Multi-layer pump body sealing structure

Abstract

The utility model discloses a multilayer pump body sealing structure, and belongs to the technical field of booster pumps. A multi-layer pump body sealing structure comprises a top frame and a bottom frame, and further comprises an upper end cover, a neck bush and an outer fixing sleeve which are arranged between the top frame and the bottom frame. A plurality of groups of inner bushings and outer fixing sleeves are arranged, the number of the inner bushings is the same as that of the outer fixing sleeves, the inner bushings and the outer fixing sleeves form an extension pipeline, and in the extension pipeline, the inner bushings are arranged above the outer fixing sleeves; the pump body can be subjected to triple sealing, the sealing effect is good, and the situation that the overall sealing effect is reduced due to the fact that a single sealing ring is damaged is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of booster pumps, in particular to a multi-layer pump body sealing structure. Background Art

[0002] The main function of the vertical energy-saving booster pump is to increase the pressure of the fluid to ensure that the fluid can flow smoothly and effectively in situations where high pressure or long-distance fluid transportation is required; in high-rise buildings, the application of vertical energy-saving booster pumps is very critical, and its main function is to increase the water supply pressure to ensure that the water demand of high-rise residential buildings is met.

[0003] In order to facilitate disassembly and maintenance, reduce energy loss during fluid transmission, and improve pump efficiency, a general vertical energy-saving booster pump is arranged in multiple layers. However, due to the multi-layer design, a sealing ring needs to be added between each layer. The multi-layer pipes squeeze each other, which can easily cause the sealing rings between the multiple layers to break or break, affecting the sealing effect. Therefore, in response to this problem, the utility model proposes a multi-layer pump body sealing structure. Utility Model Content

[0004] The utility model aims to solve the problem that the digital meter is not sealed and dried in the prior art, and proposes a multi-layer pump body sealing structure.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A multi-layer pump body sealing structure, including a top frame and a bottom frame, further comprising: an upper end cover, an inner sleeve, and an outer fixed sleeve are arranged between the top frame and the bottom frame; the inner sleeve and the outer fixed sleeve are each provided with multiple groups, and the number of the inner sleeve and the outer fixed sleeve is the same, the inner sleeve and the outer fixed sleeve form an extension pipeline, in which the inner sleeve is placed above the outer fixed sleeve; the upper end cover, the inner sleeve, and the outer fixed sleeve form a pipeline body of the multi-layer pump body, wherein the upper end cover is placed at the top, and the lower part of the upper end cover is an extension pipeline composed of the inner sleeve and the outer fixed sleeve, and a plurality of extension pipelines composed of the inner sleeve and the outer fixed sleeve are also arranged in the extension pipeline, and the outer fixed sleeve located at the lowest end is arranged on the bottom frame; a first sealing ring is arranged between the upper end cover and the inner sleeve, a second sealing ring and a third sealing ring are respectively arranged between the inner sleeve and the outer fixed sleeve, and a fourth sealing ring is arranged between the outer fixed sleeve and the bottom frame.

[0007] Preferably, a motor is provided on the top frame.

[0008] Furthermore, a booster assembly is provided in the pipeline body of the multi-layer pump body composed of an upper end cover, an inner liner sleeve, and an outer fixed sleeve, and the motor drives the booster assembly to operate through a driving shaft.

[0009] Preferably, a reinforcing rod for reinforcing the structural strength of the multi-layer pump body is provided between the top frame and the bottom frame.

[0010] Preferably, the upper end cover and the outer fixed sleeve are both provided with a water outlet, and the outer fixed sleeve located at the bottom is provided with a water inlet.

[0011] Preferably, a lower groove is formed at the lower end of the upper end cover, a first sealing ring is provided in the lower groove, a first groove and a second groove are formed at both the upper and lower ends of the outer fixed sleeve, and a second sealing ring is provided on the first groove.

[0012] Furthermore, a receiving groove is formed on the second groove, a third sealing ring is formed on the second groove, an upper protrusion is formed on the third sealing ring, the upper protrusion corresponds to the receiving groove, and a first protrusion and a second protrusion are formed on the inner ring of the third sealing ring.

[0013] Preferably, an annular groove is provided on the base frame, a fourth sealing ring is provided in the annular groove, and a pressure ring matched with the fourth sealing ring is provided at the lower end of the outer fixed sleeve located at the bottom.

