CN210129447U - Novel calculator capable of preventing button extrusion - Google Patents

Abstract

The utility model relates to the technical field of calculators, in particular to a novel calculator capable of preventing a button from being extruded, the novel calculator comprises a shell, a circuit board and a display screen, wherein the shell is provided with a plurality of button windows and buttons, the end part of the button is provided with a blocking edge, the shell is also internally provided with a supporting plate and a plurality of elastic supporting pieces which are elastically supported and connected with the supporting plate up and down, the circuit board is fixedly arranged on the upper side surface of the supporting plate, a plurality of stop rods which respectively correspond to the upper and lower gaps of the stop edges of the buttons are also arranged on the upper side surface of the supporting plate, the button moves downwards, after the corresponding contact mechanism is conducted, the blocking edge of the button is in up-and-down jacking fit with the corresponding blocking rod, so that the button is prevented from excessively squeezing the circuit board and the contact mechanism, and meanwhile, the elastic supporting piece buffers pressure transmitted to the supporting plate from the corresponding blocking rod. The utility model discloses the problem of avoiding excessively causing the excessive extrusion contact mechanism of button and circuit board because of the pressing force that can be good.

Description

Novel calculator capable of preventing button extrusion

Technical Field

The utility model relates to a calculator technical field especially relates to a can prevent extruded novel calculator of button.

Background

The calculator is used as an electronic calculation tool for replacing manual calculation, and plays an irreplaceable important role in data calculation of various industries. The existing calculator gradually has multiple computing capabilities through a series of developments, and different models are designed according to actual application occasions. The calculator comprises a shell, a circuit board, a display screen, buttons, a battery and the like, wherein the buttons are devices for realizing human-computer information interchange through manual pressing, namely, the buttons are pressed to the circuit board through the manual pressing, then corresponding contact mechanisms on the circuit board are conducted, further, the circuit board generates a series of signals and processes the signals, and finally, target information is displayed on the display screen, the buttons are assembled on the shell, and the bottom of each button is generally provided with a blocking edge which is matched with the inner wall of the shell in an outward blocking mode so as to prevent the button from being separated from the shell.

However, in practical use, the problem of too large force for pressing the button can occur in many cases, for example, in production and processing occasions such as steel and stone, the worker can not control the hand force in time after performing heavy physical work, and if in some occasions, the worker can use a tool on the hand to knock the button because of convenience, in these occasions, the button is likely to cause excessive extrusion of the button due to too large pressing force, the pressing distance of the button is too long, the extrusion force on the contact mechanism and the circuit board is too large, the contact mechanism is very easy to crush, even the circuit board is damaged due to extrusion deformation, and the normal use of the calculator is finally affected.

SUMMERY OF THE UTILITY MODEL

The utility model provides a can prevent button extruded novel calculator to solve prior art and lead to the problem of contact mechanism and circuit board damage because of the excessive extrusion of button easily.

The utility model discloses a can prevent that extruded novel calculator of button adopts following technical scheme:

the utility model provides a can prevent extruded novel calculator of button, is in including casing and setting circuit board, display screen in the casing, the casing corresponds the position department of the contact mechanism on the circuit board is equipped with a plurality of button windows and the button of activity assembly in each button window about respectively, the button is located tip in the casing be equipped with the outside stop complex of casing keeps off along its characterized in that: the circuit board is fixedly mounted on the upper side face of the supporting plate, a plurality of stop rods which correspond to the upper and lower gaps of the stop edges of the buttons respectively are further arranged on the upper side face of the supporting plate, the buttons move downwards and are in top-and-bottom jacking fit with the corresponding stop rods after being conducted on the corresponding contact mechanisms, so that the buttons are prevented from excessively extruding the circuit board and the contact mechanisms, and meanwhile, the elastic supporting pieces buffer pressure transmitted to the supporting plate from the corresponding stop rods.

Each stop lever is a U-shaped rod structure with a downward opening, two ends of each stop lever are respectively fixed on two side edges of the supporting plate, so that the gaps of the upper end surfaces of the stop levers correspond to the buttons in a whole row or column, and the circuit board is positioned in a space enclosed by the stop levers and the supporting plate.

