Operating handle of closed tubular fuse
By designing the disassembly, retract and rotating components of the closed tube fuse operating handle, the problem of electric shock during the removal of the core cover is solved, and safe and reliable operating methods are achieved.
Patent Information
- Application Number
- CN202421430365.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-21
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-06-21
AI Technical Summary
The existing closed tube fuses have a risk of electric shock during the removal of the core cover, which can easily cause injuries to workers and damage to equipment.
An operating handle for the closed tube fuse is designed, including disassembly and assembly components, retracting and revolving components. Through the cooperation of these components, safe disassembly of the core cap of the closed tube fuse is achieved to avoid direct contact with the circuit.
It effectively avoids the safety hazards of electric shock, scratched fingers and falling and damaged fuse core during operation, improves the safety and reliability of operation, and is suitable for closed tube fuses of different sizes.
Smart Images
Figure CN222883475U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fuses, in particular to an operating handle of a closed tube fuse. Background Art
[0002] The enclosed tube fuse is a common device used for circuit protection. It usually consists of a glass tube or ceramic tube wrapped with a fuse made of metal wire or lead wire. When the current in the circuit exceeds the rated current of the fuse, the fuse will be heated and melted, thereby cutting off the circuit. The advantage of this design is that the sparks and fragments generated when the fuse melts will be enclosed by the tube shell, thereby reducing the possibility of causing fire or other dangers; at the same time, the enclosed tube fuse can also prevent external objects from contacting the inside of the fuse, improving safety. Enclosed tube fuses are commonly used in low-voltage circuits, such as household circuits, automotive circuits, and industrial equipment. They are a reliable and cost-effective circuit protection device that can effectively protect circuits from damage caused by faults such as overloads and short circuits.
[0003] When removing the core removal cover of the enclosed tube fuse, the main operation method is that the operator directly operates without the help of auxiliary tools. This method has serious safety hazards and the risk of electric shock, which can easily cause injuries to operators and damage to equipment. Utility Model Content
[0004] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.
[0005] In view of the above-mentioned problem of risk of electric shock, the present utility model is proposed.
[0006] Therefore, the utility model aims to provide an operating handle for a closed tube fuse.
[0007] In order to solve the above technical problems, the utility model provides the following technical solutions: A closed tube fuse operating handle, comprising, a disassembly assembly, including a rectangular block, a connecting block and a grip arranged on the rectangular block, a mobile frame symmetrically arranged on the connecting block, and a grab hook used in conjunction with the mobile frame;
[0008] The retractable assembly includes a placement slot provided on the mobile frame, a concave frame used in conjunction with the mobile frame, a rotating plate provided between the placement slot and the concave frame, and a traction member used in conjunction with the concave frame;
[0009] The rotating assembly includes a magnet arranged on the movable frame, a mounting groove arranged on one side of the connecting block, a slide groove symmetrically arranged in the mounting groove, a lifting plate arranged between the two slide grooves, and a limiting member and a supporting member used in conjunction with the lifting plate.
[0010] As a preferred solution of the closed tube fuse operating handle of the utility model, wherein: the length of the connecting block is greater than the rectangular block, the shape of the grab hook is a bent finger-shaped hook, and the surfaces of the disassembly and assembly assembly, the retractable assembly and the rotating assembly are all provided with an insulating layer.
[0011] As a preferred solution of the closed tube fuse operating handle of the utility model, the traction member includes support plates symmetrically arranged in the connecting block, pull rods arranged between the support plates, a fixing plate arranged on the pull rods, and a first spring arranged between the fixing plate and one of the support plates.
[0012] As a preferred solution of the closed tube fuse operating handle of the utility model, one end of the pull rod is fixedly mounted on the concave frame, a groove is provided on the side of the rectangular block away from the connecting block, and the other end of the pull rod passes through the connecting block and the rectangular block, and is located between the grooves.
[0013] As a preferred solution of the operating handle of the enclosed tube fuse of the utility model, wherein: a cross bar is rotatably mounted on one end of the pull rod located in the groove, and a handle is fixedly connected to the surface of the cross bar.
[0014] As a preferred solution of the closed tube fuse operating handle of the utility model, the limiting member includes a movable groove symmetrically opened on the top of the lifting plate, a square block and a second spring arranged in the movable groove, a rotating shaft arranged on the grab hook, and a square groove opened at the bottom of the rotating shaft.
[0015] As a preferred solution of the closed tube fuse operating handle of the utility model, the two movable grooves have the same size, the second spring is located between the square block and the movable groove, and the square groove has the same size as the square block.
