Explosion-proof hydraulic oil cylinder

Abstract

The utility model provides an anti-explosion hydraulic oil cylinder, which relates to the technical field of hydraulic oil cylinders and comprises an oil cylinder body, two first anti-explosion plates are movably contacted with the outer surface wall of the oil cylinder body, two groups of first clamping blocks are fixedly connected with one side of the outer wall of one of the two first anti-explosion plates, and first limiting grooves are formed in one sides of the outer walls of the two groups of first clamping blocks. And two groups of first clamping grooves are formed in one side of the outer wall of the other one of the two first explosion-proof plates. According to the explosion-proof device, under the interaction of all the components of the device, the two first explosion-proof plates and the two second explosion-proof plates are quickly disassembled and assembled, so that the operation process is simplified, the maintenance is more convenient and efficient, meanwhile, the multiple limiting design is adopted to ensure that all the explosion-proof plates form a stable whole, and the explosion-proof effect is better. The safety and reliability of the structure are effectively improved, and it is ensured that the stable anti-explosion performance can be kept under the extreme working condition.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic cylinders, in particular to an explosion-proof hydraulic cylinder. Background Art

[0002] A hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy, mainly used to achieve linear reciprocating motion. Due to its simple structure, reliable operation, and stable movement, it is widely used in the hydraulic systems of various mechanical equipment. During the use of a hydraulic cylinder, if factors such as improper material selection, unstable oil pressure, and flammable and explosive environments occur, it may cause an explosion, resulting in serious casualties and property losses. Therefore, explosion-proof design is crucial for ensuring the safe operation of hydraulic cylinders.

[0003] In the explosion-proof design of hydraulic cylinders, explosion-proof plates are usually added to prevent the fragments and shock waves generated during accidental explosions from harming personnel. However, the explosion-proof plates of existing explosion-proof hydraulic cylinders usually require a large number of bolts for installation, making the installation and disassembly of the explosion-proof plates particularly cumbersome and complex, resulting in an increase in the time cost and maintenance cost of operation. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the problem that during the use of the above equipment, due to the need for a large number of bolts to install the explosion-proof plate during the installation process of the explosion-proof hydraulic cylinder, the operation time cost and maintenance cost are increased, and thus an explosion-proof hydraulic cylinder is proposed.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme: An explosion-proof hydraulic cylinder solventless printing and laminating machine, including a cylinder body, two first explosion-proof plates are in movable contact with the outer surface wall of the cylinder body, two groups of first clamping blocks are fixedly connected to one side of the outer wall of one of the two first explosion-proof plates, first limiting grooves are opened on one side of the outer walls of the two groups of first clamping blocks, two groups of first clamping grooves are opened on one side of the outer wall of the other of the two first explosion-proof plates, two groups of second limiting grooves are opened on the outer surface wall of the other of the two first explosion-proof plates, two second explosion-proof plates are in movable contact with the outer surface walls of the two first explosion-proof plates, two groups of second clamping blocks are fixedly connected to one side of the outer wall of one of the two second explosion-proof plates, third limiting grooves are opened on one side of the outer walls of the two groups of second clamping blocks, two groups of second clamping grooves are opened on one side of the outer wall of the other of the two second explosion-proof plates, two groups of fourth limiting grooves are opened on the outer surface wall of the other of the two second explosion-proof plates, limiting rods are movably inserted into the inner surface walls of the two groups of fourth limiting grooves, and a pull rod is fixedly connected between the outer walls of the two groups of limiting rods.

[0006] Preferably, two return springs are fixedly connected to one side of the outer walls of the two pull rods.

[0007] Preferably, a group of first rubber pads are fixedly connected to the outer surfaces of both of the two first explosion-proof plates.

[0008] Preferably, inner sleeves are fixedly connected to one sides of the outer walls of both groups of the first rubber pads.

[0009] Preferably, buffer springs are fixedly connected to the inner surfaces of both groups of the inner sleeves.

[0010] Preferably, outer sleeves are fixedly connected to the outer surfaces of both groups of the buffer springs.

