Signal detection device of submarine cable detection system

Abstract

The utility model discloses a signal detection device of a submarine cable detection system, and belongs to the technical field of detection equipment. A user controls a first clamping arm and a second clamping arm to cooperate with each other to clamp and limit the four side faces of the acquisition board, the user can conveniently control the acquisition board and the extension sockets to be electrically connected, in the actual detection process, one group of the extension sockets in the containing groove is specially connected with the signal input end (IN) of the acquisition board, and the other group of the extension sockets in the containing groove is specially connected with the operational amplifier output end (OUT) of the acquisition board. A technician connects the acquisition board with the extension socket and generates data on the display screen, and meanwhile, because the small oscilloscope module (including the display screen, the knob and the key) is integrated in the shell and the SMA terminal is fixed at the bottom of the shell and is used for receiving signals, the real-time waveform of the operational amplifier output end (before AD) of the acquisition board can be directly displayed on the display screen, an external oscilloscope is not needed, and the cost is reduced. Through cooperation of the components, the problem of on-site rapid verification of a front analog link (filtering and amplification) of a signal acquisition board in submarine cable engineering is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to detection equipment technical field especially relates to a kind of submarine cable detection system signal detection device. BACKGROUND

[0002] In submarine cable detection system engineering, signal acquisition board is one of core components, it is responsible for the weak submarine cable signal (usually low-frequency alternating current signal, such as 25Hz) obtained by sensor or coupler is carried out power frequency noise filtering, program-controlled amplification, then is sent into analog-digital converter (ADC) and is digitized, the performance of the front-end analog link of acquisition board directly influences the signal-to-noise ratio and measurement accuracy of detection system.

[0003] In detection process, technician needs to disassemble acquisition board from equipment cabinet, connects its signal input end to portable signal source by flying wire, then flying wire operational amplifier output end to external oscilloscope probe, but in actual use process, on-site technician needs to manually connect signal source, acquisition board, oscilloscope three sets of equipment, in the process of connection, acquisition board is light in quality and is easily moved, lead to wiring process is complex and is easily connected wrong (such as misconnection test point, polarity reverse connection), lead to the detection efficiency of entire detection process is lower, with certain limitation, to solve above problem, we propose a kind of submarine cable detection system signal detection device. UTILITY MODEL CONTENT

[0004] The utility model is to provide a kind of submarine cable detection system signal detection device, improve the detection efficiency of entire device, solve the problem that original device acquisition board is not limited in detection device, and detection equipment complex leads to technician detection efficiency is lower.

[0005] The utility model discloses a technical scheme is: a kind of submarine cable detection system signal detection device, the device includes test device ontology, the test device ontology includes: shell top is provided with display screen, key and knob are provided below the display screen;Placement groove is set on the shell, is located below the position of the key, the placement groove is internally provided with row plug;Cover plate is hingedly set on the shell, and the cover plate covers the placement groove;Clamping device is provided on the test device ontology, and the clamping device includes: the empty slot one being symmetrically opened in the placement groove interior, the empty slot one is internally provided with slide rod one, spring one is set on the slide rod one;Clamping arm one is slidably arranged on the slide rod one, the empty slot two is opened on the clamping arm one, the empty slot two is internally provided with slide rod two, and spring two is set on the slide rod two;Clamping arm two is slidably arranged on the slide rod two;Connecting block is symmetrically arranged on the cover plate, the shell is provided with the empty slot of cooperation the placement of connecting block, and the connecting block is provided with insertion hole and is penetrated;Box body is set in the shell interior, the box body is internally provided with stop block, spring three is symmetrically provided on the both sides of the stop block, and the other end of the spring three is provided with plug rod, and the plug rod is inserted with the insertion hole.

[0006] Further, the bottom of the cover plate is provided with a fixing hole, a bolt is penetrated through the fixing hole, and a threaded hole is arranged on the shell and is threadedly connected with the bolt.

[0007] Further, the top of the box body is provided with a sliding groove, a sliding block is slidably arranged on the sliding groove, an arc block is arranged on the top of the sliding block, the sliding block is connected with the plug rod, a rod body is penetrated through the shell, a C-shaped block is arranged at the bottom of the rod body, and the C-shaped block is abutted with the arc block at both ends of the bottom.

[0008] Further, the C-shaped block is provided with a pulley at the bottom.