[0016] As a preferred solution of the closed tube fuse operating handle of the utility model, the support member includes a rectangular groove symmetrically opened at the bottom of the connecting block, a push rod arranged between the rectangular groove and the mounting groove, a first clamping groove opened at the top of the push rod, a clamping block and a third spring arranged in the mounting groove, and a second clamping groove symmetrically opened at the top of the lifting plate.
[0017] As a preferred solution of the closed tube fuse operating handle of the utility model, the two rectangular grooves have the same size, the push rod is in an "L" shape, and one side of the top end of the push rod contacts the bottom end of the lifting plate.
[0018] As a preferred solution of the closed tube fuse operating handle of the utility model, the third spring is located between the clamping block and the mounting slot, the first clamping slot and the second clamping slot are in the same straight line, and the first clamping slot, the second clamping slot and the clamping block have the same size.
[0019] The beneficial effects of the utility model are as follows: the utility model realizes an operation method different from the traditional one by arranging a disassembly and assembly component, thereby avoiding direct contact with the core extraction cover of the closed tube fuse, thereby effectively avoiding the safety hazards of electric shock, finger scratches and fuse core falling and damage during operation; by arranging a retractable component and a traction part, the distance between the two grabbing hooks can be adjusted, so that the device can be applied to different closed tube fuses; by arranging a rotating component, a limit part and a supporting part, the two grabbing hooks can be rotated, so that the core extraction cover of the closed tube fuse can also be rotated and screwed out between the two grabbing hooks, which increases the use scenarios of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0021] Figure 1 The figure is an overall schematic diagram of an operating handle of a closed tube fuse.
[0022] Figure 2 for Figure 1 Schematic diagram of the structure from another perspective.
[0023] Figure 3 It is a schematic diagram of the cross-sectional structure of the connecting block.
[0024] Figure 4 for Figure 3 Schematic diagram of the structure from another perspective.
[0025] Figure 5 It is a schematic diagram of the structure of the limiter.
[0026] Figure 6 A schematic diagram of the structure of the support. DETAILED DESCRIPTION
[0027] In order to make the above-mentioned purposes, 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.
[0028] 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.
[0029] 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.
[0030] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.
[0031] Example 1
[0032] Reference Figure 1 - Figure 2 , is the first embodiment of the utility model, which provides an operating handle for a closed tube fuse, including, a disassembly assembly 100, including a rectangular block 101, a connecting block 102 and a grip 103 arranged on the rectangular block 101, the connecting block 102 is fixedly mounted on the rectangular block 101, a mobile frame 104 is symmetrically arranged on the connecting block 102, the mobile frame 104 is slidably mounted on both sides of the connecting block 102, and a grab hook 105 used in conjunction with the mobile frame 104, and the core removal cover of the closed tube fuse is disassembled by the grab hook 105;
[0033] The retractable assembly 200 includes a placement slot 201 provided on the mobile frame 104, a concave frame 202 used in conjunction with the mobile frame 104, a rotating plate 203 rotatably installed between the placement slot 201 and the concave frame 202, and a traction member 204 used in conjunction with the concave frame 202, and the concave frame 202 is pulled to move by the traction member 204;
[0034] The rotating assembly 300 includes a magnet 301 fixedly mounted on the movable frame 104, a mounting groove opened on one side of the connecting block 102, a slide groove 302 symmetrically opened in the mounting groove, the slide groove 302 is in an "L" shape, a lifting plate 303 slidably mounted between the two slide grooves 302, and a limit member 304 and a support member 305 used in conjunction with the lifting plate 303. The limit member 304 prevents the grab hook 105 from rotating, and the support member 305 can support the lifting plate 303.
[0035] Specifically, the length of the connecting block 102 is greater than that of the rectangular block 101 , the shape of the grab hook 105 is a hook shaped like a bent finger, and the surfaces of the disassembly assembly 100 , the retractable assembly 200 and the rotating assembly 300 are all provided with an insulating layer.
[0036] Operation process: When in use, the staff holds the handle 103, hooks the grab hook 105 on the core removal cover of the closed tube fuse, and pulls it outward with a little force to remove the core removal cover of the closed tube fuse. In addition, the surfaces of all parts are provided with an insulating layer to ensure that the staff will not be at risk of electric shock during operation.
