A hydraulic cylinder retarding protection device

Abstract

The present invention relates to the technical field of hydraulic cylinders, and is a hydraulic cylinder deceleration protection device, comprising a control mechanism, a hydraulic cylinder body is arranged on the outside of the control mechanism, the control mechanism and the hydraulic cylinder body are connected by a separation mechanism, the control mechanism comprises a rectangular shell and a pump body, a mounting flange is connected to the pump body, the pump body is connected to the shell through the mounting flange, a storage box is fixedly connected to the inside of the shell, and the storage box is connected to the output end of the pump body. The present invention can automatically adjust the flow rate and speed of the oil body according to the actual working conditions through the intelligent regulation of the oil inlet control module and the oil discharge control module, thereby achieving the slow-down effect of the hydraulic cylinder, thereby ensuring the smoothness and accuracy of the equipment operation, reducing mechanical loss and operation risks, and by equipping with an emergency discharge pump and a block design, even in the event of power supply interruption or device failure, the safety of operation can be maintained, and the movement of the hydraulic cylinder can be stopped or controlled in time.

Description

Technical Field

[0001] The invention relates to the technical field of hydraulic cylinders, and in particular to a hydraulic cylinder deceleration protection device. Background Art

[0002] Hydraulic cylinder is an actuator widely used in industrial machinery and equipment. It uses the force of oil pressure to achieve linear motion or apply force. Hydraulic system is used in many important industrial occasions, such as manufacturing machinery, construction machinery and automation equipment, due to its powerful force output and precise control ability.

[0003] However, hydraulic cylinders face some technical challenges in practical applications, especially the control of hydraulic cylinder speed. When a hydraulic cylinder is under heavy weight, its return speed may become too fast due to the influence of gravity, which not only impacts the mechanical structure and increases wear, but also threatens operational safety. On the contrary, when the hydraulic cylinder moves downward, the return speed may be too slow, which will affect the overall operating efficiency and mechanical response speed. Therefore, precise adjustment of the movement speed of the hydraulic cylinder to adapt to different operating requirements and protect equipment safety is an urgent problem to be solved in hydraulic technology.

[0004] In addition, traditional hydraulic systems have certain deficiencies in safety measures. Many systems lack sufficient automatic safety mechanisms to respond quickly in emergency situations. For example, when the system fails or the power supply is unexpectedly interrupted, the hydraulic cylinder may not be able to stop or adjust in time, which further increases the operational risks and potential safety hazards. Therefore, the development of a hydraulic control system that integrates speed regulation and efficient safety measures is of great significance to improving the stability and safety of the overall equipment.

[0005] Therefore, those skilled in the art have proposed a hydraulic cylinder retarding protection device. Summary of the invention

[0006] In view of the above problems existing in the prior art, the main purpose of the present invention is to provide a hydraulic cylinder deceleration protection device.

[0007] The technical solution of the present invention is as follows: a hydraulic cylinder retarding protection device comprises a control mechanism, a hydraulic cylinder body is arranged on the outside of the control mechanism, the control mechanism and the hydraulic cylinder body are connected via a separation mechanism, the control mechanism comprises a rectangular shell and a pump body, the pump body is connected to a mounting flange, the pump body is connected to the shell via the mounting flange, a storage box is fixedly connected to the inside of the shell, the storage box is connected to the output end of the pump body, and a connecting pipe is connected to the storage box.

[0008] Through the above-mentioned technical means, a structure in which the control mechanism and the hydraulic cylinder body are connected by a separation mechanism is adopted, which greatly improves the flexibility of use and the convenience of operation of the hydraulic cylinder. The device extracts the oil in the storage box through the pump body in the control mechanism, and discharges it to the hydraulic cylinder body through the connecting pipe and the separation mechanism, thereby realizing effective separation and precise delivery of the oil circuit. This design allows the deceleration and movement speed of the hydraulic cylinder to be finely controlled by adjusting the oil pumping amount of the pump body, so as to maintain efficient and stable performance under various working conditions. Compared with traditional fixed hydraulic cylinders, the modular and adjustable design of this device makes the overall structure more compact and easier to install and maintain, especially suitable for application scenarios that require frequent adjustment of movement speed and pressure.

