Chemical plant smoke detection device

Abstract

The application discloses a chemical plant smoke detection device, relates to the technical field of chemical plant smoke detection, and comprises a rack and a material receiving assembly. One end of the top of the rack is provided with a detection device emitting end, one end of the lower part of the rack is provided with a detection device receiving end, and the middle part of the rack is provided with a transfer assembly. The top of the rack is fixedly provided with a limiting strip, and the top of the rack is provided with a discharging groove. The cam mechanism is used for intermittent rotation feeding of the feeding disc. The circular film clamp is guided to automatically discharge under the limiting strip. The cam shaft can be connected with the material receiving assembly. During non-feeding, the pressing plate can be pressed down, the clamping block is triggered to slide, the circular film clamp after discharging can be automatically stacked in the upper end of the material receiving cylinder, the design realizes the full-process automation of the transfer, discharging and stacking of the circular film clamp, optimizes the space utilization rate during the stacking of the circular film clamp, and facilitates the subsequent transfer of the circular film clamp.

Description

Technical Field

[0001] This invention relates to the field of chemical plant dust detection technology, specifically to a chemical plant dust detection device. Background Technology

[0002] Smoke and dust refer to solid particulate matter suspended in the air, usually composed of smoke, dust, or fine particulate matter released by burning substances. Detecting smoke and dust in chemical plants is a core measure to ensure production safety, personnel health, and environmental compliance.

[0003] For example, patent CN222866476U discloses a dust detection device. This patent, by setting up a placement mechanism, can store the circular membrane clips containing samples that pop out from the device's outlet, preventing the circular membrane clips from falling to the ground due to personnel not retrieving or catching them in time, thus damaging the samples and affecting secondary testing. However, when storing the circular membrane clips, they are laid flat on a placement plate, resulting in a large overall horizontal space occupation. In addition, the number of circular membrane clips that can be stored is relatively small, requiring frequent transfers and consuming considerable manpower. Summary of the Invention

[0004] The purpose of this invention is to provide a dust detection device for chemical plants to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a dust detection device for a chemical plant, comprising a frame and a receiving assembly. A detection device transmitter is mounted at one top end of the frame, and a detection device receiver is mounted at one lower end of the frame. A transfer assembly is mounted in the middle of the frame. A limit strip is fixed to the top of the frame, and a discharge chute is provided at the top of the frame. The receiving assembly is located at one end of the limit strip and includes a receiving cylinder. The receiving cylinder is slidably connected to one corner of the frame, and a support is slidably connected to the inside of the receiving cylinder. Spring seats are symmetrically arranged at the lower part of the support, and a locking block is fixed to one end of the spring seats. Locking grooves are symmetrically provided on the inner side of the receiving cylinder. A connecting rod is rotatably connected to one end of the transfer assembly, and a guide plate is rotatably connected to one end of the connecting rod. A driving block is slidably connected to the inside of the guide plate, and a lifting frame is fixed to the top of the driving block. A pressure plate is fixed to one lower end of the lifting frame, and a limit cover is slidably connected to the outer side of the pressure plate.

[0006] Furthermore, both the lifting frame and the guide plate are slidably connected to the machine frame, and the through groove in the guide plate is composed of inclined grooves and straight grooves.

[0007] Furthermore, the limiting cover is fixedly connected to the limiting strip, and the limiting strip is U-shaped.

[0008] Furthermore, the transfer assembly includes a motor, the motor is mounted in the middle of the frame, and the output end of the motor is connected to a camshaft. A roller seat is slidably connected to the upper middle part of the camshaft, and a feeding tray is fixed to the top of the roller seat. A guide groove is provided at the outer top of the feeding tray.

[0009] Furthermore, both the camshaft and the roller seat are rotatably connected to the frame, and the camshaft is rotatably connected to the connecting rod.

[0010] Furthermore, a correction component is provided in the middle of the lifting frame, and the correction component includes a drive frame. The drive frame is placed in the middle of the lifting frame, and a sliding column is abutted at the bottom of the drive frame. One end of the sliding column is rotatably connected to a rotating shaft, and a torsion spring is fixed on the lower outer side of the rotating shaft. A rotating plate is placed at the lower end of the rotating shaft.

