Special electroscope for railway contact network

Abstract

The utility model discloses a special electroscope for a railway contact network, which belongs to the technical field of electroscopes and comprises a base shell, one side of the base shell is fixedly connected with a display screen used for displaying test results, the top of the base shell is fixedly connected with an insulating rod, and the top of the insulating rod is rotatably connected with a first turnover rod. The top of the inner cavity of the first overturning rod is fixedly connected with a current induction contact block used for testing the contact network, the first overturning rod and the second overturning rod wrap the contact network, the contact network can be directly used as a supporting point, and a relatively fixed and stable position can be provided for electricity testing equipment; dislocation of the detection probe and the contact net caused by factors such as shaking of arms of a worker is avoided, so that the stability in the detection process is ensured, the current induction contact block and the contact net are in good and stable contact, detected data such as current are more accurate and reliable, data fluctuation is reduced, the accuracy of a test result is improved, and the detection efficiency is improved. And a more reliable basis is provided for operation and maintenance of the railway contact network.

Description

Technical Field

[0001] The utility model relates to the field of electrometers, in particular to an electrometer dedicated to a railway contact network. Background Art

[0002] As an important national infrastructure and a popular means of transportation, railways play a vital role in the national economy and social development. Among them, the overhead contact network, as a key power supply equipment for electrified railways, provides stable electricity for electric locomotives. The safety and reliability of its operating status are directly related to the normal order of railway transportation.

[0003] After massive searches, it was found that the prior art publication number is CN218412695U, which discloses a special tester for railway contact network. The scheme includes a tester body, which is supported and connected by a telescopic rod at the bottom. The bottom end of the telescopic rod is connected with a rotating block, which is embedded in the sliding body. The sliding body is restricted in the guide groove on the top surface of the guide body. A clamping sleeve is provided at the bottom of the guide body. The clamping sleeve includes a first arc-shaped clamping plate and a second arc-shaped clamping plate with elasticity. A clamping entrance is provided between the lower end edges of the first arc-shaped clamping plate and the second arc-shaped clamping plate for easy clamping on the worker's arm.

[0004] Therefore, based on the above search and in combination with the existing, when using the above-mentioned device to test the contact network, if the equipment is fixed on the worker's arm, it is impossible to provide a stable support or positioning for the testing equipment, resulting in the test process. The detection probe and the contact network may be misaligned, etc., which may cause the measured current data to be unstable or fluctuate greatly, thereby affecting the accuracy of the test results. Therefore, the utility model provides a special tester for railway contact networks to solve the above-mentioned problems. Utility Model Content

[0005] The utility model aims to provide a special electric tester for railway contact network to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: it includes a base shell, one side of the base shell is fixedly connected to a display screen for displaying test results, the top of the base shell is fixedly connected to an insulating rod, the top of the insulating rod is rotatably connected to a flip rod 1, the top of the inner cavity of the flip rod 1 is fixedly connected to a current sensing contact block for testing the contact network, the current sensing contact block measures the current value in the contact network after contacting the contact network, one side of the flip rod 1 is rotatably connected to a flip rod 2, and the current sensing contact block is fixed to the top of the contact network through the cooperation of the flip rod 1 and the flip rod 2.

[0007] Furthermore, a clamping block is fixedly connected to the top of the insulating rod, and the inner cavity of the clamping block is fixedly connected to a fixed shaft for providing rotation of flip rod one and flip rod two, and the inner cavity of the clamping block is provided with a semi-annular groove, and the inner cavity of the semi-annular groove is fixedly connected to a spring for pushing flip rod one and flip rod two to flip to both sides respectively.

[0008] Furthermore, the inner cavity of the insulating rod is slidably connected with a pull rope for pulling the flip rod one and the flip rod two to flip, and the flip rod one and the flip rod two are closed by tightening the pull rope, and the top of the pull rope is fixedly connected to the bottom of the flip rod one and the flip rod two respectively.

[0009] Furthermore, the inner cavity of the base shell is provided with an arcuate groove for tightening the pull rope, the inner cavity of the arcuate groove is slidably connected with a pull rod for moving the pull rope, and the outer wall of the pull rod is fixedly connected with an extension block for pulling the pull rod to slide.

[0010] Furthermore, the inner cavities of the flip rod 1 and the flip rod 2 are both slidably connected with a push block for contacting the contact network close to the current sensing contact block, and the inner cavities of the flip rod 1 and the flip rod 2 are both provided with an oblique groove for squeezing the push block to slide upward.

