Cable path identification signal transmitter

Abstract

The utility model discloses a cable path identification signal transmitter, and relates to the technical field of transmitters. Comprising a box body and a box cover which are hinged, a protruding block is arranged on the side wall of the box body, a first groove is formed in the top of the protruding block, a second groove is formed in the side wall of the protruding block, and the first groove is communicated with the second groove; a lock catch groove is formed in the side wall of the box cover, an elastic assembly is arranged in the lock catch groove, a lock catch is connected to the elastic assembly, and the other end of the lock catch is located outside the lock catch groove. When the box body and the box cover are closed, the elastic assembly pulls the lock catch to enable the other end of the lock catch to be located in the second groove, and when the box body and the box cover need to be opened, the elastic assembly is compressed to enable the lock catch to be located in the first groove. The power supply module, the signal transmitter module, the central processor module, the display screen, the key module and the signal output port of the transmitter are all installed in the box body for protection, dust accumulation and collision are prevented, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of transmitters, in particular to a cable path identification signal transmitter. Background Art

[0002] A cable path identification transmitter is a specialized device used to locate and trace underground cable paths. It works by sending a signal of a specific frequency to the target cable through a transmitter. A receiver then detects this signal to determine the cable's location, depth, and direction.

[0003] In the prior art, the application number is 202220685214.7, and the patent name is Underground Cable Path Detector, which discloses a transmitter. A display screen is installed in the middle of the upper end of the transmitter body, a heat dissipation hole is opened on the top of the transmitter body, a clamping assembly is installed on one side of the transmitter body, and a charging socket and an output socket are symmetrically installed on one side of the transmitter body, and the output socket is located in the middle of the clamping assembly. When the plug is inserted, the clamping assembly clamps it to prevent the plug from shaking after insertion.

[0004] However, in the above solution, the components of the transmitter body are exposed to the outside world, and dust is easily accumulated when not in use, which reduces the service life. Utility Model Content

[0005] In order to solve the problems of the prior art, the utility model provides a cable path identification signal transmitter, comprising: a box body and a box cover, wherein the box body and the box cover are hinged;

[0006] The power module, signal transmitter module, display screen, central processing unit and key module are all arranged in the box, and the power module, signal transmitter module, display screen and key module are all electrically connected to the central processing unit;

[0007] A protrusion is provided on the side wall of the box body away from the hinged connection with the box cover, a first groove is provided on the top of the protrusion, and a second groove is provided on the side wall of the protrusion facing the hinged connection between the box body and the box cover, and the first groove is connected to the second groove;

[0008] A lock groove is provided on the side wall of the box cover away from the hinged connection with the box body, an elastic component is provided in the lock groove, a lock is connected to the elastic component, and the other end of the lock is located outside the lock groove;

[0009] When the box body and the box cover are closed, the elastic component pulls the lock so that the other end of the lock is located in the second groove. When the box body and the box cover need to be opened, the elastic component is compressed so that the lock is located in the first groove.

[0010] Furthermore, the locking groove includes: a third groove provided on the side wall of the box cover away from the hinged connection with the box body, and a sliding groove provided on the side wall of the box cover adjacent to the third groove;

[0011] The elastic component is located in the sliding groove, and the lock buckle is located in the third groove.

[0012] Furthermore, the chute includes: a first chute and a second chute that are connected to each other, the diameter of the second chute is smaller than the diameter of the first chute, and the second chute is connected to the third groove;

[0013] The elastic component includes: a slide rod slidably connected in the first slide groove and the second slide groove, and the lock is connected to the end of the slide rod located in the second slide groove;

[0014] a spring, sleeved on the slide rod and located in the first slide groove;

[0015] A button is connected to the end of the slide rod away from the lock catch. When the spring is not stressed, the button is located outside the box cover.

[0016] Furthermore, a U-shaped handle is hinged on the side wall of the box.

[0017] Furthermore, a Type-C USB interface is provided in the box.

[0018] Furthermore, a mounting groove is provided on the side wall of the box cover facing the box body, and a sponge is installed in the mounting groove.

