Positioning mechanism and megohmmeter auxiliary wiring conversion device

Abstract

The utility model relates to the technical field of wiring centralized conversion devices, in particular to a positioning mechanism and a megohmmeter auxiliary wiring conversion device, and the positioning mechanism comprises a containing assembly which comprises a cover body, a box body arranged below the cover body, a rotating disc movably arranged on the end face of the cover body, and a ratchet wheel fixedly arranged on the outer wall of the rotating disc; the limiting assembly comprises a starting column arranged in the rotary disc in a sliding mode, a pawl arranged outside the ratchet wheel in a rotating mode and a push rod arranged outside the pawl. The clamping assembly comprises a connecting piece arranged in the cover body and a clamping groove formed in the inner wall of the box body. The switching device has the advantages that the ratchet wheel and the pawl are arranged on the outer wall of the rotating disc, so that the current gear is kept to prevent gear deviation when the rotating disc rotates to a proper gear, and later maintenance of the switching device is facilitated through matching of the connecting piece of the clamping assembly and the clamping groove.

Description

Technical Field

[0001] The utility model relates to the technical field of wiring centralized conversion devices, in particular to a positioning mechanism and an auxiliary wiring conversion device for a megohmmeter. Background Technique

[0002] At present, insulation measurement is carried out using an insulation megohmmeter. However, the megohmmeter has only three wiring terminals, namely the DC positive and negative poles and the shield wire terminal. There are more data to be measured for the insulation of a three-phase circuit or electrical equipment, that is, the insulation between phase A and the ground, the insulation between phase B and the ground, the insulation between phase C and the ground, the insulation between phase A and phase B, the insulation between phase A and phase C, and the insulation between phase B and phase C. When using the insulation megohmmeter to measure the insulation of a three-phase circuit or electrical equipment, repeated wiring, repeated measurement, and repeated discharge seriously affect the work efficiency. When using this device, it is necessary to turn the knob to facilitate the staff to measure the data of this gear. When using the knob, due to accidental touch, the gear may deviate, resulting in inaccurate measurement data. In addition, during the use of the conversion device, when the internal circuit board is damaged, it is necessary to repair the internal circuit board, and then it is necessary to disassemble and reinstall the conversion device. Content of the Utility Model

[0003] In view of the above-mentioned technical problem that the existing conversion device has inaccurate measurement data due to accidental touch of the gear, the present utility model is proposed.

[0004] The purpose of the present utility model is to provide a positioning mechanism, aiming to solve the problem that the conversion device has inaccurate measurement data due to accidental touch of the gear.

[0005] To solve the above technical problem, the present utility model provides the following technical solution: a positioning mechanism, which includes a receiving component, which includes a cover body, a box body arranged below the cover body, a turntable movably arranged on the end face of the cover body, and a ratchet wheel fixedly arranged on the outer wall of the turntable; and a limiting component, which includes a starting column slidably arranged inside the turntable, a pawl rotatably arranged outside the ratchet wheel, and a push rod arranged outside the pawl.

[0006] As a preferred scheme of the positioning mechanism of the present utility model, wherein: equipment wiring terminals and power supply wiring terminals are arranged on the end face of the cover body, a key is arranged on the end face of the cover body, and an indicator light is arranged below the power supply wiring terminal.

[0007] As a preferred scheme of the positioning mechanism of the present utility model, wherein: a special-shaped connecting rod is fixedly connected to the outer wall of the push rod, a conversion connecting rod is movably arranged at one end of the special-shaped connecting rod, and the conversion connecting rod is movably connected to the starting column.

[0008] As a preferred scheme of the positioning mechanism of the present utility model, wherein: an extension frame is fixedly arranged on the end face of the starting column, and a circular ring is fixedly connected to the end face of the extension frame.

[0009] As a preferred embodiment of the positioning mechanism of the present utility model, the following is provided: An extension block is fixedly arranged on the end face of the turntable, and a first sliding groove is formed inside the extension block, and the first sliding groove is slidably connected with the ring.

[0010] As a preferred embodiment of the positioning mechanism of the present utility model, the following is provided: A second sliding groove is further formed inside the turntable, the second sliding groove is formed below the first sliding groove, and the second sliding groove is communicated with the first sliding groove.

[0011] As a preferred embodiment of the positioning mechanism of the present utility model, the following is provided: A plurality of bearing plates are movably arranged inside the second sliding groove, a spring is fixedly arranged on the end face of the bearing plate, and one end of the spring is fixedly connected with the ring.

[0012] The beneficial effect of the positioning mechanism of the present utility model is as follows: The ratchet pawl arranged on the outer wall of the turntable enables the turntable to maintain the current gear when rotating to an appropriate gear, which is convenient for the staff to measure the current in-place data. When it is necessary to switch gears, press the starting column to disengage the ratchet pawl from the limit, and then the gear can be changed.

