Low-voltage surge protector

Abstract

The utility model provides a low-voltage surge protector. Comprising a plugging seat, a module body, a fixing mechanism and a connecting mechanism, wherein the side surface of the plugging seat is provided with a wire hole for plugging a wire; the end surface of the top end of the plugging seat is provided with a plugging groove; the module body can be fixedly plugged in the plugging groove; the fixing mechanism comprises a positioning block which is arranged at the opening position of the wire hole and of which the end surface is communicated with the interior of the wire hole, and two positioning semi-rings which are vertically symmetrical and of which the adjacent end surfaces are provided with fixing grooves matched with the side surface of the wire; the elastic assemblies are arranged above and below the fixing groove and connect the side faces of the sides, away from each other, of the two positioning semi-rings to the groove wall of the fixing groove, a fixing rod is fixedly arranged in the fixing groove in the vertical direction, and a rod body of the fixing rod is rotationally connected with the side faces of the two positioning semi-rings; according to the utility model, the lead can be conveniently fixed, the connection efficiency of the lead and the surge protector is improved, and the situation that the connection part of the lead is loosened due to the movement of the lead is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of surge protectors, in particular to a low-voltage surge protector. Background Art

[0002] The low-voltage distribution system consists of a distribution substation (usually reducing the transmission voltage of the power grid to a distribution voltage), high-voltage distribution lines (i.e. voltages above 1 kilovolt), distribution transformers, low-voltage distribution lines (voltages below 1 kilovolt), and corresponding control and protection equipment. A surge protector is one of the components of a low-voltage distribution system. A surge protector, also called a lightning arrester, is an electronic device that provides safety protection for various electronic equipment, instruments, and communication lines. When a spike current or voltage suddenly occurs in an electrical circuit or communication line due to external interference, the surge protector can conduct and shunt in a very short time, thereby avoiding damage to other equipment in the circuit caused by the surge. The surge protector can quickly discharge lightning surge current into the earth, thereby protecting electrical equipment from lightning strikes. Products with surge protectors can effectively absorb sudden huge energy to protect connected equipment from damage.

[0003] The lightning and surge protectors for low-voltage power distribution systems currently on the market do not have a fixed-wire structure, and the wiring is prone to loosening, resulting in poor contact, affecting the reliability of its use. Utility Model Content

[0004] In view of the above technical problems, the utility model provides a low-voltage surge protector, which can conveniently fix the wires, improve the connection efficiency between the wires and the surge protector, and avoid the loosening of the connection of the wires due to the movement of the wires.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a low-voltage surge protector, comprising a plug-in socket with a wire hole for inserting a wire on the side and a plug-in slot on the top end face, a module body that can be fixedly inserted in the plug-in slot, a fixing mechanism arranged at the opening position of the wire hole to fix the position of the wire, and a connecting mechanism arranged in the plug-in socket and connected to the wire, the fixing mechanism comprising a positioning block arranged at the opening position of the wire hole and with a positioning hole that passes through the inside of the wire hole on the end face, two positioning half rings that are symmetrical up and down and have fixing slots that match the side faces of the wire, an elastic component that is arranged above and below the fixing slot and connects the two positioning half rings to the wall of the fixing slot on one side away from each other, a fixing rod is fixedly arranged in the fixing slot along the vertical direction, and the fixing rod body is rotatably connected to the side faces of the two positioning half rings.

[0006] Preferably, the elastic component includes two telescopic rods arranged in the vertical direction and located above and below the two positioning semi-rings, and the two ends of the telescopic rods are respectively connected to the two positioning semi-rings away from one side and the wall of the positioning hole, and a limit spring movably mounted on the telescopic rods, and the limit spring is in a compressed state.

[0007] Preferably, a guide plate is fixedly provided at one end of the two positioning half rings away from the fixing rod, and an angle of degrees is formed between the two guide plates.

[0008] Preferably, the connecting mechanism includes a control bolt passed through the top end face of the plug-in seat, a lifting block arranged below the control bolt and having a clamping groove passing through the wire hole on the side, and a connecting block fixedly arranged in the plug-in seat and movably passed through the clamping groove and connectable to the module body, and the bottom end of the control bolt is passed through the top end portion of the lifting block through a threaded connection.

[0009] Preferably, a plurality of equally spaced fixing strips are fixedly disposed on the bottom end surface of the connecting block and the clamping groove wall below the connecting block, and the plurality of fixing strips disposed on the bottom end of the connecting block and the plurality of fixing strips disposed on the clamping groove wall are staggered.

[0010] Preferably, a placement groove that passes through the interior of the plug-in socket is opened on the top end face of the plug-in socket, a hidden column is fixedly arranged at the opening position of the placement groove of the plug-in socket, and a hidden groove that passes through the placement groove is opened on the top end face of the hidden column, and the bottom end of the control bolt is movable through the bottom wall of the hidden groove inside the plug-in socket.

