A detachable injection-molded air intake grille

Abstract

The utility model belongs to refrigeration and air conditioning air intake processing technical field, concretely is a kind of detachable injection moulding air inlet grille. Installation frame is provided with installation groove, air inlet grille board is located inside installation groove, and it is compatible with installation groove, limiting frame is equipped with two, respectively fixed in the inner wall of installation groove both sides, limiting groove is located in the inside of limiting frame, sliding block is located in each limiting groove, and it is slidably arranged along the extension direction of limiting groove, one end of buffer damping rod is connected to the outer wall of the one side of sliding block close to air inlet grille board, the other end is fixed to the inner wall of limiting groove, positive pole magnetic block is located in the outer wall of the one side of sliding block away from buffer damping rod. The utility model when air inlet grille board is in installation state, sliding block is locked in the bottom of limiting groove under the strong magnetic adsorption of positive pole magnetic block and negative pole magnetic block, and L type connecting rod then stably holds air inlet grille board in installation groove, ensure that it does not come loose due to vibration or airflow impact in the process of air conditioning operation.

Description

Technical Field

[0001] This utility model belongs to the field of air intake treatment technology for refrigeration and air conditioning, specifically a detachable injection-molded air intake grille. Background Technology

[0002] In current refrigeration and air conditioning equipment, the air inlet grille is a key component, and its performance directly affects the air conditioner's operating efficiency, noise level, and ease of maintenance. However, existing air inlet grilles for refrigeration and air conditioning systems generally suffer from the following technical problems: First, traditional air intake grilles are mostly fixed with clips or screws, requiring users to use tools to disassemble them when cleaning or replacing the filter, a cumbersome and time-consuming process. Furthermore, frequent disassembly and reassembly can easily damage the clips or strip the threads, further increasing maintenance costs.

[0003] Secondly, traditional air intake grilles are typically fixed to the air conditioner casing using rigid connections. During long-term operation, factors such as fan vibration, transportation impacts, and changes in ambient temperature and humidity can easily lead to structural loosening or even cracking. For plastic grilles, their fatigue resistance is poor, and they are prone to deformation after prolonged stress, resulting in increased assembly gaps and abnormal noise. Furthermore, many air intake grilles lack effective buffering mechanisms against external disturbances (such as vibration and impact). In the event of severe vibration or accidental collision, components are easily detached or damaged. Moreover, as the air conditioner operates for longer periods, wear between components intensifies, and the original fasteners may gradually lose their effectiveness, leading to a decrease in the overall structural stability.

[0004] To address this issue, a detachable injection-molded air intake grille is provided. Utility Model Content

[0005] In view of the above situation and to overcome the defects of the prior art, the present invention provides a detachable injection-molded air inlet grille to at least partially solve the above technical problems.

[0006] The technical solution adopted by this utility model is as follows: This utility model proposes a detachable injection-molded air inlet grille, comprising: The mounting frame has a mounting slot inside; An air intake grille is disposed inside the mounting groove and is adapted to the mounting groove; Two limiting frames are provided, which are respectively fixed to the inner walls on both sides of the mounting groove, and the limiting frames have limiting grooves inside; A sliding block is disposed in each of the limiting grooves and is slidably disposed along the extending direction of the limiting groove; The buffer damping rod is connected at one end to the outer wall of the sliding block near the air inlet grille, and at the other end to the inner wall of the limiting groove. A positive magnetic block is disposed on the outer wall of the sliding block on the side away from the buffer damping rod; The negative magnetic block is fixed to the inner wall of the bottom surface of the limiting groove and magnetically attracted to the positive magnetic block. The L-shaped connecting rod is connected at one end to the outer surface of the sliding block and at the other end to the bottom surface of the air intake grille.

[0007] As a further embodiment of this utility model: a filter screen is provided below the limiting frame, and the filter screen is horizontally arranged and covers the lower part of the air inlet area of ​​the mounting frame.

[0008] As a further improvement of this utility model: the outer wall of the mounting frame away from the air inlet grille is provided with a plurality of air outlet holes, which are arranged in an array and penetrate the side wall of the mounting frame.

[0009] As a further improvement of this utility model: the surface of the air inlet grille is provided with a plurality of air inlet holes, the air inlet holes are inclined in the vertical direction, and a guide gap is formed between adjacent air inlet holes.