[0009] As a preferred embodiment, a distribution pump is fixedly connected to the shell, the end of the connecting pipe away from the storage box extends to the top of the shell and is connected to the distribution pump, the connecting pipe is connected to a pressure gauge, a delivery pipe is fixedly connected to the distribution pump and located on one side of the connecting pipe, the end of the delivery pipe away from the distribution pump is fixedly connected to a discharge pump, and the bottom of the discharge pump extends to the interior of the shell.

[0010] Through the above technical means, the introduction of the distribution pump not only realizes the effective discharge and recovery of the oil, but also ensures the smooth and stable operation of the hydraulic cylinder body. Secondly, by setting a pressure gauge on the connecting pipe, the operator can monitor and accurately understand the pressure of the device in real time, further enhancing the monitorability of the device. In addition, the design of the discharge pump as a safety guarantee facility can quickly discharge the oil in an emergency and instantly eliminate the pressure in the hydraulic cylinder body, greatly improving the safe operation of the equipment. These configurations enable the entire device to provide high-efficiency performance while greatly reducing potential safety risks, adapting to the strict requirements of modern industry for high safety and reliability.

[0011] As a preferred embodiment, an oil inlet control module is fixedly connected to the distribution pump, an oil discharge control module is fixedly connected to the distribution pump and located on one side of the oil inlet control module, an oil replenishment pipe is connected to the side of the distribution pump away from the delivery pipe, and two connection interfaces are symmetrically fixedly connected to the side of the distribution pump away from the delivery pipe.

[0012] Through the above technical means, the equipment can automatically adjust the flow of oil according to real-time pressure data to achieve precise pressure control. The oil inlet control module allows rapid pressure increase when the descent speed is too fast, while the oil discharge control module reduces pressure when the ascent speed needs to be accelerated. The coordinated work of the two greatly optimizes the operating efficiency and safety of the hydraulic cylinder.

[0013] In addition, the electrical connection between the integrated pressure gauge and the control module provides a continuous monitoring and instant feedback mechanism, so that the entire device can automatically adjust in any working state to maintain stable operation. This automated pressure regulation not only improves the convenience of operation, but also significantly enhances the reliability and durability of the device. By implementing these technologies, the present invention significantly improves the performance and safety standards of hydraulic devices in industrial applications, meeting the dual needs of modern industry for high efficiency and high safety.

[0014] As a preferred embodiment, the hydraulic cylinder body includes an outer shell, three joints are equidistantly fixedly connected to the top of the outer shell, two telescopic rods are symmetrically arranged inside the outer shell, the outer sides of the telescopic rods are slidably connected to spacers, the top of the spacers are fixedly connected to a first sealing ring, the outer side of the spacer and one side of the first sealing ring is movably connected to a separation sealing ring, the separation sealing ring is arranged in a three-part structure, one side of the spacer and one end of the outer shell is fixedly connected to a mounting plate, and the mounting plate and the outer shell are connected by screws.

[0015] Through the above technical means, by introducing the structure of two telescopic rods and spacers, the precise positioning and space utilization of the hydraulic cylinder during operation are effectively achieved, thereby improving the smoothness of the telescopic effect and the reliability of the return movement. The existence of the spacer not only plays a limiting function, but also provides the necessary space for oil injection, ensuring the continuity of movement. The three equidistant joints on the top of the shell provide a stable structural connection point, and the spacer outside the telescopic rod cooperates with the first sealing ring on the top and the more critical separation sealing ring to form a multi-stage sealing mechanism. The first sealing ring initially prevents oil leakage, while the separation sealing ring is the core sealing component. Its three-part structure and high elastic material enable it to fit tightly to the inner wall of the shell, which not only ensures the smoothness and stability of the movement, but also has multiple guarantees in terms of sealing protection, significantly enhancing the comprehensive performance of the device and the reliability of long-term use.

