Oil cylinder protection device

Abstract

The utility model discloses an oil cylinder protection device which comprises an assembling plate and a pressing plate, the assembling plate is provided with a through hole, a filter screen is installed at the position of the through hole, the filter screen is laid on one face of the assembling plate, the filter screen covers the through hole of the assembling plate, the pressing plate is arranged around the through hole of the assembling plate, and the pressing plate is arranged on the other face of the assembling plate. The pressing plate is detachably connected with the assembling plate, the filter screen is arranged between the pressing plate and the assembling plate, the filter screen is a steel wire mesh, and due to the fact that the pressing plate is detachably connected with the assembling plate, the filter screen assembled between the pressing plate and the assembling plate is easier to replace or clean. Compared with a rigid protective net, the steel wire mesh can buffer flying stones or other objects and reduce impact force, so that the oil cylinder is effectively protected against direct damage, the flexible steel wire mesh is not prone to permanent deformation or damage caused by impact in long-term use due to good elasticity and restorability, and the service life of the oil cylinder is prolonged. Compared with a traditional rigid protective net, the protective net is more durable.

Description

Technical Field

[0001] The utility model relates to the technical field of excavators, in particular to an oil cylinder protection device. Background Art

[0002] In industrial excavators, the hydraulic cylinder plays a vital role as an actuator. It comprises key components such as the piston assembly, seals, and valves controlling the flow of hydraulic oil. It plays an indispensable role in the up and down movement of the excavator's boom. However, excavators often operate in complex and changing environments, and hard objects such as gravel often fly towards the cylinder from in front of the cab (otherwise protected by other structures), posing a potential threat to the cylinder. Therefore, a cylinder protection device is necessary to prevent damage during operation.

[0003] The existing technology discloses an excavator protection device (CN216475303U), wherein the oil cylinder protection net is usually formed into an integral structure in the form of welding, that is, the modified protection net is welded into one piece by two curved plates and two straight plates, and the protection net is composed of a honeycomb hole on the plate in the middle, wherein the part of the plate with the honeycomb hole plays the greatest protective role, but the plate is a rigid body and is easily deformed and damaged after long-term collision with stones. Once replaced, the entire protection net needs to be replaced, which has a poor protective effect and is less economical. Utility Model Content

[0004] In order to overcome at least one of the defects of the prior art described above, the present invention provides an oil cylinder protection device, which can solve the problem that the rigid plate is easily deformed and damaged due to the honeycomb, and the problem that the entire plate needs to be replaced after damage.

[0005] The technical solution adopted by the present invention to solve the problem is:

[0006] An oil cylinder protection device, comprising:

[0007] An assembly plate, wherein the assembly plate is provided with a through hole, a filter screen is installed at the through hole, the filter screen is laid on one side of the assembly plate, and the filter screen covers the through hole of the assembly plate;

[0008] A pressing plate, the pressing plate being arranged along the edge of the through hole of the assembly plate, the pressing plate being detachably connected to the assembly plate, and the filter being arranged between the pressing plate and the assembly plate;

[0009] Wherein, the filter screen is a steel wire mesh.

[0010] The above solution, thanks to the detachable connection between the pressure plate and the assembly plate, makes it easier to replace or clean the filter screen installed between the pressure plate and the assembly plate. Compared to rigid protective nets, wire mesh can cushion flying stones and other objects, reducing impact force and effectively protecting the cylinder from direct damage. Furthermore, due to its excellent elasticity and resilience, the flexible wire mesh is less likely to deform or damage permanently due to repeated impacts over long-term use, making it more durable than traditional rigid protective nets.

[0011] Furthermore, the assembly plate is provided with a first assembly hole, the pressure plate is provided with a second assembly hole corresponding to the first assembly hole, and fixing parts are provided at the first assembly hole and the second assembly hole. The fixing parts connect the first assembly hole and the second assembly hole to clamp the wire mesh between the assembly plate and the pressure plate.

[0012] By adopting the above solution, the pressing plate and the assembly plate are connected by the fixing parts, so that the wire mesh clamped between the pressing plate and the assembly plate is easy to disassemble and assemble, which is convenient for daily maintenance and replacement of the wire mesh.