[0037] Example 2
[0038] Reference Figure 1 - Figure 3 , which is the second embodiment of the utility model. This embodiment is different from the first embodiment in that the traction member 204 includes support plates 204a symmetrically installed in the connecting block 102, a pull rod 204b inserted between the support plates 204a, a fixing plate 204c fixedly installed on the pull rod 204b, and a first spring 204d arranged between the fixing plate 204c and one of the support plates 204a, and the pull rod 204b can be reset by the first spring 204d.
[0039] Specifically, one end of the pull rod 204b is fixedly mounted on the concave frame 202, and the pull rod 204b will also pull the concave frame 202 to move when it moves. A groove is provided on the side of the rectangular block 101 away from the connecting block 102, and the other end of the pull rod 204b passes through the connecting block 102 and the rectangular block 101, and this end is located between the grooves.
[0040] Furthermore, a cross bar is rotatably mounted on one end of the pull rod 204b located in the groove, and a handle is fixedly connected to the surface of the cross bar, and the pull rod 204b can be pulled by the handle.
[0041] The rest of the structure is the same as that of Example 1.
[0042] Operation process: if the spacing between the two grab hooks 105 does not match the core extraction cover of the closed tube fuse, while the staff holds the grip 103, the staff rotates the handle through the cross bar and pulls it outwards with the index finger or middle finger, and the handle will drive the pull rod 204b to be pulled outwards. At this time, the pull rod 204b drives the concave frame 202 and the fixed plate 204c to move synchronously, and the first spring 204d is squeezed through the fixed plate 204c, and the concave frame 202 will also pull the rotating plate 203 when moving, so that the rotating plate 203 pulls the moving frames 104 on both sides to drive the grab hooks 105 to move toward the opposite surface when rotating, and moves to a suitable position according to the size of the core extraction cover for operation. After the core extraction cover is removed, the index finger or middle finger releases the handle, and the fixed plate 204c is pushed by the reaction force of the first spring 204d, so that the pull rod 204b drives the concave frame 202 to reset, and at the same time, the grab hook 105 is pushed to reset through the rotating plate 203.
[0043] Example 3
[0044] Reference Figure 4 - Figure 6 , which is the third embodiment of the utility model. This embodiment is different from the above embodiments in that:
[0045] Specifically, the limiting member 304 includes a movable groove symmetrically opened on the top of the lifting plate 303, a square block 304a and a second spring 304b arranged in the movable groove, the square block 304a is slidably installed in the movable groove, the rotating shaft is fixedly installed on the grab hook 105, the rotating shaft is installed on the movable frame 104, and a square groove 304c is opened at the bottom of the rotating shaft, the square groove 304c and the square block 304a are engaged with each other, when the grab hook 105 moves, the square block 304a will also follow the movement through the square groove 304c.
[0046] Furthermore, the two movable grooves have the same size, the second spring 304b is located between the square block 304a and the movable groove, and the square block 304a can be reset by the second spring 304b, and the square groove 304c has the same size as the square block 304a.
[0047] Furthermore, the support member 305 includes a rectangular groove 305a symmetrically opened at the bottom of the connecting block 102, a push rod 305b inserted between the rectangular groove 305a and the mounting groove, a first clamping groove 305c opened at the top of the push rod 305b, a clamping block 305d and a third spring 305e arranged in the mounting groove, the clamping block 305d and the third spring 305e are both arranged at the top of the mounting groove, and a second clamping groove 305f symmetrically opened at the top of the lifting plate 303.
[0048] Furthermore, the rectangular grooves 305a have the same size, the push rods 305b are in an "L" shape, one side of the top end of the push rods 305b contacts the bottom end of the lifting plate 303, and the lifting plate 303 is supported by the two push rods 305b.
[0049] Furthermore, the third spring 305e is located between the block 305d and the mounting slot, and the block 305d can be reset by the third spring 305e. The first slot 305c and the second slot 305f are in the same straight line, and the first slot 305c, the second slot 305f and the block 305d have the same size.
[0050] The rest of the structure is the same as that of Example 2.
[0051] Operation process: when the core cover needs to be rotated and screwed out, the push rod 305b is pulled backward, and the block 305d is squeezed to move toward the depth of the installation groove, and the third spring 305e is squeezed. After the push rod 305b is no longer in contact with the lifting plate 303, the block 305d is reset by the third spring 305e, and the lifting plate 303 is pushed downward, so that the square groove 304c and the square block 304a are no longer engaged. After the lifting plate 303 contacts the bottom end of the installation groove, the lifting plate 303 is pushed toward the inside of the installation groove. At this time, the lifting plate 303 contacts and squeezes the block 305d. It is moved toward the depth of the installation groove again. After the lifting plate 303 is merged with the installation groove, the reaction force of the third spring 305e causes the block 305d to reset and engage with the second slot 305f, and the lifting plate 303 is fixed. At this time, the grab hook 105 is rotated 90 degrees through the rotating shaft. At this time, the magnet 301 is used to adsorb and fix one side of the grab hook 105, and then the traction member 204 is used to make the two grab hooks 105 move toward the opposite side and fit with the surface of the core cover. At this time, the staff can rotate the device again to rotate and screw out the core cover, and then repeat the above steps to reset the components.
