Screwing structure for rear cover of flashlight

Abstract

The utility model discloses a screwing structure for a rear cover of a flashlight, and relates to the technical field of flashlights, the screwing structure comprises a cover body and a connecting assembly, the inside of the cover body is in sliding connection with a barrel body, the connecting assembly is arranged inside the cover body, and the connecting assembly comprises a limiting groove, a limiting block, a fixing column, a sealing plate and a compression spring. According to the screwing structure for the rear cover of the flashlight, through the arrangement of the connecting assembly, when the cover body and the barrel body are screwed and assembled, a limiting block only needs to be inserted into an opening of a limiting groove, at the moment, an inclined part at the opening can play a guiding role, the convenience during butt joint is improved, then the cover body is pushed forcibly to enable a compression spring to be compressed, and then the cover body and the barrel body are screwed and assembled. At the moment, the limiting block can slide to the lower end of the limiting groove, then the limiting block is loosened after being rotated by a certain angle, the compression spring can push the cover body to move upwards, the limiting block slides into the end of the limiting groove, and then the cover body and the cylinder body can be rapidly connected.

Description

TECHNICAL FIELD

[0001] The utility model relates to a flashlight technical field, concretely is a kind of screwing structure for flashlight rear cover. BACKGROUND

[0002] Flashlight is a kind of handheld electronic lighting tool, and flashlight rear cover can protect the side of battery, and also can connect flashlight circuit.

[0003] As the utility model with publication No. CN208365244U discloses a multifunctional flashlight. The utility model is provided with transparent convex head mirror on the lamp cap, and lamp main body with multiple sockets is arranged in the lamp barrel;It has the advantages of convenient use, illumination function and charging and discharging as power bank, but the rear cover of the flashlight is usually connected and installed with the barrel by thread, but sometimes it is difficult to unscrew during subsequent disassembly due to over-tightening during installation, and the thread is also prone to wear after multiple uses, resulting in reduced overall sealing, and the thread needs to be rotated multiple times during screwing, which is time-consuming and laborious, especially in emergency situations.

[0004] Therefore, in view of the above, the existing structure and defects are improved, and a screwing structure for flashlight rear cover is provided. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a screwing structure for flashlight rear cover to solve the problems raised in the background art.

[0006] To achieve the above object, the utility model provides the following technical scheme: a screwing structure for flashlight rear cover, comprising a cover body and a connecting assembly, the inside of the cover body is slidably connected with a barrel, the connecting assembly is arranged inside the cover body, the connecting assembly comprises a limiting groove, a limiting block, a fixed column, a sealing plate and a compression spring, the outer side of the barrel is provided with a limiting groove, and the inside of the limiting groove is slidably connected with a limiting block, the bottom center of the cover body is fixed with a fixed column, and the outer side of the fixed column is slidably connected with a sealing plate, and the top of the sealing plate is connected with a compression spring.

[0007] Further, the number of limiting blocks is three, and the limiting blocks are fixedly connected with the cover body.

[0008] Further, the limiting groove is U-shaped, and the width of the two ends of the limiting groove matches the width of the limiting block.

[0009] Further, anti-skid convex strips are equidistantly arranged on the outer side of the cover body, and the cover body is slidably connected with the sealing plate.

[0010] Further, the bottom outer end of the sealing plate is embedded with a first sealing ring, and the first sealing ring is attached to the cylinder.

[0011] Further, the bottom of the fixed column is threadedly connected with a screw, and the bottom diameter of the screw is larger than the central hole diameter of the sealing plate.

[0012] Further, the bottom of the sealing plate is fixed with a tower spring, and one side of the tower spring is connected with a contact piece.

[0013] Further, the lower end of the contact piece is slidably connected with a conductive ring, and the conductive ring is fixedly connected with the cylinder.

[0014] The utility model provides a screwing structure for flashlight rear cover has the following beneficial effects:

[0015] 1, the utility model discloses a connecting assembly is set up, when the screwing assembly between cover body and cylinder, only need to first insert the limiting block to the opening of limiting slot, the inclined portion of opening can play the guiding role at this moment, is favorable to the convenience of docking, pushes the cover body again with force and makes the compression spring compression, limiting block can slide to the lower end of limiting slot at this moment, only need to rotate a certain angle after releasing hand, and the compression spring will push the cover body and go up, make limiting block slip into the end of limiting slot, can connect between cover body and cylinder fast, and when removing, only need to press the cover body with force first, make limiting block slip into the lower end of limiting slot, rotate a certain angle can make limiting block from limiting slot removal, compared with prior art screwing structure, the application need not to rotate multiple turns to the rear cover and disassembles, is favorable to the speed of battery replacement, and the cover body and cylinder are not rigidly connected, therefore when flashlight falls accidentally in the use process and the cover body first lands, still can use the compression spring and play a certain buffering protection function, and the whole practicality is stronger.

