Electrical clearance and creepage distance measuring device

Abstract

The utility model discloses an electrical clearance and creepage distance measuring device, and particularly relates to the technical field of electrical clearance and creepage distance measurement, the electrical clearance and creepage distance measuring device comprises a device body, a measuring mechanism and a turnover mechanism, the measuring mechanism comprises a traction spring, the traction spring is arranged at one end of the inner wall of the device body, and one end of the traction spring is provided with a movable plate; a pointer is installed on one side of the bottom of the movable plate, a fastening pin is arranged between the top of the movable plate and the device body, the turnover mechanism comprises a fixing base, a movable ratchet wheel connected with the device body is arranged on the inner wall of the fixing base, and a handle is installed on the top of the fixing base. According to the utility model, the distance between the movable plate and the fixed plate can be adjusted through the movement of the movable plate, so that the pointer moves along the scale, the electrical clearance and the creepage distance can be measured, and the device body rotates around the handle through the arrangement of the movable ratchet wheel and the pawl. Therefore, a worker can measure electrical gaps and creepage distances in different directions.

Description

TECHNICAL FIELD

[0001] The utility model relates to electrical clearance and creepage distance measurement technical field, concretely relates to a kind of electrical clearance and creepage distance measurement device. BACKGROUND

[0002] Electrical clearance refers to the insulating gap formed when two conductive bodies maintain a certain distance, which is a key indicator for measuring the insulation performance of electrical appliances. Creepage distance refers to the minimum distance that causes insulation breakdown when the electric field strength exceeds the dielectric breakdown strength on the insulating surface. The measurement of electrical clearance and creepage distance is an important means to judge the safety performance of electrical appliances.

[0003] A kind of adjustable plug gauge for electrical clearance and creepage distance measurement with publication number CN204649132U, adjustable plug gauge includes measurement main body and the rod handle connected with the measurement main body, measurement main body includes measurement part and extension, measurement part and extension are connected by first pivot rotation, the end of extension not connected with measurement part is connected with handle by second pivot rotation, when electrical clearance and creepage distance are measured, the angle of handle and measurement main body and the measurement part and extension of measurement main body can be adjusted, the effect of directly measuring the measurement part without disassembling or damaging the structure of electrical product is achieved, thereby the measurement efficiency is greatly improved and the test sample loss rate is reduced.

[0004] The deficiencies in the prior art: the existing measurement device cannot conveniently adjust the orientation of the measurement component according to the requirements when measuring electrical clearance and creepage distance, and the measurement component cannot be conveniently adjusted according to electrical clearance and creepage distance, which affects the accuracy of the measurement results and the efficiency of the measurement. UTILITY MODEL CONTENTS

[0005] Therefore, the utility model provides an electrical clearance and creepage distance measurement device to solve the problem of inaccurate measurement results and low measurement efficiency caused by the inability to conveniently adjust the orientation of the measurement component according to the requirements and the inability to conveniently adjust the measurement component according to electrical clearance and creepage distance in the prior art.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: an electrical clearance and creepage distance measurement device, comprising a device body, and further comprising:

[0007] A measurement mechanism is provided at the bottom of the device body for measuring electrical clearance and creepage distance.

[0008] A turnover mechanism is provided at the top of one end of the device body for adjusting the position of the device body.

[0009] The measuring mechanism comprises a traction spring arranged at one end of the inner wall of the device body, a movable plate fixedly installed at the end of the traction spring away from the inner wall of the device body, a pointer fixedly installed at one side of the bottom of the movable plate, and a movable shaft fixedly installed at the top of the movable plate, and a fastening pin is arranged between the movable shaft and the device body.

[0010] The turnover mechanism comprises a fixed seat, an active ratchet wheel connected with the device body arranged in the inner wall of the fixed seat, a pawl rotatably installed in the inner wall of the fixed seat and clamped with the active ratchet wheel, a reset spring fixedly installed between the pawl and the inner wall of the fixed seat, and a handle fixedly installed at the top of the fixed seat.

[0011] Preferably, the device body comprises a mounting plate, two fixed plates fixedly installed at the bottom of one end of the mounting plate, a scale opened in the outer wall of one side of the mounting plate, and an installation groove opened in the inner wall of the bottom of the mounting plate.

[0012] Preferably, the inner wall of one end of the installation groove is fixedly connected with the traction spring, a limiting rod fixedly installed in the inner side of the traction spring is fixedly installed in the inner wall of the installation groove, and the outer wall of the limiting rod is movably connected with the inner wall of the movable plate.

