Locking components and heat pump equipment

Abstract

This utility model discloses a locking assembly and a heat pump device, relating to the field of heat pump technology. The locking assembly includes a locking hook and a support respectively fixed to a first panel and a second panel, and a fastener structure rotatably connected to the support. The fastener structure includes a locking cover with a latching portion at one end. The locking cover is configured to move relative to the support and engage the latching portion with the locking hook. This utility model enables rapid assembly and disassembly between the front and rear panels of a heat pump device, improving the production and maintenance efficiency of the heat pump device.

Description

Technical Field

[0001] This utility model relates to the field of heat pump technology, and in particular to a locking assembly and a heat pump device. Background Technology

[0002] To facilitate wiring and maintenance of heat pump equipment, the front panel of the heat pump unit is generally designed to be detachable. In related technologies, the front and rear panels are usually connected by screws. Due to the weight of the front panel, disassembly using a screw connection requires the operator to hold the front panel with one hand and tighten the screws with the other, which is difficult and inefficient. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a locking assembly for installation in heat pump equipment, which can improve the efficiency of disassembly and assembly between the front and rear panels.

[0004] This utility model also proposes a heat pump device having the above-mentioned locking assembly.

[0005] According to a first aspect of the present invention, a locking assembly is applied to a heat pump device, comprising: a locking hook fixedly connected to a first panel of the heat pump device; a support fixedly connected to a second panel of the heat pump device; and a fastening structure rotatably connected to the support, the fastening structure including a locking cover, one end of the locking cover having a fastening portion, the locking cover being configured to move relative to the support and engage the fastening portion with the locking hook.

[0006] The locking assembly according to the embodiments of the present utility model has at least the following beneficial effects:

[0007] By setting a locking hook and a support on the first and second panels of the heat pump equipment respectively, the fastening structure is rotatably connected to the support. The fastening structure includes a locking cover, one end of which is provided with a buckle. The locking cover is configured to move relative to the support and engage the buckle and the locking hook, thereby realizing quick assembly and disassembly between the front and rear panels of the heat pump equipment.

[0008] According to some embodiments of this utility model, the fastener structure further includes a locking sleeve, a rotating shaft, and an elastic element. The locking sleeve is rotatably connected to the support along a rotation axis, and the locking sleeve has a first connecting portion extending perpendicular to the rotation axis. The rotating shaft is connected to the locking sleeve, and the rotating shaft includes a second connecting portion and a rotating shaft portion. The second connecting portion and the first connecting portion cooperate to allow the rotating shaft and the locking sleeve to move relative to each other along the extending direction of the first connecting portion. The rotating shaft portion is connected to the end of the second connecting portion away from the locking sleeve. The elastic element is sleeved on the outside of the first connecting portion or the second connecting portion. The end of the latch cover away from the latch portion is rotatably connected to the rotating shaft portion. When the latch assembly is in the state of fixing the first panel and the second panel, the rotating shaft rotates to the side away from the latch hook, and the elastic element is compressed to make the latch portion and the latch hook engage.

[0009] According to some embodiments of the present invention, the first connecting part is provided with a first limiting surface on the side away from the lock sleeve, and the second connecting part is provided with a second limiting surface on the side facing the first connecting part. When the locking assembly is in the state of fixing the first panel and the second panel, the two ends of the elastic member abut against the first limiting surface and the second limiting surface, respectively.

[0010] According to some embodiments of the present invention, the first connecting part includes a cylindrical body, and the second connecting part includes a rod and a limiting member. The rod is inserted into and installed in the cylindrical body and can reciprocate along the axial direction of the cylindrical body. The limiting member is connected to the end of the rod and is used to restrict the rod from detaching from the cylindrical body.

[0011] According to some embodiments of the present invention, the limiting member is configured as an elastic buckle, the elastic buckle includes two locking arms spaced apart and arranged in opposite directions, the locking arms being able to pass through the cylindrical body into the locking sleeve.

[0012] According to some embodiments of the present invention, the inner wall of the cylindrical body is provided with an anti-rotation protrusion, and the outer wall of the rod body has an anti-rotation surface. The anti-rotation surface cooperates with the anti-rotation protrusion to restrict the rotation of the rod body relative to the cylindrical body.

[0013] According to some embodiments of the present invention, the inner contour of the cross-section of the cylindrical body is non-circular, and the outer contour of the cross-section of the rod body matches the inner contour of the cross-section of the cylindrical body to restrict the rotation of the rod body relative to the cylindrical body.

[0014] According to some embodiments of the present invention, the elastic element is fixedly connected to the side of the rod body near the second limiting surface.

[0015] According to some embodiments of the present invention, when the locking assembly is in the state of fixing the first panel and the second panel, the axis of the rod is arranged downwardly from the locking sleeve towards the rotating shaft.

[0016] According to some embodiments of the present invention, the support has a downwardly inclined clearance surface on the side opposite to the locking hook, and the clearance surface is configured to avoid the cylindrical body when the locking assembly is in a fixed state.

[0017] According to some embodiments of the present invention, the elastic element is configured as a rubber ring or a silicone ring.

