Adjustable phase sequence meter hand supporting device
By designing an adjustable phase sequence meter needle support device, the problems of traditional phase sequence meters requiring two-hand operation and adapting to different three-phase terminal spacings are solved, enabling single-hand operation and fine-tuning, thus improving the efficiency and safety of power system maintenance.
Patent Information
- Application Number
- CN202520186832.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-06
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-02-06
AI Technical Summary
Traditional low-voltage phase sequence meters require two hands to operate, which is inconvenient in confined spaces. The different spacing between the three-phase terminals makes operation difficult, and holding them for a long time causes fatigue and affects work efficiency.
An adjustable phase sequence meter needle support device is designed, which adopts a probe support arm, a limiting block, a clamping mechanism and a sector gear structure to realize single-hand operation and the spacing adjustment of adjacent phase sequence meter needles, adapt to different three-phase terminal spacings, and support fine adjustment within a range of 30°.
It improves the ease and safety of operation, is suitable for different equipment, reduces operator fatigue, and improves work efficiency.
Smart Images
Figure CN223857255U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to power detection tool technical field, concretely is a adjustable phase sequence table needle support device. BACKGROUND
[0002] At present, in the power system operation maintenance work, phase sequence detection is a common and important work, and the traditional low voltage phase sequence table is usually composed of three detection heads, and the operator needs to hold three detection heads to contact three phase terminals at the same time to complete the measurement, and this design has the following problems:
[0003] 1. Both hands need to operate at the same time, and one hand is difficult to complete the measurement;
[0004] 2. It is inconvenient to operate in the narrow space of the power distribution cabinet;
[0005] 3. The three-phase terminal spacing of different equipment is different, and the operation is difficult;
[0006] 4. Long time holding can easily cause fatigue, and affect the work efficiency. INVENTION CONTENTS
[0007] The utility model aims at providing a adjustable phase sequence table needle support device to solve the problems in the above background.
[0008] In order to achieve the above object, the utility model provides the following technical scheme:
[0009] A adjustable phase sequence table needle support device, including detection head support arm, the lower surface of detection head support arm is fixedly connected with handle, and the inside of detection head support arm is provided with support hole, the inside of support hole is fixedly connected with mouth type datum track, three sliding blocks are movably connected in the inside of mouth type datum track from left to right, first limit block and second limit block are installed on the front and back of sliding block respectively, the inside of second limit block is movably penetrated and connected with limit pin, the front surface of first limit block is provided with clamping mechanism.
[0010] As a further scheme of the utility model: the clamping mechanism includes connecting rod, the front end of connecting rod is fixedly connected with connecting block, the front surface of connecting block is fixedly connected with two clamping blocks symmetrically, the outside of connecting rod is fixedly connected with sector gear, the clamping mechanism further includes the positioning member below connecting rod.
[0011] As a further scheme of the utility model: the positioning member includes positioning seat, the lower end of positioning seat is fixedly connected with positioning plate, and the inside lower surface of positioning seat is fixedly connected with spring, the upper end of spring is fixedly connected with positioning rod, the upper end of positioning rod is fixedly connected with hemisphere.
[0012] As a further scheme of the utility model: the first limiting block is attached to the front surface of the mouth shape datum track, the second limiting block is attached to the rear surface of the mouth shape datum track, the limiting bolt is movably penetrated through the sliding block, and the front end of the limiting bolt is screw connected to the rear surface of the first limiting block.
[0013] As a further scheme of the utility model: the rear end of the connecting rod is rotationally connected to the front surface of the first limiting block.
[0014] As a further scheme of the utility model: the rear end of the positioning plate is fixedly connected to the front surface of the first limiting block, and the positioning rod is slidingly connected to the inside of the positioning seat.
[0015] Compared with the prior art, the utility model has the beneficial effects that:
[0016] The three clamping structures can clamp three phase sequence hands simultaneously, one hand can operate when measuring the phase sequence of equipment, work efficiency is improved, and operation is safe and reliable, the whole device structure is simple, and is convenient to carry and store.
