Fast-assembly shell for fault arc detector

Abstract

The utility model provides a fast-assembly shell for a fault arc detector, which comprises a rear shell used for being installed on an installation positioning guide rail, an outer shell is fixedly installed on one side, far away from the positioning guide rail, of the rear shell, and a fault arc detector body is fixedly installed in the outer shell. And binding posts penetrating through the outer shell are fixed at the top and the bottom of the fault arc detector body. When the fault arc detector is disassembled, overhauled and replaced, after a binding post and an external wire are disassembled, the two connecting blocks slide reversely along the sliding grooves and are far away from each other through the adjusting mechanism, so that the distance between the two clamping blocks is larger than the height of the T-shaped positioning block, and the fault arc detector is pulled out from the positioning guide rail. When the fault arc detector is dismounted, other detectors adjacent to the fault arc detector do not need to be dismounted, so that the maintenance time is shortened, and the dismounting efficiency of the fault arc detector is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of arc detector equipment, specifically to a quick-release housing for a fault arc detector. Background Technology

[0002] An arc fault detector is an electrical safety device used to detect abnormal arc faults in electrical circuits and cut off the circuit. It is mainly used to prevent fire risks caused by arc faults. As a key device for electrical fire protection, arc fault detectors are usually densely installed in distribution boxes and arranged adjacent to circuit breakers, residual current devices, etc.

[0003] Traditional arc fault detectors typically have a slot on the back of their housing. During installation, a positioning rail is fixed inside the distribution box. The arc fault detector housing is then movably mounted on the positioning rail using the slot on its back, thus engaging with the rail and facilitating installation. While this method is convenient, the fact that arc fault detectors are usually installed adjacent to circuit breakers, residual current devices (RCDs), and other equipment on the positioning rail means that maintenance or replacement requires disassembling these adjacent devices to create operating space, increasing maintenance time and reducing disassembly efficiency.

[0004] Therefore, this application proposes a quick-release housing for a fault arc detector. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a quick-release housing for a fault arc detector, solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] Quick-release housing for fault arc detector, including:

[0008] The rear housing is used to be installed on the mounting and positioning guide rail. The outer shell is fixedly installed on the side of the rear housing away from the positioning guide rail. The fault arc detector body is fixedly installed inside the outer shell. The top and bottom of the fault arc detector body are fixed with terminals that penetrate the outer shell.

[0009] The rear housing has a cavity, and the rear housing has symmetrically opened sliding grooves that are connected to the cavity. The rear housing has symmetrically slidably mounted vertically on the rear housing and in the cavity. One end of each of the two connecting blocks movably passes through the two sliding grooves and extends to the outside of the rear housing. The positioning guide rail includes a positioning plate and a T-shaped positioning block installed on one side of the positioning plate.

[0010] Two snap-fit ​​blocks are symmetrically installed on one end of the two connecting blocks extending to the outside of the rear housing. When the rear housing contacts the T-shaped positioning block, both snap-fit ​​blocks can snap into the T-shaped positioning block.

[0011] The adjustment mechanism is mounted on the rear housing and connected to both connecting blocks. The adjustment mechanism is used to make the two connecting blocks slide in the opposite direction along the slide groove or stop sliding, so that the two locking blocks can engage or disengage with the T-shaped positioning block.

[0012] Furthermore: the adjustment mechanism includes a bidirectional threaded rod that is vertically rotatably mounted on the rear housing and located within the cavity, and the bidirectional threaded rod is threadedly connected to both connecting blocks.

[0013] Furthermore, an adjusting component connected to the bidirectional threaded rod is installed on the side of the rear housing away from the T-shaped positioning block, which is used to rotate the bidirectional threaded rod on the rear housing.

[0014] Furthermore: the adjusting component includes a rotating rod that is horizontally oriented and rotatably mounted on the rear housing. One end of the rotating rod extends into the cavity and is coaxially fixed to a driving bevel gear. A driven bevel gear that meshes with the driving bevel gear is coaxially fixed to a bidirectional threaded rod. The other end of the rotating rod is flush with the rear housing and has an internal hexagonal hole.

[0015] Furthermore, the ratio of the number of teeth of the driving bevel gear to that of the driven bevel gear is three to one.

[0016] Furthermore: the snap-fit ​​block includes a mounting block fixedly connected to the connecting block. The bottom of the mounting block and on the side of the T-shaped positioning block away from the rear housing have a mounting cavity. Vertical spring telescopic rods are symmetrically fixedly installed on the mounting block and in the mounting cavity. The bottom of the two spring telescopic rods is fixedly installed with a snap-fit ​​block that can be hidden in the mounting cavity. When the two spring telescopic rods are in their natural state, the bottom of the snap-fit ​​block extends to the bottom of the mounting block. When the rear housing contacts the T-shaped positioning block, the mounting block contacts the positioning plate, and the snap-fit ​​block can be inserted into the T-shaped positioning block and snap-fitted with the T-shaped positioning block on the opposite side of the positioning plate.