[0018] According to some embodiments of the present invention, the support is provided with an avoidance groove on the side opposite to the locking hook, and the avoidance groove is configured to avoid the movement stroke of the elastic element during the fixing of the locking assembly.

[0019] According to some embodiments of the present invention, the buckle is disposed on the inner side of the latch cover, the hook of the lock hook is located on the side away from the support, and when the latch assembly is in a fixed state, the latch cover can cover the lock hook, the support, the lock sleeve and the rotating shaft.

[0020] According to some embodiments of the present invention, the lock hook is provided with a first mounting part, which is fixedly connected to the first panel by fasteners; and / or, the support is provided with a second mounting part, which is fixedly connected to the second panel by fasteners.

[0021] According to some embodiments of the present invention, the rotating shaft extends in a direction parallel to the rotation axis, and the two ends of the rotating shaft are provided with first protrusions. The locking cover is provided with holes that respectively cooperate with the two first protrusions; and / or, the locking sleeve is provided with second protrusions on both sides of the rotation axis, and the support includes two hinge holes that are spaced apart along the rotation axis and have opposite openings, and the two second protrusions are respectively fitted into the two hinge holes.

[0022] According to some embodiments of the present invention, the latch cover is provided with a handle position, the handle position is located at one end of the latch cover away from the buckle portion, and the handle position is configured to be formed in a cavity on the end face of the latch cover away from the buckle portion; or, the handle position is configured to be a handle that is connected to the outer surface of the latch cover and protrudes outward.

[0023] According to some embodiments of the present invention, the outer surface of the latch cover is provided with an inwardly recessed pressing part, which is arranged close to the handle position.

[0024] The heat pump device according to a second aspect of the present invention includes the locking assembly described in the above embodiments.

[0025] The heat pump device according to the embodiments of this utility model has at least the following beneficial effects:

[0026] The locking assembly of the first aspect embodiment has a locking hook and a support respectively provided on the first panel and the second panel of the heat pump equipment. The fastener structure is rotatably connected to the support. The fastener structure includes a locking cover with a buckle at one end. The locking cover is configured to move relative to the support and engage the buckle and the locking hook, thereby realizing quick assembly and disassembly between the front panel and the rear panel of the heat pump equipment and improving the production and maintenance efficiency of the heat pump equipment.

[0027] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0029] Figure 1 This is a schematic diagram of the structure of a heat pump device according to an embodiment of the present invention;

[0030] Figure 2 This is a schematic diagram of the structure of a locking assembly according to an embodiment of the present invention, wherein the locking assembly is in a fixed state;

[0031] Figure 3 for Figure 2 A cross-sectional view of the latch assembly shown from one angle;

[0032] Figure 4 This is a schematic diagram of the structure of a locking assembly according to an embodiment of the present invention, wherein the locking assembly is in the open state;

[0033] Figure 5 for Figure 4 An enlarged schematic diagram of the locking assembly shown;

[0034] Figure 6 for Figure 2 An exploded view of the latch assembly shown;

[0035] Figure 7 for Figure 2 Another sectional view of the latch assembly shown, in which the latch hook, support, and latch cover are hidden;

[0036] Figure 8 for Figure 6 Enlarged schematic diagram of the central pivot shaft;

[0037] Figure 9 This is a cross-sectional view of a locking assembly according to another embodiment of the present invention, wherein the locking assembly is in a fixed state;

[0038] Figure 10 This is a schematic diagram of the structure of a locking assembly according to another embodiment of the present invention, wherein the locking assembly is in the open state;

[0039] Figure 11 for Figure 10 A cross-sectional view of the latch assembly shown;

[0040] Figure 12 This is a front view of a locking assembly according to another embodiment of the present invention, wherein the locking assembly is in a fixed state;

[0041] Figure 13 for Figure 12 Sectional view of the mid-section AA.

[0042] Icon labels:

[0043] 100 for housing; 110 for front panel; 120 for rear panel;

[0044] Locking assembly 200;

[0045] Lock hook 210; First through hole 211;

[0046] Support 220; clearance groove 221; second through hole 222; reamed hole 223; clearance surface 224;

[0047] Lock sleeve 230; first connecting part 231; first limiting surface 2311; cylindrical body 2312; anti-rotation protrusion 2313; second protrusion 232;

[0048] Rotating shaft 240; second connecting part 241; second limiting surface 2411; rod body 2412; limiting member 2413; anti-rotation surface 2414; rotating shaft part 242; elastic buckle 243; locking arm 2431; stepped part 244; first protrusion 245;

[0049] 250; 251; 252; 253; 254; 255; 256; 257; 258; 259; 250; 250; 251; 252; 253; 254; 255; 256;

[0050] Elastic element 260;

[0051] Fastener 270;

[0052] First axis O1; second axis O2; third axis O3. Detailed Implementation

[0053] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0054] In the description of this utility model, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0055] In the description of this utility model, "multiple" refers to two or more. The use of "first" and "second" is for distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features or their sequential relationship.