[0052] 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 ratio of various elements, and parameter values (e.g., temperature, pressure, etc.), installation 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 utility model. 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 the execution function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to a specific embodiment, but extends to various modifications that still fall within the scope of the appended claims.
[0053] Additionally, in order to provide a concise description of example 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.
[0054] 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.
[0055] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.
Claims
1. A closed tube fuse operating handle, characterized in that: include, The disassembly assembly (100) comprises a rectangular block (101), a connecting block (102) and a handle (103) arranged on the rectangular block (101), a moving frame (104) symmetrically arranged on the connecting block (102), and a grab hook (105) used in conjunction with the moving frame (104); The storage assembly (200) comprises a placement groove (201) provided on the mobile frame (104), a concave frame (202) used in conjunction with the mobile frame (104), a rotating plate (203) provided between the placement groove (201) and the concave frame (202), and a traction member (204) used in conjunction with the concave frame (202); The rotating assembly (300) comprises a magnet (301) arranged on the movable frame (104), a mounting groove provided on one side of the connecting block (102), a slide groove (302) symmetrically provided in the mounting groove, a lifting plate (303) provided between the two slide grooves (302), and a limiting member (304) and a supporting member (305) used in conjunction with the lifting plate (303).
2. The closed tube fuse operating handle according to claim 1, characterized in that: The length of the connecting block (102) is greater than that of the rectangular block (101); the shape of the grab hook (105) is a hook shaped like a bent finger; and the surfaces of the disassembly assembly (100), the retractable assembly (200) and the rotating assembly (300) are all provided with an insulating layer.
3. The closed tube fuse operating handle according to claim 2, characterized in that: The traction member (204) comprises support plates (204a) symmetrically arranged in the connection block (102), pull rods (204b) arranged between the support plates (204a), a fixing plate (204c) arranged on the pull rods (204b), and a first spring (204d) arranged between the fixing plate (204c) and one of the support plates (204a).
4. The closed tube fuse operating handle according to claim 3, characterized in that: One end of the pull rod (204b) is fixedly mounted on the concave frame (202), a groove is provided on the side of the rectangular block (101) away from the connecting block (102), and the other end of the pull rod (204b) passes through the connecting block (102) and the rectangular block (101), and is located between the grooves.
5. The closed tube fuse operating handle according to claim 4, characterized in that: A cross bar is rotatably mounted on one end of the pull rod (204b) located in the groove, and a handle is fixedly connected to the surface of the cross bar.
6. The closed tube fuse operating handle according to claim 1 or 5, characterized in that: The limiting member (304) comprises a movable groove symmetrically opened on the top of the lifting plate (303), a square block (304a) and a second spring (304b) arranged in the movable groove, a rotating shaft arranged on the grab hook (105), and a square groove (304c) opened at the bottom of the rotating shaft.
7. The closed tube fuse operating handle according to claim 6, characterized in that: The two movable grooves have the same size, the second spring (304b) is located between the square block (304a) and the movable groove, and the square groove (304c) has the same size as the square block (304a).
8. The closed tube fuse operating handle according to claim 1 or 7, characterized in that: The support member (305) comprises a rectangular groove (305a) symmetrically opened at the bottom of the connecting block (102), a push rod (305b) arranged between the rectangular groove (305a) and the mounting groove, a first clamping groove (305c) opened at the top of the push rod (305b), a clamping block (305d) and a third spring (305e) arranged in the mounting groove, and a second clamping groove (305f) symmetrically opened at the top of the lifting plate (303).
9. The closed tube fuse operating handle according to claim 8, characterized in that: The two rectangular grooves (305a) have the same size, the push rod (305b) is in an "L" shape, and one side of the top end of the push rod (305b) contacts the bottom end of the lifting plate (303).
10. The closed tube fuse operating handle according to claim 9, characterized in that: The third spring (305e) is located between the clamping block (305d) and the installation slot, the first clamping slot (305c) and the second clamping slot (305f) are in the same straight line, and the first clamping slot (305c), the second clamping slot (305f) and the clamping block (305d) have the same size.