A card connector

By using a snap-fit ​​female connector design and the combination of expansion sleeves and expansion plates, the environmental problems and short lifespan caused by glue fixation in furniture cabinet connections are solved, achieving a glue-free, strong and environmentally friendly connection effect.

CN224414070UActive Publication Date: 2026-06-26GUANGDONG WANGU IND TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG WANGU IND TECH CO LTD
Filing Date
2025-07-23
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

The use of glue to fix existing furniture cabinets has led to problems such as excessive formaldehyde levels, unpleasant glue odor, and short lifespan.

Method used

It adopts a snap-fit ​​female connector design, including the female connector body and the expansion sleeve. The expansion effect of the expansion piece achieves a glue-free connection, enhancing the firmness.

Benefits of technology

It achieves glue-free connections, improving the strength and lifespan of the connections, while avoiding the environmental problems caused by glue.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of furniture accessories discloses a clamping type female seat, including female seat body and the expansion sleeve of female seat body outside setting, female seat body upside is provided with the female and male buckle groove, the expansion sleeve is hollow, the expansion sleeve both ends inner wall is provided with the top block, the female seat body's outer wall with the female seat body of expansion sleeve inner wall top meets. This kind of clamping type female seat can install expansion sleeve in cabinet, by inserting female seat body in expansion sleeve, make expansion sleeve expansion, and the more compact combination of cabinet connecting place, prevent female seat body from cabinet door inside easy to come off, avoid the problem of not environmental protection and adhesive layer easy aging caused by using glue.
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Description

Technical Field

[0001] This utility model relates to the technical field of furniture accessories, specifically, a snap-fit ​​female seat. Background Technology

[0002] A female connector is a hardware accessory used in conjunction with a snap fastener to connect furniture cabinets. During cabinet installation, holes are drilled on opposite sides of the cabinets to be connected. The snap fastener and female connector are then inserted into these pre-drilled holes. Traditionally, glue is injected into the holes or applied to the outer wall of the female connector to bond them together. However, using glue can easily lead to excessive formaldehyde levels, and the odor of glue can be unpleasant. Furthermore, over time and due to environmental factors, the glue layer is prone to aging, resulting in a short lifespan. Utility Model Content

[0003] In order to overcome the defects of the existing technology, this utility model provides a snap-fit ​​female connector to solve the problems in the existing technology.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a snap-fit ​​female seat, including a female seat body and an expansion sleeve sleeved on the female seat body body. The upper side of the female seat body is provided with a male and female snap groove. The expansion sleeve is hollow. Top blocks are provided on the inner walls of both ends of the expansion sleeve. The outer wall of the female seat body is in contact with the inner wall of the expansion sleeve.

[0005] In the aforementioned snap-fit ​​female seat, an annular protrusion is provided on the upper side of the outer wall of the female seat body, and an annular groove corresponding to the annular protrusion is provided on the upper side of the inner wall of the expansion sleeve.

[0006] In the aforementioned snap-fit ​​female connector, the outer walls at both ends of the female connector body are provided with slots corresponding to the top block.

[0007] In the aforementioned snap-fit ​​female connector, the male and female fastening groove includes a first through groove and a second through groove. The diameter of the first through groove is larger than that of the second through groove. Two protruding blocks are provided on the upper part of the two opposite inner walls of the second through groove. The two protruding blocks are respectively provided with a first flared opening at both ends.

[0008] In the aforementioned snap-fit ​​female connector, one end of the male and female snap groove is provided with a connecting rod groove, the other end of the male and female snap groove is provided with an inclined surface, and the lower end of the inclined surface is provided with a snap head cavity located below the connecting rod groove.

[0009] In the aforementioned snap-fit ​​female connector, a second flared opening is provided on one end of the inner wall of the connecting rod groove near the inclined surface, and protruding retaining ribs are also provided on both sides of the inner wall of the connecting rod groove.

[0010] In the aforementioned snap-fit ​​female connector, expansion plates are provided at both ends of the expansion sleeve, the top of the expansion plate is fixedly connected to the top of the expansion sleeve, and gaps are provided on both sides of the expansion plate so that the lower part of the expansion plate can expand after the female connector body is inserted into the expansion sleeve.

[0011] In the aforementioned snap-fit ​​female connector, the thickness of the expansion piece in the middle is greater than the thickness at both ends.

[0012] In one of the snap-fit ​​female seats described above, barbs are provided on the outer wall of the expansion plate.

[0013] The beneficial effect of this utility model is that by embedding the expansion sleeve into the cabinet body and inserting the female body into the expansion sleeve, the bottom of the expansion sleeve expands, thereby increasing the firmness of the connection between the expansion sleeve and the cabinet body. It can be firmly connected without the use of glue, which is more environmentally friendly and has a longer service life. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the snap-fit ​​female connector in Embodiment 1.

