Sampling device for current detection

Abstract

The utility model relates to the technical field of current detection, in particular to a sampling device for current detection, which comprises a telescopic tube, a transmission mechanism, a detection mechanism and a rotating handle, a rotating unit is arranged between the transmission mechanism and the detection mechanism, one end of the telescopic tube is connected with the transmission mechanism, and the other end of the telescopic tube is axially and rotatably connected with the rotating handle. A telescopic rod is axially and rotatably arranged in the telescopic pipe, the telescopic rod and the telescopic pipe synchronously stretch out and draw back, one end of the telescopic rod is connected with the rotating handle, and the other end of the telescopic rod is connected with a transmission mechanism so as to drive a detection mechanism to rotate through the transmission mechanism. The telescopic pipe is matched with the telescopic rod to achieve telescopic extension, meanwhile, the included angle between the detection mechanism and the telescopic pipe is adjusted through the transmission mechanism, rapid adjustment of the detection mechanism is achieved, and climbing detection can be conducted.

Description

Technical Field

[0001] The utility model relates to the technical field of current detection, in particular to a sampling device for current detection. Background Art

[0002] A clamp meter is a contactless voltage and current detection or sampling device, which is mainly used to test voltage, current frequency and other related parameters. Currently, most clamp meters are handheld and can control the opening and closing of the two clamp heads by pressing the trigger. When in use, you only need to put the clamp heads on the line to be measured. The operation is simple and convenient. However, when the cable is installed at a high position, it is necessary to use equipment such as ladders to assist in climbing up for testing. It is also inconvenient to operate when testing cables in a small space. When there are many cables to be tested, the angle of the clamp meter needs to be constantly adjusted, which makes the operation cumbersome. Utility Model Content

[0003] The utility model aims to solve the above-mentioned defects and provides a sampling device for current detection.

[0004] In order to overcome the defects existing in the background technology, the technical solution adopted by the present invention to solve its technical problems is: a sampling device for current detection, including a telescopic tube, a transmission mechanism, a detection mechanism and a rotating handle, a rotating unit is arranged between the transmission mechanism and the detection mechanism, one end of the telescopic tube is connected to the transmission mechanism, and the other end is axially rotated to be connected to the rotating handle, a telescopic rod is axially rotated in the telescopic tube, and the telescopic rod and the telescopic tube are synchronously extended and retracted, one end of the telescopic rod is connected to the rotating handle, and the other end of the telescopic rod is connected to the transmission mechanism to drive the detection mechanism to rotate through the transmission mechanism.

[0005] A further improvement includes connecting the end of the telescopic rod to a fixing plate provided in the rotating handle.

[0006] A further improvement includes the telescopic rod being rotatably disposed in the telescopic tube via a bearing.

[0007] Further improvements include the detection mechanism comprising a U-shaped ferrule and a clamp meter loaded in the U-shaped ferrule, a mounting port being provided at one end of the clamp meter, a fixed clamp head being fixedly provided in the mounting port, and a movable clamp head being rotatably provided in the mounting port opposite to the fixed clamp head, and an integrally formed trigger being provided on the clamp meter and adjacent to the movable clamp head for driving the movable clamp head to rotate.

[0008] A further improvement includes a relatively threaded connection tightening bolt on the U-shaped ferrule.

[0009] A further improvement includes providing a driving mechanism on the U-shaped ferrule for driving the trigger action.

[0010] Further improvements include that the driving mechanism includes a semi-open drive shell, a movable seat and a pulley seat arranged on the movable seat, the movable seat is slidably arranged in the drive shell, the movable seat is connected to the driving wire, and the pulley on the pulley seat presses the trigger by pulling the driving wire.

[0011] A further improvement includes disposing two guide pulleys in the drive housing for relative rotation, and the drive line extends to the outside through between the guide pulleys.

[0012] A further improvement includes providing a wire winding hook on the telescopic tube.

[0013] Further improvements include that the transmission mechanism includes a transmission housing, a rotating shaft rotatably arranged in the transmission housing, and a worm sleeve, the transmission housing is provided with a turbine sleeved on the rotating shaft, the telescopic rod is inserted into the transmission housing, and the turbine is engaged with the worm sleeve sleeved on the telescopic rod, and one end of the rotating shaft extends to the outside of the transmission housing and is connected to the detection mechanism.

