CN219961013U

CN219961013U - Calling device

Info

Publication number: CN219961013U
Application number: CN202320521832.2U
Authority: CN
Inventors: 杜相泉; 李卫君
Original assignee: Zhejiang Mairui Robot Co Ltd
Current assignee: Zhejiang Mairui Robot Co Ltd
Priority date: 2023-03-17
Filing date: 2023-03-17
Publication date: 2023-11-03
Anticipated expiration: 2033-03-17

Abstract

The utility model discloses a caller, comprising: a base and a housing; a circuit board is arranged in the installation space; a plurality of reset buttons with reset functions are arranged on the circuit board; the shell is provided with a plurality of mounting hole sites which are used for corresponding to the reset buttons; a key cap is movably arranged in the mounting hole site; a support column for sliding and supporting the key cap is arranged in the mounting hole site; limiting protrusions for limiting the key caps are respectively formed on two sides of the supporting columns; a pressing convex part which is used for being inserted into a jack formed by the support column to contact with the reset button is arranged below the key cap; pressing stroke holes are formed on two sides of the pressing convex part respectively; the limit bulges at the two sides are respectively clamped into the pressing stroke holes at the two sides; the cross section of the pressing convex part is in a first waist shape; the cross section of the support column is a second waist shape matched with the first waist shape. The caller of the utility model has high installation efficiency, low cost and longer service life.

Description

Calling device

Technical Field

The present utility model relates to a pager.

Background

The existing caller adopts an aluminum profile as a shell, a circuit board is inconvenient to mount and dismount through screw fixation, accurate butt joint between a reset button and a key on the circuit board cannot be realized, production efficiency is low, and the reset button is easy to damage under long-time and large-force pressing. The antenna of the existing caller is external, so that the whole volume of the caller is too large, the internal electric connection structure is further increased, and the installation complexity is increased.

Disclosure of Invention

The utility model provides a caller for solving the technical problems, which adopts the following technical scheme:

a pager, comprising: a base and a housing; the shell is fixed above the base to form an installation space together with the base; a circuit board is arranged in the installation space; a plurality of reset buttons with reset functions are arranged on the circuit board; the shell is provided with a plurality of mounting hole sites which are used for corresponding to the reset buttons; a key cap used for being pressed by a worker to trigger a corresponding reset button is movably arranged in the installation hole site; a support column for sliding and supporting the key cap is arranged in the mounting hole site; limiting protrusions for limiting the key caps are respectively formed on two sides of the supporting columns; a pressing convex part which is used for being inserted into a jack formed by the support column to contact with the reset button is arranged below the key cap; a reset button is at least partially inserted into the jack; pressing stroke holes are formed on two sides of the pressing convex part respectively; the limit bulges at the two sides are respectively clamped into the pressing stroke holes at the two sides; the cross section of the pressing convex part is in a first waist shape; the cross section of the support column is a second waist shape matched with the first waist shape.

Further, the pressing protrusion has a hollow structure, and an X-shaped pressing portion for increasing a contact area with the reset button is formed in the hollow.

Further, the base is formed with a plurality of fixing studs in the installation space; the shell is provided with a plurality of threaded holes corresponding to the plurality of fixing studs in the installation space; the shell is fixed to the base through screws screwed into the fixing studs and the threaded holes in sequence.

Further, a first through hole for one of the plurality of fixing studs to pass through is formed in the board body of the circuit board; the circuit board is sleeved on the periphery of one of the fixing studs through the first through hole so as to be pressed in the installation space by the shell.

Further, the thickness of the fixing stud is equal to the thickness of the circuit board.

Further, the first through hole is located in the middle of the circuit board.

Further, an antenna for transmitting signals to the receiver is arranged in the installation space; a mounting concave part is formed on one side of the circuit board;

the antenna is installed in the installation concave part and is electrically connected to the circuit board.

Further, a plurality of indicator lamps are arranged on the circuit board; the periphery of the indicator lamp is fixed with a lampshade; the shell is provided with a second through hole for the lampshade to penetrate through the shell to extend out of the shell; the shell is sleeved on the periphery of the lampshade through the second through hole.

Further, the side surface of the shell is also provided with an outlet for inserting a cable into the shell to be electrically connected with the circuit board; the cable fixing connector is arranged in the outlet.

Further, two mounting holes for mounting the caller are formed at the lower side of the base; the two mounting holes are respectively positioned at two sides of the cable fixing joint.

The utility model has the advantages that the provided caller adopts a simple mounting structure, so that the reset button and the key cap can be accurately abutted, the internal mounting circuit is saved, the assembly efficiency is improved, and the production cost is reduced. Not only improved installation effectiveness through waist shape cooperation between button cap and the casing, still increased connection structure's stability, avoided the button cap to take place to rotate, can also avoid the button cap to receive the too big and damage to reset button of pressing force through pressing the bellied cooperation of formation hole and spacing, through this extension reset button's life.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.