[0013] Furthermore, a plurality of the first assembly holes are provided on the assembly plate, the pressure plate is provided with second assembly holes corresponding in number and position to the first assembly holes, and each group of the first assembly holes and the second assembly holes is provided with the fixing piece.

[0014] By adopting the above solution, multiple fixing points ensure that the connection between the assembly plate and the pressure plate is more firm and stable, preventing the wire mesh from being displaced or loosened due to vibration or external impact during use, thereby improving the reliability of the overall structure.

[0015] Furthermore, the fixing member includes a screw and a gasket, the gasket is sleeved on the screw, and the screw is sequentially passed through the second assembly hole, the wire mesh and the first assembly hole.

[0016] By adopting the above solution, the combination of screws and washers can achieve a stable connection between the assembly plate and the pressure plate, ensuring that the wire mesh will not easily fall off or shift during use. Furthermore, the screws are sequentially passed through the second assembly hole, the wire mesh, and the first assembly hole, and secured by the washers, forming a stable connection between the wire mesh and the assembly plate, ensuring that the wire mesh will not easily fall off even under external forces.

[0017] Furthermore, the edge of the steel mesh extends beyond the overlapping range of the pressing plate and the assembly plate.

[0018] By adopting this solution, the extended edge of the wire mesh not only increases the mesh's fixed surface area but also provides additional fixing points. If the wire mesh breaks due to impact or wear, the excess wire outside the screws can continue to hold the mesh in place, preventing the entire mesh from failing due to a single point of damage.

[0019] That is, in the extended edge of the wire mesh, even if the steel wire near the screw is damaged, the outer steel wire can still provide additional limiting effect to prevent further damage or displacement of the wire mesh, thereby enhancing the reliability of the entire protective device.

[0020] Furthermore, mounting holes are provided on both sides of the assembly plate.

[0021] The aforementioned design, with mounting holes on both sides of the assembly plate, simplifies the installation of the guard on the excavator cylinder. These holes allow the guard to be easily secured in place, ensuring it is securely mounted around the cylinder, providing effective protection.

[0022] Furthermore, the pressure plate includes a first pressure plate, a second pressure plate, a third pressure plate and a fourth pressure plate. The first pressure plate, the second pressure plate, the third pressure plate and the fourth pressure plate are connected end to end in sequence and arranged around the outside of the through hole, and are all detachably connected to the assembly plate.

[0023] By adopting this solution, the segmented arrangement allows the platens to be processed separately during the manufacturing process, reducing the difficulty and cost of producing a single large platen, making the production process simpler and more efficient. If a section of the platen is damaged, it can be replaced individually without replacing the entire platen, reducing maintenance costs and improving economic efficiency.

[0024] Furthermore, the assembly plate and the through hole are both rectangular.

[0025] By adopting the above solution, the position of the cylinder that needs to be protected is usually a rectangular area, so the assembly plate and the through hole are designed to be rectangular to better match the shape of the cylinder, ensuring that the protective device can fully cover the area that needs to be protected and provide the most effective protection.

[0026] Furthermore, the edges of the steel mesh are provided with metal edging.

[0027] By adopting this solution, the metal edging provides a certain degree of rigidity to the flexible wire mesh, making it easier to position during installation and avoiding the difficulty of fixing it due to the inherent flexibility of the material. The metal edging also helps to maintain the shape of the wire mesh, ensuring that the wire mesh can be accurately placed in the intended position during installation, thereby improving installation accuracy.

[0028] In addition, the metal edging can protect the edges of the wire mesh from damage, especially when it comes into contact with the assembly plate or other components during installation, avoiding damage to the edges due to friction.

[0029] Furthermore, the assembly plate is provided with a positioning convex edge, and the positioning convex edge abuts against the metal edging.

[0030] By adopting the above solution, the coordinated use of the positioning convex edge and the metal edging can ensure that the wire mesh can be accurately positioned during installation, avoiding the problem of inadequate protection caused by inaccurate positioning, and the setting of the positioning convex edge can also improve installation efficiency.

