Sealing ring, piston structure and pump head structure for booster pump and booster pump

Abstract

The utility model relates to the technical field of water purification, in particular to a sealing ring, a piston structure and a pump head structure for a booster pump and the booster pump. The sealing ring for the booster pump comprises a sealing ring body, the bottom wall of the sealing ring body protrudes downwards to form a first sealing ring, the outer ring wall of the first sealing ring is an inclined face wall, and the sealing ring body is used for being clamped between a piston and the head of a screw. The bottom wall of the sealing ring body is used for being connected with a first sealing groove of the piston in an abutting mode, and the outer ring wall of the first sealing ring is used for being connected with the inclined face wall of a second sealing groove of the piston in an abutting mode. The sealing ring body is clamped between the piston and the head of the screw, the outer ring wall of the first sealing ring is an inclined face wall, and under the locking force effect of the screw, the first sealing ring is completely filled in the gap between the piston and the screw along the inclined face wall of the second sealing groove to achieve the sealing effect. The problem that a sealing ring between a screw and a piston in an existing booster pump is prone to failure is solved.

Description

Technical Field

[0001] This utility model relates to the field of water purification technology, and in particular to a sealing ring, piston structure, pump head structure, and booster pump for a booster pump. Background Technology

[0002] Booster pumps used in water purifiers connect the piston, diaphragm, and piston support with screws. To maintain a tight seal, a sealing ring is usually placed between the screw and the piston. However, due to constant movement, the screw and piston experience friction under external forces, which can cause the sealing ring to fail, resulting in gaps and water leakage. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model proposes a sealing ring, piston structure, pump head structure, and booster pump for a booster pump, aiming to solve the problem of easy failure of the sealing ring between the screw and the piston in existing booster pumps.

[0004] The technical solution proposed by this utility model is:

[0005] A sealing ring for a booster pump includes a sealing ring body, the bottom wall of which protrudes downward to form a first sealing ring, the outer wall of which is a beveled wall, the sealing ring body being clamped between a piston and the head of a screw, the bottom wall of which abuts against a first sealing groove of the piston, and the outer wall of which abuts against the beveled wall of a second sealing groove of the piston.

[0006] Furthermore, the top wall of the sealing ring body protrudes upward to form a second sealing ring, which is used to abut against the head of the screw.

[0007] Furthermore, the inner wall of the sealing ring body, the inner wall of the first sealing ring, and the inner wall of the second sealing ring are concentric circles and are the same size.

[0008] Furthermore, the outer wall of the second sealing ring is a beveled wall.

[0009] This utility model also provides a piston structure, including a piston, a sealing ring for a booster pump, and a screw. The sealing ring includes a sealing ring body, the bottom wall of which protrudes downward to form a first sealing ring. The outer wall of the first sealing ring is a sloped wall. The piston has a first sealing groove, the bottom wall of the first sealing groove has a second sealing groove, and the bottom wall of the second sealing groove has a first through hole. The shank of the screw passes through the inner wall of the sealing ring body and the first through hole. The sealing ring body is sandwiched between the piston and the head of the screw. The bottom wall of the sealing ring body abuts against the first sealing groove, and the outer wall of the first sealing ring abuts against the sloped wall of the second sealing groove.

[0010] Furthermore, the top wall of the sealing ring body protrudes upward to form a second sealing ring, which abuts against the head of the screw.

[0011] Furthermore, the inner wall of the sealing ring body, the inner wall of the first sealing ring, and the inner wall of the second sealing ring are concentric circles and are the same size.

[0012] Furthermore, the outer wall of the second sealing ring is a beveled wall.

[0013] This utility model also provides a pump head structure, including a piston structure, a diaphragm, and a piston support. The piston structure includes a piston, a sealing ring for a booster pump, and a screw. The sealing ring for the booster pump includes a sealing ring body, the bottom wall of which protrudes downward to form a first sealing ring. The outer wall of the first sealing ring is a sloped wall. The piston has a first sealing groove, the bottom wall of the first sealing groove has a second sealing groove, the bottom wall of the second sealing groove has a first through hole, the diaphragm has a second through hole, and the piston support has a threaded hole. The shank of the screw passes through the inner wall of the sealing ring body, the first through hole, the second through hole, and connects to the threaded hole. The sealing ring body is sandwiched between the piston and the head of the screw. The bottom wall of the sealing ring body abuts against the first sealing groove, and the outer wall of the first sealing ring abuts against the sloped wall of the second sealing groove.

[0014] This utility model also provides a booster pump, including the pump head structure described above.