[0010] As a further improvement of this utility model: two fixing frames are provided on each side of the outer wall of the mounting frame, and a total of four fixing frames are symmetrically distributed on the left and right sides of the mounting frame, and each fixing frame has a fixing groove inside.

[0011] As a further improvement of this utility model: each of the fixed grooves is provided with two sets of limiting blocks, the two sets of limiting blocks are arranged vertically at intervals, and the two sets of limiting blocks are connected by a buffer rod, the two ends of the buffer rod being fixedly connected to the upper and lower sets of limiting blocks respectively.

[0012] As a further improvement of this utility model: each set of limiting blocks has a tension damping rod connected to the outer wall on the side away from the buffer rod, and the other ends of the two tension damping rods are respectively fixed to the upper and lower inner walls of the fixing groove.

[0013] As a further improvement of this utility model: the upper and lower sets of limiting blocks are connected together by a concave fixing plate. The concave fixing plate has a U-shaped structure, with its opening facing the outside of the mounting frame, and its two side wings are respectively fixedly connected to the upper and lower sets of limiting blocks.

[0014] As a further improvement of this utility model: two concave fixing plates are provided on the outer wall of one side of the mounting frame, corresponding to the fixing frames on the left and right sides respectively, and at least one mounting hole is provided on the bottom surface of each concave fixing plate.

[0015] Implementing the embodiments of this utility model will have the following beneficial effects: This embodiment utilizes a three-in-one linkage mechanism of magnetic attraction, damping, and L-shaped connecting rod. When the air intake grille is in the installation state, the sliding block is locked at the bottom of the limiting groove under the strong magnetic attraction of the positive and negative magnetic blocks. The L-shaped connecting rod stably supports the air intake grille within the installation groove, ensuring that it will not loosen due to vibration or airflow impact during air conditioning operation. When cleaning or replacement is required, the user only needs to apply a moderate downward pulling force to overcome the magnetic attraction and allow the sliding block to slide along the limiting groove. The damping rod simultaneously compresses and absorbs the impact energy, and the L-shaped connecting rod smoothly removes the air intake grille from the installation position.

[0016] In this embodiment, the inclined air inlet holes on the surface of the air inlet grille and the guide gaps between adjacent holes together form a low-resistance, low-noise airflow inlet. This not only effectively conceals the internal structure and enhances aesthetics, but also guides the airflow to smoothly change direction, reducing turbulence and vortices caused by frontal impact. After the airflow passes through the air inlet holes, it immediately passes through the filter screen laid horizontally below the limiting frame. The screen covers the entire lower part of the air inlet area, using the inertia of particles to achieve efficient interception, preventing dust, hair, and other pollutants from entering the evaporator area, and ensuring long-term stable heat exchange efficiency.

[0017] In this embodiment, four sets of fixing units (including fixing frames, limiting blocks, buffer rods, tension damping rods, and concave fixing plates) symmetrically arranged on the outside of the mounting frame constitute an elastic connection structure. The structure provides lateral stiffness through the buffer rods between the upper and lower limiting blocks, absorbs axial vibration and thermal expansion and contraction deformation through the tension damping rods, and integrates the upper and lower limiting blocks into a unified force-bearing frame by the U-shaped concave fixing plate, and is then firmly connected to the air conditioner housing through the mounting holes on the bottom surface.

[0018] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is an exploded view of the detachable injection-molded air inlet grille proposed in an embodiment of the present utility model; Figure 2This is a schematic diagram of the detachable injection-molded air inlet grille proposed in an embodiment of the present invention; Figure 3 This is a side view of the detachable injection-molded air inlet grille proposed in an embodiment of the present utility model; Figure 4 This is a front view of the detachable injection-molded air inlet grille proposed in an embodiment of the present invention; Figure 5 This is a rear view of the detachable injection-molded air inlet grille proposed in an embodiment of the present utility model; Figure 6 for Figure 3 A cross-sectional view along the cutting line AA; Figure 7 for Figure 4 A cross-sectional view along the cutting line BB.