[0013] Another object of the present utility model is to provide an auxiliary wiring conversion device for a megohmmeter, aiming to solve the problem that the conversion device needs to be disassembled and assembled when it is damaged inside.

[0014] To solve the above technical problems, the present utility model further provides the following technical solution: An auxiliary wiring conversion device for a megohmmeter, which includes a positioning mechanism; and a clamping component, including a connecting piece arranged inside the cover body and a clamping groove formed on the inner wall of the box body.

[0015] As a preferred embodiment of the auxiliary wiring conversion device for a megohmmeter of the present utility model, the following is provided: The connecting piece is fixedly arranged on the inner wall of the box body, a clamping block is fixedly arranged on the outer wall of the connecting piece, and a first inclined surface is formed on the end face of the clamping block.

[0016] As a preferred embodiment of the auxiliary wiring conversion device for a megohmmeter of the present utility model, the following is provided: A second inclined surface matching with the first inclined surface is formed on the end face of the box body, and the clamping groove is movably matched with the clamping block.

[0017] The beneficial effect of the auxiliary wiring conversion device for a megohmmeter of the present utility model is as follows: Through the cooperation between the connecting piece and the clamping groove of the clamping component, when using the conversion device, the cover body can be vertically connected to the box body. When disassembling, gently press both sides of the cover body and then the cover body can be pulled out upward, which is convenient for the later maintenance of the conversion device. Description of the Drawings

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0019] Figure 1 It is the overall schematic diagram of the megohmmeter auxiliary wiring conversion device in the present invention.

[0020] Figure 2 It is the sectional view of the megohmmeter auxiliary wiring conversion device in the present invention.

[0021] Figure 3 It is the sectional view of the megohmmeter auxiliary wiring conversion device from another angle in the present invention.

[0022] Figure 4 It is the enlarged view of part A of the megohmmeter auxiliary wiring conversion device in the present invention.

[0023] Figure 5 It is the enlarged view of part B of the megohmmeter auxiliary wiring conversion device in the present invention.

[0024] Figure 6 It is the exploded view of the megohmmeter auxiliary wiring conversion device in the present invention. Specific Embodiments

[0025] To make the above objects, features, and advantages of the present invention more obvious and understandable, the following will make a detailed description of the specific embodiments of the present invention in conjunction with the drawings in the specification.

[0026] In the following description, many specific details are set forth to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0027] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that can be included in at least one implementation manner of the present invention. The "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it an individual or selectively exclusive embodiment with other embodiments.

[0028] Embodiment 1, refer to Figures 1 to 5, which is the first embodiment of the present utility model. This embodiment provides a positioning mechanism, including a receiving component 100, the receiving component 100 includes a cover body 101, a box body 102 arranged below the cover body 101, a turntable 103 movably arranged on the end face of the cover body 101, and a ratchet wheel 103a fixedly arranged on the outer wall of the turntable 103; and a limiting component 200, the limiting component 200 includes a starting column 201 slidably arranged inside the turntable 103, a pawl 202 rotatably arranged outside the ratchet wheel 103a, and a push rod 203 arranged outside the pawl 202.

[0029] Preferably, a knob 104 is fixedly arranged on the end face of the turntable 103. The knob 104 rotates synchronously with the turntable 103 to control the conversion device to switch different gears. The position of the starting column 201 is located in the middle of the knob 104 and is slidably connected to the knob 104. The starting column 201 is coaxially arranged with the turntable 103.

[0030] Device wiring terminals 105 and power supply wiring terminals 106 are arranged on the end face of the cover body 101. A key 107 is arranged on the end face of the cover body 101. An indicator light 108 is arranged below the power supply wiring terminal 106.

[0031] Preferably, four device wiring terminals 105 are arranged in an array. Figure 1 Taking [example] as an example, from left to right, they are the wiring terminals of A, B, C, and E ends in sequence. There are 2 power supply wiring terminals 106 respectively used to connect the positive and negative poles of the DC power supply. During use, connect the device wiring terminals 105 and the power supply wiring terminals 106 to the corresponding wire harnesses respectively, and rotating the knob 104 can achieve the insulation of different ports of A, B, C, and E ends relative to the ground.

[0032] A special-shaped connecting rod 203a is fixedly connected to the outer wall of the push rod 203. One end of the special-shaped connecting rod 203a is movably provided with a conversion connecting rod 204. The conversion connecting rod 204 is movably connected to the starting column 201.

