Upper cover and lower cover buckling structure

Abstract

The utility model relates to the technical field of mechanical connection structures, and discloses an upper and lower cover buckling structure in order to solve the problem that large upper and lower cover structures are not convenient to buckle in the prior art. Comprising an upper cover, a lower cover and a metal buckle, one end of the upper cover and one end of the lower cover are buckled and fixed through the metal buckle, the whole metal buckle is arranged in a C shape, the upper end of the metal buckle is attached to the upper cover, a cylindrical fixing boss is arranged on the lower surface of the upper end of the metal buckle, and the lower end of the metal buckle is attached to the lower cover. Clamping teeth are arranged on the upper surface of the lower end of the metal buckling piece, the lower cover is provided with a fixing groove embedded with the clamping teeth, the lower end of the upper cover is provided with a clamping groove for containing the metal connecting rod, and the two ends of the metal connecting rod are hinged to the fixing bosses. Through the movable matching of the n-shaped bending structure of the metal connecting rod and the movable groove of the upper cover and the precise embedding of the latch and the fixed groove, linkage unlocking can be triggered only by applying a pulling force with a single hand.

Description

Technical Field

[0001] This utility model relates to the field of mechanical connection structure technology, and in particular to a snap-fit ​​structure for upper and lower covers. Background Technology

[0002] In common sealed lighting systems, the lifespan of light sources is usually relatively short. During the lifespan of the lamps, it is often necessary to open the cover to replace the light source or to perform maintenance. At the same time, since the lamps are generally installed at high places, the lamp cover (upper cover) must remain connected to the lamp housing (lower cover) after the cover is opened. For larger lamps, more force is required to open the latches. However, if maintenance is performed at a high position, the risk of danger increases significantly.

[0003] For existing lighting fixtures requiring high-altitude maintenance, such as garden lights, the clips are usually installed at both ends of the fixture (e.g., Figure 7 and 8 As shown, opening the top cover of the light fixture requires two hands to open the latches on both sides. Because it's at a certain height off the ground, using both hands simultaneously to open the latches can easily lead to instability and other risks, potentially causing falls or other accidents. If the light fixture could be opened with one hand, the risks associated with opening the latches would be significantly reduced.

[0004] Another single-clamp design exposes the connecting rod and the screws securing the connecting rod on the hand operating surface (e.g., Figure 9 As shown, when opening with one hand, the exposed screws can easily cause hand cuts, and the exposed connecting rods and the screws fixing the connecting rods affect the overall aesthetics of the product.

[0005] Therefore, there is an urgent need for a convenient device to open the latch, allowing the top cover of the lamp to be opened with one hand without easily scratching the hand. Utility Model Content

[0006] The purpose of this utility model is to provide a snap-fit ​​structure for upper and lower covers to solve the problem that the existing technology is not convenient enough for snapping together large upper and lower cover structures.

[0007] To achieve the above objectives, the specific technical solution of the upper and lower cover snap-fit ​​structure of this utility model is as follows:

[0008] A snap-fit ​​structure for upper and lower covers includes an upper cover, a lower cover, and a metal snap-fit ​​component. One end of the upper cover and the lower cover are snapped together and fixed by the metal snap-fit ​​component. The metal snap-fit ​​component is C-shaped in shape. The upper end of the metal snap-fit ​​component fits into the upper cover. A cylindrical fixing boss is provided on the lower surface of the upper end of the metal snap-fit ​​component. The lower end of the metal snap-fit ​​component fits into the lower cover. A locking tooth is provided on the upper surface of the lower end of the metal snap-fit ​​component. The lower cover is provided with a fixing groove for engaging the locking tooth. The lower end of the upper cover is provided with a locking groove for accommodating a metal connecting rod. Both ends of the metal connecting rod are hinged to the fixing boss.

[0009] Furthermore, the C-shaped metal fastener is divided into four areas according to the plate surface: the first area is a flat plate structure that fits with the top cover, with a cylindrical fixing boss at the lower end; the second area is inclined relative to the horizontal plane; the third area extends vertically; and the fourth area is a flat plate structure that extends horizontally, with a locking tooth at the upper end.

[0010] Furthermore, the top of the metal buckle and the part that fits against the top cover are U-shaped to facilitate hand placement and fastening.

[0011] Furthermore, the metal connecting rod is arranged in a symmetrical Z-shape in the middle, and the lower cover has movable grooves at both ends of the Z-shaped metal connecting rod to facilitate the movement of the metal connecting rod.

