CN209838852U

CN209838852U - Housing with snap connection

Info

Publication number: CN209838852U
Application number: CN201920419648.0U
Authority: CN
Inventors: 刘仁淦; 崔长将
Original assignee: Cambridge Industries Shanghai Co Ltd; Zhejiang Cambridge Electronic Technology Co Ltd
Current assignee: CIG Shanghai Co Ltd
Priority date: 2019-03-29
Filing date: 2019-03-29
Publication date: 2019-12-24
Anticipated expiration: 2029-03-29

Abstract

The utility model provides a casing with buckle is connected, it including: go up casing and lower casing, go up the casing with lower casing can cover each other and close. The inner side of the lower shell is provided with a clamping tongue, the clamping tongue is provided with an abutting surface, the inner side of the upper shell is provided with a clamping part, the clamping part is provided with a clamping hole, the inner wall of the clamping hole facing the upper shell is a clamping surface, and one end, far away from the upper shell, of the clamping part is provided with a guide surface used for guiding the clamping tongue to enter the clamping hole. When the upper shell and the lower shell are closed, the clamping tongue is clamped in the clamping hole, and the abutting surface abuts against the clamping surface. The guide surface on the buckle piece can play a role in guiding the clamping tongue in the process of mutually covering the upper shell and the lower shell, and the clamping tongue and the buckle piece are prevented from being extruded forcibly to damage the buckle piece.

Description

Housing with snap connection

Technical Field

The utility model relates to a casing with buckle is connected.

Background

Generally, the upper and lower connecting shells are connected by using a single-sheet door-shaped buckle, and when the upper shell and the lower shell are fastened, the middle of the single-sheet door-shaped buckle is easy to break. The main reasons for this are: firstly, the strength of the single-sheet door-shaped buckle structure is low, and the single-sheet door-shaped buckle structure is greatly deformed and broken by being forcibly extruded by the clamping tongue on the lower shell in the process of fastening the upper shell and the lower shell; secondly, door type buckle is product joint line department in the middle of when injection moulding, and weak point in the structure is consequently easy fracture.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a difficult cracked casing of buckle structure in order to overcome the easy cracked defect of buckle structure among the prior art casing.

The utility model discloses an above-mentioned technical problem is solved through following technical scheme:

the utility model provides a casing with buckle is connected which characterized in that, it is including: the upper shell and the lower shell can be mutually covered;

the inner side of the lower shell is provided with a clamping tongue, and the clamping tongue is provided with an abutting surface;

the inner side of the upper shell is provided with a buckling piece, the buckling piece is provided with a buckling hole, the inner wall of the buckling hole facing the upper shell is a buckling surface, and one end of the buckling piece far away from the upper shell is provided with a guide surface for guiding the clamping tongue to enter the buckling hole;

when the upper shell and the lower shell are closed, the clamping tongue is clamped in the clamping hole, and the abutting surface abuts against the clamping surface.

Preferably, the guide surface is provided with a process groove.

Preferably, one end of the latch, which is far away from the lower shell, is provided with a guide surface, and the guide surface is opposite to the orientation of the guide surface.

Preferably, the guide surface and the guide surface are parallel to each other.

Preferably, the edge of the upper shell is provided with an outer step, the edge of the lower shell is provided with an inner step, and the inner step and the outer step are matched with each other.

Preferably, the inner side of the lower shell is further provided with a limiting member, the limiting member faces the latch, and the fastener can be inserted between the limiting member and the latch.

On the basis of the common knowledge in the field, the above preferred conditions can be combined at will to obtain the preferred embodiments of the present invention.

The utility model discloses an actively advance the effect and lie in: the guide surface on the buckle piece can play a role in guiding the clamping tongue in the process of mutually covering the upper shell and the lower shell, and the clamping tongue and the buckle piece are prevented from being extruded forcibly to damage the buckle piece.

Drawings

Fig. 1 is a schematic perspective view of a housing with a snap connection according to a preferred embodiment of the present invention.

Fig. 2 is a schematic perspective view of an upper housing according to a preferred embodiment of the present invention.

Fig. 3 is an enlarged view of a portion a of fig. 2.

Fig. 4 is a schematic perspective view of a lower housing according to a preferred embodiment of the present invention.

Fig. 5 is an enlarged view of a portion B of fig. 4.

Fig. 6 is a schematic top view of the housing with snap connection according to the preferred embodiment of the present invention.

Fig. 7 is a schematic cross-sectional view at the position C-C in fig. 6.

Fig. 8 is an enlarged view of a portion D of fig. 7.

