Positioning tool for fuse

Abstract

The utility model discloses a positioning tool for a fuse, and relates to the technical field of fuse installation. The positioning tool for the fuse comprises an adapter plate, two connecting pieces and a positioning plate, the two connecting pieces are arranged on the adapter plate, the position of at least one of the two connecting pieces is adjustable in the extending direction of the adapter plate, each connecting piece comprises an inserting part and a connecting section, the other end of each connecting section is used for being connected with the fuse, and the positioning plate is used for positioning the fuse. The positioning plate comprises at least three sleeving parts, a plurality of distances formed by connecting at least one of the plurality of sleeving parts with the other plurality of sleeving parts are unequal, and the sleeving parts are connected with the inserting parts and are in rotation stopping fit with the inserting parts. The positioning tool for the fuse can be suitable for installation and connection of fuses of different sizes and specifications, facilitates installation operation of the fuses, and is convenient to operate.

Description

Technical Field

[0001] The utility model relates to the technical field of fuse installation, and particularly to a positioning tooling for a fuse. Background Art

[0002] During the use of power equipment, accidents often occur due to overcurrent or current interruption, posing a serious threat to personal safety and the normal operation of equipment. In the process of using a fuse, since it will automatically blow to cut off the power supply when the current exceeds the rated value of the fuse, it can avoid equipment damage caused by overcurrent, short circuit, etc., and has been widely promoted and used. However, there is no unified production standard for the specification size of fuses, and it is impossible to take into account fuses of different sizes during installation, and the installation operation is relatively troublesome. Summary of the Utility Model

[0003] The utility model aims to solve at least one of the technical problems in the related art to a certain extent.

[0004] For this purpose, an embodiment of the utility model provides a positioning tooling for a fuse, which can be applicable to the installation and connection of fuses with different size specifications, and is convenient for the installation operation of the fuse, with convenient operation.

[0005] The positioning tooling for a fuse according to the embodiment of the utility model includes:

[0006] An adapter plate;

[0007] Two connecting pieces, at least one of the two connecting pieces is arranged on the adapter plate and is adjustable in position along the extension direction of the adapter plate. The connecting piece includes a plugging part and a connecting section, and the other end of the connecting section is used for connecting with the fuse;

[0008] A positioning plate, the positioning plate includes at least three socket parts, and at least one of the multiple socket parts forms multiple distances that are not equal to those formed by connecting with the other multiple socket parts. The socket part is connected with the plugging part and is rotationally stopped and matched.

[0009] The positioning tooling for a fuse according to the embodiment of the utility model can be applicable to the installation and connection of fuses with different size specifications, and is convenient for the installation operation of the fuse, with convenient operation.

[0010] In some embodiments, the cross-section of the plugging part is a regular polygon, the cross-section of the socket part is a regular polygon with the same number of sides as the cross-section of the plugging part, and at least part of the cross-section size of the socket part is adapted to the cross-section size of the plugging part.

[0011] In some embodiments, the positioning plate is provided with a relief groove at the position corresponding to the included angle between any two adjacent sides of the cross-section of the socket part, and the relief groove extends along the extending direction of the socket part.

[0012] In some embodiments, the relief groove is an arc-shaped groove, and the diameter of the cylinder corresponding to the relief groove is not greater than half of the side length of the cross-section of the socket part.

[0013] In some embodiments, the socket part includes a guiding section and a limiting section. The cross-sectional shapes of the guiding section and the limiting section are the same, and the cross-sectional dimensions of the guiding section increase proportionally along the direction away from the limiting section. The limiting section is in anti-rotation fit with the plugging part.

[0014] In some embodiments, the sum of the lengths of the guiding section and the limiting section is not less than the length of the plugging part, and the length of the limiting section is not less than half of the length of the plugging part.

[0015] In some embodiments, two mounting holes are provided at intervals along the extending direction on the adapter plate, and at least one of the two mounting holes is an elongated hole extending along the extending direction of the adapter plate. The connecting piece includes a screw rod section provided at the end of the plugging part. The screw rod section passes through the mounting hole, and a nut is threadedly connected to the part of the screw rod section passing through the mounting hole.

[0016] In some embodiments, a limiting ring is provided at one end of the socket part away from the connecting section. The limiting ring is used for the screw rod section to pass through, and the limiting ring is in blocking fit with the plugging part in the extending direction of the socket part.

[0017] In some embodiments, both the connecting section and the positioning plate are made of insulating materials.