[0009] Further, the rod body is provided with a disc at the top.

[0010] Further, the rod body is provided with a disc at the top.

[0011] Further, the clamping arm one and the clamping arm two are provided with protective pads.

[0012] Beneficial effect: the user controls the cooperation of the first clamping arm and the second clamping arm to clamp and limit four sides of the collection plate, ensures the stability of the collection plate in the test process, facilitates the user to control the electrical connection of the collection plate and the row plug, thereby detecting the collection plate, in the actual detection process, a group of row plugs in the placing groove are specially connected with the signal input end (IN) of the collection plate, another group of row plugs are specially connected with the operational amplifier output end (OUT) of the collection plate, the technical personnel connect the collection plate and the row plug, and data is generated on the display screen, meanwhile, because the small oscilloscope module (containing the display screen, the knob and the button) is integrated in the shell, the SMA terminal fixed at the bottom of the shell is used for receiving the signal, therefore, the real-time waveform of the operational amplifier output end (AD before) of the collection plate can be directly displayed on the display screen, without external connection of the oscilloscope, and the components are matched, so that the on-site rapid verification problem of the front-end analog link (filtering + amplification) of the signal collection plate in the submarine cable engineering is solved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a structural schematic diagram of the utility model;

[0014] Figure 2 is a structural schematic diagram of the first clamping arm and the second clamping arm in the utility model;

[0015] Figure 3 is a plug-in structure schematic diagram of the plug rod and the connecting block in the utility model;

[0016] Figure 4 is an internal structure schematic diagram of the box body in the utility model.

[0017] 1, test device body; 11, shell; 12, display screen; 13, button; 14, knob; 15, placing groove; 151, row plug; 16, cover plate; 161, bolt; 17, SMA terminal;

[0018] 2, clamping device; 21, empty groove one; 211, sliding rod one; 212, spring one; 22, first clamping arm; 221, empty groove two; 222, sliding rod two; 223, spring two; 23, second clamping arm; 24, connecting block; 241, insertion hole; 25, box body; 251, stop block; 252, spring three; 253, plug rod; 26, sliding block; 261, sliding groove; 262, arc block; 27, rod body; 271, C-shaped block; 272, pulley; 28, disc; 281, spring four. DETAILED DESCRIPTION

[0019] In order to make the technical scheme of the utility model more clear, the utility model is further described in detail in combination with the drawings and specific embodiments.

[0020] Reference Figures 1-4The utility model provides a kind of submarine cable detection system signal detection device, the device includes test device body 1, the test device body 1 includes: the top of shell 11 is provided with display screen 12, button 13 and knob 14 are provided below display screen 12;Placement slot 15 is arranged on the shell 11, is located below the position of button 13, the inside of placement slot 15 is provided with row plug 151;Cover plate 16 is hingedly arranged on the shell 11, and the cover plate 16 covers the placement slot 15;Clamping device 2 is arranged on the test device body 1, and the clamping device 2 includes: the empty slot one 21 being symmetrically opened in the inside of placement slot 15, the inside of empty slot one 21 is provided with slide rod one 211, spring one 212 is sleeved on the slide rod one 211;Clamping arm one 22 is slidably arranged on the slide rod one 211, and the clamping arm one 22 is provided with the empty slot two 221, and the inside of empty slot two 221 is provided with slide rod two 222, spring two 223 is sleeved on the slide rod two 222;Clamping arm two 23 is slidably arranged on the slide rod two 222;Connection block 24 is symmetrically arranged on the cover plate 16, and the shell 11 is provided with the empty slot of being placed in cooperation with the connection block 24, and the insertion hole 241 is arranged through the connection block 24;Box body 25 is arranged in the inside of shell 11, the inside of box body 25 is provided with stop block 251, spring three 252 is symmetrically arranged on the both sides of stop block 251, and the other end of spring three 252 is provided with insertion rod 253, and the insertion rod 253 is inserted with the insertion hole 241.

