Anti-falling D-shaped buckle

Abstract

The utility model discloses an anti-drop D-shaped buckle, which relates to the technical field of auto spare parts, and comprises a base, the upper end of the base is provided with a chute, the front end of the chute is in sliding connection with a fixing head, the upper end of the fixing head is fixedly provided with a fixing column, the upper end of the fixing column is embedded with a clamping head, the front end of the fixing column is provided with a clamping groove, and the clamping groove is provided with a clamping groove. A clamping block is welded to the middle of the lower end of the sliding groove, and limiting blocks are fixedly installed on the left side and the right side in the sliding groove. According to the anti-falling D-shaped buckle, through cooperation of the clamping block and the clamping groove, the D-shaped buckle can slide to the base conveniently, after sliding is completed, the elastic limiting block can be clamped into the limiting groove in the fixing column, the D-shaped buckle is prevented from loosening and falling off after being installed, and the structural strength is improved; after the D-shaped buckle is installed, the spring in the arc-shaped groove can drive the clamping piece to pop up, the D-shaped buckle is clamped on the sheet metal part, and the pull buckle is prevented from loosening and falling off.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile accessories, in particular to an anti-falling D-shaped buckle. Background Art

[0002] Auto parts are the various units that make up the whole car and a kind of product that serves the car. There are many kinds of auto parts. With the improvement of people's living standards, people's consumption of cars is increasing, and the market of auto parts is getting bigger and bigger. In recent years, auto parts manufacturers are also developing rapidly. D-type buckles are used to connect the interior and exterior decorative parts of the car with the car body, and are usually used to connect decorative panels and sheet metal parts.

[0003] For example, the utility model with application number CN201721642989.1 discloses a car buckle, including a buckle base, a connecting column and a buckle part, wherein the buckle base is circular, the buckle part is conical, the center of the buckle base is vertically connected to one end of the connecting column, and the other end of the connecting column is connected with an end cap. This car buckle has a simple structure and is easy to use. The buckle base is first installed in the buckle seat of the car, and then the buckle part is assembled with the corresponding assembly part. In addition, the other end of the connecting column is connected with an end cap, and the outer periphery of the end cap is provided with an edge, which is an umbrella-shaped structure, and its arc opening points to the buckle part. Such a structure allows the edge to be tilted downward at a certain angle to ensure the tightness of the clamping. At the same time, in order to maintain the toughness of the edge, it is easy to simply sleeve the sealing gasket, and the sealing gasket can effectively play a waterproof role. An empty groove is provided on the elastic sheet. This method is easier to promote.

[0004] Similar to the above application, there are still the following shortcomings: the buckle is prevented from falling off by setting the outer edge of the outer periphery of the end cover and the arc buckle to ensure the tightness of the buckle connection, and the buckle's anti-falling structure is relatively simple, which is not conducive to improving the stability of the buckle. Therefore, in view of this, the existing structure and defects are studied and improved, and an anti-falling D-type buckle is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide an anti-drop D-shaped buckle to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-falling D-type buckle, comprising a base, a sliding groove is provided at the upper end of the base, a fixed head is slidably connected to the front end of the sliding groove, a fixed column is fixedly installed on the upper end of the fixed head, a clamping joint is embedded at the upper end of the fixed column, a clamping groove is provided at the front end of the fixed column, a limiting groove is provided at the lower end of the fixed head, a clamping block is welded and connected to the middle part of the lower end of the sliding groove, limiting blocks are fixedly installed on the left and right sides of the sliding groove, a clamping piece is rotatably connected to the left and right sides of the clamping piece, an arc groove is provided on the side of the clamping piece close to the central axis inside the clamping joint, clamping columns are fixedly installed on the front and rear ends of the clamping piece, and a spring is provided in the arc groove.

[0007] Furthermore, an elastic strip is fixedly installed on the outer side of the clamping joint between the movable grooves, and a plurality of holes and grooves are formed on the elastic strip.

[0008] Furthermore, a movable groove is provided on the outer side of the clamping joint, and a sealing gasket is sleeved on the upper end of the fixing column.

[0009] Furthermore, the outer diameter of the card block matches the inner diameter of the card slot.

[0010] Furthermore, a first fixing groove is opened on the left and right sides of the lower end of the clamping joint, a second fixing groove is opened in the middle of the lower end of the clamping joint, and fixing blocks are fixedly installed on the left and right sides of the upper end of the fixing column.

[0011] Furthermore, a fixing piece is fixedly installed in the middle of the upper end of the fixing column, and a plurality of limiting strips are fixedly installed on the outer side of the fixing piece.

[0012] Furthermore, a groove is provided in the middle of the fixing column and the fixing head, and a latch is slidably connected in the groove.

[0013] The utility model provides an anti-falling D-shaped buckle, which has the following beneficial effects:

[0014] Firstly, the utility model facilitates sliding the D-shaped buckle onto the base through the cooperation of the clamping block and the clamping slot. After the sliding is completed, the elastic limit block will be clamped into the limit slot on the fixed column to prevent the D-shaped buckle from loosening and falling off after installation, thereby improving the structural strength. Through the cooperation of the clamping piece and the arc groove, the spring in the arc groove will drive the clamping piece to pop out after the D-shaped buckle is installed, clamping the D-shaped buckle on the sheet metal to prevent the buckle from loosening and falling off.

