supporting block.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe fitting processing, in particular to a pipe fitting bending device. Background Art

[0002] At present, traditional massage chairs on the market usually include a base, a seat frame is movably arranged on the base, and a main pipe fitting, a backrest frame and a calf frame are respectively connected to the seat frame. Usually, the main pipe fitting is in a multi-segment bent state, so the main pipe fitting needs to be bent.

[0003] The prior art, such as the utility model patent document with the authorization announcement number of "CN220970463U" and the patent name of "A Pipe Fitting Bending Device", discloses a pipe fitting bending device. The pipe fitting bending device includes an equipment frame, a processing groove is opened on the front side of the equipment frame, a pair of mounting seats are slidably connected to the bottom of the processing groove, a support wheel is mounted on the upper end of the mounting seat, a hydraulic cylinder is fixed at the middle position of the top of the processing groove, the output end of the hydraulic cylinder is located in the processing groove and is fixed with a lifting block, a pair of fixing frames are fixed to the bottom of the lifting block, a conversion frame is rotatably connected between the fixing frames, a fixing component is arranged between the conversion frame and the fixing frames, and two extrusion wheels with different sizes are mounted between the conversion frames.

[0004] In the actual use process of the above patent, the pipe fitting is bent into a "U" shape by the extrusion of the extrusion wheel, and then this kind of bending cannot realize the parallel bending of the two ends of the pipe fitting, so the practicability is poor; and the device can only bend one pipe fitting at a time, with low efficiency. Summary of the Utility Model

[0005] Aiming at the deficiencies in the prior art, the utility model provides a pipe fitting bending device, which is used to solve the technical problems that in the actual use process of some pipe fitting bending devices mentioned in the background art, the pipe fitting is bent into a "U" shape by the extrusion of the extrusion wheel, and then this kind of bending cannot realize the parallel bending of the two ends of the pipe fitting, so the practicability is poor; and the device can only bend one pipe fitting at a time, with low efficiency.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions:

[0007] A pipe fitting bending device includes a mounting base. A rotating first sector disk and a rotating second sector disk are provided on the mounting base. Two placement grooves are formed on the arc surfaces of both the first sector disk and the second sector disk. A rotating first mounting block is provided on the mounting base. A first support block that slides along the length direction of the first mounting block is provided on the first mounting block. A first clamping block that slides along the length direction of the first support block is provided on the first support block. The first clamping block is arranged below the first sector disk. A first restoring element is provided between the first clamping block and the first support block. A rotating second mounting block is provided on the mounting base. A second support block that slides along the length direction of the second mounting block is provided on the second mounting block. A second clamping block that slides along the length direction of the second support block is provided on the second support block. The second clamping block is arranged above the second sector disk. A second restoring element is provided between the second clamping block and the second support block. Two clamping grooves are formed on both the first clamping block and the second clamping block for clamping pipe fittings.

[0008] Working principle:

[0009] In the initial state, the arc surface of the first sector disk faces downward, and the arc surface of the second sector disk faces upward; the first mounting block and the second mounting block are both vertically placed; the length directions of the first support block and the second support block are perpendicular to the length directions of the first mounting block and the second mounting block respectively.

[0010] When in use, take two pipe fittings and horizontally insert them between the placement grooves in the first sector disk and the second sector disk. Drive the first clamping block to move vertically upward. The two clamping grooves on the first clamping block come into contact with the bottom side of the pipe fitting. Drive the second clamping block to move vertically downward. The two clamping grooves on the second clamping block come into contact with the top side of the pipe fitting.

[0011] Then start the device. The first mounting block and the second mounting block rotate counterclockwise. During this process, the rotation of the first mounting block and the second mounting block drives the first support block, the first clamping block, the second support block, and the second clamping block to rotate. Thus, the two rod segments of the pipe fitting are bent along the arc surfaces of the first sector disk and the second sector disk. And due to the bending of the pipe fitting, the interaction force between the pipe fitting and the first clamping block and the second clamping block causes the first clamping block to move downward along the length direction of the first support block, and the second clamping block to slide upward along the length direction of the second support block.

