Surge protector

Abstract

A surge protector disclosed by the present invention comprises a base and a lightning protection module, the base is provided with a mounting groove for the lightning protection module to be inserted in a matched manner, two sides of the mounting groove are provided with clamping grooves, clamping blocks are arranged in the clamping grooves, two sides of the lightning protection module are provided with plate grooves, and the plate grooves are internally in threaded connection with a first limiting piece and a second limiting piece. A clamping plate horizontally and elastically connected with the plate groove is further arranged on the outer side of the first limiting piece, the second limiting piece movably penetrates through the clamping plate, a limiting plate blocking the outer side of the clamping plate is arranged at the end of the second limiting piece, and a clamping head clamped to the lower portion of the clamping block is arranged at the bottom of the clamping plate. The anti-thunder module has the beneficial effects that after the first limiting piece is screwed out outwards, the clamping plate is prevented from moving towards the interior of the plate groove, so that the anti-thunder module is prevented from being pulled out by mistake; after the second limiting piece is screwed inwards, the clamping plate is fixed in the plate groove, then when the lightning protection module is plugged, the clamping head is not clamped with the clamping block any more, and rapid plugging of the lightning protection module is facilitated.

Description

Technical Field

[0001] The invention belongs to the technical field of protectors, and in particular relates to a surge protector. Background Art

[0002] A surge protector, also known as a lightning arrester or surge protector, 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 the current in a very short time, thereby preventing the surge from damaging other equipment in the circuit.

[0003] A surge protector usually consists of two parts: a lightning protection module and a base. The base is provided with a mounting slot and wiring terminals. When the lightning protection module is inserted into the mounting slot, it will be electrically connected to the base through metal pins. The electrical circuit is then connected to the wiring terminals to provide protection for the electrical circuit and the electrical equipment therein.

[0004] In most existing surge protectors, the lightning protection module and the base are fixedly connected to each other through a fixed buckle structure, thereby effectively preventing the connection between the lightning protection module and the base from loosening due to external forces. However, in actual use, this type of fixed buckle structure has the following disadvantages: (1) During each plugging and unplugging process of the lightning protection module, the buckle needs to be temporarily deformed. When the number of plugging and unplugging is large, the temporary deformation of the buckle will be converted into an irreversible deformation, resulting in a decrease in the stability of the subsequent buckle fixing the lightning protection module and the base; (2) The buckle itself cannot be locked by adjustment. After pressing the buckle, the lightning protection module can be easily unplugged directly, which can easily cause safety risks due to negligence of the operator; (3) Once the lightning protection module is inserted into the installation slot, it will be fixedly connected to the base through the buckle, and the buckle structure cannot be temporarily disabled by adjustment. In some situations where the lightning protection module needs to be plugged and unplugged multiple times in a short period of time, such as maintenance and inspection, it will be time-consuming and labor-intensive. Summary of the invention

[0005] The existing surge protector is prone to deformation of the buckle structure after the lightning protection module is repeatedly plugged in and out, resulting in a decrease in the stability of the subsequent fixation of the lightning protection module. At the same time, the buckle cannot be adjusted to lock itself or temporarily disable the buckle, which is not convenient for adjustment and adaptation according to different working scenarios. In order to solve these problems, the following invention is proposed: A surge protector comprises a base and a lightning protection module, wherein the base is provided with an installation slot for the lightning protection module to be inserted into, card slots are provided on both sides of the installation slot, and snap blocks are provided in the card slots, and plate slots are provided on both sides of the lightning protection module, and a first limiting hole is provided in the plate slot, a first limiting member is threadedly connected in the first limiting hole, a snap plate elastically connected to the plate slot horizontally is also provided on the outside of the first limiting member, and a snap head is provided at the bottom of the snap plate.

