Variable frequency water pump assembly for factory quality detection of variable frequency heat pump unit

Abstract

The utility model provides a variable-frequency water pump assembly for factory quality detection of a variable-frequency heat pump unit, which relates to the technical field of water pumps and comprises a buffer water tank and a constant-temperature water tank, the buffer water tank is communicated and connected with a pipeline I, the constant-temperature water tank is communicated and connected with a pipeline II, and the other ends of the pipeline I and the pipeline II are communicated and connected with a proportioning valve. A third pipeline is further connected to the proportioning valve in a penetrating mode, the third pipeline is connected with the variable-frequency heat pump unit in a penetrating mode, a variable-frequency water pump body is arranged on the third pipeline, and a protection device is further arranged on the variable-frequency water pump body. Through cooperation of the buffer water tank, the constant-temperature water tank and the proportioning valve, the temperature of water entering the variable-frequency heat pump unit can be basically kept constant, and operation is convenient and fast; in addition, a protection device is arranged, the influence of abnormal vibration such as the water hammer effect on the variable-frequency water pump body can be effectively reduced, and the service life of the variable-frequency water pump body is effectively prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of water pumps, in particular to a variable frequency water pump component used for factory quality inspection of a variable frequency heat pump unit. Background Art

[0002] During the mass production of variable-frequency heat pump units, to ensure product quality and performance consistency, they must undergo rigorous startup and testing before packaging. Currently, a common practice is to connect the heat pump units to the water circuits and conduct online testing in the production line's inspection room. This testing method primarily relies on monitoring operating parameters such as water temperature, and manually comparing the results to determine product compliance.

[0003] However, when the variable frequency heat pump unit detects whether the cold / heat capacity is qualified, water of appropriate temperature will be injected into the variable frequency heat pump unit for detection; but before injecting water of appropriate temperature, the water flowing out of the variable frequency heat pump unit needs to be mixed with hot / cold water in advance, and then injected after reaching the appropriate temperature, which is a more troublesome operation; in addition, the variable frequency water pump is prone to damage to the pump body when encountering water hammer effect or external force impact. Utility Model Content

[0004] The utility model provides a variable frequency water pump assembly for factory quality inspection of a variable frequency heat pump unit, so as to solve at least one of the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the utility model discloses a variable frequency water pump assembly for factory quality inspection of variable frequency heat pump units, including a buffer water tank and a constant temperature water tank. Pipe one is connected to the buffer water tank, and pipe two is connected to the constant temperature water tank. The other ends of pipe one and pipe two are both connected to a proportional control valve. The proportional control valve is also connected to pipe three. Pipe three is connected to the variable frequency heat pump unit. A variable frequency water pump body is provided on pipe three, and a protective device is also provided on the variable frequency water pump body.

[0006] Preferably, the variable frequency water pump body includes a water pump shell, one end of the water pump shell is connected to the water inlet pipe, the water inlet pipe is provided with a flange plate 1, the pipeline 3 is provided with a flange plate 2, and the flange plate 2 is matched with the flange plate 1.

[0007] Preferably, the protection device includes a mounting plate, a flexible buffer pad is fixedly provided on the mounting plate, a fixing plate is fixedly provided on the flexible buffer pad, a stabilizing block is installed on the fixing plate, and the stabilizing block is fixedly connected to the water pump housing.

[0008] Preferably, the protection device includes bilaterally symmetrical vertical plates, and flexible pads are provided on the sides of the vertical plates that are close to each other.

[0009] Preferably, the flexible pad on one side is in contact with the water pump housing; the flexible pad on the other side is provided with a through hole, the pipe three passes through the through hole, and the flexible pad on the other side is in contact with the flange two.

[0010] Preferably, the fixing plate is fixedly provided with front-to-back symmetrical limiting plates, an airbag is fixedly provided on the side where the limiting plates are close to each other, an arc plate is provided on the side where the airbags are close to each other, and the arc plate is in contact with the water pump housing.

[0011] Preferably, holes are opened symmetrically on the limiting plate, a sliding rod is slidably arranged in the hole, one end of the sliding rod is fixedly connected to the arc plate, and the other end of the sliding rod is fixedly connected to the movable plate.

[0012] Preferably, an elastic member 1 is further sleeved on the slide rod, one end of the elastic member 1 is fixedly connected to the arc plate, and the other end of the elastic member 1 is fixedly connected to the limit plate.