[0056] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0057] Reference Figure 1 As shown, a heat pump device according to one embodiment of this utility model can be used in conjunction with a gas boiler or independently. The heat pump device is used to supply hot water, for example, by connecting to a faucet or shower at the domestic water supply end to supply domestic hot water, or by connecting to underfloor heating or radiators to meet indoor heating needs. The heat pump device includes a housing 100, and structures such as a plate heat exchanger, evaporator, water pump, compressor, fan, and electrical control board located inside the housing 100. Therefore, to facilitate maintenance or wiring of the modules inside the housing 100, some panels of the housing 100 are designed to be detachable. In this embodiment, the front panel 110 is detachably connected to the rear panel 120. After the front panel 110 is removed, the modules inside the housing 100 are exposed, facilitating maintenance or wiring by operators.

[0058] In related technologies, heat pump equipment uses screws to connect the front panel 110 and the rear panel 120, which is inconvenient for installation and disassembly, especially for single-person operation. Therefore, to solve the above problems, this utility model embodiment provides a locking assembly 200 to close and fix the front panel 110 and the rear panel 120, making the housing 100 a single unit. The locking assembly 200 of this utility model embodiment is described below with reference to the accompanying drawings. This embodiment uses the connection between the front panel 110 and the rear panel 120 as an example, but is not limited to the connection between other panels of the housing 100, such as the left and right panels.

[0059] Reference Figure 2 and Figure 4 As shown, the locking assembly 200 of this embodiment is used to close and fix adjacent first panels (front panel 110 in this embodiment, hereinafter the same) and second panels (rear panel 120 in this embodiment, hereinafter the same) of a heat pump device. When the locking assembly 200 is in the fixed state, the first panel and the second panel are closed and fixed, forming a stable whole; when the locking assembly 200 is in the open state, the first panel and the second panel can be separated under the action of external force. It should be noted that the locking assembly 200 of this embodiment can also be used for the assembly and fixing of other air conditioning equipment such as air handling units.

[0060] Reference Figure 3 and Figure 4 As shown, the locking assembly 200 of this embodiment includes a locking hook 210 and a support 220. The locking hook 210 is fixedly connected to the first panel of the heat pump device. The locking hook 210 can be fixed to the front panel 110 by fasteners such as screws and rivets. The support 220 is fixedly connected to the second panel of the heat pump device. The support 220 can be fixed to the rear panel 120 by fasteners such as screws and rivets. It should be noted that the locking hook 210 and the support 220 are located between two adjacent and detachably connected panels; as an alternative embodiment, the locking hook 210 is fixedly connected to the rear panel 120, and the support 220 is fixedly connected to the front panel 110.

[0061] The locking assembly 200 in this embodiment also includes a fastener structure, which is rotatably connected to the support 220. The fastener structure includes a locking cover 250, one end of which is provided with a fastening part 251. The locking cover 250 is configured to move relative to the support 220 and engage the fastening part 251 with the locking hook 210. This enables quick assembly and disassembly between the front panel 110 and the rear panel 120 of the heat pump equipment, improving the production and maintenance efficiency of the heat pump equipment.

[0062] In order to solve the problem that the locking assembly 200 in the related technology has a complex structure and that the locking force of the locking assembly 200 needs to be repeatedly adjusted due to the assembly position error between the front panel 110 and the rear panel 120 during installation, this embodiment provides a locking assembly 200 that can obtain sufficient locking force without adjustment and reduces the assembly difficulty.

[0063] Reference Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, in the locking assembly 200 of this embodiment, the fastener structure further includes a locking sleeve 230 and a rotating shaft 240. The locking sleeve 230 is rotatably connected to the support 220, and the locking sleeve 230 rotates about a first axis O1. The locking sleeve 230 is provided with a first connecting portion 231, which extends along a second axis O2, and the second axis O2 is perpendicular to the first axis O1. The rotating shaft 240 is connected to the locking sleeve 230 and includes a second connecting portion 241 and a rotating shaft portion 242 connected to each other. The second connecting portion 241 and the first connecting portion 231 cooperate to allow the rotating shaft 240 and the locking sleeve 230 to move relative to each other along the extending direction of the first connecting portion 231. The rotating shaft portion 242 is connected to the end of the second connecting portion 241 that is away from the first connecting portion 231, and the rotating shaft portion 242 extends along a third axis O3, which is parallel to the first axis O1. One end of the latch cover 250 is rotatably connected to the pivot 242, and the other end of the latch cover 250 is provided with a buckle 251 that cooperates with the lock hook 210. The first connecting part 231 has a first limiting surface 2311 on the side away from the lock sleeve 230, and the second connecting part 241 has a second limiting surface 2411 on the side facing the first connecting part 231. The first limiting surface 2311 and the second limiting surface 2411 are respectively located on opposite sides of the first connecting part 231 and the second connecting part 241.

[0064] Reference Figure 3 As shown, when the locking assembly 200 of this embodiment is closed, the buckle 251 at the front end of the locking cover 250 hooks with the locking hook 210. Then, the locking cover 250 is pressed towards the first panel and the second panel. After the locking cover 250 is pressed flat, the first panel and the second panel can be pulled tight to achieve the closure and fixation of the first panel and the second panel.

