WO2016123878A1

WO2016123878A1 - Handheld rangefinder

Info

Publication number: WO2016123878A1
Application number: PCT/CN2015/078240
Authority: WO
Inventors: 蒋洪洲
Original assignee: 金华马卡科技有限公司
Priority date: 2015-02-03
Filing date: 2015-05-05
Publication date: 2016-08-11
Also published as: CN104597437A

Abstract

A handheld rangefinder, comprising a main body structure (2), a lens base (1) and a main board mechanism (3), the main body structure (2) and the lens base (1) being split structures. The main board mechanism (3) comprises a main board assembly (31) and a main board support frame (32) supporting the main board assembly (31), one end of the main board support frame (32) being connected to the main body structure (2). The handheld rangefinder has a simple structure, the main body structure (2) and the lens base (1) are split structures, production efficiency is significantly increased, and a lens may be replaced according to the model, so that the main body structure (2) has good applicability and is suitable for more products with different requirements.

Description

Handheld range finder

Technical field

The invention relates to the field of measuring instruments, in particular to a hand-held range finder.

Background technique

In recent years, laser ranging has been widely used in the measurement of distance, and laser range finder has become an important tool for distance measurement. The principle is that a laser transmitter emits a pulse signal to the target, and then a low The noise, high-sensitivity laser receiver receives the signal reflected by the target, and uses the received reflected signal to calculate the distance of the target. The principle can be expressed by the formula: L=Td*C/2, wherein , L is the distance of the object to be tested, Td is the time delay between the transmitted pulse signal and the received pulse signal, C is the light propagation speed, and only the delay time Td is measured, then the distance L of the target to be tested can be get. According to this principle, a laser range finder, especially a hand-held laser range finder, is widely used in the construction industry due to its small size, light weight and high precision, and is favored by users.

In the prior art, the hand-held range finder also has the following defects: (1) The housing of the lens holder and the range finder is an integrated structure. In the production process of the range finder, since the lens needs to be installed after installation The glue is fixed on the lens holder, and the glued lens needs to be placed for a long time to dry to be completely fixed, which will seriously affect the processing of the subsequent processes of the range finder, thereby greatly reducing the production efficiency of the range finder; The housing requires high precision, high production cost, and the lens holder is a one-piece structure relative to the housing. The lens holder cannot be replaced according to the model. The housing cannot be used universally, and the applicability is poor, thereby greatly increasing the manufacturing cost; (2) existing The main board is fixed directly on the housing at one end, and the outer cover is covered on the outside. Since the main board is a long strip structure, there will be uneven force and deformation, and the main board is the most nuclear rangefinder. The part of the heart, the deformation or damage of the motherboard will seriously affect the accuracy of the measurement or even the rangefinder can not be measured; in addition, the installation of the motherboard is directly mounted on the housing, no positioning around, in the long-term use, the motherboard is easy to loose, display The screen is easy to fall, which further affects the accuracy of the measurement and even the range finder cannot measure and affect the measurement of the range finder; (3) The internal structure of the range finder is covered by the upper and lower covers, and the existing upper The inner structure of the lower cover and the range finder is connected by a mating relationship. In long-term use, the internal structure will sway relative to the upper and lower covers, and the structure is not stable, thereby affecting the accuracy of the measurement; (4) in progress When the components are installed, since the mounting accuracy of the transmitting unit and the receiving unit is extremely high, especially the transmitting unit, in the laser range finder, the general transmitting unit is a laser component, and the position of the emitted light directly affects the measurement result, so the transmitting unit The position must be precise, so adjustments must be made to all directions to ensure the accuracy of the installation, but in the prior art, the transmitting unit and the receiving unit are Generally, the transmitting unit and the receiving unit are pushed laterally from the rear of the housing into the corresponding mounting cavity, and the installation is troublesome, and the pushing from the side into the mounting cavity can only adjust the front and rear positions, up and down, left and right positions. The adjustment is inconvenient and even impossible to adjust, so that the mounting accuracy of the transmitting unit and the receiving unit cannot be guaranteed.

Summary of the invention

The invention aims at the deficiencies in the prior art, and provides a hand-held range finder with a simple structure, a main structure and a lens holder as a split structure, which greatly improves the production efficiency, and the lens can be replaced according to the model, so that the main structure Applicability is good, and more products with different requirements are applicable.

