CN220141682U - Handheld detecting instrument - Google Patents

Abstract

The utility model discloses a handheld detection instrument, which comprises a shell body with an installation cavity inside, and a fixed bracket, a key board and a battery which are positioned in the installation cavity; the fixed support is connected with the shell body, and the key board and the battery are arranged on two opposite sides of the fixed support. Through fixing the fixed bolster in the installation cavity of shell to install keypad and battery in the opposite both sides of fixed bolster, can make a fixed bolster provide the support for keypad and battery simultaneously, reduce the quantity of supporting part in the shell, optimized the spatial layout of each part in the shell, be favorable to realizing hand-held type detecting instrument's miniaturization, compactification, flattening design, be favorable to reducing manufacturing cost.

Description

Handheld detecting instrument

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a handheld detection instrument.

Background

The traditional ultrasonic equipment is large in size, large machines such as desk type equipment are mostly used, and convenience of mobile operation is poor, so that a small-sized handheld ultrasonic detection instrument is more and more favored by operators such as medical staff.

Some small-sized handheld detection instruments, such as handheld ultrasonic detection instruments, generally comprise a housing body and a sound head assembly connected to the end of the housing body, wherein functional keys are arranged on the surface of the housing body, and a switch board, a battery, a main board and other components are arranged in an inner cavity of the housing body. In the prior art, be equipped with the first fixed bolster of installation switchboard and the second fixed bolster of installation battery in the casing, first fixed bolster and second fixed bolster are mutually independent and install in the inside different positions of casing generally, so, first fixed bolster and second fixed bolster all need occupy great installation space in the casing, and the volume ratio of corresponding casing is great, is unfavorable for hand-held type detecting instrument's miniaturization, compactification design.

Disclosure of Invention

Therefore, the technical problem to be solved by the utility model is to overcome the defects of large volume and low utilization rate of the internal space of the shell of the handheld detection instrument in the prior art, thereby providing the handheld detection instrument.

In order to solve the technical problems, the technical scheme of the utility model is as follows:

a handheld detection instrument comprises a shell body with an installation cavity inside, and a fixed bracket, a key board and a battery which are positioned in the installation cavity; the fixed support is connected with the shell body, and the key board and the battery are arranged on two opposite sides of the fixed support.

Further, the shell body comprises an upper shell body and a lower shell body which are connected with each other and enclose to form the installation cavity, keys are arranged on the upper shell body, the key board is installed on one side, facing the upper shell body, of the fixing support, and the battery is installed on the other side, facing the lower shell body, of the fixing support.

Further, a main board is further arranged in the mounting cavity of the shell body, and the main board is positioned on one side of the battery facing the lower shell body.

Further, a bracket hanging structure is formed on the inner wall of the upper shell body; the fixed support comprises a support body and a plurality of fixed buckles convexly arranged on one side of the support body, which faces the upper shell body; the fixing buckles are connected to the support hanging structure, so that a mounting gap suitable for mounting the key board is formed between the support body and the inner wall of the upper shell body.

Further, a key board mounting groove suitable for mounting the key board is formed in one side face, facing the upper shell, of the support body.

Further, a charging coil mounting groove is further formed in one side face, facing the upper shell, of the support body, and a wireless charging module is mounted on the charging coil mounting groove.

Further, the fixing support comprises a first clamping section with elasticity, and the first clamping section is elastically propped against the inner wall of the upper shell body to fix the support body on the support hanging structure.

Further, the fixing support further comprises a second clamping section with elasticity, and the second clamping section is elastically abutted against the battery to fix the battery on the support body.

Further, the first clamping section and the second clamping section are elastic buckles formed integrally; one end of the first clamping section is connected to the support body, the other end of the first clamping section is inclined to the direction of the inner wall of the upper shell body to be bent, and one end of the second clamping section is connected to one end of the first clamping section away from the support body, and the other end of the second clamping section is bent to the direction of the inner wall of the lower shell body.

Further, a flange structure is arranged on one side, away from the second clamping section, of the support body, and the second clamping section and the flange structure are matched and fixed with the battery.

Further, the support hanging structure comprises at least one fixed hanging buckle fixed on the inner wall of the upper shell body, and the fixed buckle and the fixed hanging buckle are mutually buckled along the connecting line direction of the support body and the upper shell body.

Further, the functional module unit on the main board is located at one side of the main board facing the lower shell.

Further, a charging coil mounting groove is formed in the inner wall of the lower shell body, and a wireless charging module is mounted on the charging coil mounting groove.

