Container water electrolysis hydrogen production system based on photovoltaic power generation

Abstract

The invention relates to the technical field of hydrogen energy preparation, in particular to a container water electrolysis hydrogen production system based on photovoltaic power generation, which comprises an electrolysis structure, a positive plate and a negative plate, and the electrolysis structure is clamped between the positive plate and the negative plate; the hydrogen production system further comprises a clamping mechanism used for clamping the electrolysis structure. The clamping mechanism comprises a fixedly-arranged positive electrode pressing plate and a negative electrode pressing plate capable of moving in the axial direction of the positive electrode pressing plate. The clamping mechanism further comprises a retraction control unit which is used for reducing the distance between the positive electrode pressing plate and the negative electrode pressing plate to recover the sealing performance of the electrolysis structure when the electrolysis structure leaks. The clamping force of the electrolysis structure is monitored in real time through the pressure sensor, when the clamping force is reduced due to leakage, the retraction control unit can be automatically triggered, adjustment of the distance between the polar plates is achieved, the sealing performance of the electrolysis structure is recovered, manual intervention is not needed, and the reliability and the response speed of a hydrogen production system are greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of hydrogen energy preparation, and in particular to a container water electrolysis hydrogen production system based on photovoltaic power generation. Background Art

[0002] The containerized water electrolysis hydrogen production system based on photovoltaic power generation, as an efficient integrated device that converts solar energy into hydrogen energy, has attracted much attention in recent years in the global energy transition wave. Relying on the standardized design of the container, it has the advantages of small footprint, strong mobility, and easy installation. It can be flexibly deployed in energy-demand areas, achieving "install-and-use"; at the same time, its combination with photovoltaic power generation is in line with the development trend of efficient utilization of renewable energy, providing a new solution for the large-scale production of clean energy. However, in actual application, the sealing problem of the electrolyzer has always been a key factor restricting its stable operation; For example, patent number CN216274402U discloses a photovoltaic power generation and water electrolysis hydrogen production system based on container configuration, which includes: a container body, the container body is divided into a first area and a second area by a partition, the first area is arranged with an electrical device, the second area is arranged with a hydrogen production device and a fuel cell system, the inner side wall of the container body is installed with a first explosion-proof wire pipe for covering and accommodating the electrical circuit of the power supply hydrogen production device, and the container body is provided with a plurality of second explosion-proof wire pipes for connecting to external photovoltaic power generation devices. The disclosed photovoltaic power generation and water electrolysis hydrogen production system based on container configuration, the container body is equipped with a complete set of hydrogen production, power distribution and hydrogen energy generation and storage devices, which facilitates the transportation of the entire container hydrogen production system to the vicinity of the photovoltaic power generation device for configuration operations.

[0003] The hydrogen production device mentioned in the above patent includes an electrolyzer, and the proton exchange membrane (PEM) water electrolysis hydrogen production technology in the electrolyzer has become one of the hydrogen production technologies with great development potential due to its advantages such as fast response speed, high hydrogen purity and no alkaline liquid pollution.

[0004] However, in practical applications, the sealing problem of the electrolyzer has always been a key factor restricting its stable operation. Traditional electrolyzer sealing mainly relies on elastic sealing rings to provide pre-tightening force to achieve sealing. However, under long-term high pressure, high humidity and electrochemical corrosion environment, the elastic sealing ring will gradually age and lose its elasticity, thus generating leakage gaps. Once a leak occurs, it will not only lead to waste of hydrogen and electrolyte, but may also cause safety hazards. For example, hydrogen leakage may cause an explosion. At present, the solution to the problem of electrolyzer leakage is mostly manual regular inspection and manual adjustment. This method has the problem of delayed response and cannot detect and deal with small leaks in time. At the same time, the adjustment accuracy is insufficient, making it difficult to accurately restore the sealing of the electrolyzer, and it cannot meet the requirements of containerized hydrogen production systems for automation, compactness and high reliability. Therefore, there is an urgent need to develop a hydrogen production system that can automatically detect and repair electrolyzer leaks to improve the safety and stability of water electrolysis hydrogen production equipment. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to propose a containerized water electrolysis hydrogen production system based on photovoltaic power generation, which effectively avoids the problem of electrolytic cell leakage and is suitable for hydrogen production scenarios with high requirements for sealing and automation.

