An air source heat pump with easy access for maintenance

Abstract

The utility model relates to air source heat pump technical field, concretely is a kind of air source heat pump of being convenient for overhauling: including air source heat pump body, the fixed connection of air source heat pump body has locating post, the surface of locating post is engaged and is connected with installation bottom ring, the surface of installation bottom ring is fixedly connected with fan guard, the inner surface of installation bottom ring is slidably connected with limit rod.The utility model rotates limit bolt on the surface of fixed nut, rotates limit bolt from locking round groove, at this time, rotates linkage ring on the surface of fan guard, linkage ring is slid on the guide hole of installation bottom ring by connecting block and drives limit rod, connecting block slides from the limiting hole of locating post, cancel the restriction of locating post to installation bottom ring on the surface of air source heat pump body, at this time, fan guard can be directly taken out, it is simple and convenient to operate, and it is convenient for worker to overhaul fan, greatly improve the efficiency of overhaul.

Description

Technical Field

[0001] This utility model relates to the field of air source heat pump technology, specifically to an air source heat pump that is easy to maintain. Background Technology

[0002] An air source heat pump is a highly efficient and energy-saving device that absorbs heat from the air and converts it into usable heat energy. It is widely used in heating, cooling and hot water supply, and is especially suitable for use in areas with mild climates or winters that are not extremely cold.

[0003] The fan of an air source heat pump is usually covered by a mesh cover to prevent the fan blades from causing danger to workers outside when they are rotating. When the fan blades are being inspected, the mesh cover needs to be removed. However, the fan mesh cover is fixed to the top of the air source heat pump with screws. Removing it is time-consuming and laborious, and the screws are easy to lose, which greatly reduces the efficiency of the maintenance of the fan on the air source heat pump. Utility Model Content

[0004] The purpose of this utility model is to provide an air source heat pump that is easy to maintain, in order to solve the problem mentioned in the background art that the fan cover is fixed to the top of the air source heat pump with screws, which is time-consuming and laborious to disassemble, and the screws are easy to lose, which greatly reduces the maintenance efficiency of the fan on the air source heat pump.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an air source heat pump that is easy to maintain, comprising an air source heat pump body, a positioning column fixedly connected to the air source heat pump body, an installation bottom ring engaged on the surface of the positioning column, a fan guard fixedly connected to the surface of the installation bottom ring, a limit rod slidably connected to the inner surface of the installation bottom ring, a connecting block fixedly connected to the surface of the limit rod, a linkage ring fixedly connected to the surface of the connecting block, the linkage ring slidably connected to the outer surface of the fan guard, a fixing nut fixedly connected to the surface of the linkage ring, a limit bolt threadedly connected to the surface of the fixing nut, and a locking groove formed on the surface of the fan guard.

[0006] Preferably, the fan grille is provided with a sound insulation mechanism inside, the sound insulation mechanism includes a limiting top ring, the limiting top ring is fixedly connected to the inside of the fan grille, an annular composite sound-absorbing plate is sleeved on the inner side of the fan grille, a supporting bottom ring is threaded to the bottom of the fan grille, a limiting bottom ring is fixedly connected to the surface of the supporting bottom ring, and a driving groove is fixedly connected to the bottom of the supporting bottom ring.

[0007] Preferably, multiple sets of positioning posts are provided and are evenly distributed in a circular pattern on the top of the air source heat pump body. Multiple sets of slots are formed on the surface of the mounting bottom ring. The positioning posts are engaged with the slots of the mounting bottom ring. The positioning posts restrict the installation position of the fan grille on the top of the air source heat pump body through the slots of the mounting bottom ring. The height of the positioning posts is the same as the height of the mounting bottom ring.

[0008] Preferably, a limiting hole is formed on the surface of the positioning post, a guide hole is formed on one side of the mounting bottom ring groove, the limiting rod is arc-shaped and slides on the guide hole of the mounting bottom ring, and the limiting rod can slide to be inserted into the limiting hole of the positioning post. A limiting hole is formed on the guide hole of the mounting bottom ring, the connecting block slides on the limiting hole of the mounting bottom ring, and multiple sets of connecting blocks are provided, all of which are driven to rotate by a linkage ring.

[0009] Preferably, the limiting bolt is inserted into the locking groove by a fixing nut, and the locking groove restricts the linkage ring from continuing to rotate on the fan screen by the limiting bolt and the fixing nut.

[0010] Preferably, the bottom of the fan screen is provided with an internal thread, the outside of the support bottom ring is provided with an external thread, and multiple sets of drive grooves are provided, which are evenly distributed in a ring.