In order to solve the above technical problems, the present invention is solved by the following technical solutions:

A handheld range finder includes a main body structure, a lens holder and a main plate mechanism, wherein the main body structure and the lens holder are a split structure; the main board mechanism includes a main board assembly and a main board support frame supporting the main board assembly, One end of the main board support frame is connected to the main body structure.

Preferably, the lens holder comprises a lens holder body and a connection provided on the inner side of the lens holder body The front end of the main body structure is provided with a mounting hole that cooperates with the connecting member. When the lens holder is connected to the main body structure, the connecting member of the lens holder is embedded in the mounting hole of the main body structure for positioning.

Preferably, the lens holder body is provided with a mounting window for lens mounting, and two ends of the lens holder body are respectively provided with at least one connecting hole, and a front end of the main body structure is provided with a matching hole. The connecting hole 2, the main body structure and the lens holder body are connected to the connecting hole 1 and the connecting hole 2 through the fastener.

The connecting member provided in the lens holder of the present invention is embedded in the mounting hole of the main body structure for positioning, and then the fixing of the main body structure and the lens holder body by the fastener penetrating into the connecting hole 1 and the connecting hole 2, The connection is stable. In the production process of the range finder, after the lens is mounted on the installation window, the lens is fixed on the lens holder by glue, and the lens after being glued is dried for one time and then completely fixed to the lens holder. Since the lens holder of the present invention is a split structure relative to the main body structure, the lens does not affect other subdivision processes during the drying process, for example, the firing unit, the receiving unit, and the like can be processed in the drying process of the lens, thereby The production efficiency of the range finder is greatly improved; since the lens holder is separated from the main body structure, the lens can be replaced at any time according to the needs of the object to be tested, and the operation is simple, and the main structure can be applied to different types of range finder, applicability Well, the manufacturing cost is greatly reduced.

Preferably, the main board support frame includes a connecting portion connected to the main body structure and a supporting portion supporting the main board assembly, the supporting portion is symmetrically disposed with respect to the connecting portion, and the main body structure is provided with a connecting hole 3, the connecting portion The connecting hole 4 is matched with the three-phase matching hole of the connecting hole, and the main body structure and the main board supporting frame are connected by the fastener penetrating into the connecting hole 3 and the connecting hole 4.

Preferably, the supporting portion is provided with a connecting hole 5 connected to the main board assembly, and the main board assembly is provided with a connecting hole 6 matched with the connecting hole 5. The main board assembly and the main board supporting frame are fastened The pieces are inserted into the connecting hole 5 and connected to the connecting hole 6.

The motherboard component of the invention is supported by the motherboard support frame, has a simple structure, and the motherboard component is stressed. Uniform, not easy to deform, to ensure reliable installation of the motherboard components, stable structure, greatly improving the stability and accuracy of the measurement; with a motherboard support frame, can be applied to the installation of different types of motherboard components, a wide range of applications.

Preferably, the two sides of the main body structure are symmetrically provided with a connecting hole 7 connected to the casing.

The housing and the main structure are also fixedly connected by the fasteners penetrating into the connecting holes 7, and the operation is convenient, thereby further ensuring the stability and reliability of the range finder structure.

Preferably, the method further includes a transmitting mechanism including a transmitting component and a transmitting channel for emitting the transmitting component, wherein the main body structure is provided with a placing cavity for the transmitting component; the upper end and the lower end of the transmitting component One of the left end and the right end is adjusted in its relative position in the placement chamber by an adjustment device, and the opposite end is provided with a buffer structure.

Preferably, the adjusting device comprises an adjusting member and an adjusting through hole provided on the main body structure for the adjusting member to pass through; the buffering structure is a cushioning member made of a soft material.

When the installation of the transmitting component is performed, the transmitting component is placed from the rear side in the placing cavity 1 on the main structure, and the front and rear positions of the transmitting component can be adjusted, and the left and right positions of the transmitting component are adjusted by the adjusting device. One side of the other side is provided with a buffering member with a buffering function, and the adjustment of the left and right and up and down positions of the transmitting component can be conveniently adjusted and accurately positioned by the adjusting device, thereby ensuring the mounting accuracy of the transmitting component; The transmitting component can also be fixed to ensure the stability and reliability of the mounting of the transmitting component. Since the transmitting component can be adjusted in various directions to ensure the accuracy of the mounting position, the dimensional accuracy requirement of the placement cavity 1 is low, and the cost is greatly saved.

Preferably, the receiving unit further comprises a mounting cavity for mounting the upper end of the receiving unit, and the upper end of the receiving unit is embedded in the mounting cavity and connected to the mainboard component.