[0011] Furthermore, a handle is fixedly connected to the outer wall of the base shell, and two handles are provided, and the two handles are respectively fixedly connected to the two ends of the outer wall of the base shell.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. By wrapping the flip rod 1 and the flip rod 2 around the outside of the contact network, the contact network can be used as a support point to provide a relatively fixed and stable position for the electrical testing equipment, thereby avoiding the misalignment of the detection probe and the contact network caused by factors such as the shaking of the worker's arm, thereby ensuring the stability during the detection process, so that the current sensing contact block maintains a good and stable contact with the contact network, ensuring that the detected current and other data are more accurate and reliable, reducing data fluctuations, improving the accuracy of the test results, and providing a more reliable basis for the operation and maintenance of the railway contact network.

[0014] 2. By setting the push block to squeeze, the push block slides upward in the oblique slot through the sliding block, and pushes the contact network to be tested upward, while reducing the shaking range of the contact network, avoiding the position deviation of the contact network between the flip rod 1 and the flip rod 2, resulting in the current sensing contact block and the contact network not being able to fully contact, or only partially contacting, resulting in increased contact resistance and unstable contact. This will make the detected current signal inaccurate, or even unable to detect the signal, resulting in misjudgment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1This is a structural diagram of the whole of a special electrometer for railway contact network;

[0016] Figure 2 This is a structural cross-sectional view of a clamping block in a special electroscope for railway contact network;

[0017] Figure 3 This is a structural diagram of a push block in a special electrometer for railway contact network;

[0018] Figure 4 This is a structural cross-sectional view of a base shell in a special electroscope for railway contact network;

[0019] Figure 5 The diagram is a structural diagram of a pull rope in a special electroscope for railway contact network.

[0020] In the figure: 1, base shell; 2, display screen; 3, insulating rod; 4, flip rod one; 5, flip rod two; 6, current sensing contact block; 101, handle; 301, clamping block; 302, fixed axis; 303, semi-annular groove; 304, spring; 305, slider; 306, pull rope; 307, arc groove; 308, pull rod; 309, limit block; 310, arc limit groove; 311, extension block; 312, pressure sensing block two; 313, pressure sensing block one; 314, forked rope; 601, push block; 602, oblique groove; 603, sliding block; 604, oblique block. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example 1: Please refer to Figure 1 to Figure 5A special electrician for railway contact network, comprising a base shell 1, one side of the base shell 1 is fixedly connected with a display screen 2 for displaying test results, the top of the base shell 1 is fixedly connected with an insulating rod 3, the top of the insulating rod 3 is rotatably connected with a flip rod 1 4, the top of the inner cavity of the flip rod 1 4 is fixedly connected with a current sensing contact block 6 for testing the contact network, the current sensing contact block 6 measures the current value in the contact network after contacting the contact network, the current sensing contact block 6 transmits the measured current signal to the signal processing unit inside the base shell 1, the unit amplifies, filters and processes the signal, and then displays the accurate current measurement value on the display screen 2, one side of the flip rod 1 4 is rotatably connected with a flip rod 2 5, and the current sensing contact block 6 is fixed to the top of the contact network through the cooperation of the flip rod 1 4 and the flip rod 2 5, ensuring that the current sensing contact block 6 will not shake or shift at will during the detection process, so that the current sensing contact block 6 maintains good and stable contact with the contact network, so that the detected current and other data can be guaranteed to be more accurate and reliable, thereby improving the accuracy of the test results.

[0023] See also Figure 2-3 , a clamping block 301 is fixedly connected to the top of the insulating rod 3, and the inner cavity of the clamping block 301 is fixedly connected to a fixed shaft 302 for providing rotation of the flip rod 1 4 and the flip rod 2 5, and a semi-annular groove 303 is opened in the inner cavity of the clamping block 301, and a total of four semi-annular grooves 303 are provided, which are respectively located on both sides of the flip rod 1 4 and the flip rod 2 5, and the inner cavities of the semi-annular grooves 303 are fixedly connected with springs 304 for pushing the flip rod 1 4 and the flip rod 2 5 to flip to both sides respectively. Specifically, a slider 305 is fixedly connected to the top of the spring 304, and the number of sliders 305 is the same as that of the semi-annular grooves 303, and the four sliders 305 are respectively fixedly connected to the two ends of the flip rod 1 4 and the flip rod 2 5, so that when the flip rod 1 4 and the flip rod 2 5 are closed, the slider 305 squeezes and accumulates force on the spring 304, so that when the flip rod 1 4 and the flip rod 2 5 lose thrust, the spring 304 uses its own elasticity to push the flip rod 1 4 and the flip rod 2 5 to flip and unfold to both sides through the slider 305;

[0024] See also Figure 2The bottom of the flip rod 1 4 and the flip rod 2 5 are fixedly connected with a pressure sensing block 1 313, and the inner cavity of the clamping block 301 is fixedly connected with a pressure sensing block 2 312 corresponding to the pressure sensing block 1 313, so that when the flip rod 1 4 and the flip rod 2 5 are closed and the contact network needs to be detected, the pressure sensing block 1 313 contacts the pressure sensing block 2 312 to drive the current sensing contact block 6, thereby preventing the current sensing contact block 6 from being mistakenly driven for detection when the flip rod 1 4 and the flip rod 2 5 are not correctly closed on the contact network, resulting in inaccurate detection results or misjudgment, effectively ensuring that the flip rod 1 4 and the flip rod 2 5 reach the correct position and state when closed, so that the current sensing contact block 6 can contact the contact network with appropriate force and angle, ensuring the stability and reliability of the contact, and avoiding abnormal detection data due to poor contact or contact position deviation.