[0013] Preferably, an active slot is opened in the top of the installation groove, the inner wall of the active slot is movably connected with the outer wall of the movable shaft, the inner wall of the movable shaft is threadedly connected with the outer wall of the fastening pin, and the threaded part of the fastening pin is abuttingly connected with the top surface of the mounting plate.

[0014] Preferably, a fixed shaft is fixedly installed at the top of the end of the mounting plate away from the fixed plate, and the top of the fixed shaft penetrates through the bottom of the fixed seat and is fixedly connected with the inner wall of the active ratchet wheel.

[0015] Preferably, the distance between the two fixed plates is the same as the longitudinal dimension of the movable plate, and the longitudinal dimension of the installation groove is the same as the longitudinal dimension of the movable plate.

[0016] Preferably, the width dimension of the active slot is smaller than the width dimension of the installation groove, and the width dimension of the active slot is smaller than the diameter dimension of the threaded part of the fastening pin.

[0017] Preferably, the top surface of the horizontal part of the handle is at the same height as the top surface of the mounting plate.

[0018] The utility model has the advantages of:

[0019] 1. The utility model discloses a movable ratchet in the rotation of fixed seat inside makes the mounting plate can rotate around the fixed seat, and then can conveniently adjust the orientation of device body, so that the staff can conveniently measure electrical clearance and creepage distance of different orientation, and the movable plate moves under the elastic force of traction spring, so that the pointer moves along the scale, and the fastening pin can fix the movable plate after adjustment, and then the staff can conveniently measure electrical clearance and creepage distance according to the numerical value of scale, and then the accuracy of measurement result can be improved, and the efficiency of measurement can be improved simultaneously.

[0020] 2. The utility model discloses the movement of movable plate can be limited through installation groove and limiting rod, and the movement of movable plate can also be limited along with the movement of movable axle inside wall, so that movable plate keeps stable during the movement, and the setting of pawl and return spring makes that device body can only rotate unidirectionally, can guarantee the stability of device body rotation. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the embodiment of the utility model or the technical scheme in the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description. Obviously, the drawings in the following description are only exemplary, and for those skilled in the art, other implementation drawings can be obtained according to the provided drawings without creating labor.

[0022] The structure, proportion, size etc. shown in the specification are only used to cooperate with the content disclosed in the specification, for understanding and reading by those skilled in the art, and not used to limit the limiting conditions that the utility model can be implemented, so it does not have the substantial meaning of technology, any modification of structure, change of proportion relationship or adjustment of size, without affecting the effect and purpose that the utility model can produce, should still fall within the scope of the technical content disclosed by the utility model.

[0023] Figure 1 It is the whole structure schematic diagram of the utility model;

[0024] Figure 2 It is the front view vertical section of the utility model;

[0025] Figure 3 It is the A part enlarged view of the utility model; Figure 2

[0026] Figure 4 It is the device body and turnover mechanism of the utility model three-dimensional structure explosion map;

[0027] Figure 5 It is the measuring mechanism three-dimensional structure explosion map of the utility model.​

[0028] In the figure: 1, device body; 101, mounting plate; 102, fixed plate; 103, scale; 104, mounting groove; 105, movable groove; 106, fixed shaft;

[0029] 2, measuring mechanism; 201, traction spring; 202, movable plate; 203, limiting rod; 204, pointer; 205, movable shaft; 206, fastening pin;

[0030] 3, turnover mechanism; 301, fixed seat; 302, movable ratchet; 303, pawl; 304, return spring; 305, handle. DETAILED DESCRIPTION

[0031] The embodiments of the present application will be described in detail by the specific embodiments, and those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in the specification. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the present application.

[0032] Referring to the drawings accompanying Figure 1 The present application provides a kind of electrical gap and creepage distance measuring device, including device body 1, still include:

[0033] Measuring mechanism 2 is arranged at the bottom of device body 1, for measuring electrical gap and creepage distance.

[0034] Turnover mechanism 3 is arranged at the top of one end of device body 1, for adjusting the position of device body 1.

[0035] In order to conveniently measure electrical gap and creepage distance, as shown in Figures 1-2 And Figure 5 Measuring mechanism 2 includes traction spring 201, traction spring 201 is arranged at one end of the inner wall of device body 1, traction spring 201 is fixedly installed with movable plate 202 at the end away from the inner wall of device body 1, movable plate 202 is fixedly installed with pointer 204 at one side of bottom, movable plate 202 is fixedly installed with movable shaft 205 at top, fastening pin 206 is arranged between movable shaft 205 and device body 1, movable plate 202 moves under the elastic force of traction spring 201, the distance between movable plate 202 and fixed plate 102 can be adjusted, so that pointer 204 moves along scale 103, and then electrical gap and creepage distance can be conveniently measured through the corresponding relationship between pointer 204 and scale 103.