[0006] Based on the above objectives, the present invention provides a containerized water electrolysis hydrogen production system based on photovoltaic power generation, which is used to prevent leakage in the electrolytic cell, including an electrolysis structure, a positive electrode plate and a negative electrode plate, wherein the electrolysis structure is sandwiched between the positive electrode plate and the negative electrode plate; The hydrogen production system further includes a clamping mechanism for clamping the electrolysis structure, the clamping mechanism including a fixed positive electrode pressure plate and a negative electrode pressure plate movable along the axial direction of the positive electrode pressure plate, the positive electrode plate and the negative electrode plate being padded on opposite surfaces of the positive electrode pressure plate and the negative electrode pressure plate respectively; The clamping mechanism also includes a retraction control unit, which is used to reduce the distance between the positive electrode pressure plate and the negative electrode pressure plate to restore the sealing of the electrolysis structure when leakage occurs in the electrolysis structure.

[0007] Preferably, a base is provided below the positive electrode pressure plate and the negative electrode pressure plate, and the negative electrode pressure plate is fixedly mounted on the base; The base is provided with a slide rail, and a slider is slidably provided on the slide rail, and the positive electrode pressure plate is fixedly installed on the slider.

[0008] Preferably, the positive electrode pressure plate is recessed on the side opposite to the electrolytic structure to form a pressure chamber; A sliding plate is provided inside the pressure chamber, the sliding plate is slidably connected to the inner wall of the pressure chamber via a sliding groove, and the sliding plate is fixedly connected to the slider via a structural member; A limiting ring is fixedly provided on the outside of the pressure chamber to prevent the sliding plate from escaping from the pressure chamber; A pressure sensor is provided inside the pressure chamber, and a detection end of the pressure sensor faces the sliding plate.

[0009] Preferably, a spring is provided in the pressure chamber, and two ends of the spring are respectively connected to the inner wall of the pressure chamber and the sliding plate.

[0010] Preferably, bolts are provided around the negative electrode pressing plate, and the bolts pass through the positive electrode pressing plate and the sliding plate in sequence; The sliding plate is surrounded by a nut corresponding to the bolt, and the nut is rotatably connected to the sliding plate.

[0011] Preferably, the clamping mechanism comprises a gear ring and a first rotary driver; A gear is sleeved on the nut, and the gear is fixedly connected to the nut; The gear ring is rotatably mounted on the limiting ring, and the gear ring is meshed with the gear; The first rotary driver is mounted on the slider, and is used to drive the ring gear to rotate.

[0012] Preferably, the base is symmetrically provided with a first friction plate along the slide rail, and the first friction plate is laid parallel to the length direction of the base slide rail; The slider is provided with a locking mechanism, which includes a second friction plate. The locking mechanism is used to drive the second friction plate to contact the first friction plate.

[0013] Preferably, the locking mechanism further comprises a supporting piece, and the supporting piece is separated on both sides of the slider; The second friction plate is arranged on the outer side of the support plate, and the inner side of the support plate is fixed with a guide rod and rotatably provided with a threaded rod; The slider is formed with a vertical plate corresponding to the support plate, the guide rod passes through the vertical plate and is slidably connected thereto, the threaded rod passes through the vertical plate, and a threaded sleeve is rotatably provided on the vertical plate and is threadedly connected to the threaded rod; The slider is rotatably provided with a connecting rod and a second rotary driver is fixedly installed. The second rotary driver is used to drive the connecting rod to rotate. The connecting rod is connected to the threaded sleeves on both sides of the slider through a synchronous belt transmission.

[0014] Beneficial effects of the present invention: Automatic leak repair: The present invention monitors the clamping force of the electrolysis structure in real time through a pressure sensor. When a leak occurs and the clamping force decreases, it can automatically trigger the retraction control unit to adjust the plate spacing and restore the sealing of the electrolysis structure without manual intervention, greatly improving the reliability and response speed of the hydrogen production system.

