Top cover structure for hydraulic valve

Abstract

The utility model provides a top cover structure for a hydraulic valve, which relates to the technical field of hydraulic valves and comprises a hydraulic valve body, a fixing disc is arranged on the outer surface of the hydraulic valve body, a top cover body is arranged at the top of the hydraulic valve body, and two sealing semi-rings are sleeved on the outer surface of the fixing disc. According to the sealing device, one of the sealing semi-rings is arranged outside the fixing disc in a sleeving mode, then the pull rod is pulled, the pull rod drives the first sliding block to slide in the first sliding groove, the first sliding block drives the first limiting block to move synchronously, and meanwhile the first reset spring starts to contract due to extrusion; and then the other sealing semi-ring is arranged outside the fixing disc in a sleeving mode, an inserting plate on the other sealing semi-ring is inserted into a corresponding inserting groove, then a pull rod is loosened, and under the elastic force effect of a first reset spring, a first sliding block drives a first limiting block to be squeezed into a first limiting hole, so that the two sealing semi-rings are fixed, and use is convenient and fast.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic valves, in particular to a top cover structure for hydraulic valves. Background Art

[0002] Hydraulic valve is an automatic component operated by pressure oil. It is controlled by the pressure oil of the pressure regulating valve. It is usually used in combination with the electromagnetic pressure regulating valve. It can be used to remotely control the on and off of the oil, gas and water pipeline systems of hydropower stations. It is often used for clamping, control, lubrication and other oil circuits. There are direct-acting type and pilot type, and the pilot type is mostly used. According to the control method, it can be divided into manual, electric control and hydraulic control.

[0003] For example, a hydraulic valve top cover with Chinese application number CN202321066772.6 states in its specification that “the utility model discloses a hydraulic valve top cover, which belongs to the technical field of hydraulic valves, and aims to solve the problem in the prior art that the top cover is exposed to the outside, lacks protective measures, and is easily damaged, thereby causing oil spraying at the hydraulic valve top cover, affecting the normal use of the hydraulic valve. The utility model includes a top cover body, which is fixedly connected to the hydraulic valve body by a flange, fixing bolts and fixing nuts. Two sealing half rings are provided on the outside of the flange, and both ends of the two sealing half rings are fixedly connected to connecting blocks. The inside of the connecting block is provided with threaded holes for mounting bolts. The upper ends of the two sealing half rings are respectively fixedly connected to a first protective cover and a second protective cover. The top cover body is protected by the first protective cover and the second protective cover. The buffer spring and the damping rod play a buffering role, thereby increasing the protective effect of the first protective cover and the second protective cover, and preventing the top cover body from being damaged by external factors.”

[0004] The existing technology has the advantage of preventing the top cover body from being damaged by external factors during use. However, when fixing the two sealing half rings, the two sealing half rings are fixed by connecting blocks, bolts, clamping nuts and clamping members. Although this fixing method is stable, it is inconvenient to operate and requires the use of external tools for fixing, which reduces work efficiency. Utility Model Content

[0005] The purpose of the utility model is to solve the problem in the prior art that two sealing half rings are fixed by connecting blocks, bolts, clamping nuts and clamping members. Although this fixing method is stable, it is inconvenient to operate and requires the use of external tools for fixing, which reduces work efficiency. A top cover structure for a hydraulic valve is proposed.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a top cover structure for a hydraulic valve, comprising a hydraulic valve body, a fixed disk is arranged on the outer surface of the hydraulic valve body, a top cover body is arranged on the top of the hydraulic valve body, the outer surface of the fixed disk is sleeved with two sealing semi-rings, one side of which is provided with a slot, and one side of the other sealing semi-ring is fixedly connected with a plug plate, one side of the plug plate is provided with a first limiting hole, one side of the sealing semi-ring is provided with a first sliding groove, a first slider is slidably connected in the first sliding groove, one end of the first slider is fixedly connected with a first limiting block, the other end of the first slider is fixedly connected with a pull rod, and the outer surface of the pull rod is sleeved with a first return spring.

[0007] Preferably, two protective covers are fixedly connected to the tops of the two sealing half rings, and a positioning groove is provided on the outer surface of one of the protective covers.

[0008] Preferably, a positioning block is fixedly connected to the outer surface of the other protective cover, and the positioning block matches the positioning groove.

[0009] Preferably, a second sliding groove is provided at the bottom of the fixed plate, and a second limiting hole is provided on the inner surfaces of the two sealing half rings.

[0010] Preferably, a second return spring is fixedly connected in the second sliding groove, and a second sliding block is slidably connected in the second sliding groove.

[0011] Preferably, the top end of the second sliding block is fixedly connected to the second return spring, and the bottom end of the second sliding block is fixedly connected to the second limit block.

[0012] Preferably, one side of the first limit block movably passes through the first slide groove and extends into the slot, one end of the pull rod movably passes through the first slide groove and extends to the outside of one of the sealing half rings, and one end of the pull rod is fixedly connected to a pull ring.