Further, an NFC coil mounting groove is formed in the inner wall of the lower shell, and an NFC coil is mounted in the NFC coil mounting groove.

Further, the antenna is arranged close to the inner wall of the upper shell.

Further, the sound head assembly is further included, the shell has an open end and a closed end, the fixing support is suitable for being inserted into the installation cavity in the shell from the open end of the shell, and the sound head assembly is connected to the open end of the shell to seal the installation cavity.

The technical scheme of the utility model has the following advantages:

according to the handheld detection instrument provided by the utility model, the fixed support is fixed in the mounting cavity of the shell, and the key board and the battery are mounted on the two opposite sides of the fixed support, so that one fixed support can simultaneously support the key board and the battery, the number of supporting parts in the shell is reduced, the space layout of each part in the shell is optimized, the miniaturization, the compactness and the flattening design of the handheld detection instrument are realized, and the production cost is reduced.

Drawings

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

FIG. 1 is a schematic diagram showing the overall structure of a handheld detection instrument according to a first embodiment of the present utility model;

FIG. 2 is a schematic diagram illustrating an assembled structure of a handheld detecting instrument according to a first embodiment of the present utility model;

FIG. 3 is a schematic view of a structure of a hand-held detecting instrument with an upper housing hidden in the hand-held detecting instrument according to the first embodiment of the present utility model;

FIG. 4 is a schematic view of a structure of a hand-held detecting instrument according to a first embodiment of the present utility model after the lower casing is hidden;

FIG. 5 is an exploded view of a handheld inspection instrument according to a first embodiment of the present utility model;

fig. 6 is a schematic structural diagram of connection relationship among an upper case body, a fixing bracket and a battery in the first embodiment of the present utility model;

FIG. 7 is a schematic diagram showing the connection relationship between the upper shell and the fixing bracket according to the first embodiment of the present utility model;

fig. 8 is an exploded view of the upper case, the fixing bracket and the battery according to the first embodiment of the present utility model;

fig. 9 is a schematic explosion diagram of the upper case, the fixing bracket and the battery in the first embodiment of the utility model;

FIG. 10 is a schematic view showing the structure of a key sheet and an upper housing in accordance with the first embodiment of the present utility model;

FIG. 11 is a schematic view of the structure of an upper shell according to the first embodiment of the present utility model;

FIG. 12 is an enlarged view at A in FIG. 11;

fig. 13 is a schematic diagram showing a connection relationship between a fixing bracket and a battery in the first embodiment of the utility model;

fig. 14 is a schematic structural diagram of connection relationship among an upper case body, a fixing bracket and a battery in a second embodiment of the present utility model;

FIG. 15 is a schematic diagram showing the connection relationship between the upper shell and the fixing bracket in the second embodiment of the present utility model;

fig. 16 is an exploded view of the upper case, the fixing bracket and the battery according to the second embodiment of the present utility model;

fig. 17 is a schematic explosion diagram of the upper case, the fixing bracket and the battery in the second embodiment of the present utility model;

FIG. 18 is a schematic diagram showing the structure of a key sheet and an upper housing in a second embodiment of the present utility model;

fig. 19 is an enlarged view at B in fig. 18;

fig. 20 is a schematic diagram showing a connection relationship between a fixing bracket and a battery in the second embodiment of the present utility model.

Reference numerals illustrate: 1. a shell body; 1a, an upper shell body; 1b, a lower shell body; 11. fixing the hanging buckle; 111. the first hanging buckle wall; 112. a second hanging buckle wall; 113. a third hanging buckle wall; 114. hanging and buckling stiffening arms; 12. a card body; 13. limit edges; 14. a positioning pin; 15. a charging coil mounting groove; 16. NFC coil mounting slots; 2. a fixed bracket; 21. a bracket body; 22. an elastic buckle; 221. a first clamping section; 2211. stiffening ribs; 222. a second clamping section; 2221. elastic abutting against the wall; 2222. pressing the wall; 2223. limiting pressing blocks; 2224. a stiffening arm; 2225. a groove; 223. a clamping hole; 23. a fixing buckle; 24. a flange structure; 241. side baffles; 242. pressing into blocks; 25. a flange member; 251. a flange chuck; 26. ribs; 27. a key sheet mounting groove; 28. a charging coil mounting groove; 3. a battery; 4. a main board; 41. a functional module unit; 5. a key sheet; 51. a flexible circuit board; 6. a wireless charging module; 7. an NFC coil; 8. an acoustic head assembly; 9. a key; 10. an antenna.

