Alternating-current and direct-current resistance-capacitance voltage divider

Abstract

The utility model relates to an AC / DC resistance-capacitance voltage divider, comprising a voltage divider main body which comprises a pedestal, an insulating cylinder and a grading ring; the shifting wheel comprises an eccentric roller, a transmission part and a linkage part; the internal thread sleeve is arranged on the opposite side of the bearing plate; the shifting handle is in threaded connection with the internal thread sleeve; the movable frame is arranged outside the threaded vertical rod in a sleeving manner; the universal wheels are arranged at the bottom ends of the threaded vertical rods; and the reset spring is arranged between the movable frame and the connecting piece. By arranging the rubber gasket and the groove, the friction force between the movable frame and the bottom surface is increased, the device can be adsorbed on a smooth floor when used on the smooth floor due to the arrangement of the groove, a heavy block can be placed in the movable frame due to the arrangement of the placing groove, and the heavy block can be placed in the movable frame. And therefore, the gravity center of the voltage divider can be reduced, and the placement stability can be effectively improved in actual use.

Description

Technical Field

[0001] The utility model relates to a resistor-capacitor voltage divider, in particular to an AC / DC resistor-capacitor voltage divider. Background Art

[0002] A resistor-capacitor voltage divider is a voltage divider composed of resistors and capacitors. Both resistor and capacitor voltage dividers are affected by stray capacitance to the ground, which causes measurement errors. A resistor-capacitor voltage divider can reduce the influence of stray capacitance to the ground, making the measurement results more accurate.

[0003] Common RC voltage dividers are generally composed of a base, an insulating tube, and a voltage-equalizing ring. Some larger voltage dividers have higher insulating tubes, which makes the voltage divider higher as a whole, resulting in a higher center of gravity for the voltage divider. A higher center of gravity can easily cause the voltage divider to topple over during use. Therefore, an AC / DC RC voltage divider is proposed to solve the above-mentioned problem. Utility Model Content

[0004] Based on the above description, the utility model provides an AC / DC RC voltage divider to solve the problem that a high voltage divider is prone to tipping over.

[0005] The utility model provides a technical solution to the above technical problems as follows: an AC / DC RC voltage divider, comprising: a voltage divider body, the voltage divider body comprising a base, an insulating tube and a voltage equalizing ring, the base comprising a base body, a threaded vertical rod and a bearing plate, a toggle wheel is arranged between the bearing plates, and comprises an eccentric roller, a transmission member and a linkage member, an internally threaded sleeve is arranged on the opposite side of the bearing plate, the toggle handle is threadedly connected to the internally threaded sleeve and is sleeved to the outside of the linkage member, a movable frame is sleeved to the outside of the threaded vertical rod, a universal wheel is arranged on the bottom end of the threaded vertical rod through a connecting plate, a screw and a nut, and a reset spring is arranged between the movable frame and the connecting plate.

[0006] On the basis of the above technical solution, the present invention can also be improved as follows.

[0007] Furthermore, a threaded vertical rod and a bearing plate are provided at the bottom end of the base body, the bearing plate is provided between the threaded vertical rods on both sides, and transmission parts and linkage parts are provided inside the bearing plates on both sides respectively through bearings.

[0008] Furthermore, the transmission member includes a conventional tube, and a first prism groove is provided on a side of the conventional tube close to the linkage member.

[0009] Furthermore, the linkage member includes a linkage cylinder, which is arranged inside the bearing plate through a bearing, and a second prism groove is arranged on a side of the linkage cylinder close to the transmission member.

[0010] Furthermore, a linkage prism is provided on a side of the linkage cylinder away from the transmission member, and the linkage prism extends to the interior of the internal threaded sleeve.

[0011] Furthermore, the eccentric roller includes an eccentric wheel, which is arranged between the transmission member and the linkage member. Connecting members are arranged at both ends of the eccentric wheel, and the two connecting members extend to the inside of the first prism groove and the second prism groove respectively.

[0012] Furthermore, the toggle handle includes a toggle plate, and a threaded column is provided on one side of the toggle plate close to the internal threaded sleeve, and the threaded column is threadedly connected to the internal threaded sleeve.

[0013] Furthermore, a third prism groove is provided on a side of the threaded column close to the linkage member, the linkage prism extends to the inside of the third prism groove, and a movable handle is provided on a side of the toggle plate away from the linkage member.

[0014] Furthermore, the movable frame includes a frame body, a guide hole is provided on the upper surface of the frame body, the threaded vertical rod passes through the guide hole, a placement groove is provided on the outer surface of the frame body, a rubber gasket is provided at the bottom end of the frame body, and a groove is provided at the bottom end of the rubber gasket.

