Encircling-shaped buckle structure with curved surface contact

Abstract

The utility model discloses a curved surface contact embracing type buckle structure, which comprises a clamping tongue main body, the clamping tongue main body comprises a first seat body, a first clamping tongue and a second clamping tongue, the first clamping tongue and the second clamping tongue are arranged on the first seat body, a bayonet is formed at the end part between the first clamping tongue and the second clamping tongue, and a first clamping groove is formed in the opposite side of the first clamping tongue and / or the second clamping tongue; the first clamping tongue and / or the second clamping tongue located at the bayonet are / is provided with an inclined face communicated with the first clamping groove, and the straight outer caliber of the bayonet is increased through the arrangement of the inclined face. According to the utility model, the structure is simple, the contact surface between the first clamping groove and the clamping piece is the cambered surface, the fastening connection is realized, and as the first clamping tongue and the second clamping tongue form the arc-shaped structure, an effective locking force is still provided during repeated disassembly and assembly, and the matching firmness can be adjusted according to the axial lengths of the clamping tongues and the clamping piece.

Description

Technical Field

[0001] The utility model discloses a detachable installation structure, which specifically relates to an embracing buckle structure with curved surface contact. Background Art

[0002] In the existing lamp installation structure, it is composed of two or more structures that cooperate with each other to fasten the connection, avoid the use of screws or other forms of assembly, reduce costs, and facilitate disassembly and assembly. The most commonly used snap-on method is as follows Figure 1 As shown, the mating surfaces of the two are flat, which will result in a significant decrease in the clamping force after repeated disassembly and assembly, and effective fixation cannot be guaranteed. The design of the buckle elastic wall requires a suitable height. If it is too low, it will not be able to bounce open and the disassembly and assembly force will increase. If it is too high, the elastic force will be weakened and it will not be able to be clamped into place. The interference fit surface between the buckles is affected by the elastic deformation and the accurate contact area cannot be guaranteed, resulting in inability to disassemble or insufficient clamping force. Therefore, it is very important to obtain an embracing buckle structure with curved surface contact that overcomes the above defects. Utility Model Content

[0003] In order to solve at least one of the above-mentioned technical problems, the utility model provides an embracing buckle structure with curved surface contact, including a tongue body, wherein the tongue body includes a first base body and a first tongue and a second tongue arranged on the first base body, and the end between the first tongue and the second tongue forms a bayonet, and a first slot is provided on the opposite side of the first tongue and / or the second tongue; an inclined surface is provided on the first tongue and / or the second tongue located at the bayonet, and the inclined surface is arranged so that the diameter of the bayonet gradually increases from the inner diameter to the outer diameter.

[0004] The first latch tongue and the second latch tongue are symmetrically arranged.

[0005] The first card slot is a curved surface.

[0006] An inner concave connecting arc surface is provided on the outer wall of the first latch tongue and / or the second latch tongue, and the connecting arc surface is located between the first seat body and the first latch groove.

[0007] A rectangular groove is formed between the first latch tongue, the second latch tongue and the first seat body.

[0008] The card base also includes a second base body and a card member disposed on the second base body and matched with the first card slot. The first card slots are provided with two and are symmetrically arranged. After the card base is inserted into the card tongue body, the first card tongue and the second card tongue embrace the card member. The card base and the card tongue body have an interference fit of 0.1 mm.

[0009] Compared with the prior art, the advantages of the utility model are: the utility model has a simple structure, the contact surface between the first card slot and the card part is an arc surface, which realizes a tight connection, and because the first card tongue and the second card tongue form an arc structure, they still have an effective locking force when repeatedly disassembled and assembled, and the fit firmness can be adjusted according to the axial length of the card tongue and the card part. That is, the first card tongue and the second card tongue embrace the card part, and after being snapped into place, the card tongues on both sides clamp the card part, and the card tongue and the card part are in curved surface contact, which improves the stability after fixation. The installation is carried out by elastic deformation of the two tongue pieces. After being assembled in place, the two tongue pieces wrap the card part to realize the snap fit between the parts, curved surface contact, multiple restricted directions, and high reliability. The utility model has good structural rigidity, the appearance is not easy to shrink, and the fit is tight. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a three-dimensional diagram of the main body of the latch of the utility model;

[0011] Figure 2 It is a side view of the main body of the latch tongue of the utility model;

[0012] Figure 3 It is a three-dimensional diagram of the card holder of the utility model;

[0013] Figure 4 It is a side view of the matching structure of the utility model;

[0014] Reference numerals:

[0015] 1 tongue body; 101 first seat body; 102 first tongue; 103 second tongue; 104 bayonet; 105 first slot; 106 inclined surface; 107 connecting arc surface; 108 rectangular slot;

[0016] 2 card seat; 201 second seat body; 202 card piece. DETAILED DESCRIPTION

[0017] In order to enable those skilled in the art to better understand the present invention and to more clearly define the scope of protection claimed by the present invention, the present invention is described in detail below with respect to certain specific embodiments of the present invention. It should be noted that the following are only certain specific implementation methods of the present invention, which are only part of the embodiments of the present invention, and the specific and direct description of the relevant structures is only for the convenience of understanding the present invention, and the specific features do not naturally and directly limit the scope of implementation of the present invention.