[0011] Preferably, second rubber pads are fixedly connected to one sides of the outer walls of both groups of the outer sleeves.

[0012] Compared with the prior art, the advantages and positive effects of the present utility model are as follows.

[0013] In the present utility model, through the interaction of the components of the device, the rapid disassembly and assembly of the two first explosion-proof plates and the two second explosion-proof plates are realized, thereby simplifying the operation process, making the maintenance more convenient and efficient. At the same time, the multiple limit designs are adopted to ensure that a firm whole is formed among the explosion-proof plates, effectively improving the safety and reliability of the structure and ensuring stable explosion-proof performance under extreme working conditions.

[0014] In the present utility model, through the interaction of the components of the device, the two-layer explosion-proof plates can provide double protection. When the two first explosion-proof plates cannot completely resist the impact force, the impact force will be absorbed and correspondingly weakened by the elastic deformation of the two groups of buffer springs, and then the explosion force transmitted to the two second explosion-proof plates will be significantly reduced, thereby effectively ensuring the safety and stability of the overall structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the three-dimensional front view structure diagram of an explosion-proof hydraulic cylinder proposed by the present utility model;

[0016] Figure 2 is the three-dimensional exploded front view structure diagram of an explosion-proof hydraulic cylinder proposed by the present utility model;

[0017] Figure 3 is the three-dimensional exploded internal structure diagram of an explosion-proof hydraulic cylinder proposed by the present utility model;

[0018] Figure 4 is the three-dimensional exploded partial structure diagram of an explosion-proof hydraulic cylinder proposed by the present utility model;

[0019] Figure 5 is the three-dimensional side exploded partial structure diagram of an explosion-proof hydraulic cylinder proposed by the present utility model.

[0020] LEGEND DESCRIPTION:

[0021] 1. Oil cylinder body; 2. First explosion-proof plate; 3. First clamping block; 4. First limiting groove; 5. First clamping groove; 6. Second limiting groove; 7. Second explosion-proof plate; 8. Second clamping block; 9. Third limiting groove; 10. Second clamping groove; 11. Fourth limiting groove; 12. Limiting rod; 13. Pull rod; 14. Return spring; 15. First rubber pad; 16. Inner sleeve; 17. Buffer spring; 18. Outer sleeve; 19. Second rubber pad. Detailed implementation mode

[0022] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention will be further described below with reference to the drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

[0023] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited by the specific embodiments disclosed in the following specification.

[0024] Embodiment 1, as Figures 1 - 5 shown, the present invention provides an explosion-proof hydraulic oil cylinder, including an oil cylinder body 1. Two first explosion-proof plates 2 are in movable contact with the outer surface wall of the oil cylinder body 1. One side of the outer wall of one of the two first explosion-proof plates 2 is fixedly connected with two groups of first clamping blocks 3. One side of the outer wall of each of the two groups of first clamping blocks 3 is provided with a first limiting groove 4. One side of the outer wall of the other of the two first explosion-proof plates 2 is provided with two groups of first clamping grooves 5. The outer surface wall of the other of the two first explosion-proof plates 2 is provided with two groups of second limiting grooves 6. The outer surface walls of the two first explosion-proof plates are both in movable contact with a second explosion-proof plate 7. One side of the outer wall of one of the two second explosion-proof plates 7 is fixedly connected with two groups of second clamping blocks 8. One side of the outer wall of each of the two groups of second clamping blocks 8 is provided with a third limiting groove 9. One side of the outer wall of the other of the two second explosion-proof plates 7 is provided with two groups of second clamping grooves 10. The outer surface wall of the other of the two second explosion-proof plates 7 is provided with two groups of fourth limiting grooves 11. Limiting rods 12 are movably inserted into the inner surface walls of the two groups of fourth limiting grooves 11. A pull rod 13 is fixedly connected between one sides of the outer walls of the two groups of limiting rods 12.