[0012] After completion, rotate the first mounting block and the second mounting block clockwise. At this time, under the action of the first restoring element and the second restoring element, the first restoring element drives the first clamping block to return to the initial state, and the second restoring element drives the second clamping block to return to the initial state, thereby facilitating the bending work of the next batch of pipe fittings.

[0013] Finally, rotate the first sector disk and the second sector disk clockwise, and then remove the bent pipe fitting.

[0014] Beneficial effects:

[0015] In this solution, by setting the first sector disk, the first mounting block, the first support block, the first clamping block, the clamping groove, the second sector disk, the second mounting block, the second support block, and the second clamping block, starting the device, the rotation of the first mounting block and the second mounting block drives the first clamping block and the second clamping block respectively to push and bend the two rod segments of the pipe fitting along the arc surfaces of the first sector disk and the second sector disk, so as to realize the parallel bending of the two ends of the pipe fitting and improve the practicability;

[0016] By respectively arranging two placement grooves on the side walls of the first sector disk and the second sector disk, and arranging two clamping grooves on the first clamping block and the second clamping block, it can not only support the pipe fitting, but also support the bending work of two pipe fittings at the same time, improving the work efficiency. Description of the drawings

[0017] Figure 1 It is a schematic structural diagram of the initial state for placing the pipe fitting;

[0018] Figure 2 It is a schematic structural diagram after bending the pipe fitting;

[0019] Figure 3 It is a schematic structural diagram when taking out the pipe fitting after bending the pipe fitting;

[0020] Figure 4 For Figure 1 It is an assembly schematic diagram of the mounting seat, the first motor, the second motor, the first sector disk, the second sector disk, the first mounting block, and the second mounting block in a top view;

[0021] Figure 5 For Figure 1 It is an assembly schematic diagram of the first support block, the first clamping block, the oil pressure buffer, the infrared sensor, and the second fixed block in.

[0022] In the above drawings: the first sector disk 1, the second sector disk 2, the placement groove 3, the mounting seat 4, the first mounting block 5, the first electric slider 6, the first clamping block 7, the clamping groove 8, the second mounting block 9, the second electric slider 10, the second clamping block 11, the first motor 13, the first transmission shaft 14, the first sprocket 15, the first chain 16, the second motor 17, the second transmission shaft 18, the third sprocket 19, the third transmission shaft 20, the second sprocket 21, the second chain 22, the first electric slide rail 23, the second electric slide rail 24, the first support block 25, the first chute 26, the first auxiliary block 27, the first auxiliary plate 28, the first spring 29, the second support block 30, the second chute 31, the second auxiliary block 32, the second auxiliary plate 33, the second spring 34, the push block 35, the oil pressure buffer 36, the trigger block 37, the infrared sensor 38, the second fixed block 39, the first fixed block 40, the third fixed block 41. Detailed implementation manners

[0023] The technical solutions in the present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0024] Embodiment:

[0025] As Figures 1 to 3 shown, a pipe fitting bending device includes a mounting base 4. A rotating first sector plate 1 and a rotating second sector plate 2 are provided on the mounting base 4. Two placing grooves 3 are formed on the arc surfaces of both the first sector plate 1 and the second sector plate 2. A rotating first mounting block 5 is provided on the mounting base 4. A first support block 25 that slides along the length direction of the first mounting block 5 is provided on the first mounting block 5. A first clamping block 7 that slides along the length direction of the first support block 25 is provided on the first support block 25. The first clamping block 7 is arranged below the first sector plate 1. A first restoring element is provided between the first clamping block 7 and the first support block 25. A rotating second mounting block 9 is provided on the mounting base 4. A second support block 30 that slides along the length direction of the second mounting block 9 is provided on the second mounting block 9. A second clamping block 11 that slides along the length direction of the second support block 30 is provided on the second support block 30. The second clamping block 11 is arranged above the second sector plate 2. A second restoring element is provided between the second clamping block 11 and the second support block 30. Two clamping grooves 8 are formed on both the first clamping block 7 and the second clamping block 11 for clamping the pipe fitting.