[0014] Compared with the prior art, the utility model provides a multi-layer pump body sealing structure, which has the following beneficial effects:

[0015] The multi-layer pump body sealing structure further seals the connection between the inner sleeve and the outer fixed sleeve by having the first protrusion and the second protrusion fit the connection gap between the inner sleeve and the outer fixed sleeve, and cooperates with the second sealing ring and the third sealing ring to achieve a triple sealing effect on the pump body. In this way, even if some of the sealing rings are damaged, it will not affect the overall sealing effect of the pump body. The sealing of the bottom of the pump body is strengthened by the fourth sealing ring between the outer fixed sleeve and the base frame, and the sealing of the top of the pump body is strengthened by the first sealing ring between the upper end cover and the inner sleeve, thereby improving the overall sealing effect of the pump body.

[0016] The parts not involved in the device are the same as the existing technology or can be implemented by using the existing technology. The utility model has a good sealing effect and avoids the decrease of the overall sealing effect due to damage of a single sealing ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of a multi-layer pump body sealing structure proposed by the utility model;

[0018] Figure 2 A cross-sectional view of a multi-layer pump body sealing structure proposed by the utility model;

[0019] Figure 3 A multi-layer pump body sealing structure proposed by the utility model Figure 2 The structural diagram of the enlarged part A in the middle;

[0020] Figure 4 A multi-layer pump body sealing structure proposed by the utility model Figure 2 The enlarged structural diagram of part B in the middle;

[0021] Figure 5 A multi-layer pump body sealing structure proposed by the utility model Figure 2 Schematic diagram of the enlarged structure of part C.

[0022] In the figure: 1, top frame; 2, motor; 3, bottom frame; 4, reinforcing rod; 5, water inlet end; 6, water outlet end; 7, upper end cover; 701, lower groove; 8, inner sleeve; 9, outer fixed sleeve; 901, first slot; 902, second slot; 10, bottom connecting seat; 11, booster assembly; 12, first sealing ring; 13, second sealing ring; 14, third sealing ring; 1401, upper bump; 1402, first protrusion; 1403, second protrusion; 15, accommodating groove; 16, annular groove; 17, fourth sealing ring; 18, pressure ring. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0025] Embodiment 1:

[0026] Reference Figure 1-Figure 5, a multi-layer pump body sealing structure, including a top frame 1 and a bottom frame 3, and also includes: an upper end cover 7, an inner liner 8, and an outer fixed sleeve 9 are arranged between the top frame 1 and the bottom frame 3; the inner liner 8 and the outer fixed sleeve 9 are each provided with multiple groups, and the number of the inner liner 8 and the outer fixed sleeve 9 is the same, and the inner liner 8 and the outer fixed sleeve 9 form an extended pipeline, in which the inner liner 8 is placed above the outer fixed sleeve 9; the upper end cover 7, the inner liner 8, and the outer fixed sleeve 9 form a pipeline body of the multi-layer pump body, wherein the upper end cover 7 is placed at the top, and the inner liner 8 and the outer fixed sleeve 9 below the upper end cover 7 form an extended pipeline, and an extended pipeline composed of multiple inner liner 8 and outer fixed sleeve 9 is also provided in the extended pipeline, and the outer fixed sleeve 9 located at the lowest end is arranged on the bottom frame 3; a first sealing ring 12 is provided between the upper end cover 7 and the inner liner 8, a second sealing ring 13 and a third sealing ring 14 are respectively provided between the inner liner 8 and the outer fixed sleeve 9, and a fourth sealing ring 17 is provided between the outer fixed sleeve 9 and the bottom frame 3.

[0027] In the utility model, when installing the pump body, first install the first outer fixing sleeve 9 on the bottom frame 3, then install the inner sleeve 8 on the first outer fixing sleeve 9, then install the outer fixing sleeve 9 on the inner sleeve 8, and then install the inner sleeve 8 on the outer fixing sleeve 9, and so on. An outer fixing sleeve 9 and an inner sleeve 8 are a combination. The combination is provided with a plurality of them for installing pump bodies of different specifications. An upper end cover 7 is installed on an inner sleeve 8 at the uppermost end, and then a top frame 1 is installed on the upper end cover 7. The top frame 1 and the bottom frame 3 can be solidified, thereby strengthening the overall structural strength of the pump body.