[0015] Figure 2 This is an exploded view of the installation of the snap-fit ​​female connector in Example 1.

[0016] Figure 3 This is a three-dimensional structural diagram of the female body in Embodiment 1.

[0017] Figure 4 This is a three-dimensional structural diagram of the expansion sleeve of this utility model.

[0018] Figure 5 This is a top view of the expansion sleeve of this utility model.

[0019] Figure 6 This is a three-dimensional structural diagram of the snap-fit ​​female connector in Embodiment 2.

[0020] Figure 7 This is a three-dimensional structural diagram of the female body in Embodiment 2.

[0021] In the figure: 1. Female seat body; 2. Expansion sleeve; 3. Top block; 4. Annular protrusion; 5. Annular groove; 6. Slot; 7. First through groove; 8. Second through groove; 9. Stop block; 10. First flared mouth; 11. Connecting rod groove; 12. Inclined surface; 13. Head cavity; 14. Second flared mouth; 15. Strap; 16. Expansion piece; 17. Gap; 18. Barb. Detailed Implementation

[0022] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0023] Example 1

[0024] Combination Figures 1 to 5 The illustrated snap-fit ​​female connector includes a female connector body 1 and an expansion sleeve 2 fitted over the female connector body 1. The female connector body 1 has a snap-fit ​​groove on its upper side. The expansion sleeve is hollow. Top blocks 3 are provided on the inner walls of both ends of the expansion sleeve 2. The outer wall of the female connector body 1 abuts against the inner wall of the expansion sleeve 2. In this embodiment, the expansion sleeve is embedded into the cabinet body, and the female connector body is inserted into the expansion sleeve, causing the bottom of the expansion sleeve to expand, thereby increasing the firmness of the connection between the expansion sleeve and the cabinet body.

[0025] Specifically, in this embodiment, an annular protrusion 4 is provided on the upper side of the outer wall of the female body 1, and an annular groove 5 corresponding to the annular protrusion 4 is provided on the upper side of the inner wall of the expansion sleeve 2; the lower surface of the annular protrusion 4 and the upper surface of the annular groove are closely fitted, which facilitates better positioning and engagement of the female body with the expansion sleeve during installation and makes it less prone to displacement.

[0026] Preferably, in this embodiment, the outer walls at both ends of the female body 1 are provided with slots 6 corresponding to the top block 3; by inserting the top block 3 of the inner wall of the expansion sleeve 2 into the slots 6 at the corresponding positions on the outer wall of the female body 1, the expansion sleeve 2 and the female body 1 can be better connected together, increasing stability.

[0027] Specifically, the snap-fit ​​groove in this embodiment includes a through first groove 7 and a second groove 8. The diameter of the first groove 7 is larger than that of the second groove 8. Two protruding blocks 9 are provided on the upper part of the two opposite inner walls of the second groove 8. The two protruding blocks 9 are respectively provided with first flared openings 10 at both ends. By setting the snap-fit ​​groove with through grooves and blocks of different sizes, the contact area between the snap-fit ​​groove and the flat snap-fit ​​head can be larger during installation, and the connection can be more secure. The flared openings at both ends of the blocks can make it easier for the snap-fit ​​head to enter the snap-fit ​​groove during installation.

[0028] It is worth noting that expansion plates 16 are provided at both ends of the expansion sleeve 2 in this embodiment. The top of the expansion plate 16 is fixedly connected to the top of the expansion sleeve 2. The expansion plate 16 is provided with a gap 17 so that the lower part of the expansion plate 16 can expand after the female body 1 is inserted into the expansion sleeve 2. By providing expansion plates, the expansion effect can be increased.

[0029] Preferably, in this embodiment, the thickness of the expansion piece 16 in the middle is greater than the thickness at both ends. This setting can increase the expansion force and make the expansion piece easier to insert when the expansion sleeve is inserted into the cabinet, as the thickness of the lower part of the expansion piece is less than the thickness of the middle part, thus reducing the difficulty of installation.

[0030] It is worth noting that the expansion plate 16 in this embodiment is provided with barbs 18 on its outer wall, which further improves the stability of the connection between the expansion plate and the cabinet.

[0031] Example 2

[0032] Combination Figures 4 to 7 The illustrated snap-fit ​​female connector includes a female connector body 1 and an expansion sleeve 2 fitted over the female connector body 1. The female connector body 1 has a snap-fit ​​groove on its upper side. The expansion sleeve is hollow. Top blocks 3 are provided on the inner walls of both ends of the expansion sleeve 2. The outer wall of the female connector body 1 abuts against the inner wall of the expansion sleeve 2. In this embodiment, the expansion sleeve is embedded into the cabinet body, and the female connector body is inserted into the expansion sleeve, causing the bottom of the expansion sleeve to expand, thereby increasing the firmness of the connection between the expansion sleeve and the cabinet body.

