Hydraulic cylinder protection device

Abstract

The utility model relates to the technical field of hydraulic cylinders, in particular to a hydraulic cylinder protection device. According to the technical scheme, the hydraulic cylinder comprises a hydraulic cylinder body, the hydraulic cylinder body is sleeved with a protection mechanism, the protection mechanism comprises a left cover shell and a right cover shell, two L-shaped clamping grooves are formed in the side, close to the right cover shell, of the left cover shell, two connecting pieces are arranged on the side, close to the left cover shell, of the right cover shell, and the connecting pieces are correspondingly connected with the L-shaped clamping grooves in a clamped mode; rectangular clamping grooves are formed in the front side of the left housing and the front side of the right housing. According to the hydraulic cylinder, the cylinder body of the hydraulic cylinder body is conveniently protected through the protection mechanism, dust and impurities are effectively prevented from invading, the protection performance of the hydraulic cylinder body is remarkably improved, the service life of the hydraulic cylinder body is prolonged, the cleanliness of the piston rod of the hydraulic cylinder body is conveniently kept through the dustproof mechanism, and the service life of the hydraulic cylinder body is prolonged. The sealing damage and leakage risks caused by impurity attachment are reduced, and the working stability and reliability of the hydraulic cylinder body are improved.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic cylinder technology, and in particular to a hydraulic cylinder protection device. Background Technology

[0002] Hydraulic cylinders, as hydraulic actuators that convert hydraulic energy into mechanical energy to achieve linear reciprocating motion (or oscillating motion), are widely used in the hydraulic systems of various machines due to their simple structure and reliable operation. However, in actual use, hydraulic cylinders face many factors that may affect their performance and lifespan.

[0003] Dust, particles, and other impurities in the external environment can easily adhere to the surface of the piston rod in a hydraulic cylinder. During the extension and retraction of the piston rod, these impurities may scratch the coating on the piston rod surface, thereby damaging the sealing structure, leading to hydraulic oil leakage, and reducing the working efficiency and stability of the hydraulic cylinder. For example, in mechanical equipment operating in dusty environments such as mines and construction sites, the probability of hydraulic cylinder failure due to impurity intrusion is significantly increased. Therefore, a hydraulic cylinder protection device is needed. Utility Model Content

[0004] The purpose of this invention is to address the problems existing in the background technology by proposing a hydraulic cylinder protection device.

[0005] The technical solution of this utility model is as follows: A hydraulic cylinder protection device includes a hydraulic cylinder body, and a protective mechanism is sleeved on the outside of the hydraulic cylinder body. The protective mechanism includes a left cover and a right cover. Two L-shaped slots are provided on the side of the left cover near the right cover. Two connecting pieces are provided on the side of the right cover near the left cover. The connecting pieces engage with the L-shaped slots. Rectangular slots are provided on the front sides of both the left and right covers. A set of limiting strips is provided inside each rectangular slot. A set of corner blocks is provided on the outer front ring of both the left and right covers. A common dustproof mechanism is slidably installed inside the two sets of corner blocks. The dustproof mechanism includes a mounting plate. Movable grooves are provided on both the left and right sides of the mounting plate. Each movable slot 1 has a movable slot 2 on one side close to each other, and a movable slot 3 on the rear side of each movable slot 2. Each movable slot 2 has a guide rod inside, and a spring is sleeved on the outer ring of the top of each guide rod. A slider is slidably mounted on the bottom of each guide rod. A connecting block is mounted on the side of each slider that is far apart from each other, and a lever is mounted on the side of each connecting block that is far apart from each other. A T-shaped locking block is mounted on the rear side of each slider. The T-shaped locking block is located inside the rectangular locking groove and is in contact with the limiting strip. A sleeve 1 is mounted on the front side of the mounting plate. A sleeve 2 is slidably mounted on the inner ring of the sleeve 1. A sleeve 3 is slidably mounted on the inner ring of the sleeve 2. A push head is mounted on the front end of the sleeve 3.

[0006] Preferably, the connector has elastic recovery capability.

[0007] Preferably, a positioning groove is provided on the side of the left cover near the right cover, and a positioning block is provided on the side of the right cover near the left cover, and the positioning block is slidably connected to the positioning groove.