[0015] According to the above technical solution, the present invention has the following advantages: the sealing ring body is sandwiched between the piston and the head of the screw, and the outer wall of the first sealing ring is a sloping wall. Under the locking force of the screw, the first sealing ring is completely filled along the sloping wall of the second sealing groove in the gap between the piston and the screw to achieve a sealing effect, thus solving the problem that the sealing ring between the screw and the piston in the existing booster pump is prone to failure. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the sealing ring for the booster pump provided in the embodiment of this utility model;

[0017] Figure 2 This is a schematic diagram of the sealing ring for a booster pump provided in an embodiment of the present invention from another direction;

[0018] Figure 3 This is a schematic diagram of the pump head structure provided in the embodiment of this utility model;

[0019] Figure 4 yes Figure 3 Enlarged view of point B in the middle;

[0020] Figure 5 This is a schematic diagram of the piston structure provided in the embodiment of this utility model.

[0021] Among them, the components for the booster pump are: sealing ring 21, sealing ring body 211, first sealing ring 212, second sealing ring 213, piston structure 22, piston 221, first sealing groove 2211, second sealing groove 2212, first through hole 2213, screw 222, diaphragm 13, and piston bracket 14. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0023] Example 1

[0024] like Figures 1 to 5 As shown in the figure, this utility model embodiment proposes a sealing ring 21 for a booster pump, including a sealing ring body 211. The bottom wall of the sealing ring body 211 protrudes downward to form a first sealing ring 212. The outer wall of the first sealing ring 212 is a beveled wall. The sealing ring body 211 is used to clamp between the head of the piston 221 and the screw 222. The bottom wall of the sealing ring body 211 is used to abut against the first sealing groove 2211 of the piston. The outer wall of the first sealing ring 212 is used to abut against the beveled wall of the second sealing groove 2212 of the piston.

[0025] In this embodiment, the sealing ring 21 for the booster pump is applied in the booster pump, specifically, it is used for sealing between the piston and the screw 222.

[0026] The sealing ring body 211 is sandwiched between the piston 221 and the head of the screw 222. The outer wall of the first sealing ring 212 is a beveled wall. Under the locking force of the screw 222, the first sealing ring 212 is completely filled along the beveled wall of the second sealing groove 2212 in the gap between the piston 221 and the screw 222 to achieve a sealing effect, thus solving the problem that the sealing ring between the screw and the piston in the existing booster pump is prone to failure.

[0027] In this embodiment, the top wall of the sealing ring body 211 protrudes upward to form a second sealing ring 213, which is used to abut against the head of the screw 222. Depending on the degree of tightening of the screw 222 and the piston 221, the degree of compression of the second sealing ring 213 varies. It can be that only the second sealing ring 213 abuts against the head of the screw 222, or the sealing ring body 211 and the first sealing ring 212 abut against the head of the screw 222 together.

[0028] In this embodiment, the inner walls of the sealing ring body 211, the first sealing ring 212, and the second sealing ring 213 are concentric circles and of the same size. That is, the inner walls of the sealing ring body 211, the first sealing ring 212, and the second sealing ring 213 are of the same size, which is compatible with the size of the screw shank 222.

[0029] In this embodiment, the outer wall of the second sealing ring 213 is a beveled wall. The first sealing ring 212 and the second sealing ring 213 have the same structure, so there is no need to distinguish the upper and lower ends of the sealing ring 21 used for the booster pump during installation, which facilitates installation.

[0030] Example 2

[0031] like Figures 1 to 5 As shown, this embodiment of the present invention also provides a piston structure 22, including a piston 221, a sealing ring 21 for a booster pump, and a screw 222. The sealing ring includes a sealing ring body 211, the bottom wall of the sealing ring body 211 protruding downward to form a first sealing ring 212, the outer wall of the first sealing ring 212 being a sloped wall, the piston 221 having a first sealing groove 2211, the bottom wall of the first sealing groove 2211 having a second sealing groove 2212, the bottom wall of the second sealing groove 2212 having a first through hole 2213, the shank of the screw 222 passing through the inner wall of the sealing ring body 211 and the first through hole 2213, the sealing ring body 211 being sandwiched between the piston 221 and the head of the screw 222, the bottom wall of the sealing ring body 211 abutting against the first sealing groove 2211, and the outer wall of the first sealing ring 212 abutting against the sloped wall of the second sealing groove 2212.

[0032] In this embodiment, the piston structure 22 is used in a booster pump.

[0033] The sealing ring body 211 is sandwiched between the piston and the head of the screw 222. The outer wall of the first sealing ring 212 is a sloping wall. Under the locking force of the screw 222, the first sealing ring 212 is completely filled along the sloping wall of the second sealing groove 2212 in the gap between the piston 221 and the screw 222 to achieve a sealing effect, thus solving the problem that the sealing ring between the screw and the piston in the existing booster pump is prone to failure.

