CN213813976U - Take wall body detection instrument of marking function - Google Patents

Abstract

The utility model discloses a take wall body detection instrument of marking function, include the casing and install the wall body detection circuit in the casing, its characterized in that: the laser line projector is characterized by further comprising a fixing base arranged on the inner side of the shell and a laser line projector arranged on the fixing base, wherein the side wall of the shell is provided with at least one line marking channel for the laser line projector to emit laser. This wall body detection instrument not only is equipped with wall body detection circuit, surveys objects such as metal, electric wire in the wall body, but also is provided with the laser and throws the line ware, carries out the marking location, does not need all the other constructors' assistance or frequent change measuring equipment, and the practicality is strong, and work efficiency is high.

Description

Take wall body detection instrument of marking function

Technical Field

The utility model relates to a measuring instrument field, concretely relates to take wall body detection instrument of marking function.

Background

With the development of decoration industry, people are pursuing decoration quality and decoration efficiency more and more. In order to improve the decoration quality and shorten the construction period, people have higher requirements on the aspects of construction standards, decoration materials and the like. However, decoration detection instruments and equipment used in decoration and construction processes are often ignored, and the precision and the practicability of the decoration detection equipment greatly influence the quality of decoration.

Because the construction environment is comparatively abominable, and reliability and protection nature requirement to all kinds of detecting instrument are higher, consequently some detecting instrument that use of construction now, the function is comparatively single, and every detecting instrument all can be used for detecting specific object, has leaded to constructor like this to need frequently to change detecting instrument when detecting or measuring different objects and parameter, and is very loaded down with trivial details and inconvenient, measures and detects through a plurality of check out test set superposes in addition, easily causes the data deviation. For example, the constructor drills holes at the designated position of a wall or the ground, so that the marking is needed to be positioned, but the drilling area needs to be detected by foreign matters such as metal and electric wires before drilling to avoid damage, so that the working efficiency is low, or the constructor needs the assistance of a plurality of constructors, and the labor cost is high. Therefore, it is crucial to design a multifunctional detection instrument.

The prior art discloses a wall body detector (chinese patent No. CN201020582725.3), in which an upper housing and a lower housing are clamped to each other to form a cavity with an opening at one end, the cavity is a closed space, an instrument body is installed in the cavity, a plug is detachably installed in the cavity and partially exposes out of the opening, and a rear cover body covers the plug. Above-mentioned utility model effectively improves space utilization and has certain dustproof effect from structural, guarantees the measurement accuracy of wall body detection instrument, but this utility model still only has the function that the wall body was surveyed in the function, does not have all the other additional functions, and the function is comparatively single, and constructor still need combine multiple check out test set to measure at the during operation, also can lead to the data deviation that multiple check out test set's stack leads to equally, and work efficiency is lower.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to not enough among the prior art, provide a take wall body detection instrument of marking function, this wall body detection instrument not only is equipped with wall body detection circuit, surveys objects such as metal in the wall body, electric wire, but also is provided with laser and throws the line ware, carries out the marking location, does not need the assistance of all the other constructors or frequently changes measuring equipment, and the practicality is strong, and work efficiency is high.

In order to solve the technical problem, the utility model discloses a following technical scheme can solve:

the utility model provides a take wall body detection instrument of marking function, includes the casing and installs the wall body detection circuit in the casing, still including set up in the inboard fixed baseplate of casing and install in line ware is thrown to last laser of fixed baseplate, the casing lateral wall is equipped with at least one confession the marking passageway of laser line ware jet out laser.

Preferably, the housing comprises an upper housing and a lower housing, the fixed base is mounted at the front or the rear of the lower housing, and the upper housing is provided with a marking channel at a position corresponding to the end of the fixed base.

Preferably, the laser line throwing device is a cross line laser head, and a cross line marking channel is correspondingly arranged on the upper shell.

Preferably, the laser line projector is a line laser head.

Preferably, the device also comprises a laser ranging device, and the shell is provided with a transmitting channel and a receiving channel which pass through a light source of the laser ranging device.

Preferably, the transmitting channel, the receiving channel and the marking channel are all arranged on the same end face of the upper shell.

Preferably, a functional assembly and a control circuit board are arranged in the shell, the functional assembly comprises a display screen and a key part which are arranged at the lower end of the upper shell, and the control circuit board is connected to the lower end of the functional assembly.