Two sides of each row or each row of buttons are correspondingly provided with a stop lever, so that the stop edge of each button corresponds to two stop levers to ensure the top pressure balance.

The upper end surface of each stop lever is provided with a plurality of top blocks which are respectively used for being in top pressure fit with the blocking edges of the corresponding buttons.

Each top block is used for being provided with a soft rubber cushion on the end face which is in abutting fit with the baffle edge of the corresponding button.

And the upper side and the lower side of the position of the circuit board corresponding to each stop lever are respectively provided with an insulating buffer pad.

Each elastic support piece all includes the middle elastic sheet that is the extending structure that opening decurrent domes, both ends extend along the horizontal direction, the domes of elastic sheet upper end with the backup pad supports to be connected, the position department that corresponds each extending structure in the casing all is equipped with the fixed block, be equipped with the confession on the fixed block thereby the extending structure of elastic sheet passes the restriction the through-hole of the position of elastic sheet, two extending structure of elastic sheet slide back to back in the through-hole that corresponds the fixed block when the domes warp downwards, slide in the through-hole that corresponds the fixed block in opposite directions when the domes warp upwards.

The elastic supporting parts are distributed along two corresponding sides of the supporting plate.

The utility model has the advantages that: the utility model discloses backup pad and elastic support element have been set up in the casing, and with circuit board fixed mounting on the last side of backup pad, the pin that lies in on the side of backup pad can be at button activity down and switch on corresponding contact mechanism after with the fender of button along top pressure cooperation from top to bottom, therefore, if further press the button, then no longer continue to be close to between button and the circuit board, thereby guarantee that button and the contact mechanism on the circuit board are in reasonable distance, prevent that the excessive extrusion of button from causing the damage to contact mechanism and circuit board, keep off at the button along with pin top pressure cooperation back, the pin conducts pressure to the backup pad on, elastic support element of elastic support backup pad then can play the effect of slow-down pressure, prevent too fast, the circuit board that the overweight press the button caused vibrates, further protection circuit board and contact mechanism, therefore, the utility model discloses can be good avoid causing the excessive extrusion contact mechanism and circuit mechanism of button because of pressing force is too big Problems with the plate.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of a specific embodiment of a novel calculator capable of preventing a button from being pressed according to the present invention;

FIG. 2 is a schematic view of the structure in the direction A-A in FIG. 1;

FIG. 3 is an enlarged schematic view of a partial view P of FIG. 1;

FIG. 4 is an enlarged schematic view of the partial view Q of FIG. 2;

FIG. 5 is a schematic view of the stop lever;

FIG. 6 is a schematic structural view of the elastic supporting member;

FIG. 7 is a schematic structural view of the fixing block of FIG. 6;

in the figure: 1. a lower housing; 11. an upper housing; 12. a display window; 2. a circuit board; 3. a button; 31. blocking edges; 4. a stop lever; 41. a top block; 42. an insulating buffer pad; 43. a soft rubber cushion; 5. a support plate; 6. an elastic sheet; 61. a fixed block; 62. an arch structure; 63. and (5) an extension structure.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The embodiment of the novel calculator capable of preventing the button extrusion of the utility model is shown in fig. 1 to 7, and comprises a shell, a circuit board 2 and a display screen which are arranged in the shell, the shell is divided into an upper shell 11 and a lower shell 1, the right end of the upper shell 11 is provided with a display window 12 for watching the display information of the display screen, the circuit board 2 and the display screen are arranged in the lower shell 1, the upper shell 11 is provided with twenty button windows and buttons 3 which are respectively movably assembled in the button windows up and down at the positions corresponding to the contact mechanisms on the circuit board 2, the end part of the button 3 in the upper shell 11, namely the lower end, is provided with a blocking edge 31 which is matched with the outward blocking of the upper shell 11, the lower shell 1 is also provided with a support plate 5 and ten elastic support pieces which are connected with the support plate 5 through up and down elastic support, the circuit board 2 is fixedly arranged on the upper side surface of the support plate 5, the upper side surface of the supporting plate 5 is also provided with ten blocking rods 4 which respectively correspond to the blocking edges 31 of the buttons 3 in an up-and-down clearance mode, the blocking edges 31 of the buttons 3 move downwards and are in up-and-down jacking fit with the corresponding blocking rods 4 after the buttons 3 are conducted on corresponding contact mechanisms, so that the buttons 3 are prevented from excessively extruding the circuit board 2 and the contact mechanisms, and meanwhile, the elastic supporting pieces buffer the pressure transmitted to the supporting plate 5 from the corresponding blocking rods 4.