[0031] In summary, the oil cylinder protection device provided by the present invention has the following technical effects:

[0032] 1. Due to the detachable connection between the pressing plate and the assembly plate, it is easier to replace or clean the filter screen assembled between the pressing plate and the assembly plate.

[0033] 2. Compared with rigid protective nets, wire mesh can cushion flying stones or other objects, reduce impact force, and thus effectively protect the oil cylinder from direct damage. In addition, due to its good elasticity and recovery, flexible wire mesh is not easily permanently deformed or damaged by repeated impacts during long-term use, and is more durable than traditional rigid protective nets. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a schematic diagram of the structure of the utility model when it is assembled on the oil cylinder;

[0035] Figure 2 This is a schematic diagram of the partial explosion structure of the utility model;

[0036] Figure 3 This is a schematic diagram of the top view of the structure of the utility model;

[0037] Figure 4 This is a schematic diagram of the structure of the positioning convex edge state of the utility model.

[0038] Among them, the meanings of the figure marks are as follows: 1. Assembly plate; 11. Through hole; 12. Filter; 121. Metal edging; 13. First assembly hole; 14. Mounting hole; 15. Positioning convex edge; 2. Pressure plate; 21. Second assembly hole; 22. First pressure plate; 23. Second pressure plate; 24. Third pressure plate; 25. Fourth pressure plate; 3. Fixing part; 31. Screw; 32. Gasket; 4. Cylinder. DETAILED DESCRIPTION

[0039] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described and discussed below in conjunction with the drawings of the present invention. Obviously, what is described here is only a part of the examples of the present invention, not all the examples. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0040] In order to facilitate the understanding of the embodiments of the present invention, the following will be further explained with reference to specific embodiments as examples in conjunction with the drawings, and each embodiment does not constitute a limitation on the embodiments of the present invention.

[0041] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the present invention.

[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0043] See Figures 1-4 The utility model discloses an oil cylinder protection device, including an assembly plate 1 and a pressure plate 2. The assembly plate 1 is provided with a through hole 11, and a filter screen 12 is installed at the through hole 11. The filter screen 12 is laid on one side of the assembly plate 1, and the filter screen 12 covers the through hole 11 of the assembly plate 1. The pressure plate 2 is arranged around the through hole 11 of the assembly plate 1. The pressure plate 2 and the assembly plate 1 are detachably connected. The filter screen 12 is arranged between the pressure plate 2 and the assembly plate 1, wherein the filter screen 12 is a steel wire mesh.

[0044] Specifically, the assembly plate 1 is provided with a through hole 11 for covering a filter screen 12 at the through hole 11. The filter screen 12 is laid on one side of the assembly plate 1, i.e., the side facing the through hole 11. The pressure plate 2 is arranged around the through hole 11 of the assembly plate 1. The pressure plate 2 and the assembly plate 1 are detachably connected. The filter screen 12 is arranged between the pressure plate 2 and the assembly plate 1. The edge of the filter screen 12 is clamped by the contact between the pressure plate 2 and the assembly plate 1, thereby completing the fixing of the filter screen 12. The filter screen 12 is a steel mesh, which is a flexible steel mesh. Compared with a rigid protective mesh, the flexible steel mesh can buffer flying stones or other objects, reduce impact force, and thus effectively protect the oil cylinder 4 from direct damage. In addition, due to its good elasticity and resilience, the flexible steel mesh is not easily permanently deformed or damaged by repeated impacts during long-term use, and is more durable than traditional rigid protective mesh. The detachable connection between the pressure plate 2 and the assembly plate 1 can be achieved by screwing, snapping, or other detachable connection methods, which are not limited here.

[0045] See Figure 2 and Figure 3 As shown, in some embodiments, the assembly plate 1 is provided with a first assembly hole 13, and the pressing plate 2 is provided with a second assembly hole 21 corresponding to the first assembly hole 13. A fixing member 3 is provided at the first assembly hole 13 and the second assembly hole 21. The fixing member 3 connects the first assembly hole 13 and the second assembly hole 21 to clamp the wire mesh between the assembly plate 1 and the pressing plate 2. The fixing member 3 can be a detachable structure such as a screw 31 or a rivet to achieve a detachable connection between the assembly plate 1 and the pressing plate 2.

