Piston hydraulic cylinder

Abstract

This utility model discloses a piston-type hydraulic cylinder, including a hydraulic cylinder body and a cleaning mechanism. A piston rod is slidably disposed within the hydraulic cylinder body. The cleaning mechanism includes a connecting part and a cleaning part surrounding the piston rod. The connecting part is threadedly connected to the hydraulic cylinder body, and a first cleaning component and a second cleaning component are mounted on the cleaning part. The first and second cleaning components cooperate to clean dust from the piston rod surface. The cleaning part is connected to the connecting part by several bolts, facilitating the replacement of the first and second cleaning components. Both the first and second cleaning components are sponges, which can reduce wear on the sidewalls of the piston rod. This utility model can clean the surface of the piston rod, making it less likely for surface dust to wear the hydraulic cylinder seals during the reciprocating extension and retraction of the piston rod. It also reduces the probability of dust entering the hydraulic cylinder, thereby reducing the failure rate of the piston-type hydraulic cylinder.

Description

Technical Field

[0001] This utility model belongs to the field of hydraulic cylinder technology, specifically relating to a piston-type hydraulic cylinder. Background Technology

[0002] A piston hydraulic cylinder consists of a piston, cylinder body, gas guiding device, sealing elements, and hydraulic lines. When hydraulic oil enters the gas chamber from the oil pipe and the pressure in the gas chamber is controlled by the valve, the piston is pushed forward or backward, thus controlling the object. Piston hydraulic cylinders have advantages such as high torque and output force, good stability, small size, and flexible operation, and are widely used in various mechanical fields, such as cranes, forklifts, derricks, metallurgical machinery, papermaking machinery, and marine machinery.

[0003] When piston-type hydraulic cylinders are used in dusty environments, dust particles may adhere to the surface of the piston rod. Existing piston-type hydraulic cylinders lack cleaning devices for the piston rod surface, causing dust particles on the surface of the piston rod to wear the hydraulic cylinder's seals during reciprocating extension and retraction. Some dust particles may even enter the hydraulic cylinder, thereby increasing the failure rate of the piston-type hydraulic cylinder.

[0004] Therefore, in order to address the aforementioned technical problems, it is necessary to provide a piston-type hydraulic cylinder.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0006] The purpose of this invention is to provide a piston-type hydraulic cylinder that can solve the problem of dust on the piston rod surface being difficult to clean.

[0007] To achieve the above objectives, the technical solution provided by a specific embodiment of this utility model is as follows:

[0008] A piston-type hydraulic cylinder includes a hydraulic cylinder body and a cleaning mechanism. A piston rod is slidably disposed within the hydraulic cylinder body. The cleaning mechanism includes a connecting portion and a cleaning portion surrounding the piston rod. The connecting portion is threadedly connected to the hydraulic cylinder body. A first cleaning component and a second cleaning component are mounted on the cleaning portion. The first and second cleaning components cooperate to clean dust from the surface of the piston rod.

[0009] In one or more embodiments of this utility model, the cleaning part is connected to the connecting part by a number of bolts, which facilitates the replacement of the first cleaning part and the second cleaning part.

[0010] In one or more embodiments of this utility model, both the first cleaning component and the second cleaning component are sponges, which can reduce wear on the piston rod sidewall while ensuring the cleaning effect on the piston rod sidewall, making it difficult for dust to adhere.

[0011] In one or more embodiments of this utility model, the connecting portion is provided with a storage cavity containing lubricating fluid. The lubricating fluid can wet the first cleaning component, thereby improving its cleaning effect on the piston rod sidewall and also increasing the lubrication effect of the piston rod during extension and retraction.

[0012] In one or more embodiments of this utility model, the cleaning section is provided with a temporary storage chamber, and a capillary tube is connected between the storage chamber and the temporary storage chamber, with one end of the capillary tube inserted into the temporary storage chamber. Lubricating fluid in the storage chamber enters the temporary storage chamber under the action of the capillary tube.

[0013] In one or more embodiments of this utility model, the sidewall of the temporary storage cavity is provided with a plurality of circumferentially evenly distributed through holes, and the first cleaning component covers the outside of the through holes. The lubricating fluid in the temporary storage cavity can wet the first cleaning component through the through holes.

[0014] In one or more embodiments of this utility model, a replenishment tube is connected to the connecting part, and the storage cavity is connected to the outside through the replenishment tube, so as to facilitate the replenishment of lubricating fluid into the storage cavity through the replenishment tube.

[0015] In one or more embodiments of this utility model, the replenishment tube is provided with a plug for sealing the replenishment tube.