[0011] Furthermore, the torsion spring is fixedly connected to the limiting strip, and the limiting strip is rotatably connected to the rotating shaft.

[0012] Furthermore, a positioning assembly is provided at the lower part of the frame, and the positioning assembly includes a guide frame. The guide frame is fixed at the lower part of the frame, and one end of the guide frame is connected to a ball bearing side plate. An electric cylinder is installed on one side of the guide frame, and the output end of the electric cylinder is connected to a support plate. A pulley seat is provided on the lower top surface of the support plate, and the pulley seat is fixedly connected to the receiving cylinder. A buffer spring abuts against one side of the upper part of the support plate, and one end of the buffer spring abuts against a sliding plate. Connecting plates are rotatably connected to both sides of the sliding plate, and a ball bearing clamp is rotatably connected to the end of the connecting plate. A hook plate is fixed to the top of the sliding plate.

[0013] Furthermore, the ball clamp is arc-shaped and is rotatably connected to the ball side plate.

[0014] Furthermore, the tray is L-shaped and is slidably connected to the guide frame and the hook plate, respectively.

[0015] This invention provides a dust detection device for chemical plants, which has the following advantages:

[0016] 1. This invention uses a cam mechanism to achieve intermittent rotation of the feeding tray for feeding. The circular film clamps will automatically unload under the guidance of the limit bar. At the same time, the cam shaft can be linked to the receiving component. During non-feeding periods, it can be linked to the pressure plate to press down and trigger the sliding of the clamping block. The unloaded circular film clamps can be automatically stacked into the upper part of the receiving cylinder. This design realizes full automation of the transfer, unloading and stacking of circular film clamps, optimizes the space utilization when storing circular film clamps, and facilitates the subsequent transfer of circular film clamps.

[0017] 2. When the pressure plate moves down, the drive frame squeezes the sliding column to trigger the rotation of the rotating plate, which positions and corrects the circular membrane clamp, ensuring that the membrane clamp falls accurately above the receiving cylinder. Subsequently, when the lifting frame rises, the torsion spring automatically retracts the rotating plate to avoid the subsequent entry of the circular membrane clamp. This structure eliminates the risk of the circular membrane clamp being misaligned and jammed, improving the reliability of the system from the hardware level.

[0018] 3. The electric cylinder controls the translation of the pallet, which enables the material receiving cylinder to fall off by gravity and be lifted for installation. During this process, the buffer spring and the ball bearing clamp complete adaptive clamping and centering, improving the accuracy of material receiving cylinder docking and the stability of disassembly and assembly. This design enables one-click replacement of the material receiving cylinder and reduces the intensity of manual operation. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a chemical plant dust detection device according to the present invention;

[0020] Figure 2 This is a three-dimensional structural diagram of the transfer component of a chemical plant dust detection device according to the present invention;

[0021] Figure 3 This is a schematic diagram of the unloading trough structure of a chemical plant dust detection device according to the present invention;

[0022] Figure 4 This is a three-dimensional structural diagram of a support for a chemical plant dust detection device according to the present invention;

[0023] Figure 5 This is a three-dimensional structural diagram of the lifting frame of a chemical plant dust detection device according to the present invention;

[0024] Figure 6 This is a three-dimensional structural diagram of the rotating plate of a chemical plant dust detection device according to the present invention;

[0025] Figure 7 This is a three-dimensional structural diagram of the positioning component of a chemical plant dust detection device according to the present invention.

[0026] In the diagram: 1. Frame; 2. Detection device transmitter; 3. Detection device receiver; 4. Transfer assembly; 401. Motor; 402. Camshaft; 403. Roller seat; 404. Feeding tray; 405. Guide chute; 5. Limit bar; 6. Unloading chute; 7. Receiving assembly; 701. Receiving cylinder; 702. Support; 703. Spring seat; 704. Locking block; 705. Locking slot; 706. Connecting rod; 707. Guide plate; 708. Drive block; 709. Lifting frame; 710. Pressure plate; 711. Limit cover; 8. Correction assembly; 801. Drive frame; 802. Sliding column; 803. Rotating shaft; 804. Torsion spring; 805. Rotating plate; 9. Positioning assembly; 901. Guide frame; 902. Ball bearing side plate; 903. Electric cylinder; 904. Support plate; 905. Pulley seat; 906. Buffer spring; 907. Sliding plate; 908. Connecting plate; 909. Ball bearing clamp; 910. Hook plate. Detailed Implementation