[0033] Specifically, in this embodiment, an annular protrusion 4 is provided on the upper side of the outer wall of the female body 1, and an annular groove 5 corresponding to the annular protrusion 4 is provided on the upper side of the inner wall of the expansion sleeve 2; the lower surface of the annular protrusion 4 and the upper surface of the annular groove are closely fitted, which facilitates better positioning and engagement of the female body with the expansion sleeve during installation and makes it less prone to displacement.

[0034] Preferably, in this embodiment, one end of the snap fastener groove is provided with a connecting rod groove 11, and the other end of the snap fastener groove is provided with an inclined surface 12. The lower end of the inclined surface 12 is provided with a locking head cavity 13 located below the connecting rod groove 11. The inner walls of the connecting rod groove 11 are provided with a second flared opening 14 at the end near the inclined surface 12. The inner walls of the connecting rod groove 11 are also provided with protruding locking ribs 15. The locking head cavity is made into a circle, which can make the contact area between the snap fastener groove and the circular snap fastener head larger during installation, and the connection is more secure. During combined installation, the snap fastener slides into the snap fastener groove through the inclined surface. The flared opening can make it easier for the snap fastener to enter the snap fastener groove. The locking ribs can make it less likely for the snap fastener to fall out of the snap fastener groove.

[0035] It is worth noting that the expansion sleeve 2 in this embodiment is provided with expansion plates 16 at both ends. The top of the expansion plate 16 is connected to the top of the expansion sleeve 2. The expansion plate 16 is provided with gaps 17 on both sides so that the lower part of the expansion plate 16 can expand after the female body 1 is inserted into the expansion sleeve 2. By providing expansion plates, the expansion effect can be increased.

[0036] Preferably, in this embodiment, the thickness of the expansion piece 16 in the middle is greater than the thickness at both ends. This setting can increase the expansion force and make the expansion piece easier to insert when the expansion sleeve is inserted into the cabinet, as the thickness of the lower part of the expansion piece is less than the thickness of the middle part, thus reducing the difficulty of installation.

[0037] It is worth noting that the expansion plate 16 in this embodiment is provided with barbs 18 on its outer wall, which further improves the stability of the connection between the expansion plate and the cabinet.

[0038] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.

Claims

1. A snap-fit ​​female connector, characterized in that: It includes a female body (1) and an expansion sleeve (2) fitted outside the female body (1). The female body (1) has a male and female fastening groove on its upper side. The expansion sleeve (2) is hollow. Top blocks (3) are provided on the inner walls of both ends of the expansion sleeve (2). The outer wall of the female body (1) is in contact with the inner wall of the expansion sleeve (2).

2. The snap-fit ​​female connector according to claim 1, characterized in that: The outer wall of the female body (1) is provided with an annular protrusion (4), and the inner wall of the expansion sleeve (2) is provided with an annular groove (5) corresponding to the annular protrusion (4).

3. A snap-fit ​​female connector according to claim 1, characterized in that: The outer walls at both ends of the female body (1) are provided with slots (6) corresponding to the top block (3).

4. A snap-fit ​​female connector according to claim 1, characterized in that: The male and female fastening groove includes a through first groove (7) and a second groove (8). The diameter of the first groove (7) is larger than that of the second groove (8). The upper part of the two opposite inner walls of the second groove (8) is provided with two protruding blocks (9). The two protruding blocks (9) are respectively provided with a first flared mouth (10) at both ends.

5. A snap-fit ​​female connector according to claim 1, characterized in that: One end of the male-female buckle groove is provided with a connecting rod groove (11), and the other end of the male-female buckle groove is provided with an inclined surface (12). The lower end of the inclined surface (12) is provided with a locking head cavity (13) located below the connecting rod groove (11).

6. A snap-fit ​​female connector according to claim 5, characterized in that: The inner wall of the connecting rod groove (11) is provided with a second flared mouth (14) at one end near the inclined surface (12), and the inner wall of the connecting rod groove (11) is also provided with protruding retaining ribs (15).

7. A snap-fit ​​female connector according to claim 1, characterized in that: The expansion sleeve (2) is provided with expansion plates (16) at both ends. The top of the expansion plate (16) is fixedly connected to the top of the expansion sleeve (2). The expansion plate (16) has gaps (17) on both sides so that the lower part of the expansion plate (16) can expand after the female body (1) is inserted into the expansion sleeve (2).

8. A snap-fit ​​female connector according to claim 7, characterized in that: The thickness of the middle part of the expansion sheet (16) is greater than the thickness of the two ends.

9. A snap-fit ​​female connector according to claim 7, characterized in that: The expansion plate (16) has barbs (18) on its outer wall.