Handle structure suitable for heat pump water heater

Abstract

The utility model provides a handle structure suitable for a heat pump water heater, which comprises a fixed plate and a handle main body, the middle part of the fixed plate is provided with a mounting hole matched with an opening on the surface of an outer container of the water heater, one side of the fixed plate is provided with an annular clamping groove, and a sealing rubber ring is arranged in the annular clamping groove. The sealing rubber ring is arranged between the fixing plate and the outer container of the water heater, the sealing rubber ring is in interference fit with the outer container, and the sealing effect is achieved through deformation of the sealing rubber ring, so that on one hand, water flow can be prevented from entering a unit along a gap, and on the other hand, foam materials can be prevented from expanding and overflowing to the outer side of the unit during production; and water flow can flow to the bottom along the edge of the check ring through the arranged water guide groove to be discharged through the water guide groove, and water is prevented from being accumulated too much and entering the machine.

Description

Technical Field

[0001] The utility model belongs to the technical field of heat pumps, and particularly relates to a handle structure applicable to a heat pump water heater. Background Technique

[0002] Existing household air source heat pump water heaters usually have a cylindrical structure. The smooth surface of the outer tank makes it difficult to handle the unit during installation and transportation, greatly increasing the installation efficiency and risk. To facilitate the handling and installation of the heat pump, a handle structure is generally provided on both sides of the heat pump casing. For existing household air source integral water heaters, there is usually a water storage tank at the lower part. Copper tubes are wound around the outside of the water storage tank, or microchannels are used as the condensation heat exchanger of the heat pump water heater, transferring the heat carried by the high-temperature and high-pressure refrigerant discharged by the compressor to the water in the water storage tank to heat the water in the water storage tank. Since the material of the water storage tank is usually iron or stainless steel, the material of the copper tubes wound around the outside is copper, and the material of the microchannels is aluminum. When two different materials come into contact, if water is added at the same time, a galvanic reaction will occur, causing corrosion and perforation of the water storage tank, copper tubes or microchannels, resulting in the scrapping of the entire air source heat pump water heater. Because the traditional handle is fixed on the arc-shaped outer tank through the buckle on the handle, there are the following disadvantages in the fixation:

[0003] Production problem: When producing the water tank, the foaming material will expand. Due to the gap between the handle and the color plate, the foaming material will overflow from the gap and needs to be cleaned, affecting the production efficiency. And when installing, the handle can shake and cannot maintain the appearance consistency.

[0004] Waterproof problem: Water can enter and exit the inside of the unit through the gap. After a long time, it may corrode important internal components, affecting the quality and use of the unit.

[0005] For the above reasons, we provide a handle structure with good waterproof performance and good sealing. Content of the Utility Model

[0006] The purpose of the utility model is to provide a handle structure applicable to a heat pump water heater, aiming to solve the problems raised in the background technique.

[0007] To achieve the above purpose, the utility model provides the following technical solution: A handle structure applicable to a heat pump water heater, including a fixing plate and a handle main body. An installation hole matching the hole opened on the surface of the outer tank of the water heater is provided in the middle of the fixing plate. An annular slot is provided on one side of the fixing plate, and a sealing rubber ring is installed in the annular slot.

[0008] The handle body includes a handle box and a retaining ring. The top, bottom, and both sides of the handle box are provided with clamping blocks. The fixing plate is arranged at the opening on the inner cavity surface of the water heater outer tank, and the mounting holes are aligned with the openings. The handle box passes through the mounting holes and the openings and fixes the fixing plate through the clamping blocks, and the retaining ring is closely attached to the outer wall of the water heater outer tank.

[0009] As a preferred technical solution of the present invention, the sealing rubber ring is in interference fit with the inner cavity of the water heater outer tank, and the interference thickness is 0.6 mm.

[0010] As a preferred technical solution of the present invention, the inner cavity of the handle box is inclined upward, and the inclination angles of the top and bottom of the inner cavity of the handle box are both 30 degrees.

