CN210607049U

CN210607049U - Key group mounting structure

Info

Publication number: CN210607049U
Application number: CN201921815371.XU
Authority: CN
Inventors: 余华喜; 余华明; 杨青
Original assignee: Xiamen Shanrunfeng Industry And Trade Co Ltd
Current assignee: Xiamen Shanrunfeng Industry And Trade Co Ltd
Priority date: 2019-10-25
Filing date: 2019-10-25
Publication date: 2020-05-22
Anticipated expiration: 2029-10-25

Abstract

The utility model discloses a key set mounting structure relates to button technical field, has solved button and silica gel pad and has bonded the higher and not convenient for technical problem who changes of cost together. The technical key points are as follows: the utility model provides a key set mounting structure, includes silica gel piece and a plurality of button, and the interval is provided with the recess that a plurality of is used for installing the button on the silica gel piece, and the back of button sets up the card post of pegging graft in the recess, and its axis of the inner wall ring of recess is provided with the draw-in groove, and the outer wall of card post is provided with the fixture block of joint in the draw-in groove, and the recess inner wall is provided with the locating piece along its direction of height, is provided with the constant head tank of mutually supporting with the locating piece. The utility model has the advantages of be convenient for install fast and change, practice thrift the cost each button.

Description

Key group mounting structure

Technical Field

The utility model relates to a button technical field, more specifically say, it relates to a press key group mounting structure.

Background

At present, a number key made of metal materials is installed on some door locks, and unlocking is performed by pressing the number key to input a corresponding password.

The Chinese patent with the publication number of CN206833544U discloses an access card reader, which comprises a front cover and a rear cover, wherein a mounting plate is arranged behind the rear cover, the mounting plate is fixed on a wall body through screws, an inner circuit board is arranged between the front cover and the rear cover, ZIGEE and WIFI modes are arranged in the inner circuit board, an antenna slurry plate is arranged on the side part of the inner circuit board, a key board is arranged on the front part of the inner circuit board, silicone rubber pads are arranged on the front end surface of the key board, the number of the silicone rubber pads is nine, keys are arranged on the silicone rubber pads, and the keys penetrate through key grooves of the front cover to be mounted.

Similar to the above-mentioned access card reader in the prior art, a key set composed of a key board, a silicone rubber pad and keys is generally installed in the access card reader. However, most of the existing silicone rubber pads are arranged separately from the key board, a plurality of silicone rubber pads are connected into a whole through a silicone sheet, then the keys made of metal materials are bonded on the silicone rubber pads corresponding to each other through glue, and before bonding, a layer of protective glue is coated on the silicone rubber pads for cleaning, so that the cost is high; and when the keys are abraded after being bonded, the keys are difficult to take down from the silica gel sheet for replacement, so that the whole key group is easy to waste, and the improvement is needed.

SUMMERY OF THE UTILITY MODEL

To current technical problem, the utility model aims to provide a press key group mounting structure, it has and is convenient for install fast and change each button, practices thrift the advantage of cost.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a key set mounting structure, includes silica gel piece and a plurality of button, the interval is provided with the recess that a plurality of is used for installing the button on the silica gel piece, the back of button sets up the card post of pegging graft in the recess, its axis of the inner wall ring of recess is provided with the draw-in groove, the outer wall of card post is provided with the fixture block of joint in the draw-in groove, the recess inner wall is provided with the locating piece along its direction of height, be provided with the constant head tank of mutually supporting with the locating piece along its length direction on the card post.

By adopting the technical scheme, the clamping column on the back of the key can be inserted into the groove by arranging the groove, the silica gel sheet has certain elastic deformation capacity, the clamping column can be inserted to the bottom of the groove, the clamping block is clamped in the clamping groove, the key and the silica gel sheet can be quickly clamped and fixed, and the key can be detached from the silica gel sheet by enough external force; because the keys are provided with numbers, letters and the like, and the positioning block is matched with the positioning groove, the positioning groove is inserted into the groove along the positioning column during installation, so that the accurate installation of the key position can be realized, and the keys can be prevented from rotating; if the individual keys are worn or damaged, the keys can be quickly replaced, the waste of the whole key group is avoided, and the effects of facilitating installation and replacement of the keys and saving cost are achieved.