[0016] As a preferred embodiment, the ends of the two telescopic rods that are away from each other extend to the outside of the outer shell and are fixedly connected with a connecting end, the ends of the two telescopic rods that are close to each other are fixedly connected with a first top plate, the outside of the telescopic rods and on one side of the first top plate are fixedly connected with a second top plate, corresponding to the fixed connection between the first top plate and the second top plate, the outside of the first top plate is fixedly connected with a second sealing ring, the outside of the first top plate and on one side of the second sealing ring are fixedly connected with a third sealing ring, and the outside of the first top plate and between the second sealing ring and the third sealing ring are fixedly connected with a fourth sealing ring.

[0017] Through the above technical means, efficient and flexible power transmission and limit control are achieved. As the part in direct contact with the oil body, the first top plate effectively converts the pressure of the oil body into the power of the telescopic rod body, ensuring the accurate response and movement of the hydraulic cylinder. At the same time, the design of the second top plate sets a clear limit for the movement of the telescopic rod body to ensure that the movement does not exceed the predetermined range, enhancing the operational safety and stability of the equipment. By setting up a multi-layer sealing structure, it not only provides multiple protections to prevent oil leakage, but also protects the internal mechanical parts from the external environment, greatly extending the service life of the equipment. The careful configuration of these sealing rings ensures the reliable sealing of the hydraulic device in a high-pressure environment, reducing maintenance costs and possible downtime.

[0018] As a preferred embodiment, the separation mechanism includes a separator, which is composed of two box bodies with the same structure, and two first oil pipes are symmetrically fixedly connected to the outer side of the separator, and two second oil pipes are symmetrically fixedly connected to the side of the separator away from the first oil pipe, one end of one of the second oil pipes is fixedly connected to a tee, and two connecting points of the tee are fixedly connected to two fourth oil pipes.

[0019] Through the above-mentioned technical means, efficient management and optimized flow of the oil are achieved, which significantly improves the performance and reliability of the entire hydraulic device.

[0020] As a preferred embodiment, an adjusting groove is provided inside the separator, the adjusting groove is configured as an arc surface, and an adjusting rod is slidably connected inside the adjusting groove.

[0021] Through the above-mentioned technical means, by setting a curved surface structure, the contact effect can be ensured, and at the same time the operation can be more convenient.

[0022] As a preferred embodiment, four blocking blocks are fixedly connected to the outer side of the adjusting rod, and sealing strips are sleeved on the outer sides of the blocking blocks. Through holes for cooperating with the first oil pipe, the second oil pipe and the third oil pipe are opened on both sides of the separator, and the through holes on both sides are arranged in a cross structure, and the center distance between two corresponding through holes is the same as the spacing between two corresponding blocking blocks.

[0023] Through the above technical means, the design of the adjusting rod and its matching block and sealing strip effectively enhances the operational flexibility and safety of the separator. The precise matching of the block and the through hole allows the separator to achieve multiple states such as one-way opening, one-way closing, two-way opening and two-way closing, so as to adapt to different working conditions and needs, and provide precise control and limit of the hydraulic cylinder body. In addition, the application of the block not only optimizes the control of the oil circuit, but also serves as a safety mechanism to increase the reliability of the device. In the event of power outages or other emergencies, the block can keep the hydraulic cylinder body in a safe state without the need for additional power supply, which greatly reduces potential operational risks and maintenance requirements. This design not only improves the flexibility and safety of the equipment, but also increases the reliability and autonomy of the equipment under extreme or non-standard operating conditions by reducing dependence on electricity.

[0024] As a preferred embodiment, one end of the adjusting rod extends to the outside of the separator and is fixedly connected to the adjusting end, the first oil pipe is connected to the corresponding connecting interface, the second oil pipe cooperates with the joint located at the center of the outer shell, and the fourth oil pipe is used in conjunction with the other two corresponding joints.

[0025] Through the above technical means and the above settings, the control mechanism, the hydraulic cylinder body and the separation mechanism can be connected to achieve the purpose of coordinated work.