[0025] See also Figure 2 and Figure 4-5 The inner cavity of the insulating rod 3 is slidably connected with a pull rope 306 for pulling the flip rod 1 4 and the flip rod 2 5 to flip. The pull rope 306 itself has a certain elastic force, and this elastic force is greater than the spring 304. After the flip rod is closed, the pull rope 306 can apply a continuous and stable pulling force to the flip rod through this elastic force, so as to maintain the closed state of the flip rod, and the flip rod 1 4 and the flip rod 2 5 are pulled closed by tightening the pull rope 306. The top of the pull rope 306 is respectively fixedly connected to the bottom of the flip rod 1 4 and the flip rod 2 5. Specifically, the top of the pull rope 306 is fixedly connected with a forked rope 314, and the top of the forked rope 314 is fixedly connected to the bottom of the flip rod 1 4 and the flip rod 2 5, so that when the pull rope 306 moves, the forked rope 314 pulls the flip rod 1 4 and the flip rod 2 5 to flip.

[0026] See also Figure 2 and Figure 4-5 The inner cavity of the base shell 1 is provided with an arc-shaped groove 307 for tightening the pull rope 306, and the inner cavity of the arc-shaped groove 307 is slidably connected with a pull rod 308 for moving the pull rope 306, and the bottom of the pull rope 306 is fixedly connected to the outer wall of the pull rod 308, and the outer wall of the pull rod 308 is fixedly connected with an extension block 311 for pulling the pull rod 308 to slide. Specifically, the outer wall of the pull rod 308 is fixedly connected with a limit block 309 for limiting the pull rod 308, and the inner cavity of the base shell 1 is provided with an arc-shaped limit groove 310 for providing sliding of the limit block 309, thereby preventing the pull rod 308 from the inner cavity of the arc-shaped groove 307, (please refer to Figure 4 ) When the extension block 311 is pulled through the pull rod 308 to drive the pull rope 306 to move upward inside the arc groove 307 to enter point A, the upward movement of the pull rod 308 can relax the pull rope 306, so that the flip rod 1 4 and the flip rod 2 5 lose the tension and relax. Conversely, the extension block 311 is pressed to drive the pull rod 308 to pull the pull rope 306 to move downward inside the arc groove 307 to reach point A (please refer to Figure 4 ) At point B, the downward movement of the pull rod 308 can tighten the pull rope 306, and then pull the flip rod 1 4 and the flip rod 2 5 through the forked rope 314 to flip and close.

[0027] See also Figure 2 The inner cavities of the flip rod 1 4 and the flip rod 2 5 are both slidably connected with a push block 601 for contacting the contact network close to the current sensing contact block 6. There are two push blocks 601, both of which are made of polytetrafluoroethylene insulation material. The inner cavities of the flip rod 1 4 and the flip rod 2 5 are both provided with an oblique groove 602 for squeezing the push block 601 to slide upward. Specifically, the inner cavities of the two oblique grooves 602 are slidably connected with a sliding block 603, and the two sliding blocks 603 are respectively fixedly connected to the two push blocks 601. The flip rod 1 4 and the flip rod The inner cavity of the second 5 is fixedly connected with an oblique block 604 for limiting the push block 601, and the ends of the two push blocks 601 close to the sliding block 603 are both fitted on the outer wall of the oblique block 604, so that during the closing process of the two flip rods 1 4 and the flip rod 2 5, the push block 601 is squeezed, so that the push block 601 slides upward in the oblique groove 602 through the sliding block 603, and pushes the contact network to be tested to move up. In addition, during the sliding process of the push block 601, the oblique block 604 is used to limit it, so that the push block 601 can be effectively prevented from flipping.

[0028] See also Figure 1 A handle 101 is fixedly connected to the outer wall of the base shell 1, and there are two handles 101 in total. The two handles 101 are respectively fixedly connected to the two ends of the outer wall of the base shell 1. Then, when the operator moves, he can hold the handle 101 and move the base shell 1 to different positions as needed, so that the current sensing contact block 6 can accurately contact the contact network at different positions, thereby detecting different positions of the contact network and ensuring the comprehensiveness of the detection.

