Large-diameter quick-release single-seat regulating valve

Abstract

The utility model discloses a large-caliber quick release type single-seat regulating valve, which relates to the technical field of valves and comprises a valve body, connecting pipes are arranged at two ends of the valve body, sealing flanges are arranged between the valve body and the connecting pipes, the valve body is connected with the connecting pipes through the sealing flanges and a first bolt assembly, and a second bolt assembly is arranged between the valve body and the connecting pipes. The top end and the bottom end of the joint of the sealing flange and the first bolt assemblies are sleeved with the large semicircular covers so that the sealing flange and the first bolt assemblies can be protected in a covering mode, the sealing flange and the first bolt assemblies can be prevented from being eroded by wind and rain, the two large semicircular covers can be disassembled and assembled through the second bolt assemblies on the lug plates, and the number of the second bolt assemblies is smaller than the total number of the first bolt assemblies. Therefore, under the condition that connection of the valve and a pipeline is not affected, the effect of quick disassembly during later disassembly of the valve body is achieved, even if the second bolt assembly is rusted on the lug plate in the later period, the large semicircular cover can be opened in a cutting mode, and the hidden danger that the first bolt assembly is cut, and a sealing flange is prone to being damaged is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a large-caliber quick-detachable single-seat regulating valve. Background Art

[0002] The working principle of the single-seat regulating valve is mainly to change the relative position between the valve core and the valve seat through the operating mechanism, so as to achieve the regulation of fluid flow. When the fluid passes through the valve, the valve core is affected by the control signal. This control signal can be electric, pneumatic or hydraulic. The control signal will change the pressure or displacement of the valve core, so that the valve core moves up and down in the valve seat. The movement of the valve core will change the flow area of ​​the valve, so as to regulate the flow of the fluid.

[0003] In the process of implementing this solution, the inventors found that the following problems in the prior art have not been well solved: traditional large-diameter single-seat regulating valves are basically detachably connected to the connected pipes through sealing flanges and bolts, but because the valve body is mostly installed outdoors, the connection between the bolts and the flange is often rusted under the erosion of rainwater, which makes it particularly troublesome to remove the bolts and brings inconvenience to the removal of the valve body. Utility Model Content

[0004] The main purpose of the utility model is to provide a large-caliber quick-release single-seat regulating valve, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A large-caliber quick-release single-seat regulating valve comprises a valve body, connecting pipes are arranged at both ends of the valve body, sealing flanges are arranged between the valve body and the connecting pipe, a plurality of bolt assemblies are installed between two adjacent sealing flanges, and the two adjacent sealing flanges are detachably connected by bolt assemblies, and large semicircular covers are sleeved on the outer top and bottom ends between the two adjacent sealing flanges, ear plates are fixed at both ends of the adjacent outer walls of the large semicircular covers, bolt assemblies are installed between the two perpendicular ear plates, and the two perpendicular ear plates are detachably connected by bolt assemblies, and sheet-shaped sealing gaskets are bonded to the adjacent sides of the two large semicircular covers at both ends, small semicircular covers are fixed at both ends of the large semicircular covers, and semicircular sealing gaskets are bonded to the inner walls of the small semicircular covers, and raw tapes are wrapped around the outer walls of the two ends of the valve body and the outer walls of the connecting pipes.

[0007] Preferably, the two sheet-shaped sealing gaskets at both ends are in contact with each other at their adjacent sides, and the sheet-shaped sealing gaskets are respectively integrated with the semicircular sealing gaskets that match their positions.

[0008] Preferably, the inner walls of the semicircular sealing gasket are in contact with the outer walls of the raw tape respectively.

[0009] Preferably, a plurality of drying bags are embedded inside the large semicircular cover.