[0033] Preferably, the push rod 203 is in an arc shape, and the push rod 203 is slidably connected to the extension block 103b. A section of the special-shaped connecting rod 203a close to the extension block 103b is bent to avoid the rotation trajectory of the extension block 103b. The width of the bent part is greater than the sliding length of the special-shaped connecting rod 203a. That is, when the turntable 103 and the extension block 103b rotate synchronously to switch gears, the special-shaped connecting rod 203a will not affect the rotation of the turntable 103, and the special-shaped connecting rod 203a will not contact the turntable 103 when sliding to one side to affect its rotation;

[0034] Further, the conversion link 204 is hinged to the starting column 201. The initial position of the conversion link 204 forms a certain angle with the axis of the starting column 201. The conversion link 204 is hinged to the special-shaped link 203a, and the special-shaped link 203a is slidably connected to the pawl 202. An avoidance groove is provided inside the pawl 202 to enable the pawl 202 to rotate freely. When the push rod 203 slides away from the ratchet wheel 103a, it will push the pawl 202 to rotate, so that the pawl 202 is disengaged from the limit of the ratchet wheel 103a, allowing the turntable 103 to rotate freely to switch gears.

[0035] An extension bracket 201a is fixedly arranged on the end face of the starting column 201, and a circular ring 201b is fixedly connected to the end face of the extension bracket 201a.

[0036] An extension block 103b is fixedly arranged on the end face of the turntable 103. A first sliding groove 103c is provided inside the extension block 103b, and the first sliding groove 103c is slidably connected to the circular ring 201b.

[0037] Preferably, both the first sliding groove 103c and the second sliding groove 103d are arc-shaped sliding grooves, and the position of the first sliding groove 103c is above the second sliding groove 103d.

[0038] A second sliding groove 103d is further provided inside the turntable 103. The second sliding groove 103d is provided below the first sliding groove 103c and is communicated with the first sliding groove 103c.

[0039] A plurality of bearing plates 205a are movably arranged inside the second sliding groove 103d. A spring 205 is fixedly arranged on the end face of the bearing plate 205a. One end of the spring 205 is fixedly connected to the circular ring 201b.

[0040] Preferably, the bearing tray 205a is slidably connected to the second sliding groove 103d. The bearing tray 205a is disc-shaped, and the outer wall of the bearing tray 205a is tangent to the inner wall of the second sliding groove 103d. The bearing tray 205a is the inscribed circle of the second sliding groove 103d. When the disc 103 rotates, the position of the bearing tray 205a remains unchanged, and the bearing tray 205a and the spring 205 only play a role in supporting and resetting the starting column 201.

[0041] In summary, during use, after the staff connects the corresponding device wire harness to the auxiliary device, press down the starting column 201. The starting column 201 drives the conversion link 204 to move downward and push the special-shaped link 203a to slide to the right. Since the special-shaped link 203a is slidably connected to the pawl 202, the special-shaped link 203a can only slide to the right. When the push block 203 pushes the pawl 202 up, the pawl 202 is disengaged from the limit of the ratchet wheel 103a. The staff selects the gear according to the need. After confirming the current gear, release the starting column 201 to fix the current gear, preventing inaccurate data measurement caused by gear sliding.

[0042] Example 2. Refer to Figure 6 This is the second embodiment of the present utility model. This embodiment further provides an auxiliary wiring conversion device for a megohmmeter. It includes a clamping component 300. The clamping component 300 includes a connecting piece 301 provided inside the cover body 101 and a clamping groove 302 opened on the inner wall of the box body 102.

[0043] Preferably, the connecting piece 301 is located on the inner wall of the cover body 101 and is fixedly connected to the inner wall of the cover body 101. There are multiple connecting pieces 301, and the connecting piece 301 is made of an elastic plastic part. When pressing the cover body 101 inward, the connecting piece 301 can be bent inward.

[0044] The connecting piece 301 is fixedly arranged on the inner wall of the box body 102. A clamping block 304 is fixedly arranged on the outer wall of the connecting piece 301, and a first inclined surface 305 is opened on the end surface of the clamping block 304.

[0045] Preferably, multiple clamping blocks 304 are arranged in an array, and multiple clamping blocks 304 are in the same horizontal plane. Multiple clamping blocks 304 are all fixedly connected to the connecting piece 301, and the clamping block 304 is also made of a deformable material.

[0046] A second inclined surface 303 is opened on the end surface of the box body 102 to cooperate with the first inclined surface 305. The clamping groove 302 is movably matched with the clamping block 304.

[0047] Preferably, the clamping blocks 304 are only symmetrically arranged on the outer walls of the connecting pieces 301 on both sides of the cover body 101, so as to facilitate the disassembly of the cover body 101 and the box body 102 when the staff uses it.

