Well submersible pump check valve structure convenient to disassemble and assemble

Abstract

This utility model discloses a check valve structure for a well submersible pump that is easy to assemble and disassemble. It includes an outlet section, a check valve body, and a check valve core. The check valve body is detachably connected to the outlet section. The check valve core includes a valve stem, a guide sleeve, and a valve plate. The upper end of the valve stem is detachably connected to the outlet section, and the lower end of the valve stem is inserted into the check valve body for positioning. A guide sleeve is fitted onto the valve stem, and the guide sleeve moves up and down along the valve stem. A valve plate is fitted onto the guide sleeve, covering the outlet position of the check valve body. This structure uses a threaded connection for installation and fixation with the outlet section, allowing for easy disassembly without damaging parts. This facilitates quick and easy replacement of damaged or worn components. The threaded connection provides a seal during tightening. The valve core uses a spring structure, which is simple, reliable, and cost-effective. Its unique energy storage and release function provides continuous force, significantly reducing impact and protecting the valve core. The easily worn sealing ring can be removed and replaced separately, saving on the operating cost of the check valve.

Description

Technical Field

[0001] This utility model relates to the technical field of submersible pump structure for wells, and in particular to a check valve structure for a submersible pump for wells that is easy to disassemble and assemble. Background Technology

[0002] like Figure 1 As shown, the current structure of a submersible well pump check valve includes an outlet section 1, a check valve body 2, and a check valve core 3. The outlet section is tightly connected to the check valve body, and the check valve body and check valve core are an integral structure. The check valve core and check valve body cannot be disassembled separately. The check valve is a consumable part, and the check valve core will wear or fail due to fatigue with use. The inability to disassemble means that the valve core cannot be replaced individually; usually, the entire check valve, including the valve core, needs to be replaced. This is much more expensive than replacing the check valve core alone, significantly increasing the operating cost of the check valve. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model designs a check valve structure for well submersible pumps that is easy to disassemble and assemble.

[0004] The present invention adopts the following technical solution: A check valve structure for a well submersible pump that is easy to assemble and disassemble includes an outlet section, a check valve body, and a check valve core. The check valve body is detachably connected to the outlet section. The check valve core includes a valve stem, a guide sleeve, and a valve plate. The upper end of the valve stem is detachably connected to the outlet section, and the lower end of the valve stem is inserted into the check valve body for positioning. A guide sleeve is fitted on the valve stem and moves up and down along the valve stem. A valve plate is fitted on the guide sleeve and covers the outlet position of the check valve body.

[0005] Preferably, a return spring is installed on the valve stem between the outlet section and the guide sleeve.

[0006] Preferably, a sealing ring is fixedly installed at the bottom of the valve plate.

[0007] Preferably, the lower outer side of the guide sleeve is provided with threads, and a fastening nut is connected by the threads. The sealing ring and the valve plate are fastened and fixed by the guide sleeve and the fastening nut.

[0008] Preferably, the upper end of the valve stem is connected to the outlet joint via an external thread.

[0009] Preferably, the check valve body is connected to the outlet joint via an external thread.

[0010] The beneficial effects of this utility model are as follows: The well submersible pump check valve adopts a threaded structure for installation and fixation with the outlet section, which can be easily disassembled without damaging the parts. This facilitates quick and easy disassembly and replacement of damaged or worn parts, and makes the equipment easier to assemble and adjust. It ensures a tight fit between the connected parts, improving the overall rigidity and stability. The threaded fit can achieve a seal when tightening. The valve core adopts a spring structure, which is simple, reliable, and cost-effective. Its unique energy storage and release function provides continuous force, significantly reducing impact force and protecting the valve core. The easily worn sealing ring can be disassembled and replaced separately, saving the operating cost of the check valve. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of a structure of a check valve for an existing submersible well pump. Figure 2 This is a schematic diagram of the structure of this utility model; In the diagram: 1. Water outlet section, 2. Check valve body, 3. Check valve core, 3-1. Valve stem, 3-2. Guide sleeve, 3-3. Return spring, 3-4. Valve plate, 3-5. Sealing ring, 3-6. Fastening nut. Detailed Implementation

[0012] The technical solution of this utility model will be further described in detail below through specific embodiments and with reference to the accompanying drawings: Example: Figure 2 As shown, a check valve structure for a well submersible pump that is easy to assemble and disassemble includes an outlet section 1, a check valve body 2, and a check valve core 3. The check valve body is detachably connected to the outlet section. The check valve core includes a valve stem 3-1, a guide sleeve 3-2, and a valve plate 3-4. The upper end of the valve stem is detachably connected to the outlet section, and the lower end of the valve stem is inserted into the check valve body for positioning. A guide sleeve is fitted on the valve stem and moves up and down along the valve stem. A valve plate is fitted on the guide sleeve and covers the outlet position of the check valve body.

[0013] A return spring 3-3 is installed on the valve stem between the outlet section and the guide sleeve. A sealing ring 3-5 is fixedly installed at the bottom of the valve plate.

[0014] The lower outer side of the guide sleeve is threaded, and fastening nuts 3-6 are connected by the thread. The sealing ring and valve plate are fastened and fixed by the guide sleeve and the fastening nuts.

[0015] The upper end of the valve stem is connected to the outlet joint threaded via an external thread. The check valve body is connected to the outlet joint threaded via an external thread.

[0016] This utility model designs a check valve for well submersible pumps. The valve features a threaded structure for installation and fixation with the outlet section, allowing for easy disassembly without damaging parts. This facilitates quick and easy replacement of damaged or worn components, and promotes equipment assembly and adjustment. The design ensures a tight fit between connected parts, improving overall rigidity and stability. The threaded connection provides a seal during tightening. The valve core employs a spring structure, which is simple, reliable, and cost-effective. Its unique energy storage and release function provides continuous force, significantly reducing impact and protecting the valve core. The easily worn sealing ring can be individually removed and replaced, saving on the cost of using the check valve.

[0017] The embodiments described above are merely preferred solutions of this utility model and are not intended to limit this utility model in any way. Other variations and modifications are possible without departing from the technical solutions described in the claims.

Claims

1. A check valve structure for a well submersible pump that is easy to disassemble and assemble, comprising a discharge section, a check valve body, and a check valve core, characterized in that, The check valve body is detachably connected to the outlet section. The check valve core includes a valve stem, a guide sleeve, and a valve plate. The upper end of the valve stem is detachably connected to the outlet section, and the lower end of the valve stem is inserted into the check valve body for positioning. A guide sleeve is fitted on the valve stem and moves up and down along the valve stem. A valve plate is fitted on the guide sleeve and covers the outlet position of the check valve body.

2. The well submersible pump check valve structure for easy disassembly and assembly according to claim 1, characterized in that, A return spring is installed on the valve stem between the outlet section and the guide sleeve.

3. The well submersible pump check valve structure for easy assembly and disassembly according to claim 1, characterized in that, A sealing ring is fixedly installed at the bottom of the valve plate.

4. The well submersible pump check valve structure for easy disassembly and assembly as described in claim 3, characterized in that, The lower outer side of the guide sleeve is threaded, and a fastening nut is connected to it via the thread. The sealing ring and the valve plate are fastened and fixed by the guide sleeve and the fastening nut.

5. The well submersible pump check valve structure for easy assembly and disassembly according to claim 1, characterized in that, The upper end of the valve stem is connected to the outlet section via an external thread.

6. The well submersible pump check valve structure for easy assembly and disassembly according to claim 1, characterized in that, The check valve body is connected to the outlet joint via an external thread.

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