[0015] High-precision adjustment: A bolt-nut, ring gear, and gear transmission structure, combined with real-time feedback from a pressure sensor, enables high-precision adjustment of the plate spacing. Each adjustment step can be precisely controlled (e.g., 0.1mm), ensuring uniform and stable clamping force, meeting the stringent sealing requirements of high-voltage electrolysis environments.

[0016] Stable and reliable: The setting of the locking mechanism can effectively prevent the displacement of the plates due to external factors such as vibration, ensure the stability of the adjusted plate spacing, further improve the sealing of the electrolysis structure and the stability of the hydrogen production system, and extend the service life of the equipment.

[0017] Compact Structure: The system is integrated into a container, optimizing space utilization through cleverly designed slide rails, pressure chambers, and other structures. The rational layout of various components makes the entire hydrogen production system compact, making it suitable for rapid deployment and mobile applications in distributed hydrogen production scenarios, such as on-board hydrogen production and emergency hydrogen production.

[0018] Photovoltaic power generation integration: This system can be combined with photovoltaic modules on the top of the container to achieve an integrated system of photovoltaic power generation, water electrolysis, and hydrogen storage. This fully utilizes renewable energy, reduces hydrogen production costs, conforms to the trend of green energy development, and has good economic and environmental benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of a partial three-dimensional structure of the present invention; Figure 3 Schematic diagram of the partial decomposition structure of the present invention Figure 1 ; Figure 4 Schematic diagram of the partial decomposition structure of the present invention Figure 2 ; Figure 5 is a side view of the present invention; Figure 6 for Figure 1 Enlarged view of point A.

[0021] The numbers in the figure are: 1-electrolysis structure; 2-positive electrode plate; 3-negative electrode plate; 4-positive electrode pressure plate; 41-nut; 42-gear; 5-negative electrode pressure plate; 51-bolt; 6-clamping mechanism; 61-sliding plate; 62-pressure sensor; 63-limiting ring; 64-spring; 65-gear ring; 66-first rotary drive; 7-base; 71-slide rail; 72-first friction plate; 8-slider; 9-locking mechanism; 91-second friction plate; 92-support plate; 921-guide rod; 93-threaded rod; 94-threaded sleeve; 95-connecting rod; 96-second rotary drive. DETAILED DESCRIPTION

[0022] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to specific embodiments.

[0023] It should be noted that, unless otherwise defined, the technical or scientific terms used in the present invention should have the usual meanings understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0024] In actual application, the hydrogen production system is integrated into a container. A photovoltaic power generation module is installed on the top of the container to convert solar energy into electrical energy to provide power for the electrolysis of water to produce hydrogen. The electrolysis structure 1, positive plate 2, negative plate 3 and clamping mechanism 6 and other components are reasonably arranged inside the container. The electrolysis structure 1 is clamped between the positive plate 2 and the negative plate 3. The positive plate 4 and the negative plate 5 are connected by a base 7 and a slide rail 71. The negative plate 5 is fixed on the base 7, and the positive plate 4 is installed on the slider 8 and can move along the slide rail 71. At the same time, a control system is installed to control the operation of each component and realize the automated management of the hydrogen production process. like Figure 1 and Figure 2 As shown, the containerized water electrolysis hydrogen production system based on photovoltaic power generation according to the present invention mainly includes an electrolysis structure 1, a positive electrode plate 2, a negative electrode plate 3, and a clamping mechanism 6. Among them, the electrolysis structure 1 is sandwiched between the positive electrode plate 2 and the negative electrode plate 3 and is the core component for realizing the electrolysis of water to produce hydrogen; The clamping mechanism 6 includes a fixed positive electrode pressure plate 4 and a negative electrode pressure plate 5 that can move axially along the positive electrode pressure plate 4. The positive electrode plate 2 and the negative electrode plate 3 are respectively padded on the opposite surfaces of the positive electrode pressure plate 4 and the negative electrode pressure plate 5. By adjusting the distance between the positive electrode pressure plate 4 and the negative electrode pressure plate 5, the clamping force of the electrolytic structure 1 is controlled, thereby ensuring the sealing of the electrolytic structure 1. like Figures 1 to 4 As shown, a base 7 is provided below the positive electrode pressure plate 4 and the negative electrode pressure plate 5, and the negative electrode pressure plate 5 is fixedly mounted on the base 7. A slide rail 71 is provided on the base 7, and a slider 8 is slidably provided on the slide rail 71. The positive electrode pressure plate 4 is fixedly mounted on the slider 8. This structural design allows the positive electrode pressure plate 4 to move freely in the axial direction on the slide rail 71, providing a basis for adjusting the distance between the plates. A pressure chamber is formed by an inward depression on the side of the positive electrode pressure plate 4 opposite to the electrolysis structure 1, and a sliding plate 61 is provided inside the pressure chamber. The sliding plate 61 is slidably connected to the inner wall of the pressure chamber through a sliding groove, and the sliding plate 61 is fixedly connected to the slider 8 through a structural member, thereby ensuring that the sliding plate 61 can move synchronously with the slider 8. A limiting ring 63 is fixedly provided on the outside of the pressure chamber to prevent the sliding plate 61 from escaping from the pressure chamber and ensure the movement stability of the sliding plate 61 in the pressure chamber. A pressure sensor 62 is provided inside the pressure chamber, with its detection end facing the sliding plate 61, for real-time monitoring of the pressure changes between the positive electrode pressure plate 4 and the sliding plate 61, thereby indirectly reflecting the clamping force of the electrolysis structure 1.

