A fuse convenient to disassemble

Abstract

The utility model discloses a kind of fuses convenient to disassemble, comprising: base;Base top surface and one side end are equipped with sliding slot one;Sliding block one;Sliding block one is integrally connected with base top surface;Clamp block;Clamp block bottom surface is equipped with slot one;Clamp block is integrally connected with base top surface, and another side end close to base;Shell;Shell top surface is open, both sides are respectively equipped with through hole one, outer bottom surface is equipped with sliding slot two;Sliding block two;Sliding block two is integrally connected with shell outer bottom surface, and is slidably connected with base by sliding slot one;Plug block;Plug block is integrally connected with shell, and is inserted with clamp block by slot one;Short-circuit protection component;Short-circuit protection component is arranged in shell;Cover plate;Cover plate is slidably connected with shell;By setting sliding block two and sliding slot one sliding connection, sliding block one and sliding slot two clamping and clamp block and plug block insertion, base and shell can be fixed or separated easily without the aid of tool, and then the shell inside melt is conveniently overhauled or replaced, easy to operate.

Description

Technical Field

[0001] This utility model relates to the field of fuse technology, and in particular to a fuse that is easy to install and disassemble. Background Technology

[0002] A fuse, also known as a circuit breaker, is a core component in an electrical system used for overload and short-circuit protection. Its core principle is to use the heat generated by the current passing through the fusible element to melt the fusible element when there is an overload or short circuit, thereby cutting off the circuit and protecting electrical equipment and lines from damage.

[0003] Existing fuses, such as CN223450830U, disclose a high-reliability bolt-type knife fuse, particularly relating to the field of fuse technology. This includes a base and a fuse body. In use, the fuse body is connected to a stud through a sleeve hole. The wire to be connected is then wound around the outside of the stud, and a nut is threaded onto the stud and tightened to press the wire end, causing the conical spike to insert between the copper wires. This prevents loosening and ensures a better connection. After tightening the nut, the insert on the cap is inserted into a socket at one end of the stud. During the process, the pin is inserted into the pin hole at the top of the nut. The inner wall of the pin matches the inner wall of the insertion hole, which is rectangular in design, preventing the nut from rotating. This locks the nut in place, preventing loosening and ensuring a better connection. After connection, the cover is connected to the base via clips and slots. In existing technology, the base and housing are connected by clips. After repeated use, the clips are prone to deformation, resulting in insufficient stability. Furthermore, due to the small slot design, external tools are needed to pry the clips apart when separating the base from the housing, making the operation too cumbersome.

[0004] Therefore, those skilled in the art urgently need to provide a fuse that is easier to disassemble and assemble. Utility Model Content

[0005] The purpose of this invention is to provide a fuse that is easy to install and disassemble, so as to solve the problems existing in the prior art.

[0006] A fuse designed for easy assembly and disassembly includes: a base; a sliding groove on the top surface and one side of the base; a slider with an inverted U-shaped vertical cross-section; the slider is integrally connected to the top surface of the base and located near the center of the base; a locking block; a slot on the bottom surface of the locking block; the locking block is integrally connected to the top surface of the base and located near the other side of the base; a housing; the top surface of the housing is open, and through holes for connecting wires are provided on both sides, and a sliding groove is provided on the outer bottom surface for the slider to engage after sliding; a second slider; the second slider is integrally connected to the outer bottom surface of the housing and slidably connected to the base via the sliding groove; an insert; the insert is integrally connected to the housing and is inserted into the locking block via the slot; a short-circuit protection assembly; the short-circuit protection assembly is disposed inside the housing; and a cover plate for covering the opening on the top surface of the housing; the cover plate is slidably connected to the housing.

[0007] Preferably, the base has a horizontally formed storage slot that communicates with the first sliding groove and the outer side of the base; a locking mechanism is provided in the storage slot; the storage slot includes, from the inside out, a first placement slot, a second placement slot, and a third placement slot; the inner diameters of the first placement slot and the third placement slot are equal, and the inner diameter of the first placement slot is smaller than that of the second placement slot; a second slot is formed on the side of the second slider; after the end face of the second slider away from the second sliding groove slides to contact the end face of the first sliding groove near the first slider, the second slot corresponds to the first placement slot; the locking mechanism engages with the second slider through the second slot.