[0006] After the lightning protection module is inserted into the installation slot, the engaging head will engage with the bottom of the engaging block to fix the lightning protection module and the base. After the engaging plate is pressed, the engaging head will be driven to move into the plate slot and disengage from the bottom of the engaging block to release the fixed connection between the lightning protection module and the base. Before pressing the engaging plate, the first limiting member can be pre-screwed out of the first limiting hole. The first limiting member after being screwed out will block the inner side of the engaging plate to prevent the engaging plate from moving into the plate slot after being pressed, thereby preventing the operator from directly unplugging the lightning protection module due to negligent operation.

[0007] Furthermore, a second limit hole is provided in the plate slot, and a second limit piece that passes through the locking plate is threadedly connected in the second limit hole, and a limit plate that blocks the outside of the locking plate is provided at the end of the second limit piece. After the second limit piece is screwed into the second limit hole, the limit plate pushes the locking plate to move horizontally into the plate slot. After the second limit piece is fully screwed in, the locking plate drives the locking head to disengage from the locking block. At this time, the lightning protection module can be plugged in and out of the installation slot at will to facilitate maintenance and inspection.

[0008] Furthermore, a slot is provided on the outer end surface of the first limiting member, and a first through hole is provided on the locking plate. The slot is connected to the outside in the horizontal direction through the first through hole. The first limiting member can be screwed in and out directly from the outer side of the locking plate using a tool that matches the slot.

[0009] Furthermore, a cross groove is provided on the outer end surface of the limit plate, and a second through hole for the second limit member to pass through is also provided on the clamping plate. The second limit member can be screwed in and out directly from the outer side of the clamping plate using a tool compatible with the cross groove.

[0010] Furthermore, a limiting groove matching with the limiting plate is provided on the outer side of the second through hole. After the second limiting member is screwed in, the limiting plate drives the engaging plate to move toward the plate groove by contacting the limiting groove.

[0011] Furthermore, a plurality of positioning posts are provided in the plate slot, a plurality of positioning holes for the positioning posts to move through are provided on the snap plate, and a spring is sleeved on the positioning post, with both ends respectively connected to the plate slot and the snap plate to elastically connect the plate slot and the snap plate.

[0012] Furthermore, a spring slot is provided in the plate slot, the positioning column extends from the spring slot, one end of the spring is sleeved and inserted into the spring slot, and the other end is elastically connected to the snap plate, so that the snap plate is elastically connected to the plate slot.

[0013] Furthermore, the engaging block is provided with a first inclined surface, and the engaging head is provided with a second inclined surface. When the lightning protection module is inserted into the installation slot, the first inclined surface abuts against the second inclined surface to push the engaging head and the engaging plate to move into the plate slot.

[0014] Furthermore, it also includes a cover plate arranged on the outside of the locking plate, the cover plate is provided with a plurality of clips, and a plurality of clip holes fixedly engaged with the clips are also provided on both sides of the plate groove. After the lightning protection module is inserted into the installation groove, the cover plate is inserted into the upper part of the clip slot, and the top surface of the cover plate and the base are flush.

[0015] Furthermore, a fixing hole for the positioning column to be fixedly inserted is provided on one side of the cover plate facing the clamping plate, and the clamping plate always moves between the cover plate and the plate groove.

[0016] The present invention proposes a surge protector, which has the following beneficial effects: (1) during the process of plugging and unplugging the lightning protection module on the base, only the snap plate moves horizontally relative to the plate slot, and other components except the spring will not be deformed, so that after the lightning protection module is plugged and unplugged multiple times, the snap-fit ​​fixation between the snap head and the snap block will not fail; (2) by rotating the first limit piece outward, the snap plate can be prevented from moving into the plate slot after being pressed, thereby forming a locking structure for the snap plate itself, preventing the operator from accidentally pulling out the lightning protection module due to negligent operation; (3) by rotating the second limit piece inward, the snap plate can be moved a certain distance into the plate slot in advance. When the second limit piece is in a fully screwed-in state, the snap plate will be fixed in the slot, and the snap plate will no longer be engaged with the snap block, making the subsequent plugging and unplugging of the lightning protection module more time-saving and labor-saving, so as to facilitate the maintenance and inspection of the lightning protection module. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the surge protector in the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the base in the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the lightning protection module in the present invention; Figure 4 The internal structure of the lightning protection module in the present invention is shown in FIG. Figure 1 ; Figure 5 The internal structure of the lightning protection module in the present invention is shown in FIG. Figure 2 ; Figure 6 It is a schematic diagram of the three-dimensional structure of the cover plate in the present invention.