[0026] In this solution, by setting the first sector plate 1, the first mounting block 5, the first support block 25, the first clamping block 7, the clamping groove 8, the second sector plate 2, the second mounting block 9, the second support block 30, and the second clamping block 11, when the device is started, the rotation of the first mounting block 5 and the second mounting block 9 respectively drives the first clamping block 7 and the second clamping block 11 to push and bend the two rod segments of the pipe fitting along the arc surfaces of the first sector plate 1 and the second sector plate 2, so as to realize the parallel bending of the two ends of the pipe fitting and improve the practicability.

[0027] By respectively arranging two placing grooves 3 on the side walls of the first sector plate 1 and the second sector plate 2 and arranging two clamping grooves 8 on the first clamping block 7 and the second clamping block 11, the pipe fitting can be supported and the bending work of two pipe fittings can be supported simultaneously, improving the work efficiency.

[0028] As Figure 4As shown, a first motor 13 is fixedly installed on the mounting base 4. A first transmission shaft 14 is fixedly inserted through both the first sector plate 1 and the second sector plate 2, and a first sprocket 15 is fixedly sleeved on each of the two first transmission shafts 14. The output end of the first motor 13 is connected to one of the first transmission shafts 14, and the other first transmission shaft 14 is rotatably connected to the mounting base 4. A first chain 16 is meshed between the two first sprockets 15. Starting the first motor 13 drives the first sector plate 1 and the second sector plate 2 to rotate simultaneously. This specific operation method is mechanized and automated, facilitating operation; at the same time, it ensures the simultaneous rotation of the first sector plate 1 and the second sector plate 2; and it also saves resources.

[0029] As Figure 4 As shown, a second motor 17 is fixedly installed on the mounting base 4. The output end of the second motor 17 is connected to a second transmission shaft 18, and a third sprocket 19 is fixedly sleeved on the second transmission shaft 18. A third transmission shaft 20 is fixedly inserted through both the first mounting block 5 and the second mounting block 9. Both of the two third transmission shafts 20 are hollow cylinders and respectively pass through the two first transmission shafts 14. Two connecting plates are fixedly installed on the mounting base 4. One of the connecting plates is located at the lower part of the mounting base 4 and is fixedly connected to the first fixing block 40 which is rotatably sleeved on the outer periphery of the third transmission shaft 20 connected to the second mounting block 9. The other connecting plate is located at the upper part of the mounting base 4 and is also fixedly connected to the first fixing block 40 which is rotatably sleeved on the outer periphery of the third transmission shaft 20 connected to the first mounting block 5. The settings of the two connecting plates and the two first fixing blocks 40 support the two third transmission shafts 20. A second sprocket 21 is fixedly sleeved on each of the two third transmission shafts 20. A second chain 22 is meshed between the third sprocket 19 and the two second sprockets 21. Starting the second motor 17 drives the first mounting block 5 and the second mounting block 9 to rotate simultaneously. This specific operation method is mechanized and automated, facilitating operation; at the same time, it ensures the simultaneous rotation of the first mounting block 5 and the second mounting block 9. Therefore, the rotation angles of the first mounting block 5 and the second mounting block 9 are the same, thereby driving the corresponding first clamping block 7 and second clamping block 11 to push and bend the two rod segments of the pipe along the arc surfaces of the first sector plate 1 and the second sector plate 2, so as to realize the parallel bending of the two ends of the pipe; and it also saves resources.

[0030] As Figures 1 to 3As shown, a first electric slide rail 23 is fixedly installed on the first mounting block 5. A first electric slider 6 is slidably arranged in the first electric slide rail 23, and the first support block 25 is fixedly connected to the first electric slider 6. A second electric slide rail 24 is fixedly installed on the second mounting block 9. A second electric slider 10 is slidably arranged in the second electric slide rail 24, and the second support block 30 is fixedly connected to the second electric slider 10. The first electric slider 6 and the second electric slider 10 drive the first clamping block 7 and the second clamping block 11 to slide along the first electric slide rail 23 and the second electric slide rail 24 respectively, so as to clamp and bend the pipe fitting; or move away from the pipe fitting to facilitate the pipe fitting to disengage from the device.

