Leakage protector convenient to install and capable of using electricity safely

Abstract

The invention relates to the technical field of leakage protectors, in particular to a leakage protector convenient to install and capable of using electricity safely, which comprises a leakage protector main body, a plurality of wire inlet holes used for connecting wires are formed in the outer side of the top of the leakage protector main body, and binding mechanisms are fixed to the tops and the bottoms of the outer sides of the wire inlet holes. The binding mechanism comprises a supporting plate, two connecting rods are rotationally arranged at one end of the supporting plate, and a rubber wheel is rotationally arranged between the two connecting rods. According to the electric leakage protector, the pulling resistance of the wire is increased through the two rubber wheels, the phenomenon that the wire is pulled off is reduced, when the wire is pulled by large force to move, a copper wire of the wire moves into the elastic bag, an electric shock accident is prevented, and the use safety of the electric leakage protector is improved; and meanwhile, the rubber wheel rotates and winds the traction belt along with the movement of the wire, the traction belt pulls the elastic bag to tension the outer side of the elastic bag, and a user observes the tensioning phenomenon of the elastic bag to conveniently check whether the wire is pulled out of the mounting position.

Description

Technical Field

[0001] The invention relates to the technical field of leakage protectors, in particular to a leakage protector which is easy to install and can ensure safe electricity use. Background Art

[0002] A leakage protector is a safety device in an electrical circuit. It detects the residual current in the circuit, that is, the difference between the live and neutral currents. When this difference exceeds a preset value, the leakage protector quickly cuts off the circuit to prevent the current from passing through the human body or other conductors and causing harm. During use, the leakage protector has the live and neutral wires fixed to the inlet at the top with fixing bolts. The live wire is responsible for transmitting electrical energy from the power supply to the load, and the neutral wire is responsible for returning current from the load to the power supply. During the installation of wires, when multiple wires need to be connected to the leakage protector, the user will hold multiple wires in his hand and distribute the wires to the corresponding wire inlets. However, the wire inlets lack a structure to restrain the wires, causing the wires inserted into the wire inlets to shift or detach from the wire inlets, requiring the user to repeatedly plug the wires into the wire inlets. During circuit construction or maintenance, workers may accidentally pull the wires, especially in narrow or difficult-to-operate spaces. If the live wire is pulled out of the wire inlet, it will be exposed to the outside world, which is prone to electric shock caused by human touch, posing a safety hazard. Summary of the Invention

[0003] The object of the present invention is to provide a leakage protector that is easy to install and safe to use electricity. The two rubber wheels increase the pulling resistance of the wire and reduce the occurrence of wire pulling-off. When the wire is pulled by a large force and moves, the copper wire of the wire moves to the inside of the elastic bag for protection, preventing electric shock accidents and improving the safety of the leakage protector. At the same time, the rubber wheel will rotate the winding traction belt as the wire moves. The traction belt pulls the elastic bag to tighten the outside of the elastic bag. The tensioning phenomenon of the elastic bag is used to warn the user to check whether the wire is pulled off the installation position, so as to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions: A leakage protector for safe electricity use that is easy to install, comprising: A leakage protector body, wherein a plurality of wire entry holes are provided on the top of the leakage protector body; There are two restraining mechanisms, which are fixed at the top and bottom of the wire entry hole respectively. The restraining mechanism includes a support plate, one end of which rotates with two connecting rods, and a rubber wheel rotates between the two connecting rods; An elastic bag, one end of which is arranged inside the wire inlet hole and is used to insulate the copper wire on the protective wire. Two traction belts are fixed to the top and bottom of the open elastic bag, and the traction belts are wrapped and fixed with the rubber wheel; There are two T-shaped blocks, which can be detachably fixed inside the wire entry hole to limit and fix the elastic bag; The protective shell is fixed on the outside of the cable entry hole and is used to protect the restraint mechanism.

[0005] Furthermore, a connecting shaft is rotatably provided at one end of the support plate, a torsion spring is sleeved between the connecting shaft and the support plate, and both ends of the connecting shaft are fixedly connected to connecting rods at corresponding positions.

[0006] Furthermore, a limiting block is fixed at one end of the support plate, and one end of the connecting rod is rotatably abutted against the limiting block.

[0007] Furthermore, an annular groove is provided in the middle of the rubber wheel, and both ends of the rubber wheel are wound and fixed with multiple rolls of traction belts.

[0008] Furthermore, the support plate is fixedly connected to the leakage protector body, and a slot-shaped hole is provided through the middle of the support plate.

[0009] Furthermore, one end of the elastic bag is provided with a circular hole, the circular hole can be elastically deformed, and the elastic bag is made of insulating elastic material.

