Hunting instrument

Abstract

The utility model discloses a line hunting instrument, which comprises an emitter, the emitter comprises an emitter shell and a line hunting signal emitter arranged in the emitter shell, the line hunting instrument also comprises a detection circuit arranged in the emitter shell and used for detecting current and / or voltage and / or resistance, and the emitter shell is provided with a circuit test interface. The circuit test interface is electrically connected with the detection circuit. According to the line hunting instrument of the utility model, the detection circuit used for detecting the current and / or the voltage and / or the resistance is additionally arranged in the line hunting instrument, so that the line hunting instrument can detect the circuit and can detect the current and / or the voltage and / or the resistance in the circuit, and therefore, the line hunting instrument has the function of a universal meter, and multi-functionalization of the line hunting instrument can be realized; and the number of instruments carried when people go out is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to line tracer technical field. BACKGROUND

[0002] Line tracer is a tool used to identify and trace hidden cables, it locates the cable by emitting specific signals and detecting their responses. The device is usually composed of two parts: transmitter and receiver. The transmitter is connected to the cable, sending signals; the receiver is used to detect these signals, helping users determine the path and location of the cable. Line tracer is widely used in telecommunications, network wiring, construction and other fields, which can improve the efficiency of line detection and maintenance. It not only can detect the physical location of the cable, but also can identify the open circuit, short circuit and other faults of the line, which is an indispensable tool for line maintenance.

[0003] In the prior art, line tracer generally only has line searching function, and the function is relatively single. When the user uses it, especially when he goes out, he needs to carry multiple instruments, and often needs to replace the instrument during use, which is more cumbersome to operate and affects the work efficiency. UTILITY MODEL CONTENT

[0004] In order to overcome at least one of the defects of the prior art described above, the utility model provides a line tracer, which is provided with a detection circuit for detecting current and / or voltage and / or resistance in the line tracer, so that the line tracer can detect the circuit, detect the current and / or voltage and / or resistance in the circuit, have the function of the multimeter, realize the multifunctionalization of the line tracer, and reduce the number of instruments carried when going out.

[0005] The utility model adopts the technical scheme of solving the problem:

[0006] A line tracer, comprising a transmitter, the transmitter comprising a transmitter shell and a line signal transmitter installed in the transmitter shell, further comprising a detection circuit installed in the transmitter shell and used for detecting current and / or voltage and / or resistance, a circuit test interface is arranged on the transmitter shell, and the circuit test interface is in electrical conduction with the detection circuit.

[0007] Further, the detection circuit comprises a direct current voltage measurement circuit, an alternating current voltage measurement circuit, a direct current measurement circuit and a resistance measurement circuit.

[0008] Further, the circuit test interface comprises a current test interface, a voltage test interface and a test male interface.

[0009] The current test interface is in electrical conduction with at least the direct current measurement circuit.

[0010] The voltage test interface is electrically connected with the direct current voltage measurement circuit and the alternating current voltage measurement circuit;

[0011] The test male interface is electrically connected with the direct current voltage measurement circuit, the alternating current voltage measurement circuit, the direct current current measurement circuit and the resistance measurement circuit.

[0012] Further, the display screen is arranged close to the top of the transmitter shell along the length direction of the transmitter shell, and the key area is arranged close to the tail of the shell.

[0013] Further, the key area is provided with at least a switch key, a line searching key, a multimeter key, a function switching key and a test starting key.

[0014] Further, the transmitter shell is further provided with a first interface for line searching and line matching and a second interface for port flashing, POE testing and length testing, and the first interface and the second interface are arranged at the top end of the transmitter shell.

[0015] Further, the transmitter shell is further provided with a transmitter baffle, the transmitter baffle is arranged at the top of the transmitter shell, and the first interface and the second interface penetrate the transmitter baffle.

[0016] Further, the line searching instrument further comprises a receiver, the receiver comprises a receiver shell and a signal processor installed in the receiver shell, the signal processor, the receiver shell is provided with a signal probe and an RJ45 interface, the signal probe and the RJ45 interface are in signal communication with the signal processor, the signal probe is arranged at the top end of the receiver shell, and the RJ45 interface is arranged at the bottom end of the receiver shell.

[0017] Further, the receiver shell is further provided with an illuminating lamp and a line searching signal indicating lamp, the illuminating lamp is arranged at the top of the receiver shell, and the line searching signal indicating lamp is arranged on the upper surface of the receiver shell.

[0018] Further, the receiver shell comprises a first part and a second part, the first part and the second part are integrally connected, and the signal probe is arranged at the end of the first part away from the second part.

[0019] The first part is further provided with a sensitivity adjusting knob, and the sensitivity adjusting knob is arranged on the upper surface of the first part.