[0017] The first limiting block and the second limiting block clamp the mouth shape datum track by screwing the limiting bolt, the sliding block can be fixed, the sliding block can be moved to adjust the interval of two adjacent sliding blocks after unscrewing the limiting bolt, the interval of two adjacent phase sequence hands is adjusted, and the utility model is suitable for three-phase terminals with different intervals.
[0018] The cooperation of the sector gear and the positioning piece allows the phase sequence hand to be adjusted in a range of 30 DEG, and the interval of two adjacent phase sequence hands can be finely adjusted. BRIEF DESCRIPTION OF DRAWINGS
[0019] Fig. 1 It is a structural schematic view of an adjustable phase sequence hand supporting device.
[0020] Fig. 2 It is a partial schematic view of an adjustable phase sequence hand supporting device.
[0021] Fig. 3 It is a partial exploded view of Fig. 2 .
[0022] Fig. 4 It is a structural schematic view of a clamping mechanism in an adjustable phase sequence hand supporting device.
[0023] Fig. 5 It is a structural schematic view of a connecting rod in an adjustable phase sequence hand supporting device.
[0024] Fig. 6 It is a sectional view of a positioning piece in an adjustable phase sequence hand supporting device.
[0025] In the figure: 1, probe head support arm; 2, handle; 3, support hole; 4, mouth type reference track; 5, sliding block; 6, first limit block; 7, second limit block; 8, limit pin; 9, clamping mechanism; 10, connecting rod; 11, connecting block; 12, clamping block; 13, sector gear; 14, positioning member; 15, positioning seat; 16, positioning plate; 17, spring; 18, positioning rod; 19, hemisphere. DETAILED DESCRIPTION
[0026] Please refer to Figs. 1-6 In the embodiment of the utility model, a kind of adjustable phase sequence pointer support device, handle 2 is fixedly connected on the lower surface of probe head support arm 1, and support hole 3 is set in the inside of probe head support arm 1, mouth type reference track 4 is fixedly connected in the inside of support hole 3, three sliding blocks 5 are movably connected from left to right in the inside of mouth type reference track 4, first limit block 6 and second limit block 7 are respectively installed on the front and back of sliding block 5, first limit block 6 is attached to the front surface of mouth type reference track 4, second limit block 7 is attached to the rear surface of mouth type reference track 4, limit pin 8 is movably penetrated and connected in the inside of second limit block 7, limit pin 8 is movably penetrated sliding block 5, and the front end of limit pin 8 is screw-connected to the rear surface of first limit block 6;
[0027] The length of handle 2 is 120mm, the diameter of upper part is 20mm, and the diameter of lower part is 35mm;
[0028] The total length of mouth type reference track 4 in left-right direction is 300mm, and the adjustment range of 80-250mm can be realized;
[0029] The thickness of mouth type reference track 4 in front-rear direction is less than the thickness of support hole 3 in front-rear direction;
[0030] The thickness of sliding block 5 in front-rear direction is less than the thickness of mouth type reference track 4 in front-rear direction, so that first limit block 6 and second limit block 7 can be tightly attached to mouth type reference track 4 after limit pin 8 is screwed, to fix the position of sliding block 5;
[0031] The front surface of the first limiting block 6 is provided with a clamping mechanism 9, the clamping mechanism 9 comprises a connecting rod 10, the rear end of the connecting rod 10 is rotationally connected to the front surface of the first limiting block 6, the front end of the connecting rod 10 is fixedly connected with a connecting block 11, the front surface of the connecting block 11 is symmetrically fixedly connected with two clamping blocks 12, the outside of the connecting rod 10 is fixedly connected with a sector gear 13, the clamping mechanism 9 further comprises a positioning piece 14 located below the connecting rod 10, the positioning piece 14 comprises a positioning seat 15, the lower end of the positioning seat 15 is fixedly connected with a positioning plate 16, the rear end of the positioning plate 16 is fixedly connected to the front surface of the first limiting block 6, the inner lower surface of the positioning seat 15 is fixedly connected with a spring 17, the upper end of the spring 17 is fixedly connected with a positioning rod 18, the positioning rod 18 is slidingly connected to the inside of the positioning seat 15, and the upper end of the positioning rod 18 is fixedly connected with a hemispherical body 19;
[0032] The clamping blocks 12 are preferably members made of elastic materials, such as rubber, for clamping the phase sequence hands;
[0033] The hemispherical body 19 is located between the two adjacent teeth of the sector gear 13, and is used for fixing the sector gear 13, so as to fix the connecting rod 10;
[0034] The connecting rod 10 is rotated by rotating the connecting block 11, and the teeth of the sector gear 13 press the hemispherical body 19 downward to generate rotation; the connecting block 11 can be rotated within the range of -15° to 15° through the sector gear 13, that is, the phase sequence hands can be rotated within the range of 30°, so that the interval between the adjacent two phase sequence hands can be finely adjusted; although the phase sequence hands are inclined, the hands are long enough, and the three hands can be overlapped on the three phases at the same time;
[0035] The spring 17 has sufficient elastic force, so that the sector gear 13 cannot overcome the elastic force of the spring 17 to generate rotation in a normal state, and needs to be rotated by hand.