[0034] In this embodiment, the top wall of the sealing ring body 211 protrudes upward to form a second sealing ring 213, which abuts against the head of the screw 222. Depending on the degree of tightening of the screw 222 and the piston 221, the degree of compression of the second sealing ring 213 varies; it can be that only the second sealing ring 213 abuts against the head of the screw 222, or it can be that the sealing ring body 211 and the first sealing ring 212 both abut against the head of the screw 222.

[0035] In this embodiment, the inner walls of the sealing ring body 211, the first sealing ring 212, and the second sealing ring 213 are concentric circles and of the same size. That is, the inner walls of the sealing ring body 211, the first sealing ring 212, and the second sealing ring 213 are of the same size, which is compatible with the size of the screw shank 222.

[0036] In this embodiment, the outer wall of the second sealing ring 213 is a beveled wall. The first sealing ring 212 and the second sealing ring 213 have the same structure, so during installation, it is not necessary to distinguish the upper and lower positions of the sealing ring 21 used for the booster pump.

[0037] Example 3

[0038] like Figures 1 to 5As shown, this utility model embodiment also provides a pump head structure, including a piston structure 22, a diaphragm 13, and a piston support 14. The piston structure 22 includes a piston 221, a sealing ring 21 for the booster pump, and a screw 222. The sealing ring 21 for the booster pump includes a sealing ring body 211. The bottom wall of the sealing ring body 211 protrudes downward to form a first sealing ring 212. The outer wall of the first sealing ring 212 is a beveled wall. The piston 221 is provided with a first sealing groove 2211, and the bottom wall of the first sealing groove 2211 is provided with a second sealing groove 2212. The bottom wall of the sealing groove 2212 is provided with a first through hole 2213, the diaphragm 13 is provided with a second through hole, the piston bracket 14 is provided with a threaded hole, the shaft of the screw 222 passes through the inner ring wall of the sealing ring body 211, the first through hole 2213, the second through hole and the threaded hole, the sealing ring body 211 is sandwiched between the piston 221 and the head of the screw 222, the bottom wall of the sealing ring body 211 abuts against the first sealing groove 2211, and the outer ring wall of the first sealing ring 212 is used to abut against the inclined wall of the second sealing groove 2212.

[0039] In this embodiment, the pump head structure is used in a booster pump.

[0040] The sealing ring body 211 is sandwiched between the piston and the head of the screw 222. The outer wall of the first sealing ring 212 is a sloping wall. Under the locking force of the screw 222, the first sealing ring 212 is completely filled along the sloping wall of the second sealing groove 2212 in the gap between the piston 221 and the screw 222 to achieve a sealing effect, thus solving the problem that the sealing ring between the screw and the piston in the existing booster pump is prone to failure.

[0041] In this embodiment, the top wall of the sealing ring body 211 protrudes upward to form a second sealing ring 213, which abuts against the head of the screw 222. Depending on the degree of tightening of the screw 222 and the piston 221, the degree of compression of the second sealing ring 213 varies; it can be that only the second sealing ring 213 abuts against the head of the screw 222, or it can be that the sealing ring body 211 and the first sealing ring 212 both abut against the head of the screw 222.

[0042] In this embodiment, the inner walls of the sealing ring body 211, the first sealing ring 212, and the second sealing ring 213 are concentric circles and of the same size. That is, the inner walls of the sealing ring body 211, the first sealing ring 212, and the second sealing ring 213 are of the same size, which is compatible with the size of the screw shank 222.

[0043] In this embodiment, the outer wall of the second sealing ring 213 is a beveled wall. The first sealing ring 212 and the second sealing ring 213 have the same structure, so during installation, it is not necessary to distinguish the upper and lower positions of the sealing ring 21 used for the booster pump.

[0044] Example 4

[0045] like Figures 1 to 5 As shown in the figure, this utility model embodiment also provides a booster pump, including a pump base and a pump head structure, wherein the pump head structure is connected to the pump base.

[0046] In this embodiment, the booster pump is used in a water purifier.

[0047] In this embodiment, the pump head structure includes a piston structure 22, a diaphragm 13, and a piston support 14. The piston structure 22 includes a piston 221, a sealing ring 21 for the booster pump, and a screw 222. The sealing ring 21 for the booster pump includes a sealing ring body 211. The bottom wall of the sealing ring body 211 protrudes downward to form a first sealing ring 212. The outer wall of the first sealing ring 212 is a beveled wall. The piston 221 is provided with a first sealing groove 2211. The bottom wall of the first sealing groove 2211 is provided with a second sealing groove 2212. The bottom wall of the groove of 2 is provided with a first through hole 2213, the diaphragm 13 is provided with a second through hole, the piston bracket 14 is provided with a threaded hole, the shaft of the screw 222 passes through the inner ring wall of the sealing ring body 211, the first through hole 2213, the second through hole and the threaded hole, the sealing ring body 211 is sandwiched between the piston 221 and the head of the screw 222, the bottom wall of the sealing ring body 211 abuts against the first sealing groove 2211, and the outer ring wall of the first sealing ring 212 is used to abut against the inclined wall of the second sealing groove 2212.