[0021] In the diagram: 1. Mounting frame; 2. Mounting groove; 3. Filter screen; 4. Limiting frame; 5. Limiting groove; 6. Sliding block; 7. Buffer damping rod; 8. Positive magnetic block; 9. Negative magnetic block; 10. L-shaped connecting rod; 11. Air inlet grille; 12. Air inlet hole; 13. Air outlet hole; 14. Fixing frame; 15. Fixing groove; 16. Limiting block; 17. Buffer rod; 18. Tension damping rod; 19. Concave fixing plate; 20. Mounting hole.

[0022] The accompanying drawings are provided to further understand the present invention and form 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 thereof. Detailed Implementation

[0023] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0024] It is important to note that the terms "first," "second," etc., are used only to distinguish between descriptive and positional descriptions, and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features specified with "first," etc., may explicitly or implicitly include one or more of that feature; similarly, when the quantity of certain features is not limited by words such as "two" or "three," it should be noted that such features also explicitly or implicitly include one or more features. In the embodiments of this utility model, unless otherwise explicitly specified and limited, terms such as "installation," "connection," and "fixation" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral molding; they can refer to a mechanical connection, a direct connection, a welding connection, or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the accompanying drawings and specific circumstances.

[0025] In the description of the embodiments of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship 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 the embodiments of this utility model.

[0026] like Figures 1 to 7 As shown, a detachable injection-molded air intake grille includes: Mounting frame 1, with mounting groove 2 inside; air inlet grille 11, located inside mounting groove 2 and adapted to mounting groove 2; Two limiting frames 4 are provided, which are fixed to the inner walls on both sides of the mounting groove 2 respectively. Limiting grooves 5 are opened inside the limiting frames 4. Sliding blocks 6 are provided in each limiting groove 5 and are slidably arranged along the extension direction of the limiting groove 5. Buffer damping rod 7 is connected at one end to the outer wall of the sliding block 6 near the air inlet grille 11, and the other end is fixed to the inner wall of the limiting groove 5. Positive magnetic block 8 is located on the outer wall of the sliding block 6 on the side away from the buffer damping rod 7; negative magnetic block 9 is fixed to the inner wall of the bottom surface of the limiting groove 5 and magnetically attracted to positive magnetic block 8. The L-shaped connecting rod 10 is connected at one end to the outer surface of the sliding block 6 and at the other end to the bottom surface of the air intake grille 11.

[0027] In a specific application of this utility model embodiment, when the air inlet grille 11 is installed into the mounting groove 2 of the mounting frame 1, the sliding block 6 inside the limiting frame 4 located on both sides of the inner wall of the mounting groove 2 is firmly attracted to the bottom position of the limiting groove 5 under the magnetic attraction between the positive magnetic block 8 and the negative magnetic block 9. At this time, the buffer damping rod 7 is in a naturally extended or slightly compressed state, while the L-shaped connecting rod 10, with its vertical section connecting the sliding block 6 and its horizontal section supporting the bottom surface of the air inlet grille 11, stably holds the air inlet grille 11 in the predetermined installation position of the mounting groove 2. Since the magnetic attraction force is much greater than the weight of the air inlet grille 11 itself and the vibration load generated by the airflow disturbance during normal operation, the air inlet grille 11 will not loosen, fall off, or make abnormal noises throughout the entire air conditioning cooling operation cycle, ensuring the integrity of the appearance and the continuity of the airflow path.

[0028] Meanwhile, the inclined air inlet holes 12 on the surface of the air inlet grille 11, together with the air outlet holes 13 on the other side of the mounting frame 1, form a directional airflow channel, allowing external air to enter the evaporator area inside the air conditioner with lower resistance and higher uniformity, thereby improving heat exchange efficiency. The filter screen 3 located below the limiting frame 4 initially intercepts dust, hair and particulate matter in the incoming airflow, preventing pollutants from accumulating on the internal heat exchange fins, extending the service life of the equipment and maintaining cooling performance.

