Impeller sealing structure of high-efficiency heating water pump

Abstract

The utility model discloses an impeller sealing structure of a high-efficiency heating water pump, and relates to the technical field of water pumps, the bottom of a volute body is connected with a thrust washer, the volute body is hermetically connected with the bottom of an impeller upper cover through the thrust washer, the bottom of the impeller upper cover is connected with an impeller cover, and the impeller cover is fixedly connected with the impeller upper cover; a shell is arranged on the outer side of the volute body and is a main equipment device shell, the impeller sealing structure is located in the shell, and the top of the volute body is fixedly connected with the shell in an attached mode. Through the arrangement of the thrust washer, the connection between the bottom of the volute and the impeller upper cover can be more stable, and through the arrangement of the thrust washer, the top of the impeller upper cover can be hermetically connected with the thrust washer when the impeller upper cover rotates, so that the abrasion caused by direct contact with the volute is avoided; and sealing can be effectively carried out, so that fluid leakage is prevented.

Description

Technical Field

[0001] This utility model relates to the field of water pump technology, specifically to an impeller sealing structure for a high-efficiency heating water pump. Background Technology

[0002] A water heater pump is a device specifically designed to transport hot water. Its main function is to convert heat energy from a low-temperature heat source into heat energy from a high-temperature heat source to meet the hot water demand in various situations. During installation, it is often necessary to seal the impeller and other parts to prevent air or water leakage. However, existing impeller sealing structures have some shortcomings, such as:

[0003] A centrifugal pump impeller sealing structure, application number CN202323012240.7, is described. This device uses first grooves that are all annular and coaxial with the impeller, with several first grooves arranged along the direction close to the suction port. This can reduce leakage at the pump inlet. However, in actual use, the impeller may rotate at high speed, causing fluid splashing. This may result in fluid leakage at the gaps when the device is connected.

[0004] Therefore, we propose a high-efficiency impeller seal structure for a heating water pump to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this utility model is to provide an impeller sealing structure for a high-efficiency heating water pump, in order to solve the problem mentioned in the background art that most impeller sealing structures on the market may cause fluid splashing due to the impeller's high-speed rotation, which may lead to fluid leakage at the gaps when the device is connected.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an impeller sealing structure for a high-efficiency heating water pump, comprising a volute body and an impeller cover connected to the bottom of the volute body, a thrust washer connected to the bottom of the volute body, and the volute body being sealed to the bottom of the impeller cover via the thrust washer, and an impeller cover being connected to the bottom of the impeller cover, wherein the impeller cover is fixedly connected to the impeller cover.

[0007] The volute body has a shell on its outer side, and the shell is a main equipment device shell, and the impeller sealing structure is located inside the shell. The top of the volute body is fixedly connected to the shell.

[0008] By using thrust washers, the connection between the bottom of the volute and the impeller cover is made more stable. Furthermore, the thrust washers ensure a sealed connection between the top of the impeller cover and the thrust washers during rotation, preventing direct contact with the volute and thus avoiding wear. This effectively seals the connection between the devices, preventing fluid leakage.

[0009] As a preferred technical solution of this utility model, the volute body includes a volute cover, and an array of buffer pads are provided on the outer side of the volute cover, and the bottom of the volute cover is sealed and fixedly connected to the thrust washer.

[0010] The above technical solution enables the volute to connect more firmly with the volute groove inside the housing, and allows for better sealing when the device is connected to the housing.

[0011] As a preferred technical solution of this utility model, the top of the impeller cover is provided with a tight-fitting cover, and the outer side of the top of the tight-fitting cover is provided with an impeller outer groove, and the inner side of the top of the tight-fitting cover is provided with an impeller inner groove, and the outer side of the tight-fitting cover is provided with a fixing hole.

[0012] The above technical solution can remove heat, and the friction will produce waste that will flow into the pipe along with the fluid; it can lubricate, cool, and drain, and also has a sealing function, thus improving efficiency.

