Leakage-proof hydraulic control valve

Abstract

The utility model relates to the technical field of hydraulic control valves, in particular to a leakproof hydraulic control valve which comprises a main body and a valve body, a water inlet pipe is fixedly connected to one side of the valve body, a water outlet pipe is fixedly connected to the other side of the valve body, and a valve cover is connected to the surface of the valve body through a bolt assembly. The surfaces of the water inlet pipe and the water outlet pipe are connected with connecting pipes through bolt assemblies. The leakage-proof mechanism comprises a mounting pipe. The installation pipes are arranged at the connecting positions of the connecting pipe and the water inlet pipe and the water outlet pipe respectively, so that the installation pipes can seal the connecting positions, water leakage caused by loosening of the bolt assembly due to vibration is avoided, the sealing rings are arranged between the water inlet pipe and the connecting pipe and between the water outlet pipe and the connecting pipe, and the sealing rings seal the connecting positions. And the two groups of mounting pipes can be respectively fixed in the water inlet pipe and the water outlet pipe through the connection of the screw rod and the nut.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic control valves, in particular to a leak-proof hydraulic control valve. Background Art

[0002] Hydraulic control valve is a general term for a series of control valves, which entered China in the 1990s. They are generally inlet control float valves, adjustable pressure reducing valves, slow closing check valves and other products. They can be widely used in the pipelines of construction, fire protection, water plant and other systems to achieve water flow control.

[0003] During the use of the hydraulic control valve, both sides of the valve need to be connected to the connecting pipe via a bolt assembly. However, during the use of the existing hydraulic control valve, the water flow causes the entire hydraulic control valve to vibrate under long-term flow, which can easily cause the connection of the bolt assembly to loosen, causing the connection to leak before regular maintenance. Utility Model Content

[0004] The purpose of the utility model is to provide a leak-proof hydraulic control valve to solve the problem that during the use of the hydraulic control valve proposed in the above background technology, the water flow drives the entire hydraulic control valve to vibrate under long-term flow, which easily causes the connection of the bolt assembly to loosen, causing the connection to leak before regular maintenance.

[0005] To achieve the above object, the utility model provides the following technical solution, a leakproof hydraulic control valve, comprising:

[0006] The main body comprises a valve body, one side of the valve body is fixedly connected to a water inlet pipe, the other side of the valve body is fixedly connected to a water outlet pipe, the surface of the valve body is connected to a valve cover via a bolt assembly, and the surfaces of the water inlet pipe and the water outlet pipe are connected to connecting pipes via a bolt assembly;

[0007] The anti-leakage mechanism includes a mounting tube, which is plugged into the inner surface of the water inlet pipe, a fixing block is fixedly connected to the inner surface of the mounting tube, a locking groove is provided on the surface of the fixing block, a screw is fixedly connected to the inner surface of the water inlet pipe, a nut is installed on the surface of the screw, a first annular groove is provided on the surface of the water inlet pipe, a second annular groove is provided on the surface of the connecting tube, and a sealing ring is installed on the surface of the first annular groove.

[0008] Preferably, the mounting tube, screw rod and first annular groove are provided in two groups, one group of the mounting tube, screw rod and first annular groove are provided on the surface of the water inlet pipe, and the other group of the mounting tube, screw rod and first annular groove are provided on the surface of the water outlet pipe. The fixing blocks are provided in two groups, and the two groups of the fixing blocks are fixedly connected to both sides of the mounting tube. The engaging grooves are provided in two groups.

[0009] Preferably, the number of the engaging grooves in each group is two, one group of the engaging grooves is opened on the surface of the fixed block, and the other group of the engaging grooves is opened on the surface of the mounting tube, the screw is engaged and connected to the surface of the engaging groove, the nut is connected to the surface of the screw through a thread, and the nut is abutted and connected to the surface of the fixed block.

[0010] Preferably, the inner diameter of the second annular groove is larger than the inner diameter of the connecting pipe, one side of the sealing ring is snap-connected to the surface of the first annular groove, and the other side of the sealing ring is plug-connected to the surface of the second annular groove, and the cross-section of the first annular groove and the sealing ring is "L" shaped.

[0011] Preferably, a filtering mechanism is provided on the inner surface of the water inlet pipe, and the filtering mechanism includes a filter plate, which is installed on the inner surface of the water inlet pipe, and a connecting hole is provided on the surface of the filter plate. A ring plate is fixedly connected to the inner surface of the water inlet pipe, and a plug rod is fixedly connected to the surface of the ring plate. A through hole is provided on the surface of the water inlet pipe, and a discharge pipe is fixedly connected to the outer surface of the water inlet pipe, and a threaded plug is installed on the inner surface of the discharge pipe.

