Hydraulic cylinder with locking structure

Abstract

The utility model relates to the technical field of hydraulic cylinders, and discloses a hydraulic cylinder with a locking structure, which comprises a hydraulic cylinder body, and the locking mechanism is arranged on the hydraulic cylinder body. The locking mechanism comprises a fixing plate, and the fixing plate is fixedly arranged on the outer wall of the hydraulic cylinder body in a sleeving mode. The electromagnet is electrified to generate magnetic force to attract the iron block, the iron block moves to enable the sliding rod to slide along the inner wall of the sliding hole, so that the iron block drives the sliding rod to move, the sliding rod drives the first sliding block to slide along the inner wall of the first sliding groove, and the first sliding block moves to drive the clamping arm and the locking block to move; therefore, the two locking blocks move relatively and clamp and lock the piston rod of the hydraulic cylinder body, displacement of the piston rod caused by external force is effectively prevented, stability and safety of the hydraulic cylinder in the working process are guaranteed, and reliability of equipment operation is improved.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic cylinder technology, specifically to a hydraulic cylinder with a locking structure. Background Technology

[0002] The function of the locking circuit is to keep the hydraulic cylinder in a position and prevent it from moving due to external forces. This is the locking circuit using a hydraulically controlled check valve. When the directional valve is in the left position, the pressure oil enters the left chamber of the hydraulic cylinder through the check valve. However, the telescopic external locking mechanism is fixed by a telescopic rod, which has poor stability. Therefore, a hydraulic cylinder with a locking structure is proposed to solve the above-mentioned problems. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a hydraulic cylinder with a locking structure, which addresses the shortcomings of the prior art.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a hydraulic cylinder with a locking structure, including a hydraulic cylinder body, wherein a locking mechanism is provided on the hydraulic cylinder body;

[0005] The locking mechanism includes: a fixed plate, which is fixedly sleeved on the outer wall of the hydraulic cylinder body; a frame is fixedly connected to the bottom of the fixed plate; the frame is L-shaped; two sliders are slidably connected to the right side of the frame; a clamping arm is fixedly connected to the right side of each slider; locking blocks are fixedly connected to the opposite faces of the two clamping arms; a sliding rod is fixedly connected to the bottom of each slider; a sliding groove is provided at the bottom of the frame; a slider is slidably connected to the inner wall of the sliding groove; an iron block is fixedly connected to the bottom of the slider; an electromagnet is fixedly connected to the bottom of the frame and is located to the left of the iron block; and two sliding holes are provided at the top of the iron block.

[0006] Preferably, the two sliding holes are arranged in a figure-eight shape, and the outer walls of the two sliding rods are slidably connected to the two sliding holes respectively.

[0007] Preferably, a spring is fixedly connected to the left side of the second slider, and the other end of the spring is fixedly connected to the inner wall of the second groove.

[0008] Preferably, both locking blocks are arc-shaped and arranged opposite each other.

[0009] Preferably, a sliding groove is provided on the right side of the frame, and two sliders are slidably connected to the inner wall of the sliding groove.

[0010] Preferably, the fixed plate is provided with a cleaning mechanism, the cleaning mechanism including: a bracket, the bracket is fixedly connected to the bottom of the fixed plate, the bracket is arranged in an "L" shape, and an arc-shaped scraper is fixedly connected to the end of the bracket away from the fixed plate, and the inner arc surface of the arc-shaped scraper is in contact with the outer wall of the piston rod of the hydraulic cylinder body.

[0011] Preferably, there are two sets of cleaning mechanisms, which are arranged opposite to each other at the bottom of the fixed plate.

[0012] The present invention adopts the above technical solution, which can bring the following beneficial effects:

[0013] 1. This hydraulic cylinder with a locking structure uses an electromagnet to generate magnetic force to attract an iron block. The movement of the iron block causes the slide rod to slide along the inner wall of the slide hole, thereby moving the slide rod and causing the slide rod to move the slider along the inner wall of the slide groove. The movement of the slider causes the clamping arm and locking block to move, thereby moving the two locking blocks relative to each other and clamping and locking the piston rod of the hydraulic cylinder body. This effectively prevents the piston rod from being displaced due to external forces, ensuring the stability and safety of the hydraulic cylinder during operation and improving the reliability of equipment operation.

[0014] 2. This hydraulic cylinder with a locking structure allows the arc-shaped scraper to promptly remove dust, oil, and other impurities adhering to the piston rod surface during piston rod extension and retraction, preventing impurities from entering the hydraulic cylinder and avoiding wear on the piston rod surface or seals due to impurity particles. This effectively protects the sealing performance of the piston rod and hydraulic cylinder, reduces the probability of equipment failure, extends the service life of the hydraulic cylinder, and lowers equipment maintenance costs. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the front structure of this utility model;

[0016] Figure 2 This is a front sectional view of the present invention;

[0017] Figure 3 This is a front sectional view of the locking mechanism of this utility model;

[0018] Figure 4 This is a schematic diagram of the sliding hole and sliding rod of this utility model.

