Sealing and dustproof structure for cylinder opening of oil cylinder

Abstract

The utility model discloses an oil cylinder opening sealing dustproof structure, and relates to the technical field of oil cylinder protection. The oil cylinder comprises an oil cylinder body, wherein a supporting device is fixed on the outer side of the oil cylinder body; the supporting device comprises supporting frames, an installation supporting foot is fixed to the outer side of one supporting frame, and the supporting frame fixedly provided with the installation supporting foot is fixedly connected with the oil cylinder body shell. A mounting plate is fixed at one end of the support frame; a through hole is formed in the surface of the mounting plate; a first spring is fixed on one side of the mounting plate; a connecting plate is fixed at one end of the first spring; a reinforcing rod is fixed to one side of the connecting plate and penetrates through the through hole. Through the effect of the reinforcing plate, the dustproof ring seals the cylinder opening of the oil cylinder body, external dust is prevented from entering the oil cylinder body through the cylinder opening, meanwhile, the reinforcing plate compresses the dustproof ring through the acting force of the first spring at one end of the reinforcing rod, so that the dustproof ring can be attached to the cylinder opening of the oil cylinder body more firmly, and the dustproof effect is better. And the condition that the dustproof ring is loosened and falls off is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of oil cylinder protection, and particularly relates to a sealing and dust-proof structure for the oil cylinder port. Background Technique

[0002] An oil cylinder, namely a hydraulic cylinder, is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion or swinging motion. It has a simple structure and reliable operation. When used to achieve reciprocating motion, it can eliminate the deceleration device, and there is no transmission gap, and the motion is stable. Therefore, it is widely used in the hydraulic systems of various machines.

[0003] During the working process of the oil cylinder, if dust and impurities enter, it may cause wear of the seal, oil pollution, and even damage to internal parts. The dust-proof ring is a common dust-proof device on the oil cylinder, which can effectively prevent external dust and impurities from entering the oil cylinder. The dust-proof ring is usually installed on the outside of the piston rod and forms a barrier by tightly fitting with the piston rod using its elasticity. Due to the continuous linear reciprocating motion of the piston rod and continuous friction with the dust-proof ring, after long-term use, the elasticity of the dust-proof ring becomes poor, and it is easy to fall off from the interface of the oil cylinder, resulting in dust entering the oil cylinder from the interface, thereby affecting the service life of the oil cylinder. Content of the Utility Model

[0004] The purpose of the utility model is to provide a sealing and dust-proof structure for the oil cylinder port. Through the action of the reinforcement plate, the dust-proof ring seals the port of the oil cylinder body, preventing external dust from entering the interior of the oil cylinder body through the port. At the same time, the acting force of the first spring at one end of the reinforcement rod makes the reinforcement plate press the dust-proof ring, so that the dust-proof ring can fit more tightly at the port of the oil cylinder body, avoiding the situation of the dust-proof ring loosening and falling off, and solving the problem that after long-term use, the elasticity of the existing dust-proof ring becomes poor, and it is easy to fall off from the interface of the oil cylinder, resulting in dust entering the oil cylinder from the interface, thereby affecting the service life of the oil cylinder.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A sealing and dust-proof structure for the oil cylinder port, including an oil cylinder body, and a support device is fixed on the outside of the oil cylinder body;

[0007] The support device includes a support frame, and an installation support foot is fixed on the outside of one support frame. The support frame with the installation support foot fixed is fixedly connected to the outer shell of the oil cylinder body;

[0008] One end of the support frame is fixed with an installation plate, and through holes are formed on the surface of the installation plate;

[0009] A first spring is fixed on one side of the installation plate, and a connecting plate is fixed at one end of the first spring;

[0010] One side of the connecting plate is fixed with a reinforcing rod, the reinforcing rod penetrates through the through hole, and one end of the reinforcing rod is fixed with a reinforcing plate;

[0011] A dust-proof ring is sleeved on the outer ring of the cylinder mouth of the cylinder body. The reinforcing plate has a "C" - shaped structure, and the inner ring of the reinforcing plate closely adheres to the outer side of the dust-proof ring.

[0012] The present utility model is further configured as: Installation strips are fixed on both sides of the support frame, and a plurality of threaded holes are formed on the surface of the installation strips.

[0013] The present utility model is further configured as: A protective shell is fixed inside the inner ring of the support frame;

[0014] A telescopic rod is fixed inside the protective shell, and a second spring is sleeved on the outer side of the telescopic rod.

[0015] The present utility model is further configured as: One end of the telescopic rod is fixed with an adjusting plate, and a support plate is fixed on the top of the adjusting plate;

[0016] One end of the second spring is fixedly connected to the inner wall of the protective shell, and the other end of the second spring is fixedly connected to the adjusting plate.

[0017] The present utility model is further configured as: The support plate has an arc-shaped structure, and a plurality of anti-slip strips are fixed on the inner wall of the support plate.

[0018] The present utility model is further configured as: Limit blocks are fixed on both sides of the adjusting plate, and the limit blocks have a rectangular structure.

[0019] The present utility model is further configured as: Limit grooves are fixed on both sides of the inner wall of the protective shell, and the limit blocks are slidably connected with the limit grooves.