[0013] As a preferred technical solution of this utility model, the impeller cover is provided with an impeller body on the top, and the impeller body is provided with a fixed shaft on the top, and the impeller cover is fixedly connected to the fixed hole inside the impeller cover through the fixed shaft.

[0014] The above technical solution enables the impeller cover to be more stable when connected to the impeller top cover, thereby increasing the robustness of the equipment during operation.

[0015] As a preferred technical solution of this utility model, the bottom of the impeller cover is provided with a connecting shaft, and the top of the connecting shaft is fixedly connected to the impeller cover.

[0016] The above technical solution enables the impeller cover to be more securely connected to the connecting shaft, thereby increasing the robustness of the equipment.

[0017] As a preferred technical solution of this utility model, a connecting core is provided inside the bottom of the connecting shaft, and the bottom of the connecting core can be connected to the device at the bottom of the housing.

[0018] The above technical solution enables the connecting shaft to mate with other devices through the connecting core, thereby increasing the robustness of the device when connected to other devices.

[0019] As a preferred technical solution of this utility model, a volute groove is provided on the inner side of the top of the shell, and the volute groove can be connected to the outside of the volute body. When the volute body is connected to the volute groove, the buffer pad will be in a squeezed state and sealed and fixed to the volute groove.

[0020] The above technical solution enables the volute body to be more stable when connected to the housing, thereby increasing the robustness of the connection.

[0021] As a preferred technical solution of this utility model, a shock-absorbing pad is provided on the top of the shell, and the shock-absorbing pad is located at the top of the volute groove.

[0022] As a preferred technical solution of this utility model, the impeller body is fixedly connected to the fixed shaft, and a spring shaft is provided at the top of the fixed shaft, and a locking block is provided on the outside of the spring shaft.

[0023] The above technical solution enables the impeller cover to be more stable when connected to the impeller top cover, thereby increasing the stability of the equipment during installation.

[0024] As a preferred technical solution of this utility model, the locking block can be fixedly connected with the impeller inner groove provided inside the impeller upper cover, and the spring shaft can drive the locking block to retract and expand.

[0025] The above technical solution enables the card block to unfold via the spring shaft when it is snapped into the fixing hole, thus allowing the card block to connect better with the fixing hole.

[0026] Compared with the prior art, the beneficial effects of this utility model are: by setting the thrust washer, the bottom of the volute can be more stable when connected with the impeller cover. Furthermore, by setting the thrust washer, the top of the impeller cover is sealed to the thrust washer when the impeller cover rotates, thereby avoiding direct contact with the volute and causing wear. When the devices are connected, they can be effectively sealed to prevent fluid leakage.

[0027] Furthermore, the inclusion of a buffer pad ensures a more secure connection between the volute and the volute groove inside the housing, resulting in a better seal when the device is connected to the housing.

[0028] Furthermore, by setting an outer impeller groove and an inner impeller groove on the top of the sealing cover, heat can be carried away, and friction will generate excrement that will flow into the pipe along with the fluid; this serves the functions of lubrication, cooling, and sewage discharge, as well as sealing, thereby improving efficiency. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the elevation structure of this utility model;

[0030] Figure 2 This is a three-dimensional structural schematic diagram of the connection between the shell and the sealing structure of this utility model from a frontal cross-section.

[0031] Figure 3 This is a front view cross-sectional structural diagram of the connection between the shell and the sealing structure of this utility model;

[0032] Figure 4 This is a three-dimensional structural diagram showing the disassembly of the sealing structure of this utility model.

[0033] Figure 5 This is a three-dimensional structural diagram of the volute of this utility model;

[0034] Figure 6 This is a three-dimensional structural diagram of the impeller cover of this utility model;

[0035] Figure 7 This is a three-dimensional structural diagram of Embodiment 2 of the present invention;

[0036] Figure 8 For the present utility model Figure 7 A magnified structural diagram at point A.