[0027] Please see Figures 1 to 5 This invention provides a technical solution: a dust detection device for a chemical plant, comprising a frame 1 and a receiving assembly 7. A detection device transmitter 2 is mounted at the top end of the frame 1, and a detection device receiver 3 is mounted at the lower end of the frame 1. A transfer assembly 4 is mounted in the middle of the frame 1, including a motor 401. The output end of the motor 401 is connected to a camshaft 402. A roller seat 403 is slidably connected to the upper middle part of the camshaft 402, and a feeding tray 404 is fixed to the top of the roller seat 403. A guide groove 405 is formed at the outer top end of the feeding tray 404. A limit strip 5 is fixed to the top of the frame 1, and a discharge groove 6 is formed at the top of the frame 1. The receiving assembly 7 is located at one end of the limit strip 5 and includes a receiving cylinder 701. The receiving cylinder 701 is slidably connected to the inside of one corner of the frame 1, and the inside of the receiving cylinder 701 slides... A support 702 is connected, and spring seats 703 are symmetrically arranged on the lower part of the support 702. A locking block 704 is fixed to one end of the spring seat 703. The inner side of the receiving cylinder 701 is symmetrically provided with locking grooves 705. One end of the transfer component 4 is rotatably connected to a connecting rod 706, and one end of the connecting rod 706 is rotatably connected to a guide plate 707. The camshaft 402 and the roller seat 403 are both rotatably connected to the frame 1, and the camshaft 402 is rotatably connected to the connecting rod 706. A drive block 708 is slidably connected inside the guide plate 707, and a lifting frame 709 is fixed on the top of the drive block 708. Both the lifting frame 709 and the guide plate 707 are slidably connected to the frame 1. The through groove inside the guide plate 707 is composed of inclined grooves and straight grooves. A pressure plate 710 is fixed at one end of the lower part of the lifting frame 709, and a limit cover 711 is slidably connected to the outside of the pressure plate 710. The limit cover 711 is fixedly connected to the limit strip 5, and the limit strip 5 is U-shaped.

[0028] The specific operation is as follows: Motor 401 drives roller seat 403 to rotate intermittently via the protrusion on camshaft 402, thereby causing feeding disc 404 to intermittently feed circular film clamps in guide groove 405. The circular film clamp samples are detected by the transmitter 2 and receiver 3 of the detection device. Simultaneously, guide groove 405 only contacts the lower side of the circular film clamp. When the circular film clamp moves to limit bar 5, limit bar 5 contacts its upper side. Therefore, as feeding disc 404 continues to rotate, the circular film clamp will automatically move to the top of support 702 under the guidance of limit bar 5, automatically unloading. During this process, camshaft 402 also pushes guide plate 707 via connecting rod 706, causing drive block 708 to slide within the straight groove of guide plate 707, keeping the height of lifting frame 709 constant. Then, camshaft 402 continues to rotate. When its protruding straight edge contacts roller seat 403, it can... The rotation angle of the feeding tray 404 is locked. At the same time, the camshaft 402 pushes the guide plate 707 through the connecting rod 706. The drive block 708 moves into the inclined groove of the guide plate 707, which pulls the lifting frame 709, so that the pressure plate 710 presses on the edge of the circular membrane clamp. Since the circular membrane clamp applies pressure to the support 702, and the farthest travel of the pressure plate 710 when it moves down is when its bottom surface is flush with the top surface of the unloading groove 6, the locking block 704 pushes the spring seat 703 under the guidance of the inclined surface of the locking groove 705, so that the locking block 704 separates from the locking groove 705 and slides down into the next locking groove 705 to engage. This automatically collects the used circular membrane clamp into the upper part of the receiving cylinder 701, so that its top surface is flush with the top surface of the unloading groove 6. In subsequent repeated operations, the circular membrane clamps can be stacked one by one into the receiving cylinder 701, which occupies little space and is convenient for transfer.