[0012] Furthermore, the lower end of the slot of the upper cover is provided with a movable groove, and the bent part of the metal connecting rod slides in conjunction with the movable groove.

[0013] Furthermore, the width of the middle section of the fourth region of the U-shaped arrangement can accommodate at least two fingers.

[0014] Furthermore, the lower surface of the upper cover is provided with at least two bolt holes, and a washer is provided between the bolt and the metal connecting rod. The bolt passes through the bolt hole and the metal connecting rod is fixed by the washer.

[0015] Furthermore, the lower cover is provided with a bolt groove for accommodating bolts at the bolt hole location corresponding to the upper cover, and the bolt holes are symmetrically distributed on both sides of the locking groove.

[0016] The upper and lower cover snap-fit ​​structure provided by this utility model has the following advantages:

[0017] By utilizing the zigzag bending structure of the metal connecting rod and the sliding engagement of the upper cover's movable groove, combined with the precise engagement of the fourth area's locking teeth and fixing groove, the linkage unlocking can be triggered by applying a pulling force with only one hand, solving the safety hazard of instability caused by two-handed operation during high-altitude work. Simultaneously, the integrated metal structure reduces the need for multi-part assembly required by traditional buckles, effectively lowering production costs. The U-shaped first area and concealed bolt layout result in a clean appearance, easily integrating with the lamp housing and meeting the aesthetic requirements of consumer electronics products. Compared to existing technologies, it significantly reduces operational complexity while maintaining strength. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the device provided by this utility model with the cover open.

[0019] Figure 2 A schematic diagram of the overall structure of the device provided by this utility model;

[0020] Figure 3Schematic diagram of the metal fastener and metal connecting rod provided by this utility model;

[0021] Figure 4 Exploded view of the device provided by this utility model;

[0022] Figure 5 Exploded view of the metal fastener provided by this utility model;

[0023] Figure 6 A schematic diagram of the lower surface of the upper cover provided by this utility model;

[0024] Figure 7 Schematic diagram of the conventional double buckle technology provided by this utility model Figure 1 ;

[0025] Figure 8 Schematic diagram of the conventional double buckle technology provided by this utility model Figure 2 ;

[0026] Figure 9 A schematic diagram of the conventional single-clamp screw installation part provided by this utility model.

[0027] In the diagram: 1. Top cover; 11. Movable groove; 2. Bottom cover; 21. Fixing groove; 22. Bolt hole; 23. Washer; 24. Bolt groove; 3. Metal fastener; 31. First area; 311. Fixing boss; 32. Second area; 33. Third area; 34. Fourth area; 341. Clamping tooth; 4. Metal connecting rod. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0029] See Figure 1-5This utility model provides a snap-fit ​​structure for upper and lower covers, suitable for scenarios requiring one-handed operation and balancing safety and aesthetics (such as high-altitude lighting fixtures, outdoor equipment, etc.). The metal snap-fit ​​component 3 is a one-piece plate with an overall C-shaped design. The C-shaped metal snap-fit ​​component 3 is divided into four areas based on the plate surface: The first area 31 is a U-shaped flat structure for easy hand placement and snapping. The U-shape conforms to ergonomics, allowing fingers to easily reach inside and snap. A cylindrical fixing boss 311 is provided at the lower end for fixing the metal connecting rod 4. The second area 32 is inclined relative to the horizontal plane, matching the slope of the upper cover 1. The third area 33 extends vertically, fitting the sides of the upper cover 1 and lower cover 2. The fourth area 34 is a horizontal flat structure with a locking tooth 341 at the upper end for engaging and locking with the fixing groove 21 of the lower cover 2. The metal connecting rod 4 has a symmetrical Z-shaped bending structure. Both ends are hinged to the fixed bosses 311. The bent ends rotate with the movable grooves of the upper cover 1, and the middle long rod rotates with the locking groove, achieving a linkage between opening and closing. Bolt fixing assembly: The bottom of the lower cover 2 has bolt holes 22, symmetrically arranged. Bolts pass through the bolt holes 22 to fix the upper and lower covers 2. Washers 23 are provided at the lower ends of the bolts to prevent the metal connecting rod 4 from coming out. Corresponding bolt grooves are provided on the upper cover at the positions of the bolt holes 22 to accommodate the bolts when the upper cover 1 and lower cover 2 are fastened together, maintaining an aesthetically pleasing appearance.