[0031] As Figures 1 to 3 shown, a first chute 26 is formed on the first support block 25, and the first clamping block 7 is slidably arranged in the first chute 26. A first auxiliary block 27 is fixedly arranged at one end of the first clamping block 7 facing the second sector plate 2. A first auxiliary plate 28 with a length direction consistent with that of the first support block 25 is fixedly arranged on the side wall of the first support block 25. The first restoring element is a first spring 29, and the first spring 29 is arranged between the first auxiliary block 27 and the end of the first auxiliary plate 28 far from the first auxiliary block 27. A second chute 31 is formed on the second support block 30, and the second clamping block 11 is slidably arranged in the second chute 31. A second auxiliary block 32 is fixedly arranged at one end of the second clamping block 11 facing the first sector plate 1. A second auxiliary plate 33 with a length direction consistent with that of the second support block 30 is fixedly arranged on the side wall of the second support block 30. The second restoring element is a second spring 34, and the second spring 34 is arranged between the second auxiliary block 32 and the end of the second auxiliary plate 33 far from the second auxiliary block 32.

[0032] Due to the bending of the pipe fitting, the interaction force between the pipe fitting and the first clamping block 7 and the second clamping block 11 causes the first clamping block 7 to move downward along the length direction of the first support block 25, and the second clamping block 11 to slide upward along the length direction of the second support block 30. When the bending of the pipe fitting is completed, the first clamping block 7 and the second clamping block 11 need to return to the initial state (as Figure 1 ), so the first spring 29 and the second spring 34 are provided. The first spring 29 and the second spring 34 respectively pull the first clamping block 7 and the second clamping block 11 back to the initial state (as Figure 1 ), so as to facilitate the bending of the next batch of pipe fittings.

[0033] As Figures 1 to 3 and Figure 5As shown, a second fixing block 39 is fixedly arranged on the first auxiliary plate 28, and a hollow third fixing block 41 perpendicular to the second fixing block 39 is fixedly arranged on the second fixing block 39. A through groove along the length direction of the third fixing block 41 is formed in the top surface of the third fixing block 41. A pushing block 35 is slidably arranged in the clamping groove 8 arranged on the first clamping block 7. An oil pressure buffer 36 is fixedly arranged on one side of the pushing block 35. The telescopic end of the oil pressure buffer 36 is fixedly provided with a trigger block 37. The telescopic end of the oil pressure buffer 36 is slidably arranged in the third fixing block 41. The trigger block 37 is slidably arranged in the through groove and the trigger block 37 is arranged outside the third fixing block 41. An infrared sensor 38 is fixedly arranged on the top of the third fixing block 41. When the pipe fitting pushes the pushing block 35, the trigger block 37 moves towards the infrared sensor 38 in the third fixing block 41 along with the telescopic end of the oil pressure buffer 36 and approaches the infrared sensor 38. Thus, after the infrared sensor 38 senses the trigger block 37, the device starts to operate.

[0034] During the process of the operator placing the pipe fitting, the operator pushes the pipe fitting to move towards the pushing block 35 and contacts the pushing block 35, and then continuously pushes the pushing block 35, so as to push the oil pressure buffer 36 and the trigger block 37 to move towards the infrared sensor 38 and approach the infrared sensor 38. When the infrared sensor 38 senses the trigger block 37, the device starts to operate. This operation only requires the operator to place the pipe fitting and push the pipe fitting to trigger the infrared sensor 38, which can realize the automatic operation of the device, with high automation and mechanization degree. The setting of the oil pressure buffer 36 is to protect the infrared sensor 38. When the pipe fitting moves to a positioning point, it can avoid the infrared sensor 38 being directly impacted by the pipe fitting. Through a certain distance of buffering, the impact force can be reduced when the pipe fitting stops working, playing a role in protecting the machine; it relies on the elastic force of the spring to reset.

[0035] Working principle:

[0036] In the initial state (such as Figure 1 ), the arc surface of the first sector plate 1 faces downward, and the arc surface of the second sector plate 2 faces upward; the first mounting block 5 and the second mounting block 9 are both vertically arranged; the length directions of the first support block 25 and the second support block 30 are respectively perpendicular to the length directions of the first mounting block 5 and the second mounting block 9.