[0065] Reference Figure 3 and Figure 7As shown, the locking assembly 200 of this embodiment is further provided with an elastic element 260. The elastic element 260 is sleeved on the outside of the first connecting part 231 or the outside of the second connecting part 241, and is located between the first limiting surface 2311 and the second limiting surface 2411. When the locking assembly 200 is in the state of fixing the first panel and the second panel, the rotating shaft 240 rotates to the side away from the locking hook 210, and the two ends of the elastic element 260 abut against the first limiting surface 2311 and the second limiting surface 2411 respectively, and the buckle 251 and the locking hook 210 are engaged. Since the elastic element 260 is compressible, during the closing process of the locking assembly 200, the rotating shaft 240 and the locking sleeve 230 adjust their assembly state through the compression of the elastic element 260, so that the locking assembly 200 obtains sufficient locking force, and there is sufficient closing force between the buckle 251 and the locking hook 210, thereby realizing the closure of the first panel and the second panel. Compared to the locking assembly 200 in related technologies, the locking assembly 200 in this embodiment can obtain sufficient locking force without repeated adjustments, which reduces the installation difficulty of the locking assembly 200 and improves the assembly efficiency between the two panels of the heat pump equipment.

[0066] Reference Figure 5 , Figure 6 and Figure 7 As shown, in this embodiment, the first connecting part 231 includes a cylindrical body 2312, and the second connecting part 241 includes a rod 2412 and a limiting member 2413 connected to each other. The rod 2412 is inserted into and installed inside the cylindrical body 2312, and the rod 2412 can reciprocate along the axial direction of the cylindrical body 2312. The rod 2412 and the cylindrical body 2312 slide relative to each other, thereby realizing the relative movement of the locking sleeve 230 and the rotating shaft 240. That is, a telescopic structure is formed between the locking sleeve 230 and the rotating shaft 240 to adjust the distance between the first limiting surface 2311 and the second limiting surface 2411. At this time, the elastic member 260 is sleeved on the outside of the rod 2412. The limiting member 2413 is connected to the end of the rod 2412, and the limiting member 2413 is used to prevent the rod 2412 from disengaging from the cylindrical body 2312 during reciprocating movement. Understandably, when the locking assembly 200 is opened, in order to facilitate the disengagement of the locking cover 250 from the locking hook 210, the rod 2412 needs to be pulled as far outward as possible from the cylindrical body 2312. If the operator applies excessive force at this time, the rod 2412 may disengage from the cylindrical body 2312. To overcome the above-mentioned defects, a limiting member 2413 is provided at the end of the rod 2412 to limit the outward movement of the rod 2412, thereby preventing the locking sleeve 230 and the rotating shaft 240 from disengaging during use of the locking assembly 200.

[0067] Reference Figure 7As shown, in this embodiment, the limiting member 2413 is configured as an elastic buckle 243. The elastic buckle 243 includes two spaced-apart and back-to-back locking arms 2431. The locking arms 2431 can pass through the cylindrical body 2312 into the locking sleeve 230. After elastic deformation, the locking arms 2431 pass into the locking sleeve 230, facilitating the operator to assemble the rod 2412 into the cylindrical body 2312, thereby achieving rapid assembly of the locking sleeve 230 and the rotating shaft 240. The locking arms 2431 are used to limit the stroke of the rod 2412 to move outward from the cylindrical body 2312. When the rod 2412 moves outward to a certain stroke, the hook on the outside of the locking arms 2431 engages with the cylindrical body 2312 to prevent the rod 2412 from dislodging from the cylindrical body 2312, achieving the effect of preventing dislodging. It is understandable that the two locking arms 2431 are configured as a group, and the elastic buckle 243 may include multiple groups of locking arms 2431. The hooks on the outside of the multiple groups of locking arms 2431 are respectively engaged with the cylindrical body 2312 to limit the rod body 2412 from falling out of the cylindrical body 2312, thus improving the anti-falling effect.

[0068] During assembly, after the pivot rod 240 is engaged with the locking cover 250, the elastic element 260 is fitted into the second connecting portion 241 of the pivot rod 240, the locking sleeve 230 is engaged into the support 220, and finally the second connecting portion 241 of the pivot rod 240 is engaged into the first connecting portion 231 of the locking sleeve 230, thus assembling the movable part of the locking assembly 200. During the assembly of the movable part of the locking assembly 200, each structure can quickly achieve positioning and limitation, improving the assembly efficiency of the locking assembly 200.

[0069] Reference Figure 8 As shown, a step portion 244 is provided at the connection between the second connecting portion 241 and the rotating shaft portion 242. A second limiting surface 2411 is provided on the side of the step portion 244 facing the cylindrical body 2312. The limiting member 2413 is used to limit the stroke of the rod 2412 moving inward to the cylindrical body 2312.

[0070] Reference Figure 5 As shown, in order to achieve effective compression of the elastic element 260 during the closing and fixing process of the locking cover 250, the elastic element 260 is configured to be fixedly connected to the side of the rod body 2412 near the second limiting surface 2411. The elastic element 260 can be fixed to the rod body 2412 by means of interference fit or bonding, and one end face of the elastic element 260 abuts against the second limiting surface 2411, preventing the elastic element 260 from being stuck during the reciprocating movement of the rod body 2412 within the cylindrical body 2312, effectively preventing the locking assembly 200 from jamming.