[0011] The beneficial effects of the utility model are as follows: when connecting the wire to the surge protector, the wire is directly passed through the positioning hole and the wire is placed in the two positioning half rings. By means of a spring component arranged in the positioning hole and connected to the positioning half rings, the two positioning half rings are driven close to each other by the elastic component, so that the position of the wire is conveniently fixed between the two positioning half rings, so that the position of the positioning half ring in the wire hole is conveniently fixed, so that the subsequent connection and fixation between the wire and the surge protector is convenient, and the position of the wire is fixed by the two positioning half rings, so as to avoid directly driving the connection between the wire and the surge protector to move when the wire moves, and the wire can be conveniently fixed, thereby improving the connection efficiency between the wire and the surge protector, and avoiding the loosening of the connection of the wire due to the movement of the wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0013] Figure 1This is a schematic diagram of the expanded structure of the low-voltage surge protector proposed by the utility model.

[0014] Figure 2 This is a schematic diagram of the internal structure of the connecting groove proposed by the utility model.

[0015] Figure 3 This is a schematic diagram of the structure of the linkage component and the elastic component proposed in the utility model.

[0016] Figure 4 This is a schematic diagram of the cross-sectional structure of the mounting block and mounting strip proposed in the utility model.

[0017] In the figure: 1. Plug-in seat; 2. Plug-in slot; 3. Module body; 4. Placement slot; 5. Positioning block; 6. Positioning hole; 7. Fixing rod; 8. Positioning half ring; 9. Positioning slot; 10. Telescopic rod; 11. Limit spring; 12. Guide plate; 13. Hidden column; 14. Hidden slot; 15. Control bolt; 16. Lifting block; 17. Clamping slot; 18. Connecting block; 19. Fixing strip. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments and drawings, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.

[0019] See also Figure 1-4 A low-voltage surge protector comprises a plug-in seat 1 with a wire hole for inserting a wire on the side and a plug-in slot 2 on the top end face, a module body 3 that can be fixedly inserted in the plug-in slot 2, a fixing mechanism arranged at the opening position of the wire hole to fix the position of the wire, and a connecting mechanism arranged in the plug-in seat 1 and connected to the wire, the fixing mechanism comprises a positioning block 5 arranged at the opening position of the wire hole and having a positioning hole 6 penetrating the inside of the wire hole on the end face, two positioning semi-rings 8 that are symmetrical up and down and have positioning slots 9 matching the side faces of the wire, an elastic component arranged above and below the positioning slot 9 and connecting the two positioning semi-rings 8 to the groove wall of the positioning slot 9 on one side away from each other, a fixing rod 7 is fixedly arranged in the positioning slot 9 along the vertical direction, and the rod body of the fixing rod 7 is rotatably connected to the sides of the two positioning semi-rings 8.

[0020] like Figure 1-4As shown, the wire is directly passed through the positioning hole 6 opened by the positioning block 5 and is passed into the wire hole, and the wire is placed between the two positioning half rings 8. The two positioning half rings 8 are controlled to be close to each other through the action of the elastic component, so that the wire position is fixed by the two positioning half rings 8, so that the position of the wire in the wire hole is pre-fixed, so as to facilitate the subsequent connection between the wire end and the surge protector. The wire position is fixed by the two positioning half rings 8, so as to avoid the loosening of the connection between the wire and the surge protector when the wire moves. The wire can be fixed conveniently, the connection efficiency between the wire and the surge protector is improved, and the loosening of the connection of the wire caused by the movement of the wire is avoided.

[0021] like Figure 4 As shown, the elastic component includes two telescopic rods 10 arranged in the vertical direction and located above and below the two positioning semi-rings 8 and connected at both ends to the two positioning semi-rings 8 away from one side and the wall of the positioning hole 6, and a limit spring 11 movably sleeved on the telescopic rod 10, and the limit spring 11 is in a compressed state. When the wire passes through the positioning hole 6 opened by the positioning block 5, the wire is placed between the two positioning semi-rings 8. At this time, the two positioning semi-rings 8 are driven to approach each other by the limit spring 11 sleeved on the telescopic rod 10 and in a compressed state, so that the wire is stably fixed by the two positioning semi-rings 8, which is convenient for fixing the wire and the surge protector later, and avoids the loosening of the connection between the wire and the surge protector when the wire moves.

[0022] like Figure 4 As shown, a guide plate 12 is fixedly provided at one end of the two positioning semi-rings 8 away from the fixing rod 7, and an angle of 60 degrees is formed between the two guide plates 12. After the wire is passed through the positioning hole 6 and inserted into the wire hole, the side of the wire is directly inserted between the two guide plates 12, and the side of the wire is controlled to move between the two positioning semi-rings 8, so that when the wire enters between the two positioning semi-rings 8, the wire will first drive the two positioning semi-rings 8 away from each other, and when the wire is passed between the two positioning semi-rings 8, the limit spring 11 will also drive the two positioning semi-rings 8 closer to each other under the action of elastic force, so that the position of the wire can be fixed by the two positioning semi-rings 8, the wire can be conveniently fixed, the connection efficiency of the wire and the surge protector is improved, and the loosening of the connection of the wire caused by the movement of the wire is avoided.