The receiving board of the receiving unit needs to be soldered with the main board of the main board assembly, the upper end of the receiving board is embedded in the mounting cavity on the main board, and then soldered, and soldered from the open end of the upper part of the mounting cavity, the main board and the main board The receiving plates are fastened and welded together, so that the two are simply soldered, and the main board and the receiving board are placed by inserting, so that the connection between the main board and the receiving board is stable.

Preferably, the main body structure is further provided with a positioning mechanism for positioning the front end of the main board assembly, and the positioning mechanism includes a boss disposed on the main body structure.

The boss provided on the main body structure is used for positioning the main board on the one hand, and the main board is connected to the upper part of the main structure, and the front end is positioned by the boss to ensure the accuracy of the mounting position of the main board; the convexity disposed above the vertical emission channel The height of the table is equal to or slightly higher than the thickness of the main board, and can separate the emitted light from the emitted light and the stray light entering from the outer side of the transmitting channel. The light is blocked and absorbed by the boss, so that the light entering the interior It is weaker or even completely blocked. No reflected light and stray light enter the receiving unit, and it is not received by the receiving unit, so it does not affect the measurement of the target, and the accuracy of the measured value is greatly improved. The accuracy of the range finder.

The additional aspects and advantages of the invention will be set forth in part in the description which follows.

DRAWINGS

The drawings described herein are intended to provide a further understanding of the invention, and are intended to be a part of the invention. In the drawing:

1 is a schematic structural view of an embodiment of a handheld range finder according to the present invention;

2 is a schematic structural view of a main structure of the present invention;

Figure 3 is a schematic structural view 1 of the lens holder of the present invention;

Figure 4 is a schematic structural view 2 of the lens holder of the present invention;

5 is a schematic structural view of an embodiment of a range finder for removing a motherboard component according to the present invention;

6 is a schematic structural view of a motherboard support frame according to the present invention;

Figure 7 is a schematic structural view of a transmitting assembly provided with an adjusting device according to the present invention;

Figure 8 is a plan view of the main structure of the present invention.

detailed description

The technical solutions of the embodiments of the present invention will be clearly and completely described in the following with reference to the accompanying drawings. It is apparent that the described embodiments are part of the embodiments of the invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the described embodiments of the present invention without departing from the scope of the invention are within the scope of the invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation or position of indications such as "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. The relationship is based on the orientation or positional relationship shown in the drawings, and is merely for the convenience of the description of the invention and the simplification of the description, and does not indicate or imply that the device or component referred to has a specific orientation, is constructed and operated in a specific orientation, and thus It is not to be understood as limiting the invention.

Moreover, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, features defining "first" and "second" may include one or more of the features either explicitly or implicitly. In the description of the present invention, the meaning of "a plurality" is two or more unless specifically and specifically defined otherwise.

In the present invention, the terms "installation", "connected", "connected", "fixed" and the like shall be understood broadly, and may be either a fixed connection or a detachable connection, unless explicitly stated and defined otherwise. , or connected integrally; may be mechanical connection or electrical connection; may be directly connected, or may be indirectly connected through an intermediate medium, and may be internal communication between the two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.

In the present invention, the first feature is "on" the second feature unless otherwise explicitly stated and defined. Or "below" may include direct contact of the first and second features, and may also include that the first and second features are not in direct contact but are contacted by additional features therebetween. Moreover, the first feature "above", "above" and "above" the second feature includes the first feature directly above and above the second feature, or merely indicating that the first feature level is higher than the second feature. The first feature "below", "below" and "below" the second feature includes the first feature directly below and below the second feature, or merely the first feature level being less than the second feature.

Unless otherwise defined, technical terms or scientific terms used herein shall be taken to mean the ordinary meaning of the ordinary skill in the art to which the invention pertains. The words "first", "second" and similar terms used in the specification and claims of the present invention do not denote any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the words "a" or "an" and the like do not denote a quantity limitation, but mean that there is at least one.