[0048] In this embodiment, the pump head structure is used in a booster pump.

[0049] The sealing ring body 211 is sandwiched between the piston and the head of the screw 222. The outer wall of the first sealing ring 212 is a sloping wall. Under the locking force of the screw 222, the first sealing ring 212 is completely filled along the sloping wall of the second sealing groove 2212 in the gap between the piston 221 and the screw 222 to achieve a sealing effect, thus solving the problem that the sealing ring between the screw and the piston in the existing booster pump is prone to failure.

[0050] In this embodiment, the top wall of the sealing ring body 211 protrudes upward to form a second sealing ring 213, which abuts against the head of the screw 222. Depending on the degree of tightening of the screw 222 and the piston 221, the degree of compression of the second sealing ring 213 varies; it can be that only the second sealing ring 213 abuts against the head of the screw 222, or it can be that the sealing ring body 211 and the first sealing ring 212 both abut against the head of the screw 222.

[0051] In this embodiment, the inner walls of the sealing ring body 211, the first sealing ring 212, and the second sealing ring 213 are concentric circles and of the same size. That is, the inner walls of the sealing ring body 211, the first sealing ring 212, and the second sealing ring 213 are of the same size, which is compatible with the size of the screw shank 222.

[0052] In this embodiment, the outer wall of the second sealing ring 213 is a beveled wall. The first sealing ring 212 and the second sealing ring 213 have the same structure, so during installation, it is not necessary to distinguish the upper and lower positions of the sealing ring 21 for the booster pump.

[0053] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sealing ring for a booster pump, characterized in that, Includes a sealing ring body, the bottom wall of which protrudes downward to form a first sealing ring, the outer wall of which is a beveled wall, the sealing ring body is used to be clamped between the piston and the head of the screw, the bottom wall of which is used to abut against the first sealing groove of the piston, and the outer wall of which is used to abut against the beveled wall of the second sealing groove of the piston. The top wall of the sealing ring body protrudes upward to form a second sealing ring, which is used to abut against the head of the screw. The inner wall of the sealing ring body, the inner wall of the first sealing ring, and the inner wall of the second sealing ring are concentric circles and are the same size. The outer wall of the second sealing ring is a beveled wall.

2. A piston structure, characterized in that, The device includes a piston, a sealing ring for a booster pump, and a screw. The sealing ring for the booster pump includes a sealing ring body, the bottom wall of which protrudes downward to form a first sealing ring, and the outer wall of the first sealing ring is a beveled wall. The piston has a first sealing groove, the bottom wall of the first sealing groove has a second sealing groove, and the bottom wall of the second sealing groove has a first through hole. The shank of the screw passes through the inner wall of the sealing ring body and the first through hole. The sealing ring body is sandwiched between the piston and the head of the screw. The bottom wall of the sealing ring body abuts against the first sealing groove, and the outer wall of the first sealing ring abuts against the beveled wall of the second sealing groove.

3. The piston structure according to claim 2, characterized in that, The top wall of the sealing ring body protrudes upward to form a second sealing ring, which abuts against the head of the screw.

4. The piston structure according to claim 3, characterized in that, The inner walls of the sealing ring body, the first sealing ring, and the second sealing ring are concentric circles and are the same size.

5. The piston structure according to claim 3, characterized in that, The outer wall of the second sealing ring is a beveled wall.

6. A pump head structure, characterized in that, The device includes a piston structure, a diaphragm, and a piston support. The piston structure includes a piston, a sealing ring for a booster pump, and a screw. The sealing ring for the booster pump includes a sealing ring body, the bottom wall of which protrudes downward to form a first sealing ring. The outer wall of the first sealing ring is a sloped wall. The piston has a first sealing groove, the bottom wall of the first sealing groove has a second sealing groove, the bottom wall of the second sealing groove has a first through hole, the diaphragm has a second through hole, and the piston support has a threaded hole. The shank of the screw passes through the inner wall of the sealing ring body, the first through hole, the second through hole, and connects to the threaded hole. The sealing ring body is sandwiched between the piston and the head of the screw. The bottom wall of the sealing ring body abuts against the first sealing groove, and the outer wall of the first sealing ring abuts against the sloped wall of the second sealing groove.

7. A booster pump, characterized in that, Includes the pump head structure as described in claim 6.

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