[0071] Reference Figure 5 and Figure 6As shown, in some embodiments of this invention, the elastic element 260 is configured as a rubber ring or a silicone ring. Rubber rings and silicone rings have good elasticity and are commonly used standard parts, offering advantages such as low cost and high durability. Furthermore, rubber rings and silicone rings are easily connected to the rod body 2412 via an interference fit, and they can achieve axial compression.

[0072] Reference Figure 6 As shown, it can be understood that the support 220 has a relief groove 221 on the side opposite to the locking hook 210, and the relief groove 221 is recessed towards the panel. The relief groove 221 is configured to avoid the movement stroke of the elastic element 260 during the fixing of the locking assembly 200, and can also guide the assembly of the pivot rod 240 and the elastic element 260 when the locking assembly 200 is closed and fixed. Therefore, the elastic element 260 is not easy to jam with the support 220 during the movement of the rod 2412; moreover, the elastic element 260 is not easy to twist and deform. The end faces of the two ends of the elastic element 260 are respectively subjected to the pressing force of the first limiting surface 2311 and the second limiting surface 2411, ensuring that the elastic element 260 can provide good compression performance, so that the locking assembly 200 can obtain sufficient locking force, and there is sufficient closing force between the buckle 251 and the locking hook 210, thereby realizing the closure of the first panel and the second panel.

[0073] As an alternative implementation, in another embodiment of the locking assembly 200 of the present invention, the structures of the first connecting part 231 and the second connecting part 241 can be interchanged. That is, the first connecting part 231 includes a rod body 2412 and a limiting member 2413, and the second connecting part 241 includes a cylindrical body 2312. The rod body 2412 is inserted and installed inside the cylindrical body 2312. The rod body 2412 can reciprocate along the axial direction of the cylindrical body 2312, which can also realize the relative movement of the locking sleeve 230 and the rotating shaft 240.

[0074] Reference Figure 7 and Figure 8 As shown, in one embodiment of the present invention, the locking assembly 200 has an anti-rotation protrusion 2313 on the inner wall of the cylindrical body 2312, which protrudes relative to the inner wall of the cylindrical body 2312 towards the axis of the cylindrical body 2312. The outer wall of the rod body 2412 has an anti-rotation surface 2414, which matches the anti-rotation protrusion 2313 to restrict the rod body 2412 from rotating relative to the cylindrical body 2312. Therefore, under the limiting and guiding effect of the above structure, the locking cover 250 more easily engages the latch 251 with the locking hook 210, and the locking cover 250 will not wobble up or down when the operator presses it to close and fix it, making the operation smoother. Furthermore, the moving part of the locking assembly 200 is more stable, improving the durability of the locking assembly 200.

[0075] Reference Figure 7 and Figure 8 As shown, in another embodiment of the locking assembly 200 of this utility model, the inner contour of the cross-section of the cylindrical body 2312 is non-circular, such as quadrilateral, hexagonal, elliptical, etc., and the outer contour of the cross-section of the rod 2412 is also non-circular, and matches the inner contour of the cross-section of the cylindrical body 2312. Therefore, after the rod 2412 is inserted into the cylindrical body 2312, it can restrict the rotation of the rod 2412 relative to the cylindrical body 2312. Under the limiting guidance of the above structure, it is also beneficial for the latch 251 of the locking cover 250 to be fastened to the locking hook 210, and the locking cover 250 will not wobble up and down when the operator presses the locking cover 250 to close and fix it, making the operation smoother. Moreover, the moving part structure of the locking assembly 200 is more stable, improving the durability of the locking assembly 200.

[0076] Reference Figure 2 and Figure 3 As shown in the figure, in order to improve the flatness and neatness of the locking assembly 200 in the fixed state, and also to reduce the exposure of parts, the buckle 251 is disposed on the inner side of the locking cover 250, and the hook of the locking hook 210 is located on the side away from the support 220. When the locking assembly 200 is in the fixed state, the locking cover 250 can cover the locking hook 210, the support 220, the locking sleeve 230, and the rotating shaft 240. Therefore, when the locking assembly 200 is in the fixed state, most of the parts can be covered by the locking cover 250, making the surface of the heat pump equipment panel flatter.

[0077] Reference Figure 2 and Figure 3 As shown, to facilitate the operator in opening the latch assembly 200, the latch cover 250 is provided with a handle position 252, which is located at the end of the latch cover 250 away from the latch portion 251. The operator will press against the handle position 252 and lift it away from the panel, thereby overcoming the locking force of the latch assembly 200 and opening the latch assembly 200. In this embodiment, the end face of the latch cover 250 forms an inwardly inclined surface 253 towards the panel, the inclined surface 253 and the panel form an angle with each other, and a cavity is formed between them, which is configured as the handle position 252.

[0078] Reference Figure 4 and Figure 5 As shown, it can be understood that the lock hook 210 in this embodiment is provided with a first mounting portion, which is configured as a plurality of first through holes 211. Each first through hole 211 is fitted with a fastener 270 such as a screw, and the lock hook 210 is fixedly connected to the first panel by the fastener 270. In order to avoid interfering with the snap-fit ​​between the lock hook 210 and the latch cover 250, the first through holes 211 are arranged on the side of the lock hook 210 near the support 220.