[0013] Preferably, the stabilizing block is slidably arranged on the fixed plate, and an air box is fixedly arranged on the side where the limit plates are close to each other. An air pushing plate is slidably arranged in the air box, and a push rod is fixedly arranged on the side where the air pushing plates are close to each other. The push rod slides and extends out of the air box, and the push rod is fixedly connected to the stabilizing block. An air pipe is arranged on the air box, and the air pipe is through-connected to the airbag.

[0014] Preferably, a second elastic member is provided on the push rod, one end of the second elastic member is fixedly connected to the air push plate, and the other end of the second elastic member is fixedly connected to the air box.

[0015] Compared with the existing technology, the utility model provides a variable frequency water pump assembly for factory quality inspection of variable frequency heat pump units. By setting a buffer water tank, a constant temperature water tank and a proportional control valve, the water temperature entering the variable frequency heat pump unit can be kept basically constant, and the temperature adjustment and control is more convenient; in addition, the provision of a protective device can effectively protect the variable frequency water pump body, reduce the impact of abnormal vibrations such as water hammer effect on the variable frequency water pump body, and effectively increase the service life of the variable frequency water pump body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 It is a structural diagram of the utility model;

[0018] Figure 2 This is a schematic structural diagram of the variable frequency water pump body of the utility model;

[0019] Figure 3 This is a schematic structural diagram of the protection device of the present utility model;

[0020] Figure 4 This is a schematic diagram of the installation of the air box of the present utility model.

[0021] In the figure: 1. Variable frequency water pump body; 2. Pipeline three; 3. Proportional control valve; 4. Pipeline one; 5. Buffer water tank; 6. Constant temperature water tank; 7. Pipeline two; 8. Water pump housing; 9. Flexible pad; 10. Vertical plate; 11. Stabilizing block; 12. Fixed plate; 13. Flexible buffer pad; 14. Flange two; 15. Flange one; 16. Water inlet pipe; 17. Limit plate; 18. Movable plate; 19. Arc plate; 20. Air bag; 21. Sliding rod; 22. Elastic part one; 23. Elastic part two; 24. Push rod; 25. Air push plate; 26. Air box; 27. Air pipe; 28. Mounting plate. DETAILED DESCRIPTION

[0022] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc. should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0025] Example 1

[0026] The embodiment of the present utility model provides a variable frequency water pump assembly for factory quality inspection of variable frequency heat pump units, such as Figure 1-4As shown, it includes a buffer water tank 5 and a constant temperature water tank 6. The buffer water tank 5 is connected with a pipe 1 4, and the constant temperature water tank 6 is connected with a pipe 2 7. The other ends of pipe 1 4 and pipe 2 7 are both connected with a proportional control valve 3. The proportional control valve 3 is also connected with a pipe 3 2. Pipe 3 2 is connected with the variable frequency heat pump unit. A variable frequency water pump body 1 is provided on pipe 3 2, and a protective device is also provided on the variable frequency water pump body 1.

[0027] Among them, the buffer water tank 5 is connected to the variable frequency heat pump unit;

[0028] The working principle and beneficial effects of the above technical solution are as follows: the water in the variable frequency heat pump unit enters the buffer water tank 5, and the water in the constant temperature water tank 6 is kept at a constant temperature (the temperature is controlled by technical personnel in this field), and then the proportion of the water in the constant temperature water tank 6 and the buffer water tank 5 entering the pipe three 2 is controlled by the proportional regulating valve 3, and mixed directly in the pipe three 2, which has higher mixing efficiency and more convenient operation, effectively replaces pre-mixing, and can better control the temperature of the water entering the variable frequency heat pump unit, and the variable frequency water pump body 1 can also adjust the water flow rate, and the structural coordination is higher; and the provision of a protective device can effectively protect the variable frequency water pump body, reduce the impact of abnormal vibrations such as the water hammer effect on the variable frequency water pump body, and effectively increase the service life of the variable frequency water pump body.

[0029] Example 2

[0030] On the basis of the above embodiment 1, Figure 2-3 As shown, the variable frequency water pump body 1 includes a water pump shell 8, one end of the water pump shell 8 is connected to a water inlet pipe 16, a flange 15 is provided on the water inlet pipe 16, and a flange 2 14 is provided on the pipe 3 2, and the flange 2 14 cooperates with the flange 1 15.

[0031] Among them, preferably, the protection device includes a mounting plate 28, a flexible buffer pad 13 is fixedly provided on the mounting plate 28, a fixing plate 12 is fixedly provided on the flexible buffer pad 13, a stabilizing block 11 is installed on the fixing plate 12, and the stabilizing block 11 is fixedly connected to the water pump housing 8.