[0019] The beneficial effects of the technical solution provided by the utility model are as follows: the utility model is provided with a hinged box body and a box cover, a protrusion is provided on the side wall of the box body, a first groove is provided on the top of the protrusion, and a second groove is provided on the side wall of the protrusion, and the first groove is connected to the second groove; a lock groove is provided on the side wall of the box cover, an elastic component is provided in the lock groove, a lock is connected to the elastic component, and the other end of the lock is located outside the lock groove; when the box body and the box cover are closed, the elastic component pulls the lock so that the other end of the lock is located in the second groove; when the box body and the box cover are to be opened, the elastic component is compressed so that the lock is located in the first groove, and the power module, signal transmitter module, central processing unit module, display screen, key module, and signal output port of the transmitter are all installed in the box for protection to prevent dust accumulation and collision, thereby extending the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural diagram of a cable path identification signal transmitter provided by the utility model;

[0021] Figure 2This is a schematic diagram of the structure of a cable path identification signal transmitter provided by the utility model when it is opened;

[0022] Figure 3 This is a schematic diagram of the structure of a cable path identification signal transmitter provided by the utility model when it is opened;

[0023] Figure 4 This is a cross-sectional schematic diagram of a lock slot provided by the utility model;

[0024] Figure 5 This is a circuit block diagram of a cable path identification signal transmitter provided by the utility model;

[0025] Figure 6 This is a diagram of the coordinated use of a cable path identification signal transmitter and receiver provided by the utility model;

[0026] Figure 7 This is a diagram of how to use a cable path identification signal transmitter provided by the utility model;

[0027] Figure 8 This is a diagram showing how to use a cable path identification signal transmitter provided by the utility model.

[0028] Figure markings: 1-box body; 2-box cover; 3-bump; 4-first groove; 5-second groove; 6-lock; 7-third groove; 8-first slide groove; 9-second slide groove; 10-slide rod; 11-spring; 12-button; 13-U-shaped handle; 14-Type_C USB interface; 15-sponge; 16-connecting plate; 17-receiver; 18-display; 19-button module; 20-signal output port; 21-coupling clamp; 22-display; 23-button module. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0030] In order to make the purpose, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0031] It should be noted that in this embodiment, the directions or positional relationships indicated by "bottom," "top," "left," and "right," etc., are based on the directions or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this application and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific direction. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," etc., are used solely for distinction and should not be construed as indicating or implying relative importance.

[0032] It should also be noted that, in this embodiment, unless otherwise specified or limited, the terms "disposed" and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections, indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention.

[0033] A cable path identification signal transmitter includes a box body 1 and a box cover 2. One end of the top of the box body 1 is hinged to one end of the box cover 2. The power module, signal transmitter module, and central processing unit module of the transmitter are all connected to the box body 1 and packaged through a connecting plate 16. The display screen 18, key module 19, and signal output port 20 are installed on the surface of the connecting plate 16, and the power module, signal transmitter module, display screen 18, and key module 19 are all electrically connected to the central processing unit. A buckle is provided at the other end of the top of the box body 1 and the other end of the box cover 2.

[0034] It should be noted that the power module is a lithium battery, and a Type-C USB interface 14 is also provided on the surface of the connecting plate 16, which is electrically connected to the power module. When charging is needed, the charger plug is connected to the Type-C USB interface, and the AC plug of the charger is connected to the AC 220V / 110V socket; the signal transmitter module includes: an oscillation circuit, a signal conditioning circuit, and a power amplifier circuit. The signal conditioning circuit is electrically connected to the oscillation circuit and the power amplifier circuit, and the power amplifier circuit is electrically connected to the signal output port 20; the button module 19 includes a power on / off button, a frequency button, a power button, and a confirmation button. The frequency button is a transmission frequency switching button. The default setting for the direct connection method is 3.2kHz, the default setting for the coupling method is 3.2kHz, and the default setting for the induction method is 32.7kHz. Press this button again to cycle through the output frequencies. The frequencies of the direct connection method and the coupling method are both: 577Hz, 64Hz, and 110Hz. 0Hz, 1.28kHz, 2.56kHz, 3.2kHz, 4.09kHz, 8.19kHz, 10.2kHz, 32.7kHz, 66kHz, 82kHz, 197kHz; Power button: output power selection button. Press this button to cycle through the output power from "low" to "high"; Confirm button: press and hold for about 2s to control the signal output; press short twice in succession to enter the setting interface; in the setting interface, you can set parameters or exit according to the prompts at the bottom of the display 18; the model of the central processing unit module is STM32 series.