[0028] From the cross-sectional view, the upper and lower ends of the outer sleeve 9 are stepped, which can be used to install the second sealing ring 13 and the third sealing ring 14. The second sealing ring 13 and the third sealing ring 14 are double sealed, which can improve the sealing effect of the multi-layer pump body. At the same time, the fourth sealing ring 17 between the outer sleeve 9 and the base frame 3 strengthens the sealing of the bottom of the pump body, and the first sealing ring 12 between the upper end cover 7 and the inner sleeve 8 strengthens the sealing of the top of the pump body, thereby improving the overall sealing effect of the pump body.

[0029] Embodiment 2:

[0030] Reference Figure 1-Figure 5, which is basically the same as Example 1, and furthermore, a motor 2 is provided on the top frame 1; a booster assembly 11 is provided in the pipeline body of the multi-layer pump body composed of an upper end cover 7, an inner liner 8, and an outer fixed sleeve 9, and the motor 2 drives the booster assembly 11 to operate through a drive shaft; a reinforcing rod 4 for reinforcing the structural strength of the multi-layer pump body is provided between the top frame 1 and the bottom frame 3; a water outlet 6 is provided on the upper end cover 7 and the outer fixed sleeve 9, and a water inlet 5 is provided on the outer fixed sleeve 9 at the bottom; a lower groove 701 is provided at the lower end of the upper end cover 7, a first sealing ring 12 is provided in the lower groove 701, and both upper and lower ends of the outer fixed sleeve 9 are provided with A first slot 901 and a second slot 902, the first slot 901 is provided with a second sealing ring 13; a receiving slot 15 is provided on the second slot 902, the second slot 902 is provided with a third sealing ring 14, the third sealing ring 14 is provided with an upper protrusion 1401, the upper protrusion 1401 corresponds to the receiving slot 15, the inner ring of the third sealing ring 14 is provided with a first protrusion 1402 and a second protrusion 1403; an annular groove 16 is provided on the base frame 3, a fourth sealing ring 17 is provided in the annular groove 16, and a pressing ring 18 matching the fourth sealing ring 17 is provided at the lower end of the outer fixed sleeve 9 at the bottom.

[0031] In the present invention, the output end of the motor 2 on the top frame 1 is arranged on the driving shaft, and the driving shaft is driven by the motor 2 to drive the boosting assembly 11 to operate and pressurize the water flow entering the pump body from the water inlet end 5;

[0032] It should be noted that before installing the upper end cover 7, the booster assembly 11 needs to be installed into the pump body;

[0033] After the pump body is assembled as a whole, the top frame 1 and the bottom frame 3 can be solidified by the reinforcing rod 4, thereby strengthening the overall structural strength of the pump body. The reinforcing rod 4 is threadedly connected to the top frame 1 and the bottom frame 3;

[0034] When the pump body is assembled, the first sealing ring 12 between the upper end cover 7 and the inner liner 8 can enhance the sealing performance of the top of the pump body;

[0035] A bottom connection seat 10 is provided on the bottom frame 3, and an annular groove 16 is provided on the bottom connection seat 10. A fourth sealing ring 17 between the outer fixed sleeve 9 and the bottom frame 3 can enhance the sealing performance of the bottom of the pump body. The fourth sealing ring 17 is concave, and a pressing ring 18 corresponding to the concave shape is also provided at the bottom of the outer fixed sleeve 9 at the lowermost end. The pressing ring 18 is squeezed into the concave part of the fourth sealing ring 17, which can further enhance the sealing effect.

[0036] The second sealing ring 13 and the third sealing ring 14 are arranged one above the other, so as to achieve a double sealing effect. At the same time, the upper protrusion 1401 on the third sealing ring 14 corresponds to the receiving groove 15. When the inner sleeve 8 and the outer fixed sleeve 9 are against each other, the upper protrusion 1401 is squeezed into the receiving groove 15 by the inner sleeve 8 or the outer fixed sleeve 9. Through this multi-curved groove design, the contact area between the third sealing ring 14 and the inner sleeve 8 and the outer fixed sleeve 9 is increased, and the close fit between the third sealing ring 14 and the inner sleeve 8 and the outer fixed sleeve 9 can be enhanced, so that the sealing effect can be effectively enhanced.

