Passenger car air conditioner air inlet mesh enclosure locking device

Abstract

The utility model discloses a passenger car air conditioner air inlet mesh enclosure locking device which comprises a screw, an E-shaped opening clamp spring and a base, the base comprises a base body, and the base body is provided with a through hole for the screw to penetrate through; the screw comprises a screw body, the diameter of the middle of the screw body is smaller than that of the lower portion of the screw body, a rotating groove is formed in the lower portion of the screw body, and a locking groove is formed in the top of the screw body. According to the utility model, only a slotted screwdriver or a coin or other objects are needed for opening and closing, and tools such as a wrench are not needed; moreover, the bolt does not need to be rotated for many circles like dismounting the bolt, and only needs to be rotated by 90 degrees, so that the working intensity of dismounting is greatly reduced; due to the fact that the screw is fixed on the air inlet grille plate through the E-shaped opening clamp spring, the screw is prevented from falling off after the air inlet grille plate is disassembled, and due to the fact that a thread structure is not arranged, the trouble that threads are damaged due to frequent disassembly is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to an automobile parts technical field, concretely is a passenger train air conditioner air inlet mesh enclosure locking device. BACKGROUND

[0002] The air inlet of the passenger train air conditioning system is arranged above the head of passengers on the top of the carriage, and the air inlet is provided with an air conditioner filter screen, a system and electrical components, so that the air inlet is also a maintenance opening of the air conditioning system. Since the air inlet is located in the carriage, in order to make the whole carriage beautiful, an aluminum alloy air inlet mesh enclosure which is the same as the interior decoration of the carriage is installed at the air inlet.

[0003] The air inlet mesh enclosure is composed of an air inlet grille plate, a frame, a hinge and a locking device. One side of the air inlet grille plate is connected with the frame through the hinge, and the other side is connected with the frame by the locking device. The locking device generally adopts a bolt mode. When we need to open the air inlet mesh enclosure for maintenance or cleaning of the filter screen, the locking device (i.e. the bolt) needs to be removed first, and then the air inlet grille plate is rotated around the hinge to be opened, which is similar to opening a door. Since the filter screen needs to be cleaned frequently or the air conditioner needs to be maintained, the air inlet mesh enclosure is opened frequently, which increases the workload of the driver and the maintenance personnel every time the bolt is removed, and the frequent removal of the bolt is easy to damage the bolt thread, thereby shortening the service life of the air inlet mesh enclosure. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a passenger train air conditioner air inlet mesh enclosure locking device to solve the problems in the prior art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a passenger train air conditioner air inlet mesh enclosure locking device, which comprises a screw, an E-shaped open clamp spring and a base. The base comprises a base body, and the base body is provided with a through hole for the screw to pass through. The screw comprises a screw body, the diameter of the middle part of the screw body is smaller than the diameter of the lower part of the screw body, the lower part of the screw body is provided with a rotating groove, and the top of the screw body is provided with a locking groove.

[0006] Preferably, the opposite two side edges of the base body are provided with mounting frames, and the mounting frames are provided with mounting holes. The other two side edges of the base body are provided with locking buckles.

[0007] Preferably, the mounting frame is in an L-shaped structure.

[0008] Preferably, the utility model further comprises a frame and an air inlet grille plate, the air inlet grille plate is connected with the frame through a hinge, the base is fixed on the frame of the air inlet mesh enclosure through a rivet, and the screw is fixed on the air inlet grille plate through the E-shaped open clamp spring.

[0009] Compared with the prior art, the utility model has the advantages that only a screwdriver or a coin can be used to open and close, without the need of a wrench, and only 90 degrees of rotation is needed, instead of many circles of rotation, so that the work intensity of dismounting is greatly reduced. BRIEF DESCRIPTION OF DRAWINGS

[0010] The accompanying drawings are included to provide a further understanding of the utility model, and constitute a part of the specification, which are used together with the embodiments of the utility model to explain the utility model, and do not constitute the limitation to the utility model. In the drawings:

[0011] Figure 1 It is the structural schematic diagram of the utility model;

[0012] Figure 2 It is the local structural schematic diagram of the utility model screw and base when using;

[0013] Figure 3 It is the structural schematic diagram of the utility model screw and base;

[0014] Figure 4 It is the structural schematic diagram of the utility model screw and base combination after;

[0015] Figure 5 It is the structural schematic diagram of the utility model base;

[0016] Figure 6 It is the structural schematic diagram of the utility model screw.