As shown in FIG. 1-8, as a embodiment of the present invention, a handheld range finder includes a main body structure 2, a lens holder 1 and a main board mechanism 3. The main body structure 2 and the lens holder 1 are separated structures. In the embodiment, the lens holder 1 includes a lens holder body 11 and a connecting member 13 disposed on the inner side of the lens holder body 11. Since the main body structure 2 is an injection molded part, the connecting member 13 is fixedly disposed on the lens holder body. The column-shaped connecting column on the 11 is integrally formed with the main body structure 2. In this embodiment, the connecting post is mainly used for positioning when the lens holder 1 is connected with the main body structure 2, so in order to ensure the positioning and the connection are stable, the connecting post is disposed on the diagonal of the lens holder body 11 along the diagonal line. It can be disposed on only one diagonal line. Of course, it can be set along two diagonal lines from the viewpoint of stable positioning and reliability. The present invention is not limited to the position setting of the embodiment, such as setting on the lens holder body. The middle position is also feasible. A front end of the main body structure 2 is provided with a mounting hole 22 that cooperates with the connecting member 13.

When connected, as shown in FIG. 1-3, the connecting member 13 of the lens holder 1 is embedded in the mounting hole 22 of the main body structure 2, and the end surface 12 of the lens holder 1 and the end surface of the main board mechanism 3 are 21 is attached, and at least one connecting hole 14 is respectively disposed at two ends of the lens holder body 11 The front end of the main body structure 2 is provided with a connecting hole 23 matching with the connecting hole 14 , and the fastener penetrates into the connecting hole 14 and the connecting hole 23 to fix the main body structure 2 and the lens holder body 11 in a fixed manner. together. The structure obtained after the connection is stable, the operation is simple, and the disassembly is convenient. As shown in FIG. 4, the lens holder body 11 corresponding to the position of the connecting hole 14 of the present invention is provided with a 沉-shaped counterbore seat 17, so that the fastener is easy to install and disassemble, and the outer end of the fastener is fixed. Located in the counterbore seat 17, it does not affect the measurement of the rangefinder, and the rangefinder is beautiful.

The lens holder body 11 is provided with a mounting window 15 for lens mounting. After the lens is mounted on the mounting window 15, the outer end of the lens holder body 11 is further provided with a reinforcing rib 16 at the edge of the mounting window 15. For reinforcing the strength of the installation window 15, the protruding rib 16 protrudes from the plane of the installation window 15 to a certain height, and can prevent other objects from touching the lens and causing scratches or damage to the lens, that is, strengthening and Protect the role of the lens. The rib 16 of the present invention and the lens are mounted in an arc shape matching the shape of the lens. When the lens is mounted from the mounting window 15 therein, the lens is prevented from being accidentally touched by the lens and the lens is scratched or Damage, etc. The lens is fixed to the lens holder 1 by glue, and the glued lens is dried for a time and then completely fixed to the lens holder 1.

Since the lens holder 1 of the present invention is a split structure with respect to the main body structure 2, the lens does not affect other subdivision processes during the drying process, for example, the processing of the emission unit, the receiving unit, and the like and the main structure 2 can be performed during the drying process of the lens. Therefore, the production efficiency of the range finder is greatly improved; since the lens holder is separated from the main body structure 2, the lens can be replaced at any time according to the needs of the object to be measured, and the operation is simple, and the main structure 2 can be applied to different types of distance measurement. Instrument, good applicability, greatly reducing manufacturing costs.

As shown in FIG. 1, the main board mechanism 3 includes a main board assembly 31 and a main board support frame 32 supporting the main board assembly 31. One end of the main board support frame 32 is connected to the main body structure 2. As shown in FIG. 6, in the embodiment of the present invention, the main board support frame 32 includes a connecting portion 321 connected to the main body structure 2 and a supporting portion 322 supporting the main board assembly 31, and the supporting portion 322 is connected. The main body structure 2 is provided with a connecting hole three 24, and the connecting portion 321 is provided with a connecting hole 323 matching the connecting hole three 24, the main body structure 2 and the main board supporting frame 32 The connecting portion 324 is connected to the connecting hole 323 and the connecting hole 323. The supporting portion 322 is provided with a connecting hole 325 connected to the main board assembly 31. In this embodiment, the supporting portion 322 is provided. The protrusion 324 formed by being bent with respect to the supporting portion 322 functions as a reinforcement, and the connecting hole 325 is disposed on the protruding block 324, and the main board assembly 31 is provided with a connection with the connecting hole 325. In the sixth hole, the main board assembly 31 and the main board support frame 32 are connected by a fastener penetrating connection hole 325 and a connecting hole 6. In the present invention, the material of the main board support frame 32 is preferably galvanized sheet or stainless steel, which can ensure the strength of the structure. Of course, other materials having the bearing strength according to the present invention are also feasible. In order to reduce the overall weight of the range finder, it is easy to hold, generally galvanized sheet or stainless steel with a thickness of about 1.0 mm. The main board assembly 31 of the present invention is supported by the main board support frame 32, has a simple structure, and the main board assembly 31 is evenly stressed and is not easily deformed, thereby ensuring reliable installation of the main board assembly 31 and stable structure, thereby greatly improving the stability and accuracy of measurement. The motherboard support frame 32 is provided, and the motherboard components 31 of different models can be replaced. The size of the positioning holes connected to the motherboard support frame 32 on the main board is the same, and the motherboard components of different specifications and models can be replaced, and the application range is wide.