[0018] The corresponding relationship between the illustrations and component names in the figure is as follows: 1. Base; 2. Lightning protection module; 3. Clamping plate; 4. First limiting member; 5. Second limiting member; 6. Cover plate; 11. Mounting slot; 12. Clamping slot; 13. Clamping block; 14. First inclined surface; 21. Plate slot; 22. First limiting hole; 23. Second limiting hole; 24. Positioning column; 25. Spring; 26. Spring slot; 27. Clamping hole; 31. Clamping head; 32. First through hole; 33. Second through hole; 34. Limiting slot; 35. Positioning hole; 36. Second inclined surface; 41. Slot; 51. Limiting plate; 52. Cross slot; 61. Fixing hole; 62. Buckle. DETAILED DESCRIPTION

[0019] The technical solution of the present invention will be clearly and completely described below in conjunction with embodiments.

[0020] Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative work should fall within the scope of protection of this application.

[0021] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so as to describe the embodiments of the present application described herein.

[0022] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present invention and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0023] like Figure 1-Figure 5As shown, it is a preferred embodiment of the present invention, a surge protector, including a base 1 and a lightning protection module 2, the base 1 is provided with a mounting groove 11 for the lightning protection module 2 to be inserted into, a clamping groove 12 is provided on each side of the mounting groove 11, a laterally extending clamping block 13 is provided in the clamping groove 12, a first inclined surface 14 is provided above the clamping block 13, a plate groove 21 and a clamping plate 3 are provided on each side of the lightning protection module 2, a first limiting hole 22 is provided in the plate groove 21, a first limiting member 4 is threadedly connected in the first limiting hole 22, the clamping plate 3 is provided on the outer side of the first limiting member 4, and is horizontally elastically connected to the plate groove 21 through a spring 25, a laterally extending clamping head 31 is provided on the clamping plate 3 and the bottom, and a second inclined surface 36 matching the first inclined surface 14 is provided at the bottom of the clamping head 31.

[0024] When the lightning protection module 2 is inserted into the mounting slot 11, the snap plate 3 and the snap head 31 are both inserted vertically downward into the slot 12. After the second inclined surface 36 of the snap head 31 conflicts with the first inclined surface 14 of the snap block 13, the first inclined surface 14 pushes the snap plate 3 to move elastically horizontally toward the plate slot 21. After the lightning protection module 2 is fully inserted into the mounting slot 11, the snap head 31 is lower than the snap block 13 in height. At this time, the snap plate 3 is driven by the spring 25 to move horizontally outward, and drives the snap head 31 to engage with the lower part of the snap block 13 to fix the lightning protection module 2 on the base 1. When the lightning protection module 2 needs to be pulled out of the mounting slot 11, it is only necessary to press the snap plate 3 horizontally to make it move horizontally toward the plate slot 21. The snap head 31 will disengage from the lower part of the snap block 13, and the two will no longer engage with each other to release the fixed connection between the lightning protection module 2 and the base 1. During the plugging and unplugging process of the lightning protection module 2 , no parts except the spring 25 will be deformed, thereby preventing the stability of the engagement between the engagement head 31 and the engagement block 13 from being reduced after multiple plugging and unplugging.

[0025] When the wiring terminals on both sides of the base 1 have been connected to the power system and the lightning protection module 2 can work normally, the first limit piece 4 can be screwed out into the first limit hole 22, and the screwed-in first limit piece 4 will block the inner side of the locking plate 3. After that, even if the locking plate 3 is pressed, the locking plate 3 will not move into the plate groove 21, so that the locking head 31 cannot be disengaged from the locking block 13, which greatly avoids the operator accidentally pulling the lightning protection module 2 out of the base 1 due to negligence.