[0014] The beneficial effects of the present invention are as follows: the present design adopts the cooperation of the telescopic tube and the telescopic rod to realize telescopic extension, and at the same time, the angle between the detection mechanism and the telescopic tube is adjusted through the transmission mechanism, so as to realize rapid adjustment of the detection mechanism, facilitate rapid and continuous detection, be beneficial to practical application, and be able to perform high-altitude detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1 It is a right side view of the utility model;

[0017] Figure 2 It is a front view of the utility model;

[0018] Figure 3 It is a cross-sectional view of the telescopic tube in the utility model;

[0019] Figure 4 This is the main view of the detection mechanism in the utility model;

[0020] Figure 5 This is a cross-sectional view of the transmission mechanism in the utility model. Figure 1 ;

[0021] Figure 6 This is a cross-sectional view of the transmission mechanism in the utility model. Figure 2 ;

[0022] In the figure, 1-rotating handle, 2-telescopic tube, 3-tightening bolt, 4-U-shaped sleeve, 5-rotating unit, 6-transmission housing, 7-winding hook, 8-driving mechanism, 9-clamp meter, 10-movable clamp head, 11-fixed clamp head, 12-telescopic rod, 13-fixing plate, 14-bearing, 15-trigger, 16-worm gear sleeve, 17-rotating shaft, 18-turbine, 801-drive housing, 802-pulley seat, 803-moving seat, 804-guide pulley, 805-driving line. DETAILED DESCRIPTION

[0023] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of them. The embodiments of the basic utility model and all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present utility model.

[0024] according to Figure 1 、 Figure 2 and Figure 3 As shown, a sampling device for current detection includes a telescopic tube 2, a transmission mechanism, a detection mechanism and a rotating handle 1. A rotating unit 5 is provided between the transmission mechanism and the detection mechanism to enable the two to be rotationally connected. One end of the telescopic tube 2 is connected to the transmission mechanism, and the other end is axially rotated to be connected to the rotating handle 1. A telescopic rod 12 is axially rotated in the telescopic tube 2, and the telescopic rod 12 and the telescopic tube 2 are synchronously extended and retracted. One end of the telescopic rod 12 is connected to the rotating handle 1, and the other end of the telescopic rod 12 is connected to the transmission mechanism to drive the detection mechanism to rotate through the transmission mechanism, converting the rotational motion of the telescopic rod 12 into the rotational motion of the detection mechanism and thereby adjusting the angle between the detection mechanism and the telescopic tube 2. Through this design, the detection mechanism can be extended and rotated at the same time, which is convenient for practical use. Among them, the rotating unit 5 is preferably a rotating ring.

[0025] The end of the telescopic rod 12 is connected to the fixed plate 13 provided in the rotating handle 1. Rotating the rotating handle 1 can drive the telescopic rod 12 to rotate. The rotational motion of the telescopic rod 12 is converted into the rotational motion of the detection mechanism through the transmission mechanism, which is used to adjust the detection direction of the detection mechanism.

[0026] according to Figure 3 As shown, the telescopic rod 12 is rotatably disposed in the telescopic tube 2 via a bearing 14 , and the bearing 14 is preferably a sliding bearing, a needle bearing, or a ball bearing.

[0027] according to Figure 4As shown, the detection mechanism includes a U-shaped ferrule 4 and a clamp meter 9 loaded in the U-shaped ferrule 4, a mounting port is set at one end of the clamp meter 9, and a fixed clamp head 11 is fixedly set in the mounting port, and a movable clamp head 10 opposite to the fixed clamp head 11 is also rotatably set in the mounting port, and the movable clamp head 10 and the fixed clamp head 11 are used to clamp the charged body that needs to be tested for voltage or current. A trigger 15 is provided on the clamp meter 9 and adjacent to the movable clamp head 10, which is integrally formed and used to drive the movable clamp head 10 to rotate. The trigger 15 can be used to adjust the angle between the movable clamp head 10 and the fixed clamp head 11, so as to adapt to charged bodies of different sizes. The clamp meter 9 is provided with a button and a display screen, and the content displayed on the display screen can be observed.

[0028] The U-shaped ferrule 4 is threadedly connected to a tightening bolt 3 , and the tightening bolt 3 is rotated to clamp the clamp meter 9 in the U-shaped ferrule 4 .

[0029] according to Figure 4 As shown, the U-shaped ferrule 4 is provided with a driving mechanism 8 for driving the trigger 15 to move. The driving mechanism 8 includes a semi-open driving shell 801, a movable seat 803 and a pulley seat 802 arranged on the movable seat 803. The movable seat 803 is slidably arranged in the driving shell 801. The movable seat 803 is connected to a driving wire 805, and the driving wire 805 extends to the outside. By pulling the driving wire 805, the pulley on the pulley seat 802 presses the trigger 15, thereby realizing remote control of the movable pliers head 10.

[0030] Two guide pulleys 804 are provided in the driving housing 801 for relative rotation. The driving line 805 extends to the outside through between the guide pulleys 804 . The guide pulleys 804 guide the driving line 805 .

[0031] The telescopic tube 2 is provided with a winding hook 7 , which is used to reel in the driving wire 805 .