[0029] When cleaning or replacing the air intake grille 11 or filter 3 is required, the user only needs to apply a moderate downward pulling force to the air intake grille 11. The pulling force is transmitted to the sliding block 6 through the L-shaped connecting rod 10, causing it to overcome the magnetic attraction between the positive magnetic block 8 and the negative magnetic block 9, and slide upward along the limiting groove 5 (i.e., away from the bottom surface of the limiting groove 5). During this process, the buffer damping rod 7 is compressed, absorbing part of the impact energy and providing smooth motion damping, avoiding structural impact or component damage due to sudden disengagement. As the sliding block 6 moves, the L-shaped connecting rod 10 drives the air intake grille 11 to move downward synchronously, causing it to detach from the mounting groove 2, thereby achieving quick disassembly without tools and with one hand. During reinstallation, simply align the air inlet grille 11 with the mounting slot 2 and insert it. When the L-shaped connecting rod 10 pushes the sliding block 6 close to the bottom of the limiting slot 5, the positive and negative magnetic blocks automatically attract and close under the action of magnetic force, and the buffer damping rod 7 rebounds and resets. The L-shaped connecting rod 10 then locks the air inlet grille 11 in the correct position again.

[0030] Furthermore, the fixed frame 14 on the outside of the mounting frame 1 and the elastic fixing assembly inside, consisting of a limiting block 16, a buffer rod 17, a tension damping rod 18, and a concave fixing plate 19, further enhance the shock resistance and adaptability of the entire air intake grille during the assembly of the whole unit. When the air conditioner casing undergoes slight deformation due to temperature changes or transportation vibrations, the tension damping rod 18 and the buffer rod 17 can absorb stress, preventing cracking or loosening caused by rigid connections; while the mounting holes 20 on the concave fixing plate 19 facilitate the secure integration of the entire air intake grille into the air conditioner front panel or casing using screws or clips, forming a modular installation unit.

[0031] In one embodiment, a filter screen 3 is provided below the limiting frame 4. The filter screen 3 is horizontally arranged and covers the lower part of the air inlet area of ​​the mounting frame 1. A plurality of air outlet holes 13 are opened on the outer wall of the mounting frame 1 away from the air inlet grille 11. The air outlet holes 13 are arranged in an array and penetrate through the side wall of the mounting frame 1.

[0032] The surface of the air inlet grille 11 is provided with a plurality of air inlet holes 12, which are inclined in the vertical direction and form a guide gap between adjacent air inlet holes 12.

[0033] In a specific application of this utility model embodiment, when the air conditioner starts the cooling mode, the indoor air is guided to the area where the air inlet grille is located under the negative pressure of the fan. At this time, the outside air first comes into contact with the surface of the air inlet grille plate 11. The air inlet holes 12 on the plate are opened at a certain angle along the vertical direction. The inclined structure can effectively block the direct line of sight, improve the concealment and overall aesthetics of the product appearance; on the other hand, it plays a pre-guided role for the incoming airflow. When the airflow passes through the inclined channel, it is given a certain tangential velocity component, thereby reducing turbulence and vortices caused by frontal impact and reducing aerodynamic noise.

[0034] After passing through the air inlet 12, the airflow enters the internal cavity of the mounting frame 1. During this process, the filter 3, located below the limiting frame 4 and laid horizontally, intercepts dust, hair, and fibrous particles carried in the air, preventing them from penetrating deeper into the air conditioner and adhering to the evaporator fins or fan impeller. Specifically, the filter 3 is arranged below the limiting frame 4, avoiding the support structure area of ​​the air inlet grille 11 while making full use of the space at the bottom of the mounting groove 2, ensuring maximum coverage without affecting the normal installation and removal of the air inlet grille 11.

[0035] Subsequently, the clean air, after preliminary filtration and rectification, continues to flow towards the inside of the mounting frame 1, and is finally discharged into the internal air duct of the air conditioner through the air outlet 13 opened on the outer wall of the mounting frame 1 on the side away from the air inlet grille 11. The air outlet 13 is arranged in a regular array and penetrates the side wall of the mounting frame 1. Its diameter, spacing, and number are all matched according to the overall air volume requirements and static pressure loss. At the same time, the edges of the air outlet 13 are rounded or concave to guide the airflow, further reducing airflow separation and the generation of secondary eddies, and improving the overall aerodynamic performance.