Description of reference numerals:

upper case 100

Fastener 110

Fastening hole 111

Snap surface 112

Guide surface 113

Process tank 114

Outer step 120

Lower case 200

Latch 210

Contact surface 211

Guide surface 212

Inner step 220

Position limiting member 230

Detailed Description

The present invention will be more clearly and completely described below with reference to the accompanying drawings.

Fig. 1-5 show a housing with a snap connection, comprising: an upper case 100 and a lower case 200, and the upper case 100 and the lower case 200 can be closed with each other. The inner side of the lower housing 200 has a latch 210, the latch 210 has an abutting surface 211, the inner side of the upper housing 100 has a locking member 110, the locking member 110 has a locking hole 111, the inner wall of the locking hole 111 facing the upper housing 100 is a locking surface 112, and one end of the locking member 110 away from the upper housing 100 is provided with a guide surface 113 for guiding the latch 210 to enter the locking hole 111. When the upper housing 100 and the lower housing 200 are closed, the latch 210 is engaged in the latch hole 111, and the contact surface 211 contacts the latch surface 112.

As will be understood from fig. 6 to 8, in the present embodiment, when the upper housing 100 and the lower housing 200 are covered with each other, one end of the latch 210 abuts against the guide surface 113, and under the external force, the latch 110 and the latch 210 both generate a certain deformation, one end of the latch 210 moves along the guide surface 113 toward the direction close to the latch hole 111, and then slides into the latch hole 111, at this time, the deformation of the latch 110 and the latch 210 is recovered, the abutting surface 211 abuts against the latch surface 112, and the latch 210 and the latch 110 are locked with each other. The guide surface 113 on the fastener 110 can play a good guiding role for the latch 210 in the process of covering the upper shell 100 and the lower shell 200 with each other, so that the latch 210 and the fastener 110 are prevented from being forcibly extruded to break the fastener 110. In addition, to ensure that the guide surface 113 can perform a better guiding function, it is necessary to ensure that the guide surface 113 has a certain guiding length, and the end portion of the fastener 110 having a longer guiding length has higher structural strength, so as to ensure that the fastener cannot be easily broken.

In order to prevent the fastener 110 from being deformed greatly during the injection molding process, the guide surface 113 is provided with a process groove 114. In this embodiment, the number of the process grooves 114 is two, and the two process grooves 114 are respectively opened at two sides of the sliding direction of the latch 210.

In order to further improve the guiding function between the latch 210 and the locking member 110, a guiding surface 212 is provided at an end of the latch 210 away from the lower housing 200, and the guiding surface 212 is opposite to the guiding surface 113. In the present embodiment, the guide surface 212 and the guide surface 113 are parallel to each other. The guide surface 212 and the guide surface 113 which are parallel to each other can make the contact area larger when the two slide relatively, thereby reducing the pressure applied on the snap member 110, and avoiding the snap member 110 from being broken due to excessive local pressure.

In addition, the edge of the upper shell 100 is provided with an outer step 120, the edge of the lower shell 200 is provided with an inner step 220, and the inner step 220 and the outer step 120 are matched with each other, so that the upper shell 100 and the lower shell 200 can be accurately aligned and covered, and meanwhile, the assembly efficiency of the upper shell 100 and the lower shell 200 is improved.

In this embodiment, a limiting member 230 is further disposed on the inner side of the lower housing 200, the limiting member 230 is opposite to the latch 210, and the fastening member 110 can be inserted between the limiting member 230 and the latch 210. A limiting space is formed between the limiting member 230 and the latch 210 for being clamped into the locking element 110, so that the position accuracy of the latch 210 connected with the locking element 110 is improved. In addition, the limiting member 230 can abut against the locking member 110 in the process of relative sliding between the latch 210 and the locking member 110, so as to limit the deformation of the locking member 110, thereby preventing the locking member from being broken due to excessive deformation.

Although specific embodiments of the present invention have been described above, it will be understood by those skilled in the art that this is by way of example only and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and the principles of the present invention, and these changes and modifications are all within the scope of the present invention.

Claims

1. A shell with a snap connection is characterized in that the shell comprises: the upper shell and the lower shell can be mutually covered;

2. The housing with snap fit connection of claim 1, wherein the guide surface has a process groove.

3. A housing with a snap connection according to claim 1, characterized in that the end of the latch remote from the lower housing is provided with a guide surface, which is directed opposite to the guide surface.

4. A housing with a snap connection according to claim 3, characterized in that the guide surface and the guide surface are parallel to each other.

5. The housing with snap connection as claimed in claim 1, wherein the edge of the upper housing is provided with an outer step and the edge of the lower housing is provided with an inner step, the inner step and the outer step are adapted to each other.

6. The casing with the snap-fit connection according to claim 1, wherein a limiting member is further disposed on an inner side of the lower casing, the limiting member faces the latch, and the snap-fit member can be inserted between the limiting member and the latch.