Hydraulic oil cylinder with external protection structure
By setting a combination of rubber tube and tension spring on the outside of the hydraulic cylinder, the impact force is dispersed and reduced, solving the problem of easy damage to the protective shell of the hydraulic cylinder, and improving the protection efficiency and service life.
Patent Information
- Application Number
- CN202520336227.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2035-02-28
AI Technical Summary
The external protective housing of existing hydraulic cylinders is prone to damage under long-term use, resulting in the shedding of protective materials and reducing protection efficiency and usage efficiency.
The system employs a combination of rubber tubes and tension springs. The rubber tubes disperse the impact force, while the connecting rods transmit the force, reducing the stress on individual rubber tubes and preventing damage.
It improves the protection efficiency of hydraulic cylinders, prevents damage to rubber hoses, reduces vibration, and extends service life.
Smart Images

Figure CN223708143U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of hydraulic oil cylinder, specifically is a hydraulic oil cylinder with external protection structure. BACKGROUND
[0002] As the key execution element in the hydraulic system, the hydraulic oil cylinder can convert hydraulic energy into mechanical energy to realize linear reciprocating motion or swing, and is widely used in engineering machinery, metallurgy, mining, ship and many other fields.
[0003] Through the search, the patent with the patent publication number CN219197783U discloses a hydraulic oil cylinder with external protection structure, which comprises a hydraulic oil cylinder, an upper protection shell is arranged at the top of the hydraulic oil cylinder, a lower protection shell is arranged at the bottom of the hydraulic oil cylinder, threaded hole plates are fixedly connected to the front side and the rear side of the upper protection shell and the lower protection shell, anti-skid limiting pads are fixedly connected to the bottom of the upper protection shell and the top of the lower protection shell, anti-collision layers are fixedly connected to the inner walls of the upper protection shell and the lower protection shell, anti-tension layers are fixedly connected to the inner side of the anti-collision layers, and buffer layers are fixedly connected to the inner side of the anti-tension layers, and the materials of the upper protection shell and the lower protection shell are aluminum alloy. The hydraulic oil cylinder has an external protection structure, can process the impact generated by collision, can prevent the structure of the hydraulic oil cylinder from becoming loose, prevent the hydraulic oil cylinder from being deformed and damaged, and thus prevent the hydraulic oil cylinder from being unable to use.
[0004] However, the protection utilizes the shell to protect, and in the long-term use, if the shell is damaged due to collision, the internal protection material will leak out, the internal protection material has the risk of falling off, the protection efficiency is reduced, and the use efficiency of the protection device is also reduced. UTILITY MODEL CONTENTS
[0005] In view of the defects of the prior art, the utility model provides a hydraulic oil cylinder with external protection structure, which solves the problem that the protection utilizes the shell to protect, and in the long-term use, if the shell is damaged due to collision, the internal protection material will leak out, the internal protection material has the risk of falling off, the protection efficiency is reduced, and the use efficiency of the protection device is also reduced.
[0006] To achieve the above purpose, the utility model realizes the following technical scheme: a hydraulic oil cylinder with external protection structure, comprising a hydraulic oil cylinder and a rubber pipe, a fixed pipe is sleeved outside the hydraulic oil cylinder, the internal diameter of the fixed pipe matches the external diameter of the hydraulic oil cylinder, the rubber pipes are sleeved outside the fixed pipe at equal intervals, and a plurality of tension springs are fixedly installed between each rubber pipe and the fixed pipe at equal intervals.
[0007] Preferably, the hydraulic cylinder is externally equidistantly provided with a plurality of connecting rods, and the rubber tubes are all fixedly sleeved on the rod walls of the connecting rods, so that the impact force generated can be dispersed.
[0008] Preferably, the upper end and the lower end of the fixed tube are symmetrically and internally threadedly connected with extruding bolts, the extruding bolts are extruded on the side wall of the hydraulic cylinder through the inside of the fixed tube, and therefore the stability of the position of the fixed tube can be enhanced.
[0009] Preferably, the width of the rubber tube matches the diameter of the tension spring, so that the impact force received by the rubber tube can be uniform.
[0010] Preferably, the spacing between the rubber tubes and the spacing between the adjacent connecting rods are both less than one centimeter, so that the protection efficiency is improved.
[0011] The utility model provides a hydraulic cylinder with external protection structure. It has the following advantages:
[0012] 1. The hydraulic cylinder with external protection structure can first make the rubber tube receive the impact when it is impacted, then cooperate with the action of the tension spring to slow down the force, and use the rubber tube to prevent the external protection device from being damaged, thereby improving the protection efficiency.
[0013] 2. When the hydraulic cylinder with external protection structure is used, the cooperation between the connecting rod and the rubber tube can make the other rubber tubes work under stress when one of the rubber tubes is impacted, thereby effectively reducing the impact force. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0015] Figure 2 It is a side view of the rubber tube of the utility model;
[0016] Figure 3 It is a schematic diagram of the overall structure of the utility model Figure 2 A part of the utility model is enlarged;
[0017] Figure 4 It is a schematic diagram of the overall structure of the utility model Figure 3 B part of the utility model is enlarged.
[0018] In the figure, 1 is a hydraulic cylinder, 2 is a fixed tube, 3 is a rubber tube, 4 is an extruding bolt, 5 is a tension spring, and 6 is a connecting rod. DETAILED DESCRIPTION
[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.