[0029] Please see Figure 6 The lifting frame 709 is provided with a correction component 8 in the middle, and the correction component 8 includes a drive frame 801. The drive frame 801 is placed in the middle of the lifting frame 709, and the bottom of the drive frame 801 abuts against a sliding column 802. One end of the sliding column 802 is rotatably connected to a rotating shaft 803, and a torsion spring 804 is fixed on the lower outer side of the rotating shaft 803. A rotating plate 805 is placed at the lower end of the rotating shaft 803. The torsion spring 804 is fixedly connected to a limiting strip 5, and the limiting strip 5 is rotatably connected to the rotating shaft 803.

[0030] The specific operation is as follows: During the downward movement of the lifting frame 709, the drive frame 801 will also move downward synchronously. The lower inclined surface of the drive frame 801 will press the sliding column 802, causing the rotating shaft 803 to rotate. This will cause the rotating plates 805 inside both sides of the limiting strip 5 to automatically rotate towards the center, so as to push the circular film clamp into the interior of the limiting strip 5. When the sliding column 802 moves to the side of the drive frame 801, the circular film clamp will be tightly attached to the inner side of the limiting strip 5 and aligned with the upper opening of the guide frame 901. Subsequently, as the pressure plate 710 moves downward, the circular film clamp can be accurately pressed into the upper part of the receiving cylinder 701, avoiding jamming due to skew. When the lifting frame 709 moves the pressure plate 710 upward to reset, the drive frame 801 will also release the limiting obstruction of the sliding column 802. Therefore, under the drive of the torsion spring 804, the rotating plate 805 can be retracted into the interior of the limiting strip 5, avoiding obstruction of the circular film clamp that enters later.

[0031] Please see Figure 7 A positioning component 9 is provided at the lower part of the frame 1, and the positioning component 9 includes a guide frame 901. The guide frame 901 is fixed at the lower part of the frame 1, and one end of the guide frame 901 is connected to a ball bearing side plate 902. An electric cylinder 903 is installed on one side of the guide frame 901, and the output end of the electric cylinder 903 is connected to a support plate 904. A pulley seat 905 is provided on the lower top surface of the support plate 904, and the pulley seat 905 is fixedly connected to the receiving cylinder 701. The upper side of the support plate 904 abuts against a ball bearing side plate 902. A buffer spring 906 is provided, and one end of the buffer spring 906 abuts against a sliding plate 907. A connecting plate 908 is rotatably connected to both sides of the sliding plate 907, and a ball clamp 909 is rotatably connected to the end of the connecting plate 908. The ball clamp 909 is arc-shaped and rotatably connected to the ball side plate 902. A hook plate 910 is fixed to the top of the sliding plate 907. A support plate 904 is L-shaped and slidably connected to the guide frame 901 and the hook plate 910 respectively.

[0032] The specific operation is as follows: A through groove is provided on one side of the receiving cylinder 701 to facilitate observation of the internal circular film clamp's storage capacity. When the receiving cylinder 701 is full and needs to be replaced, simply move the electric cylinder 903 to drive the support plate 904 back, which will remove it from under the pulley seat 905. The receiving cylinder 701 will then move downwards under gravity, moving its top out of the hole in the frame 1. Subsequently, the support plate 904 will contact the end of the hook plate 910, which will pull the sliding plate 907, thereby causing the connecting plate 908 to pull the ball clamp 909, automatically releasing the receiving cylinder 701 for removal and replacement. During replacement, simply push the receiving cylinder 701... When the electric cylinder 903 moves the support plate 904 to the receiving cylinder 701, it will first push the sliding plate 907 through the buffer spring 906, which will then cause the connecting plate 908 to push the ball clamping plate 909 to clamp the receiving cylinder 701, automatically centering it so that its upper end is aligned with the upper hole of the limit strip 5. Then, when the support plate 904 is inserted into the lower end of the pulley seat 905, it can drive the receiving cylinder 701 to move up and insert into the upper hole of the frame 1, realizing quick docking and installation, and convenient operation. At the same time, the ball bearings on the inner side of the ball side plate 902 and the sliding plate 907 can reduce the frictional resistance when the receiving cylinder 701 slides up and down.