[0020] In summary, the line searching instrument has the following technical effects:

[0021] The line finder in the technical solution adds a multimeter function for detecting current, voltage and resistance on the basis of the original conventional line searching and line matching functions of the line finder, realizes multifunctionalization of the line finder, reduces the number of instruments carried when going out, also reduces the number of instrument replacement when working, and improves work efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a structure schematic view of an embodiment of the transmitter of the line finder.

[0023] Figure 2 It is an exploded view. Figure 1

[0024] Figure 3 It is a structure schematic view of an embodiment of the receiver of the line finder.

[0025] Figure 4 It is an exploded view. Figure 3

[0026] Among them, the meaning of the reference signs is as follows:

[0027] 1, transmitter housing; 2, circuit test interface; 21, current test interface; 22, voltage test interface; 23, test male interface; 3, first interface; 4, second interface; 5, display screen; 6, key area; 7, receiver housing; 71, first part; 72, second part; 73, signal probe; 74, sensitivity adjusting knob; 75, line searching signal indicator; 76, illuminating lamp;

[0028] 11, transmitter face shell; 12, transmitter bottom shell; 13, transmitter battery cover; 14, transmitter battery; 15, first pcb board; 16, transmitter baffle; 17, second pcb board; 18, transmitter lens; 19, transmitter plastic sleeve;

[0029] 81, receiver face shell; 82, receiver bottom shell; 83, receiver battery; 84, receiver battery cover; 85, first receiver pcb board; 86, second receiver pcb board. DETAILED DESCRIPTION

[0030] In order to better understand and implement, the technical solutions in the embodiments of the utility model will be clearly and completely described below by combining the drawings in the embodiments of the utility model.

[0031] ​​In the description of the utility model, it is necessary to explain that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the utility model belongs. The terminology used in the specification of the utility model herein is only for the purpose of describing specific embodiments and is not intended to limit the utility model.

[0033] Referring to Figure 1 And Figure 3 The utility model discloses a line finder.

[0034] A line finder, comprising a transmitter, the transmitter comprising a transmitter housing 1 and the line signal transmitter installed in the transmitter housing 1, further comprising a detection circuit installed in the transmitter housing 1 and used for detecting current and / or voltage and / or resistance, the transmitter housing 1 is provided with a circuit test interface 2, and the circuit test interface 2 is in electrical conduction with the detection circuit.

[0035] Based on the above scheme, the detection circuit capable of detecting current and / or voltage and / or resistance is additionally arranged on the line finder with conventional line searching and line pairing functions, current and / or voltage and / or resistance are detected, the function of the line finder is increased, when going out, the user can reduce the carrying of the instrument, reduces the problem of instrument carrying omission, in addition, the instrument replacement frequency can be reduced during the use of the instrument, and the working efficiency is improved.

[0036] A line tracer includes a transmitter and a receiver. The transmitter inputs a specific signal (usually audio or radio frequency signal) into the target cable or wire pair. This signal will propagate in the cable and generate an electromagnetic field at the other end of the cable or along the line. Then the receiver of the line tracer is used to detect the electromagnetic field around the cable or the reflected signal. The receiver can be a handheld device moving along the cable to identify and locate the path of the cable. The signal received by the receiver will be processed by the internal circuit, including amplification, filtering and demodulation, to extract useful information. The receiver can identify the specific cable or wire pair according to the processed signal strength, frequency or pattern. In the environment of multiple cables, they can be distinguished by comparing the signal characteristics on different cables. In the present scheme, the line tracing and wire pairing functions of the line tracer are the conventional functions of the conventional line tracer in the prior art, and the working process, working principle and working signal transmission, reception and processing of the single-chip microcomputer are also the single-chip microcomputers in the prior art.

[0037] In the present scheme, only the detection circuit capable of realizing current and / or voltage and / or resistance detection is added in the existing line tracer, and a circuit test interface 2 adapted to the detection circuit is added, without changing the line tracing and wire pairing functions in the original line tracer. In the present scheme, the detection circuit with current and / or voltage and / or resistance detection function is also a conventional circuit used in the multimeter in the prior art. The circuit can be added to the original circuit board inside the line tracer, or the circuit board with the detection circuit for realizing current and / or voltage and / or resistance detection in the prior art can be separately fixed inside the transmitter housing 1.

[0038] In the present technical scheme, the detection circuit includes a direct current voltage measurement circuit, an alternating current voltage measurement circuit, a direct current measurement circuit and a resistance measurement circuit, which respectively realize the detection of direct current voltage, alternating current voltage, current and resistance, so that the line tracer has the function of the multimeter in the prior art, realizes the multifunctionalization of the line tracer, reduces the number of instruments carried out, avoids frequent replacement of measuring instruments during work, improves work efficiency and reduces work load.

[0039] In the present technical scheme, the circuit test interface 2 includes a current test interface 21, a voltage test interface 22 and a test male interface 23.