Specifically, each stop lever 4 is a U-shaped lever structure with a downward opening, and the two ends of each stop lever 4 are fixed on the two side edges of the supporting plate 5 respectively, so that the gaps between the upper end faces of the stop levers 4 correspond to the aligned buttons 3, and the circuit board 2 is located in the space enclosed by the stop levers 4 and the supporting plate 5.

In this embodiment, the both sides of the button 3 of every row all correspond and are equipped with a pin 4 to the fender edge 31 of every button 3 all corresponds with two pins 4 in order to guarantee the roof pressure balance, all is equipped with a plurality ofly on the up end of each pin 4 and is used for respectively with the fender edge 31 roof pressure complex kicking block 41 of each corresponding button 3, each kicking block 41 is used for all being equipped with the flexible glue pad 43 that is used for the buffering on the fender edge 31 roof pressure complex terminal surface with corresponding button 3.

The upper and lower sides of the circuit board 2 corresponding to the positions of the blocking rods 4 are provided with insulating cushions 42, thereby further preventing the blocking rods 4 or the supporting plate 5 from pressing the circuit board 2.

Each elastic support member includes the middle downwardly-opened arch structure 62, the two ends are the elastic sheet 6 of the extending structure 63 extending along the horizontal direction, the upper end of the arch structure 62 of the elastic sheet 6 is supported and connected with the support plate 5, specifically, the upper end can be bonded or welded together, the position corresponding to each extending structure 63 in the lower shell 1 is provided with a fixing block 61, the fixing block 61 is provided with a through hole for the extending structure 63 of the elastic sheet 6 to pass through so as to limit the position of the elastic sheet 6, the two extending structures 63 of the elastic sheet 6 slide back to back in the through hole corresponding to the fixing block 61 when the arch structure 62 deforms downwards, and slide towards each other in the through hole corresponding to the fixing block 61 when the arch structure 62 deforms upwards, specifically, the fixing block 61 is a downwardly-opened U-shaped plate, and the U-shaped plate and the inner wall of the lower shell 1 jointly enclose.

The elastic supporting members are distributed along the front and rear sides of the supporting plate 5 and correspond to each row of buttons 3 one by one.

The distance between the stop edge 31 of the push button 3 and the top block 41 can be set according to the actual effective stroke of the push button 3.

The supporting plate 5 and the blocking rod 4 can be made of metal plates or plastic plates with higher strength, and the connection between the blocking rod 4 and the supporting plate 5 can be welded or bonded.

In other embodiments, one end of the stop lever can be fixed on the support plate, and the other end of the stop lever passes through the blank position of the circuit board and corresponds to the stop edge of the corresponding button, and can be in a straight column shape, an L-shaped shape and other applicable shapes; the stop lever can also be an inverted U-shaped lever structure with a round hole for the button to penetrate through at the upper end, so that the lower end of the button penetrates through the round hole and is in triggering fit with the contact mechanism, and the stop edge of the button is in up-and-down jacking fit with the upper end surface near the round hole; the elastic supporting pieces can also be arranged in multiple rows or multiple columns, so that the elastic supporting effect is enhanced; the stop lever can also correspond to the buttons in the whole row, specifically, the stop lever corresponds to the whole row or the whole column to select according to the actual button distribution, and the high strength is taken as a selection condition; one stop lever can be arranged for each row or each row, but the stability is reduced; the elastic supporting part can also be a spring and the like, but the supporting rod needs to be in sliding fit with the inner wall of the periphery of the lower shell.