[0008] Preferably, the locking mechanism includes a locking post, a first ring, a second ring, and a spring; the first ring and the second ring are fixedly connected to the outer side of the locking post; the first ring is located near one end of the locking post, and the second ring is located near the middle of the locking post; the first ring and the second ring are disposed within the second placement groove; a spring is disposed between the end face of the second ring away from the first ring and the end face of the second placement groove away from the first placement groove; one end of the locking post is located on the outer side of the base, and the other end is locked to the second slider through the second slot.

[0009] Preferably, the end face of the second slider facing the second groove is fixedly connected to an insert plate; the insert plate is flush with the bottom surface of the second slider; a slot three for inserting the insert plate is provided in the first groove facing the first slider, and the bottom surface of the slot three is flush with the bottom surface of the first groove.

[0010] Preferably, the short-circuit protection assembly includes an insulating base, a conductive plate, a conductive spring clip, and a cylindrical fuse core; two insulating bases are provided; the two insulating bases are respectively fixed to the inner bottom surface of the housing and are respectively close to one of the through holes; the conductive plate is fixed to the top surface of the insulating base, and one end passes through the through hole and is located on the outside of the housing; a conductive spring clip is fixed to the top surface of the conductive plate; the conductive spring clip engages with the conductive part on the outside of the cylindrical fuse core.

[0011] Preferably, a second through hole is provided on one side of the housing for the cover plate to pass through; the second through hole is located at the upper end of the first through hole and close to the top of the housing; a first U-shaped support frame and a second U-shaped support frame are fixedly connected inside the housing; the bottom surface of the first U-shaped support frame is flush with the top surface inside the second through hole, and the top surface of the second U-shaped support frame is flush with the bottom surface inside the second through hole; the first U-shaped support frame and the second U-shaped support frame are slidably connected to the cover plate respectively.

[0012] Preferably, multiple mounting holes for fixing are provided at both ends near the base.

[0013] Preferably, an arc-shaped pressure plate is fixed on the top surface of the conductive plate, and a space for accommodating wires is formed between the arc-shaped pressure plate and the conductive plate; a threaded hole is opened on the top surface of the arc-shaped pressure plate, and a bolt is threadedly connected through the threaded hole.

[0014] Compared with the prior art, this utility model provides a fuse that is easy to install and disassemble, and has the following beneficial effects: By setting the slider two to slide and the slide groove one to slide and the slider one to snap and the snap block to insert, the base and the housing can be easily fixed or separated without the aid of tools, which facilitates the inspection or replacement of the melt inside the housing. The operation is simple. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the upright structure of the shell of this utility model; Figure 2 This is a schematic diagram of the inverted shell structure of this utility model; Figure 3 This is a schematic diagram of the base structure of this utility model; Figure 4This is a schematic diagram of the storage trough structure of this utility model; Figure 5 This is a schematic diagram of the snap-fit ​​mechanism of this utility model; Figure 6 This is a side view of the base of this utility model; Figure 7 This is a schematic diagram of the short-circuit protection component of this utility model.

[0017] Wherein: 1 is the base; 101 is the slide groove one; 102 is the storage groove; 1021 is the placement groove one; 1022 is the placement groove two; 1023 is the placement groove three; 103 is the slot three; 104 is the mounting hole; 2 is the slider one; 3 is the locking block; 301 is the slot one; 4 is the housing; 401 is the through hole one; 402 is the slide groove two; 5 is the slider two; 501 is the slot two; 6 is the insert block; 7 is the short circuit protection component; 701 is the insulating base; 702 is the conductive plate; 703 is the conductive spring clip; 704 is the cylindrical fusion core; 8 is the cover plate; 9 is the snap-fit ​​mechanism; 901 is the snap-fit ​​post; 902 is the circular ring one; 903 is the circular ring two; 904 is the spring; 10 is the insert plate; 11 is the U-shaped support frame one; 12 is the U-shaped support frame two; 13 is the arc-shaped pressure plate; 14 is the bolt. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] like Figure 1-3As shown, a fuse that is easy to assemble and disassemble includes: a base 1; a groove 101 is provided on the top surface and one side of the base 1; a slider 2 with an inverted U-shaped vertical cross-section; the slider 2 is integrally connected to the top surface of the base 1 and is located near the middle of the base 1; a locking block 3; a slot 301 is provided on the bottom surface of the locking block 3; the locking block 3 is integrally connected to the top surface of the base 1 and is located near the other side of the base 1; a housing 4; the top surface of the housing 4 is open, and the two sides are respectively provided with connection... The circuit has a through hole 401, and a groove 402 is provided on the outer bottom surface for the slider 2 to slide and engage. The slider 2 is 5. The slider 2 is integrally connected to the outer bottom surface of the housing 4 and is slidably connected to the base 1 through the groove 101. The plug 6 is integrally connected to the housing 4 and is inserted into the locking block 3 through the slot 301. The short circuit protection component 7 is disposed inside the housing 4. The cover plate 8 is used to cover the opening on the top surface of the housing 4. The cover plate 8 is slidably connected to the housing 4.