[0026] Compared with the prior art, the advantages and positive effects of the present invention are:

[0027] 1. When the hydraulic cylinder body needs to reduce speed during operation, the oil inlet control module can add oil to counteract excessive downward pressure and ensure the smooth operation of the cylinder. On the contrary, if the return speed is too slow, the oil discharge control module will drain the oil and adjust the oil pressure to achieve the desired speed and performance. Through the intelligent regulation of the oil inlet control module and the oil discharge control module, the flow and speed of the oil can be automatically adjusted according to the actual working conditions, achieving the slow descent effect of the hydraulic cylinder, thereby ensuring the smoothness and accuracy of equipment operation and reducing mechanical loss and operation risks;

[0028] 2. The discharge pump can be started quickly to directly discharge the oil between the control mechanism and the distribution pump, realizing the instantaneous force elimination of the hydraulic cylinder body. In addition, the block can cooperate with the through hole, and the separator can be placed in different states through manual or automatic adjustment, providing additional safety for the device. This device strengthens the safety of the equipment and can respond quickly in abnormal or emergency situations to ensure the safety of personnel and equipment. The design equipped with an emergency discharge pump and a block can maintain the safety of operation and stop or control the movement of the hydraulic cylinder in time even in the event of power supply interruption or device failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is an isometric view of the overall structure of the present invention.

[0030] Figure 2 It is a first isometric view of the control mechanism of the present invention.

[0031] Figure 3 It is a second isometric view of the control mechanism of the present invention.

[0032] Figure 4 It is a schematic diagram of the connection state between the hydraulic cylinder body and the control mechanism of the present invention.

[0033] Figure 5 It is a schematic diagram of the internal structure of the separator of the present invention.

[0034] Figure 6 It is a schematic diagram of the internal structure of the hydraulic cylinder body of the present invention.

[0035] Figure 7 It is the single body structure of the hydraulic cylinder body of the present invention and its partial enlarged view.

[0036] Figure 8 It is a cutaway isometric view of the telescopic rod body of the present invention.

[0037] Legend: 1. Control mechanism; 11. Pump body; 12. Mounting flange; 13. Storage box; 14. Connecting pipe; 15. Distribution pump; 16. Pressure gauge; 17. Delivery pipe; 18. Discharge pump; 19. Oil inlet control module; 110. Oil discharge control module; 111. Oil replenishment pipe; 112. Connection interface; 2. Hydraulic cylinder body; 21. Housing; 22. Joint; 23. Telescopic rod; 24. Spacer; 25. First sealing ring; 26. Distribution Separation sealing ring; 27, mounting plate; 28, connecting end; 29, first top plate; 210, second top plate; 211, second sealing ring; 212, third sealing ring; 213, fourth sealing ring; 3, separation mechanism; 31, separator; 32, first oil pipe; 33, second oil pipe; 34, third oil pipe; 35, tee; 36, fourth oil pipe; 37, adjustment groove; 38, arc surface; 39, adjustment rod; 310, block; 311, adjustment end. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments.

[0039] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0040] Example

[0041] like Figure 1 , Figure 2 and Figure 3 As shown, the present invention provides a hydraulic cylinder retarding protection device: comprising a control mechanism 1, a hydraulic cylinder body 2 is arranged outside the control mechanism 1, the control mechanism 1 and the hydraulic cylinder body 2 are connected through a separation mechanism 3, the control mechanism 1 comprises a rectangular shell and a pump body 11, the pump body 11 is connected to a mounting flange 12, the pump body 11 is connected to the shell through the mounting flange 12, a storage box 13 is fixedly connected inside the shell, the storage box 13 is connected to the output end of the pump body 11, the storage box 13 is connected to a connecting pipe 14, the storage box 1 3 is used to store oil. When in use, the oil in the storage box 13 is first extracted by starting the pump body 11, and is discharged through the connecting pipe 14 and then transmitted to the separation mechanism 3, and the oil circuit is separated by the separation mechanism 3, so that the oil circuit is separated and the oil is transmitted to the hydraulic cylinder body 2, so that the driving of the hydraulic cylinder body 2 can be completed. Through such a setting, the deceleration and movement speed of the hydraulic cylinder body 2 can be controlled by the oil pumping amount of the pump body 11, which is more convenient and flexible to use than the traditional fixed hydraulic cylinder.