[0008] Preferably, the connecting block is slidably connected to the first movable groove, the slider is slidably connected to the second movable groove, and the front end of the T-shaped card block is slidably connected to the third movable groove.

[0009] Preferably, sleeve one, sleeve two, and sleeve three are all arranged in an approximately N-shape.

[0010] Preferably, the inner front ring of the first sleeve is provided with rectangular grooves on both the upper and lower sides, and the outer ring of the second sleeve is provided with rectangular strips on both the upper and lower sides. The rectangular strips are slidably connected to the rectangular grooves. The outer ring of the second sleeve is provided with a limiting ring, which is located at the front end of the rectangular strips.

[0011] Preferably, the inner front ring of the second sleeve is provided with rectangular grooves on both the upper and lower sides, and the outer ring of the third sleeve is provided with rectangular strips on both the upper and lower sides. The rectangular strips are slidably connected to the rectangular grooves. The outer ring of the third sleeve is provided with a limiting ring, which is located at the front end of the rectangular strips.

[0012] Compared with the prior art, the present invention has the following beneficial technical effects:

[0013] This utility model provides protection for the cylinder body of the hydraulic cylinder by setting a protective mechanism, effectively blocking the intrusion of dust and impurities, significantly improving the protective performance of the hydraulic cylinder body, extending its service life, and keeping the piston rod of the hydraulic cylinder body clean by setting a dustproof mechanism, reducing the risk of seal damage and leakage caused by impurities, and improving the working stability and reliability of the hydraulic cylinder body. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0016] Figure 3 This is a cross-sectional structural diagram of the protective mechanism in this utility model;

[0017] Figure 4 for Figure 3 Another perspective illustration;

[0018] Figure 5 This is a partial structural diagram of the present invention;

[0019] Figure 6 This utility model includes a partial structural diagram of the dustproof mechanism.

[0020] Reference numerals in the attached drawings: 1. Hydraulic cylinder body; 2. Protective mechanism; 201. Left cover; 202. Right cover; 203. L-shaped slot; 204. Connecting piece; 205. Rectangular slot; 206. Limiting strip; 207. Corner block; 3. Dustproof mechanism; 301. Mounting plate; 302. Guide rod; 303. Spring; 304. Slider; 305. Connecting block; 306. Pushing block; 307. T-shaped block; 308. Sleeve one; 309. Sleeve two; 310. Sleeve three; 311. Push head; 4. Positioning block; 5. Rectangular strip one; 6. Limiting ring one; 7. Rectangular strip two; 8. Limiting ring two. Detailed Implementation

[0021] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments. Example

[0022] like Figures 1 to 6 As shown, the present invention proposes a hydraulic cylinder protection device, including a hydraulic cylinder body 1, and a protective mechanism 2 sleeved on the outside of the hydraulic cylinder body 1. The protective mechanism 2 includes a left cover 201 and a right cover 202. A positioning groove is provided on the side of the left cover 201 near the right cover 202, and a positioning block 4 is provided on the side of the right cover 202 near the left cover 201. The right cover 202 and the positioning block 4 are fixedly connected, and the positioning block 4 is slidably connected to the positioning groove, which facilitates the guidance of the assembly of the two. Two L-shaped slots 203 are provided on one side of the cover 202. Two connectors 204 are provided on the side of the right cover 202 near the left cover 201. The right cover 202 is fixedly connected to the connectors 204. The connectors 204 have elastic recovery capability. The connectors 204 are engaged with the L-shaped slots 203. By pressing the two connectors 204 toward each other, the two connectors 204 can be deformed and bent inward, so that the connectors 204 can be removed from the inside of the L-shaped slots 203.

[0023] Both the left cover 201 and the right cover 202 have rectangular slots 205 on their front sides. Each rectangular slot 205 contains a set of limiting strips 206, which are fixedly installed inside the slot. The outer front rings of both the left and right covers 201 and 202 have a set of corner blocks 207, which are fixedly connected to the corresponding corner blocks 207. Both sets of corner blocks 207 have a shared dustproof mechanism 3 that slides within them, allowing for dust prevention. Mechanism 3 provides guidance and limiting. The dustproof mechanism 3 includes a mounting plate 301. Movable groove 1 is provided on both the left and right sides of the mounting plate 301. Movable groove 2 is provided on the side of the two movable grooves 1 that are close to each other. Movable groove 3 is provided on the rear side of each movable groove 2. Guide rod 302 is provided inside each movable groove 2. Guide rod 302 is fixedly installed inside the movable groove 2. Spring 303 is sleeved on the outer ring of the top of each of the two guide rods 302. By setting the spring 303, a force can always be applied to the slider 304.