[0016] In one or more embodiments of this utility model, the side wall of the connecting part is provided with a receiving groove, and one end of the supplementary tube is located in the receiving groove, so that the supplementary tube is not easy to protrude from the connecting part and is not easy to affect the normal use of the hydraulic cylinder body. At the same time, it also makes the supplementary tube less likely to be damaged by collision.

[0017] In one or more embodiments of this utility model, a transparent plate is provided on the side wall of the connecting part, the transparent plate corresponding to the storage cavity, for observing the capacity of the lubricating fluid in the storage cavity so as to replenish it in time.

[0018] Compared with the prior art, the piston-type hydraulic cylinder of this utility model can clean the surface of the piston rod, so that when the piston rod reciprocates, the surface dust is less likely to cause wear to the hydraulic cylinder seal ring. At the same time, it can also reduce the probability of dust entering the hydraulic cylinder, thereby reducing the failure rate of the piston-type hydraulic cylinder. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a perspective view of a piston-type hydraulic cylinder according to one embodiment of the present invention;

[0021] Figure 2 for Figure 1 Schematic diagram of the structure at point A in the middle;

[0022] Figure 3 This is a partial structural cross-sectional view of a piston-type hydraulic cylinder according to one embodiment of the present invention;

[0023] Figure 4 for Figure 3 Schematic diagram of the structure at point B;

[0024] Figure 5 for Figure 3 Schematic diagram of the structure at point C.

[0025] Explanation of key figure labels:

[0026] 1-Hydraulic cylinder body, 101-Piston rod, 2-Cleaning mechanism, 201-Connecting part, 202-Cleaning part, 203-First cleaning component, 204-Second cleaning component, 205-Storage chamber, 206-Lubricating fluid, 207-Temporary storage chamber, 208-Capillary tube, 209-Replenishment tube, 210-Receiving slot, 211-Transparent plate. Detailed Implementation

[0027] To enable those skilled in the art to better understand the technical solutions in this disclosure, the technical solutions in the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments in this disclosure, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this disclosure.

[0028] like Figures 1 to 5As shown, a piston-type hydraulic cylinder according to one embodiment of the present invention includes a hydraulic cylinder body 1 and a cleaning mechanism 2. A piston rod 101 is slidably disposed inside the hydraulic cylinder body 1. The cleaning mechanism 2 includes a connecting portion 201 and a cleaning portion 202 surrounding the piston rod 101. The connecting portion 201 is threadedly connected to the hydraulic cylinder body 1. A first cleaning component 203 and a second cleaning component 204 are mounted on the cleaning portion 202. The first cleaning component 203 and the second cleaning component 204 cooperate to clean dust from the surface of the piston rod 101.

[0029] During the reciprocating extension and retraction of the piston rod 101, the sidewall of the piston rod 101 comes into frictional contact with the first cleaning element 203 and the second cleaning element 204 on the cleaning part 202. The frictional action of the first cleaning element 203 and the second cleaning element 204 on the sidewall of the piston rod 101 provides a dual cleaning effect, removing any dust that may adhere to the surface of the piston rod 101, thus achieving a cleaning effect. The connecting part 201 is not only used to install the cleaning part 202, but also to seal the port of the hydraulic cylinder body 1, improving the overall sealing effect of the hydraulic cylinder body 1.

[0030] The hydraulic cylinder body 1 and piston rod 101 used in this application are both existing technologies, and the connections between the various components of the hydraulic cylinder body 1 and piston rod 101 are also existing technologies. Therefore, their connections and working principles will not be described in detail here.

[0031] The cleaning part 202 is connected to the connecting part 201 by several bolts, which facilitates the replacement of the first cleaning part 203 and the second cleaning part 204.

[0032] Preferably, both the first cleaning component 203 and the second cleaning component 204 are sponges, which can reduce wear on the side wall of the piston rod 101, while also ensuring the cleaning effect on the side wall of the piston rod 101, making it difficult for dust to adhere.

[0033] like Figures 1 to 5 As shown, the connecting part 201 is provided with a storage cavity 205, which contains lubricating fluid 206. The lubricating fluid 206 can moisten the first cleaning component 203, thereby improving the cleaning effect of the first cleaning component 203 on the dust on the side wall of the piston rod 101, and also increasing the lubrication effect of the piston rod 101 during extension and retraction.

[0034] Preferably, lubricant 206 is lubricating oil, which can be purchased and used directly.

[0035] The cleaning section 202 includes a temporary storage chamber 207. A capillary tube 208 connects the storage chamber 205 and the temporary storage chamber 207, with one end of the capillary tube 208 inserted into the temporary storage chamber 207. The lubricating fluid 206 in the storage chamber 205 enters the temporary storage chamber 207 under the action of the capillary tube 208.