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between 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 addition, the technical features of the different embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.

Example 1

A hand-held test instrument as shown in fig. 1-13 comprises a housing 1, a stationary support 2, a keypad 5 and a battery 3. Wherein, the inside of the shell body 1 is provided with an installation cavity, and the fixed bracket 2, the key board 5 and the battery 3 are all positioned in the installation cavity; the fixed bracket 2 is connected with the case body 1, and the key board 5 and the battery 3 are installed at opposite sides of the fixed bracket 2. In this embodiment, the battery 3 is a generally square lithium battery 3.

According to the handheld detection instrument, the fixed support 2 is fixed in the installation cavity of the shell body 1, the key board 5 and the battery 3 are installed on the two opposite sides of the fixed support 2, so that one fixed support 2 can simultaneously support the key board 5 and the battery 3, the number of supporting parts in the shell body 1 is reduced, the space layout of each part in the shell body 1 is optimized, and the handheld detection instrument is beneficial to realizing the miniaturization, the compactness and the flattening design of the handheld detection instrument and reducing the production cost.

As shown in fig. 1 to 5, the housing 1 is a combined housing with one end being open and the other end being closed, and the fixing bracket 2 can be inserted into a mounting cavity in the housing 1 through the open end of the housing 1. The shell body 1 comprises an upper shell body a1 and a lower shell body b1 which are connected with each other and enclose to form an installation cavity, a key 9 is arranged on the upper shell body a1, a key board 5 is arranged on one side of the fixed support 2 facing the upper shell body a1, the key 9 and the key board 5 are correspondingly arranged in position, and the battery 3 is arranged on the other side of the fixed support 2 facing the lower shell body b 1. In alternative embodiments, the housing 1 may also be an integral housing with one end open and the other end closed.

As shown in fig. 3 to 5, a main board 4 and an antenna 10 are further provided in the installation cavity of the housing body 1, the main board 4 is located at one side of the battery 3 facing the lower housing body b1 and is fixed on the lower housing body b1, and the main board 4 and the battery 3 are electrically connected with a gap therebetween. The antenna 10 is electrically connected to the main board 4 and is disposed close to the inner wall of the upper housing a1, and the antenna 10 is preferentially located at the edge of the inner wall of the upper housing a1 to avoid other components such as the fixing bracket 2. The end of the main board 4 far away from the sound head assembly 8 is provided with a charging interface, and the charging interface is embedded at the closed ends of the upper shell a1 and the lower shell b 1. The key sheet 5 is made of a flexible circuit board, and the key sheet 5 is electrically connected to the main board 4 through a flexible circuit board 51 bypassing the side walls of the fixed bracket 2 and the battery 3. The various functional module units 41 including the signal processing module on the main board 4 are all installed on one side of the main board 4 facing the lower shell b1, so that the functional module unit 41 with larger heating value on the main board 4 is made to be as close to the lower shell b1 as possible under the condition that the space in the shell 1 is limited, so that heat dissipation is facilitated, and meanwhile, the functional module unit 41 with larger heating value on the main board 4 is made to be as far away from the battery 3 as possible, so that the influence of the heating of the battery 3 on the functional module unit 41 is reduced.

In this embodiment, a charging coil mounting groove 15 and an NFC coil mounting groove 16 are formed in the inner wall of the lower housing 1b, a wireless charging module 6 is mounted on the charging coil mounting groove 15, and an NFC coil 7 is mounted in the NFC coil mounting groove 16. The wireless charging module 6 and the NFC coil 7 are embedded in the structural design on the inner wall of the lower shell body 1b, other supports for fixing the wireless charging module 6 and the NFC coil 7 are not required to be additionally arranged, and the size of the shell body 1 is reduced on the premise of increasing the functions of the handheld detection instrument, and the assembly is also convenient.

As shown in fig. 6 to 13, the inner wall of the upper case body a1 is integrally formed with a bracket hanging structure extending toward the fixed bracket 2; the fixed support 2 comprises a support body 21 with a sheet-shaped main body and a plurality of fixed buckles 23 protruding on the support body 21, wherein the fixed buckles 23 are positioned on one side of the support body 21 facing the upper shell a1, the fixed buckles 23 are buckled on a support hanging structure to form preliminary fixation of the fixed support 2 on the upper shell a1, and a mounting gap suitable for mounting the key board 5 is formed between the support body 21 and the inner wall of the upper shell a 1. In the assembly process, the key board 5 is firstly arranged on the bracket body 21, then the whole formed by the key board 5 and the fixed bracket 2 is inserted from the open end of the shell body 1, the fixed buckle 23 on the fixed bracket 2 is buckled on the bracket hanging structure, and the positions of the key 9 on the key board 5 and the shell body 1 are correspondingly arranged.