[0023] like Figure 1-4As shown, the connecting mechanism includes a control bolt 15 penetrated on the top end surface of the plug-in seat 1, a lifting block 16 arranged below the control bolt 15 and having a clamping groove 17 penetrating the wire hole on the side, and a connecting block 18 fixedly arranged in the plug-in seat 1 and movably penetrated in the clamping groove 17 and connectable to the module body 3, wherein the bottom end of the control bolt 15 is penetrated on the top end of the lifting block 16 by a threaded connection, wherein the wire is fixed by two positioning semi-rings 8, and at this time the wire end is penetrated between the clamping groove 17 and the bottom end of the connecting block 18, and the control bolt 15 is driven to rotate, so as to facilitate the lifting block 16 threadedly connected with the control bolt 15 to move upward, so as to facilitate the fixing of the wire end by the lifting block 16 and the connecting block 18, avoiding the need for staff to support the wire when connecting the wire end to the surge protector in the prior art, and can conveniently fix the wire, thereby improving the connection efficiency between the wire and the surge protector, and avoiding the loosening of the connection of the wire due to the movement of the wire.

[0024] like Figure 3 As shown, a plurality of equally spaced fixing bars 19 are fixedly provided on the bottom end surface of the connecting block 18 and the wall of the clamping groove 17 located below the connecting block 18. The plurality of fixing bars 19 provided on the bottom end of the connecting block 18 and the plurality of fixing bars 19 provided on the wall of the clamping groove 17 are arranged alternately. When the end of the wire is fixed by the lifting block 16 and the connecting block 18, the stability of the wire fixation is improved by fixing the end of the wire by the plurality of fixing bars 19 arranged alternately.

[0025] A placement groove 4 that penetrates the interior of the plug-in socket 1 is provided on the top end face of the plug-in socket 1, and a hidden column 13 is fixedly arranged at the opening position of the placement groove 4 of the plug-in socket 1. A hidden groove 14 that penetrates the placement groove 4 is provided on the top end face of the hidden column 13, and the bottom end of the control bolt 15 movably penetrates the bottom wall of the hidden groove 14 inside the plug-in socket 1.

[0026] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A low-voltage surge protector, comprising a plug-in socket (1) with a wire hole for inserting a wire on the side and a plug-in slot (2) on the top end surface, a module body (3) that can be fixedly inserted in the plug-in slot (2), a fixing mechanism arranged at the opening position of the wire hole to fix the position of the wire, and a connecting mechanism arranged in the plug-in socket (1) and connected to the wire, characterized in that: The fixing mechanism comprises a positioning block (5) arranged at the opening position of the wire hole and having an end surface provided with a positioning hole (6) penetrating the inside of the wire hole, two positioning half rings (8) symmetrically arranged above and below and having adjacent end surfaces provided with positioning grooves (9) matching the side surfaces of the wire, an elastic component arranged above and below the positioning groove (9) and connecting the two positioning half rings (8) to the groove wall of the positioning groove (9) with the side surfaces away from each other, a fixing rod (7) fixedly arranged in the positioning groove (9) along the vertical direction, and the rod body of the fixing rod (7) is rotatably connected to the side surfaces of the two positioning half rings (8).

2. A low voltage surge protector according to claim 1, characterized in that: The elastic component comprises two telescopic rods (10) arranged in the vertical direction and located above and below the two positioning semi-rings (8), and the two ends of which are respectively connected to the two positioning semi-rings (8) and are away from the side surfaces of one side and the wall of the positioning hole (6), and a limit spring (11) movably sleeved on the telescopic rod (10), and the limit spring (11) is in a compressed state.

3. A low voltage surge protector according to claim 2, characterized in that: A guide plate (12) is fixedly provided at one end of the two positioning half rings (8) away from the fixing rod (7), and the two guide plates (12) form an angle of 60 degrees.

4. A low voltage surge protector according to claim 3, characterized in that: The connection mechanism comprises a control bolt (15) which is inserted through the top end surface of the plug-in seat (1), a lifting block (16) which is arranged below the control bolt (15) and has a clamping groove (17) which is connected to the wire hole on the side, and a connection block (18) which is fixedly arranged in the plug-in seat (1) and movably inserted in the clamping groove (17) and can be connected to the module body (3). The bottom end of the control bolt (15) is inserted through the top end of the lifting block (16) through a threaded connection.

5. A low voltage surge protector according to claim 4, characterized in that: A plurality of fixing strips (19) arranged at equal intervals are fixedly arranged on the end surface of the bottom end of the connection block (18) and on the wall of the clamping groove (17) located below the connection block (18); the plurality of fixing strips (19) arranged on the bottom end of the connection block (18) and the plurality of fixing strips (19) arranged on the wall of the clamping groove (17) are arranged in a staggered manner.

6. A low voltage surge protector according to claim 5, characterized in that: A placement groove (4) penetrating the interior of the plug-in seat (1) is provided on the top end surface of the plug-in seat (1); a hidden column (13) is fixedly arranged at the opening position of the placement groove (4) of the plug-in seat (1); a hidden groove (14) penetrating the placement groove (4) is provided on the top end surface of the hidden column (13); and the bottom end of the control bolt (15) movably penetrates the bottom wall of the hidden groove (14) inside the plug-in seat (1).

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