[0036] In addition, the temporary storage cavity 207 has several circumferentially evenly distributed through holes on its sidewall, and the first cleaning component 203 covers the outside of these through holes. The lubricating fluid 206 inside the temporary storage cavity 207 can wet the first cleaning component 203 through the through holes. When the piston rod 101 reciprocates, the relatively wetted first cleaning component 203 provides a better cleaning effect. Simultaneously, the first cleaning component 203, with its lubricating fluid 206, can also lubricate the sidewall of the piston rod 101, reducing wear on the sidewall of the piston rod 101.

[0037] like Figures 1 to 5 As shown, a replenishment tube 209 is connected to the connecting part 201, and the storage cavity 205 is connected to the outside through the replenishment tube 209, which facilitates the replenishment of lubricating fluid 206 into the storage cavity 205 through the replenishment tube 209. A plug is provided on the replenishment tube 209 for sealing the replenishment tube 209.

[0038] like Figures 1 to 5 As shown, the side wall of the connecting part 201 is provided with a storage groove 210, and one end of the supplement tube 209 is located in the storage groove 210, so that the supplement tube 209 is not likely to protrude from the connecting part 201 and is not likely to affect the normal use of the hydraulic cylinder body 1. At the same time, it also makes the supplement tube 209 less likely to be damaged by collision.

[0039] The connecting part 201 has a transparent plate 211 on its side wall, which corresponds to the storage cavity 205 and is used to observe the capacity of the lubricating fluid 206 in the storage cavity 205 so that it can be replenished in time.

[0040] In practical use, when the piston rod 101 retracts into the hydraulic cylinder body 1, it will come into frictional contact with the first cleaning component 203 and the second cleaning component 204. The friction between the first cleaning component 203 and the second cleaning component 204 and the sidewall of the piston rod 101 provides a dual cleaning effect, removing any dust that may adhere to the surface of the piston rod 101. This prevents the sealing rings inside the hydraulic cylinder body 1 from wearing out, ensuring their normal service life. It also reduces the probability of dust entering the hydraulic cylinder body 1, thus lowering the overall failure rate of the hydraulic cylinder.

[0041] In addition, the lubricant 206 in the storage cavity 205 will also enter the temporary storage cavity 207 under the action of the capillary tube 208. The lubricant 206 in the temporary storage cavity 207 can then wet the first cleaning component 203 through the through hole. The relatively wet first cleaning component 203 can improve the dust removal effect on the surface of the piston rod 101, and at the same time, it also has a certain lubricating effect on the surface of the piston rod 101.

[0042] It will be apparent to those skilled in the art that this disclosure is not limited to the details of the exemplary embodiments described above, and that this disclosure can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of this disclosure is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this disclosure. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0043] 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 piston-type hydraulic cylinder, characterized in that, include: A hydraulic cylinder body, wherein a piston rod is slidably disposed within the hydraulic cylinder body; The cleaning mechanism includes a connecting part and a cleaning part surrounding the piston rod. The connecting part is threadedly connected to the hydraulic cylinder body. The cleaning part is equipped with a first cleaning component and a second cleaning component, which cooperate to clean dust from the surface of the piston rod.

2. A piston-type hydraulic cylinder according to claim 1, characterized in that, The cleaning part is connected to the connecting part by a number of bolts.

3. A piston-type hydraulic cylinder according to claim 1, characterized in that, Both the first and second cleaning components are sponges.

4. A piston-type hydraulic cylinder according to claim 1, characterized in that, The connecting part is provided with a storage cavity, which contains lubricating fluid.

5. A piston-type hydraulic cylinder according to claim 4, characterized in that, The cleaning section is provided with a temporary storage chamber, and a capillary tube is connected between the storage chamber and the temporary storage chamber, with one end of the capillary tube inserted into the temporary storage chamber.

6. A piston-type hydraulic cylinder according to claim 5, characterized in that, The temporary storage cavity has several circumferentially evenly distributed through holes on its sidewall, and the first cleaning component covers the outside of the through holes.

7. A piston-type hydraulic cylinder according to claim 6, characterized in that, A supplementary tube is connected to the connecting part, and the storage cavity is connected to the outside through the supplementary tube.

8. A piston-type hydraulic cylinder according to claim 7, characterized in that, The replenishment tube is equipped with a plug.

9. A piston-type hydraulic cylinder according to claim 7, characterized in that, The side wall of the connecting part is provided with a storage groove, and one end of the supplementary tube is located in the storage groove.

10. A piston-type hydraulic cylinder according to claim 9, characterized in that, The side wall of the connecting part is provided with a transparent plate, which corresponds to the storage cavity.

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