[0015] Secondly, the utility model cooperates with the elastic strip and the hole groove. The hole groove improves the flexibility of the elastic strip to prevent the elastic strip from cracking during installation. The elastic strip improves the structural strength of the card joint. At the same time, the inverted joint setting at the lower end of the card joint can also prevent the D-shaped buckle from falling off. The movable groove provides a certain buffer when the card joint is installed to prevent the card joint from being cracked due to excessive force during installation.

[0016] Thirdly, the utility model improves the stability of the engagement between the card connector and the fixed column by cooperating with the first fixed groove and the fixed block. By sliding the fixing piece and the limit strip in the second fixed groove, it is convenient to adjust the distance between the card connector and the fixed column according to the thickness of the sheet metal part, thereby improving the application range of the D-type buckle. At the same time, the pin will fill the gap of the fixing piece to prevent the fixing piece from sliding. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of an anti-falling D-shaped buckle of the utility model;

[0018] Figure 2 This is a schematic diagram of the three-dimensional structure of a fixing head and a clamping joint of an anti-falling D-shaped buckle of the utility model;

[0019] Figure 3 This is a schematic diagram of the three-dimensional structure of a base of an anti-falling D-shaped buckle of the utility model;

[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of a fixing head and a clamping joint of an anti-falling D-shaped buckle of the utility model;

[0021] Figure 5 The utility model is a schematic diagram of the three-dimensional structure of a fixing column and a fixing piece of an anti-falling D-shaped buckle.

[0022] In the figure: 1, base; 2, slide groove; 3, fixed head; 4, fixed column; 5, clamping joint; 6, movable groove; 7, elastic strip; 8, hole groove; 9, clamping groove; 10, limit groove; 11, sealing gasket; 12, clamping block 12; 13, limit block; 14, clamping member; 15, arc groove; 16, spring; 17, clamping column; 18, first fixed groove; 19, fixed block; 20, second fixed groove; 21, fixing member; 22, groove; 23, latch; 24, limit strip. DETAILED DESCRIPTION

[0023] See also Figure 1 The utility model provides a technical solution: an anti-falling D-type buckle, including a base 1, a slide groove 2 is provided at the upper end of the base 1, a fixed head 3 is slidably connected to the front end of the slide groove 2, a fixed column 4 is fixedly installed at the upper end of the fixed head 3, a card joint 5 is embedded at the upper end of the fixed column 4, a movable groove 6 is provided on the outer side of the card joint 5, an elastic strip 7 is fixedly installed between the movable grooves 6 on the outer side of the card joint 5, a plurality of holes 8 are provided on the elastic strip 7, the elastic strip 7 improves the overall strength of the card joint 5, the holes 8 provided on the elastic strip 7 improve the toughness of the elastic strip 7, it is convenient for the card joint 5 to pass through the sheet metal, and the difficulty of installing the D-type buckle is reduced. The movable groove 6 improves the toughness of the card joint 5 to prevent the card joint 5 from cracking during installation;

[0024] See also Figure 2 and Figure 3, a card slot 9 is provided at the front end of the fixed column 4, a limiting slot 10 is provided at the lower end of the fixed head 3, a sealing gasket 11 is sleeved at the upper end of the fixed column 4, a card block 12 is welded and connected at the middle part of the lower end of the slide groove 2, and limiting blocks 13 are fixedly installed on the left and right sides of the slide groove 2. The card slot 9 fits with the card block 12 to facilitate the sliding installation of the D-type buckle. After the D-type buckle is installed, the elastic limiting block 13 will be inserted into the limiting slot 10 provided on the fixed column 4 to prevent the D-type buckle from sliding and rotating after the installation is completed, and prevent the D-type buckle from falling off;

[0025] See also Figure 4 and Figure 5 , a clamping piece 14 is rotatably connected to the left and right sides of the clamping joint 5, an arc groove 15 is opened inside the clamping joint 5 on the side of the clamping piece 14 close to the central axis, a clamping column 17 is fixedly installed at the front and rear ends of the clamping piece 14, a spring 16 is arranged in the arc groove 15, a first fixing groove 18 is opened on the left and right sides of the lower end of the clamping joint 5, a second fixing groove 20 is opened in the middle of the lower end of the clamping joint 5, a fixing block 19 is fixedly installed on the left and right sides of the upper end of the fixing column 4, a fixing piece 21 is fixedly installed in the middle of the upper end of the fixing column 4, and a plurality of limit strips 24 are fixedly installed on the outside of the fixing piece 21, a groove 22 is opened in the middle of the fixing column 4 and the fixing head 3, and a latch 23 is slidably connected in the groove 22, D-type After the buckle is installed, the spring 16 in the arc groove 15 will drive the clip 14 to pop out. The clip 14 is installed upside down. Pulling the D-shaped buckle will make the clip 14 closer to the sheet metal, firmly fix the D-shaped buckle to prevent it from falling off. The first fixing groove 18 cooperates with the fixing block 19 to improve the connection strength between the card joint 5 and the fixing column 4. The fixing part 21 and the limiting strip 24 slide in the second fixing groove 20, which is convenient for adjusting the distance between the card joint 5 and the fixing column 4 according to the thickness of the sheet metal, thereby improving the application range of the D-shaped buckle. At the same time, the pin 23 will fill the gap between the fixing parts 21 to prevent the fixing parts 21 from sliding, thereby improving the structural stability of the D-shaped buckle.