[0017] Furthermore: the card block extends to one end below the mounting block and is curved on the side away from the rear housing.

[0018] This invention provides a quick-release housing for a fault arc detector. Compared with the prior art, it has the following advantages:

[0019] 1. When disassembling, repairing, or replacing this faulty arc detector, after disconnecting the terminal block from the external wire, use the adjustment mechanism to make the two connecting blocks slide away from each other along the slide groove in opposite directions, so that the distance between the two locking blocks is greater than the height of the T-shaped positioning block. Pull the faulty arc detector outward from the positioning guide rail to disassemble the faulty arc detector. This eliminates the need to disassemble other detectors located adjacent to the faulty arc detector, reducing maintenance time and improving the disassembly efficiency of the faulty arc detector.

[0020] 2. By setting an adjusting component, it is easy to apply rotational force to the bidirectional threaded rod, thereby facilitating the adjustment of the positions of the two connecting blocks;

[0021] 3. Utilizing a special design where the ratio of the number of teeth between the driving bevel gear and the driven bevel gear is three to one, when the rotating rod drives the bidirectional threaded rod to rotate, one rotation of the rotating rod can drive the bidirectional threaded rod to rotate three times, thereby improving the efficiency of adjusting the position of the two locking blocks. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0023] Figure 1 A three-dimensional structural schematic diagram of the present invention is shown;

[0024] Figure 2 A schematic diagram of the installation structure of the connecting block of this utility model is shown;

[0025] Figure 3 This utility model illustrates Figure 2 Enlarged view of point A in the middle;

[0026] Figure 4 A schematic diagram of the installation structure of the adjustment mechanism of this utility model is shown;

[0027] Figure 5 This utility model illustrates Figure 4 Enlarged view of point B in the middle;

[0028] The figure shows: 1. Rear housing; 11. Outer housing; 12. Fault arc detector body; 121. Terminal block; 13. Cavity; 14. Slide groove; 2. Positioning guide rail; 21. Positioning plate; 22. T-shaped positioning block; 3. Connecting block; 4. Snap-fit ​​block; 41. Mounting block; 411. Mounting cavity; 42. Spring telescopic rod; 43. Snap-fit ​​block; 5. Adjustment mechanism; 51. Bidirectional threaded rod; 6. Adjusting component; 61. Rotating rod; 611. Internal hexagonal hole; 62. Driving bevel gear; 63. Driven bevel gear. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0030] Example 1

[0031] To address the technical problems in the background section, the following quick-release housing for a fault arc detector is provided:

[0032] Combination Figures 1-5 As shown, the quick-release housing for the fault arc detector provided by this utility model includes:

[0033] The rear housing 1 is used to be installed on the mounting and positioning guide rail 2. The outer shell 11 is fixedly installed on the side of the rear housing 1 away from the positioning guide rail 2. The fault arc detector body 12 is fixedly installed inside the outer shell 11. The fault arc detector body 12 is of model SG-AFDP. The top and bottom of the fault arc detector body 12 are fixed with terminals 121 that penetrate the outer shell 11.

[0034] The connecting block 3 has a cavity 13 inside the rear housing 1. The rear housing 1 has symmetrically opened sliding grooves 14 that are connected to the inside of the cavity 13. The connecting blocks 3 are symmetrically slidably installed in the vertical direction on the rear housing 1 and inside the cavity 13. One end of each connecting block 3 moves through the two sliding grooves 14 and extends to the outside of the rear housing 1. The positioning guide rail 2 includes a positioning plate 21 and a T-shaped positioning block 22 installed on one side of the positioning plate 21. Specifically, the top and bottom of the T-shaped positioning block 22 and the positioning plate 21 on the side close to each other form a slot.

[0035] There are two snap-fit ​​blocks 4. The two snap-fit ​​blocks 4 are symmetrically installed at one end of the two connecting blocks 3 extending to the outside of the rear housing 1. When the rear housing 1 is in contact with the T-shaped positioning block 22, both snap-fit ​​blocks 4 can snap into the T-shaped positioning block 22.

[0036] Adjustment mechanism 5 is installed on the rear housing 1 and connected to both connecting blocks 3. Adjustment mechanism 5 is used to make the two connecting blocks 3 slide in the opposite direction or stop sliding along the slide groove 14 so that the two locking blocks 4 can be locked or unlocked with the T-shaped positioning block 22.