[0035] In addition, the above components are protected by the box body 1 and the box cover 2 to prevent dust accumulation and collision, which will affect the service life. When in use, the buckle between the box body 1 and the box cover 2 is opened, and when not in use, the box body 1 and the box cover 2 are locked by the buckle.

[0036] There can be two latches, which are respectively arranged on opposite sides of the box body 1 and the box lid 2. A protrusion 3 is provided on the top of the side wall of the box body 1 away from the hinge with the box lid 2. The latch includes a first groove 4 opened on the top of the protrusion 3, and a second groove 5 opened on the side wall of the protrusion 3 facing the hinge of the box body 1 and the box lid 2. The first groove 4 is connected to the second groove 5, and the whole forms an L-shaped groove.

[0037] The latch also includes a latch groove on the side wall of the box cover 2 away from the hinged connection with the box body 1, and an elastic component arranged in the latch groove. The latch groove includes: a slide groove on the side wall of the box cover 2, and a third groove 7 on the side wall of the box cover 2 away from the hinged connection with the box body 1. The slide groove includes: a first slide groove 8 and a second slide groove 9 that are connected. The first slide groove 8 faces the outside of the left or right wall of the box cover 2. The diameter of the second slide groove 9 is smaller than the diameter of the first slide groove 8. The second slide groove 9 is connected to the third groove 7; the elastic component includes: a slide rod 10, which is slidably connected to the first slide rod. The lock catch 6 is located in the third groove 7, and the end of the lock catch 6 away from the slide rod 10 is located outside the third groove 7. A spring 11 is provided in the first slide groove 8. The diameter of the spring 11 is larger than the diameter of the second slide groove 9, and the spring 11 is sleeved on the slide rod 10. The end of the slide rod 10 away from the lock catch 6 is connected to a button 12. The diameter of the button 12 is smaller than the diameter of the first slide groove 8 and larger than the inner diameter of the spring 11. When the spring 11 is not under force, the button 12 is located outside the first slide groove 8.

[0038] When it is necessary to lock the box body 1 and the box cover 2, the button 12 is pressed, the spring 11 is compressed, the button 12 pushes the slide bar 10, and the slide bar 10 pushes the lock catch 6 to slide inward, and then the box cover 2 is closed. At this time, the end of the lock catch 6 is just located in the first groove 4, and the button 12 is released. The spring 11 extends and pushes the button 12 to move outward. The button 12 pulls the slide bar 10 and the lock catch 6 to move. At this time, the lock catch 6 is just located in the second groove 5, making the box cover 2 unable to be opened; when it is necessary to unlock the box body 1 and the box cover 2, the button 12 is pressed so that the lock catch 6 is located in the first groove 4, and the box cover 2 can be opened by turning it upward.

[0039] Furthermore, a U-shaped handle 13 is hinged on the side wall of the box body 1 to facilitate workers to carry the cable path identification signal transmitter.

[0040] Furthermore, a mounting groove is provided on the side wall of the box cover 2 facing the box body 1 , and a sponge 15 is installed in the mounting groove to protect the display screen 18 , the button module 19 , and the signal output port 20 .

[0041] It should also be noted that the cable path identification signal transmitter is used in conjunction with an existing receiver, see Figure 6Its basic working principle is: the transmitter generates electromagnetic waves and sends signals to the underground metal pipeline to be detected. After the metal pipeline senses the electromagnetic waves, an induced current is generated on the surface of the cable. The induced current will propagate along the metal cable to a distance. During the propagation of the current, electromagnetic waves will be radiated to the ground through the cable. In this way, when the receiver is detecting on the ground, it will receive the electromagnetic wave signal on the ground directly above the underground metal pipeline. The position and direction of the underground metal pipeline can be determined by the changes in the strength of the received signal.