[0010] Furthermore, a fixing bolt for fixing the wire is screwed and connected to the outer side of the leakage protector body corresponding to the wire inlet hole, and a mechanical handle is rotated on the outer side of the leakage protector body.

[0011] Furthermore, a transparent plate is detachably fixed to the open end of the protective shell, and a rectangular frame for mounting and fixing the protective shell is fixed to the outer side of the leakage protector body.

[0012] Furthermore, one end of the T-shaped block is fixedly connected to the elastic bag, and the other end of the T-shaped block is slidably connected to the wire inlet hole.

[0013] Furthermore, a slide groove is provided on the inner top and the inner bottom of the wire inlet hole, the slide groove is slidably connected to the T-shaped block, and the T-shaped block is detachably screwed and fixed to one end of the slide groove by a screw.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. Two support plates are symmetrically fixed on the outside of the wire entry hole. The support plates have two connecting rods that rotate toward the opening of the wire entry hole through the connecting shaft. A rubber wheel rotates between the two connecting rods. When the wire is installed and inserted into the wire entry hole, the two rubber wheels can directionally transport the wire, so that the copper wire end of the wire can be accurately moved to the installation position. When the wire is pre-inserted into the wire entry hole for installation, the elastic force of the torsion spring drives the connecting shaft to move with the connecting rod in the direction away from the support plate, thereby causing the two rubber wheels to clamp and fix the wire to be installed to prevent the wire from falling out of the wire entry hole.

[0015] 2. By fixing two T-shaped blocks inside the wire entry hole, an elastic bag is fixed between the two T-shaped blocks and the rubber wheel. The elastic bag is set on one end of the exposed copper wire of the wire, which can protect the copper wire in the rest of the position except the installation position inside the elastic bag. When the wire is accidentally pulled off and the copper wire leaves the installation position of the wire entry hole, the exposed copper wire can move into the bag with the sealed end of the elastic bag. The inward-turned elastic bag completely protects the copper wire to prevent the copper wire from being exposed to the outside world after the wire is pulled off. In addition, the elastic bag is made of insulating material, which is also conducive to preventing electric shock caused by human touch.

[0016] 3. In the event of accidental pulling of the wire, the wire will move away from the rubber wheel. The movement of the wire will provide friction to the rubber wheel to move outward. Under the action of friction, the two rubber wheels have a tendency to move outward. Since the rubber wheels are tilted and supported on the outside of the wire by connecting rods, the tendency of the rubber wheels to move outward will make the two rubber wheels clamp the wire more firmly, thereby increasing the resistance to accidental pulling of the wire and reducing the risk of the wire being pulled off.

[0017] 4. When the wire is pulled by external force, the wire will move outward and rotate with the rubber wheel in contact with it. The rubber wheel rotates and reels the traction belt so that the traction belt tensions the elastic bag between the rubber wheel and the T-shaped block, so that the elastic bag at this position is in a straightened state. The user can observe whether the elastic bag is in a straightened and tensioned state through the protective shell and the slotted hole. If the elastic bag is in a straightened and tensioned state, it means that the wire is pulled by external force, and it is necessary to check whether the wire is pulled out of the wire entry hole installation position. If the elastic bag is in a relaxed state, it means that the wire is not pulled by external force. At this time, there is no need to check the problem of the wire being loose due to pulling, thereby helping users to judge whether the wire is pulled by external force from the appearance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention Figure 1 ; Figure 2 This is a schematic diagram of the overall structure of the present invention Figure 2 ; Figure 3 This is a schematic diagram of the outer structure of the wire inlet hole in the present invention; Figure 4 This is a schematic diagram of the restraint mechanism, elastic bag, and T-shaped block structure of the present invention; Figure 5 This is a schematic diagram of the internal structure of the elastic bag of the present invention; Figure 6 It is a schematic structural diagram of the restraint mechanism in the present invention; Figure 7 This is a schematic diagram of the elastic bag structure of the present invention; Figure 8It is a schematic structural diagram of the state in which the copper wire body is pulled out into the elastic bag in the present invention.