[0016] 2, the utility model discloses the setting of first sealing ring can improve the sealing performance between sealing plate and cylinder, avoid the water vapor and enter the inside of cylinder and cause the influence to circuit, simultaneously use second sealing ring also can improve the sealing performance between sealing plate and cover body, and also can use the greater friction resistance of second sealing ring, keep the stability of cover body, avoid the cover body and easily sway, and the application is simple, only need to unscrew the screw and can replace the internal parts, make maintenance assembly also very convenient. DRAWINGS

[0017] Figure 1 It is the whole bottom structure schematic diagram of the utility model for flashlight rear cover's screwing structure;

[0018] Figure 2The utility model relates to a sealing plate three-dimensional structure schematic diagram for the screwing structure of the rear cover of a flashlight.

[0019] Figure 3 The utility model relates to a whole explosion structure schematic diagram for the screwing structure of the rear cover of a flashlight.

[0020] In the drawing: 1, cover body; 2, barrel; 3, connecting assembly; 301, limiting groove; 302, limiting block; 303, fixed column; 304, sealing plate; 305, compression spring; 4, anti -skid convex strip; 5, first sealing ring; 6, second sealing ring; 7, screw; 8, tower spring; 9, contact piece; 10, conducting ring. DETAILED DESCRIPTION

[0021] The embodiment of the utility model will be described further in detail below in connection with the drawings and examples. The following examples are used to illustrate the utility model, but can not be used to limit the scope of the utility model.

[0022] As Figures 1 to 3 Shown, a kind of screwing structure for the rear cover of a flashlight, including cover body 1 and connecting assembly 3, the inside sliding connection of cover body 1 has barrel 2, connecting assembly 3 is set to the inside of cover body 1, connecting assembly 3 includes limiting groove 301, limiting block 302, fixed column 303, sealing plate 304 and compression spring 305, the outside of barrel 2 is equipped with limiting groove 301, and the inside of limiting groove 301 is slidingly connected with limiting block 302, the number of limiting block 302 is provided with three, and limiting block 302 is fixedly connected with cover body 1, by the setting of multiple limiting block 302, the strength of connection can be enhanced, the connecting strength of cover body 1 and barrel 2, limiting groove 301 is U-shaped, and the width of both ends of limiting groove 301 matches the width of limiting block 302, limiting block 302 can limit limiting groove 301, and when inserting limiting block 302 into the opening of limiting groove 301, the inclined portion of the opening can play a guiding role, which is conducive to improving the convenience when docking, the bottom center of cover body 1 is fixed with fixed column 303, and the outside of fixed column 303 is slidingly connected with sealing plate 304, the top of sealing plate 304 is connected with compression spring 305, after rotating cover body 1 by a certain angle and releasing hand, compression spring 305 will push cover body 1 to move upwards, so that limiting block 302 slides into the end of limiting groove 301, so that cover body 1 and barrel 2 can be connected quickly, and when disassembling, limiting block 302 is only needed to be slid into the lower end of limiting groove 301 by pressing cover body 1, and then rotating by a certain angle can make limiting block 302 move out of limiting groove 301, so that the speed when replacing battery is improved.

[0023] As Figure 1 And Figure 3As shown, the outer side of the cover 1 is provided with anti-skid convex 4, and the cover 1 is slidingly connected with the sealing plate 304, and the anti-skid convex 4 can avoid hand slipping, the bottom outer end of the sealing plate 304 is embedded with the first sealing ring 5, and the first sealing ring 5 is attached to the barrel 2, the first sealing ring 5 can improve the sealing performance between the sealing plate 304 and the barrel 2, avoid water vapor into the inside of the barrel 2 to affect the circuit, the outer side of the sealing plate 304 is embedded with the second sealing ring 6, the second sealing ring 6 can improve the sealing performance between the sealing plate 304 and the cover 1, and also can use the larger friction resistance of the second sealing ring 6 to keep the stability of the cover 1, avoid the cover 1 from easily shaking, the bottom of the fixed column 303 is threadedly connected with the screw 7, and the bottom diameter of the screw 7 is larger than the center hole diameter of the sealing plate 304, which can limit one end of the sealing plate 304, the bottom of the sealing plate 304 is fixed with the tower spring 8, and one side of the tower spring 8 is connected with the contact piece 9, the lower end of the contact piece 9 is slidingly connected with the conductive ring 10, and the conductive ring 10 is fixedly connected with the barrel 2, since the tower spring 8 is connected with the negative electrode of the battery, when the contact piece 9 contacts the conductive ring 10, the circuit inside the flashlight is connected.

