Gasket for drop-out fuse

Abstract

The invention discloses a gasket for a drop-out fuse, and the gasket comprises a protection unit, and the protection unit comprises a protection part, an anti-pressing part disposed at the bottom of the protection part, a connecting part disposed at the top of the anti-pressing part, a limiting part fixedly connected with the anti-pressing part, and an anti-sliding part disposed in the limiting part. According to the invention, direct extrusion on the fuse wire can be avoided through the arrangement of the protection part and the anti-pressing part, the protection part and the anti-pressing part are movably connected, and when the protection part rotates along with the nut, the anti-pressing part does not rotate, so that the situation that the fuse wire is snapped and flattened after being tightened due to the fact that the fuse wire is driven to rotate is avoided; meanwhile, the limiting piece is matched with the anti-skid piece, so that the stability of the anti-pressing piece can be further enhanced, and rotation of the anti-pressing piece is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of gaskets for drop-out fuses, in particular to a gasket for drop-out fuses and a method thereof. Background Art

[0002] When installing and replacing the fuse of a traditional high-voltage drop fuse, the compression gasket often rotates with the screw when tightening the screw, causing the compression gasket to drive the fuse to rotate and the fuse to be often broken (including the newly replaced fuse), making the staff dare not tighten it hard. As a result, after power is supplied, the fuse will have poor contact and easy to heat up during operation, and in severe cases, the fuse will burn out. Summary of the invention

[0003] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0004] In view of the above problems or problems existing in the prior art, the present invention is proposed.

[0005] Therefore, the purpose of the present invention is to provide a gasket for a drop-out fuse, which can effectively prevent the phenomenon that the fuse follows the bolt to rotate during installation, avoid the phenomenon that the drop-out fuse is broken in a natural state due to excessive tightness when installing the fuse, and avoid the fuse being flattened due to excessive tightness to different degrees.

[0006] To solve the above technical problems, the present invention provides the following technical solutions: a gasket for a drop-type fuse, which includes a protective unit, the protective unit includes a protective part, an anti-pressure part arranged at the bottom of the protective part, a connecting part arranged at the top of the anti-pressure part, a limiting part fixedly connected to the anti-pressure part, and an anti-slip part arranged inside the limiting part.

[0007] As a preferred solution of the gasket for drop-out fuse of the present invention, the protective member comprises a metal gasket, an L-shaped cavity is provided inside the metal gasket, and a group of first through holes is provided on the top of the metal gasket.

[0008] As a preferred solution of the gasket for drop-out fuse of the present invention, the anti-pressure piece includes an elastic rubber gasket arranged at the bottom of the metal gasket, a groove is provided at the bottom of the elastic rubber gasket, and a limiting groove is provided on one side of the groove.

[0009] As a preferred solution of the gasket for drop-out fuse of the present invention, the connecting piece is fixedly arranged on the top of the elastic rubber gasket, the connecting piece is L-shaped, and the connecting piece is slidably installed inside the L-shaped cavity.

[0010] As a preferred solution of the gasket for drop-out fuse of the present invention, the limiting member includes a sleeve arranged outside the elastic rubber gasket, one end of the sleeve is provided with an installation cavity, and one end of the installation cavity is provided with a second through hole.

[0011] As a preferred solution of the gasket for the drop-type fuse of the present invention, the anti-slip part includes a support rod passing through the second through hole, a handle is fixedly provided at one end of the support rod, a limit disk is fixedly installed on the outer side of one end of the support rod passing through the installation cavity, a reset spring is sleeved on the outer wall of the support rod, one end of the reset spring is fixedly installed on the inner wall of the installation cavity, the other end of the reset spring is fixedly installed on the outer wall of the limit disk, one end of the support rod passes through the elastic rubber gasket, and an anti-sliding block is fixedly installed on the end of the support rod passing through the elastic rubber gasket.

[0012] As a preferred solution of the gasket for drop-out fuse of the present invention, the first through hole is communicated with the L-shaped cavity.

[0013] As a preferred solution of the gasket for drop-out fuse of the present invention, one side of the anti-slip block is provided with anti-slip grooves, and the anti-slip grooves are used to increase friction.

[0014] As a preferred solution of the gasket for drop-out fuse of the present invention, the installation cavity is cylindrical, and the diameter of the limiting disk is the same as the diameter of the installation cavity.

[0015] As a preferred solution of the gasket for drop-out fuse of the present invention, the hardness of the connecting piece is greater than that of the elastic rubber gasket.

[0016] Beneficial effects of the present invention: the present invention can avoid direct squeezing of the fuse by setting the protective part and the anti-pressure part. At the same time, the protective part and the anti-pressure part are movably connected. When the protective part rotates following the nut, the anti-pressure part will not rotate, and thus will not drive the fuse to rotate, resulting in the fuse being broken and flattened after being tightened. At the same time, the limit part cooperates with the anti-slip part to further enhance the stability of the anti-pressure part and avoid the rotation of the anti-pressure part. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0018] Figure 1 It is a schematic diagram of the overall structure of a gasket used for a drop-out type fuse.