[0024] Each guide rod 302 has a slider 304 slidably mounted at its bottom end. The slider 304 is slidably connected to the second movable groove. A connecting block 305 is provided on the side of each slider 304 that is far apart from each other. The slider 304 and the connecting block 305 are fixedly connected. The connecting block 305 is slidably connected to the first movable groove, facilitating the movement of the connecting block 305. A lever 306 is provided on the side of each connecting block 305 that is far apart from each other. The connecting block 305 and the lever 306 are fixedly connected. By moving the lever 306, the connecting block 305 can be moved. During operation, each slider 304 is provided with a T-shaped locking block 307 on its rear side. The rear side of the slider 304 is fixedly connected to the front side of the T-shaped locking block 307. The front end of the T-shaped locking block 307 is slidably connected to the movable groove 3. The T-shaped locking block 307 is located inside the rectangular groove 205 and fits against the limiting strip 206, which can ensure the stability and quickness of the connection between the dustproof mechanism 3 and the protective mechanism 2. The front side of the mounting plate 301 is provided with a sleeve 308. The front side of the mounting plate 301 is fixedly connected to the rear side of the sleeve 308.

[0025] Sleeve 2 309 is slidably mounted on the inner ring of sleeve 1 308. Rectangular grooves 1 are formed on both the upper and lower sides of the front inner ring of sleeve 1 308. Rectangular strips 1 5 are formed on both the upper and lower sides of the outer ring of sleeve 2 309. Rectangular strips 1 5 are fixedly installed on the outer ring of sleeve 2 309 and are slidably connected to the rectangular grooves 1, facilitating guiding and limiting the contraction of sleeve 2 309. A limiting ring 1 6 is provided on the outer ring of sleeve 2 309 and is fixedly installed on the outer ring of sleeve 2 309. The limiting ring 1 6 is located at... The front end of the rectangular strip 5 is used to limit the sleeve 308 and prevent it from coming off the outer ring of the sleeve 309. The inner ring of the sleeve 309 is slidably provided with the sleeve 310. The upper and lower sides of the front inner ring of the sleeve 309 are provided with rectangular grooves 2. The upper and lower sides of the outer ring of the sleeve 310 are provided with rectangular strips 2 7. The rectangular strips 2 7 are fixedly installed on the outer ring of the sleeve 310. The rectangular strips 2 7 and the rectangular grooves 2 are slidably connected to each other, which facilitates the guiding and limiting of the retraction of the sleeve 310.

[0026] The outer ring of sleeve 310 is provided with a limiting ring 2 8, which is fixedly installed on the outer ring of sleeve 310. The limiting ring 2 8 is located at the front end of rectangular strip 2 7 to prevent sleeve 2 309 from coming off the outer ring of sleeve 310. Sleeve 1 308, sleeve 2 309, and sleeve 310 are all arranged in an approximately N-shape, interlocking with each other for limiting. The front end of sleeve 310 is provided with a push head 311, which is fixedly connected to sleeve 310. The push head 311 is fixedly connected to the front end of the piston rod of hydraulic cylinder body 1, which can be fixed by means of adhesive or screws.

[0027] In this embodiment, when using this device, firstly, the left cover 201 and the right cover 202 are fitted onto the outer ring of the hydraulic cylinder body 1, and pressure is applied to install the connector 204 into the L-shaped slot 203. Then, the positioning block 4 is installed into the positioning groove for front and rear positioning. Next, the mounting plate 301 is installed from the piston rod side of the hydraulic cylinder body 1, aligned with the inside of the corner block 207. Simultaneously, the two levers 306 are moved upwards, causing the T-shaped locking block 307 to align with the rectangular slot 205 without the limiting strip 206 on the front side. The T-shaped locking block 307 is installed at the blocking position. After the T-shaped locking block 307 is installed, the force on the lever block 306 can be released, so that the spring 303 pushes the slider 304 to move the T-shaped locking block 307 to the blocking position of the limit strip 206 inside the rectangular slot 205, ensuring the stability of the connection between the protective mechanism 2 and the dustproof mechanism 3. Then, the push head 311 is fixedly connected to the front end of the piston rod of the hydraulic cylinder body 1, so that the sleeve 1 308, sleeve 2 309, and sleeve 3 310 provide dustproof protection for the piston rod.