[0017] In the drawing: 1, frame; 2, air inlet grille plate; 3, hinge; 4, screw; 5, base; 6, E-type opening snap spring; 41, screw main body; 42, locking recess; 43, rotation groove; 51, base main body; 52, through hole; 53, mounting frame; 54, mounting hole; 55, locking buckle. DETAILED DESCRIPTION

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model.

[0019] Please see Figures 1-6 In this embodiment of the present invention, a locking device for a bus air conditioning inlet grille includes a screw 4, an E-type open retaining spring 6, and a base 5. The base 5 includes a base body 51, which has a through hole 52 for the screw 4 to pass through. The screw 4 includes a screw body 41, the diameter of the middle part of the screw body 41 being smaller than the diameter of the lower part of the screw body 41. The lower part of the screw body 41 has a rotating groove 43, and the top part of the screw body 41 has a locking groove 42. When the air inlet grille is closed, simply press the screw through the through hole of the base. After the locking groove of the screw reaches the locking buckle position of the base, the locking buckle enters the locking groove of the screw by relying on its own elasticity to fix the screw, thus completing the closing and fixing of the air inlet grille. When you need to remove the air intake grille, simply use a flathead screwdriver, a coin, or a card to rotate it 90 degrees in the rotating groove. The screw's locking groove will disengage from the locking clip on the base. Due to the elasticity of the locking clip, the screw will automatically disengage from the base, and the air intake grille will open.

[0020] Mounting brackets 53 are provided on opposite sides of the base body 51, and mounting brackets 53 have mounting holes 54; locking buckles 55 are provided on the other two sides of the base body 51, and the mounting brackets 53 have an L-shaped structure.

[0021] The air intake grille 2 is connected to the frame 1 via a hinge 3; the base 5 is fixed to the frame 1 of the air intake grille by rivets, and the screw 4 is fixed to the air intake grille 2 by an E-type open snap ring 6.

[0022] The utility model discloses a working principle is: only need a screwdriver or coin and so on object can open and close, need not wrench and so on tool, and do not need to rotate many circles like disassembling bolt, only need to rotate 90 degrees, greatly reduced the working strength of disassembly. Since the screw is fixed on the air inlet grille plate through the E-shaped opening snap spring, prevents the screw from falling after the air inlet grille plate is disassembled, and since there is no thread structure, the trouble of thread damage caused by frequent disassembly is avoided.

[0023] When closing the air inlet grille plate, only need to press the screw through the bottom seat's pair of holes, and the locking groove of the screw reaches the bottom seat locking buckle position, and relies on the elastic force of locking buckle itself, and locking buckle enters the locking groove of the screw and fixes the screw, and when needing to disassemble the air inlet grille plate, only need to rotate 90 degrees in the rotating groove with a screwdriver or coin, card and so on, and the locking groove of the screw is separated from the locking buckle of the bottom seat, and since the elastic force of locking buckle, the screw is separated from the bottom seat automatically, and the air inlet grille plate is opened.

[0024] Finally, it should be pointed out that: the above-mentioned only for the preferred embodiment of the utility model, and does not limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features. Any modification, equivalent replacement, improvement etc. in the spirit and principles of the utility model, should be included in the protection scope of the utility model.

Claims

1. A locking device for a passenger vehicle air conditioner inlet grille, characterized in that: Including screw (4), E type open circlip (6) and base (5), the base (5) includes base body (51), the base body (51) is opened and is passed through the hole (52) for screw (4);The screw (4) includes screw body (41), the diameter of the middle part of the screw body (41) is less than the diameter of the lower part of the screw body (41), the lower part of the screw body (41) is opened and is set up rotation groove (43), the top of the screw body (41) is opened and is set up locking groove (42).

2. The bus air conditioning inlet screen locking device according to claim 1, characterized in that: The opposite two side edges of the base body (51) are provided with mounting bracket (53), the mounting bracket (53) is opened and is set up mounting hole (54);The base body (51) two other side edges are provided with locking buckle (55).

3. The bus air conditioning inlet screen locking device according to claim 2, characterized in that: The mounting bracket (53) is L-shaped structure.

4. The bus air conditioning inlet screen locking device of claim 1, wherein: It also includes frame (1) and air inlet grille plate (2), the air inlet grille plate (2) is connected with frame (1) through hinge (3);The base (5) is fixed on the frame (1) of air inlet screen cover through rivet, the screw (4) is fixed on the air inlet grille plate (2) through E type open circlip (6).

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