In this embodiment, the fixing bracket 2 further includes an elastic buckle 22 connected to the bracket body 21, and one end of the elastic buckle 22 is integrally formed at one end of the bracket body 21 near the open end of the housing 1. The elastic buckle 22 comprises a first clamping section 221 and a second clamping section 222 which have elasticity, one end of the first clamping section 221 is integrally formed on the bracket body 21, and the other end of the first clamping section is bent in the direction of the inner wall of the upper shell a 1; one end of the second clamping section 222 is integrally formed on one end of the first clamping section 221 away from the bracket body 21, and the other end is bent towards the inner wall of the lower shell b 1. The first clamping section 221 is suitable for elastically propping against the inner wall of the upper shell a1 to fix the bracket body 21 on the bracket hanging structure; the second clamping section 222 is suitable for elastically abutting against the battery 3 at the back side of the bracket body 21 to fix the battery 3 on the bracket body 21. When the fixing support 2 is installed, the first clamping section 221 is bent and deformed towards the direction away from the inner wall of the upper shell a1 by force, so that the first clamping section 221 is not contacted with the inner wall of the upper shell a1, after the support body 21 is completely inserted, the first clamping section 221 is loosened, and at the moment, the first clamping section 221 is abutted against the inner wall of the upper shell a1 under the action of elastic force for recovering the shape of the first clamping section 221, so that the fixing support 2 on the upper shell a1 is realized. When the battery 3 is mounted, the second clamping section 222 is bent towards a direction away from the battery 3 by force, after the battery 3 is placed in one side of the bracket body 21 towards the lower shell body b1, the second clamping section 222 is loosened, and at the moment, the second clamping section 222 is abutted against the battery 3 under the action of elastic force for recovering the shape of the second clamping section 222, so that the battery 3 is fixed on the fixed bracket 2. So set up, utilize the positive and negative elastic deformation of elasticity buckle 22, can realize the two-way fixed of fixed bolster 2, under the condition that need not use mounting such as screw, can assemble battery 3 on last shell body a1 through fixed bolster 2, have installation easy operation, low in production cost's advantage. In an alternative embodiment, the first and second clamping sections 221 and 222 may also be two elastic fasteners formed on the bracket body 21 independently.

In this embodiment, a clamping hole 223 is formed on one side of the first clamping section 221 adjacent to the second clamping section 222, and a clamping body 12 is protruding from the inner wall of the closed end of the upper housing 1 a. After the bracket body 21 is inserted in place, the clamping body 12 stretches into the clamping hole 223 and abuts against the hole wall of the clamping hole 223, and the clamping hole 223 and the clamping body 12 are arranged, so that the fixed bracket 2 can be prevented from being easily pulled out along the reverse direction of the insertion direction, and the stability of the installation structure of the fixed bracket 2 is improved. Specifically, in order to facilitate that the bracket body 21 is not caught when passing through the catch body 12, the upper end of the catch body 12 is provided with a sloped guide surface.

In the present embodiment, the first fastening section 221 is further integrally formed with a stiffener 2211, and the stiffener 2211 extends perpendicular to the bracket body 21 toward the lower housing 1 b. The stiffening rib 2211 can enhance the structural strength of the first clamping section 221, and prevent the first clamping section 221 from being damaged when being deformed under force.

In the present embodiment, the second clamping section 222 includes an elastic abutment wall 2221 integrally formed with the first clamping section 221 at one end and adapted to abut against the side wall of the battery 3, a pressing wall 2222 integrally formed at one end of the elastic abutment wall 2221 away from the first clamping section 221 and extending away from the battery 3, and a limit pressing block 2223 integrally formed on the pressing wall 2222 and extending above the battery 3. After the battery 3 is mounted on the bracket body 21, the limit pressing block 2223 is blocked at one side of the battery 3 facing away from the bracket body 21, so as to better fix the mounted battery 3. The pressing wall 2222 is provided to facilitate the pressing operation of the elastic buckle 22. In an alternative implementation manner of this embodiment, the second clamping section 222 may not be provided with a limiting pressing block 2223, and the limiting battery 3 that the limiting pressing block 2223 plays may be replaced by other components on the bracket body 21.