Preferably, be equipped with in the casing with shell connection's bracket component down, the bracket component includes mounting base and support piece, wherein mounting base's upper end is connected with the display screen, mounting base's lower extreme and wall body detection circuit are connected.

Preferably, the wall detection circuit comprises a metal detection component for generating an alternating magnetic field and receiving induced magnetic field information generated by the metal in the wall under the influence of the alternating magnetic field.

Preferably, the metal detection assembly comprises an alternating current signal generating unit for generating an alternating current signal, a magnetic field transmitting unit for generating an alternating magnetic field, a magnetic field receiving unit for receiving an induced magnetic field, and a signal amplifying circuit.

The utility model discloses the main beneficial effect who gains as follows: the utility model discloses a take wall body detection instrument of marking function, include the casing and install the wall body detection circuit in the casing. Therefore the utility model discloses can survey foreign matter such as metal, nonmetal, timber that can't see to the naked eye in the wall body, make clear of the internal foreign matter position of wall, operate again, avoid damaging part structures such as circuit in the wall body, panel, reinforcing bar, play the internal part of protection these walls on the one hand, on the other hand avoids carrying out useless operation and the damage that these operations led to the fact the wall body on the wall body, influences the pleasing to the eye degree of wall body when increasing work load. If constructors need to drill holes on the wall body, the wall body needs to be detected, whether foreign matters such as circuits exist in the wall body or not is known, and therefore reasonable planning is made by combining the foreign matters in the wall body before operation, the component structures are avoided, and the holes are not drilled on the wall body blindly. If the detection is not carried out, the component structures are easily damaged in the operation process, so that the operation and repair are needed again, the working efficiency is reduced, and the wall body is easily damaged in the operation process of the drilling holes, so that the attractiveness is influenced. Furthermore, the utility model discloses on this function of surveying, still increased the laser marker, the casing lateral wall is equipped with at least one and supplies the laser marker to jet out the laser marking passageway, and the laser marker passes through the transmission laser to carry out the mark location on projecting wall body, bottom surface isoplanar. The existing wall detecting instruments have high requirements on the reliability and the protection performance of various detecting instruments due to the severe construction environment, so that the functions are single, and each detecting instrument can only be used for detecting a specific object. Although this kind of detector of single function has better protectiveness, but has leaded to constructor to need frequently to change detecting instrument when detecting or measuring different objects and parameter like this, very loaded down with trivial details and carry inconveniently, work efficiency is also not high, if want to improve work efficiency and need multiple constructor's assistance, has improved the expense of cost of labor, and through a plurality of check out test set stack measurement and detection, easily cause the data deviation, measured data is not accurate. Consequently compare in the current detector on the above-mentioned market, the utility model discloses a wall body detection instrument can also carry out the mark when surveying the wall body for collecting to survey and mark multi-functional wall body detection instrument as an organic whole. Need drill on the assigned position of wall body if constructor, consequently need have the instrument of marking function to fix a position the wall, but need carry out the detection of foreign matters such as metal, electric wire to this drilling region before drilling again, still need the wall body detector to survey the wall body for this reason, make a round trip to switch over and use multiple detecting instrument, operating procedure is loaded down with trivial details, nevertheless uses the utility model discloses the wall body detector that has the marking function detects the wall body when just can going on the mark location on the wall body, perhaps constructor only need examine time measuring to the wall body of certain extent, and the straightness accuracy is rectified to the laser of accessible laser marking ware, and whether real-time supervision has surpassed this certain extent, effectively improves constructor's work efficiency to and reduce measuring error. In addition, the laser line marker is arranged on the fixed base, and the mounting base is fixed on the inner side of the shell, so that the laser line marker is also arranged on the inner side of the shell, has certain protection and reliability, and is not easy to cause the failure of functional components due to external impact or dust pollution.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:

fig. 1 is an exploded structural schematic diagram of an upper shell and a lower shell of a wall body detector according to an embodiment of the disclosure.

Fig. 2 is an exploded structural schematic diagram of another upper shell and a lower shell of the wall body detector disclosed in the embodiment.

Fig. 3 is a schematic view of an overall exploded structure of the wall body detector according to the embodiment.

Detailed Description

In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined below to clearly and completely describe the technical solution of the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments, which can be obtained by a person skilled in the art without any inventive work based on the described embodiments of the present invention, belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the description and in the claims does not indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one.