[0019] Figure 2 For drop-out fuses Figure 1 A in the figure is an enlarged view.

[0020] Figure 3 The utility model relates to an overall structure of a protection unit for a drop-out type fuse.

[0021] Figure 4 It is a cross-sectional view of the anti-pressure piece for drop-out fuse.

[0022] Figure 5 It is a cross-sectional view of an anti-slip member for a drop-out type fuse. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0024] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0026] Example 1

[0027] Reference Figures 1-2 , which is the first embodiment of the present invention, and this embodiment provides a gasket for a drop-out type fuse, which includes a protective unit 100, the protective unit 100 includes a protective member 101, an anti-pressure member 102 arranged at the bottom of the protective member 101, a connecting member 103 arranged at the top of the anti-pressure member 102, a limiting member 104 fixedly connected to the anti-pressure member 102, and an anti-slip member 105 arranged inside the limiting member 104.

[0028] Furthermore, the protective member 101 includes a metal gasket 101 a , an L-shaped cavity 101 b is defined inside the metal gasket 101 a , and a group of first through holes 101 c is defined on the top of the metal gasket 101 a .

[0029] It should be noted that the L-shaped cavity 101b is connected to the first through hole 101c, so that it is convenient to add lubricant into the L-shaped cavity 101b through the first through hole 101c, so as to prevent the metal gasket 101a from driving the elastic rubber gasket 102a to rotate, reduce the wear of the connecting member 103, and extend the service life of the connecting member 103.

[0030] Furthermore, the pressure-proof member 102 includes an elastic rubber gasket 102a disposed at the bottom of the metal gasket 101a, a groove 102b is formed at the bottom of the elastic rubber gasket 102a, and a limiting groove 102c is formed at one side of the groove 102b.

[0031] It should be noted that the groove 102b is provided to better wrap the fuse to prevent the fuse from being affected by the outside world and causing the fuse to break.

[0032] Furthermore, the connecting member 103 is fixedly disposed on the top of the elastic rubber gasket 102a, and the connecting member 103 is L-shaped. The connecting member 103 is slidably installed inside the L-shaped cavity 101b.

[0033] Preferably, the setting of the connecting piece 103 facilitates the connection between the elastic rubber gasket 102a and the metal gasket 101a. At the same time, the rotation of the metal gasket 101a cannot transmit power to the elastic rubber gasket 102a due to the setting of the connecting piece 103. The setting of the elastic rubber gasket 102a can effectively protect the fuse. At the same time, the elastic rubber gasket 102a has a certain elasticity to resist the downward force of the nut on the fuse.

[0034] Furthermore, the limiting member 104 includes a sleeve 104a disposed outside the elastic rubber gasket 102a, an installation cavity 104b is defined at one end of the sleeve 104a, and a second through hole 104c is defined at one end of the installation cavity 104b.

[0035] It should be noted that the setting of the limiting member 104 can increase the stability of the elastic rubber gasket 102a, and prevent the elastic rubber gasket 102a from rotating, thereby causing the fuse to rotate.

[0036] Furthermore, the anti-slip component 105 includes a support rod 105a passing through the second through hole 104c, a handle 105b is fixedly provided at one end of the support rod 105a, a limit plate 105c is fixedly installed on the outer side of one end of the support rod 105a passing through the installation cavity 104b, a return spring 105d is sleeved on the outer wall of the support rod 105a, one end of the return spring 105d is fixedly installed on the inner wall of the installation cavity 104b, the other end of the return spring 105d is fixedly installed on the outer wall of the limit plate 105c, and one end of the support rod 105a passes through the elastic rubber gasket 102a, and an anti-sliding block 105e is fixedly installed on one end of the support rod 105a passing through the elastic rubber gasket 102a.

[0037] It should be noted that a through hole is provided on the outer side of the elastic rubber gasket 102a. The through hole is on the same horizontal line as the second through hole 104c, and the central axis of the through hole is on the same central axis as the second through hole 104c.

[0038] Preferably, the limit member 104 cooperates with the anti-slip member 105 to stabilize the anti-pressure member 102. At the same time, the setting of the anti-slip member 105 can not only stabilize the anti-pressure member 102, but also fix the fuse. Under the action of the reset spring 105d, the anti-slip member 105e set at one end of the support rod 105a is fixed on the fuse wrapped around the outer wall of the stud, which can clamp the fuse and prevent the fuse from slipping.

[0039] Furthermore, the first through hole 101c is communicated with the L-shaped cavity 101b.

[0040] Furthermore, one side of the anti-slip block 105e is provided with anti-slip grooves, and the anti-slip grooves are used to increase friction.

[0041] Furthermore, the installation cavity 104b is cylindrical, and the diameter of the limiting plate 105c is the same as the diameter of the installation cavity 104b.

[0042] Furthermore, the hardness of the connecting member 103 is greater than that of the elastic rubber gasket 102a.