[0036] In order to conveniently adjust the orientation of device body 1, as shown inFigures 1-4 As shown in the figure, the turnover mechanism 3 includes a fixed seat 301, the inner wall of the fixed seat 301 is provided with a movable ratchet wheel 302 connected with the device body 1, the inner wall of the fixed seat 301 is rotatably installed with a pawl 303 clamped with the movable ratchet wheel 302, the pawl 303 and the inner wall of the fixed seat 301 are fixedly installed with a reset spring 304, the top of the fixed seat 301 is fixedly installed with a handle 305, the device body 1 rotates inside the fixed seat 301 through the movable ratchet wheel 302, and the device body 1 can only rotate in one direction through the setting of the pawl 303 and the reset spring 304, thereby conveniently adjusting the orientation of the device body 1.

[0037] In order to keep the movable plate 202 stable during movement, as shown in Figures 1-2 and Figures 4-5 , the device body 1 includes a mounting plate 101, the bottom of one end of the mounting plate 101 is fixedly installed with a fixed plate 102 on both sides, the outer wall of one side of the mounting plate 101 is provided with a scale 103, the inner wall of the bottom of the mounting plate 101 is provided with a mounting groove 104, the inner wall of one end of the mounting groove 104 is fixedly connected with a traction spring 201, the inner wall of the mounting groove 104 is fixedly installed with a limiting rod 203 movably inserted into the inner side of the traction spring 201, the outer wall of the limiting rod 203 is movably connected with the inner wall of the movable plate 202, and the mounting groove 104 and the limiting rod 203 can limit the movement of the movable plate 202, so that the movable plate 202 keeps stable during movement.

[0038] In order to keep the adjusted movable plate 202 stable, as shown in Figures 2-5 , the top of the mounting groove 104 is provided with a movable slot 105, the inner wall of the movable slot 105 is movably connected with the outer wall of a movable shaft 205, the inner wall of the movable shaft 205 is threadedly connected with the outer wall of a fastening pin 206, the threaded part of the fastening pin 206 is abuttingly connected with the top surface of the mounting plate 101, the movable slot 105 can limit the movement of the movable shaft 205, and the threadedly connected fastening pin 206 and the inner wall of the movable shaft 205 and the abuttingly connected top surface of the mounting plate 101 can fix the adjusted movable plate 202.

[0039] In order to stably adjust the orientation of the mounting plate 101, as shown in Figure 2 and Figure 4 , the top of the end of the mounting plate 101 away from the fixed plate 102 is fixedly installed with a fixed shaft 106, the top of the fixed shaft 106 penetrates the bottom of the fixed seat 301 and is fixedly connected with the inner wall of the movable ratchet wheel 302, the connection between the fixed shaft 106 and the movable ratchet wheel 302 enables the mounting plate 101 to rotate around the fixed seat 301, thereby adjusting the orientation of the mounting plate 101.

[0040] In order to stably adjust the electrical gap and the creepage distance, as shown in Figures 2-5As shown, the distance between the two fixed plates 102 is the same as the longitudinal dimension of the movable plate 202, the longitudinal dimension of the mounting groove 104 is the same as the longitudinal dimension of the movable plate 202, the width dimension of the movable groove 105 is smaller than the width dimension of the mounting groove 104, the width dimension of the movable groove 105 is smaller than the diameter dimension of the threaded portion of the fastening pin 206, the top surface of the horizontal portion of the handle 305 is at the same height as the top surface of the mounting plate 101, the movable plate 202 can be moved between the two fixed plates 102, and thus the electrical clearance and the creepage distance can be conveniently measured.

