Hydraulic cylinder protection structure

Abstract

The utility model relates to the technical field of protection, concretely is a kind of hydraulic cylinder protection structure, including hydraulic cylinder body, the upper surface of hydraulic cylinder body is embedded and is connected with piston rod, the end of piston rod is fixedly connected with mounting disc, the upper end of hydraulic cylinder body is fixedly connected with sealing cover, the outer surface of hydraulic cylinder body is fixedly connected with oil pipe, the outer surface of hydraulic cylinder body is nested and is connected with first protective shell, the outer surface of first protective shell is fixedly connected with first connecting column, in the utility model, the cooperation of plug rod and limiting nut realizes the quick disassembly of top cover, by rotating and loosening limiting nut, plug rod is pulled out from second connecting column and first connecting column, so that first protective shell and second protective shell middle part lose limit, greatly improve maintenance efficiency, after rotating and taking out connecting bolt and bolt on hydraulic cylinder body, first protective shell and second protective shell can be separated.

Description

Technical Field

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

[0002] Because hydraulic cylinders operate in complex environments, external debris can impact them. Therefore, some covers for hydraulic cylinders have been developed. Existing technologies also include some solutions, such as the protective cover for a hydraulic cylinder described in publication number CN217558687U, which solves the technical problem that current hydraulic cylinders generally lack protective structures. This cover includes a first corrugated hose and a second corrugated hose. The bottom end of the first corrugated hose is connected to a first positioning component via a support ring, and the top end of the support ring is fixedly connected to the bottom end of the first corrugated hose. Although the above-mentioned device can shield the hydraulic rod of the hydraulic cylinder through the first and second corrugated hoses, the corrugated hoses themselves may twist when they extend and retract, which will affect the extension and retraction of the hydraulic cylinder. In addition, the protective components are installed by welding, which increases the difficulty of disassembling and assembling the protective components. Utility Model Content

[0003] The purpose of this invention is to provide a hydraulic cylinder protection structure to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: A hydraulic cylinder protection structure includes a hydraulic cylinder body, a piston rod is movably connected to the upper surface of the hydraulic cylinder body, an installation plate is fixedly connected to the end of the piston rod, a sealing cover is fixedly connected to the upper end of the hydraulic cylinder body, an oil pipe is fixedly connected to the outer surface of the hydraulic cylinder body, a first protective shell is nested and connected to the outer surface of the hydraulic cylinder body, and a first connecting post is fixedly connected to the outer surface of the first protective shell. A housing connection mechanism is detachably connected to one side surface of the first protective housing. The housing connection mechanism includes a second protective housing, a limiting rail, a rubber protective sleeve, and a sliding strip. The second protective housing is detachably connected to one side surface of the first protective housing. A through groove is formed on the outer surface of the second protective housing. A second connecting post is fixedly connected to the outer surface of the second protective housing. The limiting rail is fixedly connected to the inner surface of the through groove. The rubber protective sleeve is slidably connected to the inside of the limiting rail. The sliding strip is fixedly connected to the outer surface of the rubber protective sleeve. The sliding strip and the limiting rail are slidably connected.

[0005] Furthermore, the lower surfaces of both the first protective shell and the second protective shell are fixedly connected with a first flange half-disc.

[0006] Furthermore, the adjacent surfaces of the first protective shell and the second protective shell are both fixedly connected with limiting half-rings.

[0007] Furthermore, the upper ends of the first protective shell and the second protective shell are detachably connected to a top cover, and the lower surface of the top cover is fixedly connected to an insertion rod, which passes through the first connecting post and the second connecting post, and the end of the insertion rod is threaded with a limit nut.

[0008] Furthermore, the upper surface of the top cover is threaded with connecting bolts, and the top cover is threadedly connected to the first protective shell and the second protective shell through the connecting bolts. A rubber sleeve is embedded in the upper surface of the top cover.

[0009] Furthermore, the upper surface of the top cover is provided with a rod protection mechanism, which includes a corrugated pipe and a limiting rod. The corrugated pipe is fixedly connected to the upper surface of the top cover, and the limiting rod is fixedly connected to the outer surface of the corrugated pipe.

[0010] Furthermore, the limiting rod penetrates the top cover, the first protective shell, and the second protective shell, and can guide the extension and retraction of the bellows.