[0019] In the figure: 100, leakage protector body; 110, wire entry hole; 111, slide groove; 120, rectangular frame; 130, fixing bolt; 140, mechanical handle; 150, experimental button; 160, closing button; 200, restraining mechanism; 210, support plate; 211, connecting shaft; 212, limit block; 213, slotted hole; 220, connecting rod; 230, rubber wheel; 300, elastic bag; 310, traction belt; 320, round hole; 400, T-shaped block; 500, protective shell; 510, transparent plate; 600, conductor body; 610, copper wire body. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] For example 1, please refer to Figure 1 - Figure 8 In an embodiment of the present invention, a leakage protector for safe electricity use that is easy to install includes a leakage protector body 100. A plurality of wire entry holes 110 for connecting wires are opened on the top outer side of the leakage protector body 100. The top and bottom outer sides of the wire entry holes 110 are fixed with a restraining mechanism 200. The restraining mechanism 200 includes a support plate 210. One end of the support plate 210 rotates with two connecting rods 220. A rubber wheel 230 rotates between the two connecting rods 220. The wire entry holes 110 are fixed with a restraining mechanism 200. 0 is plugged into an elastic bag 300, which is used to insulate the copper wire on the protective conductor. Two traction belts 310 are fixed to the open top and bottom of the elastic bag 300, and the traction belts 310 are wrapped and fixed with the rubber wheel 230. T-shaped blocks 400 are fixed to the top and bottom surfaces of the middle part of the elastic bag 300. The T-shaped block 400 is detachably fixed to the wire entry hole 110. A protective shell 500 for protecting the restraint mechanism 200 is detachably fixed to the outside of the leakage protector body 100.

[0022] Specifically, by fixing the restraining mechanism 200 on the outside of the wire entry hole 110, the inclined connecting rod 220 on the restraining mechanism 200 carries two rubber wheels 230 to clamp the wire. Accidental pulling of the wire will cause the wire to move outward with the two rubber wheels 230, thereby causing the connecting rod 220 to rotate outward. This will in turn make the two rubber wheels 230 clamp the wire more firmly. The two rubber wheels 230 increase the pulling resistance of the wire and reduce the occurrence of wire pulling-off phenomenon to a certain extent. When the wire is subjected to a large pulling force so that the rubber wheels 230 cannot hinder the movement of the wire, the copper wire at the wire pulling-off position moves The elastic bag 300 is pulled into the interior of the elastic bag 300, which can insulate and protect the exposed copper wire to prevent electric shock accidents and improve the safety of the leakage protector. At the same time, the rubber wheel 230 will rotate and reel in the traction belt 310 as the wire moves. The traction belt 310 pulls the elastic bag 300 to tighten the outside of the elastic bag 300. The user observes the tensioning phenomenon of the elastic bag 300 to facilitate timely inspection of whether the wire is pulled out of the installation position, thereby combining the prevention of wire pulling out, wire copper wire protection and assisting users in judging whether the wire is pulled in multiple directions, thereby achieving the effect of safe use of the leakage protector.

[0023] like Figure 3 、 Figure 5 and Figure 6 As shown, in this embodiment, a connecting shaft 211 is rotated at one end of the support plate 210, and a torsion spring is sleeved between the connecting shaft 211 and the support plate 210. The two ends of the connecting shaft 211 are respectively fixedly connected to the corresponding connecting rod 220. After the wire is inserted between the two rubber wheels 230, the elastic force of the torsion spring drives the connecting shaft 211 to rotate with the connecting rod 220 in the direction away from the support plate 210, so that the rubber wheel 230 at the bottom end of the connecting rod 220 can abut the wire, assisting the wire to move smoothly toward the wire entry hole 110, and increasing the resistance of the wire to move away from the wire entry hole 110.

[0024] In this embodiment, when the copper wire end of the wire and the elastic bag 300 need to be removed from the wire entry hole 110, the rubber wheel 230 can be rotated by hand to release the traction belt 310, thereby relaxing the elastic bag 300. The screws on the two T-shaped blocks 400 are then loosened and removed from the wire entry hole 110. The connecting rod 220 is then rotated toward the wire entry hole 110 so that the rubber wheel 230 no longer clamps the wire. The wire and the elastic bag 300 can then be removed from the wire entry hole 110 together.

[0025] like Figure 6As shown, in this embodiment, a limit block 212 is fixed to one end of the support plate 210, and one end of the connecting rod 220 rotates against the limit block 212. When no wire is installed between the two rubber wheels 230, the torsion spring drives the connecting shaft 211 to rotate with the connecting rod 220 in the direction of the limit block 212, and the limit block 212 can make the connecting rod 220 rotate and stay in the vertical direction.

[0026] like Figure 4 As shown, in this embodiment, an annular groove is provided in the middle of the rubber wheel 230. The annular groove can match the cylindrical shape of the wire, so that the two rubber wheels 230 firmly contact the wire. Both ends of the rubber wheel 230 are wrapped and fixed with multiple rolls of traction belt 310. In this way, the rubber wheel 230 can be manually rotated to release the longer traction belt 310, so that the elastic bag 300 can be moved out of the wire entry hole 110 together with the wire.