[0042] like Figure 1 , Figure 2 and Figure 3 As shown, a distribution pump 15 is fixedly connected to the shell, one end of the connecting pipe 14 away from the storage box 13 extends to the top of the shell and is connected to the distribution pump 15, a pressure gauge 16 is connected to the connecting pipe 14, a delivery pipe 17 is fixedly connected to the distribution pump 15 and located on one side of the connecting pipe 14, and one end of the delivery pipe 17 away from the distribution pump 15 is fixedly connected to a discharge pump 18, and the bottom of the discharge pump 18 extends to the inside of the shell, and the distribution pump 15 is used to discharge and recover the oil, which enables the hydraulic cylinder body 2 to work normally, and the pressure gauge 16 can facilitate the staff to intuitively understand the pressure value generated during the operation of the hydraulic cylinder body 2, and the discharge pump 18 is a safety measure, which needs to be started separately. When the discharge pump 18 is turned on, the oil between the entire control mechanism 1 and the distribution pump 15 will be directly discharged, so that the hydraulic cylinder body 2 can be guaranteed to be instantly de-energized. In this way, when some unexpected situations occur, the hydraulic cylinder body 2 can be quickly de-energized. Through such a setting, accidents can be prevented.

[0043] like Figure 1 , Figure 2 and Figure 3As shown, the distribution pump 15 is fixedly connected with an oil inlet control module 19, and the distribution pump 15 and one side of the oil inlet control module 19 are fixedly connected with an oil discharge control module 110, and the side of the distribution pump 15 away from the delivery pipe 17 is connected with an oil replenishment pipe 111, and the side of the distribution pump 15 away from the delivery pipe 17 is symmetrically fixedly connected with two connection interfaces 112, the oil inlet control module 19 can add oil to the hydraulic cylinder body 2 to increase the pressure to resist the descending speed, and the oil discharge control module 110 can discharge oil from the hydraulic cylinder body 2 to reduce the pressure to speed up the descending speed, and the two are electrically connected with the pressure gauge 16, and the real-time pressure of the hydraulic cylinder body 2 is monitored by the pressure gauge 16, and data is provided to the control module to determine whether oil inlet or oil discharge is required;

[0044] Its operation logic can be referred to as follows:

[0045] #Define constants:

[0046] MAX_PRESSURE=100#The maximum pressure value set

[0047] MIN_PRESSURE=20#The minimum pressure value set

[0048] defcheck_pressure_and_control(current_pressure,current_directi on):

[0049] ifcurrent_direction=="descending":

[0050] ifcurrent_pressure <MIN_PRESSURE:

[0051] control_inlet_valve(calculate_oil_needed())

[0052] print("Increasepressure,slowdownthedescent")

[0053] else:

[0054] print("Pressureiswithinnormalrange")

[0055] elifcurrent_direction=="ascending":

[0056] ifcurrent_pressure>MAX_PRESSURE:

[0057] control_discharge_valve(calculate_oil_to_release())

[0058] print("Decrease pressure, speed up the ascent")

[0059] else:

[0060] print("Pressure is within normal range")

[0061] def control_inlet_valve(oil_amount):

[0062] # Code to open inlet valve

[0063] # Code to add specified amount of oil

[0064] # Code to close inlet valve

[0065] def control_discharge_valve(oil_amount):

[0066] # Code to open discharge valve

[0067] # Code to release specified amount of oil

[0068] # Code to close discharge valve

[0069] # Main program

[0070] current_pressure = read_pressure_sensor()

[0071] current_direction = detect_cylinder_movement()

[0072] check_pressure_and_control(current_pressure, current_direction).