[0079] In this embodiment, the support 220 is provided with a second mounting portion, which is configured as a plurality of second through holes 222. Each second through hole 222 is fitted with a fastener 270 such as a screw, and the support 220 is fixedly connected to the second panel by the fastener 270. In order to avoid interfering with the movement of the rotating shaft 240 and the locking sleeve 230, and to ensure the stability of the connection of the support 220, a portion of the second through holes 222 are arranged on the side of the support 220 near the locking hook 210, and the other two second through holes 222 are arranged on the side of the support 220 away from the locking hook 210, and the two second through holes 222 are respectively located on both sides of the relief groove 221.

[0080] Reference Figure 6 and Figure 7 As shown, it can be understood that the lock sleeve 230 has second protrusions 232 on both sides along the first axis O1, and the support 220 includes two hinge holes 223 spaced apart along the first axis O1. The openings of the two hinge holes 223 are arranged opposite to each other, and the two second protrusions 232 are respectively fitted into the corresponding two hinge holes 223. The second protrusions 232 can be installed into the hinge holes 223 from bottom to top (e.g., Figure 6 (as shown in the embodiment); as an alternative embodiment, the second protrusion 232 can also be installed into the hinge hole 223 from top to bottom (e.g. Figure 10 (as shown in the embodiment), thereby achieving stable rotation of the locking sleeve 230 relative to the support 220.

[0081] Reference Figure 8 As shown, it can be understood that the two ends of the rotating shaft 242 are provided with first protrusions 245, and the two sides of the locking cover 250 are respectively provided with holes 254. The two first protrusions 245 are respectively inserted into the two holes 254, and the locking cover 250 can rotate through the cooperation of the holes 254 and the first protrusions 245.

[0082] Reference Figure 9 , Figure 10 , Figure 11 , Figure 12 and Figure 13As shown, another embodiment of the locking assembly 200 of this utility model is similar to the locking assembly 200 of the previous embodiment, including a locking hook 210, a support 220, a locking sleeve 230, a rotating shaft 240, and a locking cover 250. The locking sleeve 230 is rotatably connected to the support 220. The locking sleeve 230 is provided with a first connecting portion 231, which extends along the second axis O2. The rotating shaft 240 is connected to the locking sleeve 230 and includes a second connecting portion 241 and a rotating shaft portion 242 connected to each other. The second connecting portion 241 and the first connecting portion 231 cooperate to allow the rotating shaft 240 and the locking sleeve 230 to move relative to each other along the extending direction of the first connecting portion 231. The rotating shaft portion 242 is connected to the end of the second connecting portion 241 that is away from the first connecting portion 231. One end of the latch cover 250 is rotatably connected to the pivot 242, and the other end of the latch cover 250 is provided with a buckle 251 that cooperates with the lock hook 210. The first connecting part 231 has a first limiting surface 2311 on the side away from the lock sleeve 230, and the second connecting part 241 has a second limiting surface 2411 on the side facing the first connecting part 231. The first limiting surface 2311 and the second limiting surface 2411 are respectively located on opposite sides of the first connecting part 231 and the second connecting part 241.

[0083] The fastener structure of this embodiment also includes an elastic element 260, which is sleeved on the outside of the first connecting part 231 or the outside of the second connecting part 241, and is located between the first limiting surface 2311 and the second limiting surface 2411. When the locking assembly 200 is in the state of fixing the first panel and the second panel, the rotating shaft 240 rotates to the side away from the locking hook 210, and the two ends of the elastic element 260 abut against the first limiting surface 2311 and the second limiting surface 2411 respectively, and the buckle 251 and the locking hook 210 are engaged. Since the elastic element 260 is compressible, during the closing process of the locking assembly 200, the rotating shaft 240 and the locking sleeve 230 adjust their assembly state through the compression of the elastic element 260, so that the locking assembly 200 obtains sufficient locking force, and there is sufficient closing force between the buckle 251 and the locking hook 210, thereby realizing the closure of the first panel and the second panel. Compared to the locking assembly 200 in related technologies, the locking assembly 200 in this embodiment can obtain sufficient locking force without repeated adjustments, which reduces the installation difficulty of the locking assembly 200 and improves the assembly efficiency between the two panels of the heat pump equipment.

[0084] In this embodiment, the first connecting part 231 includes a cylindrical body 2312, and the second connecting part 241 includes a rod 2412 and a limiting member 2413 connected to each other. The rod 2412 is inserted into and installed inside the cylindrical body 2312, and the rod 2412 can reciprocate along the axial direction of the cylindrical body 2312. The rod 2412 and the cylindrical body 2312 slide relative to each other, thereby realizing the relative movement of the locking sleeve 230 and the rotating shaft 240. That is, a telescopic structure is formed between the locking sleeve 230 and the rotating shaft 240 to adjust the distance between the first limiting surface 2311 and the second limiting surface 2411. At this time, the elastic member 260 is sleeved on the outside of the rod 2412. The limiting member 2413 is connected to the end of the rod 2412, and the limiting member 2413 is used to prevent the rod 2412 from disengaging from the cylindrical body 2312 during reciprocating movement. Understandably, when the locking assembly 200 is opened, in order to facilitate the disengagement of the locking cover 250 from the locking hook 210, the rod 2412 needs to be pulled as far outward as possible from the cylindrical body 2312. If the operator applies excessive force at this time, the rod 2412 may disengage from the cylindrical body 2312. To overcome the above-mentioned defects, a limiting member 2413 is provided at the end of the rod 2412 to limit the outward movement of the rod 2412, thereby preventing the locking sleeve 230 and the rotating shaft 240 from disengaging during use of the locking assembly 200.