[0010] Preferably, the width of the raw tape is greater than the width of the semicircular sealing gasket.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. The valve body and the connecting pipe are connected through a sealing flange and a bolt assembly 1, and large semicircular covers are provided at the top and bottom of the connection between the sealing flange and the bolt assembly 1 to cover and protect them from being eroded by wind and rain. The two large semicircular covers are detachable through bolt assemblies 2 on the ear plates. The number of bolt assemblies 2 is less than the total number of bolt assemblies 1, so that the valve body can be quickly disassembled at a later time without affecting the connection between the valve and the pipeline. Even if the bolt assembly 2 is corroded on the ear plate at a later time, the large semicircular cover can be opened by cutting, avoiding the hidden danger of damaging the sealing flange due to cutting of the bolt assembly 1.

[0013] 2. When the two large semicircular covers are sleeved on the outer wall of the sealing flange position, the small semicircular cover will be sleeved on the outer wall between the valve body and the connecting pipe. The large semicircular covers are sealed by a sheet-shaped sealing gasket, and the small semicircular covers are sealed by the semicircular sealing gasket contacting the valve body and the raw tape on the outer wall of the connecting pipe, so as to prevent humid air from entering the interior of the large semicircular cover and causing rust to the bolt assembly 1, thereby increasing the protection effect of the bolt assembly 1. Even if some humid gas enters the interior of the large semicircular cover, it can be absorbed by the drying bag arranged in the large semicircular cover to ensure the dryness of the space inside the large semicircular cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural schematic diagram of a large-caliber quick-release single-seat regulating valve of the utility model;

[0015] Figure 2 It is a schematic diagram of the separation structure of a partial large semicircular cover, a valve body and a connecting pipe of a large-caliber quick-detachable single-seat regulating valve of the utility model;

[0016] Figure 3 It is a schematic diagram of the enlarged structure of the A position of the large-caliber quick-release single-seat regulating valve of the utility model;

[0017] Figure 4 It is a schematic diagram of the enlarged structure of point B of the large-caliber quick-release single-seat regulating valve of the utility model.

[0018] In the figure: 1. valve body; 2. connecting pipe; 3. sealing flange; 4. bolt assembly 1; 5. large semicircular cover; 6. ear plate; 7. bolt assembly 2; 8. sheet-shaped sealing gasket; 9. small semicircular cover; 10. semicircular sealing gasket; 11. drying bag; 12. raw tape. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] like Figure 1-4 As shown, a large-caliber quick-release single-seat regulating valve comprises a valve body 1, connecting pipes 2 are arranged at both ends of the valve body 1, sealing flanges 3 are arranged between the valve body 1 and the connecting pipe 2, a plurality of bolt assemblies 4 are installed between two adjacent sealing flanges 3, and the two adjacent sealing flanges 3 are detachably connected by bolt assemblies 4, a large semicircular cover 5 is sleeved on the outer top and bottom ends between the two adjacent sealing flanges 3, ear plates 6 are fixed at both ends of the adjacent outer walls of the large semicircular cover 5, bolt assemblies 2 7 are installed between two perpendicular ear plates 6, and the two perpendicular ear plates 6 are detachably connected by bolt assemblies 2 7, a sheet-shaped sealing gasket 8 is bonded to one side of the two large semicircular covers 5 at both ends, a small semicircular cover 9 is fixed at both ends of the large semicircular cover 5, a semicircular sealing gasket 10 is bonded to the inner wall of the small semicircular cover 9, and raw tape 12 is wrapped around the outer walls of the two ends of the valve body 1 and the outer wall of the connecting pipe 2.

[0021] Specifically, a plurality of drying bags 11 are embedded inside the large semicircular cover 5, which can absorb moisture from some humid gas entering the large semicircular cover 5 to ensure that the interior is dry. The material of the drying bag 11 can be selected according to needs and is not restricted in this application.

[0022] Specifically, the two sheet-shaped sealing gaskets 8 at both ends are in contact with each other on their adjacent sides, and the sheet-shaped sealing gaskets 8 are respectively integrated with the semicircular sealing gaskets 10 that match their positions, and the inner walls of the semicircular sealing gaskets 10 are respectively in contact with the outer walls of the raw tape 12, and the width of the raw tape 12 is greater than that of the semicircular sealing gaskets 10, thereby achieving a better sealing effect.