[0037] During use, when installing this fault arc detector, the two connecting blocks 3 are slid away from each other along the slide groove 14 using the adjustment mechanism 5, so that the distance between the two locking blocks 4 is greater than the height of the T-shaped positioning block 22, causing the rear housing 1 to contact the T-shaped positioning block 22. At this time, the two connecting blocks 3 are slid closer together along the slide groove 14 using the adjustment mechanism 5, so that the ends of the two locking blocks 4 that are close to each other are respectively inserted into the slots formed at the top and bottom of the side of the T-shaped positioning block 22 and the positioning plate 21 that are close to each other, so that both locking blocks 4 are engaged with the T-shaped positioning block 22, thus realizing the detection of this fault arc detector. The installation effect of the faulty arc detector is as follows: Conversely, when disassembling, repairing, or replacing this faulty arc detector, disconnect the terminal 121 from the external wire, and then use the adjustment mechanism 5 to make the two connecting blocks 3 slide in opposite directions along the slide groove 14 to move away from each other, so that the distance between the two locking blocks 4 is greater than the height of the T-shaped positioning block 22. At this time, the faulty arc detector can be pulled out from the positioning guide rail 2, thus achieving the disassembly effect of this faulty arc detector. Therefore, it is not necessary to disassemble other detectors located adjacent to the faulty arc detector, reducing maintenance time and improving the disassembly efficiency of this faulty arc detector.

[0038] Example 2

[0039] like Figures 1-5 As shown, based on the above embodiments, this embodiment further provides the following:

[0040] In this embodiment, the adjustment mechanism 5 includes a bidirectional threaded rod 51 that is vertically mounted on the rear housing 1 and located in the cavity 13. The bidirectional threaded rod 51 is threadedly connected to both connecting blocks 3. In use, a rotational force is applied to the bidirectional threaded rod 51, thereby causing the two connecting blocks 3 to slide in opposite directions along the two sliding grooves 14 in the cavity 13. Since the bidirectional threaded rod 51 is threadedly connected to both connecting blocks 3 and has self-locking properties, the positions of the two connecting blocks 3 can be fixed without rotating the bidirectional threaded rod 51, making the operation simple.

[0041] In this embodiment, an adjusting member 6 connected to the bidirectional threaded rod 51 is installed on the side of the rear housing 1 away from the T-shaped positioning block 22. The adjusting member 6 is used to make the bidirectional threaded rod 51 rotate on the rear housing 1. By setting the adjusting member 6, it is convenient to apply a rotational force to the bidirectional threaded rod 51, thereby facilitating the adjustment of the positions of the two connecting blocks 3.

[0042] Example 3

[0043] like Figures 1-5 As shown, based on the above embodiments, this embodiment further provides the following:

[0044] In this embodiment, the adjusting component 6 includes a horizontally rotatable rod 61 mounted on the rear housing 1. One end of the rod 61 extends into the cavity 13 and is coaxially fixed to a driving bevel gear 62. A driven bevel gear 63, meshing with the driving bevel gear 62, is coaxially fixed to a bidirectional threaded rod 51. The other end of the rod 61 is flush with the rear housing 1 and has an internal hexagonal hole 611. When a rotational force is applied to the bidirectional threaded rod 51, an internal hexagonal wrench is used to insert its end into the internal hexagonal hole 611. The rod 61 is rotated on the rear housing 1 by the internal hexagonal wrench, thereby driving the driving bevel gear 62 to rotate around the rod 61. The driven bevel gear 63 then drives the bidirectional threaded rod 51 to rotate. The operation is simple. The design of the driving bevel gear 62 and the driven bevel gear 63 makes the rod 61 perpendicular to the bidirectional threaded rod 51, so that the end of the rod 61 faces the side of the rear housing 1 away from the positioning plate 21, which is convenient for the operator to operate.

[0045] In this embodiment, the ratio of the number of teeth of the driving bevel gear 62 to the number of teeth of the driven bevel gear 63 is three to one. With the special design of the ratio of the number of teeth of the driving bevel gear 62 to the number of teeth of the driven bevel gear 63 being three to one, when the rotating rod 61 drives the bidirectional threaded rod 51 to rotate, the rotating rod 61 can drive the bidirectional threaded rod 51 to rotate three times in one rotation, thereby improving the efficiency of adjusting the position of the two locking blocks 4.