[0043] When in use, firstly wrap the fuse around the stud, then cover the outer wall of the fuse with one side of the elastic rubber gasket 102a, and pull the handle 105b outward while covering, the handle 105b drives the support column 105a to move, and the support column 105a drives the limit plate 105c set on the outer wall to move, the movement of the limit plate 105c continuously squeezes the reset spring 105d, and the reset spring 105d undergoes elastic deformation, and further the movement of the support rod 105a drives the anti-sliding block 105e to move, and when the elastic rubber gasket 102a completely covers the fuse, release the handle 105b, and under the action of the reset spring 105d, the anti-sliding block 105e is reset to fit the outer wall of the fuse, and at the same time, the limit groove 102c and the limit groove 102c are aligned when covering the fuse. Align, make the stud pass through the elastic rubber gasket 102a and the metal gasket 101a, further screw on the nut, and then continue to tighten the nut. During the continuous downward movement of the nut, it gradually fits and contacts with the metal gasket 101a, and the surface of the metal gasket 101a contacts the surface of the nut. Under the action of friction, the nut drives the metal gasket 101a to rotate, and the metal gasket 101a rotates around the stud. At the same time, the connecting piece 103 that is slidably connected to the metal gasket 101a remains stationary when the metal gasket 101a rotates. At the same time, the rotational force of the metal gasket 101a cannot be transmitted to the anti-pressure piece 102a through the connecting piece 103. The anti-pressure piece 102a also moves downward under the downward action of the nut, and continuously presses the fuse to complete the fixation of the fuse.

[0044] In summary, the present invention can avoid direct squeezing of the fuse by arranging the protective part and the anti-pressure part. At the same time, the protective part and the anti-pressure part are movably connected. When the protective part rotates following the nut, the anti-pressure part will not rotate, and thus will not drive the fuse to rotate, resulting in the fuse being broken and flattened after being tightened. At the same time, the limit part and the anti-slip part can further enhance the stability of the anti-pressure part and avoid the rotation of the anti-pressure part.

[0045] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0046] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0047] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0048] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A gasket for a drop-out fuse, characterized in that: include, A protection unit (100) comprising a protection piece (101), an anti-pressure piece (102) arranged at the bottom of the protection piece (101), a connecting piece (103) arranged at the top of the anti-pressure piece (102), a limiting piece (104) fixedly connected to the anti-pressure piece (102), and an anti-slip piece (105) arranged inside the limiting piece (104).

2. The gasket for a drop-out fuse according to claim 1, characterized in that: The protective element (101) comprises a metal gasket (101a), an L-shaped cavity (101b) is provided inside the metal gasket (101a), and a group of first through holes (101c) is provided on the top of the metal gasket (101a).

3. The gasket for a drop-out fuse according to claim 2, characterized in that: The anti-pressure component (102) comprises an elastic rubber gasket (102a) arranged at the bottom of the metal gasket (101a), a groove (102b) is provided at the bottom of the elastic rubber gasket (102a), and a limiting groove (102c) is provided on one side of the groove (102b).

4. The gasket for a drop-out fuse according to claim 3, characterized in that: The connecting piece (103) is fixedly arranged on the top of the elastic rubber gasket (102a), the connecting piece (103) is L-shaped, and the connecting piece (103) is slidably installed inside the L-shaped cavity (101b).

5. The gasket for a drop-out fuse according to claim 4, characterized in that: The limiting member (104) comprises a sleeve (104a) arranged outside the elastic rubber gasket (102a), a mounting cavity (104b) is provided at one end of the sleeve (104a), and a second through hole (104c) is provided at one end of the mounting cavity (104b).

6. The gasket for a drop-out fuse according to claim 5, characterized in that: The anti-slip member (105) comprises a support rod (105a) passing through the inside of the second through hole (104c), a handle (105b) being fixedly provided at one end of the support rod (105a), a limit plate (105c) being fixedly installed on the outer side of one end of the support rod (105a) passing through the inside of the installation cavity (104b), a return spring (105d) being sleeved on the outer wall of the support rod (105a), one end of the return spring (105d) being fixedly installed on the inner wall of the installation cavity (104b), and the other end of the return spring (105d) being fixedly installed on the outer wall of the limit plate (105c), and one end of the support rod (105a) passing through the elastic rubber gasket (102a), and an anti-sliding block (105e) being fixedly installed on the one end of the support rod (105a) passing through the elastic rubber gasket (102a).

7. The gasket for a drop-out fuse according to claim 4, characterized in that: The first through hole (101c) is in communication with the L-shaped cavity (101b).

8. The gasket for a drop-out fuse according to claim 6, characterized in that: One side of the anti-sliding block (105e) is provided with anti-slip grooves, and the anti-slip grooves are used to increase friction.

9. The gasket for a drop-out fuse according to claim 6, characterized in that: The installation cavity (104b) is cylindrical, and the diameter of the limiting plate (105c) is the same as the diameter of the installation cavity (104b).

10. The gasket for a drop-out fuse according to any one of claims 2 to 9, characterized in that: The hardness of the connecting piece (103) is greater than that of the elastic rubber gasket (102a).

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