In the present embodiment, a groove 2225 is formed on a side surface of the pressing wall 2222 remote from the holder body 21, and the groove 2225 is provided so as to press the pressing wall 2222.

In this embodiment, the bracket body 21 is further integrally formed with a flange structure 24 and a flange member 25, the flange structure 24 is located at the other end of the bracket body 21 away from the elastic buckle 22, the flange member 25 is located on the other two sides of the bracket body 21, and the flange structure 24, the flange member 25 and the second clamping section 222 of the elastic buckle 22 are jointly combined at one side of the bracket body 21 facing the lower housing body 1b to form an installation space for installing the battery 3. When the second clamping section 222 of the elastic buckle 22 is elastically abutted against the side wall of the battery 3, the other end of the battery 3 is pressed on the flange structure 24, so that the battery 3 is fixed on the fixed support 2, the flange pieces 25 on two sides are blocked on the other two sides of the battery 3, and the battery 3 can be prevented from being separated from the fixed support 2.

Specifically, the flange structure 24 includes a side baffle 241 integrally formed on the side of the holder body 21 and extending away from the housing body 1a, and an upper pressing block 242 integrally connected to the side baffle 241 and extending above the battery 3. After the battery 3 is fixed to the fixing bracket 2, the side baffle 241 is stopped against an end of the battery 3 remote from the elastic buckle 22, and the upper pressing block 242 is pressed against a side of the battery 3 facing away from the bracket body 21. The flange member 25 is provided with a plurality of flange clips 251 which are pressed above the battery 3 and are integrally formed on part of the flange member 25.

In this embodiment, the support hanging structure includes six fixing buckles 11 formed on the inner wall of the upper housing body 1a, six fixing buckles 23 on the support body 21 are also provided, and the six fixing buckles 23 and the six fixing buckles 11 are buckled with each other at six different positions one by one, so that the hanging setting of the fixing support 2 on the inner wall of the upper housing body 1a is realized. Specifically, the fixing buckle 11 is provided with a buckle hanging groove, the fixing buckle 23 is provided with a clamping head extending into the buckle hanging groove and being connected with the buckle hanging groove in a clamping mode, the six buckle hanging grooves are open notches towards the direction of the open side of the shell body 1, the clamping head on the fixing buckle 23 is inserted into the buckle hanging groove from the open notches to be connected in a clamping mode, and the buckling directions of the buckle hanging groove and the clamping head are set along the connecting line direction of the upper shell body 1a of the support body 21.

Specifically, the fixed hanging buckle 11 includes a first hanging buckle wall 111, a second hanging buckle wall 112 and a third hanging buckle wall 113 that enclose to form a hanging buckle groove, the first hanging buckle wall 111 and the second hanging buckle wall 112 are both connected to the inner wall of the upper shell 1a and are vertically connected to each other, and the third hanging buckle wall 113 is vertically connected to one side, far away from the shell 1, of the first hanging buckle wall 111 and the second hanging buckle wall 112. Further, the fixed buckle 11 further includes a buckle stiffener 114, and the buckle stiffener 114 is connected between the first buckle wall 111 and the upper housing body 1a, and between the first buckle wall 111 and the upper housing body 1 a. The hanging buckle stiffening arm 114 can strengthen the structural strength of the fixed hanging buckle 11 and prevent the fixed buckle 23 from deforming.

In the embodiment, a plurality of positioning pins 14 are further arranged on the inner wall of the upper shell body 1a, and positioning pin holes are formed in the support body 21 and are strip-shaped holes. The positioning pin 14 passes through the key plate 5 and extends into the positioning pin hole. The key board 5 is conveniently fixed on the bracket body 21, so that the compact design is facilitated.

The assembly process of the handheld detection instrument comprises the following steps:

assembling an upper shell a1 assembly: firstly, a flexible key board 5 and an auxiliary key structure are arranged on a positioning pin 14 of an upper shell a1, then a fixed support 2 is placed above the key board 5, then an elastic buckle 22 is forcefully bent and deformed in a direction away from the inner wall of the upper shell a1, so that a first clamping section 221 is not contacted with the inner wall of the upper shell a1, the fixed support 2 is pushed towards the closed end direction of the upper shell a1, six fixed buckles 23 on the fixed support 2 and six fixed hanging buckles 11 on the inner wall of the upper shell a1 are buckled with each other one by one, after a support body 21 is inserted in place, the elastic buckle 22 is released, and at the moment, the first clamping section 221 of the elastic buckle 22 is propped against the inner wall of the upper shell a1 under the action of elastic force restoring the shape of the elastic buckle 22, so that the fixed support 2 is fixed on the upper shell a 1; then the elastic buckle 22 is forcibly broken outwards to give up the installation space of the battery 3, after the battery 3 is put on the bracket body 21, the elastic buckle 22 is loosened again, at the moment, the second clamping section 222 of the elastic buckle 22 is propped against the battery 3 under the action of elastic force for recovering the shape of the second clamping section, the battery 3 is fixed on the fixed bracket 2, the assembly process of the upper shell a1 component is completed, and the whole assembly process of the upper shell a1 component is not required to be fixed by using screws.