[0073] Such as Figure 1 、 Figure 3 、 Figure 6 、 Figure 7 and Figure 8As shown, the hydraulic cylinder body 2 includes a shell 21, and three joints 22 are fixedly connected to the top of the shell 21 at equal distances. Two telescopic rods 23 are symmetrically arranged inside the shell 21. The outer sides of the telescopic rods 23 are slidably connected with spacers 24. The top of the spacer 24 is fixedly connected with a first sealing ring 25. The outer side of the spacer 24 and one side of the first sealing ring 25 are movably connected with a separation sealing ring 26. The separation sealing ring 26 is arranged in a three-equal structure. One side of the spacer 24 and one end of the shell 21 is fixedly connected with a mounting plate 27. The mounting plate 27 is connected to the shell 21 by screws. The spacer 24 is used for limiting to ensure that the hydraulic cylinder body 2 has enough space for oil injection so that the telescopic rod 23 has the ability to perform return motion. The first sealing ring 25 is used for the first layer of protection to prevent oil leakage, and the separation sealing ring 26 is the most important sealing means, which can be highly elastically compressed to ensure that the spacer 24 is in tight contact with the inner wall of the shell 21 while preventing external debris from entering.

[0074] like Figure 1 , Figure 3 , Figure 6 , Figure 7 and Figure 8 As shown, the ends of the two telescopic rods 23 that are far away from each other extend to the outside of the housing 21 and are fixedly connected with the connecting end 28, the ends of the two telescopic rods 23 that are close to each other are fixedly connected with the first top plate 29, the outside of the telescopic rods 23 and on one side of the first top plate 29 are fixedly connected with the second top plate 210, and the first top plate 29 and the second top plate 210 are fixedly connected, the outside of the first top plate 29 is fixedly connected with the second sealing ring 211, the outside of the first top plate 29 and on one side of the second sealing ring 211 are fixedly connected with the third sealing ring 212, and the first top plate A fourth sealing ring 213 is fixedly connected to the outside of 29 and between the second sealing ring 211 and the third sealing ring 212. The first top plate 29 is used to directly contact the oil body. After the oil body contacts the first top plate 29, it will drive the telescopic rod body 23 to move through the first top plate 29. When the second top plate 210 contacts the spacer 24, it is in a limited state. After that, oil is injected into the spacer 24 and the second top plate 210, so that the second top plate 210 can be used as a carrier to drive the telescopic rod body 23 to move, thereby completing the driving work of the hydraulic cylinder body 2.

[0075] like Figure 1 , Figure 4 and Figure 5As shown, the separation mechanism 3 includes a separator 31, which is composed of two box bodies with the same structure. Two first oil pipes 32 are symmetrically fixedly connected to the outer side of the separator 31, and two second oil pipes 33 are symmetrically fixedly connected to the side of the separator 31 away from the first oil pipe 32, one end of which is fixedly connected to a tee 35, and two connecting parts of the tee 35 are fixedly connected to two fourth oil pipes 36. The first oil pipe 32 is directly connected to the separator 31 so that the oil body can be injected into the separator 31, and the second oil pipe 33 is used as a pipeline for the deployed driving oil body for oil injection, and the fourth oil pipe 36 is used as a pipeline for the return driving oil body for oil injection.

[0076] like Figure 1 , Figure 4 and Figure 5 As shown, an adjustment groove 37 is opened inside the separator 31, and the adjustment groove 37 is set as an arc surface 38. An adjustment rod 39 is slidably connected inside the adjustment groove 37. By setting the structure of the arc surface 38, the contact effect can be guaranteed, and the operability can be more convenient.