[0011] As a preferred technical solution of the present invention, a water guide groove is opened at the bottom of the retaining ring.

[0012] As a preferred technical solution of the present invention, the inclination angle of the top of the mounting hole is 28 degrees, and the inclination angle of the bottom is 32 degrees.

[0013] As a preferred technical solution of the present invention, a wedge-shaped slope is opened at the top slope of the mounting hole where the fixing plate is located. The inclination angle of the wedge-shaped slope is adapted to the inclination angle of the clamping block. When the clamping blocks on both sides and the bottom of the handle box fix the fixing plate, the clamping blocks at the top fit the wedge-shaped slope.

[0014] As a preferred technical solution of the present invention, the sealing rubber ring can be soft rubber.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: A sealing rubber ring is arranged between the fixing plate and the water heater outer tank, and the sealing rubber ring is in interference fit with the outer tank. The sealing effect is achieved by relying on the deformation of the sealing rubber ring. In this way, on the one hand, it can prevent water flow from entering the inside of the unit along the gap, and on the other hand, it can also prevent the foaming material from expanding and overflowing to the outside of the unit during production. Moreover, the water guide groove provided enables the water flow to flow along the edge of the retaining ring to the bottom and be discharged through the water guide groove, avoiding excessive water accumulation from entering the machine interior. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 1 is a schematic structural diagram of the present invention;

[0018] Figure 2 is a schematic installation structure diagram of the present invention;

[0019] Figure 3 It is a schematic structural diagram of the handle main body in the present utility model;

[0020] Figure 4 It is a schematic structural diagram of the fixing plate in the present utility model;

[0021] Figure 5 It is a schematic disassembled structural diagram of the present utility model;

[0022] Figure 6 It is a schematic sectional structural diagram of the installation state of the present utility model;

[0023] Figure 7 In the present utility model Figure 6 It is an enlarged schematic structural diagram at position A.

[0024] In the figure: 1, fixing plate; 2, handle main body; 21, handle box; 22, retaining ring; 23, clamping block; 3, mounting hole; 4, annular clamping groove; 5, sealing rubber ring; 6, water guide groove; 7, wedge-shaped slope surface. Specific implementation manners

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0026] Please refer to Figures 1 - 7 , the present utility model provides the following technical solutions: A handle structure applicable to a heat pump water heater includes a fixing plate 1 and a handle main body 2. An installation hole 3 matching the opening on the surface of the outer tank of the water heater is opened in the middle of the fixing plate 1. An annular clamping groove 4 is opened on one side of the fixing plate 1, and a sealing rubber ring 5 is installed in the annular clamping groove 4.

[0027] In this embodiment, the handle main body 2 includes a handle box 21 and a retaining ring 22. Clamping blocks 23 are provided at the top, bottom and both sides of the handle box 21. The fixing plate 1 is arranged at the opening on the inner cavity surface of the outer tank of the water heater and the installation hole 3 is aligned with the opening. The handle box 21 passes through the installation hole 3 and the opening and fixes the fixing plate 1 through the clamping blocks 23, and the retaining ring 22 is closely attached to the outer wall of the outer tank of the water heater.

[0028] Specifically, through the provided clamping blocks 23, it is convenient to buckle and fix the handle main body 2 and the fixing plate 1.

[0029] In this embodiment, the sealing rubber ring 5 is in interference fit with the inner cavity of the outer tank of the water heater and the interference thickness is 0.6 mm.

[0030] Specifically, the sealing rubber ring 5 is interference-fitted with the inner wall of the outer tank of the water heater, thereby relying on the deformation of the sealing rubber ring 5 to achieve a sealing effect. In this way, on the one hand, water can be prevented from flowing into the unit along the gap, and on the other hand, the foam material can be prevented from expanding and overflowing to the outside of the unit during production.