[0032] like Figure 5 and Figure 6 As shown, the transmission mechanism includes a transmission housing 6, a rotating shaft 17 rotatably arranged in the transmission housing 6, and a worm sleeve 16. The transmission housing 6 is provided with a turbine 18 sleeved on the rotating shaft 17. The telescopic rod 12 is inserted into the transmission housing 6, and the turbine 18 is engaged with the worm sleeve 16 sleeved on the telescopic rod 12, for converting the rotational motion of the worm sleeve 16 into the rotational motion of the turbine 18. One end of the rotating shaft 17 extends to the outside of the transmission housing 6 and is connected to the detection mechanism for driving the detection mechanism to rotate.

[0033] Working principle: Manually adjust the telescopic tube 2 to the required length, and turn the rotating handle 1 clockwise or counterclockwise to make the telescopic rod 12 rotate synchronously with the worm sleeve 16. Since the worm sleeve 16 is engaged with the turbine 18, the turbine 18 is driven to rotate synchronously, and the turbine 18 drives the detection mechanism to rotate through the rotating shaft 17. At the same time, the detection mechanism and the telescopic rod 12 form different angles for rapid adjustment, and continuously detect lines at different positions and angles. At the same time, by pulling the driving wire 805, the movable seat 803 and the pulley seat 802 move in the drive shell 801, and the pulley on the pulley seat 802 presses the trigger 15, and the fixed clamp head 11 and the movable clamp head 10 on the clamp meter 9 are adjusted to perform voltage or current detection on lines of different sizes. The driving wire 805 can make the telescopic tube 2 remotely control the clamp meter 9 in the extended state, and the driving wire 805 is wound around the winding hook 7 for winding.

[0034] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A sampling device for current detection, characterized in that: The invention comprises a telescopic tube (2), a transmission mechanism, a detection mechanism and a rotating handle (1); a rotating unit (5) is arranged between the transmission mechanism and the detection mechanism; one end of the telescopic tube (2) is connected to the transmission mechanism, and the other end is axially rotated and connected to the rotating handle (1); a telescopic rod (12) is axially rotated and arranged in the telescopic tube (2); the telescopic rod (12) and the telescopic tube (2) are synchronously telescoped; one end of the telescopic rod (12) is connected to the rotating handle (1), and the other end of the telescopic rod (12) is connected to the transmission mechanism to drive the detection mechanism to rotate through the transmission mechanism.

2. The sampling device for current detection according to claim 1, characterized in that: The end of the telescopic rod (12) is connected to a fixing plate (13) provided in the rotating handle (1).

3. The sampling device for current detection according to claim 1, wherein: The telescopic rod (12) is rotatably arranged in the telescopic tube (2) via a bearing (14).

4. The sampling device for current detection according to claim 1, wherein: The detection mechanism comprises a U-shaped ferrule (4) and a clamp meter (9) loaded in the U-shaped ferrule (4); a mounting port is provided at one end of the clamp meter (9); a fixed clamp head (11) is fixedly provided in the mounting port; and a movable clamp head (10) is rotatably provided in the mounting port and is opposite to the fixed clamp head (11); a trigger (15) is provided on the clamp meter (9) and adjacent to the movable clamp head (10) and is integrally formed and used to drive the movable clamp head (10) to rotate.

5. The sampling device for current detection according to claim 4, characterized in that: The U-shaped ferrule (4) is relatively threadedly connected to the tightening bolt (3).

6. The sampling device for current detection according to claim 4, characterized in that: The U-shaped ferrule (4) is provided with a driving mechanism (8) for driving the trigger (15) to move.

7. The sampling device for current detection according to claim 6, characterized in that: The driving mechanism (8) comprises a semi-open driving housing (801), a movable seat (803), and a pulley seat (802) arranged on the movable seat (803); the movable seat (803) is slidably arranged in the driving housing (801); a driving wire (805) is connected to the movable seat (803); and the pulley on the pulley seat (802) presses the trigger (15) by pulling the driving wire (805).

8. The sampling device for current detection according to claim 7, characterized in that: Two guide pulleys (804) are arranged in the driving housing (801) for relative rotation, and the driving line (805) extends to the outside through between the guide pulleys (804).

9. The sampling device for current detection according to claim 7, characterized in that: A wire winding hook (7) is provided on the telescopic tube (2).

10. The sampling device for current detection according to claim 1, characterized in that: The transmission mechanism comprises a transmission housing (6), a rotating shaft (17) rotatably arranged in the transmission housing (6), and a worm gear sleeve (16); a turbine (18) sleeved on the rotating shaft (17) is provided in the transmission housing (6); the telescopic rod (12) is inserted into the transmission housing (6), and the turbine (18) is engaged with the worm gear sleeve (16) sleeved on the telescopic rod (12); one end of the rotating shaft (17) extends to the outside of the transmission housing (6) and is connected to the detection mechanism.

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