[0032] The beneficial effects of the above technical solution are: through the cooperation between flange 2 14 and flange 1 15, the variable frequency water pump body 1 can be quickly connected to pipe 3 2; in addition, the provision of a flexible buffer pad 13 can effectively alleviate the vibration of the variable frequency water pump body 1 in the vertical direction, with a simple structure, easy use, and good buffering effect.

[0033] Example 3

[0034] On the basis of the above embodiment 2, Figure 2-4 The protective device comprises bilaterally symmetrical vertical plates 10, and flexible pads 9 are provided on the sides of the vertical plates 10 that are close to each other.

[0035] Among them, preferably, the protective device includes a mounting plate 28, on which a flexible buffer pad 13 is fixedly provided, wherein the flexible pad 9 on one side is in contact with the water pump housing 8; the flexible pad 9 on the other side is provided with a through hole, through which the pipe three 2 passes, and the flexible pad 9 on the other side is in contact with the flange two 14.

[0036] The beneficial effects of the above technical solution are: when the variable frequency water pump body 1 vibrates in the left and right directions, the flexible pad 9 can effectively alleviate the vibration of the variable frequency water pump body 1 in the left and right directions; and a through hole is opened on the flexible pad 9 on the other side, which can avoid the pipe three 2, making the installation more convenient and more practical.

[0037] Example 4

[0038] On the basis of the above embodiment 3, Figure 3 As shown, a front-to-back symmetrical limiting plate 17 is fixedly provided on the fixing plate 12 , an air bag 20 is fixedly provided on the side of the limiting plate 17 close to each other, and an arc plate 19 is provided on the side of the air bag 20 close to each other, and the arc plate 19 is in contact with the water pump housing 8 .

[0039] Among them, preferably, the limiting plate 17 is provided with holes symmetrically on the left and right, and a sliding rod 21 is slidably arranged in the hole. One end of the sliding rod 21 is fixedly connected to the arc plate 19, and the other end of the sliding rod 21 is fixedly connected to the movable plate 18.

[0040] Among them, preferably, an elastic member 22 is further sleeved on the sliding rod 21 , one end of the elastic member 22 is fixedly connected to the arc plate 19 , and the other end of the elastic member 22 is fixedly connected to the limiting plate 17 .

[0041] The working principle and beneficial effects of the above technical solution are as follows: when the variable frequency water pump body 1 vibrates in the front-to-back direction, the airbag 20 will have a buffering effect. At the same time, the variable frequency water pump body 1 drives the arc plate 19 to move back and forth, and the arc plate 19 drives the slide rod 21 to move back and forth. The elastic part 22 will be compressed and stretched, thereby having a buffering effect. Through the cooperation of the airbag 20 and the elastic part 22, the buffering effect is better and the protection effect is better.

[0042] Example 5

[0043] On the basis of Example 4, Figure 4 As shown, the stabilizing block 11 is slidably set on the fixed plate 12, and an air box 26 is fixedly set on the side where the limit plates 17 are close to each other. An air pushing plate 25 is slidably set in the air box 26, and a push rod 24 is fixedly set on the side where the air pushing plates 25 are close to each other. The push rod 24 slides and extends out of the air box 26. The push rod 24 is fixedly connected to the stabilizing block 11. An air pipe 27 is set on the air box 26, and the air pipe 27 is connected to the airbag 20.

[0044] Among them, preferably, a second elastic member 23 is provided on the push rod 24 , one end of the second elastic member 23 is fixedly connected to the push plate 25 , and the other end of the second elastic member 23 is fixedly connected to the air box 26 .

[0045] Wherein, both the air pipe 27 and the air box 26 are provided with a one-way valve.

[0046] The working principle and beneficial effects of the above technical solution are as follows: when the variable frequency water pump body 1 vibrates in the front-to-back direction, the variable frequency water pump body 1 drives the stabilizing block 11 to slide back and forth on the fixing plate 12, the stabilizing block 11 drives the push rod 24 to slide in the air box 26, and the push rod 24 drives the push plate 25 to slide in the air box 26, thereby pushing the gas in the air box 26 into the air bag 20 through the air pipe 27, and the air bag 20 gradually expands. The supporting force of the air bag 20 will gradually increase. In addition, as the air bag 20 expands, the gas entering the air bag 20 will continue to decrease, and the gas pressure in the air box 26 will gradually increase. The moving range of the push rod 24 will also be smaller, and the push rod 24 will provide a greater supporting force to the stabilizing block 11, and the elastic member 23 can also play a buffering and shock-absorbing effect. Through the cooperation of the air box 26, the elastic member 23 and the air bag 20, the variable frequency water pump body 1 can be given a supporting force and a buffering force, thereby making the buffering effect of the variable frequency water pump body 1 better, effectively improving the seismic effect of the device, and being more practical.