Assembling a lower shell b1 assembly: the NFC coil 7 and the wireless charging module 6 connected with the main board 4 are firstly installed in the installation groove corresponding to the inner wall of the lower shell b1, and then the main board 4 is fixed on the lower shell b1 through screws.

And (3) integrally assembling: the flexible circuit board 51 connected to the key board 5 is connected to the main board 4, then the upper shell a1 and the lower shell b1 are mutually buckled and fixed together, and finally the sound head assembly 8 is glued and fixed at the open end of the shell 1, so that the whole assembly of the handheld detection instrument is realized.

The assembly mode of the handheld detection instrument has the advantages of few screws, easy assembly and low production cost.

Example two

A hand-held detecting instrument as shown in fig. 14 to 20, comprising a housing 1, a fixed bracket 2, a key board 5 and a battery 3; in order to avoid excessive repetition, only the main differences between the second embodiment and the first embodiment will be described below, and the remaining undescribed parts default to be the same or equivalent to the first embodiment, so long as they do not conflict with each other.

In this embodiment, the key sheet 5 is a hard circuit board, and three keys 9 are arranged side by side in a concentrated manner. A key plate mounting groove 27 is formed in one side surface of the bracket body 21 facing the upper shell body a1, and the bottom of the key plate 5 is embedded in the key plate mounting groove 27; the key plate mounting groove 27 is provided to facilitate positioning of the key plate 5, so that there is no need to provide a positioning pin for positioning the key plate 5 on the upper case body a1, and there is no need to provide a corresponding positioning pin hole on the fixing bracket 2.

In the present embodiment, the charging coil mounting groove 28 is provided on a side surface of the holder body 21 facing the upper case body a1, and the wireless charging module 6 mounted on the charging coil mounting groove 28 is electrically connected with the main board 4 through an electric wire. The lower shell b1 does not need to be provided with a charging coil mounting groove, so that the supporting function of the fixed support 2 can be further enriched, the volume of the shell 1 is not increased on the basis of supporting the wireless charging function, and the compact design of the internal components of the handheld detection instrument is realized.

In this embodiment, the clip body 12 is located at the open side of the upper housing body 1a, and correspondingly, the elastic buckle 22 on the bracket body 21 is located at one end of the bracket body 21 near the open end of the upper housing body 1 a. In order to facilitate that the bracket body 21 is not blocked when passing through the blocking body 12, the upper end surface of the blocking body 12 is designed to be a cambered surface. In an alternative implementation manner of this embodiment, the elastic buckle 22 may not be provided with the clamping hole 223, but only the outer protruding clamping body 12 is provided on the inner wall of the upper housing 1a, and after the bracket body 21 is inserted in place, the clamping body 12 is blocked on the side of the second clamping section 222 facing away from the bracket body 21, so that the limiting and fixing of the fixing bracket 2 can be realized.

In this embodiment, the elastic abutment wall 2221 and the pressing wall 2222 are arranged perpendicular to each other, two stiffening arms 2224 are integrally formed between the elastic connection arm and the pressing wall 2222, and the two stiffening arms 2224 are arranged in parallel and perpendicular to the elastic abutment wall 2221 and the pressing wall 2222. The provision of the stiffener 2224 can enhance the connection strength of the elastic abutment wall 2221 and the pressing wall 2222, preventing the pressing wall 2222 from being damaged during the pressing process.