[0021] In this utility model, slot 301 is connected to both sides of the card block 3; through hole 401 is located in the middle of the side of the housing 4; as shown Figure 3 As shown, slider 12 can be divided into an upper rectangular plate and a lower rectangular plate. The length and height of the upper rectangular plate are equal to the length and height of the lower rectangular plate, and the width of the upper rectangular plate is greater than the width of the lower rectangular plate. The lower rectangular plate is integrally connected to the middle of the bottom surface of the upper rectangular plate, and the bottom surface of the lower rectangular plate is integrally connected to the top surface of the base 1. Figure 2 As shown, the slide groove 402 can be divided into an upper convex groove and a lower rectangular groove. The lower rectangular groove can accommodate two upper rectangular plates laterally, while the upper convex groove can accommodate an upper rectangular plate on its left and a lower rectangular plate on its right. In other words, the slide groove can accommodate... Figure 2 After the housing 4 is flipped and inverted, slider 2 5 is located inside slide groove 101 and in contact with both sides inside slide groove 101. Slider 1 2 is located on the left side of slide groove 2 402. The top surface of the base 1 is in contact with the bottom surface of the housing 4. At this time, the... Figure 3 After the housing 4 is slidable to the right, the slider 2 is engaged with the right side of the groove 402, and the insert 6 is inserted into the slot 301. By setting the slider 2 5 to slide and the groove 101 to prevent the overall structure from shaking, the slider 2 to be engaged and fixed with the groove 402, and the insert block 3 to be inserted and fixed, the base 1 and the housing 4 can be easily fixed or separated without the aid of tools, which facilitates the inspection or replacement of the melt inside the housing 4. The operation is simple.

[0022] like Figure 3-4As shown, the base 1 has a horizontally opened storage slot 102 that communicates with the slide groove 101 and the outside of the base 1; the storage slot 102 is provided with a snap-fit ​​mechanism 9; the storage slot 102 includes, from the inside to the outside, a placement slot 1021, a placement slot 2 1022 and a placement slot 3 1023; the inner diameters of the placement slot 1021 and the placement slot 3 1023 are equal, and the inner diameter of the placement slot 1021 is smaller than that of the placement slot 2 1022; the side of the slider 2 5 has a slot 2 501; after the end face of the slider 2 5 away from the slide groove 2 402 slides to contact the end face of the slide groove 101 near the slider 2, the slot 2 501 corresponds to the placement slot 1021; the snap-fit ​​mechanism 9 snaps into the slider 2 5 through the slot 2 501.

[0023] like Figure 2-5 As shown, the locking mechanism 9 includes a locking post 901, a first ring 902, a second ring 903, and a spring 904; the first ring 902 and the second ring 903 are fixedly connected to the outer side of the locking post 901; the first ring 902 is close to one end of the locking post 901, and the second ring 903 is close to the middle position of the locking post 901; the first ring 902 and the second ring 903 are disposed in the second placement groove 1022; the spring 904 is disposed between the end face of the second ring 903 away from the first ring 902 and the end face of the second placement groove 1022 away from the first placement groove 1021; one end of the locking post 901 is located on the outer side of the base 1, and the other end is locked to the second slider 5 through the second slot 501.