[0047] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A variable frequency water pump assembly for factory quality inspection of variable frequency heat pump units, characterized in that: The invention comprises a buffer water tank (5) and a constant temperature water tank (6). The buffer water tank (5) is connected to a first pipe (4), the constant temperature water tank (6) is connected to a second pipe (7), the other ends of the first pipe (4) and the second pipe (7) are connected to a proportional regulating valve (3), the proportional regulating valve (3) is also connected to a third pipe (2), the third pipe (2) is connected to a variable frequency heat pump unit, the third pipe (2) is provided with a variable frequency water pump body (1), and the variable frequency water pump body (1) is also provided with a protective device.

2. A variable frequency water pump assembly for factory quality inspection of a variable frequency heat pump unit according to claim 1, characterized in that: The variable frequency water pump body (1) comprises a water pump housing (8), one end of the water pump housing (8) is connected to a water inlet pipe (16), a flange plate 1 (15) is provided on the water inlet pipe (16), a flange plate 2 (14) is provided on the pipeline 3 (2), and the flange plate 2 (14) is matched with the flange plate 1 (15).

3. A variable frequency water pump assembly for factory quality inspection of a variable frequency heat pump unit according to claim 2, characterized in that: The protective device comprises a mounting plate (28), a flexible buffer pad (13) is fixedly arranged on the mounting plate (28), a fixing plate (12) is fixedly arranged on the flexible buffer pad (13), a stabilizing block (11) is installed on the fixing plate (12), and the stabilizing block (11) is fixedly connected to the water pump housing (8).

4. A variable frequency water pump assembly for factory quality inspection of a variable frequency heat pump unit according to claim 3, characterized in that: The protective device comprises left-right symmetrical vertical plates (10), and flexible pads (9) are provided on the sides of the vertical plates (10) that are close to each other.

5. A variable frequency water pump assembly for factory quality inspection of a variable frequency heat pump unit according to claim 4, characterized in that: The flexible pad (9) on one side contacts the water pump housing (8); the flexible pad (9) on the other side is provided with a through hole, the pipe three (2) passes through the through hole, and the flexible pad (9) on the other side abuts against the flange two (14).

6. A variable frequency water pump assembly for factory quality inspection of a variable frequency heat pump unit according to claim 3, characterized in that: A front-to-back symmetrical limiting plate (17) is fixedly provided on the fixing plate (12); an air bag (20) is fixedly provided on one side of the limiting plate (17) close to each other; an arc plate (19) is provided on one side of the air bag (20) close to each other; and the arc plate (19) is in contact with the water pump housing (8).

7. A variable frequency water pump assembly for factory quality inspection of a variable frequency heat pump unit according to claim 6, characterized in that: The limiting plate (17) is provided with holes symmetrically on the left and right sides, and a slide rod (21) is slidably arranged in the hole. One end of the slide rod (21) is fixedly connected to the arc plate (19), and the other end of the slide rod (21) is fixedly connected to the moving plate (18).

8. A variable frequency water pump assembly for factory quality inspection of a variable frequency heat pump unit according to claim 7, characterized in that: An elastic member 1 (22) is also sleeved on the slide bar (21), one end of the elastic member 1 (22) is fixedly connected to the arc plate (19), and the other end of the elastic member 1 (22) is fixedly connected to the limit plate (17).

9. A variable frequency water pump assembly for factory quality inspection of a variable frequency heat pump unit according to claim 7, characterized in that: The stabilizing block (11) is slidably arranged on the fixing plate (12), and an air box (26) is fixedly arranged on the side where the limiting plates (17) are close to each other. An air pushing plate (25) is slidably arranged in the air box (26), and a push rod (24) is fixedly arranged on the side where the air pushing plates (25) are close to each other. The push rod (24) slides and extends out of the air box (26). The push rod (24) is fixedly connected to the stabilizing block (11). An air pipe (27) is arranged on the air box (26), and the air pipe (27) is connected to the air bag (20).

10. A variable frequency water pump assembly for factory quality inspection of a variable frequency heat pump unit according to claim 9, characterized in that: The push rod (24) is provided with a second elastic member (23), one end of the second elastic member (23) is fixedly connected to the air pushing plate (25), and the other end of the second elastic member (23) is fixedly connected to the air box (26).

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