[0020] Embodiment 1
[0021] Please refer to Figures 1-4 The utility model discloses a hydraulic oil cylinder with external protection structure, including hydraulic oil cylinder 1 and rubber pipe 3, the outside of hydraulic oil cylinder 1 is sleeved with fixed pipe 2, the inside diameter of fixed pipe 2 is matched with the outside diameter of hydraulic oil cylinder 1, rubber pipe 3 is equidistantly sleeved on the outside of fixed pipe 2, and a plurality of tension springs 5 are equidistantly fixed and installed between each rubber pipe 3 and fixed pipe 2, the upper end and the lower end side wall inside of fixed pipe 2 are symmetrically connected with extrusion bolt 4, extrusion bolt 4 is extruded to the side wall of hydraulic oil cylinder 1 through the inside of fixed pipe 2, and the position of fixed pipe 2 is conveniently installed firmly, then when hydraulic oil cylinder 1 is impacted, the impact force will first impact rubber pipe 3, under the cooperation of tension spring 5 and rubber pipe 3, the impact force can be effectively slowed down, and due to the softness of rubber pipe 3, the impact force can be prevented from vibrating, and rubber pipe 3 can also be prevented from being damaged, and the protection work of hydraulic oil cylinder 1 is effectively improved.
[0022] Embodiment 2
[0023] In the embodiment, as Figures 2-4 The utility model discloses a hydraulic oil cylinder with external protection structure, including hydraulic oil cylinder 1 and rubber pipe 3, the outside of hydraulic oil cylinder 1 is sleeved with fixed pipe 2, the inside diameter of fixed pipe 2 is matched with the outside diameter of hydraulic oil cylinder 1, rubber pipe 3 is equidistantly sleeved on the outside of fixed pipe 2, and a plurality of tension springs 5 are equidistantly fixed and installed between each rubber pipe 3 and fixed pipe 2, the upper end and the lower end side wall inside of fixed pipe 2 are symmetrically connected with extrusion bolt 4, extrusion bolt 4 is extruded to the side wall of hydraulic oil cylinder 1 through the inside of fixed pipe 2, and the position of fixed pipe 2 is conveniently installed firmly, then when hydraulic oil cylinder 1 is impacted, the impact force will first impact rubber pipe 3, under the cooperation of tension spring 5 and rubber pipe 3, the impact force can be effectively slowed down, and due to the softness of rubber pipe 3, the impact force can be prevented from vibrating, and rubber pipe 3 can also be prevented from being damaged, and the protection work of hydraulic oil cylinder 1 is effectively improved.
[0024] It should be noted that, in the embodiment, when using the hydraulic oil cylinder with external protection structure, as Figures 1-4As shown, the fixing pipe 2 is sleeved outside the hydraulic oil cylinder 1, then the extrusion bolts 4 at both ends are rotated until the extrusion bolts 4 extrude and fasten the side wall of the hydraulic oil cylinder 1, so that the position of the fixing pipe 2 is conveniently installed and fixed, then when the hydraulic oil cylinder 1 is impacted, the impact force first collides with the rubber pipe 3, under the cooperation of the tension spring 5 and the rubber pipe 3, the impact force can be effectively slowed down, when one of the rubber pipes 3 is impacted, through the cooperation between the connecting rod 6 and the other rubber pipes 3, the impact force can be conveniently reduced, and due to the softness of the rubber pipe 3, the impact force can be prevented from vibrating, and the rubber pipe 3 can be prevented from being damaged, so that the protection work of the hydraulic oil cylinder 1 is effectively improved.
[0025] The basic principle and main features of the present application and the advantages of the present application are shown and described above, and it is obvious for those skilled in the art that the present application is not limited to the details of the above-mentioned exemplary embodiments, and the present application can be realized in other specific forms without departing from the spirit or basic characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.
[0026] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of 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 those skilled in the art can understand.
Claims
1. A hydraulic cylinder with an external protective structure, characterized in that: It includes a hydraulic cylinder (1) and a rubber tube (3). A fixed tube (2) is sleeved on the outside of the hydraulic cylinder (1). The inner diameter of the fixed tube (2) matches the outer diameter of the hydraulic cylinder (1). The rubber tubes (3) are sleeved on the outside of the fixed tube (2) at equal intervals. Multiple tension springs (5) are fixedly installed at equal intervals between each rubber tube (3) and the fixed tube (2).
2. A hydraulic cylinder with an external protective structure according to claim 1, characterized in that: The hydraulic cylinder (1) is provided with multiple connecting rods (6) at equal intervals on its exterior, and the rubber tube (3) is fixedly sleeved on the wall of the connecting rod (6).
3. A hydraulic cylinder with an external protective structure according to claim 1, characterized in that: The upper and lower sides of the fixed tube (2) are symmetrically threaded with extrusion bolts (4), and the extrusion bolts (4) are pressed against the side wall of the hydraulic cylinder (1) through the inside of the fixed tube (2).
4. A hydraulic cylinder with an external protective structure according to claim 1, characterized in that: The width of the rubber tube (3) is matched with the diameter of the tension spring (5).
5. A hydraulic cylinder with an external protective structure according to claim 2, characterized in that: The spacing between the rubber tubes (3) and the spacing between adjacent connecting rods (6) are both less than one centimeter.
Citation Information
Patent Citations
Hydraulic oil cylinder with external protection structure
CN219197783U