[0021] When the device is used, the user takes out the whole test device body 1, controls the insertion rod 253 and the insertion hole 241 to separate, so as to open the cover plate 16, the technician places the signal acquisition board into the placement slot 15, while another technician controls the clamping arm one 22 to move in opposite directions on the empty slot one 21, to expose the middle space, and the technician controls the clamping arm two 23 to move in opposite directions on the empty slot two 221 of the clamping arm one 22, to expose the middle space, and then places the acquisition board into the space formed by the clamping arm one 22 and the clamping arm two 23, the technician first loosens the clamping arm one 22, under the elastic force of the spring one 212, the clamping arm one 22 moves on the slide rod one 211 to reset, so that the clamping arm one 22 clamps and limits the two sides of the acquisition board, the user loosens the clamping arm two 23, and under the elastic force of the spring two 223, the clamping arm two 23 slides on the slide rod two 222 to reset, to clamp and limit the acquisition board, so that the clamping arm one 22 and the clamping arm two 23 clamp and limit the four sides of the acquisition board, to ensure the stability of the acquisition board during the test, to facilitate the user to control the electrical connection between the acquisition board and the row plug 151, to detect the acquisition board.

[0022] Specific, slide bar 211 is arranged in the empty slot 21, both ends of slide bar 211 and the inner side wall of empty slot 21 are fixedly connected, spring 212 is sleeved on slide bar 211, a slide block is arranged on slide bar 211, the slide block and the empty slot 21 are slidably connected, the slide block and the clamping arm 22 are fixedly connected, and one end of the slide block and the spring 212 are fixedly connected, the other end of the spring 212 and the inner side wall of the empty slot 21 are fixedly connected, so that the elastic force of the spring 212 cooperates with the limiting effect of the empty slot 21, and the slide block on the slide bar 211 can cooperate with the clamping arm 22 to move horizontally under the action of external force.

[0023] Specific, the empty slot 221 is arranged on the clamping arm 22, the slide bar 222 is arranged in the empty slot 221, and the slide block arranged on the slide bar 222 cooperates with the spring 223 to control the horizontal movement of the clamping arm 23, so that the clamping arm 22 and the clamping arm 23 can be controlled to move horizontally (the shape and movement track of the slide block on the slide bar 211 and the slide bar 222 belong to the public knowledge, and are not embodied in detail in the figure).

[0024] In the actual detection process, the row plug 151 placed in the placing groove 15 adopts a physical layout of two in a group, one group is specially connected with the signal input end (IN) of the acquisition board, and the other group is specially connected with the operational amplifier output end (OUT) of the acquisition board. The technical personnel connects the acquisition board and the row plug 151, the acquisition points on the acquisition board are accurately connected with the contact points on the row plug 151, and data is generated on the display screen 12. At the same time, because the small oscilloscope module (including the display screen 12, the knob 14 and the button 13) is integrated in the shell 11, the SMA terminal 17 fixedly arranged at the bottom of the shell 11 is used to receive signals, so that the real-time waveform of the acquisition board operational amplifier output end (before AD) can be directly displayed on the display screen 12, without the need of external oscilloscope. The main function of the signal acquisition board detection is to detect whether the signal is normal before entering AD. Because the cable signal in the submarine cable detection project is greatly disturbed by the power frequency, the signal needs to be filtered and amplified. Generally, there are 5 / 10 / 20 / 40 amplifications. When a small signal generator inputs a signal (such as 0.2V), the display screen should display a 1V waveform when the signal is amplified by 5 times. In this way, the device integrates various components on the shell 11, which is convenient to carry.

[0025] Further, the cover plate 16 is provided with a fixing hole at the bottom of each corner, and a bolt 161 is arranged to penetrate the fixing hole, and the shell 11 is provided with a threaded hole and the bolt 161 is threadedly connected. When the user detects the acquisition board, in order to prevent external factors from interfering with the stability of the acquisition board during the detection process, the user can use the bolt 161 to fixedly connect the cover plate 16 and the shell 11, so as to prevent the placing groove 15 from being disturbed.

[0026] Further, the box 25 is provided with a sliding groove 261 on the top, a sliding block 26 is slidably arranged on the sliding groove 261, the sliding block 26 is provided with an arc-shaped block 262 on the top, a rod 27 is throughly arranged on the shell 11, the rod 27 is provided with a C-shaped block 271 on the bottom, and the C-shaped block 271 is in abutment with the arc-shaped block 262 on both ends of the bottom. A user presses the rod 27, the rod 27 controls the movement of the C-shaped block 271, the C-shaped block 271 moves and abuts against the arc-shaped block 262, the arc-shaped block 262 is pressed to move in the opposite direction, the arc-shaped block 262 controls the synchronous movement of the sliding block 26, the sliding block 26 is fixedly connected with the insertion rod 253, and therefore the sliding block 26 controls the synchronous movement of the insertion rod 253, the insertion of the insertion rod 253 and the insertion hole 241 is released, at this time, the user can open the cover plate 16, and the cooperation of various components improves the flexibility of the whole device, so that the cover plate 16 can be quickly released when it needs to be opened.