[0018] In some embodiments, among multiple socket parts, the multiple distances formed by connecting any one socket part with other socket parts are not equal. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of the first perspective when the positioning tool for a fuse in an embodiment of the present utility model is in use.

[0020] Figure 2 is a schematic structural diagram of the second perspective when the positioning tool for a fuse in an embodiment of the present utility model is in use.

[0021] Figure 3 is a schematic structural diagram of the adapter plate in the positioning tool for a fuse in an embodiment of the present utility model.

[0022] Figure 4It is a schematic structural diagram of a connecting member in a positioning tooling for a fuse according to an embodiment of the present utility model.

[0023] Figure 5 It is a schematic structural diagram of a positioning plate in a positioning tooling for a fuse according to an embodiment of the present utility model.

[0024] Figure 6 It is a schematic structural diagram of a positioning plate in a positioning tooling for a fuse according to another embodiment of the present utility model.

[0025] Reference numerals:

[0026] Adapter plate 1; mounting hole 11;

[0027] Connecting member 2; insertion portion 21; connecting section 22; screw section 23;

[0028] Positioning plate 3; socket portion 31; guiding section 311; limiting section 312; first hole 313; second hole 314; third hole 315; fourth hole 316; avoidance groove 32; limiting ring 33;

[0029] Fuse 4. Detailed implementation manners

[0030] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present utility model, and should not be construed as limiting the present utility model.

[0031] As Figures 1 to 6 shown, the positioning tooling for a fuse according to an embodiment of the present utility model includes an adapter plate 1, two connecting members 2 and a positioning plate 3. The two connecting members 2 are arranged on the adapter plate 1 and at least one of them is adjustable in position along the extending direction of the adapter plate 1. The connecting member 2 includes an insertion portion 21 and a connecting section 22. The other end of the connecting section 22 is used to connect with the fuse 4. The positioning plate 3 includes at least three socket portions 31. At least one of the multiple socket portions 31 forms multiple distances that are not equal to those formed by connecting with the other multiple socket portions 31. The socket portion 31 is connected with the insertion portion 21 and is in anti-rotation cooperation.

[0032] The working principle of the positioning tool for the fuse of the embodiment of the utility model is as follows: when installing the fuse 4, measure the distance between the connecting ends at both ends of the fuse 4 and record it as the first distance, select two socket parts 31 with a spacing equal to the first distance from the multiple socket parts 31 on the positioning plate 3, assemble the plug-in parts 21 of the two connectors 2 at the positions of the two selected socket parts 31, and install the two connectors 2 on the adapter plate 1 to fix the connector 2 and adjust and fix the distance between the two connectors 2, and the plug-in part 21 of the connector 2 is engaged with the socket part 31 of the positioning plate 3 to prevent rotation. When the fuse 4 is installed at the other end of the connecting section 22, the connector 2 will not rotate relative to the positioning plate 3 and the adapter plate 1, which is convenient for operation and convenient for quick installation of the fuse 4 on the two connectors 2.

[0033] The positioning tool for the fuse in the embodiment of the utility model can select two different socket parts 31 on the positioning plate 3 according to the fuses 4 of different lengths to achieve the positioning and installation of the connector 2, and can limit the connector 2 from rotating relative to the positioning plate 3 and the adapter plate 1, and facilitate the installation of the fuse 4, with convenient operation.

[0034] It should be noted that the distances between at least one of the multiple socket parts 31 and the other multiple socket parts 31 are not equal, which means that n socket parts 31 are provided on the positioning plate 3, where n is an integer and not less than 3, and one of the n socket parts 31 is selected, and the socket part 31 is connected with the other socket parts 31 to form n-1 lengths, and the values of the n-1 lengths are not equal. The socket part 31 that meets this requirement is one, part or all of the n socket parts 31.

[0035] In some embodiments, as Figure 1 、 Figure 4 and Figure 5 As shown, the cross-section of the plug-in portion 21 is a regular polygon, which can be a regular quadrilateral, a regular pentagon or a regular hexagon, and the cross-section of the sleeve portion 31 is a regular polygon with the same number of sides as the cross-section of the plug-in portion 21, and the cross-sectional size of at least part of the sleeve portion 31 is adapted to the cross-sectional size of the plug-in portion 21. By setting the cross-section of the plug-in portion 21 to a regular polygon, the anti-rotation fit between the plug-in portion 21 and the sleeve portion 31 is ensured, and the regular polygon structure can ensure that the force on each side of the plug-in portion 21 is uniform, thereby avoiding damage to the plug-in portion 21 due to concentrated torsional force during use.