[0042] Secondly, see Figure 7 This cable path identification signal transmitter can be used for detection using a direct connection method. Unplug the ground wires at both ends of the cable's metal sheath. Unplug the neutral and ground wires of the low-voltage cable. Connect a direct test lead to signal output port 20. Clamp the red end of the direct test lead directly to the exposed metal part of the pipeline, and ground the black end. Current flows from the transmitter through the core wire, enters the earth at the opposite end of the cable, and flows back to the transmitter at the near end. This connection method can sense a strong signal during ground detection, without the influence of induced current on the cable itself. The signal characteristics are relatively clear, and the instrument's current direction measurement function can be fully utilized. The signal flows along the well-insulated core wire and does not flow into adjacent pipelines, especially intersecting metal pipes. This makes it ideal for pathfinding in complex environments. Furthermore, due to the cable being grounded, the signal voltage flowing through the cable is very low, which is less likely to cause capacitive coupling to adjacent lines, reducing interference.

[0043] In addition, when it is not possible to connect directly to the pipeline to be tested, a coupling clamp can be used for detection using the coupling method. The signal output port 20 is connected to the coupling clamp, and the coupling clamp is clamped to the cable body (note that it cannot be clamped above the ground wire). The coupling clamp is equivalent to the primary of the transformer, and the cable metal sheath-earth loop is equivalent to the secondary of the transformer (single turn). The magnitude of the secondary coupling current is closely related to the loop resistance (mainly the ground resistance at both ends). The smaller the resistance, the greater the current. Figure 8 This method is suitable for the detection of ultra-high voltage single-core cables. Since the power frequency current flowing through the core wire of the single-core cable is very strong and there is no three-phase cancellation effect of the three-core turnkey cable (which manifests itself as a relatively small zero-sequence current), if the coupling clamp is clamped on the cable body, it will easily cause magnetic saturation of the coupling clamp and no signal will be sent. At this time, the coupling clamp should be clamped on its sheath grounding wire.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A cable path identification signal transmitter, characterized in that: include: A box body (1) and a box cover (2), wherein the box body (1) and the box cover (2) are hinged; The power supply module, the signal transmitter module, the display screen, the central processing unit and the key module are all arranged in the box (1), and the power supply module, the signal transmitter module, the display screen and the key module are all electrically connected to the central processing unit; A convex block (3) is provided on the side wall of the box body (1) away from the hinged connection with the box cover (2), a first groove (4) is provided on the top of the convex block (3), and a second groove (5) is provided on the side wall of the convex block (3) toward the hinged connection between the box body (1) and the box cover (2), and the first groove (4) is communicated with the second groove (5); A lock groove is provided on the side wall of the box cover (2) away from the hinged portion with the box body (1), an elastic component is provided in the lock groove, a lock (6) is connected to the elastic component, and the other end of the lock (6) is located outside the lock groove; When the box body (1) and the box cover (2) are closed, the elastic component pulls the lock catch (6) so that the other end of the lock catch (6) is located in the second groove (5); when the box body (1) and the box cover (2) need to be opened, the elastic component is compressed so that the lock catch (6) is located in the first groove (4).

2. The cable path identification signal transmitter according to claim 1, characterized in that: The locking groove comprises: a third groove (7) provided on the side wall of the box cover (2) away from the hinged portion with the box body (1), and a sliding groove provided on the side wall of the box cover (2) adjacent to the third groove (7); The elastic component is located in the sliding groove, and the lock buckle (6) is located in the third groove (7).

3. The cable path identification signal transmitter according to claim 2, characterized in that: The chute comprises: a first chute (8) and a second chute (9) which are connected to each other, the diameter of the second chute (9) is smaller than the diameter of the first chute (8), and the second chute (9) is connected to the third groove (7); The elastic component comprises: a slide rod (10) slidably connected in the first slide groove (8) and the second slide groove (9); the lock buckle (6) is connected to the end of the slide rod (10) located in the second slide groove (9); a spring (11) sleeved on the slide rod (10) and located in the first slide groove (8); A button (12) is connected to the end of the slide rod (10) away from the lock catch (6); when the spring (11) is not stressed, the button (12) is located outside the box cover (2).

4. The cable path identification signal transmitter according to claim 1, characterized in that: A U-shaped handle (13) is hinged on the side wall of the box body (1).

5. The cable path identification signal transmitter according to claim 1, characterized in that: A Type-C USB interface (14) is provided in the box (1).

6. The cable path identification signal transmitter according to claim 1, characterized in that: The box cover (2) is provided with a mounting groove on the side wall facing the box body (1), and a sponge (15) is installed in the mounting groove.

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