[0030] When in use, since the upper cover 1 and lower cover 2 are usually closed, when it is necessary to perform lamp maintenance or replacement, since street lights, courtyard lights and other lamps are often in mid-air, the staff needs to open the product upper cover 1 with one hand. At this time, the finger is placed in the cavity between the first area 31 set in the U shape and the upper cover 1. By applying a pulling force to the first area 31 with the finger, the metal buckle 3 moves backward. Since the metal connecting rod 4 is embedded in the snap-fit ​​groove, and the two ends of the metal buckle 3 are fixed in the cylindrical fixing boss 311 of the fourth area 34, after the finger applies a pulling force, the metal buckle 3 and the metal connecting rod 4 will rotate along the metal connecting rod 4 in the snap-fit ​​groove. At this time, the metal buckle 3 rotates counterclockwise along the middle part of the metal connecting rod 4, and the snap teeth 341 on the fourth area 34 are also pulled out into the fixing groove 21 to complete the buckle opening. After the buckle is opened, the upper cover 1 can be opened to inspect internal problems.

[0031] When closing is required, close the upper cover 1 and the lower cover 2. At this time, first engage the locking teeth 341 on the fourth area 34 of the metal buckle 3 with the fixing groove 21, and then push the metal buckle 3 clockwise. The metal connecting rod 4 will rotate in the movable groove 11 to complete the buckling of the metal buckle 3.

[0032] Preferably, the bolt hole 22 is located on the lower surface of the upper cover 2, so that it can effectively prevent the metal buckle 3 from being scratched by the bolt when it is opened.

[0033] In summary, this application achieves convenient single-handed operation for opening and closing the upper and lower covers 2 through the composite structure design of the integrated metal buckle 3 and connecting rod, while also ensuring anti-detachment safety and assembly economy. The sliding cooperation between the Z-shaped bending structure of the metal connecting rod 4 and the movable groove of the upper cover 1, combined with the precise engagement of the locking teeth 341 in the fourth area 34 and the fixing groove 21, allows for triggering the linkage unlocking with only a single-handed pull, solving the safety hazard of instability caused by two-handed operation during high-altitude work. Furthermore, placing the bolts securing the metal connecting rod 4 on the lower surface of the upper cover 1 effectively prevents scratches when opening the buckle. Compared to existing technologies, this application, through the coordinated action of the linkage rod and the U-shaped groove accommodating finger force, significantly reduces operational complexity while maintaining strength, making it particularly suitable for scenarios requiring frequent maintenance, such as high-altitude garden lights and outdoor equipment.

[0034] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An upper and lower cover snap structure, characterized by, The utility model relates to a metal buckle piece (3) is fixedly connected between the upper cover (1) and the lower cover (2), and the metal connecting rod (4) is fixedly connected to the lower cover (2) and the upper cover (1) through the metal buckle piece (3).

2. The upper and lower cover buckling structure according to claim 1, wherein The metal buckle piece is divided into four regions according to the plate surface: the first region (31) is a flat plate structure that is attached to the upper cover (1), and the lower end of the first region (31) is provided with a cylindrical fixed boss (311); the second region (32) is arranged in an inclined manner relative to the horizontal plane; the third region (33) extends vertically; and the fourth region (34) is a flat plate structure that extends horizontally, and the upper end of the fourth region (34) is provided with a clamping tooth (341).

3. The upper and lower cover buckling structure according to claim 2, wherein The metal connecting rod (4) is arranged in a middle-symmetrical U-shaped manner, and the lower cover (2) is provided with a movable slot (11) at a position corresponding to the two ends of the U-shaped metal connecting rod (4) to facilitate the movement of the bending part of the metal connecting rod (4).

4. The upper and lower cover snap structure according to claim 1, wherein The top of the metal buckle piece (3) is arranged in a U-shaped manner that is convenient for a hand to hold and buckle.

5. The upper and lower cover buckling structure according to claim 4, wherein The width of the fourth region (34) in the U-shaped arrangement can accommodate at least two fingers.

6. The upper and lower cover snap structure according to claim 1, wherein The lower surface of the upper cover is provided with at least two bolt holes (22), and a gasket (23) is arranged between the bolt and the metal connecting rod, and the metal connecting rod (4) is fixed by the bolt passing through the bolt hole (22) through the gasket (23).

7. The upper and lower cover snap structure according to claim 6, wherein The lower cover is provided with a bolt slot (24) for accommodating the bolt at a position corresponding to the bolt hole (22) of the upper cover, and the bolt hole (22) and the bolt slot (24) are symmetrically distributed on both sides of the clamping slot.

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