[0019] In the diagram: 1. Hydraulic cylinder body; 2. Locking mechanism; 201. Fixing plate; 202. Frame; 203. Slide groove one; 204. Slider one; 205. Clamping arm; 206. Locking block; 207. Slide rod; 208. Slide groove two; 209. Slider two; 210. Iron block; 211. Spring; 212. Electromagnet; 213. Sliding hole; 3. Cleaning mechanism; 301. Bracket; 302. Arc-shaped scraper. Detailed Implementation

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "several" means two or more, unless otherwise explicitly specified.

[0024] Please see Figure 1-4One embodiment of this utility model is as follows: a hydraulic cylinder with a locking structure includes a hydraulic cylinder body 1, on which a locking mechanism 2 is provided; the locking mechanism 2 includes: a fixing plate 201, which is fixedly sleeved on the outer wall of the hydraulic cylinder body 1; a frame 202 is fixedly connected to the bottom of the fixing plate 201; the frame 202 is arranged in an "L" shape; two sliders 204 are slidably connected to the right side of the frame 202; a groove 203 is opened on the right side of the frame 202; the two sliders 204 are slidably connected to the inner wall of the groove 203 respectively; and the right side of each slider 204... Each of the two clamping arms 205 is fixedly connected to a clamping arm 205. Locking blocks 206 are fixedly connected to the opposite faces of the two clamping arms 205. Both locking blocks 206 are arc-shaped and positioned opposite each other. A sliding rod 207 is fixedly connected to the bottom of each slider 204. A second sliding groove 208 is provided at the bottom of the frame 202. A second slider 209 is slidably connected to the inner wall of the second sliding groove 208. An iron block 210 is fixedly connected to the bottom of the second slider 209. A spring 211 is fixedly connected to the left side of the second slider 209. The other end of the spring 211 is fixedly connected to the inner wall of the second sliding groove 208. The movement of the iron block 210 drives the second slider 209. 09. Compression spring 211, after electromagnet 212 is de-energized, pushes slider 209 along the inner wall of slide groove 208 under its own elastic force, thereby causing slider 209 to drive iron block 210 to reset, thereby causing locking block 206 to release the piston rod of hydraulic cylinder body 1, thus releasing the locked state. Electromagnet 212 is fixedly connected to the bottom of frame 202 and is located on the left side of iron block 210. Two sliding holes 213 are opened on the top of iron block 210. The two sliding holes 213 are arranged in a figure-eight shape. The outer walls of two sliding rods 207 are slidably connected to the two sliding holes 213 respectively. When magnet 212 is energized, it generates magnetic force to attract iron block 210. The movement of iron block 210 causes slide rod 207 to slide along the inner wall of slide hole 213, thereby causing iron block 210 to drive slide rod 207 to move. This causes slide rod 207 to drive slider 204 to slide along the inner wall of slide groove 203. The movement of slider 204 causes clamping arm 205 and locking block 206 to move, thereby causing the two locking blocks 206 to move relative to each other and clamp and lock the piston rod of hydraulic cylinder body 1. This effectively prevents the piston rod from being displaced due to external force, ensuring the stability and safety of hydraulic cylinder during operation and improving the reliability of equipment operation.

[0025] Working principle: When the electromagnet 212 is energized, it generates a magnetic force to attract the iron block 210. The movement of the iron block 210 causes the slide rod 207 to slide along the inner wall of the slide hole 213. This causes the iron block 210 to drive the slide rod 207 to move, which in turn causes the slide rod 207 to drive the slider 204 to slide along the inner wall of the slide groove 203. The movement of the slider 204 causes the clamping arm 205 and the locking block 206 to move, which causes the two locking blocks 206 to move relative to each other and clamp and lock the piston rod of the hydraulic cylinder body 1, effectively preventing the piston rod from being displaced by external force. At the same time, the movement of the iron block 210 causes the slider 209 to compress the spring 211. After the electromagnet 212 is de-energized, the spring 211 pushes the slider 209 to slide along the inner wall of the slide groove 208, which causes the slider 209 to drive the iron block 210 to reset. This causes the locking block 206 to release the piston rod of the hydraulic cylinder body 1, thereby releasing the locked state.