[0037] In the diagram: 1. Volute body; 101. Volute cover; 102. Buffer pad; 2. Impeller top cover; 201. Sealing cover; 202. Impeller outer groove; 203. Impeller inner groove; 204. Fixing hole; 3. Impeller cover; 301. Impeller body; 302. Fixing shaft; 303. Spring shaft; 304. Locking block; 4. Connecting shaft; 5. Connecting inner core; 6. Thrust washer; 7. Housing; 8. Volute groove; 9. Shock-absorbing pad. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0039] Example 1: To address the problem of ineffective sealing in the prior art, the following solution is disclosed. Please refer to [link / reference]. Figures 1-6 This utility model provides a technical solution: an impeller sealing structure for a high-efficiency heating water pump, including a volute body 1 and an impeller cover 2 connected to the bottom of the volute body 1. A thrust washer 6 is connected to the bottom of the volute body 1, and the volute body 1 is sealed to the bottom of the impeller cover 2 through the thrust washer 6. An impeller cover 3 is connected to the bottom of the impeller cover 2, and the impeller cover 3 is fixedly connected to the impeller cover 2.

[0040] The volute body 1 has a housing 7 on its outer side, and the housing 7 is a main equipment housing. The impeller sealing structure is located inside the housing 7. The top of the volute body 1 is fitted and fixedly connected to the housing 7.

[0041] The volute body 1 includes a volute cover 101, and an array of buffer pads 102 are provided on the outer side of the volute cover 101. The bottom of the volute cover 101 is sealed and fixedly connected to the thrust washer 6. The top of the impeller upper cover 2 is provided with a tight-fitting cover 201, and the outer side of the top of the tight-fitting cover 201 is provided with an impeller outer groove 202. The inner side of the top of the tight-fitting cover 201 is provided with an impeller inner groove 203. The outer side of the tight-fitting cover 201 is provided with a fixing hole 204.

[0042] The impeller cover 3 has an impeller body 301 on top, and a fixed shaft 302 on top of the impeller body 301. The impeller cover 3 is fixedly connected to the fixed hole 204 inside the impeller cover 2 through the fixed shaft 302. The impeller cover 3 has a connecting shaft 4 at the bottom, and the top of the connecting shaft 4 is fixedly connected to the impeller cover 3. The connecting shaft 4 has a connecting core 5 inside at the bottom, and the bottom of the connecting core 5 can be connected to the equipment at the bottom of the housing 7.

[0043] The inner side of the top of the housing 7 is provided with a volute groove 8, and the volute groove 8 can be connected to the outside of the volute body 1. When the volute body 1 is connected to the volute groove 8, the buffer pad 102 will be in a squeezed state and sealed and fixed to the volute groove 8. The top of the housing 7 is provided with a shock-absorbing pad 9, and the shock-absorbing pad 9 is located on the top of the volute groove 8.

[0044] Example 2: This example discloses another connection method for the impeller cover 3, which differs from that in Example 1, as follows: Figure 7-8 As shown, the difference between this embodiment and embodiment 1 is that: the impeller body 301 is fixedly connected to the fixed shaft 302, and the top of the fixed shaft 302 is provided with a spring shaft 303, and the outer side of the spring shaft 303 is provided with a locking block 304; the locking block 304 can be snapped and fixedly connected with the impeller inner groove 203 provided inside the impeller upper cover 2, and the spring shaft 303 can drive the locking block 304 to retract and unfold.

[0045] Working principle: When using the impeller sealing structure of the high-efficiency heating water pump, the volute body 1 is first placed inside the housing 7, so that the volute body 1 is fixed inside the housing 7. Then, the volute body 1 is connected to the impeller cover 2 through the thrust washer 6, so that the volute body 1 and the impeller cover 2 are sealed together. At the same time, the bottom of the impeller cover 2 is fixedly connected to the impeller cover 3, so that when the impeller cover 3 rotates, it can also drive the impeller cover 2 to rotate.