[0085] Reference Figure 9 As shown, when the locking assembly 200 of this embodiment is in the state of fixing the first panel and the second panel, the axis of the rod 2412 (coinciding with the second axis O2) is arranged downwards from the locking sleeve 230 towards the rotating shaft 242, so that the position of the rotating shaft 242 is lower than the position of the locking sleeve 230 in the vertical direction. With this design, the rotation angle of the cylindrical body 2312 is larger during the process of fixing the first panel and the second panel, and it rotates to a position below the horizontal plane parallel to the first and second panels, making it less likely for the locking assembly 200 to overcome the internal locking force and unlock, thus further improving the fastening performance of the locking assembly 200 on the first and second panels.

[0086] Reference Figure 9 As shown, it can be understood that the support 220 has a downwardly inclined clearance surface 224 on the side opposite to the locking hook 210. The clearance surface 224 is a plane or a curved surface. The clearance surface 224 is configured to avoid the cylindrical body 2312 when the locking assembly 200 is in a fixed state. Therefore, when the cylindrical body 2312 continues to rotate downward, the support 220 can provide sufficient clearance space without interference, thus improving the ease of operation of the locking assembly 200.

[0087] Reference Figure 9 and Figure 11As shown, to facilitate the operator in opening the latch assembly 200, the latch cover 250 is provided with a handle position 252. The handle position 252 is configured as a handle 255 connected to the outer surface of the latch cover 250. The handle 255 is a structure that extends along the upper surface of the latch cover 250 in a direction away from the latch hook 210. The handle 255 protrudes outward relative to the latch cover 250, allowing the operator to open the latch assembly 200 using the handle 255. It is understood that the handle 255 can be integrally manufactured with the latch cover 250, for example, through integral injection molding.

[0088] Reference Figure 9 and Figure 10 As shown, it can be understood that the outer surface of the latch cover 250 is provided with an inwardly recessed pressing part 256. The pressing part 255 is arranged near the handle position 252. The pressing part 256 allows the operator to press the latch assembly 200 inward, so that the position of the pivot part 242 is lower than the position of the lock sleeve 230 in the vertical direction, thereby locking it internally and making it difficult for the latch assembly 200 to unlock. (Refer to...) Figure 1 As shown, a heat pump device according to an embodiment of the present invention includes the locking assembly 200 of the above embodiment. The heat pump device includes a front panel 110 and a rear panel 120, which are detachably connected. Both sides of the front panel 110 are respectively connected to the rear panel 120 via the locking assemblies 200. Along the vertical direction of the heat pump device, multiple locking assemblies 200 can be arranged on each side of the front panel 110 to meet the assembly requirements of front panels 110 of different sizes or weights.

[0089] The heat pump device of this utility model embodiment adopts the locking assembly 200 of the first aspect embodiment. The locking assembly 200 is provided with a locking hook 210 and a support 220 respectively fixed to a first panel and a second panel, as well as a locking sleeve 230 rotatably connected to the support 220 and a rotating shaft 240 connected to the locking sleeve 230. The locking sleeve 230 is provided with a first connecting part 231, and the rotating shaft 240 includes a second connecting part 241 and a rotating shaft part 242. The first connecting part 231 and the second connecting part 241 cooperate to allow the rotating shaft 240 and the locking sleeve 231 to move relative to each other along the extension direction of the first connecting part 231. The opposite sides of the first connecting part 231 and the second connecting part 241 are... A first limiting surface 2311 and a second limiting surface 2411 are provided. An elastic element 260 is sleeved on the outer side of the first connecting part 231 or the second connecting part 241. The elastic element 260 is located between the first limiting surface 2311 and the second limiting surface 2411. A rotating shaft part 242 is rotatably connected to one end of the latch cover 250. The other end of the latch cover 250 is provided with a buckle part 251. When the latch assembly 200 is in the state of fixing the front panel 110 and the rear panel 120, the rotating shaft 240 rotates to the side away from the lock hook 210, and the two ends of the elastic element 260 abut against the first limiting surface 2311 and the second limiting surface 2411 respectively. The buckle part 251 and the lock hook 210 are fastened together. Because the elastic element 260 is compressible, the locking assembly 200 obtains sufficient locking force through the compression of the elastic element 260 during the closing process, thereby achieving the closure of the first panel and the second panel. This reduces the assembly difficulty of the locking assembly 200 and improves the production efficiency of the heat pump equipment.