[0040] The current test interface 21 is at least electrically conductive with the direct current measurement circuit. The voltage test interface 22 is at least electrically conductive with the direct current voltage measurement circuit and the alternating current voltage measurement circuit.

[0041] The test male interface 23 is electrically conductive with the direct current voltage measurement circuit, the alternating current voltage measurement circuit, the direct current measurement circuit and the resistance measurement circuit.

[0042] The current, voltage and resistance can be tested respectively, and the corresponding to-be-tested target is connected with the corresponding test interface during testing, so that the testing is simple and fast.

[0043] In the scheme, the current test interface 21, the voltage test interface 22 and the test male interface 23 are arranged on the surface of the transmitter housing 1, so that wiring or connection is facilitated during testing.

[0044] During testing, the two ends of the to-be-tested current circuit are electrically connected with the current test interface 21 and the test male interface 23 respectively. During voltage testing, the two ends of the to-be-tested voltage circuit are electrically connected with the voltage test interface 22 and the test male interface 23 respectively. During resistance testing, the voltage test mode is switched to the resistance test mode through the transmitter multimeter function button, and then the two ends of the to-be-tested resistance circuit are electrically connected with the voltage test interface 22 and the test male interface 23 respectively, so that the resistance is measured.

[0045] Based on the above scheme, the polarity of the transistor can be detected through the voltage test interface and the test male interface, and the function of the line tracer is further increased.

[0046] In the technical scheme, the detection circuit further comprises a protection circuit and an analog-to-digital converter. The protection circuit protects the diode in the detection circuit, so as to prevent the detection circuit from being damaged by high voltage or current.

[0047] In the technical scheme, the transmitter housing 1 is provided with a display screen 5 and a key area 6. Along the length direction of the transmitter housing 1, the key area 6 is arranged behind the display screen 5, that is, along the length direction of the transmitter housing, the display screen is arranged close to the top of the transmitter housing, and the key area is arranged close to the tail of the housing. The arrangement of the technical scheme facilitates the operator to hold and operate the key area 6 during operation, and does not affect the observation of the display screen 5, which conforms to the use habit of people.

[0048] In the technical scheme, the key area 6 is provided with at least a switch key, a line searching key, a multimeter key, a function switching key and a test starting key, so as to realize the detection operation of line searching, line pairing, current, voltage and resistance.

[0049] In the technical scheme, the transmitter housing 1 is further provided with a first interface 3 for line searching and line pairing and a second interface 4 for port flashing, POE testing and length testing, and the first interface 3 and the second interface 4 are arranged at the top end of the transmitter housing 1.

[0050] The transmitter housing is further provided with a transmitter baffle 16, the transmitter baffle 16 is arranged on the top of the transmitter housing, and the first interface and the second interface both penetrate the transmitter baffle. The transmitter baffle 16 realizes the fixation and protection of the first interface and the second interface, and protects the transmitter housing at the same time.

[0051] In the scheme, the port flashing refers to that after the cable is connected with the transmitter and the network terminal, the port flashing function is used to make the indicator light in the transmitter display and the indicator light on the network terminal interface flash synchronously to indicate the port connected by the cable.

[0052] In the scheme, the POE test refers to that POE (Power Over Ethernet) means that in the case that the existing Ethernet Cat.5 wiring infrastructure is not changed, the technology is used to transmit data signals to some IP-based terminals (such as IP telephone, wireless LAN access point AP, network camera, etc.) and provide DC power supply for the terminals.

[0053] In the scheme, the line finder is additionally provided with the port flashing, the POE test and the length test, so that the line finder has more functions, the instrument and equipment are not frequently replaced in the test process, the operation is simplified, and the efficiency is improved.

[0054] In the scheme, the transmitter housing is fixedly installed by a transmitter face shell and a transmitter bottom shell. The first pcb board, the second pcb board, the transmitter key, the transmitter battery, the transmitter battery cover, the transmitter plastic sleeve, the transmitter lens and the third pcb board are further arranged in the transmitter housing. The first interface and the second interface are fixedly installed with the first pcb board and electrically conductive. The transmitter battery is fixed in the transmitter bottom shell, and the transmitter battery cover is arranged on the transmitter bottom shell, so that the transmitter battery is replaced. The second pcb board is integrated with a direct-current voltage measurement circuit, an alternating-current voltage measurement circuit, a direct-current current measurement circuit and a resistance measurement circuit. The first pcb board is integrated with a line signal transmitter single-chip microcomputer module and a single-chip microcomputer function module for the port flashing, the POE test and the length test. The transmitter key forms the key area. The transmitter lens forms the display screen.