[0037] When in use, take two pipe fittings and horizontally insert them into the placement grooves 3 between the first sector plate 1 and the second sector plate 2, and push the two pipe fittings, so that the oil pressure buffer 36 and the trigger block 37 move towards the infrared sensor 38. When the trigger block 37 moves to a positioning point, the infrared sensor 38 senses the trigger block 37, and the device starts to operate:

[0038] The first electric slider 6 and the second electric slider 10 approach the pipe fitting along the first electric slide rail 23 and the second electric slide rail 24 respectively. The sliding of the first electric slider 6 and the second electric slider 10 drives the clamping grooves 8 on the first clamping block 7 and the second clamping block 11 to abut against the pipe fitting respectively;

[0039] Then, the output end of the second motor 17 drives the second transmission shaft 18 and the third sprocket 19 to rotate counterclockwise. The rotation of the third sprocket 19 drives the second chain 22 to rotate counterclockwise. The rotation of the second chain 22 drives the two second sprockets 21 and the two third transmission shafts 20 to rotate counterclockwise. The rotation of the two third transmission shafts 20 drives the first mounting block 5 and the second mounting block 9 to rotate counterclockwise respectively. During this process, the rotation of the first mounting block 5 and the second mounting block 9 drives the first support block 25, the first clamping block 7, the second support block 30, and the second clamping block 11 to rotate counterclockwise. Thus, the two rod segments of the pipe fitting are bent parallel along the arc surfaces of the first sector plate 1 and the second sector plate 2. At this time, the pushing block 35 slides downward and resets on the first clamping block 7 by the elastic force of the spring (as Figure 2 );

[0040] And due to the bending of the pipe fitting, the mutual forces between the pipe fitting and the first clamping block 7 and the second clamping block 11 cause the first clamping block 7 to move downward along the length direction of the first support block 25, and the second clamping block 11 to slide upward along the length direction of the second support block 30. And the first clamping block 7 and the second clamping block 11 respectively pull the first spring 29 and the second spring 34 to elongate (as Figure 2 );

[0041] After completion, rotate the first mounting block 5 and the second mounting block 9 clockwise. At this time, the first spring 29 and the second spring 34 contract and pull the first clamping block 7 and the second clamping block 11 back to the initial state respectively (as Figure 1 ), thus facilitating the bending of the next batch of pipe fittings.

[0042] Finally, the output end of the first motor 13 drives the first transmission shaft 14 connected to the output end of the first motor 13 to rotate counterclockwise. The rotation of this first transmission shaft 14 drives the first sector plate 1 and the first sprocket 15 connected to this first transmission shaft 14 to rotate counterclockwise. The rotation of this first sprocket 15 drives the first chain 16 to rotate counterclockwise. The rotation of the first chain 16 drives the other first sprocket 15 and the other first transmission shaft 14 to rotate counterclockwise. The rotation of the other first transmission shaft 14 drives the second sector plate 2 to rotate counterclockwise. At this time, the arc surface of the first sector plate 1 faces upward, and the arc surface of the second sector plate 2 faces downward (as Figure 3 ), and then the operator removes the bent pipe fitting, and thus the entire operation is completed.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A pipe bending device, characterized in that: The invention comprises a mounting seat (4), wherein a rotating first sector disk (1) and a rotating second sector disk (2) are provided on the mounting seat (4), and two placement grooves (3) are provided on the arc surface of the first sector disk (1) and the second sector disk (2); the mounting seat (4) is provided with a rotating first mounting block (5), and the first mounting block (5) is provided with a first supporting block (25) sliding along the length direction of the first mounting block (5); the first supporting block (25) is provided with a first clamping block (7) sliding along the length direction of the first supporting block (25), and the first clamping block (7) is arranged below the first sector disk (1), and the first clamping block (7) and the first clamping block (7) are connected to each other. A first restoring member is provided between the first supporting blocks (25); a rotatable second mounting block (9) is provided on the mounting seat (4); the second mounting block (9) is provided with a second supporting block (30) sliding along the length direction of the second mounting block (9); the second supporting block (30) is provided with a second clamping block (11) sliding along the length direction of the second supporting block (30); the second clamping block (11) is provided above the second sector disk (2); a second restoring member is provided between the second clamping block (11) and the second supporting block (30); and two clamping grooves (8) are provided on the first clamping block (7) and the second clamping block (11) for clamping pipe fittings.

