Pressure reduction structure for high-pressure-resistant flow-equalizing collecting pipe

Abstract

The utility model relates to the technical field of pressure reducing devices, discloses a pressure reducing structure for a high-pressure-resistant flow-equalizing collecting pipe, and solves the problem that the practicability is greatly reduced due to the fact that a pressure reducing mechanism cannot play a pressure reducing role when dealing with full-load water operation. A pressure reducing assembly is arranged in the middle of the flow dividing pipe, flange plates are arranged at the two ends of the pressure reducing assembly, the pressure reducing assembly comprises a flow discharging pipe, a valve element is arranged in the flow discharging pipe and comprises a fixing block, a telescopic rod is arranged at the lower end of the fixing block, a valve is arranged at the lower end of the telescopic rod, a groove is formed in the upper end of the valve, and a spring is arranged in the groove. A sealing piece is arranged on the outer side of the valve, a threaded rod is arranged at the upper end of the fixing block and is in threaded connection with the drainage pipe, and after the pressure intensity in the collecting pipe reaches a certain value, due to the arrangement of the spring and the telescopic rod, water flow jacks the valve so that the valve can be communicated with a follow-up flow dividing pipe, and flow dividing and pressure reducing of the collecting pipe are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure reducing devices, in particular to a pressure reducing structure for a high-pressure resistant flow-equalizing collecting pipe. Background Art

[0002] In the gas fire extinguishing system network, the collecting pipe connected to each fire extinguishing agent storage bottle has a relatively high pressure inside. When it reaches a certain value, it needs to be decompressed, otherwise it will cause damage to the main body.

[0003] The existing Chinese patent with publication number CN219570976U discloses an angle valve pressure reducing structure, which belongs to the technical field of angle valves. The angle valve pressure reducing structure valve includes a connecting pipe, a bypass pipe is fixedly connected to the circumferential surface of the connecting pipe, a placement groove, the placement groove is arranged at the lower end of the connecting pipe, and a sealing plate. The sealing plate is rotatably connected to an inner wall of one side of the placement groove through a rotating shaft. When water flows into the bypass pipe through the connecting pipe, the sealing plate rotates and pushes the buffer block back, and then the water flows into the bypass pipe. When the flow stops, the telescopic rod can push the sealing plate back to close it, and then the water flow will impact the buffer block, causing the connecting rod to move, and the squeezing spring to absorb the impact force of the water flow backflow, thereby preventing the water hammer effect from causing damage to the device. However, this device is more effective when the water volume in the pipe is not full, but when the water volume is fully loaded, the mechanism cannot play a pressure reducing role, and its practicality is greatly reduced. Utility Model Content

[0004] The utility model aims to provide a pressure reducing structure for a high-pressure resistant and uniform flow collecting pipe. By adopting the device to work, the problem that the pressure reducing mechanism fails to reduce pressure when operating at full water load, thus greatly reducing the practicality is solved.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pressure reducing structure for a high-pressure resistant uniform flow collecting pipe, comprising a collecting pipe, a shunt pipe is arranged on one side of the collecting pipe, a pressure reducing assembly is arranged in the middle of the shunt pipe, flange interfaces are arranged at both ends of the pressure reducing assembly, the pressure reducing assembly comprises a discharge pipe, a valve core is movably arranged inside the discharge pipe, the valve core comprises a fixed block, a telescopic rod is fixedly arranged at the lower end of the fixed block, a valve is fixedly arranged at the lower end of the telescopic rod, a groove is opened at the upper end of the valve, a spring is fixedly arranged in the groove, a sealing member is arranged on the outer side of the valve, a threaded rod is fixedly arranged at the upper end of the fixed block, the threaded rod is threadedly connected to the discharge pipe, the valve core is fixed inside the discharge pipe by the threaded rod and the discharge pipe, when the pressure in the collecting pipe reaches a certain value, due to the arrangement of the spring and the telescopic rod, the water flow lifts the valve, thereby forming a connection with the subsequent shunt pipe, thereby realizing the shunt pressure reducing of the collecting pipe.

[0006] Preferably, a pressure gauge is fixedly provided at one end of the decompression assembly, and the pressure in the pipe can be monitored and displayed in real time by the pressure gauge, so that people can collect and observe the data conveniently.

[0007] Preferably, the flange interface includes flange one, one side of which is bolted to flange two, and through holes are provided inside flange one and flange two, and flange one and flange two are tightly contacted together by bolts to prevent water from being squeezed out, and the through holes allow water to pass through unimpeded. This structure is easy to disassemble and assemble, and is convenient for maintenance and replacement, greatly improving the practicability of the device.