[0033] In summary, when using this chemical plant dust detection device, the circular membrane clamp to be tested is first placed in the feed trough 405. Then, the motor 401 is started by the controller, which drives the roller seat 403 to rotate intermittently through the protrusion on the camshaft 402. This causes the feeding plate 404 to intermittently feed the circular membrane clamp in the feed trough 405, moving it between the transmitting end 2 and the receiving end 3 of the detection device for detection operation.

[0034] Next, after the inspection, when the circular membrane clamp moves to the limit bar 5, the limit bar 5 will contact the upper side of it. When the feeding plate 404 continues to rotate, the circular membrane clamp will automatically move to the top of the support 702 under the guidance of the limit bar 5 and automatically unload the material. During the rotation of the feeding plate 404, the camshaft 402 will also push the guide plate 707 through the connecting rod 706, so that the drive block 708 slides in the straight groove inside the guide plate 707, so that the height of the lifting frame 709 remains unchanged.

[0035] Then, the camshaft 402 continues to rotate. When its convex straight edge contacts the roller seat 403, it can lock the rotation angle of the feed plate 404. At the same time, the camshaft 402 will push the guide plate 707 through the connecting rod 706. The drive block 708 moves into the inclined groove of the guide plate 707, thus pulling the lifting frame 709 to move down. During this process, the lifting frame 709 will also drive the drive frame 801 to move down synchronously. Through its lower inclined surface, it squeezes the sliding column 802, driving the rotating shaft 803 to rotate, so that the rotating plates 805 inside both sides of the limiting strip 5 automatically rotate towards the center, so as to push the circular film clamp into the interior of the limiting strip 5. When the sliding column 802 moves to the side of the drive frame 801, it can make the circular film clamp close to the inner side of the limiting strip 5 and aligned with the upper opening of the guide frame 901. Subsequently, the pressure plate 710 will press on the edge of the circular film clamp, and because the circular film clamp... The membrane clamp applies pressure to the support 702, and the farthest travel of the pressure plate 710 when it moves down is when its bottom surface is flush with the top surface of the unloading trough 6. Therefore, the locking block 704 will push the spring seat 703 under the guidance of the inclined surface of the locking slot 705, so that the locking block 704 separates from the locking slot 705 and slides down to the next locking slot 705 to engage, thereby automatically collecting the used circular membrane clamp into the upper part of the receiving cylinder 701, so that its top surface is flush with the top surface of the unloading trough 6. When the lifting frame 709 drives the pressure plate 710 to move up and reset, it will also cause the drive frame 801 to release the limiting obstruction of the sliding column 802. Therefore, under the drive of the torsion spring 804, the rotating plate 805 can be collected into the inside of the limiting strip 5, avoiding obstruction of the subsequent circular membrane clamps. In subsequent repeated operations, the circular membrane clamps can be stacked one by one into the receiving cylinder 701, which occupies less space and is convenient for transportation.

[0036] Finally, by observing through the side groove of the receiving cylinder 701, when the internal circular film clamp is full, the electric cylinder 903 is activated to move the support plate 904 back, removing it from under the pulley seat 905. The receiving cylinder 701 will then move downwards under gravity, moving its top out of the hole in the frame 1. Subsequently, the support plate 904 will contact the end of the hook plate 910, which will pull the sliding plate 907, thereby causing the connecting plate 908 to pull the ball clamp 909, automatically releasing the receiving cylinder 701 for removal and replacement. During replacement, only the receiving cylinder needs to be removed. When the cylinder 701 is pushed to one side of the ball bearing side plate 902, the electric cylinder 903 drives the support plate 904 to move towards the receiving cylinder 701. The sliding plate 907 is pushed by the buffer spring 906, which in turn causes the connecting plate 908 to push the ball bearing clamp 909 to clamp the receiving cylinder 701, automatically centering it so that its upper end is aligned with the upper hole of the limit strip 5. Then, when the support plate 904 is inserted into the lower end of the pulley seat 905, it can drive the receiving cylinder 701 to move upward and insert it into the upper hole of the frame 1, achieving quick docking and installation, and convenient operation.