As shown in fig. 1, as the embodiment of the utility model discloses a take wall body detection instrument of marking function, including casing 1 with install the wall body detection circuit 2 in casing 1, still including setting up in the inboard fixed baseplate 31 of casing 1 and installing the laser line projector 3 on fixed baseplate 31, casing 1 lateral wall is equipped with at least one and supplies laser line projector 3 to jet out laser marking passageway 32. The utility model discloses fields such as mainly used fitment, decoration, reinforcing bar timber electric wire in the location wall body etc. reach the purpose of safe drilling nailing, also can be used for the topography survey, and the bridge erects, trajectory analysis, architectural survey, indoor decoration arranges the occasion that etc. need measuring distance, length, area. In this embodiment, the wall detection circuit 2 can detect the metal, nonmetal, wood and other foreign matters which can not be seen by naked eyes in the wall, so as to determine the position of the foreign matters in the wall, and then operate the foreign matters to avoid damaging the structures of the circuit, the plate, the steel bars and other parts in the wall. If constructors need to drill holes on the wall body, the wall body needs to be detected, whether foreign matters such as circuits exist in the wall body or not is known, and therefore reasonable planning is made by combining the foreign matters in the wall body before operation, the component structures are avoided, and the holes are not drilled on the wall body blindly. If the detection is not carried out, the component structures are easily damaged in the operation process, so that the operation and repair are needed again, the working efficiency is reduced, and the wall body is easily damaged in the operation process of the drilling holes, so that the attractiveness is influenced. Furthermore, the utility model discloses in the function of this detection, still increased laser marker 3, 1 lateral wall of casing is equipped with at least one and supplies laser marker 3 to jet out the laser marking passageway 32, and laser marker 3 is through transmitting laser to carry out the mark location on projecting wall body, bottom surface isoplanar. The existing wall detecting instruments have high requirements on the reliability and the protection performance of various detecting instruments due to the severe construction environment, so that the functions are single, and each detecting instrument can only be used for detecting a specific object. Although this kind of detector of single function has better protectiveness, but has leaded to constructor to need frequently to change detecting instrument when detecting or measuring different objects and parameter like this, very loaded down with trivial details and carry inconveniently, work efficiency is also not high, if want to improve work efficiency and need multiple constructor's assistance, has improved the expense of cost of labor, and through a plurality of check out test set stack measurement and detection, easily cause the data deviation, measured data is not accurate. Consequently compare in the current detector on the above-mentioned market, the utility model discloses a wall body detection instrument can also carry out the mark when surveying the wall body for collecting to survey and mark multi-functional wall body detection instrument as an organic whole. Need drill on the assigned position of wall body if constructor, consequently need have the instrument of marking function to fix a position the wall, but need carry out the detection of foreign matters such as metal, electric wire to this drilling region before drilling again, still need the wall body detector to survey the wall body for this reason, make a round trip to switch over and use multiple detecting instrument, operating procedure is loaded down with trivial details, nevertheless uses the utility model discloses the wall body detector that has the marking function detects the wall body when just can carrying out the mark marking off on the wall body, perhaps constructor only need examine time measuring to the wall body of certain extent, and the straightness is rectified to the laser that accessible laser marking ware 3 sent, and whether real-time supervision has surpassed this certain extent, effectively improves constructor's work efficiency to and reduce measuring error. In addition, since the laser marker 3 is attached to the fixing base 31 and the attachment base 31 is fixed to the inside of the housing 1, the laser marker 3 is also provided inside the housing 1, and thus has a certain protection property and reliability, and is not likely to cause malfunction of functional parts due to external impact or contamination by dust. Of course, in other embodiments, a plurality of laser stripers 3 may be provided, and a plurality of striping channels 32 may be provided on the side wall of the housing 1, so as to perform marking and positioning with more precision, and with more directions and angles. Alternatively, in other embodiments, the reticle function and the probe function may be used separately.