[0015] Furthermore, the connecting piece is arranged on the outside of the threaded vertical rod through a nut, and the universal wheel is arranged on the bottom end of the connecting piece through a screw and a nut.

[0016] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0017] 1. The utility model is provided with components such as a toggle handle, a movable frame, a toggle wheel and a reset spring. Through the cooperation between the toggle handle and the toggle wheel, when the toggle handle is rotated, the toggle wheel can be driven to rotate. At this time, the movable frame moves downward under the pressure of the deflection roller, so that the movable frame contacts the bottom surface, so that the universal wheel is separated from the ground;

[0018] 2. By setting the rubber gasket and the groove, the friction between the movable frame and the bottom surface is increased, and the setting of the groove enables the device to be adsorbed on the floor when used on a relatively smooth floor. By setting the placement groove, a heavy block can be placed inside the movable frame, thereby achieving the effect of lowering the center of gravity of the voltage divider, and can effectively increase the placement stability in actual use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the structure of an AC / DC resistor-capacitor voltage divider provided in an embodiment of the utility model;

[0020] Figure 2 for Figure 1 A structural diagram from another perspective;

[0021] Figure 3 for Figure 1 Schematic diagram of the explosion structure;

[0022] Figure 4 This is a schematic diagram of the structure of the base in the embodiment of the utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the eccentric roller in the embodiment of the utility model;

[0024] Figure 6 This is a schematic diagram of the structure of the transmission member in the embodiment of the utility model;

[0025] Figure 7 It is a structural schematic diagram of the linkage member in the embodiment of the utility model;

[0026] Figure 8 This is a structural schematic diagram of a toggle handle in an embodiment of the utility model;

[0027] Fig. 9 This is a schematic diagram of the structure of the movable frame in the embodiment of the utility model;

[0028] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0029] 1. Base; 101. Base body; 102. Threaded vertical rod; 103. Bearing plate; 2. Insulating cylinder; 3. Equalizing ring; 4. Eccentric roller; 41. Eccentric wheel; 42. Connecting piece; 5. Transmission piece; 51. Conventional cylinder; 52. First prism groove; 6. Linkage piece; 61. Linkage cylinder; 62. Linkage prism; 63. Second prism groove; 7. Toggle handle; 71. Toggle plate; 72. Movable handle; 73. Threaded column; 74. Third prism groove; 8. Internally threaded sleeve; 9. Movable frame; 91. Frame body; 92. Guide hole; 93. Placement groove; 94. Rubber gasket; 95. Groove; 10. Reset spring; 11. Connecting piece; 12. Universal wheel. DETAILED DESCRIPTION

[0030] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0032] When used herein, the singular forms "a", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" etc. specify the presence of stated features, wholes, steps, operations, components, parts or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof.

[0033] See also Figure 1-Figure 4 , an AC / DC resistor-capacitor voltage divider, comprising:

[0034] The voltage divider body includes a base 1, an insulating tube 2 and a voltage grading ring 3, wherein:

[0035] The base 1 comprises a base body 101, a threaded vertical rod 102 and a bearing plate 103. The bottom end of the base body 101 is provided with a threaded vertical rod 102 and a bearing plate 103. The bearing plate 103 is provided between the threaded vertical rods 102 on both sides. The bearing plates 103 on both sides are provided with a transmission member 5 and a linkage member 6 through bearings.

[0036] Based on the above, the base 1, the insulating tube 2 and the equalizing ring 3 are all existing technologies. The base 1 can be connected to other components of the voltage divider high-voltage test system by signals, and the bearing plate 103 is connected to the transmission member 5 and the linkage member 6 through the bearing, so that the transmission member 5 and the linkage member 6 can rotate. The threaded vertical rod 102 cooperates with the movable frame 9 on the one hand, so that the movable frame 9 can only move vertically. On the other hand, it is connected to the connecting plate 11 through the nut, so that the universal wheel 12 can be connected to the threaded vertical rod 102 through the connecting plate 11.

[0037] like Figure 1-Figure 3 , Figure 5-Figure 8 As shown, the toggle wheel is arranged between the bearing plates 103 and includes an eccentric roller 4, a transmission member 5 and a linkage member 6;

[0038] The eccentric roller 4 includes an eccentric wheel 41, which is disposed between the transmission member 5 and the linkage member 6. Both ends of the eccentric wheel 41 are provided with connecting members 42, and the two connecting members 42 extend to the inside of the first prism groove 52 and the second prism groove 63 respectively.