The utility model discloses further set up to: the one side that the recess open-ended was kept away from to the silica gel piece is provided with the annular that is located around the recess inner wall, the annular sets up with the recess is coaxial, just the bottom of recess extends the silica gel piece and keeps away from the one side of recess open-ended.

Through adopting above-mentioned technical scheme, with the button joint back on the silica gel piece and when pressing the button, can reduce the influence of each button to button on every side through the annular, and the bottom of recess extends the silica gel piece and keeps away from the open-ended one side of recess for can better drive the silica gel piece portion and the circuit board contact of this button bottom when pressing the button, realize the input.

The utility model discloses further set up to: the silica gel piece is located the opening edge of recess and is provided with the boss, the back of button is located and extends around the card post and has the protruding edge of laminating with the boss upper surface.

Through adopting above-mentioned technical scheme, through the cooperation that sets up boss and protruding edge, can reduce the thickness of silica gel piece when guaranteeing groove depth and silica gel piece intensity, save the material of making the silica gel piece, practice thrift the cost.

The utility model discloses further set up to: the cross sections of the clamping blocks and the clamping grooves are arc-shaped.

Through adopting above-mentioned technical scheme, through setting up the cooperation of the draw-in groove that the transversal arc form of personally submitting and fixture block, the fixture block that can be convenient for gets into and the joint in the draw-in groove.

The utility model discloses further set up to: the cross section of recess and card post is circular setting, card post and recess interference fit.

Through adopting above-mentioned technical scheme, through setting up the card post and the recess that the cross section personally submits circular setting, and card post and recess interference fit, can realize blocking closely cooperating of post and recess, improve the joint strength of button and silica gel piece.

The utility model discloses further set up to: the positioning blocks are arranged in two pieces and are arranged along the diameter direction of the groove, and the distance between the two positioning blocks and the axis of the groove is different.

Through adopting above-mentioned technical scheme, through setting up two locating pieces that set up along the circular slot, can improve the locating piece to the spacing effect of card post, prevent that the button from taking place to rotate, and the distance variation of two locating pieces to the recess axis, position when can guaranteeing the button and inserting the recess is accurate.

The utility model discloses further set up to: and the silica gel sheet is provided with a plurality of material reducing holes.

Through adopting above-mentioned technical scheme, through setting up the material reducing hole, can reduce the used raw materials of production silica gel piece in the condition of guaranteeing silica gel piece intensity, reach the effect of practicing thrift the cost.

The utility model discloses further set up to: the handing-over department of the terminal surface of card post and lateral wall is provided with the chamfer angle, the inner wall of constant head tank also is provided with the chamfer angle with the terminal surface handing-over department of card post.

Through adopting above-mentioned technical scheme, because card post and recess clearance fit have the guide effect through setting up chamfer angle portion, can be convenient for insert the recess fast with the tip of card post along chamfer angle portion.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the keys can be arranged on the silica gel sheet in a clamping manner by arranging the matching among the groove, the clamping column, the positioning block and the positioning groove, the keys can be prevented from rotating in the groove by the matching between the positioning block and the positioning groove, the accuracy of the positions of the keys arranged in the groove can be ensured, the keys can be conveniently arranged and replaced, and the cost is saved;

(2) the ring groove is arranged, and the bottom of the groove extends out of one surface of the silica gel sheet, which is far away from the opening of the groove, so that the effect of reducing the influence of the silica gel sheet on surrounding keys when the keys are pressed is achieved;

(3) through the cooperation that sets up boss and protruding edge, can reduce the thickness setting of silica gel piece under the degree of depth and the condition of silica gel piece intensity of guaranteeing the recess, and through setting up the material reducing hole, play the raw materials that reduce the preparation silica gel piece, reach the effect of practicing thrift the cost.