FIG. 1 is a schematic diagram of a pager in accordance with the present utility model;

FIG. 2 is an exploded view of one of the callers of FIG. 1;

FIG. 3 is a schematic view of a key cap of the pager of FIG. 1;

FIG. 4 is a schematic view of the housing of a pager of FIG. 1;

the pager 10, the base 11, the fixing stud 112, the mounting hole 113, the housing 12, a screw hole (not shown), the second through hole 121, the outlet 122, the mounting hole 123, the support column 124, the insertion hole 125, the limit projection 126, the key cap 13, the pressing projection 131, the pressing stroke hole 132, the x-shaped pressing portion 133, the wiring board 14, the first through hole 141, the mounting recess 142, the reset button 15, the indicator lamp 16, the lamp housing 17, the antenna 18, and the cable fixing connector 19.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

As shown in fig. 1-4, a pager 10 of the present utility model includes: a base 11 and a housing 12, wherein the housing 12 is fixed above the base 11 to form a mounting space together with the base 11, and a circuit board 14 is mounted in the mounting space. The circuit board 14 is provided with a plurality of reset buttons 15, and the reset buttons 15 have reset functions, namely, after being pressed down, if the applied external force disappears, the reset buttons 15 automatically rebound to the original state. In this embodiment, a plurality of mounting holes 123 are formed in the housing 12, and the mounting holes 123 are in one-to-one correspondence with the plurality of reset buttons 15. A key cap 13 is movably installed in the installation hole 123, and the key cap 13 can move up and down for being pressed by a worker to trigger the corresponding reset button 15. A supporting column 124 is disposed in the mounting hole 123, the supporting column 124 is used for slidably supporting the key cap 13, and limiting protrusions 126 are respectively formed on two sides of the supporting column 124 and are used for limiting the key cap 13 so as to prevent the key cap 13 from being separated from the supporting column 124. A pressing protrusion 131 is provided under the key cap 13, and the pressing protrusion 131 is inserted into the insertion hole 125 formed in the support post 124 to contact the reset button 15. During installation, the reset button 15 is at least partially inserted into the jack 125, so that the reset button 15 and the pressing convex part 131 can be simultaneously in limiting butt joint through the jack 125, the accuracy of butt joint between the pressing convex part 131 and the reset button 15 is ensured, the movement track of the reset button 15 can be limited, the use safety of the reset button 15 is ensured, and the service life is prolonged. The pressing projection 131 has pressing stroke holes 132 formed on both sides thereof, and the limit projections 126 on both sides are respectively engaged with the pressing stroke holes 132 on both sides, so that the formation of the pressing projection 131 and the pressure applied to the reset button 15 by the pressing projection 131 can be limited by the pressing stroke holes 132. The cross section of the pressing protrusion 131 is a first waist shape, the cross section of the supporting column 124 is a second waist shape matched with the first waist shape, stability of the connection structure can be improved by limiting through the structure, rotation of the key cap 13 is avoided, that is, in the installation structure, through matching of waist-shaped surfaces between the key cap 13 and the shell 12, the vertical state between the key cap 13 and the upper surface of the shell 12 is restrained, when the key cap 13 is pressed down, the bottom surface of the key cap 13 is extruded with the surface of the reset button 15, the reset button 15 presses down the control circuit board 14 to send out a signal, then after the pressing force is removed, the reset button 15 rebounds the key cap 13 by means of elasticity of the reset button 15, electric or mechanical connection is not needed between the key cap 13 and the circuit board 14, and the installation structure is convenient, and cables and connectors are saved.

Therefore, the caller 10 of this scheme adopts simple mounting structure to make reset button 15 and button cap 13 can accurate butt joint, saves internally mounted circuit, when improving packaging efficiency, reduction in production cost. Not only the installation effectiveness is improved through waist shape cooperation between button cap 13 and casing 12, still increased connection structure's stability, avoid button cap 13 to take place to rotate, can also avoid button cap 13 to receive the too big and damage to reset button 15 of pressing force through pressing the cooperation of forming hole with spacing arch 126, through this extension reset button 15's life.

As a specific embodiment, the pressing protrusion 131 has a hollow structure, and the X-shaped pressing portion 133 is formed in the hollow, so that the overall mass can be reduced by adopting the hollow structure, and the contact area with the reset button 15 can be increased by the X-shaped pressing portion 133, thereby ensuring the effectiveness of pressing the reset button 15.

As a specific embodiment, the base 11 is formed with a plurality of fixing studs 112 in the installation space, and the housing 12 is formed with a plurality of screw holes in the installation space, the screw holes being in one-to-one correspondence with the fixing studs 112. When the device is installed, the shell 12 is fixed to the base 11 through screws sequentially screwed into the fixing studs 112 and the threaded holes. In addition, a first through hole 141 through which one of the plurality of fixing studs 112 passes is formed in the plate body of the circuit board 14, and when the circuit board 14 is mounted, the circuit board 14 is fitted around the outer periphery of the one of the plurality of fixing studs 112 through the first through hole 141 so as to be press-fitted into the mounting space by the housing 12. By means of the mode, the base 11, the shell 12 and the circuit board 14 are integrally installed, the installation is quicker and simpler, the installation position of the circuit board 14 can be pre-positioned, and the subsequent butt joint installation between the reset button 15 and the key cap 13 is convenient. Here, the thickness of the fixing stud 112 is set to be equal to the thickness of the wiring board 14, thereby securing stability of press-fitting the wiring board 14. Also, the first through hole 141 is provided at a position located at the middle of the wiring board 14, i.e., at a center position, so as to stabilize the mounting structure of the wiring board 14.