In this embodiment, the bracket hanging structure includes seven fixing buckles 11 formed on the inner wall of the shell 1, seven fixing buckles 23 on the bracket body 21 are also provided, and the seven fixing buckles 23 and the seven fixing buckles 11 are buckled with each other at seven different positions one by one, so that the hanging arrangement of the fixing bracket 2 on the inner wall of the upper shell 1a is realized. Specifically, the fixing buckle 11 is provided with a buckle hanging groove, the fixing buckle 23 is provided with a clamping head extending into the buckle hanging groove and being clamped with the buckle hanging groove, seven buckle hanging grooves are open notches towards the direction of the open side of the shell body 1, the clamping head on the fixing buckle 23 is inserted into the buckle hanging groove from the open notches to realize the clamping connection, and the buckling directions of the buckle hanging groove and the clamping head are set along the connecting line direction of the upper shell body 1a of the support body 21.

Specifically, the fixed hanging buckle 11 includes a first hanging buckle wall 111, a second hanging buckle wall 112 and a third hanging buckle wall 113 that enclose to form a hanging buckle groove, the first hanging buckle wall 111 and the second hanging buckle wall 112 are both connected to the inner wall of the upper shell 1a and are vertically connected to each other, and the third hanging buckle wall 113 is vertically connected to one side, far away from the shell 1, of the first hanging buckle wall 111 and the second hanging buckle wall 112. In some forms of the securing clasp 11, the securing clasp 11 may include only the first clasp wall 111 and the third clasp wall 113, or only the second clasp wall 112 and the third clasp wall 113.

In this embodiment, the inner wall of the housing 1 is also integrally formed with a limit edge 13, and the limit edge 13 is suitable for blocking on the side wall of the bracket body 21; when the fixing bracket 2 is inserted in place, the limiting edges 13 are flush with the three side walls of the bracket body 21 to limit the side walls of the bracket body 21. The part of the fixed hanging buckle 11 further comprises a hanging buckle stiffening arm 114, wherein the hanging buckle stiffening arm 114 is connected between the first hanging buckle wall 111 and the shell body 1, or the hanging buckle stiffening arm 114 is connected between the second hanging buckle wall 112 and the shell body 1, or the hanging buckle stiffening arm 114 is connected between the first hanging buckle wall 111 and the shell body 1, or the second hanging buckle wall 112 and the shell body 1, or the hanging buckle stiffening arm 114 is connected between the first hanging buckle wall 111 and the limiting edge 13. The hanging buckle stiffening arm 114 can strengthen the structural strength of the fixed hanging buckle 11 and prevent the fixed buckle 23 from deforming.

In this embodiment, a rib 26 is further disposed on a side of the support body 21 facing the inner wall of the housing 1, and the fixing buckle 11 is located at a position where the rib 26 is disposed on the support body 21 or at a position where a plurality of ribs 26 meet. By the arrangement, the structural strength of the fixed hanging buckle 11 can be enhanced, and the fixed hanging buckle 11 is prevented from being deformed.

The assembly process of the handheld detection instrument comprises the following steps:

assembling an upper shell assembly: firstly, a hard key board 5, an accessory key structure and a wireless charging module 6 are arranged in a corresponding mounting groove of a fixed support 2, then the fixed support 2 is placed in an upper shell a1, then an elastic buckle 22 is forcefully bent and deformed in a direction away from the inner wall of the upper shell a1, a first clamping section 221 is not contacted with the inner wall of the upper shell a1, the fixed support 2 is pushed towards the closed end direction of the upper shell a1, seven fixed buckles 23 on the fixed support 2 and seven fixed hanging buckles 11 on the inner wall of the upper shell a1 are buckled with each other one by one, after a support body 21 is inserted in place, the elastic buckle 22 is loosened, and at the moment, the first clamping section 221 of the elastic buckle 22 is abutted against the inner wall of the upper shell a1 under the action of elastic force restoring the shape of the support body 21, so that the fixed support 2 is fixed on the upper shell a 1; then the elastic buckle 22 is forcibly broken outwards to give up the installation space of the battery 3, after the battery 3 is put into the bracket body 21, the elastic buckle 22 is loosened again, at the moment, the second clamping section 222 of the elastic buckle 22 is propped against the battery 3 under the action of elastic force for recovering the shape of the second clamping section, the battery 3 is fixed on the fixed bracket 2, the assembly process of the upper shell assembly is completed, and the whole assembly process of the upper shell assembly is not required to be fixed by using screws.

Assembling a lower shell assembly: the main plate 4 is directly fixed to the lower case b1 by screws.

And (3) integrally assembling: the key board 5 and the wireless charging module 6 are electrically connected to the main board 4, then the upper shell a1 and the lower shell b1 are mutually buckled and fixed together, and finally the sound head assembly 8 is glued and fixed at the open end of the shell 1, so that the whole assembly of the handheld detection instrument is realized.