[0011] Compared with the prior art, the beneficial effects of this utility model are: The insertion rod and the limiting nut work together to enable quick disassembly and assembly of the top cover. By rotating to loosen the limiting nut, the insertion rod can be pulled out from the second connecting post and the first connecting post, thereby removing the limiting nut in the middle of the first protective shell and the second protective shell, which greatly improves maintenance efficiency. After rotating and removing the connecting bolts and the bolts on the hydraulic cylinder body, the first and second protective housings can be separated. The bellows deforms synchronously with the extension and retraction of the piston rod, and the limit rod slides along the through hole to prevent the bellows from twisting laterally, ensuring dust protection for the piston rod throughout its entire stroke and extending the service life of the seals. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional structural diagram of the pole protection mechanism of this utility model; Figure 3 This is a schematic diagram of the disassembled structure of this utility model; Figure 4 This is a schematic diagram of the shell connection mechanism of this utility model.

[0013] In the diagram: 1. Hydraulic cylinder body; 101. Oil pipe; 102. Sealing cover; 103. Piston rod; 104. Mounting plate; 2. First protective housing; 201. First connecting column; 202. First flange half-plate; 3. Housing connection mechanism; 301. Second protective housing; 302. Through groove; 303. Limiting rail; 304. Rubber protective sleeve; 305. Sliding strip; 306. Limiting half-ring; 307. Second connecting column; 4. Insert rod; 401. Limiting nut; 5. Top cover; 501. Rubber sleeve; 502. Connecting bolt; 6. Rod protection mechanism; 601. Bellows; 602. Limiting rod. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1-4 In this embodiment of the present invention, a hydraulic cylinder protection structure includes a hydraulic cylinder body 1, a piston rod 103 is movably connected to the upper surface of the hydraulic cylinder body 1, an installation plate 104 is fixedly connected to the end of the piston rod 103, a sealing cover 102 is fixedly connected to the upper end of the hydraulic cylinder body 1, an oil pipe 101 is fixedly connected to the outer surface of the hydraulic cylinder body 1, a first protective shell 2 is nested and connected to the outer surface of the hydraulic cylinder body 1, and a first connecting post 201 is fixedly connected to the outer surface of the first protective shell 2. A housing connection mechanism 3 is detachably connected to one side surface of the first protective housing 2. The housing connection mechanism 3 includes a second protective housing 301, a limiting rail 303, a rubber protective sleeve 304, and a sliding strip 305. The second protective housing 301 is detachably connected to one side surface of the first protective housing 2. A through groove 302 is opened on the outer surface of the second protective housing 301. A second connecting post 307 is fixedly connected to the outer surface of the second protective housing 301. The limiting rail 303 is fixedly connected to the inner surface of the through groove 302. The rubber protective sleeve 304 is slidably connected to the inside of the limiting rail 303. The sliding strip 305 is fixedly connected to the outer surface of the rubber protective sleeve 304. The sliding strip 305 and the limiting rail 303 are slidably connected.

[0016] Specifically, the oil pipe 101 is used to connect to the external pipeline for conveying hydraulic oil, and is used to convey hydraulic oil to make the piston rod 103 rise and fall to perform work. The first protective shell 2 and the second protective shell 301 form a fully enclosed structure of the hydraulic cylinder body 1, which prevents external objects from directly contacting the outer surface of the hydraulic cylinder body 1 and protects the hydraulic cylinder body 1. The first protective shell 2 and the second protective shell 301 are detachable structures, and can be disassembled if either one is damaged. The rubber protective sleeve 304 is connected to the limit rail 303 in conjunction with the sliding strip 305, and the rubber protective sleeve 304 is nested on the outer surface of the oil pipe 101 to protect the position of the oil pipe 101.

[0017] Example 1 like Figure 1-4 As shown, a first flange half-plate 202 is fixedly connected to the lower surface of both the first protective housing 2 and the second protective housing 301, and a limit half-ring 306 is fixedly connected to the adjacent surfaces of both the first protective housing 2 and the second protective housing 301.

[0018] In this embodiment, the first flange half-plate 202 is fixed to the equipment base by bolts, and the limiting half-rings 306 are interlocked to form a complete limiting ring. A rubber ring is bonded inside the ring, and the rubber ring elastically abuts against the outer wall of the hydraulic cylinder body 1, which not only avoids rigid contact damage to the cylinder body, but also enhances the coaxial positioning accuracy of the protective shell.

[0019] Example 2 Based on Embodiment 1, in order to overcome the problem that it is inconvenient to disassemble the first protective shell 2 and the second protective shell 301 in Embodiment 1.

[0020] like Figure 1-4 As shown, a top cover 5 is detachably connected to the upper end of the first protective housing 2 and the second protective housing 301. A plug rod 4 is fixedly connected to the lower surface of the top cover 5. The plug rod 4 passes through the first connecting post 201 and the second connecting post 307. A limit nut 401 is threadedly connected to the end of the plug rod 4.