[0039] The transmission member 5 comprises a conventional cylinder 51, and a first prism groove 52 is provided on one side of the conventional cylinder 51 close to the linkage member 6;

[0040] The linkage member 6 includes a linkage cylinder 61, which is disposed inside the bearing plate 103 through a bearing, a second prism groove 63 is disposed on a side of the linkage cylinder 61 close to the transmission member 5, and a linkage prism 62 is disposed on a side of the linkage cylinder 61 away from the transmission member 5, and the linkage prism 62 extends to the inside of the internal threaded sleeve 8;

[0041] An internal threaded sleeve 8, which is arranged on the opposite side of the bearing plate 103;

[0042] A toggle handle 7, which is threadedly connected to the internal threaded sleeve 8 and sleeved to the outside of the linkage member 6, the toggle handle 7 includes a toggle plate 71, a threaded column 73 is provided on the side of the toggle plate 71 close to the internal threaded sleeve 8, the threaded column 73 is threadedly connected to the internal threaded sleeve 8, a third prism groove 74 is provided on the side of the threaded column 73 close to the linkage member 6, the linkage prism 62 extends to the inside of the third prism groove 74, and a movable handle 72 is provided on the side of the toggle plate 71 away from the linkage member 6;

[0043] Based on the above, the toggle handle 7 and the internal threaded sleeve 8 cooperate with each other. When the toggle handle 7 is rotated, it can drive the linkage member 6 to rotate together. The linkage member 6 drives the eccentric roller 4 and the transmission member 5 to rotate. When the toggle handle 7 is rotated, it is more tightly connected with the internal threaded sleeve 8, so that the eccentric roller 4 can remain relatively fixed after rotating ninety degrees. The state of the eccentric roller 4 is fixed by the threaded connection. After the eccentric roller 4 rotates, it can push the movable frame 9 to move forward, thereby separating the universal wheel 12 from the ground.

[0044] like Figure 1-Figure 3 as well as Fig. 9 As shown, the movable frame 9 is sleeved on the outside of the threaded vertical rod 102, and the movable frame 9 includes a frame body 91, the upper surface of the frame body 91 is provided with a guide hole 92, the threaded vertical rod 102 passes through the guide hole 92, the outer surface of the frame body 91 is provided with a placement groove 93, the bottom end of the frame body 91 is provided with a rubber gasket 94, and the bottom end of the rubber gasket 94 is provided with a groove 95;

[0045] The universal wheel 12 is arranged at the bottom end of the threaded vertical rod 102 through a connecting piece 11, a screw and a nut. The connecting piece 11 is arranged outside the threaded vertical rod 102 through a nut. The universal wheel 12 is arranged at the bottom end of the connecting piece 11 through a screw and a nut.

[0046] A return spring 10, which is arranged between the movable frame 9 and the connecting piece 11;

[0047] Based on the above, the guide hole 92 cooperates with the threaded vertical rod 102 so that the movable frame 9 can only move vertically, and the placement groove 93 is set so that the movable frame 9 can place objects after it moves vertically and contacts the ground, so as to increase the weight of the bottom of the voltage divider, thereby achieving the effect of lowering the overall center of gravity. If the voltage divider is used on a smooth floor, the air inside the groove 95 is squeezed out after the movable frame 9 is tightly fitted to the ground. At this time, the rubber gasket 94 and the groove 95 act as a suction cup together, so that the voltage divider is adsorbed on the floor to increase the stability of the voltage divider when it is placed. When the movable frame 9 is not moved down, the universal wheel 12 facilitates the movement of the voltage divider.

[0048] In actual use of this embodiment, the movable frame 9 is kept in contact with the lower surface of the base 1 under the action of the upward elastic force of the return spring 10, that is, Figure 1 In the state in which the universal wheel 12 is in contact with the ground, the voltage divider can be directly moved;

[0049] When the toggle handle 7 is moved to a predetermined position, the toggle handle 7 is rotated to move along the direction of the internal threaded sleeve 8. On the one hand, the toggle handle 7 drives the toggle wheel to rotate after the toggle handle 7 is rotated. On the other hand, the toggle handle 7 is in a threaded connection with the threaded sleeve 8 after the toggle handle 7 is rotated, so that the toggle wheel is fixed in position by the toggle handle 7, that is, fixed by the thread.

[0050] After the toggle wheel rotates, the movable frame 9 is pressed to move downward, and the movable frame 9 contacts the ground after moving downward, so that the universal wheel 12 is separated from the ground. At this time, the movable frame 9 and the toggle wheel support the voltage divider, so that the stability of the voltage divider is increased, and the voltage divider retains the ability to be easily moved;

[0051] When the movable frame 9 contacts the ground, the rubber gasket 94 and the groove 95 cooperate with each other, so that the friction between the movable frame 9 and the ground is relatively large. When the experiment is carried out indoors, since the floor is usually made of ceramic tiles, when the movable frame 9 is closely attached to the ground, the air inside the groove 95 is squeezed out. At this time, the rubber gasket 94 and the groove 95 act as suction cups and are adsorbed on the floor surface, further increasing the stability of the placement of the voltage divider.