[0036] In one embodiment, two fixing frames 14 are respectively provided on both sides of the outer wall of the mounting frame 1, and a total of four fixing frames 14 are symmetrically distributed on the left and right sides of the mounting frame 1. Each fixing frame 14 has a fixing groove 15 inside, and each fixing groove 15 has two sets of limiting blocks 16. The two sets of limiting blocks 16 are arranged vertically at intervals. The two sets of limiting blocks 16 are connected by a buffer rod 17. The two ends of the buffer rod 17 are fixedly connected to the upper and lower sets of limiting blocks 16 respectively. Each set of limiting blocks 16 has a tension damping rod 18 connected to the outer wall of the side away from the buffer rod 17. The other ends of the two tension damping rods 18 are fixed to the upper and lower inner walls of the fixing groove 15 respectively.

[0037] In a specific application of this utility model embodiment, when the entire air intake grille module is installed onto the air conditioner housing, the fixing frames 14 on both sides are respectively embedded in or aligned with the pre-reserved mounting positions on the equipment housing. At this time, the upper and lower sets of limiting blocks 16 inside each fixing frame 14 are in a preset equilibrium position under the joint constraint of the tension damping rod 18 and the buffer rod 17. One end of the tension damping rod 18 is connected to the limiting block 16, and the other end is anchored to the upper and lower inner walls of the fixing groove 15, forming a bidirectional elastic support. The buffer rod 17 connecting the upper and lower limiting blocks 16 provides lateral stiffness and overall linkage.

[0038] During the transportation or handling of air conditioners, the equipment inevitably experiences material expansion and contraction due to bumps, collisions, or temperature changes. In such cases, if traditional rigid clips or direct screw connections are used, localized stress concentration can easily occur due to minute dimensional deviations or deformation differences between the housing and the air intake grille, leading to cracking of plastic parts or loosening of the fit. In this embodiment, when external vibration or deformation is transmitted to the fixed frame 14 area, the tension damping rod 18 first undergoes axial extension and contraction deformation, absorbing high-frequency, small-amplitude vibration energy; simultaneously, the buffer rod 17 undergoes bending or shear deformation when the upper and lower limit blocks 16 are relatively displaced, further dissipating low-frequency, large-displacement impacts.

[0039] In one embodiment, the upper and lower sets of limiting blocks 16 are connected together to a concave fixing plate 19. The concave fixing plate 19 has a U-shaped structure, with its opening facing the outside of the mounting frame 1, and its two side wings are respectively fixedly connected to the upper and lower sets of limiting blocks 16.

[0040] Two concave fixing plates 19 are provided on the outer wall of one side of the mounting frame 1, corresponding to the fixing frames 14 on the left and right sides respectively. Each concave fixing plate 19 has at least one mounting hole 20 on its bottom surface.

[0041] In a specific application of this utility model embodiment, when the air intake grille module is installed on the air conditioning unit, a concave fixing plate 19 is provided on each of the left and right sides, corresponding to the two fixing frame 14 areas on the outer wall of the mounting frame 1, respectively. Each concave fixing plate 19 is firmly connected to the upper and lower sets of limiting blocks 16 through its two side wings, forming a "door"-shaped rigid frame. The frame not only integrates the originally dispersed upper and lower limiting blocks 16 into a whole force-bearing unit, but also significantly improves the bending stiffness of the local structure. Since the limiting blocks 16 themselves have formed a flexible support structure through the tension damping rod 18 and the buffer rod 17, the introduction of the concave fixing plate 19 does not sacrifice the elastic characteristics of the structure, but instead adds the necessary structural strength on the basis of flexibility.

[0042] During actual installation, the user or production line fastens the concave fixing plate 19 to the corresponding mounting post or bracket on the air conditioner casing by passing screws through the mounting holes 20 on the bottom surface of the concave fixing plate 19. Since the bottom surface of the concave fixing plate 19 is located at the bottom of the U-shaped structure and the opening faces outward, the fastening force is directly transmitted in a direction perpendicular to the surface of the mounting frame 1, avoiding warping or stress concentration caused by traditional side-screwing.

[0043] Specifically, during air conditioner operation, fan vibration, temperature circulation, and external disturbances from transportation impacts continuously act on the entire front panel structure. At this time, the concave fixing plate 19 and its connected limiting block 16-damping assembly work together. When the housing undergoes slight deformation due to thermal expansion and contraction, the tension damping rod 18 and buffer rod 17 first absorb the displacement, while the concave fixing plate 19 acts as a rigid bridge, constraining the relative movement of the limiting blocks 16 on both sides within a controllable range, preventing excessive local deformation from causing the mounting hole 20 to tear or the screws to loosen.