[0008] Preferably, the drainage pipe includes a fixed plate, a semicircular tube 1 is fixedly provided on the upper end of the fixed plate, a semicircular tube 2 is fixedly provided on the lower end of the fixed plate, a hole 1 is penetrated through the middle of the fixed plate, a hole 2 is penetrated through the fixed plate located next to the hole 1, a threaded hole is penetrated through the surface of the semicircular tube 1, an annular groove is provided on the surface of the fixed plate, and the threaded hole is threadedly connected to the threaded rod so that the valve core can move up and down inside the drainage pipe, the hole 1 fits tightly with the valve to prevent the stealing of water, and the annular groove is embedded with the seal to further enhance the airtightness.

[0009] Preferably, the wall of the semicircular tube 2 is thicker than that of the semicircular tube 1. The thick wall of the semicircular tube 2 can better cope with the high pressure in the collecting pipe without breaking, while the thin wall of the semicircular tube 1 can achieve rapid flow discharge when the pressure is reduced and the two wall thicknesses meet different usage requirements, greatly improving the practicability of the device.

[0010] Preferably, an annular handle is fixedly provided on the outer side of the upper end of the threaded rod, and the threaded rod is driven to rotate by rotating the annular handle to realize the up and down movement of the valve core. This structure can prevent the internal structure of the valve core from failing to realize automatic decompression and flow discharge if an emergency occurs. It can be manually determined whether manual decompression and flow discharge are required based on the pressure display of the pressure gauge.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] The utility model proposes a pressure reducing structure for a high-pressure flow-uniform collecting pipe, comprising a collecting pipe, a shunt pipe is arranged on one side of the collecting pipe, a pressure reducing assembly is arranged in the middle of the shunt pipe, flange interfaces are arranged at both ends of the pressure reducing assembly, the pressure reducing assembly comprises a discharge pipe, a valve core is movably arranged inside the discharge pipe, the valve core comprises a fixed block, a telescopic rod is fixedly arranged at the lower end of the fixed block, a valve is fixedly arranged at the lower end of the telescopic rod, a groove is opened at the upper end of the valve, a spring is fixedly arranged in the groove, a sealing member is arranged on the outer side of the valve, a threaded rod is fixedly arranged at the upper end of the fixed block, the threaded rod is threadedly connected to the discharge pipe, the valve core is fixed inside the discharge pipe through the threaded rod and the discharge pipe, when the pressure in the collecting pipe reaches a certain value, due to the arrangement of the spring and the telescopic rod, the water flow lifts the valve, thereby forming a connection with the subsequent shunt pipe, thereby realizing the shunt pressure reducing of the collecting pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the pressure reducing assembly of the utility model;

[0015] Figure 3 This is a schematic diagram of the flange interface structure of the utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the drain pipe of the utility model;

[0017] Figure 5 This is a schematic diagram of the valve core structure of the utility model.

[0018] In the figure: 1. collecting pipe; 2. shunt pipe; 3. flange interface; 31. flange plate 1; 32. flange plate 2; 33. through hole; 4. pressure reducing assembly; 41. discharge pipe; 411. fixing plate; 412. semicircular tube 1; 413. semicircular tube 2; 414. hole 2; 415. threaded hole; 416. hole 1; 417. annular groove; 42. valve core; 421. fixing block; 422. telescopic rod; 423. valve; 424. spring; 425. sealing element; 426. threaded rod; 427. ring handle; 428. groove; 43. pressure gauge. DETAILED DESCRIPTION

[0019] 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.

[0020] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings.

[0021] Combination Figure 1-2 , Figure 5 A pressure reducing structure for a high-pressure resistant and uniform flow collecting pipe comprises a collecting pipe 1, a shunt pipe 2 is arranged on one side of the collecting pipe 1, a pressure reducing assembly 4 is arranged in the middle of the shunt pipe 2, flange interfaces 3 are arranged at both ends of the pressure reducing assembly 4, the pressure reducing assembly 4 comprises a discharge pipe 41, a valve core 42 is movably arranged inside the discharge pipe 41, the valve core 42 comprises a fixed block 421, a telescopic rod 422 is fixedly arranged at the lower end of the fixed block 421, a valve 423 is fixedly arranged at the lower end of the telescopic rod 422, a groove 428 is opened at the upper end of the valve 423, and the groove 428 is opened at the upper end of the valve 423. A spring 424 is fixedly provided inside 28, a seal 425 is provided on the outside of the valve 423, a threaded rod 426 is fixedly provided on the upper end of the fixed block 421, the threaded rod 426 is threadedly connected to the discharge pipe 41, and the valve core 42 is fixed inside the discharge pipe 41 through the threaded connection with the discharge pipe 41 by the threaded rod 426. When the pressure in the collecting pipe 1 reaches a certain value, due to the setting of the spring 424 and the telescopic rod 422, the water flow lifts the valve 423, thereby forming a connection with the subsequent diversion pipe 2, thereby realizing the diversion and pressure reduction of the collecting pipe 1.

[0022] Combination Figure 2 A pressure gauge 43 is fixedly provided at one end of the pressure reducing assembly 4, and the pressure in the pipe can be monitored and displayed in real time through the pressure gauge 43, so that people can collect and observe the data conveniently.