[0012] Preferably, the outer diameter of the filter plate is the same as the inner diameter of the water inlet pipe, and four groups of connecting holes and plug-in rods are provided, the four groups of connecting holes are opened at the four ends of the filter plate, the four groups of plug-in rods are fixedly connected to the four ends of the ring plate, and the plug-in rods are plug-connected to the surface of the connecting holes.

[0013] Preferably, the diameter of the through hole is the same as the inner diameter of the discharge pipe, one side of the threaded plug is connected to the inner surface of the discharge pipe by a thread, and the other side of the threaded plug is abutted and connected to the surface of the discharge pipe.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. By arranging installation pipes at the joints between the connecting pipe and the water inlet pipe and the water outlet pipe, the installation pipes can seal the joints to prevent water leakage caused by loosening of the bolt assembly due to vibration. Sealing rings are arranged between the water inlet pipe and the connecting pipe, and between the water outlet pipe and the connecting pipe, so that the sealing rings can seal the joints to further prevent leakage. The two sets of installation pipes can be fixed in the water inlet pipe and the water outlet pipe respectively through the connection of screws and nuts.

[0016] 2. By arranging a filter plate in the water inlet pipe, the filter plate can filter the water flowing into the valve body to prevent impurities in the water flow from entering the valve body to form a blockage and make it difficult to clean. The filter plate and the ring plate are connected through connecting holes and plug-in rods to achieve a filtering effect on the installation of the filter plate, and a through hole is opened under the water inlet pipe so that the filtered impurities can be discharged from the discharge pipe regularly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of a frontal three-dimensional cross-sectional view of the structure of the utility model;

[0018] Figure 2 It is a left-side perspective schematic diagram of the structure of the utility model;

[0019] Figure 3 It is a three-dimensional schematic diagram of the structure of the installation pipe of the utility model;

[0020] Figure 4 It is a partial three-dimensional cross-sectional schematic diagram of the structure of the discharge pipe of the utility model;

[0021] Figure 5 For this utility model Figure 3 Schematic diagram of the enlarged structure at point A in the middle.

[0022] In the figure: 1. valve body; 11. water inlet pipe; 12. water outlet pipe; 13. valve cover; 14. connecting pipe; 2. mounting pipe; 21. fixing block; 22. engaging groove; 23. screw rod; 24. nut; 25. first ring groove; 26. second ring groove; 27. sealing ring; 3. filter plate; 31. connecting hole; 32. ring plate; 33. plug-in rod; 34. through hole; 35. discharge pipe; 36. threaded plug. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-5 , an embodiment provided by the utility model:

[0025] A leakproof hydraulic control valve, comprising:

[0026] The main body includes a valve body 1, one side of the valve body 1 is fixedly connected with an inlet pipe 11, the other side of the valve body 1 is fixedly connected with an outlet pipe 12, the surface of the valve body 1 is connected with a valve cover 13 through a bolt assembly, the surfaces of the inlet pipe 11 and the outlet pipe 12 are connected with a connecting pipe 14 through a bolt assembly, and the inlet pipe 11 and the outlet pipe 12 installed on both sides of the valve body 1 are respectively connected with the connecting pipe 14 through the bolt assembly, so that water flows into the connecting pipe 14 on one side of the inlet pipe 11 and flows out of the outlet pipe 12 through the valve body 1, and the purpose of valve control of water flow is achieved by setting the device in the valve body 1;

[0027] The anti-leakage mechanism includes a mounting tube 2, which is plugged into the inner surface of the water inlet pipe 11, a fixing block 21 is fixedly connected to the inner surface of the mounting tube 2, a locking groove 22 is provided on the surface of the fixing block 21, a screw rod 23 is fixedly connected to the inner surface of the water inlet pipe 11, a nut 24 is installed on the surface of the screw rod 23, a first annular groove 25 is provided on the surface of the water inlet pipe 11, a second annular groove 26 is provided on the surface of the connecting pipe 14, a sealing ring 27 is installed on the surface of the first annular groove 25, one side of the two groups of mounting tubes 2 are respectively plugged into the water inlet pipe 11 and the water outlet pipe 12, and the other sides are respectively inserted into the two groups of connecting pipes 14, so as to achieve sealing of the connection between the connecting pipe 14 and the water inlet pipe 11, and the connection between the connecting pipe 14 and the water outlet pipe 12.