[0026] Please see Figure 1-4 Based on the above embodiments, in another embodiment of this utility model, a cleaning mechanism 3 is provided on the fixed plate 201. The cleaning mechanism 3 includes a bracket 301, which is fixedly connected to the bottom of the fixed plate 201. The bracket 301 is arranged in an "L" shape. An arc-shaped scraper 302 is fixedly connected to one end of the bracket 301 away from the fixed plate 201. The inner arc surface of the arc-shaped scraper 302 is in contact with the outer wall of the piston rod of the hydraulic cylinder body 1. There are two sets of cleaning mechanisms 3, which are arranged opposite to each other at the bottom of the fixed plate 201. During the extension and retraction of the piston rod, the arc-shaped scraper 302 can promptly scrape off dust, oil and other impurities attached to the surface of the piston rod, preventing impurities from entering the hydraulic cylinder. This avoids wear on the piston rod surface or seals due to impurity particles, effectively protecting the sealing performance of the piston rod and the hydraulic cylinder, reducing the probability of equipment failure, extending the service life of the hydraulic cylinder, and reducing equipment maintenance costs.

[0027] Working principle: During the extension and retraction of the piston rod, the arc-shaped scraper 302 can promptly scrape off dust, oil and other impurities attached to the surface of the piston rod, preventing impurities from entering the hydraulic cylinder and avoiding wear on the piston rod surface or seals due to impurity particles, thus effectively protecting the sealing performance of the piston rod and hydraulic cylinder.

[0028] It is worth noting that the hydraulic cylinder body 1 and electromagnet 212 in the above embodiments are common devices in the prior art. The models used can be customized according to actual usage requirements. The power supply interface of the electrical equipment in this utility model is connected to the power supply system through a switch (not shown in the figure) and wires (not shown in the figure) to realize its control. The circuit control, specific composition and principle involved are all prior art and are known in the current field. They will not be described in detail here.

[0029] This utility model provides a hydraulic cylinder with a locking structure. There are many methods and approaches to implement this technical solution. The above description is only a preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model. All components not explicitly stated in this embodiment can be implemented using existing technology.

Claims

1. A hydraulic cylinder with a locking structure, comprising a hydraulic cylinder body (1), characterized in that: The hydraulic cylinder body (1) is provided with a locking mechanism (2); The locking mechanism (2) includes: a fixing plate (201), which is fixedly sleeved on the outer wall of the hydraulic cylinder body (1). A frame (202) is fixedly connected to the bottom of the fixing plate (201). The frame (202) is L-shaped. Two sliders (204) are slidably connected to the right side of the frame (202). A clamping arm (205) is fixedly connected to the right side of each slider (204). Locking blocks are fixedly connected to the opposite faces of the two clamping arms (205). (206) Each of the sliders (204) is fixedly connected to a sliding rod (207) at the bottom. The bottom of the frame (202) is provided with a sliding groove (208). The inner wall of the sliding groove (208) is slidably connected to a slider (209). The bottom of the slider (209) is fixedly connected to an iron block (210). The bottom of the frame (202) is fixedly connected to an electromagnet (212) and located to the left of the iron block (210). The top of the iron block (210) is provided with two sliding holes (213).

2. A hydraulic cylinder with a locking structure according to claim 1, characterized in that: The two sliding holes (213) are arranged in a figure-eight shape, and the outer walls of the two sliding rods (207) are slidably connected to the two sliding holes (213) respectively.

3. A hydraulic cylinder with a locking structure according to claim 1, characterized in that: A spring (211) is fixedly connected to the left side of the second slider (209), and the other end of the spring (211) is fixedly connected to the inner wall of the second groove (208).

4. A hydraulic cylinder with a locking structure according to claim 1, characterized in that: Both locking blocks (206) are arc-shaped and arranged opposite each other.

5. A hydraulic cylinder with a locking structure according to claim 1, characterized in that: The frame (202) has a slide groove (203) on its right side, and two sliders (204) are slidably connected to the inner wall of the slide groove (203).

6. A hydraulic cylinder with a locking structure according to claim 1, characterized in that: The fixed plate (201) is provided with a cleaning mechanism (3), which includes a bracket (301). The bracket (301) is fixedly connected to the bottom of the fixed plate (201). The bracket (301) is arranged in an "L" shape. An arc-shaped scraper (302) is fixedly connected to one end of the bracket (301) away from the fixed plate (201). The inner arc surface of the arc-shaped scraper (302) is in contact with the outer wall of the piston rod of the hydraulic cylinder body (1).

7. A hydraulic cylinder with a locking structure according to claim 6, characterized in that: There are two sets of cleaning mechanisms (3), and the two sets of cleaning mechanisms (3) are arranged opposite to each other at the bottom of the fixed plate (201).

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