[0013] Compared with the prior art, the advantages and positive effects of the utility model are:

[0014] 1. In the utility model, one of the sealing half rings is sleeved on the outside of the fixed disk, and then the pull rod is pulled, so that the pull rod drives the first slider to slide in the first slide groove, and the first slider drives the first limit block to move synchronously, and at the same time the first return spring is squeezed and starts to shrink, and then the other sealing half ring is sleeved on the outside of the fixed disk, and the plug on the other sealing half ring is inserted into the corresponding slot, and then the pull rod is loosened, and under the elastic force of the first return spring, the first slider drives the first limit block to squeeze into the first limit hole, so that the two sealing half rings are fixed, and it is convenient to use.

[0015] 2. In the utility model, during the process of the two sealing semi-rings being sleeved on the fixed disk, the second limit block is subjected to force, so that the second limit block drives the second slider to slide into the second slide groove, and at the same time, the second return spring begins to shrink due to the squeezing of the second slider. When the two sealing semi-rings are sleeved to the target position, the second slider drives the second limit block to squeeze into the second limit hole under the elastic force of the second return spring, thereby improving the stability of the two sealing semi-rings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A main structure stereogram of a top cover structure for a hydraulic valve is provided for the utility model;

[0017] Figure 2 The utility model provides a bottom side structural stereogram of a top cover structure for a hydraulic valve;

[0018] Figure 3 The utility model provides a structural stereogram of a top cover body in a top cover structure for a hydraulic valve;

[0019] Figure 4 The utility model provides a three-dimensional cross-sectional structure diagram of a sealing half ring in a top cover structure for a hydraulic valve;

[0020] Figure 5 The utility model provides a three-dimensional cross-sectional structure diagram of another sealing half ring in a top cover structure for a hydraulic valve;

[0021] Figure 6 The utility model provides a three-dimensional cross-sectional structure diagram of a fixed disk in a top cover structure for a hydraulic valve;

[0022] Figure 7 for Figure 4 Enlarged view of point A in the middle.

[0023] Legend: 1. Hydraulic valve body; 2. Fixed plate; 3. Top cover body; 4. Sealing half ring; 5. Slot; 6. Insert plate; 7. First limiting hole; 8. First slide groove; 9. First slider; 10. First limiting block; 11. Pull rod; 12. First return spring; 13. Protective cover; 14. Positioning slot; 15. Positioning block; 16. Second slide groove; 17. Second limiting hole; 18. Second return spring; 19. Second slider; 20. Second limiting block; 21. Pull ring. DETAILED DESCRIPTION

[0024] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0026] Embodiment 1, as Figure 1 - Figure 7 As shown, the utility model provides a top cover structure for a hydraulic valve, comprising a hydraulic valve body 1, a fixed disk 2 is arranged on the outer surface of the hydraulic valve body 1, a top cover body 3 is arranged on the top of the hydraulic valve body 1, two sealing semi-rings 4 are sleeved on the outer surface of the fixed disk 2, a slot 5 is opened on one side of one of the sealing semi-rings 4, a plug plate 6 is fixedly connected to one side of the other sealing semi-ring 4, a first limiting hole 7 is opened on one side of the plug plate 6, a first slide groove 8 is opened inside one of the sealing semi-rings 4, a first slider 9 is slidably connected in the first slide groove 8, a first limiting block 10 is fixedly connected to one end of the first slider 9, a pull rod 11 is fixedly connected to the other end of the first slider 9, and a first return spring 12 is sleeved on the outer surface of the pull rod 11.

[0027] The effect achieved by the entire embodiment 1 is as follows: by sleeveing ​​one of the sealing half rings 4 on the outside of the fixed disk 2, and then pulling the pull rod 11, the pull rod 11 drives the first slider 9 to slide in the first slide groove 8, and the first slider 9 drives the first limit block 10 to move synchronously, and at the same time the first return spring 12 is squeezed and begins to shrink, and then the other sealing half ring 4 is sleeved on the outside of the fixed disk 2, and the plug 6 on the other sealing half ring 4 is inserted into the corresponding slot 5, and then the pull rod 11 is released, and under the elastic force of the first return spring 12, the first slider 9 drives the first limit block 10 to squeeze into the first limit hole 7, thereby fixing the two sealing half rings 4, which is convenient to use.

[0028] Embodiment 2, as Figure 1 - Figure 7 As shown, two protective covers 13 are fixedly connected to the tops of the two sealing semi-rings 4, a positioning groove 14 is provided on the outer surface of one of the protective covers 13, and a positioning block 15 is fixedly connected to the outer surface of the other protective cover 13, and the positioning block 15 matches the positioning groove 14. A second slide groove 16 is provided at the bottom of the fixed plate 2, and a second limiting hole 17 is provided on the inner surfaces of the two sealing semi-rings 4. A second return spring 18 is fixedly connected in the second slide groove 16, and a second slider 19 is slidably connected in the second slide groove 16. The top end of the second slider 19 is fixedly connected to the second return spring 18, and the bottom end of the second slider 19 is fixedly connected to the second limit block 20. One side of the first limit block 10 movably passes through the first slide groove 8 and extends into the slot 5. One end of the pull rod 11 movably passes through the first slide groove 8 and extends to the outside of one of the sealing semi-rings 4, and one end of the pull rod 11 is fixedly connected to a pull ring 21.