[0028] Furthermore, two groups of mounting tubes 2, screw rods 23 and first annular grooves 25 are provided, one group of mounting tubes 2, screw rods 23 and first annular grooves 25 are provided on the surface of the water inlet pipe 11, and the other group of mounting tubes 2, screw rods 23 and first annular grooves 25 are provided on the surface of the water outlet pipe 12. Two groups of fixing blocks 21 are provided, and the two groups of fixing blocks 21 are fixedly connected to both sides of the mounting tube 2. Two groups of engaging grooves 22 are provided. Under the action of the fixing blocks 21, the nuts 24 can be more tightly fitted with the connection during the tightening process to prevent water from seeping out of the connection. The number of each group of screw rods 23 is two and they are respectively installed on both sides of the water inlet pipe 11 and the water outlet pipe 12.

[0029] Furthermore, there are two sets of engaging grooves 22, one set of engaging grooves 22 is opened on the surface of the fixing block 21, and the other set of engaging grooves 22 is opened on the surface of the mounting tube 2, the screw rod 23 is engaged with the surface of the engaging groove 22, the nut 24 is connected to the surface of the screw rod 23 by a thread, and the nut 24 is abutted against the surface of the fixing block 21, and the screw rod 23 is engaged with its surface by the action of the two sets of engaging grooves 22 to realize the installation of the mounting tube 2, and under the connection of the screw rod 23 and the nut 24, the mounting tube 2 is respectively fixed in the water inlet pipe 11 and the water outlet pipe 12.

[0030] Furthermore, the inner diameter of the second annular groove 26 is larger than the inner diameter of the connecting pipe 14, one side of the sealing ring 27 is snap-connected to the surface of the first annular groove 25, and the other side of the sealing ring 27 is plug-connected to the surface of the second annular groove 26, the cross-section of the first annular groove 25 and the sealing ring 27 is "L"-shaped, the inner diameter of the sealing ring 27 is the same as the inner diameter of the second annular groove 26, the sealing ring 27 is made of a rubber material that can be twisted and deformed, and can be installed on the water inlet pipe 11 and the water outlet pipe 12 through the first annular groove 25, and the connection is further sealed when the connecting pipe 14 is installed to achieve a leak-proof effect.

[0031] Furthermore, a filtering mechanism is provided on the inner surface of the water inlet pipe 11, and the filtering mechanism includes a filter plate 3, which is installed on the inner surface of the water inlet pipe 11, and a connecting hole 31 is provided on the surface of the filter plate 3, and a ring plate 32 is fixedly connected to the inner surface of the water inlet pipe 11, and a plug rod 33 is fixedly connected to the surface of the ring plate 32, and a through hole 34 is provided on the surface of the water inlet pipe 11, and a discharge pipe 35 is fixedly connected to the outer surface of the water inlet pipe 11, and a threaded plug 36 is installed on the inner surface of the discharge pipe 35. Under the action of the ring plate 32, the filter plate 3 can be installed so that it fits on the ring plate 32 to achieve a filtering effect.

[0032] Furthermore, the outer diameter of the filter plate 3 is the same as the inner diameter of the water inlet pipe 11, and four groups of connecting holes 31 and plug-in rods 33 are provided. The four groups of connecting holes 31 are opened at the four ends of the filter plate 3, and the four groups of plug-in rods 33 are fixedly connected to the four ends of the ring plate 32. The plug-in rods 33 are plugged and connected to the surface of the connecting holes 31. Through the connection between the connecting holes 31 and the plug-in rods 33, the filter plate 3 is installed on the ring plate 32, so that the water flows through the water inlet pipe 11. It is filtered by the filter plate 3.

[0033] Furthermore, the diameter of the through hole 34 is the same as the inner diameter of the discharge pipe 35, one side of the threaded plug 36 is connected to the inner surface of the discharge pipe 35 by a thread, and the other side of the threaded plug 36 is abutted against the surface of the discharge pipe 35. By opening the through hole 34 on the water inlet pipe 11, accumulated debris can be discharged from the through hole 34, and under the connection between the discharge pipe 35 and the threaded plug 36, the operator can periodically open the threaded plug 36 to clean up the debris.

[0034] Working principle: Before installing the hydraulic control valve, first insert the two sets of installation pipes 2 into the water inlet pipe 11 and the water outlet pipe 12 respectively, so that the screw 23 is engaged with the two sets of engagement grooves 22, and the nut 24 is installed on the screw 23 through threads and abuts against the surface of the fixing block 21 to achieve the installation and fixation of the installation pipe 2, and then squeeze and engage the sealing ring 27 in the first annular groove 25. At this time, when the connecting pipe 14 is installed, its inner surface and the installation pipe 2 are inserted, and then the sealing ring 27 is inserted into the second annular groove 26, and finally the connection of the connecting pipe 14 is leak-proof.