[0036] In some embodiments, as Figure 1 、 Figure 2 and Figure 5As shown, the positioning plate 3 is provided with an avoidance groove 32 at the included angle position of any two adjacent sides in the cross-section of the corresponding socket part 31. The avoidance groove 32 extends along the extension direction of the socket part 31. By setting the avoidance groove 32, it is convenient for the connection between the insertion part 21 and the socket part 31, and facilitates installation and disassembly.

[0037] In some embodiments, such as Figure 1 , Figure 2 and Figure 5 shown, the avoidance groove 32 is an arc-shaped groove, and the diameter of the cylinder corresponding to the avoidance groove 32 is not greater than half of the side length of the cross-section of the socket part 31. By setting the arc-shaped groove, the stress concentration at the included angle position of the adjacent sides of the corresponding cross-section of the socket part 31 can be weakened, the structural strength of the positioning plate 3 can be increased, the service life of the positioning plate 3 can be guaranteed. At the same time, the length of the arc-shaped groove is limited to ensure the size of the mating surface between the socket part 31 and the insertion part 21, and to ensure the anti-rotation fit between the socket part 31 and the insertion part 21.

[0038] Optionally, the axis of the cylinder corresponding to the avoidance groove 32 is arranged at the intersection position of the two side surfaces of the socket part 31.

[0039] In some embodiments, such as Figure 6 shown, the socket part 31 includes a guiding section 311 and a limiting section 312. The cross-sectional shapes of the guiding section 311 and the limiting section 312 are the same, that is, regular polygons with the same number of sides. And the cross-sectional dimension of the guiding section 311 increases proportionally along the direction away from the limiting section 312. The limiting section 312 is in anti-rotation fit with the insertion part 21. By setting the guiding section 311, it is convenient to guide the insertion part 21 during the installation of the insertion part 21, so that the insertion part 21 can enter the limiting section 312.

[0040] In some embodiments, the sum of the lengths of the guiding section 311 and the limiting section 312 is not less than the length of the insertion part 21, and the length of the limiting section 312 is not less than half of the length of the insertion part 21. By limiting the lengths of the guiding section 311 and the limiting section 312, the length of the insertion section fitting in the limiting section 312 is ensured, and thus the connection stability between the limiting section 312 and the insertion part 21 is guaranteed.

[0041] Optionally, the sum of the lengths of the guiding section 311 and the limiting section 312 is equal to the length of the insertion part 21.

[0042] In some embodiments, such as Figure 2 , Figure 3 and Figure 4As shown, two mounting holes 11 are provided on the adapter plate 1 at intervals along the extension direction, and at least one of the two mounting holes 11 is a long hole extending along the extension direction of the adapter plate 1, that is, the mounting holes 11 on the adapter plate 1 are two long holes or one of the two mounting holes 11 is a long hole and the other is a through hole for a bolt to pass through, and the connecting member 2 includes a screw segment 23 provided at the end of the plug-in portion 21, the screw segment 23 is passed through the mounting hole 11, and a nut is threadedly connected to the portion of the screw segment 23 passing through the mounting hole 11.

[0043] During installation, the screw segments 23 at the ends of the two connecting segments 22 that cooperate with the positioning plate 3 are respectively passed through the two mounting holes 11, and nuts are installed on the screw segments 23 to fix the connector 2 and the adapter plate 1 together, so as to facilitate the concealment of the fuse 4.

[0044] In some embodiments, as Figure 6 As shown, a limiting ring 33 is provided at one end of the sleeve portion 31 away from the connecting section 22. The limiting ring 33 is used for the screw section 23 to pass through, and the limiting ring 33 cooperates with the plug-in portion 21 in the extension direction of the sleeve portion 31. The limiting ring 33 is provided. When the connector 2 is installed on the adapter plate 1, the plug-in portion 21 on the connector 2 is blocked by the limiting ring 33. When the nut fixes the connector 2, the positioning plate 3 can be fixed to the adapter plate 1 through the connector 2 at the same time to fix the position of the positioning plate 3 to prevent the positioning plate 3 from shaking and causing interference or damage to other components.

[0045] In some embodiments, the connecting section 22 and the positioning plate 3 are both made of insulating materials to ensure safety during installation and use.