[0025] The effect achieved by the entire embodiment 1 is that, when the explosion-proof panel assembly needs to be installed, the two first explosion-proof panels 2 are firstly accurately docked on the outer wall of the cylinder body 1, and the initial connection is achieved through the close cooperation of the two groups of first clamping blocks 3 and the corresponding first clamping grooves 5. At this time, the two groups of first limiting grooves 4 on the first explosion-proof panel 2 should overlap with the two groups of second limiting grooves 6 to reserve space for the subsequent fastening mechanism. Then, the operator needs to pull the two pull rods 13, and the two pull rods 13 respectively drive the two groups of limiting rods 12 to move toward the outside of the cylinder. At the same time, the four reset springs 14 are stretched to store energy. Then, the two second explosion-proof panels 7 are initially fixed to the outer walls of the two first explosion-proof panels 2 in the same way to ensure that the two groups of second clamping blocks 8 are accurately and seamlessly connected. The two second explosion-proof panels 7 are accidentally inserted into the corresponding second card slots 10 to achieve a preliminary stable connection. After the preliminary installation of the two second explosion-proof panels 7 is completed, the two pull rods 13 are released. At this time, the four reset springs 14 quickly release the stored energy, pushing the two groups of limit rods 12 to move inward, and pass through the two groups of fourth limit grooves 11, the two groups of third limit grooves 9, and the two groups of second limit grooves 6 in turn, and finally lock in the two groups of first limit grooves 4. In this way, the two first explosion-proof panels 2 and the two second explosion-proof panels 7 can be formed into a stable whole, and the stability and safety of the overall structure are enhanced through multiple limit designs. Through this installation method, the installation and disassembly of the explosion-proof structure can be completed quickly and accurately, which significantly improves work efficiency and reduces maintenance costs.

[0026] Embodiment 2, as Figures 2 - 5 As shown, two return springs 14 are fixedly connected to one side of the outer wall of the two pull rods 13, a group of first rubber pads 15 are fixedly connected to the outer walls of the two first explosion-proof plates 2, one side of the outer wall of the two groups of first rubber pads 15 are fixedly connected to the inner sleeve 16, the inner wall of the two groups of inner sleeves 16 are fixedly connected to the buffer spring 17, the outer wall of the two groups of buffer springs 17 are fixedly connected to the outer sleeve 18, and one side of the outer wall of the two groups of outer sleeves 18 are fixedly connected to the second rubber pad 19.

[0027] The effect achieved by the entire Embodiment 2 is that when an explosion occurs inside the oil cylinder body 1, the impact force will first be quickly and directly transmitted to the two first explosion-proof plates 2. These two first explosion-proof plates 2 serve as the first line of defense, aiming to absorb and disperse the huge energy generated by the explosion. However, when the first explosion-proof plates 2 cannot fully withstand this huge impact force, they will deform, that is, bend or break, to further release and absorb energy. During the deformation process of the first explosion-proof plates 2, they will first be supported by two groups of buffer springs 17. The two groups of buffer springs 17 further absorb and disperse the impact force through their elastic deformation, thereby slowing down the direct action of the impact force on the two second explosion-proof plates 7. In addition, through the combined action of two groups of first rubber pads 15 and two groups of second rubber pads 19, the buffering effect can be further increased. These rubber pads have good elasticity and can provide additional support and buffering when the two first explosion-proof plates 2 deform.