[0044] Furthermore, since each concave fixing plate 19 connects to both upper and lower limit blocks 16, it forms a closed force loop. When subjected to an impact in a certain direction (such as frontal pressing or side collision), the load is evenly distributed to the upper and lower limit blocks 16 through the concave fixing plate 19, and further dispersed to the upper and lower inner walls of the fixing groove 15 by the tension damping rod 18, thereby avoiding stress concentration at a single connection point.

[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0046] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

[0047] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A detachable injection-molded air inlet grille, characterized in that, include: Mounting frame (1), wherein a mounting slot (2) is provided inside the mounting frame (1); An air intake grille (11) is disposed inside the mounting groove (2) and is adapted to the mounting groove (2); Two limiting frames (4) are provided, which are respectively fixed to the inner walls on both sides of the mounting groove (2). A limiting groove (5) is opened inside the limiting frame (4). A sliding block (6) is disposed in each of the limiting grooves (5) and is slidably disposed along the extending direction of the limiting grooves (5); The buffer damping rod (7) is connected at one end to the outer wall of the sliding block (6) near the air inlet grille (11), and at the other end to the inner wall of the limiting groove (5). A positive magnetic block (8) is disposed on the outer wall of the sliding block (6) on the side away from the buffer damping rod (7); The negative magnetic block (9) is fixed to the inner wall of the bottom surface of the limiting groove (5) and magnetically attracted to the positive magnetic block (8); The L-shaped connecting rod (10) is connected at one end to the outer surface of the sliding block (6) and at the other end to the bottom surface of the air intake grille (11).

2. The detachable injection-molded air inlet grille according to claim 1, characterized in that, A filter screen (3) is provided below the limiting frame (4), and the filter screen (3) is horizontally arranged and covers the lower part of the air inlet area of ​​the mounting frame (1).

3. The detachable injection-molded air inlet grille according to claim 1, characterized in that, The mounting frame (1) has several air outlet holes (13) on the outer wall of the side away from the air inlet grille (11). The air outlet holes (13) are arranged in an array and penetrate the side wall of the mounting frame (1).

4. The detachable injection-molded air inlet grille according to claim 1, characterized in that, The surface of the air inlet grille (11) is provided with a plurality of air inlet holes (12), the air inlet holes (12) are inclined in the vertical direction, and a guide gap is formed between adjacent air inlet holes (12).

5. The detachable injection-molded air inlet grille according to claim 1, characterized in that, Two fixing frames (14) are provided on each side of the outer wall of the mounting frame (1), and a total of four fixing frames (14) are symmetrically distributed on the left and right sides of the mounting frame (1). Each fixing frame (14) has a fixing groove (15) inside.

6. The detachable injection-molded air inlet grille according to claim 5, characterized in that, Each of the fixed slots (15) is provided with two sets of limiting blocks (16). The two sets of limiting blocks (16) are arranged vertically at intervals. The two sets of limiting blocks (16) are connected by a buffer rod (17). The two ends of the buffer rod (17) are fixedly connected to the upper and lower sets of limiting blocks (16) respectively.

7. The detachable injection-molded air inlet grille according to claim 6, characterized in that, Each of the limiting blocks (16) is connected to a tension damping rod (18) on the outer wall of the side away from the buffer rod (17), and the other ends of the two tension damping rods (18) are respectively fixed to the upper and lower inner walls of the fixing groove (15).

8. The detachable injection-molded air inlet grille according to claim 6, characterized in that, The upper and lower sets of limiting blocks (16) are connected together to a concave fixing plate (19). The concave fixing plate (19) has a U-shaped structure, with its opening facing the outside of the mounting frame (1), and its two side wings are respectively fixedly connected to the upper and lower sets of limiting blocks (16).

9. The detachable injection-molded air inlet grille according to claim 8, characterized in that, The outer wall of one side of the mounting frame (1) is provided with two concave fixing plates (19), which correspond to the fixing frames (14) on the left and right sides respectively. Each concave fixing plate (19) has at least one mounting hole (20) on its bottom surface.

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