[0046] Optionally, the connecting end and the positioning plate 3 are made of ceramic material or PF material.

[0047] In some embodiments, as Figure 5 As shown, among the multiple socket parts 31, the multiple distances formed by connecting any socket part 31 with other socket parts 31 are not equal, that is, the distance between any two socket parts 31 is a unique value. When the number of socket parts 31 is limited, the number of length dimensions of the adaptable fuses 4 is increased.

[0048] Optionally, four socket parts 31 are provided on the positioning plate 3, namely the first hole 313, the second hole 314, the third hole 315 and the fourth hole 316, wherein the distance between the first hole 313 and the second hole 314 is 58 mm, the distance between the first hole 313 and the third hole 315 is 112 mm, the distance between the first hole 313 and the fourth hole 316 is 89 mm, the distance between the second hole 314 and the third hole 315 is 96 mm, the distance between the second hole 314 and the fourth hole 316 is 130 mm, and the distance between the third hole 315 and the fourth hole 316 is 108 mm.

[0049] It should be noted that the multiple distance indication numbers here are only for the explanation that the distance between any two socket parts 31 is a unique value, and do not serve as a limitation on specific values. During the adaptation process, five, six or seven socket parts 31 can also be set, and the positions of the multiple socket parts 31 can be adjusted adaptively according to requirements.

[0050] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0051] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0052] In the present invention, unless otherwise clearly specified and limited, the terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection or communication with each other; it can be directly connected, or indirectly connected through an intermediate medium, and can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0053] In the present invention, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or simply indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature has a lower horizontal height than the second feature.

[0054] In the description of this specification, the descriptions with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0055] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present utility model.

Claims

1. A positioning tooling for a fuse, characterized in that, Comprising: Adapter board; Two connecting pieces, at least one of the two connecting pieces is arranged on the adapter board and is position-adjustable along the extending direction of the adapter board. The connecting piece includes a plugging part and a connecting section, and the other end of the connecting section is used for connecting with a fuse; Positioning plate, the positioning plate includes at least three socket parts, and the distances formed by connecting at least one of the multiple socket parts with the other multiple socket parts are not equal to each other. The socket part is connected with the plugging part and is in anti-rotation fit.

2. The positioning tooling for fuse according to claim 1, characterized in that The cross-section of the plugging part is a regular polygon, the cross-section of the socket part is a regular polygon with the same number of sides as the cross-section of the plugging part, and the cross-section size of at least part of the socket part is adapted to the cross-section size of the plugging part.

3. The positioning tooling for a fuse according to claim 2, characterized in that, The positioning plate is provided with a relief groove at the included angle position of any two adjacent sides of the cross-section of the socket part, and the relief groove extends along the extending direction of the socket part.

4. The positioning tooling for a fuse according to claim 3, characterized in that, The relief groove is an arc-shaped groove, and the diameter of the cylinder corresponding to the relief groove is not greater than half of the side length of the cross-section of the socket part.

5. The positioning tooling for fuse according to claim 2, characterized in that, The socket part includes a guiding section and a limiting section, the cross-section shapes of the guiding section and the limiting section are the same, and the cross-section size of the guiding section increases proportionally along the direction away from the limiting section. The limiting section is in anti-rotation fit with the plugging part.

6. The positioning tooling for a fuse according to claim 5, characterized in that, The sum of the lengths of the guiding section and the limiting section is not less than the length of the plugging part, and the length of the limiting section is not less than half of the length of the plugging part.

7. The positioning tooling for fuse according to claim 2, wherein, Two mounting holes are arranged on the adapter board at intervals along the extending direction, and at least one of the two mounting holes is a long hole extending along the extending direction of the adapter board. The connecting piece includes a screw rod section arranged at the end of the plugging part. The screw rod section passes through the mounting hole, and a nut is threadedly connected to the part of the screw rod section passing through the mounting hole.

8. The positioning tooling for a fuse according to claim 7, characterized in that, A limiting ring is arranged at one end of the socket part far away from the connecting section, the limiting ring is used for the screw rod section to pass through, and the limiting ring is in blocking fit with the plugging part in the extending direction of the socket part.

9. The positioning tooling for fuse according to claim 1, characterized in that, Both the connecting section and the positioning plate are made of insulating materials.

10. The positioning tooling for a fuse according to claim 1, characterized in that, Among the multiple socket parts, the distances formed by connecting any one of the socket parts with the other socket parts are not equal to each other.

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