[0035] Before the water flows into the hydraulic control valve, the filter plate 3 is first inserted from the opening of the water inlet pipe 11 so that it is installed on the ring plate 32. When it is attached to the ring plate 32, the four sets of plug-in rods 33 will be correspondingly inserted into the connecting holes 31. After the water flows in, it will be filtered by the filter plate 3, and the filtered impurities will pass through the through hole 34 and remain in the discharge pipe 35. During regular maintenance, the threaded plug 36 can be removed from the discharge pipe 35 by threading to clean out the impurities.

[0036] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A leakproof hydraulic control valve, characterized in that: include: The main body comprises a valve body (1), one side of the valve body (1) is fixedly connected to a water inlet pipe (11), the other side of the valve body (1) is fixedly connected to a water outlet pipe (12), the surface of the valve body (1) is connected to a valve cover (13) via a bolt assembly, and the surfaces of the water inlet pipe (11) and the water outlet pipe (12) are connected to a connecting pipe (14) via a bolt assembly; The anti-leakage mechanism comprises a mounting tube (2), the mounting tube (2) being plugged and connected to the inner surface of a water inlet pipe (11), the inner surface of the mounting tube (2) being fixedly connected to a fixing block (21), the surface of the fixing block (21) being provided with a snap-fit ​​groove (22), the inner surface of the water inlet pipe (11) being fixedly connected to a screw rod (23), the surface of the screw rod (23) being provided with a nut (24), the surface of the water inlet pipe (11) being provided with a first annular groove (25), the surface of the connecting tube (14) being provided with a second annular groove (26), and the surface of the first annular groove (25) being provided with a sealing ring (27).

2. A leakproof hydraulic control valve according to claim 1, characterized in that: The mounting tube (2), the screw rod (23) and the first annular groove (25) are provided in two groups, one group of the mounting tube (2), the screw rod (23) and the first annular groove (25) is provided on the surface of the water inlet pipe (11), and the other group of the mounting tube (2), the screw rod (23) and the first annular groove (25) is provided on the surface of the water outlet pipe (12). The fixing blocks (21) are provided in two groups, and the two groups of the fixing blocks (21) are fixedly connected to the two sides of the mounting tube (2). The engaging grooves (22) are provided in two groups.

3. A leakproof hydraulic control valve according to claim 2, characterized in that: The number of each group of the engaging grooves (22) is two, one group of the engaging grooves (22) is formed on the surface of the fixing block (21), and the other group of the engaging grooves (22) is formed on the surface of the mounting tube (2), the screw rod (23) is engaged with the surface of the engaging groove (22), the nut (24) is connected to the surface of the screw rod (23) by means of a thread, and the nut (24) is abutted against the surface of the fixing block (21).

4. The leakproof hydraulic control valve according to claim 1, characterized in that: The inner diameter of the second annular groove (26) is larger than the inner diameter of the connecting pipe (14); one side of the sealing ring (27) is snap-fitted to the surface of the first annular groove (25); the other side of the sealing ring (27) is plug-fitted to the surface of the second annular groove (26); and the cross-sections of the first annular groove (25) and the sealing ring (27) are in an "L" shape.

5. The leakproof hydraulic control valve according to claim 1, characterized in that: The inner surface of the water inlet pipe (11) is provided with a filtering mechanism, the filtering mechanism comprising a filter plate (3), the filter plate (3) being mounted on the inner surface of the water inlet pipe (11), the surface of the filter plate (3) being provided with a connecting hole (31), the inner surface of the water inlet pipe (11) being fixedly connected with a ring plate (32), the surface of the ring plate (32) being fixedly connected with a plug rod (33), the surface of the water inlet pipe (11) being provided with a through hole (34), the outer surface of the water inlet pipe (11) being fixedly connected with a discharge pipe (35), the inner surface of the discharge pipe (35) being provided with a threaded plug (36).

6. A leakproof hydraulic control valve according to claim 5, characterized in that: The outer diameter of the filter plate (3) is the same as the inner diameter of the water inlet pipe (11); four groups of connecting holes (31) and plug-in rods (33) are provided; the four groups of connecting holes (31) are opened at four ends of the filter plate (3); the four groups of plug-in rods (33) are fixedly connected to the four ends of the ring plate (32); and the plug-in rods (33) are plugged and connected to the surface of the connecting holes (31).

7. The leakproof hydraulic control valve according to claim 5, characterized in that: The diameter of the through hole (34) is the same as the inner diameter of the discharge pipe (35); one side of the threaded plug (36) is connected to the inner surface of the discharge pipe (35) through a thread, and the other side of the threaded plug (36) is abutted against the surface of the discharge pipe (35).

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