[0023] Combination Figure 3 The flange interface 3 includes a flange 1 31, and a flange 2 32 is connected to the flange 1 31 by a bolt 34 on one side. Through holes 33 are provided inside the flange 1 31 and the flange 2 32. The flange 1 31 and the flange 2 32 are tightly contacted together by the bolts 34 to prevent the squeezing of water flow. The opening of the through hole 33 allows the water flow to pass unimpeded. This structure is easy to disassemble and assemble, and is convenient for maintenance and replacement, which greatly improves the practicality of the device.

[0024] Combination Figure 4-5The discharge pipe 41 includes a fixed plate 411, a semicircular tube 1 412 is fixedly provided at the upper end of the fixed plate 411, a semicircular tube 2 413 is fixedly provided at the lower end of the fixed plate 411, a hole 1 416 is penetrated through the middle of the fixed plate 411, a hole 2 414 is penetrated through the fixed plate 411 and is located next to the hole 1 416, a threaded hole 415 is penetrated through the surface of the semicircular tube 1 412, and an annular groove 417 is provided on the surface of the fixed plate 411, which is threadedly connected with the threaded rod 426 through the threaded hole 415, so that the valve core 42 can move up and down inside the discharge pipe 41, the hole 1 416 is tightly fitted with the valve 423 to prevent the stealing of water, and the annular groove 417 is embedded with the sealing member 425 to further enhance the airtightness.

[0025] Combination Figure 4 The wall of the semicircular tube 2 413 is thicker than that of the semicircular tube 1 412. The thick wall of the semicircular tube 2 413 can better cope with the high pressure in the collecting pipe 1 without breaking, while the thin wall of the semicircular tube 1 412 can achieve rapid flow discharge when the pressure is reduced. The two wall thicknesses meet different usage requirements and greatly improve the practicability of the device.

[0026] Combination Figure 2 , Figure 5 An annular handle 427 is fixedly provided on the outer side of the upper end of the threaded rod 426. By rotating the annular handle 427, the threaded rod 426 is driven to rotate, so as to realize the up and down movement of the valve core 42. This structure can prevent the internal structure of the valve core 42 from failing to realize automatic decompression and discharge if an emergency occurs. It can be manually determined whether manual decompression and discharge are required based on the pressure display of the pressure gauge 43.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pressure reducing structure for a high-pressure resistant and uniform current collecting pipe, comprising a collecting pipe (1), a flow dividing pipe (2) being arranged on one side of the collecting pipe (1), a pressure reducing assembly (4) being arranged in the middle of the flow dividing pipe (2), and flange interfaces (3) being arranged at both ends of the pressure reducing assembly (4), characterized in that: The pressure reducing assembly (4) comprises a discharge pipe (41), a valve core (42) is movably arranged inside the discharge pipe (41), the valve core (42) comprises a fixed block (421), a telescopic rod (422) is fixedly arranged at the lower end of the fixed block (421), a valve (423) is fixedly arranged at the lower end of the telescopic rod (422), a groove (428) is provided at the upper end of the valve (423), a spring (424) is fixedly arranged in the groove (428), a sealing member (425) is arranged on the outer side of the valve (423), a threaded rod (426) is fixedly arranged at the upper end of the fixed block (421), and the threaded rod (426) is threadedly connected to the discharge pipe (41).

2. A pressure reducing structure for a high-pressure resistant and flow-uniform collecting pipe according to claim 1, characterized in that: A pressure gauge (43) is fixedly provided at one end of the decompression assembly (4).

3. A pressure reducing structure for a high-pressure resistant and flow-uniform current collecting pipe according to claim 1, characterized in that: The flange interface (3) comprises a flange plate 1 (31), a bolt (34) on one side of the flange plate 1 (31) is connected to a flange plate 2 (32), and through holes (33) are provided inside the flange plate 1 (31) and the flange plate 2 (32).

4. A pressure reducing structure for a high-pressure resistant and flow-uniform current collecting pipe according to claim 1, characterized in that: The drain pipe (41) comprises a fixing plate (411), a semicircular tube 1 (412) is fixedly provided at the upper end of the fixing plate (411), a semicircular tube 2 (413) is fixedly provided at the lower end of the fixing plate (411), a hole 1 (416) is provided through the middle of the fixing plate (411), a hole 2 (414) is provided through the fixing plate (411) and is located beside the hole 1 (416), a threaded hole (415) is provided through the surface of the semicircular tube 1 (412), and a ring groove (417) is provided on the surface of the fixing plate (411).

5. A pressure reducing structure for a high-pressure resistant and flow-uniform current collecting pipe according to claim 4, characterized in that: The tube wall of the second semicircular tube (413) is thicker than the tube wall of the first semicircular tube (412).

6. A pressure reducing structure for a high-pressure resistant and flow-uniform current collecting pipe according to claim 1, characterized in that: An annular handle (427) is fixedly provided on the outer side of the upper end of the threaded rod (426).

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