Specifically, in some embodiments, the housing 1 includes an upper housing 11 and a lower housing 12, a fixing base 31 is mounted on the front or rear portion of the lower housing 12, and the upper housing 11 is provided with a marking passage 32 at a position corresponding to the end of the fixing base 31. Further, in the present embodiment, the fixing base 31 is fixedly connected to the front portion of the lower housing 12 and adjacent to the inner side of the front end surface of the lower housing 12, so as to facilitate the action of the laser line projector 3 on the outside, and the marking channel 32 is also provided at the front portion of the upper housing 1 matching with the end portion of the fixing base 31, so that the laser line projector 3 directly emits the laser light to the outside through the marking channel 32, and the structure is simple and the arrangement is compact. Of course, in other embodiments, the fixing base 31 is installed at the rear portion of the lower housing 12, or at both side portions of the lower housing 12, and a plurality of laser projectors 3 may be disposed in the housing 1, and a plurality of fixing bases 31 and reticle channels 32 are disposed at corresponding positions of the housing 1, so that the reticle positioning function can be achieved with more precision and more directions and angles.

In some embodiments, as shown in fig. 2, the laser projector 3 is a cross-shaped laser head, and the upper housing 11 is correspondingly provided with a cross-shaped reticle passage 113. Further, in this embodiment, the laser emitted from the laser line projector 3 is two mutually perpendicular laser lines, which are projected onto an object to generate a horizontal marking line, one of which is used for marking a horizontal direction, and the other perpendicular to the horizontal direction is the same as the vertical direction, so that a constructor can correct the horizontal and vertical straightness during operations of cutting plates, wall marks and the like with straightness requirements. In addition, the front part of the upper shell 11 opposite to the laser line projector 3 is provided with a cross-shaped marking channel 113, the shape of the cross-shaped marking channel 113 is a cross structure matched with the laser emitted by the cross-shaped laser head, the laser of the cross-shaped laser head can penetrate through the cross-shaped marking channel 113, the interference laser of non-cross lines can be blocked, and the precision of laser line projection is improved. In some other embodiments, for the operation that the marking requirement is not high, the laser line projector 3 can also be a line laser head, namely only one horizontal or vertical laser can be emitted, and the above function is also provided.

Further, in some other embodiments, the utility model discloses still include laser rangefinder 4, consequently the utility model discloses except having the function of detecting the internal object of wall, having the function with the laser marking, still have the function of laser survey distance simultaneously. The laser ranging device 4 takes a laser as a light source to carry out ranging, a transmitting channel 41 and a receiving channel 42 which pass through the light source of the laser ranging device 4 are arranged on the shell 1, the light source transmits the light source to the outside through the transmitting channel 41, the transmitted light source is received by the receiving channel 42 after being reflected by a measured object, and the round-trip time of the laser is recorded at the same time, so that the distance from one end to the other end of the object or the size of the object is measured. Therefore, in the work progress of reality, the constructor accessible the utility model discloses a exclusive use or the combination application of range finding function, object detection function, marking function improves work efficiency, has reduced the trouble of carrying multiple measuring tool to the constructor to and effectively solved constructor need not stop when detecting all kinds of different parameters in the fitment work progress and change the problem of each measuring tool, the practicality is strong.

In some embodiments, the transmit channel 41, the receive channel 42, and the reticle channel 32 are all disposed on the same end face of the upper housing 11. Specifically, in the present embodiment, the laser distance measuring device 4 and the laser line projector 3 are both disposed at the front portion of the upper housing 11, and therefore the transmitting passage 41, the receiving passage 42, and the reticle passage 32 that match the laser distance measuring device 4 and the laser line projector 3 are also juxtaposed on the front end face of the upper housing 11. Through such arrangement, the functional areas are concentrated, but not the functional structures are dispersed, the arrangement structure of the shell body 1 is more compact, and the space utilization rate is higher. Most importantly, the transmitting channel 41, the receiving channel 42 and the marking channel 32 are arranged on the same end face, so that the use of constructors is facilitated, in the process of measuring the distance between a target object and a marking, the laser ranging device 4 and the laser line-casting device 3 can be started simultaneously, the transmitting channel 41, the receiving channel 42 and the marking channel 32 face the target object and send out lasers with different functions outwards and feed back the lasers, one-step operation is completed, if the transmitting channel 41, the receiving channel 42 and the marking channel 32 are arranged at different positions of the shell 1, the simultaneous measurement and marking cannot be performed, and the use is inconvenient.