[0037] When the upper protrusion 1401 is squeezed into the accommodating groove 15, the third sealing ring 14 will bend downward as a whole, which will pull the two sides of the third sealing ring 14, causing the two sides of the third sealing ring 14 to shrink, allowing the first protrusion 1402 and the second protrusion 1403 to be pulled, so that the first protrusion 1402 and the second protrusion 1403 fit the connecting gap between the inner sleeve 8 and the outer fixed sleeve 9, and further seal the connection between the inner sleeve 8 and the outer fixed sleeve 9. In combination with the second sealing ring 13 and the third sealing ring 14, a triple sealing effect on the pump body can be achieved. Even if some sealing rings are damaged, it will not affect the overall sealing effect of the pump body.

[0038] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A multi-layer pump body sealing structure, comprising a top frame (1) and a bottom frame (3), characterized in that: Also includes: An upper end cover (7), an inner lining sleeve (8) and an outer fixing sleeve (9) are provided between the top frame (1) and the bottom frame (3); The inner lining sleeve (8) and the outer fixing sleeve (9) are provided in multiple groups, and the number of the inner lining sleeve (8) and the number of the outer fixing sleeve (9) are the same. The inner lining sleeve (8) and the outer fixing sleeve (9) form an extended pipeline. In the extended pipeline, the inner lining sleeve (8) is placed above the outer fixing sleeve (9); The upper end cover (7), the inner liner (8), and the outer fixed sleeve (9) constitute the pipeline body of the multi-layer pump body, wherein the upper end cover (7) is placed at the top, and below the upper end cover (7) is an extension pipeline composed of the inner liner (8) and the outer fixed sleeve (9), and the extension pipeline is also provided with a plurality of extension pipelines composed of the inner liner (8) and the outer fixed sleeve (9), and the outer fixed sleeve (9) located at the bottom is arranged on the base frame (3); A first sealing ring (12) is provided between the upper end cover (7) and the inner sleeve (8), a second sealing ring (13) and a third sealing ring (14) are provided between the inner sleeve (8) and the outer fixed sleeve (9), respectively, and a fourth sealing ring (17) is provided between the outer fixed sleeve (9) and the base frame (3).

2. A multi-layer pump body sealing structure according to claim 1, characterized in that: A motor (2) is provided on the top frame (1).

3. A multi-layer pump body sealing structure according to claim 2, characterized in that: A booster assembly (11) is provided in the pipeline main body of the multi-layer pump body, which is composed of an upper end cover (7), an inner liner (8), and an outer fixed sleeve (9). The motor (2) drives the booster assembly (11) to operate via a drive shaft.

4. A multi-layer pump body sealing structure according to claim 1, characterized in that: A reinforcing rod (4) for reinforcing the structural strength of the multi-layer pump body is provided between the top frame (1) and the bottom frame (3).

5. The multi-layer pump body sealing structure according to claim 1, characterized in that: The upper end cover (7) and the outer fixing sleeve (9) are both provided with a water outlet (6), and the outer fixing sleeve (9) located at the bottom is provided with a water inlet (5).

6. A multi-layer pump body sealing structure according to claim 1, characterized in that: The lower end of the upper end cover (7) is provided with a lower groove (701), and a first sealing ring (12) is provided in the lower groove (701). The upper and lower ends of the outer fixed sleeve (9) are both provided with a first groove (901) and a second groove (902), and the first groove (901) is provided with a second sealing ring (13).

7. A multi-layer pump body sealing structure according to claim 6, characterized in that: The second groove (902) is provided with a receiving groove (15), the second groove (902) is provided with a third sealing ring (14), the third sealing ring (14) is provided with an upper protrusion (1401), the upper protrusion (1401) corresponds to the receiving groove (15), and the inner ring of the third sealing ring (14) is provided with a first protrusion (1402) and a second protrusion (1403).

8. The multi-layer pump body sealing structure according to claim 1, characterized in that: The base frame (3) is provided with an annular groove (16), a fourth sealing ring (17) is provided in the annular groove (16), and a pressing ring (18) matched with the fourth sealing ring (17) is provided at the lower end of the outer fixed sleeve (9) located at the bottom.

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