[0011] Preferably, the limiting top ring forms an annular groove on the inner top of the limiting top ring, and the supporting bottom ring and the limiting bottom ring form annular grooves on the inner bottom of the limiting top ring, and the annular composite sound-absorbing plate is simultaneously engaged and connected to these two sets of annular grooves.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. In this air source heat pump, the limiting bolt is rotated on the surface of the fixing nut to unscrew the limiting bolt from the locking groove. At this time, the linkage ring is rotated on the surface of the fan guard. The linkage ring drives the limiting rod to slide on the guide hole of the mounting bottom ring through the connecting block. The connecting block slides out from the limiting hole of the positioning column, thus removing the restriction of the positioning column on the mounting bottom ring on the surface of the air source heat pump body. At this time, the fan guard can be directly removed. The operation is simple and convenient, making it easy for workers to inspect the fan and greatly improving the efficiency of maintenance.

[0014] 2. This air source heat pump uses a limiting top ring to form an annular groove on the inner top of the fan grille. An annular composite sound-absorbing panel is fitted inside the fan grille, engaging with the groove. A circular tool is inserted into the drive groove, driving the support bottom ring to rotate on the internal thread at the bottom of the fan grille. As the support bottom ring rotates and rises, the bottom of the annular composite sound-absorbing panel engages with the groove at the bottom of the fan grille. At this point, the annular composite sound-absorbing panel provides sound insulation on the inner wall of the air source heat pump body, significantly reducing fan noise and improving the user experience. Attached Figure Description

[0015] Figure 1 This is a three-dimensional front view of the structure of this utility model;

[0016] Figure 2 This is a frontal perspective three-dimensional schematic diagram of the fan cover structure of this utility model;

[0017] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A;

[0018] Figure 4 This is a schematic diagram of the front view, bottom view, and cross-sectional view of the fan screen structure of this utility model;

[0019] Figure 5 This utility model Figure 4 A magnified structural diagram at point B in the middle.

[0020] In the diagram: 1. Air source heat pump body; 2. Fan grille; 21. Mounting bottom ring; 22. Positioning column; 23. Limiting rod; 24. Connecting block; 25. Linkage ring; 26. Fixing nut; 27. Limiting bolt; 28. Locking groove; 3. Limiting top ring; 31. Annular composite sound-absorbing panel; 32. Supporting bottom ring; 33. Limiting bottom ring; 34. Driving groove. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-5 One embodiment provided by this utility model:

[0023] An air source heat pump that is easy to maintain includes an air source heat pump body 1. A positioning post 22 is fixedly connected to the air source heat pump body 1. A mounting base ring 21 is engaged with the surface of the positioning post 22. A fan grille 2 is fixedly connected to the surface of the mounting base ring 21. A limit rod 23 is slidably connected to the inner surface of the mounting base ring 21. A connecting block 24 is fixedly connected to the surface of the limit rod 23. A linkage ring 25 is fixedly connected to the surface of the connecting block 24. The linkage ring 25 is slidably connected to the outer surface of the fan grille 2. A fixing nut 26 is fixedly connected to the surface of the linkage ring 25. The surface of the nut 26 is threaded with a limiting bolt 27, and the surface of the fan cover 2 is provided with a locking groove 28. The fan cover 2 is located on the top of the air source heat pump body 1. Simply rotate the limiting bolt 27 on the fixing nut 26 to unscrew the limiting bolt 27 from the locking groove 28, and then rotate the linkage ring 25. The linkage ring 25 drives the limiting rod 23 to rotate through the limiting rod 23, and slide the connecting block 24 out from the positioning post 22. The fan cover 2 can then be directly removed from the top of the air source heat pump body 1. The operation is simple and convenient, which makes it easy for workers to maintain the fan and greatly improves the efficiency of maintenance.

[0024] Furthermore, the fan cover 2 is equipped with a sound insulation mechanism, which includes a limiting top ring 3, which is fixedly connected to the inside of the fan cover 2. An annular composite sound-absorbing plate 31 is sleeved on the inner side of the fan cover 2. A supporting bottom ring 32 is threadedly connected to the bottom of the fan cover 2. A limiting bottom ring 33 is fixedly connected to the surface of the supporting bottom ring 32. A driving groove 34 is fixedly connected to the bottom of the supporting bottom ring 32. The annular composite sound-absorbing plate 31 is composed of galvanized steel plate, glass wool, rock wool, polyurethane foam and damping coating. It can be installed on the inner wall of the fan cover 2 to greatly reduce the noise of the fan.