The assembly mode of the handheld detection instrument has the advantages of few screws, easy assembly and low production cost.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the utility model.

Claims (16)

1. A hand-held detecting instrument, which is characterized by comprising a shell body (1) with a mounting cavity inside, a fixed bracket (2), a key board (5) and a battery (3) which are positioned in the mounting cavity; the fixed support (2) is connected with the shell body (1), and the key board (5) and the battery (3) are arranged on two opposite sides of the fixed support (2).

2. The hand-held instrument according to claim 1, wherein the housing (1) comprises an upper housing (1 a) and a lower housing (1 b) which are connected to each other and enclose the mounting cavity, the upper housing (1 a) is provided with a key (9), the key board (5) is mounted on one side of the fixing bracket (2) facing the upper housing (1 a), and the battery (3) is mounted on the other side of the fixing bracket (2) facing the lower housing (1 b).

3. The handheld detection instrument according to claim 2, characterized in that a main board (4) is further provided in the mounting cavity of the housing (1), the main board (4) being located at a side of the battery (3) facing the lower housing (1 b).

4. The hand-held instrument according to claim 2, wherein the inner wall of the upper housing body (1 a) is formed with a bracket hanging structure; the fixed support (2) comprises a support body (21) and a plurality of fixed buckles (23) which are convexly arranged on one side of the support body (21) facing the upper shell body (1 a); the fixing buckles (23) are connected to the support hanging structure, so that a mounting gap suitable for mounting the key board (5) is formed between the support body (21) and the inner wall of the upper shell body (1 a).

5. A hand-held instrument according to claim 4, characterised in that a side of the holder body (21) facing the upper housing body (1 a) is provided with a key-board mounting groove (27) adapted to mount the key-board (5).

6. The handheld detecting instrument according to claim 4, wherein a charging coil mounting groove is further formed in a side surface of the bracket body (21) facing the upper housing body (1 a), and a wireless charging module (6) is mounted on the charging coil mounting groove.

7. The handheld detection instrument according to claim 4, characterized in that the fixing bracket (2) comprises a first clamping section (221) with elasticity, the first clamping section (221) elastically butts against the inner wall of the upper shell body (1 a) to fix the bracket body (21) on the bracket hanging structure.

8. The handheld detection instrument according to claim 7, characterized in that the fixing bracket (2) further comprises a second clamping section (222) with elasticity, the second clamping section (222) elastically abutting against the battery (3) to fix the battery (3) on the bracket body (21).

9. The hand-held instrument according to claim 8, wherein the first and second clamping sections (221, 222) are integrally formed resilient catches (22); one end of the first clamping section (221) is connected to the support body (21), the other end of the first clamping section is inclined to the direction of the inner wall of the upper shell body (1 a) to be bent, and one end of the second clamping section (222) is connected to one end of the first clamping section (221) away from the support body (21), and the other end of the second clamping section is bent to the direction of the inner wall of the lower shell body (1 b).

10. The hand-held instrument according to claim 8, wherein a side of the holder body (21) remote from the second clamping section (222) is provided with a flange structure (24), and the second clamping section (222) and the flange structure (24) cooperate to fix the battery (3).

11. The hand-held instrument according to claim 4, wherein the bracket hanging structure comprises at least one fixing clasp (11) fixed on the inner wall of the upper housing body (1 a), and the fixing clasp (23) and the fixing clasp (11) are buckled with each other along the connecting line direction of the bracket body (21) and the upper housing body (1 a).

12. A hand-held instrument according to claim 3, characterised in that the functional module element (41) on the main board (4) is located on the side of the main board (4) facing the lower housing body (1 b).

13. The handheld detection instrument according to claim 2, wherein a charging coil mounting groove is formed in the inner wall of the lower housing body (1 b), and a wireless charging module (6) is mounted on the charging coil mounting groove.

14. The handheld detection instrument according to claim 2, wherein an NFC coil mounting groove (16) is formed in the inner wall of the lower housing body (1 b), and an NFC coil (7) is mounted in the NFC coil mounting groove (16).

15. The handheld detection instrument according to claim 2, further comprising an antenna (10), the antenna (10) being arranged proximate to an inner wall of the upper housing body (1 a).

16. The hand-held instrument according to claim 2, further comprising a sound head assembly (8), the housing (1) having an open end and a closed end, the stationary support (2) being adapted to be inserted from the open end of the housing (1) into a mounting cavity in the housing (1), the sound head assembly (8) being connected to the open end of the housing (1) to close the mounting cavity.