[0025] To ensure the accuracy of pressure sensor 62 detection, a spring 64 is also installed in the pressure chamber, with both ends of spring 64 connected to the inner wall of the pressure chamber and sliding plate 61 respectively. During the use of the motor slot, the elastic sealing ring in the electrolytic structure 1 will gradually age and lose its elasticity, thereby creating a leakage gap. Because sliding plate 61 is in a fixed state, when the gap in the electrolytic structure 1 is created, the spring 64 against the sliding plate 61 pushes on the positive electrode pressure plate 4, allowing pressure sensor 62 to accurately detect pressure changes. like Figures 2 to 5 As shown, in terms of adjusting the distance between the driving plates, bolts 51 are provided around the negative plate 5, and these bolts 51 pass through the positive plate 4 and the sliding plate 61 in sequence. Nuts 41 corresponding to the bolts 51 are provided around the sliding plate 61, and the nut 41 is rotatably connected to the sliding plate 61. At the same time, the clamping mechanism 6 also includes a ring gear 65 and a first rotary driver 66. A gear 42 is sleeved on the nut 41, and the gear 42 is fixedly connected to the nut 41. The ring gear 65 is rotatably installed on the limiting ring 63, and the ring gear 65 is meshed with the gear 42. The first rotary driver 66 is installed on the slider 8, and by driving the ring gear 65 to rotate, it drives the gear 42 and the nut 41 to rotate, thereby realizing the axial retraction or extension adjustment of the positive plate 4, thereby achieving the purpose of adjusting the distance between the positive plate 4 and the negative plate 5. like Figure 1 and Figure 6 As shown, to ensure the stability of the adjusted plate spacing, the base 7 is symmetrically provided with first friction plates 72 along the slide rails 71. The first friction plates 72 run parallel to the length of the slide rails 71. The slider 8 is provided with a locking mechanism 9, which comprises a second friction plate 91, a support plate 92, a guide rod 921, and a threaded rod 93. The support plates 92 are located on either side of the slider 8. The second friction plate 91 is located on the outer side of the support plate 92. The inner side of the support plate 92 is fixedly provided with a guide rod 921 and a rotatable threaded rod 93. The slider 8 has a vertical plate corresponding to the support plate 92. The guide rod 921 extends through the vertical plate and is slidably connected to it. The threaded rod 93 extends through the vertical plate, and a threaded sleeve 94 is rotatably provided on the vertical plate and is threadedly connected to the threaded rod 93. A linkage rod 95 is rotatably provided on the slider 8, and a second rotary actuator 96 is fixedly mounted thereon. The second rotary actuator 96 is used to drive the linkage rod 95. The linkage rod 95 is connected to the threaded sleeves 94 on either side of the slider 8 via a synchronous belt drive. The connecting rod 95 is driven by the second rotary driver 96, and the threaded rod 93 is driven to rotate through the synchronous belt transmission, thereby adjusting the contact or separation of the second friction plate 91 and the first friction plate 72, realizing the locking and unlocking of the slider 8, ensuring the stability of the pressure plate spacing after adjustment, and preventing the displacement of the pole plate due to factors such as vibration. How it works When the electrolysis structure 1 leaks due to reasons such as aging of the seals, it causes system pressure fluctuations, and these pressure changes are transmitted to the pressure chamber. The pressure sensor 62 monitors the internal pressure of the pressure chamber in real time and indirectly obtains the clamping force of the electrolysis structure 1 by detecting the pressure between the sliding plate 61 and the inner wall of the pressure chamber. When a decrease in clamping force is detected, that is, the pressure between the sliding plate 61 and the inner wall of the pressure chamber decreases and falls below a preset sealing threshold, such as 80% of the initial preload, the electrolysis structure 1 is determined to be leaking, and the retraction control unit is triggered. After the retraction control unit is activated, the first rotary driver 66 starts working and drives the ring gear 65 to rotate. The ring gear 65 drives the nut 41 to rotate by meshing with the gear 42. Since the nut 41 is rotationally connected to the