In other embodiments, as shown in fig. 3, the housing 1 is provided with a functional module 5 and a control circuit board 6, wherein the functional module 5 comprises a display screen 51 and a key portion 52 disposed at the lower end of the upper housing 11, and the control circuit board 6 is connected to the lower end of the functional module 5. Furthermore, in the present embodiment, the lower end of the upper housing 11 is a display screen 51, the upper portion of the display screen 51 is provided with an external screen 511 for protecting the display screen 51, and the external screen 511 is embedded in the upper housing 11, so that a user can see data feedback of the display screen 51 through the external screen 511. The key parts 52 are disposed at two ends of the external screen 511 and are also embedded in the upper end surface of the upper housing 11, which is convenient for the user to operate the keys. In addition, the control circuit board 6 is disposed at the lower end of the functional component 5 and is connected to the functional component 5 through a circuit, the control circuit board 6 is provided with a plurality of electronic components 61 matched with the key portion 52, and a user can trigger the electronic components 61 to be turned on or off when pressing the key portion 52. Therefore, through the structural arrangement, the upper end face of the upper shell 1 is convenient for a user to operate, the lower end of the upper shell 1 is compact in structural arrangement, redundant complex structures are not arranged, the space utilization rate in the shell 1 is high, and the shell is small and portable.

In other embodiments, the housing 1 is provided with a bracket assembly 7 connected to the lower housing 12, and the bracket assembly 7 includes a mounting base 71 and a support member 72, wherein the upper end of the mounting base 71 is connected to the display screen 51, and the lower end of the mounting base 71 is connected to the wall detection circuit 2. Furthermore, in this embodiment, the bracket assembly 7 is disposed between the functional assembly 5 and the control circuit board 6, the bracket assembly 7 is used to support the upper functional assembly 5, and the lower portion is used to mount the control circuit board 6 and the wall detection circuit, wherein the key portion 52 is connected to the upper end faces of both sides of the bracket assembly 7, the middle position of the bracket assembly 7 is provided with a mounting passage 73, the display screen 51 is embedded in the mounting passage 73, and the circuit of the control circuit board 6 can be directly connected to the display screen 51 through the mounting passage 73 without winding wires, thereby simplifying the internal structure. In addition, a plurality of supporting members 71 are disposed on two side end surfaces of the bracket assembly 7, the lower housing 12 is provided with a connecting seat 122 matched with the supporting members 71, and the supporting members 71 are connected with the connecting seat 122. Meanwhile, the bracket assembly 7 is provided with a mounting base 71 for fixing the control circuit board 6 and having a certain supporting function, so as to prevent the control circuit board 6 from loosening and have a stabilizing function.

In other embodiments, the wall detection circuit includes a metal detection component for generating an alternating magnetic field and receiving information of an induced magnetic field generated by the metal in the wall under the influence of the alternating magnetic field. Specifically, the metal detection assembly comprises an alternating current signal generating unit for generating an alternating current signal, a magnetic field transmitting unit for generating an alternating magnetic field, a magnetic field receiving unit for receiving an induced magnetic field, and a signal amplifying device. Wherein, the magnetic field emission unit may be a conductive coil. The processor controls the alternating current signal generating unit to generate an alternating current signal, the magnetic field transmitting unit is driven to generate an alternating magnetic field, metal in the wall is influenced by the alternating magnetic field to generate an induced magnetic field, the magnetic field receiving unit receives the induced magnetic field, amplifies the received induced magnetic field signal through the signal amplifying device and then transmits the amplified induced magnetic field signal to the processor. The processor analyzes the amplitude of the induced magnetic field intensity signal output by the signal amplifying device, converts the amplitude information of the signal into distance information from the central point of the metal circular section to the central point of the lower surface of the detector, and can display the distance information on the display module.

In some embodiments, the metal detection assembly includes an ac signal generating unit for generating an ac signal, a magnetic field transmitting unit for generating an alternating magnetic field, a magnetic field receiving unit for receiving an induced magnetic field, and a signal amplifying circuit. Wherein, the magnetic field emission unit may be a conductive coil. The processor controls the alternating current signal generating unit to generate an alternating current signal, the magnetic field transmitting unit is driven to generate an alternating magnetic field, metal in the wall is influenced by the alternating magnetic field to generate an induced magnetic field, the magnetic field receiving unit receives the induced magnetic field, amplifies the received induced magnetic field signal through the signal amplifying device and then transmits the amplified induced magnetic field signal to the processor. The processor analyzes the amplitude of the induced magnetic field intensity signal output by the signal amplifying device, converts the amplitude information of the signal into distance information from the central point of the metal circular section to the central point of the lower surface of the detector, and can display the distance information on the display module.