[0028] The above-described specific embodiments are merely preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above-described specific embodiments.

Claims

1. A hydraulic cylinder protection device, comprising a hydraulic cylinder body (1), characterized in that: The hydraulic cylinder body (1) is fitted with a protective mechanism (2). The protective mechanism (2) includes a left cover (201) and a right cover (202). The left cover (201) has two L-shaped slots (203) on the side near the right cover (202). The right cover (202) has two connectors (204) on the side near the left cover (201). The connectors (204) are engaged with the L-shaped slots (203). The left cover (201) and the right cover (202) are fitted together. The front side of each of the two covers (201 and 202) is provided with a rectangular slot (205), and each rectangular slot (205) is provided with a set of limiting strips (206). The front outer ring of the left cover (201) and the right cover (202) is provided with a set of corner blocks (207). The same dustproof mechanism (3) is slidably arranged inside the two sets of corner blocks (207). The dustproof mechanism (3) includes a mounting plate (301). The left and right sides of the mounting plate (301) are provided with movable grooves. The two movable grooves are close to each other. Each of the two guide rods (302) has a second movable groove on one side, and a third movable groove on the rear side of each second movable groove. Each second movable groove has a guide rod (302) inside. The top outer ring of each guide rod (302) is fitted with a spring (303). The bottom end of each guide rod (302) is slidably fitted with a slider (304). The sides of the two sliders (304) that are far apart from each other are fitted with a connecting block (305). The sides of the two connecting blocks (305) that are far apart from each other are fitted with a lever (306). Each slider (304) is provided with a T-shaped locking block (307) on its rear side. The T-shaped locking block (307) is located inside the rectangular slot (205) and is in contact with the limiting strip (206). The mounting plate (301) is provided with a sleeve one (308) on its front side. The inner ring of the sleeve one (308) is slidably provided with a sleeve two (309). The inner ring of the sleeve two (309) is slidably provided with a sleeve three (310). The front end of the sleeve three (310) is provided with a push head (311).

2. The hydraulic cylinder protection device according to claim 1, characterized in that, The connector (204) has elastic recovery capability.

3. A hydraulic cylinder protection device according to claim 1, characterized in that, The left cover (201) has a positioning groove on the side near the right cover (202), and the right cover (202) has a positioning block (4) on the side near the left cover (201). The positioning block (4) is slidably connected to the positioning groove.

4. A hydraulic cylinder protection device according to claim 1, characterized in that, The connecting block (305) is slidably connected to the first movable groove, the slider (304) is slidably connected to the second movable groove, and the front end of the T-shaped card block (307) is slidably connected to the third movable groove.

5. A hydraulic cylinder protection device according to claim 1, characterized in that, The sleeves 1 (308), 2 (309), and 3 (310) are all arranged in an approximately N-shape.

6. A hydraulic cylinder protection device according to claim 1, characterized in that, The inner front ring of the first sleeve (308) is provided with rectangular grooves on both the upper and lower sides. The outer ring of the second sleeve (309) is provided with rectangular strips (5) on both the upper and lower sides. The rectangular strips (5) are slidably connected to the rectangular grooves. The outer ring of the second sleeve (309) is provided with a limiting ring (6), which is located at the front end of the rectangular strips (5).

7. A hydraulic cylinder protection device according to claim 1, characterized in that, The inner front ring of the second sleeve (309) is provided with rectangular grooves on both the upper and lower sides. The outer ring of the third sleeve (310) is provided with rectangular strips (7) on both the upper and lower sides. The rectangular strips (7) are slidably connected to the rectangular grooves. The outer ring of the third sleeve (310) is provided with a limiting ring (8), which is located at the front end of the rectangular strips (7).

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