[0025] Furthermore, multiple sets of positioning posts 22 are provided and are evenly distributed in a circular pattern on the top of the air source heat pump body 1. Multiple sets of slots are opened on the surface of the mounting base ring 21. The positioning posts 22 are engaged with the slots of the mounting base ring 21. The positioning posts 22 and the slots of the mounting base ring 21 adopt an interference fit to ensure installation stability and facilitate quick separation during disassembly. The multiple sets of positioning posts 22 restrict the installation position of the fan grille 2 on the top of the air source heat pump body 1 through the slots of the mounting base ring 21, thereby realizing the quick positioning of the fan grille 2 on the top of the air source heat pump body 1. The height of the positioning posts 22 is the same as the height of the mounting base ring 21 to avoid affecting the rotation of the linkage ring 25 on the fan grille 2.

[0026] Furthermore, a limiting hole is formed on the surface of the positioning column 22, and a guide hole is formed on one side of the mounting ring 21. The limiting rod 23 slides in an arc shape on the guide hole of the mounting ring 21, and the limiting rod 23 can slide to be inserted into the limiting hole of the positioning column 22. A limiting hole is formed on the guide hole of the mounting ring 21, and the connecting block 24 slides on the limiting hole of the mounting ring 21. Multiple sets of connecting blocks 24 are provided, and they are all driven to rotate by the linkage ring 25. The linkage ring 25 controls the rotation of multiple sets of connecting blocks 24 at the same time, thereby driving multiple sets of limiting rods 23 to be inserted into the limiting holes of the fan screen 2. When the connecting block 24 rotates to the point where it can no longer move, the limiting bolt 27 is just aligned with the locking groove 28, which facilitates the limiting.

[0027] Furthermore, the limiting bolt 27 is inserted into the locking groove 28 through the fixing nut 26. The locking groove 28 restricts the linkage ring 25 from continuing to rotate on the fan screen 2 through the limiting bolt 27 and the fixing nut 26, thereby ensuring the position of the connecting block 24 and the limiting rod 23. The fixing nut 26 and the limiting bolt 27 are self-locking threads to prevent loosening due to vibration and ensure the stability of the limit. The positioning column 22 restricts the position of the mounting bottom ring 21 through the limiting rod 23, thereby realizing the installation of the fan screen 2 on the air source heat pump body 1. The disassembly principle is the same.

[0028] Furthermore, the bottom of the fan screen 2 is provided with an internal thread, the support bottom ring 32 is provided with an external thread, and multiple sets of drive grooves 34 are provided and are evenly distributed in a ring. The inner wall of the drive grooves 34 is provided with anti-slip texture to enhance the contact force between the tool and the drive grooves 34 and prevent slippage during rotation. By using a round tool, after inserting it into the drive grooves 34, the support bottom ring 32 can be easily driven to rotate on the internal thread of the fan screen 2, thereby installing the support bottom ring 32 and the limiting bottom ring 33 at the bottom of the fan screen 2.

[0029] Furthermore, the limiting top ring 3 forms an annular groove on the inner top of the fan grille 2, and the supporting bottom ring 32 and the limiting bottom ring 33 form annular grooves on the inner bottom of the fan grille 2. The annular composite sound-absorbing plate 31 is simultaneously engaged and connected to these two sets of annular grooves, thereby realizing the installation of the annular composite sound-absorbing plate 31 on the inner wall of the fan grille 2. The edge of the annular composite sound-absorbing plate 31 is provided with an elastic sealing strip to enhance its fit with the fan grille 2 and prevent loosening due to vibration. The annular composite sound-absorbing plate 31 on the inner wall of the fan grille 2 greatly reduces the noise of the fan and improves the user experience of the air source heat pump.

[0030] Working principle: Rotate the limiting bolt 27 on the surface of the fixing nut 26 to unscrew the limiting bolt 27 from the locking groove 28. At this time, rotate the linkage ring 25 on the surface of the fan screen 2. The linkage ring 25 drives the limiting rod 23 to slide on the guide hole of the mounting bottom ring 21 through the connecting block 24. The connecting block 24 slides out from the limiting hole of the positioning post 22, thus removing the restriction of the positioning post 22 on the mounting bottom ring 21 on the surface of the air source heat pump body 1. At this time, the fan screen 2 can be directly removed. The operation is simple and convenient, making it easy for workers to inspect the fan and greatly improving the efficiency of maintenance.