sliding plate 61, and the sliding plate 61 is fixed to the positive electrode pressure plate 4 by a structural member, the rotation of the nut 41 causes the positive electrode pressure plate 4 to move along the slide rail 71 toward the negative electrode pressure plate 5, reducing the distance between the positive electrode pressure plate 4 and the negative electrode pressure plate 5, thereby increasing the clamping force on the electrolytic structure 1. During the adjustment process, the pressure sensor 62 continuously monitors the pressure change until it detects that the clamping force has returned to the preset sealing threshold. At this time, it is considered that the sealing of the electrolytic structure 1 has been restored, the leakage has stopped, and the first rotary driver 66 stops working. After adjustment is complete, to prevent plate displacement due to factors such as vibration, the second rotary actuator 96 is activated, driving the linkage rod 95 to rotate. The linkage rod 95, through the synchronous belt drive, drives the threaded rod 93 to rotate, causing the second friction plate 91 to move toward and engage the first friction plate 72. The friction force secures the position of the slider 8, thereby locking the position of the positive electrode pressure plate 4, ensuring the stability of the adjusted plate spacing and maintaining the sealing of the electrolytic structure 1. Pressure Plate and Base 7: The positive and negative pressure plates 4 and 5, as well as the base 7, are made of corrosion-resistant stainless steel or aluminum alloy. Nickel plating enhances corrosion resistance to withstand the humid and corrosive environment of water electrolysis and ensures the life of the equipment. In this scenario: Pressure sensor 62: Use a miniature strain gauge sensor, such as the ELAF series, which offers high precision of ±0.1% FS and excellent stability. Integrate the pressure sensor 62 into the pressure chamber and connect it to the control system via shielded cable to ensure accurate and stable signal transmission and avoid external electromagnetic interference. Drive Mechanism: Both the first rotary driver 66 and the second rotary driver 96 utilize servo motors. The first rotary driver 66 is connected to the ring gear 65 through the servo motor and a synchronous pulley assembly, while the second rotary driver 96 is connected to the connecting rod 95 through the servo motor and a synchronous pulley assembly. Servomotors offer high control accuracy and fast response speeds. When used in conjunction with a reducer, they achieve high-precision speed control, meeting the system's requirement for micron-level adjustment of the plate spacing and ensuring accuracy and stability during the adjustment process. Other components: Bolts 51, nuts 41, gears 42, ring gear 65, and other transmission components are made of high-strength alloy steel to ensure reliable and stable transmission. Friction plates are made of wear-resistant and high-temperature-resistant materials, such as ceramic-based friction materials, to ensure that locking mechanism 9 can operate stably and effectively secure slider 8. It should be understood by those skilled in the art that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Within the scope of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0026] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A containerized water electrolysis hydrogen production system based on photovoltaic power generation, used to prevent leakage in the electrolyzer, characterized in that: It includes an electrolytic structure, a positive plate and a negative plate, wherein the electrolytic structure is sandwiched between the positive plate and the negative plate; The hydrogen production system further includes a clamping mechanism for clamping the electrolysis structure, the clamping mechanism including a fixed positive electrode pressure plate and a negative electrode pressure plate movable along the axial direction of the positive electrode pressure plate, the positive electrode plate and the negative electrode plate being padded on opposite surfaces of the positive electrode pressure plate and the negative electrode pressure plate respectively; The clamping mechanism also includes a retraction control unit, which is used to reduce the distance between the positive electrode pressure plate and the negative electrode pressure plate to restore the sealing of the electrolysis structure when leakage occurs in the electrolysis structure.