[0046] See Figure 2 and Figure 3 As shown, in some embodiments, a plurality of first assembly holes 13 are provided on the assembly plate 1, and a second assembly hole 21 corresponding in number and position to the first assembly holes 13 is provided on the pressure plate 2, and a fixing part 3 is provided at each group of first assembly holes 13 and second assembly holes 21.

[0047] Specifically, the pressure plate 2 is provided with a plurality of second assembly holes 21, and the assembly plate 1 is provided with first assembly holes 13 corresponding in number and position to the second assembly holes 21. The number of second assembly holes 21 and the number of first assembly holes 13 are equal, and the positions of the second assembly holes 21 and the first assembly holes 13 correspond to each other so as to allow the fixing member 3 to pass through. Furthermore, the number and position of the second assembly holes 21 and the first assembly holes 13 can be adjusted according to actual needs, and it is optimal to arrange multiple groups of second assembly holes 21 and first assembly holes 13 at equal intervals.

[0048] See Figure 2 and Figure 3As shown, in some embodiments, the fixing member 3 includes a screw 31 and a gasket 32 ​​. The gasket 32 ​​is sleeved on the screw 31 , and the screw 31 passes through the second assembly hole 21 , the wire mesh and the first assembly hole 13 in sequence.

[0049] Specifically, the combination of screws 31 and washers 32 creates a secure connection between the assembly plate 1 and the pressure plate 2, ensuring that the wire mesh will not easily fall off or shift during use. Screws 31 pass sequentially through the second assembly hole 21, the wire mesh, and the first assembly hole 13, and are secured by washers 32, forming a secure connection between the wire mesh and the assembly plate 1. This ensures that the wire mesh will not easily fall off even under external forces.

[0050] See Figure 2 As shown, in some embodiments, the edge of the wire mesh extends beyond the overlapping range of the pressing plate 2 and the assembly plate 1.

[0051] Specifically, the extension of the wire mesh edge not only increases the fixed area of ​​the wire mesh, but also provides additional fixing points for the wire mesh. When the wire mesh is impacted or worn, causing the wire to break, the excess wire outside the screw 31 can continue to perform the limiting and fixing work, preventing the entire wire mesh from failing due to damage at one point.

[0052] That is, at the edge extension portion of the wire mesh, even if the wire near the screw 31 is damaged, the outer wire can still provide additional limiting effect to prevent further damage or displacement of the wire mesh, thereby enhancing the reliability of the entire protective device.

[0053] See Figure 2 As shown, in some embodiments, mounting holes 14 are provided on both sides of the assembly plate 1 .

[0054] Specifically, the design of mounting holes 14 on both sides of the assembly plate 1 simplifies the installation process of the protective device on the excavator cylinder 4. Through these mounting holes 14, the entire protective device can be easily fixed in a predetermined position, ensuring that it is firmly installed around the cylinder 4, thereby providing effective protection.

[0055] See Figure 2 As shown, in some embodiments, the pressure plate 2 includes a first pressure plate 22, a second pressure plate 23, a third pressure plate 24 and a fourth pressure plate 25. The first pressure plate 22, the second pressure plate 23, the third pressure plate 24 and the fourth pressure plate 25 are connected end to end in sequence and arranged around the outside of the through hole 11, and are all detachably connected to the assembly plate 1.

[0056] Specifically, the segmented arrangement allows the pressing plate 2 to be processed separately during the manufacturing process, reducing the difficulty and cost of producing a single large pressing plate 2, making the production process simpler and more efficient. If a section of the pressing plate 2 is damaged, the damaged section can be replaced separately without replacing the entire pressing plate 2, reducing maintenance costs and improving economic efficiency.

[0057] See Figure 1-Figure 3 As shown, in some embodiments, the mounting plate 1 and the through hole 11 are both rectangular.

[0058] Specifically, since the position of the cylinder 4 that needs to be protected is usually a rectangular area, the assembly plate 1 and the through hole 11 are both designed to be rectangular to better match the shape of the cylinder 4, ensuring that the protective device can fully cover the area that needs to be protected and provide the most effective protection.

[0059] See Figure 2 As shown, in some embodiments, a metal edging 121 is provided at the edge of the wire mesh.