[0020] The present utility model has the following beneficial effects:

[0021] Through the action of the reinforcing plate, the dust-proof ring seals the cylinder mouth of the cylinder body, preventing external dust from entering the interior of the cylinder body through the cylinder mouth. At the same time, the acting force of the first spring at one end of the reinforcing rod makes the reinforcing plate press the dust-proof ring, so that the dust-proof ring can fit more tightly on the cylinder mouth of the cylinder body, avoiding the situation of the dust-proof ring loosening and falling off.

[0022] Through the action of the support plate, if the cylinder body shakes during processing, the acting force of the second spring on the inner wall of the support frame pushes the adjusting plate and the support plate at one end of it, making the support plate closely adhere to the outer wall of the cylinder body, so that the shaking cylinder body can quickly return to stability. At the same time, a plurality of anti-slip strips on the outer side of the support plate can increase the friction between the support plate and the cylinder body, making the cylinder body more stable.

[0023] Of course, it is not necessary for any product implementing the present utility model to simultaneously achieve all the above-mentioned advantages. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for describing the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0025] Figure 1 It is a schematic structural diagram of a sealing and dust-proof structure for the cylinder opening of a cylinder of the present utility model.

[0026] Figure 2 It is a schematic structural diagram of the present utility model from a bottom view perspective.

[0027] Figure 3 It is a schematic structural diagram of the support device of the present utility model.

[0028] Figure 4 It is a schematic structural diagram of the support frame of the present utility model.

[0029] Figure 5 For the present utility model Figure 4 Partial enlarged view at position A.

[0030] Figure 6 It is a schematic internal structure diagram of the protective shell of the present utility model.

[0031] In the drawings, the list of components represented by each reference numeral is as follows:

[0032] 1 - cylinder body, 2 - support device, 3 - support frame, 4 - mounting foot, 5 - mounting plate, 6 - through hole, 7 - first spring, 8 - connecting plate, 9 - reinforcing rod, 10 - reinforcing plate, 11 - dust-proof ring, 12 - mounting strip, 13 - threaded hole, 14 - protective shell, 15 - telescopic rod, 16 - second spring, 17 - adjusting plate, 18 - support plate, 19 - anti-slip strip, 20 - limiting block, 21 - limiting groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The following will describe the present utility model in detail with reference to the drawings and in combination with the embodiments.

[0034] It should be pointed out that unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present application belongs.

[0035] In the present utility model, unless otherwise specified, the orientations such as "upper" and "lower" generally refer to the directions shown in the drawings, or to the vertical, perpendicular or gravitational directions; similarly, for the convenience of understanding and description, "left" and "right" generally refer to the left and right shown in the drawings; "inner" and "outer" refer to the inner and outer of the contour of each component itself, but the above orientation terms are not used to limit the present utility model.

[0036] Specific Embodiment 1, please refer to Figures 1-6 , the present utility model is a dust-proof structure for the oil cylinder port seal, which includes an oil cylinder body 1, and a support device 2 is fixed outside the oil cylinder body 1; the support device 2 includes a support frame 3, and an installation support foot 4 is fixed outside one support frame 3, and the support frame 3 with the installation support foot 4 fixed is fixedly connected to the outer shell of the oil cylinder body 1; one end of the support frame 3 is fixed with an installation plate 5, and a through hole 6 is opened on the surface of the installation plate 5; a first spring 7 is fixed on one side of the installation plate 5, and one end of the first spring 7 is fixed with a connection plate 8; a reinforcing rod 9 is fixed on one side of the connection plate 8, the reinforcing rod 9 penetrates through the through hole 6, and one end of the reinforcing rod 9 is fixed with a reinforcing plate 10; a dust-proof ring 11 is sleeved on the outer ring of the oil cylinder port of the oil cylinder body 1, the reinforcing plate 10 is of a "C" - shaped structure, and the inner ring of the reinforcing plate 10 closely adheres to the outer side of the dust-proof ring 11.

[0037] Specifically, installation strips 12 are fixed on both sides of the support frame 3, and a plurality of threaded holes 13 are opened on the surface of the installation strips 12.

[0038] The operation process of this embodiment is as follows: When this device is in use, using tools such as bolts, the bolts are screwed into the installation support foot 4 to fix the oil cylinder body 1. After fixing the position of the oil cylinder body 1, the dust-proof ring 11 is installed at the port of the oil cylinder body 1. When installing the dust-proof ring 11, the reinforcing plate 10 is pulled outwards, and the dust-proof ring 11 is inserted through the gap between the inner ring of the reinforcing plate 10 and the oil cylinder body 1 and sorted out. At this time, the dust-proof ring 11 is located between the port of the oil cylinder body 1 and the reinforcing plate 10. Then, another support frame 3 is fixed on one side of this support frame 3 by tools such as bolts, and at the same time, it is ensured that the reinforcing plate 10 can clamp the dust-proof ring 11. In subsequent use, the dust-proof ring 11 seals the port of the oil cylinder body 1 to prevent external dust from entering the interior of the oil cylinder body 1 through the port. At the same time, the acting force of the first spring 7 at one end of the reinforcing rod 9 makes the reinforcing plate 10 press the dust-proof ring 11, so that the dust-proof ring 11 can fit more tightly against the port of the oil cylinder body 1, avoiding the situation of the dust-proof ring 11 loosening and falling off.