[0026] Working principle: First, according to Figure 1 , Figure 2 and Figure 3 , align the card slot 10 on the fixed head 3 with the card block 12 in the slide slot 2, push the D-shaped buckle backward to be inserted into the base 1, and when it is pushed to the specified position, the elastic limit block 13 will be inserted into the limit slot 9 on the fixed column 4. The double locking of the D-shaped buckle by the card block 12 and the limit block 13 prevents the D-shaped buckle from rotating and sliding, thereby improving the stability of the D-shaped buckle.

[0027] Then according to Figure 5, install the thickness of the automobile sheet metal according to the needs, pull the card connector 5, the fixing block 19 slides in the first fixing groove 18, the fixing part 21 will slide in the second fixing groove 20, the limiting strip 24 makes the fixing part 21 slide step by step in the second fixing groove 20, adjust the distance between the card connector 5 and the fixing column 4 to a suitable distance, insert the pin 23 into the groove 22, the pin 23 will fill the gap between the fixing parts 21, prevent the fixing parts 21 from sliding, and improve the structural strength of the D-type buckle.

[0028] Finally, according to Figure 1 and Figure 4 , insert the D-shaped buckle into the automobile sheet metal. When inserting, the hole groove 8 improves the flexibility of the elastic strip 7 to prevent the elastic strip 7 from cracking during installation. The elastic strip 7 improves the structural strength of the card joint 5. At the same time, the inverted joint setting at the lower end of the card joint 5 can also prevent the D-shaped buckle from falling off. The movable groove 6 provides a certain buffer when the card joint 5 is installed to prevent the card joint 5 from being cracked due to excessive force during installation. After the D-shaped buckle is installed, the spring 16 in the arc groove 15 will push the card column 17, and the card column 17 drives the card component 14 to slide, forcing the card component 14 to pop out. Pulling the D-shaped buckle will make the card component 14 closer to the automobile sheet metal, firmly fix the D-shaped buckle, and prevent the D-shaped buckle from loosening.

Claims

1. An anti-falling D-shaped buckle, characterized in that: The invention comprises a base (1), wherein a slide groove (2) is provided at the upper end of the base (1), a fixed head (3) is slidably connected to the front end of the slide groove (2), a fixed column (4) is fixedly installed at the upper end of the fixed head (3), a clamping joint (5) is embedded at the upper end of the fixed column (4), a clamping groove (9) is provided at the front end of the fixed column (4), a limiting groove (10) is provided at the lower end of the fixed head (3), a clamping block (12) is welded and connected to the middle part of the lower end of the slide groove (2), limiting blocks (13) are fixedly installed on the left and right sides of the slide groove (2), a clamping piece (14) is rotatably connected to the left and right sides of the clamping joint (5), an arc groove (15) is provided on the side of the clamping piece (14) close to the central axis inside the clamping joint (5), a clamping column (17) is fixedly installed at the front and rear ends of the clamping piece (14), and a spring (16) is arranged in the arc groove (15).

2. The anti-drop D-shaped buckle according to claim 1, characterized in that: A movable groove (6) is provided on the outer side of the clamping joint (5), and a sealing gasket (11) is sleeved on the upper end of the fixing column (4).

3. An anti-drop D-shaped buckle according to any one of claims 1 or 2, characterized in that: An elastic strip (7) is fixedly installed between the movable grooves (6) on the outer side of the clamping joint (5), and a plurality of holes (8) are formed on the elastic strip (7).

4. The anti-drop D-shaped buckle according to claim 1, characterized in that: The outer diameter of the clamping block (12) matches the inner diameter of the clamping slot (9).

5. The anti-drop D-shaped buckle according to claim 1, characterized in that: The left and right sides of the lower end of the clamping joint (5) are provided with first fixing grooves (18), the middle part of the lower end of the clamping joint (5) is provided with a second fixing groove (20), and the left and right sides of the upper end of the fixing column (4) are fixedly mounted with fixing blocks (19).

6. The anti-drop D-shaped buckle according to claim 1, characterized in that: A fixing piece (21) is fixedly mounted in the middle of the upper end of the fixing column (4), and a plurality of limiting strips (24) are fixedly mounted on the outer side of the fixing piece (21).

7. The anti-drop D-shaped buckle according to claim 1, characterized in that: A groove (22) is provided in the middle of the fixing column (4) and the fixing head (3), and a latch (23) is slidably connected in the groove (22).

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