[0060] Specifically, the metal edging 121 provides a certain degree of rigidity to the flexible steel mesh, making it easier to position during installation and avoiding the difficulty in securing it due to the inherent flexibility of the material. Furthermore, the metal edging 121 helps maintain the shape of the steel mesh, ensuring that the steel mesh is accurately placed in the intended location during installation, thereby improving installation accuracy.

[0061] In addition, the metal edging 121 can protect the edge of the wire mesh from being damaged, especially when it comes into contact with the assembly plate 1 or other components during the installation process, thereby avoiding damage to the edge due to friction.

[0062] See Figure 2 and Figure 4 As shown, in some embodiments, the assembly plate 1 is provided with a positioning protrusion 15 , and the positioning protrusion 15 abuts against the metal cladding 121 .

[0063] Specifically, the use of the positioning flange 15 and the metal edging 121 can ensure that the wire mesh can be accurately positioned during installation, avoiding the problem of inadequate protection caused by inaccurate positioning, and the setting of the positioning flange 15 can also improve installation efficiency.

[0064] The technical means disclosed in the present invention are not limited to those disclosed in the above-mentioned embodiments, but also include technical solutions composed of any combination of the above-mentioned technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A cylinder protection device, characterized in that: include: An assembly plate (1), wherein the assembly plate (1) is provided with a through hole (11), a filter screen (12) is installed at the through hole (11), the filter screen (12) is laid on one side of the assembly plate (1), and the filter screen (12) covers the through hole (11) of the assembly plate (1); A pressing plate (2), the pressing plate (2) being arranged along the edge of the through hole (11) of the assembly plate (1), the pressing plate (2) being detachably connected to the assembly plate (1), and the filter screen (12) being arranged between the pressing plate (2) and the assembly plate (1); Wherein, the filter screen (12) is a steel wire mesh.

2. The oil cylinder protection device according to claim 1, characterized in that: The assembly plate (1) is provided with a first assembly hole (13), the pressure plate (2) is provided with a second assembly hole (21) corresponding to the first assembly hole (13), and the first assembly hole (13) and the second assembly hole (21) are provided with fixing members (3), and the fixing member (3) connects the first assembly hole (13) and the second assembly hole (21) to clamp the wire mesh between the assembly plate (1) and the pressure plate (2).

3. The oil cylinder protection device according to claim 2, characterized in that: A plurality of the first assembly holes (13) are provided on the assembly plate (1); the pressure plate (2) is provided with second assembly holes (21) corresponding in number and position to the first assembly holes (13); and each group of the first assembly holes (13) and the second assembly holes (21) is provided with the fixing member (3).

4. The oil cylinder protection device according to claim 3, characterized in that: The fixing member (3) comprises a screw (31) and a washer (32), wherein the washer (32) is sleeved on the screw (31), and the screw (31) is sequentially passed through the second assembly hole (21), the wire mesh, and the first assembly hole (13).

5. The oil cylinder protection device according to claim 1, characterized in that: The edge of the steel mesh extends beyond the overlapping range of the pressing plate (2) and the assembly plate (1).

6. The oil cylinder protection device according to claim 1, characterized in that: Mounting holes (14) are provided on both sides of the assembly plate (1).

7. The oil cylinder protection device according to any one of claims 1 to 6, characterized in that: The pressure plate (2) includes a first pressure plate (22), a second pressure plate (23), a third pressure plate (24) and a fourth pressure plate (25). The first pressure plate (22), the second pressure plate (23), the third pressure plate (24) and the fourth pressure plate (25) are sequentially connected end to end and arranged around the outside of the through hole (11), and are all detachably connected to the assembly plate (1).

8. The oil cylinder protection device according to any one of claims 1 to 6, characterized in that: The assembly plate (1) and the through hole (11) are both rectangular.

9. The oil cylinder protection device according to any one of claims 1 to 6, characterized in that: The edges of the steel wire mesh are provided with metal edging (121).

10. The oil cylinder protection device according to claim 9, characterized in that: The assembly plate (1) is provided with a positioning convex edge (15), and the positioning convex edge (15) abuts against the metal edging (121).

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