[0029] The effect achieved by the entire embodiment 2 is that when another sealing semi-ring 4 is sleeved on the outside of the fixed disk 2, since the width of the positioning block 15 is greater than that of the plug plate 6, the positioning block 15 is first inserted into the positioning groove 14, and then the plug plate 6 is inserted into the slot 5, which is convenient for positioning the position of the plug plate 6. The two protective covers 13 provided play a protective role to prevent the top cover body 3 from being damaged by external factors. In the process of the two sealing semi-rings 4 being sleeved on the fixed disk 2, the second limit block 20 is subjected to force, so that the second limit block 20 drives the second slider 19 to slide into the second slide groove 16, and at the same time, the second return spring 18 is squeezed by the second slider 19 and begins to shrink. When the two sealing semi-rings 4 are sleeved to the target position, under the elastic force of the second return spring 18, the second slider 19 drives the second limit block 20 to squeeze into the second limit hole 17, thereby improving the stability of the two sealing semi-rings 4, and then by providing a pull ring 21, it is convenient to pull the pull rod 11.

[0030] Working principle: When in use, one of the sealing half rings 4 is sleeved on the outside of the fixed disk 2, and then the pull ring 21 is pulled, so that the pull rod 11 drives the first slider 9 to slide in the first slide groove 8, and the first slider 9 drives the first limit block 10 to move synchronously, and at the same time, the first return spring 12 is squeezed and begins to shrink, and then the other sealing half ring 4 is sleeved on the outside of the fixed disk 2. Since the width of the positioning block 15 is greater than the plug plate 6, the positioning block 15 is first inserted into the positioning groove 14, and then the plug plate 6 is inserted into the corresponding slot 5. Then the pull ring 21 is released. Under the elastic force of the first return spring 12, the first slider 9 drives the first limit block 10 to squeeze into the first limit hole 7, thereby fixing the two sealing half rings 4. At the same time, the two sealing half rings 4 are sleeved on the fixed disk 2. During the process, the second limit block 20 is subjected to force. Since the second limit block 20 is in an arc structure, the second limit block 20 drives the second slider 19 to slide into the second slide groove 16. At the same time, the second return spring 18 is squeezed by the second slider 19 and begins to shrink. When the two sealing semi-rings 4 are sleeved to the target position, the second slider 19 drives the second limit block 20 to squeeze into the second limit hole 17 under the elastic force of the second return spring 18, thereby improving the stability of the two sealing semi-rings 4. When the two sealing semi-rings 4 are disassembled, first pull the pull ring 21 to make the first slider 9 drive the first limit block 10 to move, so that the first limit block 10 and the first limit hole 7 are separated, and then press the second limit block 20 to pull the two sealing semi-rings 4 out of the fixed disk 2 in turn, which is easy to use.

[0031] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A top cover structure for a hydraulic valve, comprising a hydraulic valve body (1), characterized in that: The outer surface of the hydraulic valve body (1) is provided with a fixed disk (2), the top of the hydraulic valve body (1) is provided with a top cover body (3), the outer surface of the fixed disk (2) is sleeved with two sealing semi-rings (4), one side of which is provided with a slot (5), one side of the other sealing semi-ring (4) is fixedly connected with a plug plate (6), one side of the plug plate (6) is provided with a first limiting hole (7), one side of the sealing semi-ring (4) is provided with a first sliding groove (8), a first slider (9) is slidably connected in the first sliding groove (8), one end of the first slider (9) is fixedly connected with a first limiting block (10), the other end of the first slider (9) is fixedly connected with a pull rod (11), and the outer surface of the pull rod (11) is sleeved with a first return spring (12).

2. A top cover structure for a hydraulic valve according to claim 1, characterized in that: Two protective covers (13) are fixedly connected to the tops of the two sealing half rings (4), and a positioning groove (14) is provided on the outer surface of one of the protective covers (13).

3. A top cover structure for a hydraulic valve according to claim 2, characterized in that: A positioning block (15) is fixedly connected to the outer surface of the other protective cover (13), and the positioning block (15) matches the positioning groove (14).

4. A top cover structure for a hydraulic valve according to claim 1, characterized in that: A second sliding groove (16) is provided at the bottom of the fixed plate (2), and a second limiting hole (17) is provided on the inner surface of the two sealing half rings (4).

5. A top cover structure for a hydraulic valve according to claim 4, characterized in that: A second return spring (18) is fixedly connected in the second sliding groove (16), and a second sliding block (19) is slidably connected in the second sliding groove (16).

6. A top cover structure for a hydraulic valve according to claim 5, characterized in that: The top end of the second sliding block (19) is fixedly connected to the second return spring (18), and the bottom end of the second sliding block (19) is fixedly connected to the second limiting block (20).

7. A top cover structure for a hydraulic valve according to claim 1, characterized in that: One side of the first limit block (10) is movable through the first slide groove (8) and extends into the slot (5), one end of the pull rod (11) is movable through the first slide groove (8) and extends to the outside of one of the sealing half rings (4), and one end of the pull rod (11) is fixedly connected to a pull ring (21).

Images