[0024] In summary, the screwing structure for the flashlight rear cover is used, first according to the structure shown in Figure 1 、 Figure 2 and Figure 3 , the limiting block 302 is inserted into the opening of the limiting groove 301, and then the cover 1 is pushed to compress the compression spring 305, at this time the limiting block 302 can slide to the lower end of the limiting groove 301, then only need to rotate a certain angle and release the hand, the compression spring 305 will push the cover 1 to move up, so that the limiting block 302 slides into the end of the limiting groove 301, which can quickly connect the cover 1 and the barrel 2, and when rotating, the anti-skid convex 4 is used to improve the friction between the hand and the cover 1 to avoid slipping, then the first sealing ring 5 will be tightly attached to the outer edge of the barrel 2, which can improve the sealing performance between the sealing plate 304 and the barrel 2, avoid water vapor into the inside of the barrel 2 to affect the circuit, at the same time, the second sealing ring 6 can also improve the sealing performance between the sealing plate 304 and the cover 1, and also can use the larger friction resistance of the second sealing ring 6 to keep the stability of the cover 1, avoid the cover 1 from easily shaking, then when the flashlight falls accidentally during use and the cover 1 lands first, the compression spring 305 can also play a certain buffering protection role, finally, when replacing the battery, only need to press the cover 1 first, so that the limiting block 302 slides into the lower end of the limiting groove 301, then rotate a certain angle to make the limiting block 302 move out of the limiting groove 301, which is conducive to improving the speed of battery replacement.

[0025] The embodiments of the present application are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present application to the forms disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. Embodiments were chosen and described in order to best explain the principles of the present application and its practical application, and to thereby enable others skilled in the art to best utilize the present application with various modifications as are suited to the particular use contemplated.

Claims

1. A screw-on structure for a flashlight back cover, comprising a cover body (1) and a connecting assembly (3), characterized in that, The cover (1) is slidably connected to the cylinder (2), and the connecting assembly (3) is disposed inside the cover (1). The connecting assembly (3) includes a limiting groove (301), a limiting block (302), a fixing post (303), a sealing plate (304), and a compression spring (305). The cylinder (2) has a limiting groove (301) on its outer side, and the limiting block (302) is slidably connected inside the limiting groove (301). The bottom center of the cover (1) is fixed with a fixing post (303), and the sealing plate (304) is slidably connected to the outer side of the fixing post (303). The top of the sealing plate (304) is connected with a compression spring (305).

2. The screw-on structure for a flashlight back cover according to claim 1, characterized in that, The number of the limiting blocks (302) is set to three, and the limiting blocks (302) are fixedly connected to the cover (1).

3. The screw-on structure for a flashlight back cover according to claim 1, characterized in that, The limiting groove (301) is U-shaped, and the width of both ends of the limiting groove (301) matches the width of the limiting block (302).

4. The screw-on structure for a flashlight back cover according to claim 1, characterized in that, The cover (1) is provided with anti-slip ridges (4) at equal intervals on the outer circumference, and the cover (1) is slidably connected to the sealing plate (304).

5. The screw-on structure for a flashlight back cover according to claim 1, characterized in that, The bottom outer end of the sealing plate (304) is fitted with a first sealing ring (5), and the first sealing ring (5) is in contact with the cylinder (2). The outer side of the sealing plate (304) is fitted with a second sealing ring (6).

6. The screw-on structure for a flashlight back cover according to claim 1, characterized in that, The bottom of the fixing post (303) is threaded with a screw (7), and the bottom diameter of the screw (7) is larger than the center hole diameter of the sealing plate (304).

7. The screw-on structure for a flashlight back cover according to claim 1, characterized in that, The bottom of the sealing plate (304) is fixed with a tower spring (8), and a contact piece (9) is connected to one side of the tower spring (8).

8. The screw-on structure for a flashlight back cover according to claim 7, characterized in that, A conductive ring (10) is slidably connected to one side of the lower end of the contact piece (9), and the conductive ring (10) is fixedly connected to the cylinder (2).

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