[0018] Referring to the accompanying drawings, the utility model adopts the following technical scheme: an embracing buckle structure with curved surface contact, comprising a tongue body 1, wherein the tongue body 1 comprises a first base body 101 and a first tongue 102 and a second tongue 103 arranged on the first base body 101, a bayonet 104 is formed at the end between the first tongue 102 and the second tongue 103, and a first slot 105 is arranged on the opposite side of the first tongue 102 and / or the second tongue 103; an inclined surface 106 is arranged on the first tongue 102 and / or the second tongue 103 at the bayonet 104, and the arrangement of the inclined surface 106 makes the diameter of the bayonet 104 gradually increase from the inner diameter to the outer diameter.

[0019] In this embodiment, the first latching tongue and the second latching tongue are both provided with first latching grooves, and are symmetrically arranged.

[0020] The first latch tongue 102 and the second latch tongue 103 are symmetrically arranged.

[0021] The first slot 105 is a curved surface.

[0022] An inner concave connection arc surface 107 is formed on the outer wall of the first latch tongue 102 and / or the second latch tongue 103 . The connection arc surface 107 is located between the first seat body 101 and the first latch slot 105 .

[0023] In this embodiment, connecting arc surfaces are both provided on the outer walls of the first latching tongue and the second latching tongue, and are symmetrical.

[0024] A rectangular groove 108 is formed between the first latch tongue 102 , the second latch tongue 103 and the first base 101 .

[0025] It also includes a card base 2, which includes a second base body 201 and a card member 202 arranged on the second base body 201 and matched with the first card slot 105. The outer wall of the card member 202 is a curved surface that matches the arc surface of the first card slot 105. The first card slot 105 is provided with two and symmetrically arranged. After the card base 2 is inserted into the card tongue body 1, the first card tongue 102 and the second card tongue 103 embrace the card member 202. The card base 2 and the card tongue body 1 have an interference fit of 0.1mm. The distance between the first card slots 105 on the first card tongue 102 and the second card tongue 103 is slightly larger than the width of the card member 202, for example, larger than 0.1mm, so that the first card tongue 102 and the second card tongue 103 are slightly opened, and there is elasticity between them to embrace the card member 202.

[0026] The above-mentioned tongue body 1 is integrally formed, and the holder 2 is integrally formed.

[0027] Compared with the prior art, the utility model has the following advantages: the utility model has a simple structure, the contact surface between the first card slot 105 and the card 202 is an arc surface, and a fastening connection is achieved. Moreover, since the first card tongue 102 and the second card tongue 103 form an arc structure, they still have an effective locking force when repeatedly disassembled and assembled, and the matching firmness can be adjusted according to the axial length of the card tongue and the card 202. That is, the first card tongue 102 and the second card tongue 103 embrace the card 202, and after being snapped into place, the card tongues on both sides clamp the card 202, and the card tongue and the card 202 are in curved surface contact, which improves the stability after fixation. The installation is carried out by elastic deformation of the two tongues. After being assembled in place, the two tongues wrap the card 202, and the snap-fitting between the parts is achieved, the curved surface is in contact, the direction is restricted in many ways, and the reliability is high. The utility model has good structural rigidity, the appearance is not easy to shrink, and the matching is tight.

[0028] When the utility model is put into use, the tongue body 1 can be fixed to an installation position such as a wall, and the socket 2 can be fixed to the lamp, and then the socket 2 and the tongue body 1 can be matched to achieve a snap connection.

[0029] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A curved surface contact embracing buckle structure, comprising a tongue body (1), the tongue body (1) comprising a first base (101) and a first tongue (102) and a second tongue (103) arranged on the first base (101), a bayonet (104) being formed at the end between the first tongue (102) and the second tongue (103), and a first slot (105) being provided on the opposite side of the first tongue (102) and / or the second tongue (103); characterized in that: The first latch tongue (102) and / or the second latch tongue (103) located at the bayonet (104) are provided with an inclined surface (106), and the inclined surface (106) is arranged so that the caliber of the bayonet (104) gradually increases from the inner caliber to the outer caliber.

2. The curved surface contact embracing buckle structure according to claim 1, characterized in that: The first latch tongue (102) and the second latch tongue (103) are symmetrically arranged.

3. The curved surface contact embracing buckle structure according to claim 1, characterized in that: The first card slot (105) is a curved surface.

4. The curved surface contact embracing buckle structure according to claim 1, characterized in that: An inner concave connecting arc surface (107) is provided on the outer wall of the first latch tongue (102) and / or the second latch tongue (103).

5. The curved surface contact embracing buckle structure according to claim 4, characterized in that: The connecting arc surface (107) is located between the first seat body (101) and the first clamping groove (105).

6. The curved surface contact embracing buckle structure according to claim 1, characterized in that: A rectangular groove (108) is formed between the first latch tongue (102), the second latch tongue (103) and the first seat body (101).

7. The curved surface contact embracing buckle structure according to claim 1, characterized in that: It also comprises a card seat (2), wherein the card seat (2) comprises a second seat body (201) and a card member (202) arranged on the second seat body (201) and cooperating with the first card slot (105).

8. The curved surface contact embracing buckle structure according to claim 7, characterized in that: Two first card slots (105) are provided and are symmetrically arranged. After the card seat (2) is inserted into the card tongue body (1), the first card tongue (102) and the second card tongue (103) embrace the card member (202) so that the curved surfaces of the two are in contact.

9. The curved surface contact embracing buckle structure according to claim 8, characterized in that: The clamping seat (2) and the clamping tongue body (1) have an interference fit of 0.1 mm.

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