[0021] In this embodiment, the cooperation between the insert rod 4 and the limiting nut 401 enables the quick assembly and disassembly of the top cover 5. By rotating and loosening the limiting nut 401, the insert rod 4 can be pulled out from the second connecting post 307 and the first connecting post 201, thereby removing the limiting position in the middle of the first protective housing 2 and the second protective housing 301, which greatly improves maintenance efficiency.

[0022] like Figure 1-4 As shown, the upper surface of the top cover 5 is threaded with a connecting bolt 502. The top cover 5 is threadedly connected to the first protective shell 2 and the second protective shell 301 through the connecting bolt 502. A rubber sleeve 501 is embedded in the upper surface of the top cover 5.

[0023] In this embodiment, the connecting bolt 502 enhances the connection strength between the top cover 5 and the first protective housing 2 and the second protective housing 301, the rubber sleeve 501 avoids rigid contact, and the top cover 5 can prevent dust from entering the bellows 601. Therefore, after rotating the connecting bolt 502 and the bolt on the hydraulic cylinder body 1, the first protective housing 2 and the second protective housing 301 can be separated.

[0024] like Figure 1-4 As shown, a rod protection mechanism 6 is provided on the upper surface of the top cover 5. The rod protection mechanism 6 includes a bellows 601 and a limiting rod 602. The bellows 601 is fixedly connected to the upper surface of the top cover 5, and the limiting rod 602 is fixedly connected to the outer surface of the bellows 601. The limiting rod 602 passes through the top cover 5, the first protective shell 2, and the second protective shell 301, and can guide the extension and retraction of the bellows 601.

[0025] In this embodiment, the bellows 601 deforms synchronously with the extension and retraction of the piston rod 103, and the limiting rod 602 slides along the through hole to prevent the bellows 601 from twisting laterally, ensuring dust protection for the piston rod 103 throughout its entire stroke and extending the service life of the seal.

[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0027] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A hydraulic cylinder protection structure, comprising a hydraulic cylinder body (1), wherein a piston rod (103) is movably connected to the upper surface of the hydraulic cylinder body (1), an mounting plate (104) is fixedly connected to the end of the piston rod (103), a sealing cover (102) is fixedly connected to the upper end of the hydraulic cylinder body (1), an oil pipe (101) is fixedly connected to the outer surface of the hydraulic cylinder body (1), and a first protective shell (2) is nested on the outer surface of the hydraulic cylinder body (1), and a first connecting post (201) is fixedly connected to the outer surface of the first protective shell (2). Its features are, A housing connection mechanism (3) is detachably connected to one side surface of the first protective housing (2), the housing connection mechanism (3) comprising: The second protective housing (301) is detachably connected to one side surface of the first protective housing (2). A through groove (302) is provided on the outer surface of the second protective housing (301). A second connecting post (307) is fixedly connected to the outer surface of the second protective housing (301). The limiting rail (303) is fixedly connected to the inner surface of the through groove (302); A rubber protective sleeve (304) is slidably connected to the inside of the limiting rail (303); A sliding bar (305) is fixedly connected to the outer surface of a rubber protective sleeve (304), and the sliding bar (305) is slidably connected to a limiting rail (303).

2. The hydraulic cylinder protection structure according to claim 1, characterized in that, The lower surfaces of the first protective housing (2) and the second protective housing (301) are both fixedly connected with a first flange half-plate (202).

3. The hydraulic cylinder protection structure according to claim 1 or 2, characterized in that, Limiting half-rings (306) are fixedly connected to the adjacent surfaces of the first protective shell (2) and the second protective shell (301).

4. The hydraulic cylinder protection structure according to claim 1, characterized in that, The upper ends of the first protective shell (2) and the second protective shell (301) are detachably connected to a top cover (5). The lower surface of the top cover (5) is fixedly connected to a plug rod (4). The plug rod (4) passes through the first connecting post (201) and the second connecting post (307). The end of the plug rod (4) is threadedly connected to a limit nut (401).

5. The hydraulic cylinder protection structure according to claim 4, characterized in that, The top cover (5) is threaded with a connecting bolt (502) on its upper surface. The top cover (5) is threaded with the first protective shell (2) and the second protective shell (301) through the connecting bolt (502). A rubber sleeve (501) is embedded in the upper surface of the top cover (5).

6. The hydraulic cylinder protection structure according to claim 5, characterized in that, The upper surface of the top cover (5) is provided with a rod protection mechanism (6), the rod protection mechanism (6) includes: The bellows (601) is fixedly connected to the upper surface of the top cover (5); The limiting rod (602) is fixedly connected to the outer surface of the bellows (601).

7. The hydraulic cylinder protection structure according to claim 6, characterized in that, The limiting rod (602) passes through the top cover (5), the first protective shell (2), and the second protective shell (301), and can guide the extension and retraction of the bellows (601).

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