[0023] Working principle: the valve body 1 and the connecting pipe 2 are connected through the sealing flange 3 and the bolt assembly 1 4, and the large semicircular cover 5 is set at the top and bottom of the connection between the sealing flange 3 and the bolt assembly 1 4 to cover and protect it to prevent it from being eroded by wind and rain. The two large semicircular covers 5 are detachable through the bolt assembly 2 7 on the ear plate 6. The number of bolt assemblies 2 7 is less than the total number of bolt assemblies 1 4, so that the valve body 1 can be quickly disassembled at a later time without affecting the connection between the valve and the pipeline. Even if the bolt assembly 2 7 is corroded on the ear plate 6 at a later time, the large semicircular cover 5 can be opened by cutting, avoiding cutting of the bolt assembly 4 and easily damaging the sealing flange 3. To avoid the hidden danger of damage, when the two large semicircular covers 5 are sleeved on the outer wall of the sealing flange 3, the small semicircular cover 9 will be sleeved on the outer wall between the valve body 1 and the connecting pipe 2. The large semicircular covers 5 are sealed by the sheet-shaped sealing gasket 8, and the small semicircular covers 9 are sealed by the semicircular sealing gasket 10 contacting the raw tape 12 on the outer wall of the valve body 1 and the connecting pipe 2, so as to prevent humid air from entering the interior of the large semicircular cover 5 and causing rust to the bolt assembly 4, thereby increasing the protection effect of the bolt assembly 4. Even if some humid gas enters the interior of the large semicircular cover 5, it can be absorbed by the drying bag 11 arranged in the large semicircular cover 5 to ensure the dryness of the space inside the large semicircular cover 5.

[0024] The circuits, electronic components and control modules involved are all prior art and can be fully implemented by those skilled in the art. Needless to say, the content protected by the utility model does not involve improvements to software and methods.

[0025] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A large-caliber quick-release single-seat regulating valve, comprising a valve body (1), characterized in that: Both ends of the valve body (1) are provided with connecting pipes (2), and sealing flanges (3) are provided between the valve body (1) and the connecting pipe (2). A plurality of bolt assemblies (4) are installed between two adjacent sealing flanges (3), and the two adjacent sealing flanges (3) are detachably connected by bolt assemblies (4). The top and bottom ends of the outer portions of the two adjacent sealing flanges (3) are sleeved with large semicircular covers (5), and the two ends of the adjacent outer walls of the large semicircular covers (5) are fixed with ear plates (6) that are perpendicular to each other. A bolt assembly 2 (7) is installed between the two straight ear plates (6), and the two perpendicular ear plates (6) are detachably connected by the bolt assembly 2 (7), the two large semicircular covers (5) at both ends are bonded with sheet-shaped sealing gaskets (8) on the adjacent sides, small semicircular covers (9) are fixed at both ends of the large semicircular covers (5), and the inner walls of the small semicircular covers (9) are bonded with semicircular sealing gaskets (10), and the outer walls of the two ends of the valve body (1) and the outer wall of the connecting pipe (2) are wrapped with raw tape (12).

2. The large-caliber quick-release single-seat regulating valve according to claim 1 is characterized in that: The two sheet-shaped sealing pads (8) at the two ends are in contact with each other at their adjacent sides, and the sheet-shaped sealing pads (8) are respectively integrated with the semicircular sealing pads (10) at matching positions.

3. The large-caliber quick-release single-seat regulating valve according to claim 1 is characterized in that: The inner walls of the semicircular sealing pad (10) are in contact with the outer walls of the raw rubber tape (12) respectively.

4. The large-caliber quick-release single-seat regulating valve according to claim 1 is characterized in that: A plurality of drying bags (11) are embedded inside the large semicircular cover (5).

5. The large-caliber quick-release single-seat regulating valve according to claim 1, characterized in that: The width of the raw adhesive tape (12) is greater than the width of the semicircular sealing gasket (10).

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