[0055] In the scheme, the line finder further comprises a receiver, the receiver comprises a receiver housing 7 and a signal processor installed in the receiver housing 7. The signal processor is provided with a signal probe 73 and an RJ45 interface on the receiver housing 7. The signal probe 73 and the RJ45 interface are both signal-conductive with the signal processor. The signal probe 73 is arranged at the top end of the receiver housing 7, and the RJ45 interface is arranged at the bottom end of the receiver housing 7.

[0056] The signal probe 73 and the RJ45 interface are used in conjunction with the transmitter to enable the cable finder to perform cable tracing, pairing, port flashing, PoE testing, and length testing functions. The signal probe 73 and the RJ45 interface are located on the top and bottom of the receiver housing 7, respectively, for easy operation.

[0057] In this technical solution, the receiver housing 7 is also equipped with an illumination lamp 76 and a cable tracking signal indicator 75. The illumination lamp 76 is located on the top of the receiver housing 7, and the cable tracking signal indicator 75 is located on the upper surface of the receiver housing 7. The illumination lamp 76 provides illumination, enabling use in dimly lit locations, while the cable tracking signal indicator 75 provides cable tracking indication, allowing the cable position to be determined by the brightness of the cable tracking signal indicator 75.

[0058] In this technical solution, the receiver housing 7 includes a first part 71 and a second part 72, which are integrally connected. The signal probe 73 is disposed at the end of the first part 71 away from the second part 72.

[0059] The first part 71 is also equipped with a sensitivity adjustment knob 74, which is located on the upper surface of the first part 71. This allows the operator to easily hold the second part 72 and then adjust the sensitivity of the first part 71 using the sensitivity adjustment knob 74. The operation is convenient and conforms to people's usage and operating habits.

[0060] In this technical solution, the receiver housing is formed by a receiver front shell 81 and a receiver bottom shell 82 fixedly mounted. Inside the receiver housing are a first receiver PCB board 85, a second receiver PCB board 86, a receiver battery 83, and a receiver battery cover 84. The receiver battery 83 is fixedly mounted on the receiver bottom shell 82, and the receiver battery cover 84 covers the receiver battery. The signal probe 73 is electrically connected to the first receiver PCB board, and the second receiver PCB board is electrically connected to the receiver battery.

[0061] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A line tracer comprising a transmitter, the transmitter comprising a transmitter housing and a line tracer signal transmitter mounted within the transmitter housing, characterized by: The transmitter further comprises a detection circuit and a circuit test interface: The detection circuit is installed in the transmitter housing and comprises a current measurement circuit for detecting current, and / or a voltage measurement circuit for detecting voltage, and / or a resistance measurement circuit for detecting resistance; The circuit test interface is arranged on the transmitter housing and comprises a current test interface electrically connected to the current measurement circuit, and / or a voltage test interface electrically connected to the voltage measurement circuit, and / or a test male interface electrically connected to the voltage measurement circuit, the current measurement circuit and the resistance measurement circuit.

2. The line tracer of claim 1, wherein: The current measurement circuit comprises a direct current measurement circuit, and the voltage measurement circuit comprises a direct voltage measurement circuit and / or an alternating voltage measurement circuit.

3. The line tracer of claim 1, wherein: The transmitter housing is provided with a display screen and a key area, and along the length direction of the transmitter housing, the display screen is arranged near the top of the transmitter housing, and the key area is arranged near the tail of the housing.

4. The line tracer of claim 3, wherein: The key area is provided with at least a switch key, a line searching key, a multimeter key, a function switching key and a test starting key.

5. The line tracer of claim 1, wherein: The transmitter housing is further provided with a first interface for line searching and line matching and a second interface for port flashing, POE testing and length testing, and the first interface and the second interface are arranged at the top end of the transmitter housing.

6. The line tracer of claim 5, wherein: The transmitter housing is further provided with a transmitter baffle, which is arranged at the top of the transmitter housing, and the first interface and the second interface penetrate the transmitter baffle.

7. The line tracer of claim 1, wherein: Further comprising a receiver, the receiver comprises a receiver housing and a signal processor installed in the receiver housing, the signal processor, the receiver housing is provided with a signal probe and an RJ45 interface, the signal probe and the RJ45 interface are in signal communication with the signal processor, the signal probe is arranged at the top end of the receiver housing, and the RJ45 interface is arranged at the bottom end of the receiver housing.

8. The line tracer of claim 7, wherein: The receiver housing is further provided with an illuminating lamp and a line searching signal indicating lamp, the illuminating lamp is arranged at the top of the receiver housing, and the line searching signal indicating lamp is arranged on the upper surface of the receiver housing.

9. The line tracer of claim 7, wherein: The receiver housing comprises a first part and a second part, the first part and the second part are integrally connected, and the signal probe is arranged at the end of the first part away from the second part; The first part is further provided with a sensitivity adjusting knob, and the sensitivity adjusting knob is arranged on the upper surface of the first part.

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