2. A containerized water electrolysis hydrogen production system based on photovoltaic power generation according to claim 1, characterized in that: A base is provided below the positive and negative electrode pressure plates, and the negative electrode pressure plate is fixedly mounted on the base; The base is provided with a slide rail, and a slider is slidably provided on the slide rail, and the positive electrode pressure plate is fixedly installed on the slider.

3. A containerized water electrolysis hydrogen production system based on photovoltaic power generation according to claim 2, characterized in that: The positive electrode pressure plate is recessed on the side opposite to the electrolytic structure to form a pressure chamber; A sliding plate is provided inside the pressure chamber, the sliding plate is slidably connected to the inner wall of the pressure chamber via a sliding groove, and the sliding plate is fixedly connected to the slider via a structural member; A limiting ring is fixedly provided on the outside of the pressure chamber to prevent the sliding plate from escaping from the pressure chamber; A pressure sensor is provided inside the pressure chamber, and a detection end of the pressure sensor faces the sliding plate.

4. A containerized water electrolysis hydrogen production system based on photovoltaic power generation according to claim 3, characterized in that: A spring is provided in the pressure chamber, and two ends of the spring are respectively connected to the inner wall of the pressure chamber and the sliding plate.

5. The containerized water electrolysis hydrogen production system based on photovoltaic power generation according to claim 3 is characterized in that: Bolts are arranged around the negative electrode pressure plate, and the bolts pass through the positive electrode pressure plate and the sliding plate in sequence; The sliding plate is surrounded by a nut corresponding to the bolt, and the nut is rotatably connected to the sliding plate.

6. A containerized water electrolysis hydrogen production system based on photovoltaic power generation according to claim 5, characterized in that: The clamping mechanism includes a gear ring and a first rotary driver; A gear is sleeved on the nut, and the gear is fixedly connected to the nut; The gear ring is rotatably mounted on the limiting ring, and the gear ring is meshed with the gear; The first rotary driver is mounted on the slider, and is used to drive the ring gear to rotate.

7. The containerized water electrolysis hydrogen production system based on photovoltaic power generation according to claim 2, characterized in that: The base is symmetrically provided with a first friction plate along the slide rail, and the first friction plate is laid parallel to the length direction of the base slide rail; The slider is provided with a locking mechanism, which includes a second friction plate. The locking mechanism is used to drive the second friction plate to contact the first friction plate.

8. The containerized water electrolysis hydrogen production system based on photovoltaic power generation according to claim 7, characterized in that: The locking mechanism further includes a supporting piece, and the supporting piece is separated on both sides of the slider; The second friction plate is arranged on the outer side of the support plate, and the inner side of the support plate is fixed with a guide rod and rotatably provided with a threaded rod; The slider is formed with a vertical plate corresponding to the support plate, the guide rod passes through the vertical plate and is slidably connected thereto, the threaded rod passes through the vertical plate, and a threaded sleeve is rotatably provided on the vertical plate and is threadedly connected to the threaded rod; The slider is rotatably provided with a connecting rod and a second rotary driver is fixedly installed. The second rotary driver is used to drive the connecting rod to rotate. The connecting rod is connected to the threaded sleeves on both sides of the slider through a synchronous belt transmission.

Images