[0052] By providing the placement slot 93, after the voltage divider is fixed, objects or heavy objects can be placed inside the placement slot 93 to lower the center of gravity of the voltage divider, thereby increasing the stability of the voltage divider when placed;

[0053] Compared with the traditional voltage divider, this voltage divider has two forms. One is the state in which the universal wheel 12 is in contact with the ground, and the voltage divider is easy to move. The other is the state in which the movable frame 9 is in contact with the ground. At this time, the voltage divider has better stability when placed. If it is placed in a room with a relatively smooth floor, the stability is even better. In addition, heavy objects can be placed in the placement groove 93 to increase stability, thereby preventing the voltage divider from tipping over.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An AC / DC resistor-capacitor voltage divider, characterized in that: include: The voltage divider body comprises a base (1), an insulating cylinder (2) and a voltage grading ring (3), wherein: A base (1) comprising a base body (101), a threaded vertical rod (102) and a bearing plate (103); A toggle wheel, which is arranged between the bearing plates (103) and comprises an eccentric roller (4), a transmission member (5) and a linkage member (6); An internal threaded sleeve (8) disposed on the opposite side of the bearing plate (103); A toggle handle (7) which is threadedly connected to the internal thread sleeve (8) and sleeved onto the outside of the linkage member (6); A movable frame (9) sleeved onto the outside of the threaded vertical rod (102); A universal wheel (12), which is arranged at the bottom end of the threaded vertical rod (102) through a connecting piece (11), a screw and a nut; A return spring (10) is arranged between the movable frame (9) and the connecting piece (11).

2. The AC / DC resistor-capacitor voltage divider according to claim 1, characterized in that: A threaded vertical rod (102) and a bearing plate (103) are provided at the bottom end of the base body (101); the bearing plate (103) is provided between the threaded vertical rods (102) on both sides; and a transmission member (5) and a linkage member (6) are provided inside the bearing plates (103) on both sides through bearings.

3. The AC / DC resistor-capacitor voltage divider according to claim 1, characterized in that: The transmission member (5) comprises a conventional cylinder (51), and a first prism groove (52) is provided on a side of the conventional cylinder (51) close to the linkage member (6).

4. The AC / DC resistor-capacitor voltage divider according to claim 3, characterized in that: The linkage member (6) comprises a linkage cylinder (61), wherein the linkage cylinder (61) is arranged inside the bearing plate (103) via a bearing, and a second prism groove (63) is arranged on a side of the linkage cylinder (61) close to the transmission member (5).

5. The AC / DC resistor-capacitor voltage divider according to claim 4, characterized in that: A linkage prism (62) is provided on the side of the linkage cylinder (61) away from the transmission member (5), and the linkage prism (62) extends to the interior of the internal threaded sleeve (8).

6. The AC / DC resistor-capacitor voltage divider according to claim 4, characterized in that: The eccentric roller (4) comprises an eccentric wheel (41), wherein the eccentric wheel (41) is arranged between the transmission member (5) and the linkage member (6), and connecting members (42) are arranged at both ends of the eccentric wheel (41), and the two connecting members (42) extend to the inside of the first prism groove (52) and the second prism groove (63) respectively.

7. The AC / DC resistor-capacitor voltage divider according to claim 5, characterized in that: The toggle handle (7) comprises a toggle plate (71), a threaded column (73) is provided on one side of the toggle plate (71) close to the internally threaded sleeve (8), and the threaded column (73) is threadedly connected to the internally threaded sleeve (8).

8. The AC / DC resistor-capacitor voltage divider according to claim 7, characterized in that: A third prism groove (74) is provided on a side of the threaded column (73) close to the linkage member (6), the linkage prism (62) extends into the interior of the third prism groove (74), and a movable handle (72) is provided on a side of the toggle plate (71) away from the linkage member (6).

9. The AC / DC resistor-capacitor voltage divider according to claim 1, characterized in that: The movable frame (9) comprises a frame body (91), the upper surface of the frame body (91) is provided with a guide hole (92), the threaded vertical rod (102) passes through the guide hole (92), the outer surface of the frame body (91) is provided with a placement groove (93), the bottom end of the frame body (91) is provided with a rubber gasket (94), and the bottom end of the rubber gasket (94) is provided with a groove (95).

10. The AC / DC resistor-capacitor voltage divider according to claim 9, characterized in that: The connecting piece (11) is arranged on the outside of the threaded vertical rod (102) via a nut, and the universal wheel (12) is arranged on the bottom end of the connecting piece (11) via a screw and a nut.

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