[0027] Further, the C-shaped block 271 is provided with a pulley 272 on the bottom. The arrangement of the pulley 272 reduces the friction between the arc-shaped block 262 and the C-shaped block 271, and improves the fluency of the abutment between the arc-shaped block 262 and the C-shaped block 271.

[0028] Further, the rod 27 is provided with a disc 28 on the top. The arrangement of the disc 28 provides a force point and a force space for the user to control the movement of the rod 27.

[0029] Further, the rod 27 is provided with a spring four 281. Under the elastic force of the spring four 281, the rod 27 can be quickly reset after being pressed, improving the practicability of the whole device.

[0030] Further, the clamping arm one 22 and the clamping arm two 23 are provided with protective pads. The arrangement of the protective pads facilitates the protection of the outer wall of the collection plate by the clamping arm one 22 and the clamping arm two 23, and avoids damage to the collection plate during clamping.

[0031] The above-described embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as a limitation on the scope of the present application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A signal detection device for a submarine cable detection system, the device comprising a test device body (1), the test device body (1) comprising: A housing (11) is provided with a display screen (12) on the top thereof, and buttons (13) and a knob (14) are provided below the display screen (12); A placement slot (15) is provided on the housing (11) and is located below the button (13), and a socket (151) is provided inside the placement slot (15); A cover plate (16) is hingedly mounted on the housing (11), and the cover plate (16) covers the placement slot (15); The feature is that a clamping device (2) is provided on the test device body (1), and the clamping device (2) comprises: A hollow groove (21) is symmetrically provided inside the placement groove (15), a slide rod (211) is provided inside the hollow groove (21), and a spring (212) is sleeved on the slide rod (211); A clamping arm (22) is slidably disposed on the slide rod (211), and a second slot (221) is provided on the clamping arm (22). A second slide rod (222) is provided inside the second slot (221), and a second spring (223) is sleeved on the second slide rod (222); A second clamping arm (23) is slidably disposed on the second sliding rod (222); A connecting block (24) is symmetrically arranged on the cover plate (16); a hollow groove for fitting the connecting block (24) is provided on the housing (11); and a socket (241) is provided through the connecting block (24); The box body (25) is arranged inside the shell (11), and a stopper (251) is arranged inside the box body (25), and spring three (252) is symmetrically arranged on both sides of the stopper (251), and an insertion rod (253) is arranged at the other end of the spring three (252), and the insertion rod (253) is plugged into the socket (241).

2. A submarine cable detection system signal detection device according to claim 1, characterized in that: The four corners of the bottom of the cover plate (16) are provided with fixing holes, and bolts (161) are provided through the fixing holes. The housing (11) is provided with threaded holes and is threadedly connected to the bolts (161).

3. The signal detection device for a submarine cable detection system according to claim 1, characterized in that: The box body (25) is provided with a slide groove (261) on the top, a slider (26) is slidably provided on the slide groove (261), an arc block (262) is provided on the top of the slider (26), a slider (26) is provided on the arc block (262) and is connected to the insertion rod (253), a rod body (27) is provided through the shell (11), a C-shaped block (271) is provided at the bottom of the rod body (27), and both ends of the bottom of the C-shaped block (271) are in contact with the arc block (262).

4. A submarine cable detection system signal detection device according to claim 3, characterized in that: A pulley (272) is provided at the bottom of the C-shaped block (271).

5. The signal detection device for a submarine cable detection system according to claim 3, characterized in that: A disc (28) is provided on the top of the rod body (27).

6. A submarine cable detection system signal detection device according to claim 5, characterized in that: A spring four (281) is sleeved on the rod body (27).

7. The signal detection device for a submarine cable detection system according to claim 1, characterized in that: Protection pads are provided on the clamping arm 1 (22) and the clamping arm 2 (23).

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