In other embodiments, the wall detection circuit may further include a wood beam detection module, the wood beam detection module includes a capacitance sensor and a detection unit for detecting a capacitance change, the capacitance sensor is composed of a copper sheet, a wall and a medium located between the copper sheet and the wall, the copper sheet is disposed on a circuit board of the detection unit for detecting a capacitance change, the number of the copper sheets is generally 1 to 3, in this embodiment, the number of the copper sheets is 2, each copper sheet and the wall form a capacitance, when 2 capacitances are set, when the wood beam or the foreign object is located under a certain copper sheet, a capacitance value of the capacitance formed by the copper sheet is changed, and the detection unit for detecting a capacitance change detects that the capacitance of the copper sheet is changed, so that the wood beam or the foreign object is located under the copper sheet.

In some other embodiments, the wall detection circuit may further include an ac detection module, the ac detection module is configured to detect whether there is a conductive wire in the wall medium, the ac detection module includes a copper sheet configured to receive electromagnetic radiation generated by ac power, and an operational amplifier circuit, the copper sheet is disposed on the circuit board, and the copper sheet may also be a conductive wire. When the operational amplifier works, a reference voltage is applied to the positive phase input end of the operational amplifier, the copper sheet or the conducting wire on the circuit board induces the electromagnetic radiation of the alternating current in the wall medium (the electromagnetic radiation generated by the electrified conducting wire) to generate tiny voltage change, the signal is amplified through the operational amplifier circuit, and the condition of the external alternating current can be judged according to the amplitude of the signal output by the amplifier circuit. When the signal amplitude is large, the alternating current of the wall medium is strong, otherwise, the alternating current of the wall medium is weak.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

In short, the above description is only a preferred embodiment of the present invention, and all the equivalent changes and modifications made in accordance with the claims of the present invention should be covered by the scope of the present invention.

Claims (10)

1. The utility model provides a take wall body detection instrument of marking function, includes the casing and installs the wall body detection circuit in the casing, its characterized in that: the laser line projector is characterized by further comprising a fixing base arranged on the inner side of the shell and a laser line projector arranged on the fixing base, wherein the side wall of the shell is provided with at least one line marking channel for the laser line projector to emit laser.

2. The wall detector with the marking function according to claim 1, wherein: the casing includes last casing and lower casing, fixed baseplate install in lower casing front portion or rear portion, go up the casing and be equipped with the marking passageway in fixed baseplate tip corresponding position department.

3. The wall detector with the marking function according to claim 2, wherein: the laser line throwing device is a cross line laser head, and a cross line marking channel is correspondingly arranged on the upper shell.

4. The wall detector with the marking function according to claim 2, wherein: the laser line-throwing device is a line laser head.

5. The wall detector with a marking function according to claim 3, wherein: still include laser rangefinder, be equipped with on the casing through the transmission passageway and the receiving channel of laser rangefinder light source.

6. The wall detector with a marking function according to claim 5, wherein: the transmitting channel, the receiving channel and the marking channel are all arranged on the same end face of the upper shell.

7. The wall detector with the marking function according to claim 6, wherein: the shell is internally provided with a functional assembly and a control circuit board, the functional assembly comprises a display screen and a key part which are arranged at the lower end of the upper shell, and the control circuit board is connected to the lower end of the functional assembly.

8. The wall detector with a marking function according to claim 7, wherein: the utility model discloses a wall body detection device, including casing, support component, display screen, be equipped with in the casing with casing connection's support component down, the support component includes mounting base and support piece, wherein mounting base's upper end is connected with the display screen, mounting base's lower extreme and wall body detection circuit are connected.

9. The wall detector with a marking function according to any one of claims 1 to 8, wherein: the wall detection circuit comprises a metal detection assembly which is used for generating an alternating magnetic field and receiving induced magnetic field information generated by the influence of the alternating magnetic field on metal in the wall.

10. The wall detector with a marking function according to claim 9, wherein: the metal detection assembly comprises an alternating current signal generating unit for generating an alternating current signal, a magnetic field transmitting unit for generating an alternating magnetic field, a magnetic field receiving unit for receiving an induced magnetic field and a signal amplifying circuit.

Images