[0041] In the implementation scenario, when measuring the electrical clearance and the creepage distance, according to the position of the electrical clearance and the creepage distance to be measured, the mounting plate 101 is pushed to rotate around the outer wall of the fixed seat 301, the connection between the fixed shaft 106 and the movable ratchet wheel 302 enables the movable ratchet wheel 302 to rotate inside the fixed seat 301, the pawl 303 is pushed to move towards the inner wall of the fixed seat 301, the return spring 304 is retracted, when the movable ratchet wheel 302 rotates by one ratchet tooth, the pawl 303 is inserted between the two adjacent ratchet teeth under the elastic force of the return spring 304, the rotating direction of the mounting plate 101 is limited, the mounting plate 101 can be conveniently rotated to the position of the electrical clearance and the creepage distance to be measured, the fastening pin 206 is loosened to separate from the mounting plate 101, the movable plate 202 is pushed to move along the inner wall of the mounting groove 104 outside the limiting rod 203, the traction spring 201 is extended or retracted, the fixed plate 102 and the movable plate 202 can be at the two ends of the electrical clearance or the two ends of the creepage distance, the movement of the movable plate 202 enables the pointer 204 to move along the scale 103, when the movable plate 202 is adjusted, the fastening pin 206 is tightened to abut against the surface of the mounting plate 101 to fix the movable plate 202, the electrical clearance and the creepage distance can be conveniently measured through the corresponding relationship between the pointer 204 and the scale 103, the accuracy of the measurement result can be ensured, and the measurement efficiency can be improved, and the implementation manner specifically solves the problem that the position of the measurement component cannot be conveniently adjusted according to the requirement in the prior art, which affects the accuracy of the measurement result and the measurement efficiency.

[0042] Although the utility model has been described in detail above with general description and specific embodiments, some modifications or improvements can be made on the basis of the utility model, which is obvious to those skilled in the art. Therefore, these modifications or improvements made on the basis of not deviating from the spirit of the utility model all belong to the scope of protection required by the utility model.

Claims

1. An electrical gap and creepage distance measuring device comprising a device body (1), characterized in that, Also include: Measuring mechanism (2) is arranged at the bottom of the device body (1), for measuring electrical clearance and creepage distance; Turnover mechanism (3) is arranged at the top of one end of the device body (1), for adjusting the position of the device body (1); The measuring mechanism (2) includes a traction spring (201), the traction spring (201) is arranged at one end of the inner wall of the device body (1), the traction spring (201) is fixedly installed with a movable plate (202) away from the inner wall of the device body (1), the bottom of the movable plate (202) is fixedly installed with a pointer (204), the top of the movable plate (202) is fixedly installed with a movable shaft (205), the movable shaft (205) is provided with a fastening pin (206) between the device body (1). The turnover mechanism (3) includes a fixed seat (301), the inner wall of the fixed seat (301) is provided with a movable ratchet (302) connected with the device body (1), the inner wall of the fixed seat (301) is rotatably installed with a pawl (303) clamped with the movable ratchet (302), the pawl (303) and the inner wall of the fixed seat (301) are fixedly installed with a reset spring (304), the top of the fixed seat (301) is fixedly installed with a handle (305).

2. A device for measuring electrical clearances and creepage distances according to claim 1, characterized in that: The device body (1) includes a mounting plate (101), the bottom of one end of the mounting plate (101) is fixedly installed with a fixed plate (102) on both sides, the outer wall of one side of the mounting plate (101) is provided with a scale (103), and the inner wall of the mounting plate (101) is provided with a mounting groove (104) at the bottom.

3. An electrical gap and creepage distance measuring device according to claim 2, characterized in that: The inner wall of one end of the mounting groove (104) is fixedly connected with the traction spring (201), the inner wall of the mounting groove (104) is fixedly installed with a limiting rod (203) movably inserted into the inner side of the traction spring (201), and the outer wall of the limiting rod (203) is movably connected with the inner wall of the movable plate (202).

4. An electrical creepage and clearance distance measuring device according to claim 2, characterized in that: The top of the mounting groove (104) is provided with a movable slot (105), the inner wall of the movable slot (105) is movably connected with the outer wall of the movable shaft (205), the inner wall of the movable shaft (205) is threadedly connected with the outer wall of the fastening pin (206), and the threaded part of the fastening pin (206) is abuttingly connected with the top surface of the mounting plate (101).

5. An electrical creepage and clearance distance measuring device according to claim 2, characterized in that: The top of one end of the mounting plate (101) away from the fixed plate (102) is fixedly installed with a fixed shaft (106), and the fixed shaft (106) penetrates through the bottom of the fixed seat (301) and is fixedly connected with the inner wall of the movable ratchet (302).

6. An electrical creepage and clearance distance measuring device according to claim 2, characterized in that: The distance between the two fixed plates (102) is the same as the longitudinal dimension of the movable plate (202), and the longitudinal dimension of the mounting groove (104) is the same as the longitudinal dimension of the movable plate (202).

7. An electrical gap and creepage distance measuring device according to claim 4, characterized in that: The width of the movable slot (105) is smaller than the width of the mounting groove (104), and the width of the movable slot (105) is smaller than the diameter of the threaded part of the fastening pin (206).

8. An electrical creepage and clearance distance measuring device according to claim 2, characterized in that: The top surface of the horizontal part of the handle (305) is at the same height as the top surface of the mounting plate (101).

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