[0090] The heat pump device of this utility model adopts all the technical solutions of the locking assembly 200 of the above embodiments, and therefore has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be repeated here.

[0091] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A lock catch assembly for use in a heat pump apparatus, characterised in that, include: A locking hook is fixedly connected to the first panel of the heat pump device; The support is fixedly connected to the second panel of the heat pump equipment; A fastener structure is rotatably connected to the support. The fastener structure includes a locking cover, one end of which is provided with a fastening part. The locking cover is configured to move relative to the support and engage the fastening part with the locking hook.

2. The locking assembly according to claim 1, characterized in that: The fastener structure further includes a locking sleeve, a rotating shaft, and an elastic element. The locking sleeve is rotatably connected to the support along a rotation axis and has a first connecting portion extending perpendicular to the rotation axis. The rotating shaft is connected to the locking sleeve and includes a second connecting portion and a rotating shaft portion. The second connecting portion and the first connecting portion cooperate to allow the rotating shaft and the locking sleeve to move relative to each other along the extension direction of the first connecting portion. The rotating shaft portion is connected to the end of the second connecting portion away from the locking sleeve. The elastic element is sleeved on the outside of the first connecting portion or the second connecting portion. The end of the latch cover away from the latch portion is rotatably connected to the rotating shaft portion. When the latch assembly is in the state of fixing the first panel and the second panel, the rotating shaft rotates to the side away from the latch hook, and the elastic element is compressed to make the latch portion and the latch hook engage.

3. The hasp assembly of claim 2, wherein: The first connecting part has a first limiting surface on the side away from the lock sleeve, and the second connecting part has a second limiting surface on the side facing the first connecting part. When the locking assembly is in the state of fixing the first panel and the second panel, the two ends of the elastic member abut against the first limiting surface and the second limiting surface, respectively.

4. The hasp assembly of claim 3, wherein: The first connecting part includes a cylindrical body, and the second connecting part includes a rod and a limiting member. The rod is inserted into and installed in the cylindrical body and can reciprocate along the axial direction of the cylindrical body. The limiting member is connected to the end of the rod and is used to restrict the rod from detaching from the cylindrical body.

5. The hasp assembly of claim 4, wherein: The limiting member is configured as an elastic buckle, which includes two spaced-apart and back-to-back locking arms that can pass through the cylindrical body into the locking sleeve.

6. The hasp assembly of claim 4, wherein: The inner wall of the cylindrical body is provided with an anti-rotation protrusion, and the outer wall of the rod body has an anti-rotation surface. The anti-rotation surface cooperates with the anti-rotation protrusion to restrict the rotation of the rod body relative to the cylindrical body.

7. The hasp assembly of claim 4, wherein: The inner contour of the cross-section of the cylindrical body is non-circular, and the outer contour of the cross-section of the rod body matches the inner contour of the cross-section of the cylindrical body to restrict the rotation of the rod body relative to the cylindrical body.

8. The hasp assembly of claim 4, wherein: The elastic element is fixedly connected to the side of the rod body near the second limiting surface.

9. The hasp assembly of claim 4, wherein: When the locking assembly is in the state of fixing the first panel and the second panel, the axis of the rod is arranged downward from the locking sleeve towards the rotating shaft.

10. The hasp assembly of claim 9, wherein: The support has a downwardly angled clearance surface on the side opposite to the locking hook, the clearance surface being configured to avoid the cylindrical body when the locking assembly is in a fixed state.

11. The hasp assembly of claim 3, wherein: The elastic element is configured as a rubber ring or a silicone ring.

12. The hasp assembly of claim 11, wherein: The support is provided with a relief groove on the side opposite to the locking hook. The relief groove is configured to avoid the movement stroke of the elastic element during the fixing of the locking assembly.

13. The hasp assembly of claim 2, wherein: The buckle is located on the inner side of the latch cover, and the hook of the latch is located on the side away from the support. When the latch assembly is in a fixed state, the latch cover can cover the latch hook, the support, the lock sleeve and the rotating shaft.

14. The hasp assembly of claim 2, wherein: The rotating shaft extends in a direction parallel to the axis of rotation, and each end of the rotating shaft has a first protrusion. The locking cover has holes that respectively mate with the two first protrusions; and / or, The lock sleeve is provided with a second protrusion on each side along the rotation axis, and the support includes two hinge holes spaced apart along the rotation axis and with their openings facing each other. The two second protrusions are respectively fitted into the two hinge holes.

15. The hasp assembly of claim 1, wherein: The locking hook is provided with a first mounting part, which is fixedly connected to the first panel by fasteners; and / or The support is provided with a second mounting part, which is fixedly connected to the second panel by fasteners.

16. The hasp assembly of claim 1, wherein: The latch cover has a handle position located at the end of the latch cover away from the buckle portion. The handle position is configured as a recess formed in the end face of the latch cover away from the buckle portion; or, The handle is configured as a protruding handle attached to the outer surface of the latch cover.

17. The hasp assembly of claim 16, wherein: The outer surface of the latch cover is provided with an inwardly recessed pressing part, which is arranged close to the handle position.

18. Heat pump apparatus, characterised in that: Includes the locking assembly as described in any one of claims 1 to 17.

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