As a specific embodiment, an antenna 18 is further provided in the installation space, and the antenna 18 is used for transmitting signals to the receiving antenna 18. Specifically, a mounting recess 142 is formed on one side of the circuit board 14, and the antenna 18 is mounted in the mounting recess 142 and electrically connected to the circuit board 14, so that the internal antenna 18 is electrically connected to the circuit board 14, and the external antenna 18 is replaced, so that the overall size is reduced.

In a specific embodiment, the circuit board 14 is provided with a plurality of indicator lamps 16, and a lamp cover 17 is fixed to the outer periphery of the indicator lamps 16. The casing 12 is formed with the second through-hole 121, and the second through-hole 121 is used for supplying lamp shade 17 to pass casing 12 in order to stretch out to the outside of casing 12, and like this, the periphery of lamp shade 17 is located to casing 12 through second through-hole 121 cover, through the cooperation of lamp shade 17 and foretell fixed stud 112, can realize carrying out accurate location to the mounted position of circuit board 14, when improving the installation accuracy, through simple stable in structure mounting structure.

As a specific embodiment, the side surface of the housing 12 is further provided with a second through hole 121 for inserting a cable into the housing 12 to electrically connect with the circuit board 14, and the cable fixing connector 19 is installed in the outlet 122. Two mounting holes 113 are formed on the underside of the base 11 for mounting the pager 10. Two mounting holes 113 are located on both sides of the cable fixing connector 19, respectively. Thus, the two mounting holes 123 of the base 11 are located on two sides and are staggered with the positions of the wire outlets 122 on the horizontal projection plane, so that the situation that the mounting holes 123 are directly below the wire outlets 122 and the mounting difficulty is avoided.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be appreciated by persons skilled in the art that the above embodiments are not intended to limit the utility model in any way, and that all technical solutions obtained by means of equivalent substitutions or equivalent transformations fall within the scope of the utility model.

Claims

1. A pager, comprising: a base and a housing; the shell is fixed above the base to form an installation space together with the base; the circuit board is arranged in the installation space; a plurality of reset buttons with reset functions are arranged on the circuit board; a plurality of mounting hole sites which are used for corresponding to the reset buttons are formed on the shell; a key cap used for being pressed by a worker to trigger the corresponding reset button is slidably arranged in the installation hole site; a support column for sliding supporting the key cap is arranged in the mounting hole site; limiting protrusions for limiting the key caps are respectively formed on two sides of the supporting columns; a pressing convex part which is used for being inserted into a jack formed by the support column to contact the reset button is arranged below the key cap; the reset button is at least partially inserted into the jack; pressing stroke holes are formed on two sides of the pressing convex part respectively; the limit protrusions on the two sides are respectively clamped into the pressing stroke holes on the two sides; the cross section of the pressing convex part is in a first waist shape; the cross section of the support column is a second waist shape matched with the first waist shape.

2. The pager of claim 1, wherein,

the pressing protrusion has a hollow structure, and an X-shaped pressing portion for increasing a contact area with the reset button is formed in the hollow.

3. The pager of claim 1, wherein,

the base is provided with a plurality of fixing studs in the installation space; the shell is provided with a plurality of threaded holes corresponding to the plurality of fixing studs in the installation space; the shell is screwed into the fixing stud and the threaded hole in sequence through screws and is fixed to the base.

4. The pager of claim 3, wherein,

the board body of the circuit board is provided with a first through hole for one of a plurality of fixing studs to pass through; the circuit board is sleeved on the periphery of one of the fixing studs through the first through hole so as to be pressed in the installation space by the shell.

5. The pager of claim 4, wherein,

the thickness of the fixing stud is equal to that of the circuit board.

6. The pager of claim 5, wherein,

the first through hole is positioned in the middle of the circuit board.

7. The pager of claim 1, wherein,

an antenna for transmitting signals to the receiver is also arranged in the installation space; a mounting concave part is formed on one side of the circuit board;

the antenna is mounted in the mounting recess and electrically connected to the circuit board.

8. The pager of claim 1, wherein,

a plurality of indicator lamps are arranged on the circuit board; a lampshade is fixed on the periphery of the indicator lamp; the housing is formed with a second through hole for the lamp cover to pass through the housing to protrude to the outside of the housing; the shell is sleeved on the periphery of the lampshade through the second through hole.

9. The pager of claim 1, wherein,

the side surface of the shell is also provided with an outlet for inserting a cable into the shell to be electrically connected with the circuit board; and a cable fixing connector is arranged in the outlet.

10. The pager of claim 9, wherein,

two mounting holes for mounting the caller are formed on the lower side of the base; the two mounting holes are respectively positioned at two sides of the cable fixing connector.