[0027] like Figure 4 As shown, in this embodiment, the support plate 210 is fixedly connected to the leakage protector body 100, and a slot-shaped hole 213 is opened through the middle of the support plate 210. The user can observe whether the elastic bag 300 is in a stretched state through the slot-shaped hole 213 to determine whether the wire is pulled by external force.

[0028] In this embodiment, after opening the transparent plate 510 of the protective shell 500, the user can use an electric pen or other rod-shaped tool to poke the outside of the elastic bag 300 through the slotted hole 213 to test whether the outside of the elastic bag 300 is always in a tensioned state. If it is always in a tensioned state, it indicates that the wires are too tight during installation and need to be loosened again.

[0029] like Figure 7 As shown, in this embodiment, a circular hole 320 is formed through one end of the elastic bag 300, and the circular hole 320 can undergo elastic deformation. In the initial state, when the wire is inserted into the installation position inside the wire entry hole 110 through the elastic bag 300, the circular hole 320 is deformed to meet the arc-shaped twisted position of the copper wire, thereby allowing the copper wire to pass through the elastic bag 300. When the copper wire is pulled off and moves toward the elastic bag 300 in the later stage, the twisted copper wire cannot enter the elastic bag 300 from the circular hole 320 position, and the elastic bag 300 will be flipped from the bottom of the bag to the inside of the bag to enable the copper wire position of the wire to enter the elastic bag 300. The elastic bag 300 is made of an insulating elastic material, and the specific material can be a polyurethane material in the prior art. The selection of the specific material will not be described in detail.

[0030] In this embodiment, when the wire has been pulled out, the wire can be manually pushed toward the wire entry hole 110 so that the copper wire of the wire stored in the elastic bag 300 is moved back to the installation position of the wire entry hole 110.

[0031] like Figure 1 and Figure 2 As shown, in this embodiment, the outer side of the leakage protector body 100 corresponding to the wire inlet hole 110 is screwed and connected with a fixing bolt 130 for fixing the wire. After the copper wire end of the wire is inserted into the wire inlet hole 110, an external screwdriver can be used to rotate the fixing bolt 130, so that the fixing bolt 130 is screwed down to fix the copper wire inside the leakage protector. A mechanical handle 140 is rotated on the outer side of the leakage protector body 100. After the leakage protector automatically trips, the mechanical handle 140 can be manually rotated to open the switch. The working principle of the automatic tripping protection circuit of the leakage protector is an existing public technology and will not be described in detail here.

[0032] like Figure 1 and Figure 2 As shown, in this embodiment, a transparent plate 510 is detachably fixed to the open end of the protective shell 500. The transparent plate 510 can be made of acrylic plastic material, which allows the user to directly observe whether the elastic bag 300 is tensioned through the transparent plate 510. A rectangular frame 120 for installing and fixing the protective shell 500 is fixed to the outside of the leakage protector body 100. The rectangular frame 120 and the protective shell 500 are detachably installed and fixed.

[0033] In this embodiment, the protective shell 500 is mainly composed of two rectangular boxes that can be combined with each other. When installing or removing the wires, the rectangular box with the transparent plate 510 fixed thereon can be removed to facilitate the user to operate the wires.

[0034] like Figure 2 As shown, in this embodiment, an experimental button 150 and a closing button 160 are provided on the leakage protector body 100. The experimental button 150 is generally pressed once a month to detect whether the automatic terminal function of the leakage protector is intact. After the leakage protector trips, the closing button 160 is first pressed, and then the mechanical handle 140 is moved to manually close the circuit breaker.

[0035] like Figure 3 As shown, in this embodiment, the present application installs a restraining mechanism 200 and an elastic bag 300 at the open positions of the live wire and neutral wire entry holes 110 to protect the live wire and the neutral wire at the same time. Of course, such structures can also be installed at the other wire connection positions on the leakage protector for protection. If the leakage protector is exposed to the outdoors, a protective shell 500 can be installed. If the leakage protector is installed in a space with better protection measures such as a distribution cabinet, the protective shell 500 does not need to be installed. Whether the protective shell 500 needs to be installed depends on the working environment of the leakage protector.

[0036] Embodiment 2 is based on embodiment 1, in order to ensure that the copper wire of the conductor that is pulled out can be smoothly moved to the inside of the elastic bag 300 for protection.

[0037] like Figure 3 - Figure 5 As shown, in this embodiment, one end of the T-shaped block 400 is fixedly connected to the elastic bag 300, and the other end of the T-shaped block 400 is slidably connected to the wire inlet hole 110. The inner top and inner bottom of the wire inlet hole 110 are both provided with a sliding groove 111, and the sliding groove 111 is slidably connected to the T-shaped block 400. The T-shaped block 400 is detachably screwed and fixed to one end of the sliding groove 111 by a screw.