[0037] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A dust detection device for a chemical plant, characterized in that, The assembly includes a frame (1) and a receiving assembly (7). A detection device transmitter (2) is installed at one top end of the frame (1), and a detection device receiver (3) is installed at one bottom end of the frame (1). A transfer assembly (4) is installed in the middle of the frame (1). A limit strip (5) is fixed at the top of the frame (1), and a discharge chute (6) is opened at the top of the frame (1). The receiving assembly (7) is located at one end of the limit strip (5), and the receiving assembly (7) includes a receiving cylinder (701). The receiving cylinder (701) is slidably connected to one corner of the frame (1), and a support (702) is slidably connected to the inside of the receiving cylinder (701). Spring seats (703) are symmetrically arranged at the lower part of the support (702). The spring seat (703) is fixed with a locking block (704) at one end. The receiving cylinder (701) is symmetrically provided with locking slots (705) on the inner side. The transfer component (4) is rotatably connected to a connecting rod (706) at one end. The connecting rod (706) is rotatably connected to a guide plate (707) at one end. The guide plate (707) is slidably connected to a driving block (708) inside. The top of the driving block (708) is fixed with a lifting frame (709). The lower end of the lifting frame (709) is fixed with a pressure plate (710). The outer side of the pressure plate (710) is slidably connected with a limit cover (711). The middle part of the lifting frame (709) is provided with a correction component (8). The correction component (8) includes a driving frame (801). A drive frame (801) is installed in the middle of the lifting frame (709), and a sliding column (802) abuts against the bottom of the drive frame (801). A rotating shaft (803) is rotatably connected to one end of the sliding column (802), and a torsion spring (804) is fixed to the lower outer side of the rotating shaft (803). A rotating plate (805) is installed at the lower end of the rotating shaft (803). The torsion spring (804) is fixedly connected to a limiting strip (5), and the limiting strip (5) is rotatably connected to the rotating shaft (803). A positioning component (9) is provided at the lower part of the frame (1), and the positioning component (9) includes a guide frame (901). The guide frame (901) is fixed at the lower part of the frame (1), and a ball bearing side plate (901) is connected to one end of the guide frame (901). 02), an electric cylinder (903) is installed on one side of the guide frame (901), and the output end of the electric cylinder (903) is connected to a support plate (904). A pulley seat (905) is provided on the lower top surface of the support plate (904), and the pulley seat (905) is fixedly connected to the receiving cylinder (701). A buffer spring (906) abuts against one side of the upper part of the support plate (904), and one end of the buffer spring (906) abuts against a sliding plate (907). Connecting plates (908) are rotatably connected to both sides of the sliding plate (907), and a ball clamp (909) is rotatably connected to the end of the connecting plate (908). A hook plate (910) is fixed to the top of the sliding plate (907), and the ball clamp (909) is arc-shaped.Furthermore, the ball bearing clamp (909) is rotatably connected to the ball bearing side plate (902), and the support plate (904) is L-shaped, and the support plate (904) is slidably connected to the guide frame (901) and the hook plate (910) respectively.

2. The chemical plant dust detection device according to claim 1, characterized in that, The lifting frame (709) and the guide plate (707) are both slidably connected to the frame (1), and the through groove in the guide plate (707) is composed of inclined groove and straight groove.

3. The chemical plant dust detection device according to claim 1, characterized in that, The limiting cover (711) is fixedly connected to the limiting strip (5), and the limiting strip (5) is U-shaped.

4. The chemical plant dust detection device according to claim 1, characterized in that, The transfer assembly (4) includes a motor (401), the motor (401) is installed in the middle of the frame (1), and the output end of the motor (401) is connected to a camshaft (402). The upper middle part of the camshaft (402) is slidably connected to a roller seat (403), and a feeding tray (404) is fixed on the top of the roller seat (403). A guide groove (405) is opened on the outer top of the feeding tray (404).

5. A chemical plant dust detection device according to claim 4, characterized in that, The camshaft (402) and roller seat (403) are rotatably connected to the frame (1), and the camshaft (402) is rotatably connected to the connecting rod (706).

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