As shown in FIG. 2, the main structure 2 of the present invention is symmetrically disposed on the side thereof with a connecting hole VII 25 connected to the casing, and the outer casing and the main body structure 2 are carried out by the fastener penetrating into the connecting hole VII25. The fixed connection and convenient operation further ensure the stability and reliability of the range finder structure.

As shown in FIG. 5, further comprising a transmitting mechanism 4 comprising a transmitting component and a transmitting channel for transmitting by the transmitting component, wherein the transmitting mechanism 4 is an overview, specifically comprising a transmitting component 41 for transmitting in a target direction, The emission component 41 in the laser range finder is basically a laser component, which is realized by a semiconductor laser diode, and may be other light sources. As shown in FIG. 2, the main structure 2 is provided with a placement cavity 26 for the emission assembly. When installed, the emission assembly 41 is placed on the main structure 2 from the rear side. In order to facilitate the installation and disassembly, and also to obtain a simple structure of the range finder, in the present invention, as shown in FIG. 7, An adjusting device 5 is disposed at a lower end of the transmitting component 41, that is, a bottom portion of the main structure 2, and a buffering member is disposed at an upper end of the transmitting component 41. Therefore, the right side of the transmitting component 41, that is, the main structure 2 An adjusting device 5 is disposed on the right outer position, and a buffering member is disposed on the left side of the transmitting component 41. The adjusting device 5 of the present invention passes through the adjusting member 51, such as an adjusting screw, through the adjusting passage provided on the main body structure 2. The holes 27 are used to adjust the position of the launching assembly 41 up and down, left and right.

When the mounting of the transmitting component 41 is performed, the transmitting component 41 is placed from the rear side in the receiving cavity 26 of the main structure 2, and the front and rear positions of the transmitting component can be adjusted, and the left and right positions of the transmitting component pass through the adjusting component. 51 is adjusted, the adjustment of the left and right and up and down positions of the transmitting component by the adjusting member 51, the adjustment is convenient, the positioning is accurate, thereby ensuring the mounting accuracy of the transmitting component; and the transmitting component 41 can also be fixed by the adjusting member 51 to ensure the mounting of the transmitting component It is stable and reliable. Since the transmitting component can be adjusted in all directions to ensure the accuracy of the mounting position, the dimensional accuracy of the placement cavity 26 is low, and the cost is greatly saved.

The cushioning member 7 of the present invention is preferably made of a soft material and has a certain elasticity, such as a sponge having elasticity.

In this embodiment, as shown in FIG. 1, the range finder of the present invention further includes a receiving unit, and the main board assembly 31 is provided with a mounting cavity 33 for mounting the upper end of the receiving board 61 of the receiving unit. The upper end of the receiving plate 61 is embedded in the mounting cavity 33 and connected to the main board assembly 31. The receiving board 61 needs to be soldered to the main board 311 of the main board assembly 31, and the upper end of the receiving board 61 is embedded in the mounting cavity 33 on the main board 311, and then soldered, and soldered from the open end of the upper portion of the mounting cavity 33. The main board 311 and the receiving board 61 are fastened together, so that the soldering is simple, and the main board 311 and the receiving board 61 are placed in a staggered manner to ensure that the main board 311 and the receiving board 61 are firmly connected. The problem of difficulty in soldering is solved, and the soldering is stable in the interleaving manner, thereby ensuring the positional stability of the receiving board 61 and the stability of electrical connection with the main board 31.