[0046] In this embodiment, the snap-fit ​​block 4 includes a mounting block 41 fixedly connected to the connecting block 3. A mounting cavity 411 is formed at the bottom of the mounting block 41 on the side of the T-shaped positioning block 22 away from the rear housing 1. Vertically oriented spring telescopic rods 42 are symmetrically fixedly mounted on the mounting block 41 within the mounting cavity 411. A snap-fit ​​block 43, which can be hidden within the mounting cavity 411, is fixedly mounted at the bottom of the two spring telescopic rods 42. When the two spring telescopic rods 42 are in their natural state, the bottom of the snap-fit ​​block 43 extends below the mounting block 41. When the rear housing 1 contacts the T-shaped positioning block 22, the mounting block 41 contacts the positioning plate 21, and the snap-fit ​​block 43 engages with the T-shaped positioning block 22 on the opposite side of the positioning plate 21. The snap-fit ​​block 43 extends to the lower end of the mounting block 41 and is arc-shaped on the side away from the rear housing 1. Through the design of the spring telescopic rods 42 and the snap-fit ​​block 43, during the installation of this fault arc detector, the two snap-fit ​​blocks 43 engage with the T-shaped positioning block 22. When the positioning block 22 contacts, a pushing force is applied to the outer housing 11, causing the rear housing 1 to move closer to the positioning plate 21. When the locking block 43 contacts the T-shaped positioning block 22, the arc surface on the locking block 43 contacts the T-shaped positioning block 22. At this time, when the rear housing 1 moves closer to the positioning plate 21, the two locking blocks 43 can slide along the spring telescopic rod 42 into the two mounting cavities 411 respectively. When the rear housing 1 contacts the T-shaped positioning block 22, the mounting block 41 contacts the positioning plate 21. At this time, the two spring telescopic rods 42 return to their natural state, thereby pushing the two locking blocks 43 to slide along the spring telescopic rod 42 outwards from the two mounting cavities 411 respectively, so that the two locking blocks 43 are respectively inserted into the opposite side of the T-shaped positioning block 22 and the positioning plate 21. Thus, both locking blocks 43 can be locked with the T-shaped positioning block 22, achieving the installation effect of this fault arc detector. It is not necessary to rotate the rotating rod 61 to adjust the position of the two locking blocks 4, further facilitating the installation of this fault arc detector.

[0047] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0048] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A quick mount housing for a fault arc detector, characterized by: The utility model relates to a fault arc detector, including: A rear shell is used for being installed on a mounting positioning guide rail, an outer shell is fixedly installed on the side of the rear shell away from the positioning guide rail, a fault arc detector body is fixedly installed in the outer shell, and terminal posts penetrating through the outer shell are fixedly installed on the top and bottom of the fault arc detector body; A connecting block is symmetrically slidably installed in the cavity in the vertical direction, one end of the two connecting blocks respectively movably penetrates through the two sliding grooves and extends to the outside of the rear shell, and the positioning guide rail comprises a positioning plate and a T-shaped positioning block mounted on one side of the positioning plate; Two clamping blocks are symmetrically installed on the ends of the two connecting blocks extending to the outside of the rear shell, and the two clamping blocks can be clamped with the T-shaped positioning block when the rear shell contacts the T-shaped positioning block. An adjusting mechanism is mounted on the rear shell and connected with the two connecting blocks, and the adjusting mechanism is used for reversely sliding or stopping the two connecting blocks along the sliding grooves, so that the two clamping blocks are clamped with or unclamped from the T-shaped positioning block.

2. The quick-mount housing for a fault arc detector of claim 1, wherein: The adjusting mechanism comprises a bidirectional screw rod rotatably installed on the rear shell in the vertical direction and located in the cavity, and the bidirectional screw rod is threadedly connected with the two connecting blocks.

3. The quick-mount housing for a fault arc detector of claim 2, wherein: An adjusting member connected with the bidirectional screw rod is mounted on the side of the rear shell away from the T-shaped positioning block, and the adjusting member is used for rotating the bidirectional screw rod on the rear shell.

4. The quick-mount housing for a fault arc detector of claim 3, wherein: The adjusting member comprises a rotating rod rotatably installed on the rear shell in the horizontal direction, a driving bevel gear is coaxially fixed to one end of the rotating rod extending into the cavity, a driven bevel gear meshing with the driving bevel gear is coaxially fixed to the bidirectional screw rod, and an internal hexagonal hole is formed in the other end of the rotating rod flush with the rear shell.

5. The quick-mount housing for a fault arc detector of claim 4, wherein: The number ratio of the teeth of the driving bevel gear to the driven bevel gear is 3:

1.

6. The quick-mount housing for a fault arc detector of claim 1, wherein: The clamping block comprises a mounting block fixedly connected with the connecting block, a mounting cavity is formed in the bottom of the mounting block and located on the side of the T-shaped positioning block away from the rear shell, vertically arranged spring telescopic rods are symmetrically fixedly installed in the mounting cavity on the mounting block, clamping blocks capable of being hidden in the mounting cavity are fixedly installed at the bottom of the two spring telescopic rods, the clamping blocks extend below the mounting block when the two spring telescopic rods are in a natural state, the mounting block contacts the positioning plate when the rear shell contacts the T-shaped positioning block, and the clamping blocks are clamped with the T-shaped positioning block inserted on the side opposite to the positioning plate of the T-shaped positioning block.

7. The quick-mount housing for a fault arc detector of claim 6, wherein: The end of the clamping block extending below the mounting block and away from the rear shell is arc-shaped.

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