Drawings

Fig. 1 is a schematic structural diagram of a key set according to an embodiment of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

fig. 3 is a schematic structural diagram of a key set according to an embodiment of the present invention.

Reference numerals: 1. a silica gel sheet; 2. pressing a key; 3. a groove; 4. clamping the column; 5. a card slot; 6. a clamping block; 7. positioning blocks; 8. positioning a groove; 9. a boss; 10. a convex edge; 11. a material reducing hole; 12. and a ring groove.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and examples.

In the embodiment, a key group installation structure is shown by combining fig. 1 and fig. 2, and comprises a silicon sheet 1 and a plurality of keys 2 with numbers or letters and the like on the upper surface, wherein the key group can be sleeved on an upper cover from the back of the upper cover, the silicon sheet 1 is provided with a plurality of grooves 3 at intervals and at equal intervals for installing the keys 2, and the back of the keys 2 is fixed with clamping columns 4 inserted in the grooves 3; and the inner wall of the groove 3 is provided with a clamping groove 5 along the axis thereof, the outer wall of the clamping column 4 is fixed with a clamping block 6 clamped in the clamping groove 5, the inner wall of the groove 3 is integrally formed with a positioning block 7 along the height direction thereof, and the clamping column 4 is provided with a positioning groove 8 matched with the positioning block 7 along the length direction thereof.

When the key 2 is fixed on the silica gel sheet 1, the clamping column 4 on the key 2 can be downwards inserted into the groove 3 along the position where the positioning column is matched with the positioning groove 8, after the clamping column 4 is completely inserted into the groove 3, the clamping block 6 can be clamped into the clamping groove 5 at the moment, the key 2 is limited to be separated from the groove 3, and the key 2 can be pulled out of the groove 3 through a certain external force, so that the key 2 and the silica gel sheet 1 can be quickly clamped and fixed, and the replacement is convenient; the positioning block 7 can prevent the key 2 from rotating after being mounted on the silica gel sheet 1, and can also ensure the position accuracy of the key 2 mounted in the groove 3; and then realize installing fast and changing each button 2, avoid a button 2 to damage and cause scrapping of whole key group, reach the effect of practicing thrift the cost.

The cross sections of the groove 3 and the clamping column 4 are arranged in a circular shape, and the clamping column 4 is in interference fit with the groove 3, so that the connection strength of the key 2 and the silica gel sheet 1 can be improved; and the cross section of the clamping block 6 and the clamping groove 5 is arc-shaped, so that when the clamping column 4 is inserted into the groove 3, the clamping block 6 can be conveniently and quickly clamped with the clamping groove 5, and the key 2 can be conveniently pulled out of the groove 3 during disassembly.

A boss 9 is integrally formed at the edge of the opening of the silicon sheet 1, which is positioned in the groove 3, a convex edge 10 extends around the clamping column 4 at the back of the key 2, and when the key 2 is clamped in the groove 3, the lower surface of the convex edge 10 is attached to the upper surface of the boss 9; wherein, boss 9 can guarantee that recess 3 has sufficient degree of depth, and when guaranteeing that silicon sheet 1 has sufficient intensity, reduces the thickness setting of silicon sheet 1, and then reduces the raw materials for production when making silicon sheet 1, and has seted up a plurality of on silicon sheet 1 and has subtracted material hole 11, can further reduce the use of raw materials to reach the effect of practicing thrift the cost.

As shown in fig. 2, two positioning blocks 7 are arranged on the inner wall of the groove 3, the two positioning blocks 7 are arranged along the diameter direction of the groove 3, and the distances between the two positioning blocks 7 and the axis of the groove 3 are different; wherein, two locating pieces 7 can further improve the restriction effect of locating piece 7 to the button 2 pivoted, and the locating piece 7 of equidimension not cooperates with constant head tank 8, also can prevent the position dress of button 2 from turning over.