[0029] Working principle: First, by pressing the extension block 311, the pull rod 308 can be driven to pull the pull rope 306 upward inside the arc groove 307 (see Figure 4) When entering point A, the upward movement of the pull rod 308 can relax the pull rope 306, and the flip rod 1 4 and the flip rod 2 5 lose the pulling force of the pull rope 306 and relax, so that the spring 304 uses its own elasticity to push the flip rod 1 4 and the flip rod 2 5 to flip and unfold to both sides through the slider 305, and drives the base shell 1 to move to the bottom of the contact network to be tested by grasping the handle 101, and pushes the base shell 1 to move upward, so that the contact network is located in the inner cavity of the flip rod 1 4 and the flip rod 2 5, above the push block 601, and then presses the extension block 311 to drive the pull rod 308 to pull the pull rope 306 to move downward inside the arc groove 307 to enter point B, and the downward movement of the pull rod 308 can drive the pull rope 306 and the forked rope 314 to move downward, and pull the flip rod 1 4 and the flip rod 2 5 to flip and close, between the two flip rods 1 4 and During the closing process of the rotating rod 2 5, the push block 601 is squeezed to make the push block 601 slide upward in the oblique groove 602 through the sliding block 603, and push the contact network to be tested to move up, until the flip rod 1 4 and the flip rod 2 5 are completely closed, and then the base shell 1 is relaxed to make the base shell 1 move downward under its own weight, and drive the current sensing contact block 6 to contact the contact network. At the same time, when the pressure sensing block 1 313 contacts the pressure sensing block 2 312, the current sensing contact block 6 is driven to detect the contact network, and the signal is amplified, filtered, etc. through the signal processing unit inside the base shell 1, so that the accurate current measurement value after processing will be displayed on the display screen 2 on one side of the base shell 1, so that the operator can intuitively obtain the current data of the contact network and complete the detection of the contact network current.

[0030] The above description is only a preferred specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present utility model according to the technical scheme and utility model concept of the present utility model, which should be covered by the protection scope of the present utility model.

Claims

1. A special electroscope for railway contact network, comprising a base shell (1), characterized in that: A display screen (2) for displaying test results is fixedly connected to one side of the base shell (1); an insulating rod (3) is fixedly connected to the top of the base shell (1); a flip rod (4) is rotatably connected to the top of the insulating rod (3); a current sensing contact block (6) for testing the contact network is fixedly connected to the top of the inner cavity of the flip rod (4); the current sensing contact block (6) measures the current value in the contact network after contacting the contact network; a flip rod (5) is rotatably connected to one side of the flip rod (4); and the current sensing contact block (6) is fixed to the top of the contact network through the cooperation of the flip rod (4) and the flip rod (5).

2. A railway contact network dedicated electroscope according to claim 1, characterized in that: A clamping block (301) is fixedly connected to the top of the insulating rod (3); a fixed shaft (302) for providing rotation of the first flip rod (4) and the second flip rod (5) is fixedly connected to the inner cavity of the clamping block (301); a semi-annular groove (303) is provided in the inner cavity of the clamping block (301); springs (304) for pushing the first flip rod (4) and the second flip rod (5) to flip to both sides are fixedly connected to the inner cavity of the semi-annular groove (303).

3. A railway contact network dedicated electroscope according to claim 2, characterized in that: A pull rope (306) for pulling the first flip rod (4) and the second flip rod (5) to flip is slidably connected to the inner cavity of the insulating rod (3), and the first flip rod (4) and the second flip rod (5) are pulled closed by tightening the pull rope (306), and the top of the pull rope (306) is fixedly connected to the bottom of the first flip rod (4) and the bottom of the second flip rod (5).

4. A railway contact network dedicated electroscope according to claim 3, characterized in that: The inner cavity of the base shell (1) is provided with an arc-shaped groove (307) for tightening the pull rope (306), the inner cavity of the arc-shaped groove (307) is slidably connected to a pull rod (308) for moving the pull rope (306), and the outer wall of the pull rod (308) is fixedly connected to an extension block (311) for sliding the pull rod (308).

5. The railway contact network dedicated electroscope according to claim 1, characterized in that: The inner cavities of the flip rod 1 (4) and the flip rod 2 (5) are both slidably connected with a push block (601) for contacting the contact network close to the current sensing contact block (6), and the inner cavities of the flip rod 1 (4) and the flip rod 2 (5) are both provided with an oblique groove (602) for squeezing the push block (601) to slide upward.

6. A railway contact network dedicated electroscope according to claim 1, characterized in that: The outer wall of the base shell (1) is fixedly connected with a handle (101), and two handles (101) are provided in total, and the two handles (101) are respectively fixedly connected to two ends of the outer wall of the base shell (1).

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