[0077] like Figure 1 , Figure 4 and Figure 5 As shown, four blocking blocks 310 are fixedly connected to the outer side of the adjusting rod 39, and sealing strips are sleeved on the outer sides of the blocking blocks 310. Through holes for cooperating with the first oil pipe 32, the second oil pipe 33 and the third oil pipe 34 are opened on both sides of the separator 31, and the through holes on both sides are arranged in a cross structure. The center distance between the corresponding two through holes is the same as the distance between the corresponding two blocking blocks 310. The blocking blocks 310 can cooperate with the through holes so that the entire separator 31 can be in a state of one-way opening, one-way closing, two-way opening, and two-way closing. In this way, when the hydraulic cylinder body 2 is in positioning work, the power supply of the control mechanism 1 can be stopped after the adjustment is completed, and the limiting effect of the hydraulic cylinder body 2 can be completed only by adjusting the blocking blocks 310. Similarly, this can also be used as a safety measure.

[0078] like Figure 1 , Figure 4 and Figure 5 As shown, one end of the adjusting rod 39 extends to the outside of the separator 31 and is fixedly connected with the adjusting end 311, the first oil pipe 32 is connected to the corresponding connecting interface 112, the second oil pipe 33 cooperates with the joint 22 located at the center of the shell 21, and the fourth oil pipe 36 is used in conjunction with the other two corresponding joints 22. Through the above-mentioned arrangement, the control mechanism 1, the hydraulic cylinder body 2 and the separation mechanism 3 can be connected to achieve the purpose of coordinated work.

[0079] Working principle:

[0080] When in use, the oil in the storage box 13 is first extracted by starting the pump body 11, and discharged to the distribution pump 15 through the connecting pipe 14. The distribution pump 15 introduces the oil into the separator 31 through the first oil pipe 32, and the separator 31 then introduces the oil into the hydraulic cylinder body 2 through the second oil pipe 33, thereby completing the drive to the hydraulic cylinder body 2. When the hydraulic cylinder body 2 needs to return, oil can be injected into the hydraulic cylinder body 2 through the two fourth oil pipes 36 to make it return. During this period, the pressure gauge 1 6 can facilitate the staff to intuitively understand the pressure value generated by the hydraulic cylinder body 2 during operation. The oil inlet control module 19 and the oil discharge control module 110 are sensed by the pressure gauge 16. When the hydraulic cylinder body 2 is subjected to excessive pressure and causes rapid descent, the oil can be supplemented through the oil inlet control module 19 so that the hydraulic cylinder body 2 is supported by pressure, thereby ensuring the deceleration. When the return speed of the hydraulic cylinder body 2 is too slow, the oil discharge control module 110 can be used to drain the oil to ensure the deceleration of the hydraulic cylinder, and the discharge pump 18 is a safety measure, which needs to be started separately. When the discharge pump 18 is turned on, the oil between the entire control mechanism 1 and the distribution pump 15 will be directly discharged, so that the hydraulic cylinder body 2 can be instantly de-energized. In this way, when some unexpected situations occur, the hydraulic cylinder body 2 can be quickly de-energized. Through such a setting, accidents can be prevented. During use, the block 310 can cooperate with the through hole so that the entire separator 31 can be in a state of one-way opening, one-way closing, two-way opening, and two-way closing. In this way, when the hydraulic cylinder body 2 is in positioning work, the power supply of the control mechanism 1 can be stopped after the adjustment is completed. The limiting effect of the hydraulic cylinder body 2 can be completed only by adjusting the block 310. Similarly, this can also be used as a safety measure. By adopting the above-mentioned technical means, the device can not only automatically control the deceleration of the hydraulic cylinder, but also flexibly set the deceleration of the hydraulic cylinder according to the actual situation to achieve the effect of slow descent. At the same time, a plurality of safety devices are arranged inside the device, which can significantly improve the safety performance of the device.