In the concrete use, normally press down, the fender edge 31 of button 3 is in the kicking block 41 top of pin 4 all the time, in case press the pressure degree too big appears, button 3 downstream is too much, the fender edge 31 of button 3 and the kicking block 41 roof pressure cooperation of pin 4, if further press button 3 this moment, then no longer continue to be close to between button 3 and the circuit board 2 to guarantee that the contact mechanism on button 3 and the circuit board 2 is in reasonable distance, prevent that button 3's excessive extrusion from causing the damage to contact mechanism and circuit board 2. Keep off along 31 and the cooperation back of 4 roof pressures of pin at button 3, pin 4 with pressure conduction to backup pad 5 on, the effect of slow-down pressure is then can be played to the elastic support piece of elastic support backup pad 5, prevents that too fast, the circuit board 2 that the overweight pressed button 3 caused from vibrating, further protection circuit board 2 and contact mechanism, consequently, the utility model discloses can be good avoid causing the problem of the excessive extrusion contact mechanism of button 3 and circuit board 2 because of the pressing force is too big.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. The utility model provides a can prevent extruded novel calculator of button, is in including casing and setting circuit board, display screen in the casing, the casing corresponds the position department of the contact mechanism on the circuit board is equipped with a plurality of button windows and the button of activity assembly in each button window about respectively, the button is located tip in the casing be equipped with the outside stop complex of casing keeps off along its characterized in that: the circuit board is fixedly mounted on the upper side face of the supporting plate, a plurality of stop rods which correspond to the upper and lower gaps of the stop edges of the buttons respectively are further arranged on the upper side face of the supporting plate, the buttons move downwards and are in top-and-bottom jacking fit with the corresponding stop rods after being conducted on the corresponding contact mechanisms, so that the buttons are prevented from excessively extruding the circuit board and the contact mechanisms, and meanwhile, the elastic supporting pieces buffer pressure transmitted to the supporting plate from the corresponding stop rods.

2. The novel calculator of claim 1, wherein the button pressing prevention device comprises: each stop lever is a U-shaped rod structure with a downward opening, two ends of each stop lever are respectively fixed on two side edges of the supporting plate, so that the gaps of the upper end surfaces of the stop levers correspond to the buttons in a whole row or column, and the circuit board is positioned in a space enclosed by the stop levers and the supporting plate.

3. The novel calculator of claim 2, wherein the button pressing prevention device comprises: two sides of each row or each row of buttons are correspondingly provided with a stop lever, so that the stop edge of each button corresponds to two stop levers to ensure the top pressure balance.

4. A novel calculator capable of preventing button pressing according to claim 2 or 3, wherein: the upper end surface of each stop lever is provided with a plurality of top blocks which are respectively used for being in top pressure fit with the blocking edges of the corresponding buttons.

5. The novel calculator of claim 4, wherein the button pressing prevention device comprises: each top block is used for being provided with a soft rubber cushion on the end face which is in abutting fit with the baffle edge of the corresponding button.

6. The novel calculator of claim 5, wherein the button pressing prevention device comprises: and the upper side and the lower side of the position of the circuit board corresponding to each stop lever are respectively provided with an insulating buffer pad.

7. The novel calculator of claim 1, wherein the button pressing prevention device comprises: each elastic support piece all includes the middle elastic sheet that is the extending structure that opening decurrent domes, both ends extend along the horizontal direction, the domes of elastic sheet upper end with the backup pad supports to be connected, the position department that corresponds each extending structure in the casing all is equipped with the fixed block, be equipped with the confession on the fixed block thereby the extending structure of elastic sheet passes the restriction the through-hole of the position of elastic sheet, two extending structure of elastic sheet slide back to back in the through-hole that corresponds the fixed block when the domes warp downwards, slide in the through-hole that corresponds the fixed block in opposite directions when the domes warp upwards.

8. The novel calculator of claim 7, wherein the button pressing prevention device comprises: the elastic supporting parts are distributed along two corresponding sides of the supporting plate.

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