[0028] Working principle: When in use, first, two first explosion-proof plates 2 need to be accurately butted against the outer wall of the oil cylinder body 1. Through the tight fit between two groups of first clamping blocks 3 and corresponding first clamping grooves 5, a preliminary stable connection is achieved. At this time, the positions of two groups of first limiting grooves 4 and two groups of second limiting grooves 6 should naturally overlap. Then, the operator needs to pull two pull rods 13, and these two pull rods 13 respectively connect and drive two groups of limiting rods 12 to move outward. At the same time, four reset springs 14 are stretched and store elastic potential energy. Subsequently, two second explosion-proof plates 7 are preliminarily fixed on the outer walls of the two first explosion-proof plates 2 to ensure that two groups of second clamping blocks 8 accurately insert into the corresponding second clamping grooves 10. At this time, the positions of two groups of first limiting grooves 4, second limiting grooves 6, two groups of third limiting grooves 9, and fourth limiting grooves 11 are overlapped with each other to facilitate the passing through and locking of the limiting rods 12 subsequently. After the preliminary fixation of the second explosion-proof plates 7 is completed, at this time, the two pull rods 13 are released. Under the elastic restoring force of the four reset springs 14, the two groups of limiting rods 12 will quickly move inward and sequentially pass through two groups of fourth limiting grooves 11, two groups of third limiting grooves 9, and second limiting grooves 6, and finally be locked in the first limiting grooves 4. In this process, the two limiting rods 12 not only enhance the connection strength between the two first explosion-proof plates 2 and the two second explosion-proof plates 7, but also ensure the stability and safety of the overall structure through multiple limiting designs. When an explosion occurs inside the oil cylinder body 1, the impact force will first be transmitted to the two first explosion-proof plates 2. If the first explosion-proof plates 2 cannot fully withstand the impact force, deformation will occur. This deformation will first squeeze two groups of buffer springs 17, and the two groups of buffer springs 17 absorb and disperse part of the impact force through their elastic deformation. Moreover, two groups of first rubber pads 15 and two groups of second rubber pads 19 increase the softness and sealing performance of the contact, and also further disperse and weaken the transmission of the explosion force through friction and compression. When the explosion force finally reaches the two second explosion-proof plates 7, its intensity has been weakened, thereby effectively protecting the safety of the oil cylinder body 1 and surrounding equipment and personnel.

[0029] The above is only a preferred embodiment of the present invention, and it is not a limitation to the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. An explosion-proof hydraulic cylinder, comprising a cylinder body (1), characterized in that: The outer wall of the oil cylinder body (1) is movably in contact with two first explosion-proof panels (2); one side of the outer wall of one of the two first explosion-proof panels (2) is fixedly connected with two groups of first clamping blocks (3); one side of the outer wall of the two groups of first clamping blocks (3) is provided with a first limiting groove (4); one side of the outer wall of the other of the two first explosion-proof panels (2) is provided with two groups of first clamping grooves (5); the outer wall of the other of the two first explosion-proof panels (2) is provided with two groups of second limiting grooves (6); the outer walls of the two first explosion-proof panels (2) are movably in contact with the second explosion-proof panels (7); the two Two groups of second clamping blocks (8) are fixedly connected to one side of the outer wall of one of the second explosion-proof panels (7), and third limiting grooves (9) are provided on one side of the outer wall of the two groups of second clamping blocks (8). Two groups of second clamping grooves (10) are provided on one side of the outer wall of the other of the two second explosion-proof panels (7). Two groups of fourth limiting grooves (11) are provided on the outer wall of the other of the two second explosion-proof panels (7). Limiting rods (12) are movably inserted into the inner walls of the two groups of the fourth limiting grooves (11), and pull rods (13) are fixedly connected between one side of the outer walls of the two groups of the limiting rods (12).

2. The explosion-proof hydraulic cylinder according to claim 1, characterized in that: Two return springs (14) are fixedly connected to one side of the outer wall of the two pull rods (13).

3. The explosion-proof hydraulic cylinder according to claim 2, characterized in that: A set of first rubber pads (15) are fixedly connected to the outer walls of the two first explosion-proof panels (2).

4. The explosion-proof hydraulic cylinder according to claim 3, characterized in that: One side of the outer wall of the two groups of the first rubber pads (15) is fixedly connected to an inner sleeve (16).

5. The explosion-proof hydraulic cylinder according to claim 4, characterized in that: The inner surface walls of the two groups of inner sleeves (16) are both fixedly connected with buffer springs (17).

6. The explosion-proof hydraulic cylinder according to claim 5, characterized in that: The outer surfaces of the two groups of buffer springs (17) are fixedly connected to outer sleeves (18).

7. The explosion-proof hydraulic cylinder according to claim 6, characterized in that: A second rubber pad (19) is fixedly connected to one side of the outer wall of the two groups of outer sleeves (18).

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