[0046] By providing a buffer pad 102 on the outside of the volute cover 101, when the volute body 1 is connected to the inside of the housing 7, the buffer pad 102 fits against the inside of the volute groove 8, thereby squeezing the volute cover 101 and fixing the volute cover 101 in the volute groove 8; when the impeller cover 2 is connected to the impeller cover 3, it can be fixedly connected to the fixing hole 204 provided inside the impeller cover 2 through the fixing shaft 302 at the top of the impeller body 301, thereby making the connection between the impeller cover 2 and the impeller cover 3 more secure.

[0047] This completes a series of tasks. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0048] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A high-efficiency heating water pump impeller sealing structure, comprising a volute body (1) and an impeller upper cover (2) connected with the bottom of the volute body (1), characterized in that, The volute body (1) is connected with a thrust washer (6) at the bottom, and the volute body (1) is sealingly connected with the upper cover of the impeller (2) at the bottom through the thrust washer (6), and the upper cover of the impeller (2) is connected with an impeller cover (3), and the impeller cover (3) is fixedly connected with the upper cover of the impeller (2). The volute body (1) is provided with a shell (7) outside, and the shell (7) is a main device shell, and the impeller sealing structure is located in the inside of the shell (7), and the volute body (1) is fixedly connected with the shell (7) at the top.

2. The impeller seal structure of a high-efficiency heating water pump according to claim 1, wherein The volute body (1) comprises a volute cover (101), and a plurality of buffer pads (102) are arranged outside the volute cover (101), and the volute cover (101) is sealingly and fixedly connected with the thrust washer (6) at the bottom.

3. The impeller seal structure of a high-efficiency heating water pump according to claim 2, wherein The upper cover of the impeller (2) is provided with a sealing cover (201), and the sealing cover (201) is provided with an outer groove (202) outside the top, and the sealing cover (201) is provided with an inner groove (203) inside the top, and the sealing cover (201) is provided with a fixing hole (204) outside.

4. The impeller seal structure of a high-efficiency heating water pump according to claim 3, wherein The impeller cover (3) is provided with an impeller body (301) at the top, and the impeller body (301) is provided with a fixed shaft (302) at the top, and the impeller cover (3) is fixedly connected with the fixing hole (204) inside the upper cover of the impeller (2) through the fixed shaft (302).

5. The impeller seal structure of a high-efficiency heating water pump according to claim 4, wherein The impeller cover (3) is provided with a connecting shaft (4) at the bottom, and the connecting shaft (4) is fixedly connected with the impeller cover (3) at the top.

6. The impeller seal structure of a high-efficiency heating water pump according to claim 5, wherein The connecting shaft (4) is provided with a connecting inner core (5) inside at the bottom, and the connecting inner core (5) can be connected with the device at the bottom of the shell (7).

7. The impeller seal structure of a high-efficiency heating water pump according to claim 6, wherein The shell (7) is provided with a volute groove (8) inside at the top, and the volute groove (8) can be connected with the outside of the volute body (1), and when the volute body (1) is connected with the volute groove (8), the buffer pad (102) will be in a state of extrusion and sealingly and fixedly connected with the volute groove (8).

8. The impeller seal structure of a high-efficiency heating water pump according to claim 7, wherein The shell (7) is provided with a shock pad (9) at the top, and the shock pad (9) is located at the top of the volute groove (8).

9. The impeller seal structure for a high efficiency heating water pump according to claim 4, wherein The impeller body (301) is fixedly connected with the fixed shaft (302), and the fixed shaft (302) is provided with a spring shaft (303) at the top, and the spring shaft (303) is provided with a clamping block (304) outside.

10. The impeller seal structure of a high-efficiency heating water pump according to claim 9, wherein The clamping block (304) can be buckled and fixedly connected with the inner groove (203) inside the upper cover of the impeller (2), and the spring shaft (303) can drive the clamping block (304) to contract and expand.

Images