[0039] Specific Embodiment 2, please refer to Figures 5-6, on the basis of Specific Embodiment 1, a protective case 14 is fixedly arranged inside the inner ring of the support frame 3; a telescopic rod 15 is fixedly arranged inside the protective case 14, and a second spring 16 is sleeved outside the telescopic rod 15; one end of the telescopic rod 15 is fixedly connected with an adjusting plate 17, and a support plate 18 is fixedly arranged on the top of the adjusting plate 17; one end of the second spring 16 is fixedly connected with the inner wall of the protective case 14, and the other end of the second spring 16 is fixedly connected with the adjusting plate 17.

[0040] Specifically, the support plate 18 is of an arc-shaped structure, and a plurality of anti-slip strips 19 are fixedly arranged on the inner wall of the support plate 18.

[0041] Furthermore, limiting blocks 20 are fixedly arranged on both sides of the adjusting plate 17, and the limiting blocks 20 are of a rectangular structure; limiting grooves 21 are fixedly arranged on both sides of the inner wall of the protective case 14, and the limiting blocks 20 are slidably connected with the limiting grooves 21.

[0042] The operation process of this embodiment is as follows: When the support device 2 is completely fixed outside the oil cylinder body 1, the support device 2 can protect the outer shell of the oil cylinder body 1. While the reinforcing plate 10 can fix the dust-proof ring 11, if the oil cylinder body 1 shakes during processing, the acting force of the second spring 16 on the inner wall of the support frame 3 pushes the adjusting plate 17 and the support plate 18 at one end thereof, so that the support plate 18 is tightly attached to the outer wall of the oil cylinder body 1, enabling the shaking oil cylinder body 1 to quickly return to stability. At the same time, a plurality of anti-slip strips 19 on the outer side of the support plate 18 can increase the friction between the support plate 18 and the oil cylinder body 1, making the oil cylinder body 1 more stable.

[0043] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0044] The above-disclosed preferred embodiments of the present invention are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification in order to better explain the principle and practical application of the present invention, so that those skilled in the art in the relevant technical field can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. An oil cylinder port sealing and dust-proof structure, comprising an oil cylinder body (1), characterized in that: A support device (2) is fixed on the outer side of the oil cylinder body (1); The support device (2) includes a support frame (3). An installation support foot (4) is fixed on the outer side of one support frame (3). The support frame (3) with the installation support foot (4) fixed thereon is fixedly connected to the outer shell of the oil cylinder body (1); One end of the support frame (3) is fixed with an installation plate (5), and through holes (6) are formed on the surface of the installation plate (5); A first spring (7) is fixed on one side of the installation plate (5), and one end of the first spring (7) is fixed with a connecting plate (8); A reinforcing rod (9) is fixed on one side of the connecting plate (8). The reinforcing rod (9) passes through the through hole (6), and one end of the reinforcing rod (9) is fixed with a reinforcing plate (10); A dust-proof ring (11) is sleeved on the outer ring of the cylinder opening of the oil cylinder body (1). The reinforcing plate (10) is of a "C" - shaped structure, and the inner ring of the reinforcing plate (10) closely adheres to the outer side of the dust-proof ring (11).

2. The dust-proof structure for sealing the cylinder port of an oil cylinder according to claim 1, characterized in that, Installation strips (12) are fixed on both sides of the support frame (3), and a number of threaded holes (13) are formed on the surface of the installation strips (12); 3. The dust-proof structure for sealing the cylinder port of an oil cylinder according to claim 1, characterized in that, A protective shell (14) is fixed on the inner circle of the support frame (3); A telescopic rod (15) is fixed inside the protective shell (14), and a second spring (16) is sleeved on the outer side of the telescopic rod (15); 4. A dust-proof structure for sealing the cylinder port of an oil cylinder according to claim 3, characterized in that, One end of the telescopic rod (15) is fixed with an adjusting plate (17), and a support plate (18) is fixed on the top of the adjusting plate (17); One end of the second spring (16) is fixedly connected to the inner wall of the protective shell (14), and the other end of the second spring (16) is fixedly connected to the adjusting plate (17).

5. The dust-proof structure for sealing the cylinder port of an oil cylinder according to claim 4, characterized in that, The support plate (18) is of an arc-shaped structure, and a number of anti-slip strips (19) are fixed on the inner wall of the support plate (18).

6. The dust-proof structure for sealing the cylinder port of an oil cylinder according to claim 5, characterized in that, Limit blocks (20) are fixed on both sides of the adjusting plate (17), and the limit blocks (20) are of a rectangular structure.

7. The dust-proof structure for sealing the cylinder port of an oil cylinder according to claim 6, characterized in that, Limit grooves (21) are fixed on both sides of the inner wall of the protective shell (14), and the limit blocks (20) are slidably connected to the limit grooves (21).

Images