[0024] In this utility model, both a first ring 902 and a second ring 903 are provided to ensure structural stability when the locking post 901 moves. The cross-sections of the first placement groove 1021, the second placement groove 1022, and the third placement groove 1023 are all circular. The outer diameters of the first ring 902 and the second ring 903 are equal and they are in contact with the inner surface of the second placement groove 1022. In use, the locking post 901 is pulled outward toward the base 1. At this time, one end of the locking post 901 located in the first sliding groove 101 is pulled into the first placement groove 1021. After the first slider 2 is engaged with the second sliding groove 402, the locking post 901 is released. At this time, the spring 904 rebounds, causing one end of the locking post 901 located in the first placement groove 1021 to insert into the second slot 501 and engage with the second slider 5.

[0025] like Figure 2 , Figure 3 as well as Figure 6 As shown, a plug plate 10 is fixedly connected to the end face of slider 2 5 facing the direction of slide groove 2 402; the plug plate 10 is flush with the bottom surface of slider 2 5; a slot 3 103 for plugging the plug plate 10 is opened in the end face of slide groove 1 101 facing slider 2, and the bottom surface of slot 3 103 is flush with the bottom surface of slide groove 1 101.

[0026] In this invention, after the second slider 5 slides in the first groove 101, the insert plate 10 is inserted into the third slot 103 to improve the overall stability of the structure.

[0027] like Figure 1 and 7 As shown, the short-circuit protection assembly 7 includes an insulating base 701, a conductive plate 702, a conductive spring clip 703, and a cylindrical fuse 704. Two insulating bases 701 are provided. The two insulating bases 701 are respectively fixed to the inner bottom surface of the housing 4 and are respectively close to a through hole 401. The conductive plate 702 is fixed to the top surface of the insulating base 701, and one end passes through the through hole 401 and is located on the outside of the housing 4. The conductive spring clip 703 is fixed to the top surface of the conductive plate 702. The conductive spring clip 703 is engaged with the conductive part on the outside of the cylindrical fuse 704.

[0028] like Figure 1 As shown, a through hole 2 is provided on one side of the housing 4 for the cover plate 8 to pass through; the through hole 2 is located at the upper end of the through hole 1 401 and is close to the top of the housing 4; a U-shaped support frame 1 11 and a U-shaped support frame 2 12 are fixedly connected inside the housing 4; the bottom surface of the U-shaped support frame 1 11 is flush with the top surface inside the through hole 2, and the top surface of the U-shaped support frame 2 12 is flush with the bottom surface inside the through hole 2; the U-shaped support frame 1 11 and the U-shaped support frame 2 12 are slidably connected to the cover plate 8 respectively.

[0029] like Figure 3 As shown, multiple mounting holes 104 for fixing are provided at both ends near the base 1.

[0030] like Figure 7 As shown, an arc-shaped pressure plate 13 is fixed on the top surface of the conductive plate 702, and a space for accommodating wires is formed between the arc-shaped pressure plate 13 and the conductive plate 702; a threaded hole is opened on the top surface of the arc-shaped pressure plate 13, and a bolt 14 is threadedly connected through the threaded hole.

[0031] In this utility model, after the base 1 is fixed in the preset position through the mounting hole 104, the condition of the short circuit protection component 7 can be checked by opening and closing the cover plate 8. Alternatively, the base 1 and the housing 4 can be separated and the housing 4 can be removed to facilitate the replacement of the cylindrical fuse 704. At the same time, the cylindrical fuse 704 is engaged with the conductive spring clip 703 to facilitate the removal of the cylindrical fuse 704.

[0032] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A fuse that is easy to install and disassemble, characterized in that, include: Base (1); The top surface and one side end of the base (1) are provided with a sliding groove (101); A slider 1 (2) with an inverted convex cross-section; the slider 1 (2) is integrally connected to the top surface of the base (1) and is located near the middle of the base (1); Card block (3); The bottom surface of the card block (3) is provided with a slot 1 (301); The card block (3) is integrally connected to the top surface of the base (1) and is close to the other side of the base (1); Housing (4); The top surface of the housing (4) is open, and through holes (401) for connecting lines are provided on both sides. The bottom surface is provided with a groove (402) for the slider (2) to be engaged after sliding. Slider 2 (5); The slider 2 (5) is integrally connected to the outer bottom surface of the housing (4), and is slidably connected to the base (1) through the sliding groove 1 (101); Insert (6); The insert (6) is integrally connected to the housing (4) and is inserted into the card block (3) through slot one (301); Short-circuit protection component (7); the short-circuit protection component (7) is disposed inside the housing (4); A cover plate (8) for covering the opening on the top surface of the housing (4); the cover plate (8) is slidably connected to the housing (4).