[0031] In this embodiment, the inner cavity of the handle box 21 is tilted upward and the top and bottom of the inner cavity of the handle box 21 are tilted at an angle of 30 degrees. The top tilt angle of the mounting hole 3 is 28 degrees and the bottom tilt angle is 32 degrees.

[0032] Specifically, since the inner cavity of the handle box 21 is tilted upward, it is more ergonomic and workers can be more comfortable when carrying it. Since the top and bottom tilt angles of the mounting hole 3 deviate from the top and bottom tilt angles of the handle box 21 by two degrees respectively, after the fixing plate 1 is placed at the opening on the inner wall of the water heater outer tank, the handle box 21 is passed through the opening and the mounting hole 3 provided in the water heater outer tank, thereby making it easier for the clamping block 23 to quickly pass through the mounting hole 3 to fix the handle box 21 to the fixing plate 1.

[0033] In this embodiment, a water guide groove 6 is formed at the bottom of the retaining ring 22 .

[0034] Specifically, when water flows into the gap between the retaining ring 22 and the outer tank of the water heater, the water can flow along the edge of the retaining ring 22 to the bottom and be discharged through the water guide groove 6, preventing excessive water from accumulating and entering the interior of the machine.

[0035] In this embodiment, a wedge-shaped slope 7 is provided on the top inclined surface of the fixing plate 1 located at the mounting hole 3. The inclination angle of the wedge-shaped slope 7 is adapted to the inclination angle of the clamping block 23. When the clamping blocks 23 on both sides and the bottom of the handle box 21 fix the fixing plate 1, the top clamping block 23 fits into the wedge-shaped slope 7.

[0036] Specifically, when the sealing rubber ring 5 deforms to seal and open the handle box 21 and the outer tank of the water heater, the wedge-shaped slope 7 and the block 23 form an interference fit, so that the fixing plate 1 and the outer tank of the water heater remain in contact.

[0037] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A handle structure applicable to a heat pump water heater, comprising a fixing plate (1) and a handle body (2), characterized in that: An installation hole (3) matching the opening on the surface of the outer tank of the water heater is provided in the middle of the fixed plate (1). An annular clamping groove (4) is provided on one side of the fixed plate (1), and a sealing rubber ring (5) is installed in the annular clamping groove (4). The handle main body (2) includes a handle box (21) and a retaining ring (22). Clamping blocks (23) are provided at the top, bottom and both sides of the handle box (21). The fixed plate (1) is arranged at the opening on the inner cavity surface of the outer tank of the water heater, and the installation hole (3) is aligned with the opening. The handle box (21) passes through the installation hole (3) and the opening, and the fixed plate (1) is fixed by the clamping blocks (23), and the retaining ring (22) is closely attached to the outer wall of the outer tank of the water heater.

2. The handle structure applicable to a heat pump water heater according to claim 1, wherein: The sealing rubber ring (5) is in interference fit with the inner cavity of the outer tank of the water heater, and the interference thickness is 0.6 mm.

3. The handle structure applicable to a heat pump water heater according to claim 1, characterized in that: The inner cavity of the handle box (21) is inclined upward, and the inclination angles of the top and bottom of the inner cavity of the handle box (21) are both 30 degrees.

4. The handle structure applicable to a heat pump water heater according to claim 1, characterized in that: A water guide groove (6) is provided at the bottom of the retaining ring (22).

5. The handle structure applicable to a heat pump water heater according to claim 1, characterized in that: The inclination angle of the top of the installation hole (3) is 28 degrees, and the inclination angle of the bottom is 32 degrees.

6. The handle structure applicable to a heat pump water heater according to claim 1, characterized in that: A wedge-shaped slope (7) is provided at the top slope of the installation hole (3) on the fixed plate (1). The inclination angle of the wedge-shaped slope (7) is adapted to the inclination angle of the clamping block (23). When the clamping blocks (23) on both sides and the bottom of the handle box (21) fix the fixed plate (1), the clamping block (23) at the top fits the wedge-shaped slope (7).

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