[0048] In summary, taking the installation of the box body 102 and the cover body 101 as an example, initially align the cover body 101 and the box body 102, move the cover body 101 downward. When the cover body 101 moves to an appropriate position, the first inclined surface 305 on the clamping block 304 contacts the second inclined surface 303, causing the connecting pieces 301 on both sides to approach each other, that is, deforming inward into the cover body 101. At this time, continue to move the cover body 101 downward so that the clamping block 304 completely enters the clamping groove 302, then the lower surface of the cover body 101 can contact the upper surface of the box body 102, completing the installation of the cover body 101 and the box body 102. When disassembling, squeeze the two side walls of the cover body 101 inward and pull out the cover body 101 upward to repair the damaged circuit board inside.

[0049] Importantly, it should be noted that the construction and arrangement of the present application shown in multiple different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who refer to this disclosure should easily understand that many modifications are possible without materially departing from the novel teachings and advantages of the subject matter described in this application (e.g., changes in the dimensions, scales, structures, shapes and proportions of various elements, as well as parameter values (such as temperature, pressure, etc.), installation arrangements, use of materials, colors, orientations, etc.). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature, number or position of discrete elements may be altered or changed. Accordingly, all such modifications are intended to be included within the scope of the present utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "means plus function" clause is intended to cover the structures that perform the recited function herein, and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present utility model. Therefore, the present utility model is not limited to a particular embodiment, but extends to various modifications that still fall within the scope of the appended claims.

[0050] In addition, in order to provide a concise description of the exemplary embodiments, all features of the actual embodiments may not be described (i.e., those features that are not relevant to the currently contemplated best mode of carrying out the present utility model or those features that are not relevant to the implementation of the present utility model).

[0051] It should be understood that in the development of any actual implementation, as in any engineering or design project, numerous specific implementation decisions may be made. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, without undue experimentation, such development efforts will be a routine task of design, manufacturing and production.

[0052] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and not to limit them. Although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present utility model may be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present utility model, and they should all be covered within the scope of the claims of the present utility model.

Claims

1. A positioning mechanism, characterized in that: include, A containing assembly (100) comprises a cover body (101), a box body (102) arranged below the cover body (101), a rotating disk (103) movably arranged on the end surface of the cover body (101), and a ratchet (103a) fixedly arranged on the outer wall of the rotating disk (103); and, The limiting assembly (200) comprises a starting column (201) slidably arranged inside the rotating disk (103), a ratchet pawl (202) rotatably arranged outside the ratchet wheel (103a), and a push rod (203) arranged outside the ratchet pawl (202).

2. The positioning mechanism according to claim 1, characterized in that: The end surface of the cover body (101) is provided with a device connection terminal (105) and a power connection terminal (106), the end surface of the cover body (101) is provided with a button (107), and an indicator light (108) is provided below the power connection terminal (106).

3. The positioning mechanism according to claim 2, characterized in that: The outer wall of the push rod (203) is fixedly connected with a special-shaped connecting rod (203a), one end of the special-shaped connecting rod (203a) is movably provided with a conversion connecting rod (204), and the conversion connecting rod (204) is movably connected to the starting column (201).

4. The positioning mechanism according to claim 3, characterized in that: An extension frame (201a) is fixedly provided on the end surface of the starting column (201), and a circular ring (201b) is fixedly connected to the end surface of the extension frame (201a).

5. The positioning mechanism according to claim 4, characterized in that: An extension block (103b) is fixedly arranged on the end surface of the rotating disk (103), a first sliding groove (103c) is provided inside the extension block (103b), and the first sliding groove (103c) is slidably connected to the circular ring (201b).

6. The positioning mechanism according to claim 5, characterized in that: A second slide groove (103d) is also provided inside the rotating disk (103), and the second slide groove (103d) is provided below the first slide groove (103c), and the second slide groove (103d) is connected to the first slide groove (103c).

7. The positioning mechanism according to claim 6, characterized in that: A plurality of supporting plates (205a) are movably arranged inside the second slide groove (103d), and a spring (205) is fixedly arranged on the end surface of the supporting plate (205a), and one end of the spring (205) is fixedly connected to the circular ring (201b).

8. A megohmmeter auxiliary wiring conversion device, characterized in that: comprising the positioning mechanism according to any one of claims 1 to 7; and The clamping assembly (300) comprises a connecting piece (301) arranged inside the cover body (101) and a clamping groove (302) opened on the inner wall of the box body (102).

9. The megohmmeter auxiliary wiring conversion device according to claim 8, characterized in that: The connecting piece (301) is fixedly arranged on the inner wall of the box body (102), and a clamping block (304) is fixedly arranged on the outer wall of the connecting piece (301), and a first inclined surface (305) is formed on the end surface of the clamping block (304).

10. The megohmmeter auxiliary wiring conversion device according to claim 9, characterized in that: The end surface of the box body (102) is provided with a second inclined surface (303) that cooperates with the first inclined surface (305). The clamping groove (302) is movably matched with the clamping block (304).

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