2. The fuse for easy disassembly and assembly according to claim 1, characterized in that: The base (1) has a horizontally opened storage slot (102) that communicates with the slide groove (101) and the outside of the base (1); a snap-fit ​​mechanism (9) is provided in the storage slot (102). The storage slot (102) includes, from the inside out, a first storage slot (1021), a second storage slot (1022), and a third storage slot (1023); the inner diameters of the first storage slot (1021) and the third storage slot (1023) are equal, and the inner diameter of the first storage slot (1021) is smaller than that of the second storage slot (1022); The second slider (5) has a slot (501) on its side; after the end face of the second slider (5) away from the second slide groove (402) slides to contact the end face of the first slide groove (101) near the first slider (2), the slot (501) corresponds to the placement groove (1021). The locking mechanism (9) engages with the slider (5) via the slot (501).

3. The fuse for easy disassembly and assembly according to claim 2, characterized in that: The snap-fit ​​mechanism (9) includes a snap-fit ​​post (901), a first ring (902), a second ring (903), and a spring (904). The outer side of the snap-fit ​​post (901) is fixedly connected with a first ring (902) and a second ring (903); the first ring (902) is close to one end of the snap-fit ​​post (901), and the second ring (903) is close to the middle position of the snap-fit ​​post (901). The first ring (902) and the second ring (903) are disposed in the second placement groove (1022); a spring (904) is disposed between the end face of the second ring (903) away from the first ring (902) and the end face of the second placement groove (1022) away from the first placement groove (1021). One end of the snap-fit ​​post (901) is located on the outside of the base (1), and the other end is snapped into the slider (5) through the slot (501).

4. The fuse for easy disassembly and assembly according to claim 1, characterized in that: A plate (10) is fixedly connected to the end face of the slider two (5) facing the slide groove two (402); the plate (10) is flush with the bottom surface of the slider two (5); The slide groove (101) has a slot (103) for inserting the insert plate (10) on the end face facing the slider (2). The bottom surface of the slot (103) is flush with the bottom surface of the slide groove (101).

5. A fuse that is easy to install and disassemble according to claim 1, characterized in that: The short-circuit protection assembly (7) includes an insulating base (701), a conductive plate (702), a conductive spring clip (703), and a cylindrical fuse core (704). Two insulating bases (701) are provided; the two insulating bases (701) are respectively fixed to the inner bottom surface of the housing (4) and are respectively close to one of the through holes (401). The conductive plate (702) is fixed to the top surface of the insulating base (701), and one end passes through the through hole (401) and is located outside the housing (4); The top surface of the conductive plate (702) is fixed with a conductive spring clip (703). The conductive spring clip (703) engages with the conductive part on the outside of the cylindrical fused core (704).

6. The fuse for easy disassembly and assembly according to claim 1, characterized in that: The housing (4) has a through hole two for the cover plate (8) to pass through on one side; the through hole two is located at the upper end of the through hole one (401) and is close to the top of the housing (4); The shell (4) is fixedly connected with a square-shaped support frame one (11) and a square-shaped support frame two (12); the bottom surface of the square-shaped support frame one (11) is flush with the top surface of the through hole two, and the top surface of the square-shaped support frame two (12) is flush with the bottom surface of the through hole two. The first (11) and the second (12) of the square-shaped support frame are slidably connected to the cover plate (8).

7. A fuse that is easy to install and disassemble according to claim 1, characterized in that: Multiple mounting holes (104) for fixing are provided at both ends near the base (1).

8. A fuse that is easy to install and disassemble according to claim 5, characterized in that: An arc-shaped pressure plate (13) is fixed on the top surface of the conductive plate (702), and a space for accommodating wires is formed between the arc-shaped pressure plate (13) and the conductive plate (702); The top surface of the arc-shaped pressure plate (13) is provided with a threaded hole, and a bolt (14) is threadedly connected through the threaded hole.

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