[0031] A ring-shaped groove is formed on the inner top of the fan cover 2 by the limiting top ring 3, and the ring-shaped composite sound-absorbing plate 31 is fitted inside the fan cover 2, so that the ring-shaped composite sound-absorbing plate 31 is engaged with the ring-shaped groove on the top of the fan cover 2. A circular tool is inserted into the drive groove 34 to drive the support bottom ring 32 to rotate on the internal thread at the bottom of the fan cover 2. The ring-shaped groove on the inner bottom of the fan cover 2 by the support bottom ring 32 and the limiting bottom ring 33, as the support bottom ring 32 rotates and rises, the bottom of the ring-shaped composite sound-absorbing plate 31 is engaged with the ring-shaped groove at the bottom of the fan cover 2. At this time, the ring-shaped composite sound-absorbing plate 31 provides sound insulation on the inner wall of the air source heat pump body 1, which greatly reduces the noise of the fan and improves the user experience of the air source heat pump.

[0032] 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. An air source heat pump that is easy to maintain, characterized in that: The device includes an air source heat pump body (1), a positioning column (22) is fixedly connected to the air source heat pump body (1), an installation bottom ring (21) is engaged on the surface of the positioning column (22), a fan screen (2) is fixedly connected to the surface of the installation bottom ring (21), a limit rod (23) is slidably connected to the inner surface of the installation bottom ring (21), a connecting block (24) is fixedly connected to the surface of the limit rod (23), a linkage ring (25) is fixedly connected to the surface of the connecting block (24), the linkage ring (25) is slidably connected to the outer surface of the fan screen (2), a fixing nut (26) is fixedly connected to the surface of the linkage ring (25), a limit bolt (27) is threadedly connected to the surface of the fixing nut (26), and a locking groove (28) is opened on the surface of the fan screen (2).

2. The air source heat pump that is easy to maintain according to claim 1, characterized in that: The fan screen (2) is equipped with a sound insulation mechanism inside. The sound insulation mechanism includes a limiting top ring (3), which is fixedly connected to the inside of the fan screen (2). An annular composite sound-absorbing plate (31) is sleeved on the inner side of the fan screen (2). A supporting bottom ring (32) is threadedly connected to the bottom of the fan screen (2). A limiting bottom ring (33) is fixedly connected to the surface of the supporting bottom ring (32). A driving groove (34) is fixedly connected to the bottom of the supporting bottom ring (32).

3. The air source heat pump that is easy to maintain according to claim 1, characterized in that: The positioning posts (22) are provided in multiple sets and are evenly distributed in a circle on the top of the air source heat pump body (1). The mounting bottom ring (21) has multiple sets of slots on its surface. The positioning posts (22) are engaged and connected to the slots of the mounting bottom ring (21). The positioning posts (22) restrict the installation position of the fan grille (2) on the top of the air source heat pump body (1) through the slots of the mounting bottom ring (21). The height of the positioning posts (22) is the same as the height of the mounting bottom ring (21).

4. The air source heat pump that is easy to maintain according to claim 3, characterized in that: The positioning post (22) has a limiting hole on its surface. The mounting base ring (21) has a guide hole on one side of its slot. The limiting rod (23) slides in an arc shape on the guide hole of the mounting base ring (21). The limiting rod (23) can slide to be inserted into the limiting hole of the positioning post (22). The mounting base ring (21) has a limiting hole on its guide hole. The connecting block (24) slides on the limiting hole of the mounting base ring (21). There are multiple sets of connecting blocks (24), and they are all driven to rotate by the linkage ring (25).

5. An air source heat pump that is easy to maintain according to claim 1, characterized in that: The limiting bolt (27) is inserted into the locking groove (28) by the fixing nut (26), and the locking groove (28) restricts the linkage ring (25) from continuing to rotate on the fan screen (2) by the limiting bolt (27) and the fixing nut (26).

6. An air source heat pump that is easy to maintain according to claim 2, characterized in that: The bottom of the fan screen (2) is provided with an internal thread, the outside of the support bottom ring (32) is provided with an external thread, and the drive circular groove (34) is provided in multiple sets and is evenly distributed in a ring.

7. An air source heat pump that is easy to maintain according to claim 6, characterized in that: The limiting top ring (3) forms an annular groove on the inner top of the limiting top ring (3), and the supporting bottom ring (32) and the limiting bottom ring (33) form an annular groove on the inner bottom of the limiting top ring (3). The annular composite sound-absorbing plate (31) is simultaneously engaged and connected to these two sets of annular grooves.

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