In this embodiment, as shown in FIG. 8, the front end of the main board assembly 31 is connected to the main structure 2, and in order to ensure the accuracy of the installation of the main board assembly 31, the main structure 2 is also on the main structure. A positioning mechanism for positioning the front end of the main board assembly 31 is provided at a position where the front end portion of the board assembly 31 is in contact. In the embodiment, the positioning mechanism is a boss 28 provided on the main body structure 2. The boss 28 disposed on the main body structure 2 is used for positioning the main board on one hand, the main board is connected to the upper part of the main structure 2, and the front end is positioned by the boss 28 to ensure the accuracy of the mounting position of the main board; The boss 281 above the channel has a height equal to or slightly higher than the thickness of the main board 311, and can separate the emitted light emitted from the emitted light and the stray light entering from the outer side of the transmitting channel, and the light is blocked and protruded A 281 absorption makes the light entering the interior weaker or even completely blocked, no reflected light and stray light enter the receiving unit, and is not received by the receiving unit, so that the measurement of the target is not affected, and the measurement is ensured. The accuracy of the value obtained greatly improves the measurement accuracy of the range finder; similarly, the boss 2 282 is disposed above the vertical receiving channel, and the height is equal to or slightly higher than the thickness of the main board 311, and can be separated. The stray light entering the receiving channel from the outside is blocked, and the light is blocked and absorbed by the boss 282, so that the light entering the inside becomes weaker or even completely blocked, and no stray light enters. To the receiving unit, the receiving unit will not be received, so as not to affect the measurement of the target, to ensure the accuracy of the measured values, greatly improving the measurement accuracy of the rangefinder.

It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not limited thereto; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that The technical solutions described in the foregoing embodiments are modified, or some of the technical features are equivalently replaced; and the modifications or substitutions do not deviate from the scope of the technical solutions of the embodiments of the present invention.

In summary, the above description is only the preferred embodiment of the present invention, and all changes and modifications made by the scope of the present invention should be covered by the present invention.

Claims

A handheld range finder comprising a main body structure, a lens holder and a main board mechanism, wherein: the main body structure and the lens holder are separated structures; the main board mechanism comprises a main board assembly and a main board supporting the main board assembly A support frame, one end of the main board support frame is connected to the main body structure.
The hand-held range finder according to claim 1, wherein the lens holder comprises a lens holder body and a connecting member disposed on an inner side of the lens holder body, and is provided and connected corresponding to a front end of the main body structure. The fitting hole of the piece is matched, and when the lens holder is connected with the main body structure, the connecting piece of the lens holder is embedded in the mounting hole of the main body structure for positioning.
The handheld range finder of claim 2, wherein the lens holder body is provided with a mounting window for lens mounting, and at least one connecting hole is respectively provided at two ends of the lens holder body. The front end of the main body structure is provided with a connecting hole 2 for cooperating with the connecting hole. The main body structure and the lens holder body are connected through the connecting hole and the connecting hole 2 through the fastener.
The handheld range finder according to any one of claims 1 to 3, wherein the main board support frame comprises a connecting portion connected to the main body structure and a supporting portion supporting the main board assembly, wherein the supporting portion is connected The main body structure is provided with a connecting hole 3, and the connecting portion is provided with a connecting hole 4 which is matched with the connecting hole in three phases, and the main body structure and the main board supporting frame penetrate the connecting hole through the fastener The three and the connection holes are connected in four.
The handheld range finder according to claim 4, wherein the supporting portion is provided with a connecting hole 5 connected to the main board assembly, and the main board assembly is provided with a connecting hole matched with the connecting hole 5. Sixth, the main board assembly and the main board support frame are connected by a fastener penetrating into the connecting hole 5 and the connecting hole 6.
The handheld range finder according to claim 1, wherein the two sides of the main body structure are symmetrically provided with a connecting hole 7 connected to the casing.
A hand-held range finder according to any one of claims 1 to 6, characterized in that it is further included The transmitting mechanism includes a transmitting component and a transmitting channel for emitting the transmitting component, the main body structure is provided with a placing cavity for placing the transmitting component; one of the upper end and the lower end of the transmitting component, and the left end One of the right ends and the right end are adjusted in relative position in the setting chamber by means of an adjusting device, and the opposite end is provided with a buffer structure.
The handheld range finder according to claim 7, wherein the adjusting device comprises an adjusting member and an adjusting through hole provided on the main body structure for the adjusting member to pass through; the buffer structure is soft A cushion made of a material.
The handheld range finder according to claim 8, further comprising a receiving unit, wherein the main board assembly is provided with a mounting cavity for mounting the upper end of the receiving unit, and the upper end of the receiving unit is embedded in the The mounting cavity is connected to the motherboard component.
The handheld range finder according to claim 9, wherein the main body structure is further provided with a positioning mechanism for positioning the front end of the main board assembly, and the positioning mechanism comprises a main body structure. The boss.