[0081] Finally, it should be noted that the above-described embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some or all of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A hydraulic cylinder retarding protection device, comprising a control mechanism (1), characterized in that: A hydraulic cylinder body (2) is arranged on the outside of the control mechanism (1), and the control mechanism (1) and the hydraulic cylinder body (2) are connected via a separation mechanism (3). The control mechanism (1) comprises a rectangular shell and a pump body (11), and the pump body (11) is connected to a mounting flange (12). The pump body (11) is connected to the shell via the mounting flange (12). A storage box (13) is fixedly connected to the inside of the shell, and the storage box (13) is connected to the output end of the pump body (11). A connecting pipe (14) is connected to the storage box (13), and a distribution pump (15) is fixedly connected to the shell, and an end of the connecting pipe (14) away from the storage box (13) extends to the top of the shell and is connected to the distribution pump (15). 15), a pressure gauge (16) is connected to the connecting pipe (14), a delivery pipe (17) is fixedly connected to the distribution pump (15) and located on one side of the connecting pipe (14), a discharge pump (18) is fixedly connected to one end of the delivery pipe (17) away from the distribution pump (15), the bottom of the discharge pump (18) extends to the interior of the housing, an oil inlet control module (19) is fixedly connected to the distribution pump (15), an oil discharge control module (110) is fixedly connected to the distribution pump (15) and located on one side of the oil inlet control module (19), an oil replenishment pipe (111) is connected to one side of the distribution pump (15) away from the delivery pipe (17), and the distribution pump (15) is symmetrically fixedly connected to one side of the distribution pump (15) away from the delivery pipe (17). There are two connection interfaces (112), the separation mechanism (3) comprises a separator (31), the separator (31) is composed of two boxes of the same structure, the outer side of the separator (31) is symmetrically fixedly connected to two first oil pipes (32), the side of the separator (31) away from the first oil pipe (32) is symmetrically fixedly connected to two second oil pipes (33), one end of one of the second oil pipes (33) is fixedly connected to a tee (35), two connection points of the tee (35) are fixedly connected to two fourth oil pipes (36), an adjustment groove (37) is provided inside the separator (31), the adjustment groove (37) is set as an arc surface (38), and the inside of the adjustment groove (37) is slidably connected to an adjustment rod (3 9), four blocking blocks (310) are fixedly connected to the outer side of the adjusting rod (39), and sealing strips are sleeved on the outer sides of the blocking blocks (310). Through holes for cooperating with the first oil pipe (32), the second oil pipe (33) and the third oil pipe (34) are opened on both sides of the separator (31), and the through holes on both sides are arranged in a cross structure, and the center distance between the corresponding two through holes is the same as the distance between the corresponding two blocking blocks (310). One end of the adjusting rod (39) extends to the outer side of the separator (31) and is fixedly connected with an adjusting end (311). The first oil pipe (32) is connected to the corresponding connection interface (112), and the second oil pipe (33) cooperates with the joint (22) located at the center of the housing (21).The fourth oil pipe (36) is used in conjunction with the other two corresponding joints (22).

2. A hydraulic cylinder retarding protection device according to claim 1, characterized in that: The hydraulic cylinder body (2) comprises an outer shell (21), the top of which is equidistantly fixedly connected to three joints (22), the interior of which is symmetrically provided with two telescopic rods (23), the outer sides of which are slidably connected to spacers (24), the top of which is fixedly connected to a first sealing ring (25), the outer side of which is located at one side of the first sealing ring (25) and is movably connected to a separation sealing ring (26), the separation sealing ring (26) being arranged in a three-part structure, one side of which is located at one end of the outer shell (21) and is fixedly connected to a mounting plate (27), the mounting plate (27) being connected to the outer shell (21) by screws.

3. A hydraulic cylinder retarding protection device according to claim 2, characterized in that: The ends of the two telescopic rods (23) that are away from each other extend to the outside of the housing (21) and are fixedly connected to a connecting end (28); the ends of the two telescopic rods (23) that are close to each other are fixedly connected to a first top plate (29); a second top plate (210) is fixedly connected to the outside of the telescopic rods (23) and located on one side of the first top plate (29); the first top plate (29) and the second top plate (210) are fixedly connected; a second sealing ring (211) is fixedly connected to the outside of the first top plate (29); a third sealing ring (212) is fixedly connected to the outside of the first top plate (29) and located on one side of the second sealing ring (211); and a fourth sealing ring (213) is fixedly connected to the outside of the first top plate (29) and located between the second sealing ring (211) and the third sealing ring (212).

Images