[0036] The working principle of the utility model is as follows: in use, the staff first loosens the limiting bolt 8, then moves the sliding blocks 5 left and right to adjust the interval between the adjacent two sliding blocks 5, so that the interval between the adjacent two sliding blocks 5 is equal to the distance between the adjacent two phase sequence points, after adjustment, the limiting bolt 8 is tightened; then, the two clamping blocks 12 are pulled apart, the phase sequence hands are placed between the two clamping blocks 12 for fixation, and then the three hands are overlapped on the three phases of the equipment for measurement by holding the handle 2; if the interval between the adjacent two hands is slightly large or small, the connecting block 11 can be directly rotated to drive the hands to rotate, so that the adjustment is rapid.
[0037] The above merely describes a preferred embodiment of the present application, but the protection scope of the present application is not limited to this, and any person skilled in the art, according to the technical scheme and the inventive concept of the present application, can make equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.
[0038] In the description of the present application, it should be explained that, unless explicitly defined and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
Claims
1. An adjustable phase sequence hand support device, characterized by, The utility model provides a kind of mouth shape standard track, including probe head support arm (1), the lower surface of probe head support arm (1) is fixed with handle (2), and the inside of probe head support arm (1) is provided with support hole (3), the inside of support hole (3) is fixed with mouth shape standard track (4), the inside of mouth shape standard track (4) is movably connected with three sliders (5) from left to right, the front and rear sides of slider (5) are respectively equipped with first limit block (6) and second limit block (7), the inside of second limit block (7) is movably penetrated and connected with limit pin (8), the front surface of first limit block (6) is provided with clamping mechanism (9).
2. An adjustable phase sequence hand support device according to claim 1, characterized in that The clamping mechanism (9) includes a connecting rod (10), the front end of the connecting rod (10) is fixed with a connecting block (11), the front surface of the connecting block (11) is fixed with two clamping blocks (12) symmetrically, the outer part of the connecting rod (10) is fixed with a sector gear (13), and the clamping mechanism (9) further includes a positioning member (14) below the connecting rod (10).
3. An adjustable phase sequence hand support device according to claim 2, characterized in that The positioning member (14) includes a positioning seat (15), the lower end of the positioning seat (15) is fixed with a positioning plate (16), the inner lower surface of the positioning seat (15) is fixed with a spring (17), the upper end of the spring (17) is fixed with a positioning rod (18), and the upper end of the positioning rod (18) is fixed with a hemisphere (19).
4. The adjustable phase sequence pointer support device of claim 1, wherein, The first limit block (6) is attached to the front surface of the mouth shape standard track (4), the second limit block (7) is attached to the rear surface of the mouth shape standard track (4), the limit pin (8) is movably penetrated through the slider (5), and the front end of the limit pin (8) is threadedly connected to the rear surface of the first limit block (6).
5. The adjustable phase sequence pointer support device of claim 2, wherein, The rear end of the connecting rod (10) is rotatably connected to the front surface of the first limit block (6).
6. The adjustable phase sequence pointer support device of claim 3, wherein, The rear end of the positioning plate (16) is fixed to the front surface of the first limit block (6), and the positioning rod (18) is slidingly connected to the inside of the positioning seat (15).