The handing-over department of the terminal surface of card post 4 and lateral wall is provided with the chamfer angle, and the inner wall of constant head tank 8 also is provided with the chamfer angle with the terminal surface handing-over department of card post 4, can be convenient for card post 4 along chamfer angle position quick insertion diameter be less than in the recess 3 of card post 4.

Referring to fig. 1 and 3, a ring groove 12 is formed around the inner wall of each groove 3 on the surface of the silicone sheet 1 away from the opening of the groove 3, the ring groove 12 and the groove 3 are coaxially arranged, and the bottom of the groove 3 extends out of the surface of the silicone sheet 1 away from the opening of the groove 3; when the key 2 is pressed, the part of the groove 3 protruding out of the lower surface of the silicon sheet 1 can be conveniently contacted with the circuit board, and the ring groove 12 can reduce the influence of the pressed key 2 on the surrounding silicon sheet 1 and the groove 3.

The utility model discloses a working process and beneficial effect as follows:

during installation, the clamping column 4 on the key 2 is inserted into the groove 3 along the matching direction of the two positioning blocks 7 with different sizes and the positioning groove 8, when the clamping column 4 is completely inserted into the groove 3, the clamping block 6 on the outer wall of the clamping column 4 can be clamped in the clamping groove 5 on the inner wall of the groove 3, so that the key 2 and the silicon sheet 1 are quickly clamped and fixed, the key 2 is pulled out by a certain external force during disassembly, the keys 2 are quickly installed and replaced, the scrapping of the whole key set caused by the damage of one key 2 is avoided, and the effect of saving the cost is achieved; the positioning block 7 can limit the rotation of the key 2 after installation, and can play a role in positioning, so that the accuracy of the installation positions of the key 2 and the groove 3 is ensured; and through setting up boss 9 and subtract material hole 11, can reduce the thickness setting of silica gel piece 1, reduce the raw materials for production of silica gel piece 1, further reach the effect of practicing thrift the cost.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a press key group mounting structure, includes silica gel piece (1) and a plurality of button (2), its characterized in that: the utility model discloses a silica gel piece, including silica gel piece (1), the interval is provided with recess (3) that a plurality of is used for installing button (2), the back of button (2) sets up the card post (4) of pegging graft in recess (3), its axis of inner wall ring of recess (3) is provided with draw-in groove (5), the outer wall of card post (4) is provided with fixture block (6) of joint in draw-in groove (5), recess (3) inner wall is provided with locating piece (7) along its direction of height, be provided with constant head tank (8) of mutually supporting with locating piece (7) along its length direction on card post (4).

2. A key group mounting structure according to claim 1, wherein: the silica gel piece (1) is kept away from recess (3) open-ended one side and is provided with annular (12) that are located around recess (3) inner wall, annular (12) and recess (3) coaxial setting, just the bottom of recess (3) extends silica gel piece (1) and keeps away from recess (3) open-ended one side.

3. A key group mounting structure according to claim 1, wherein: the opening edge that silica gel piece (1) is located recess (3) is provided with boss (9), the back of button (2) is located and extends around card post (4) and has protruding edge (10) with the laminating of boss (9) upper surface.

4. A key group mounting structure according to claim 1, wherein: the clamping blocks (6) and the cross sections of the clamping grooves (5) are arranged in an arc shape.

5. A key group mounting structure according to claim 1, wherein: the cross section of recess (3) and card post (4) personally submits circular setting, card post (4) and recess (3) interference fit.

6. A key group mounting structure according to claim 5, wherein: the positioning blocks (7) are arranged in two pieces, the two positioning blocks (7) are arranged along the diameter direction of the groove (3), and the distance between the two positioning blocks (7) and the axis of the groove (3) is different.

7. A key group mounting structure according to claim 1, wherein: the silica gel sheet (1) is provided with a plurality of material reducing holes (11).

8. A key group mounting structure according to claim 5, wherein: the joint of the end face of the clamping column (4) and the side wall is provided with an inverted angle, and the joint of the inner wall of the positioning groove (8) and the end face of the clamping column (4) is also provided with an inverted angle.