2. A pipe bending device according to claim 1, characterized in that: The mounting seat (4) is provided with a first motor (13), the first sector disk (1) and the second sector disk (2) are both fixedly provided with a first transmission shaft (14), and the two first transmission shafts (14) are both fixedly sleeved with a first sprocket (15), the output end of the first motor (13) is connected to one of the first transmission shafts (14), and the other first transmission shaft (14) is rotatably connected to the mounting seat (4), and a first chain (16) is meshed between the two first sprockets (15).

3. A pipe bending device according to claim 2, characterized in that: The mounting seat (4) is provided with a second motor (17), the output end of the second motor (17) is connected to a second transmission shaft (18), and a third sprocket (19) is fixedly sleeved on the second transmission shaft (18); a third transmission shaft (20) is fixedly penetrated through the first mounting block (5) and the second mounting block (9), the two third transmission shafts (20) are both hollow cylinders and respectively penetrate through the two first transmission shafts (14); two first fixing blocks (40) are fixedly provided on the mounting seat (4), and the outer circumferences of the two third transmission shafts (20) are rotatably penetrated through the two first fixing blocks (40); a second sprocket (21) is fixedly sleeved on the two third transmission shafts (20); a second chain (22) is meshed between the third sprocket (19) and the two second sprockets (21).

4. A pipe bending device according to claim 1, characterized in that: The first mounting block (5) is provided with a first electric slide rail (23), a first electric slider (6) is slidably disposed in the first electric slide rail (23), and the first support block (25) is fixedly connected to the first electric slider (6); the second mounting block (9) is provided with a second electric slide rail (24), a second electric slider (10) is slidably disposed in the second electric slide rail (24), and the second support block (30) is fixedly connected to the second electric slider (10).

5. A pipe bending device according to claim 4, characterized in that: The first supporting block (25) is provided with a first sliding groove (26), and the first clamping block (7) is slidably arranged in the first sliding groove (26); a first auxiliary block (27) is fixedly arranged at one end of the first clamping block (7) facing the second sector disk (2), a first auxiliary plate (28) is fixedly arranged on the side wall of the first supporting block (25), and the first restoring member is a first spring (29), and the first spring (29) is arranged between the first auxiliary block (27) and an end of the first auxiliary plate (28) away from the first auxiliary block (27); The second support block (30) is provided with a second slide groove (31), and the second clamping block (11) is slidably arranged in the second slide groove (31); a second auxiliary block (32) is fixedly arranged at one end of the second clamping block (11) facing the first fan-shaped disk (1), and a second auxiliary plate (33) is fixedly arranged on the side wall of the second support block (30); the second restoring member is a second spring (34), and the second spring (34) is arranged between the second auxiliary block (32) and the end of the second auxiliary plate (33) away from the second auxiliary block (32).

6. A pipe bending device according to claim 5, characterized in that: A second fixing block (39) is fixedly provided on the first auxiliary plate (28), a hollow third fixing block (41) perpendicular to the second fixing block (39) is fixedly provided on the second fixing block (39), a through groove along the length direction of the third fixing block (41) is opened on the top surface of the third fixing block (41), a push block (35) is slidably provided in the clamping groove (8) provided on the first clamping block (7), a hydraulic buffer (36) is fixedly provided on one side of the push block (35), a trigger block (37) is fixedly provided at the telescopic end of the hydraulic buffer (36), and the hydraulic buffer ( The telescopic end of the oil pressure buffer (36) is slidably arranged on the third fixed block (41), the trigger block (37) is slidably arranged in the through groove, and the trigger block (37) is arranged on the outside of the third fixed block (41), and an infrared sensor (38) is fixedly arranged on the top of the third fixed block (41). The trigger block (37) is used to follow the telescopic end of the oil pressure buffer (36) to move toward the infrared sensor (38) in the third fixed block (41) and approach the infrared sensor (38) when the pipe pushes the pushing block (35), so that the infrared sensor (38) senses the trigger block (37) and starts the device to run.

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