[0038] Specifically, the two T-shaped blocks 400 support and fix the elastic bag 300 from the top and bottom respectively inside the wire entry hole 110, so that the elastic bag 300 at the left end of the T-shaped block 400 is in a relaxed state, which facilitates the movement of the copper wire in the pulling state into the elastic bag 300. The elastic bag 300 at the right end of the T-shaped block 400 can be kept in a tensioned state under the traction of the traction belt 310, thereby alerting the user to check whether the wire is in a pulled state.

[0039] In this embodiment, during the installation of the T-shaped blocks 400, the two T-shaped blocks 400 are slid along the corresponding slide grooves 111 and snapped into the interior of the slide grooves 111. Then, a screw is screwed from the end of the T-shaped block 400 facing away from the elastic bag 300 to the inner wall of the wire entry hole 110, thereby fixing the two T-shaped blocks 400 at the position of the wire entry hole 110.

[0040] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0041] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A leakage protector for safe electricity use that is easy to install, characterized in that: include: A leakage protector body (100), wherein a plurality of wire entry holes (110) are provided on the top of the leakage protector body (100); Two restraining mechanisms (200) are fixed to the top and bottom of the wire inlet hole (110), respectively. The restraining mechanisms (200) include a support plate (210), one end of the support plate (210) is rotatably provided with two connecting rods (220), and a rubber wheel (230) is rotatably provided between the two connecting rods (220); An elastic bag (300) is arranged at one end inside the wire inlet hole (110) and is used to insulate the copper wire on the protective wire. Two traction belts (310) are fixed to the top and bottom of the open end of the elastic bag (300). The traction belts (310) are wound and fixed to the rubber wheel (230); Two T-shaped blocks (400) are detachably fixed inside the wire entry hole and are used to limit and fix the elastic bag (300); The protective shell (500) is fixed on the outside of the wire entry hole (110) and is used to protect the restraining mechanism (200).

2. The easy-to-install, safe-use electricity leakage protector according to claim 1, characterized in that: A connecting shaft (211) is rotatably mounted on one end of the support plate (210), a torsion spring is sleeved between the connecting shaft (211) and the support plate (210), and both ends of the connecting shaft (211) are fixedly connected to connecting rods (220) at corresponding positions.

3. The easy-to-install, safe-use-of-electricity leakage protector according to claim 1, characterized in that: A limiting block (212) is fixed to one end of the support plate (210), and one end of the connecting rod (220) is rotatably abutted against the limiting block (212).

4. The easy-to-install, safe-use-of-electricity leakage protector according to claim 1, characterized in that: An annular groove is provided in the middle of the rubber wheel (230), and both ends of the rubber wheel (230) are wound and fixed with the multiple rolls of traction belts (310).

5. The easy-to-install, safe-use-of-electricity leakage protector according to claim 1, characterized in that: The support plate (210) is fixedly connected to the leakage protector body (100), and a slot-shaped hole (213) is provided through the middle of the support plate (210).

6. The easy-to-install, safe electricity leakage protector according to claim 1, characterized in that: A circular hole (320) is formed through one end of the elastic bag (300), and the circular hole (320) is capable of elastic deformation. The elastic bag (300) is made of an insulating elastic material.

7. The easy-to-install, safe-use-of-electricity leakage protector according to claim 1, characterized in that: A fixing bolt for fixing a wire is screwed and connected to the outer side of the leakage protector body (100) corresponding to the wire inlet hole (110), and a mechanical handle (140) is rotated on the outer side of the leakage protector body (100).

8. The easy-to-install, safe electricity leakage protector according to claim 1, characterized in that: A transparent plate (510) is detachably fixed to the open end of the protective shell (500), and a rectangular frame (120) for mounting and fixing the protective shell (500) is fixed to the outside of the leakage protector body (100).

9. The easy-to-install, safe electricity leakage protector according to claim 1, characterized in that: One end of the T-shaped block (400) is fixedly connected to the elastic bag (300), and the other end of the T-shaped block (400) is slidably connected to the wire inlet hole (110).

10. The easy-to-install, safe electricity leakage protector according to claim 9, characterized in that: The inner top and the inner bottom of the wire inlet hole (110) are both provided with a slide groove (111), the slide groove (111) is slidably connected to the T-shaped block (400), and the T-shaped block (400) is detachably screwed and fixed to one end of the slide groove (111) by a screw.

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