[0026] like Figure 5As shown, in the present embodiment, a second limiting hole 23 is further provided in the plate slot 21, and a second limiting piece 5 that horizontally penetrates the engaging plate 3 is threadedly connected in the second limiting hole 23, and a limiting plate 51 is provided on the outer end portion of the second limiting piece 5, and the limiting plate 51 is located at the outer side of the engaging plate 3. After the second limiting piece 5 is screwed into the second limiting hole 23, the limiting plate 51 will resist the engaging plate 3 and drive the engaging plate 3 to move horizontally into the plate slot 21. According to the screwing-in distance of the second limiting piece 5, the engaging plate 3 can be moved in advance by different distances to shorten the time required for pressing the engaging plate 3 to release the engagement with the engaging block 13 by the engaging head 31. When the screwing-in distance of the second limiting piece 5 reaches the maximum, the engaging plate 3 will completely enter the plate slot 21, and the engaging head 31 will be separated from the bottom of the engaging block 13 to release the fixation of the lightning protection module 2. After that, the engaging plate 3 does not need to be pressed each time the lightning protection module 2 is plugged in or out.

[0027] like Figure 4 As shown, further, the engaging plate 3 is provided with a first through hole 32 and a second through hole 33, the outer end surface of the first stopper 4 is provided with a slot 41, the slot 41 is connected to the outside in the horizontal direction through the first through hole 32, the second stopper 5 movably passes through the second through hole 33, and the external thread at the end of the second stopper 5 can also pass through the second through hole 33 during the movement of the engaging plate 3, and a stopper groove 34 matching the stopper plate 51 is provided on the outer side of the second through hole 33, and a cross groove 52 is provided on the outer end surface of the stopper plate 51. Using a tool compatible with the slot 41 and the cross groove 52, the first stopper 4 and the second stopper 5 can be screwed in and out from the outer side of the engaging plate 3, so that the operator can quickly adjust the position state of the engaging plate 3.

[0028] like Figure 5 As shown, in the present embodiment, a plurality of spring grooves 26 are further provided in the plate groove 21, and the positioning column 24 extends horizontally outward from the innermost side of the spring groove 26, and the spring 25 is sleeved on the positioning column 24, and one end is inserted into the spring groove 26 and elastically connected thereto, and a plurality of positioning holes 35 for the positioning column 24 to move through are further provided on the snap plate 3, and the other end of the spring 25 is in contact with and elastically connected to the snap plate 3, so that the snap plate 3 is elastically connected to the plate groove 21 horizontally, and after the snap plate 3 is pressed, the spring 25 elastically contracts toward the spring groove 26, and the positioning hole 35 moves horizontally toward the plate groove 21 along the positioning column 24.

[0029] Furthermore, if Figure 3 As shown, it also includes a cover plate 6 arranged on the outside of the clamping plate 3, such as Figure 5 and Figure 6As shown, the cover plate 6 is provided with a plurality of buckles 62, and a plurality of buckle holes 27 fixedly engaged with the buckles 62 are provided on both sides of the plate slot 21. After the lightning protection module 2 is inserted into the mounting slot 11, the cover plate 6 is inserted into the upper part of the plate slot 21, and the cover plate 6 is flush with the top surface of the base 1. After the snap plate 3 is pressed, it moves horizontally in the cavity formed between the cover plate 6 and the plate slot 21. Furthermore, a fixing hole 61 for the positioning column 24 to be fixedly inserted is further provided on the side of the cover plate 6 facing the snap plate 3. When the second limiting member 5 is not screwed into the second limiting hole 23 and the snap plate 3 is not pressed, the cover plate 6 is in contact with the outer side surface of the snap plate 3 to prevent the snap plate 3 from being separated from the lightning protection module 2.

[0030] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A surge protector, comprising a base (1) and a lightning protection module (2), wherein the base (1) is provided with a mounting slot (11) for the lightning protection module (2) to be inserted into, and wherein: A clamping slot (12) is provided on both sides of the installation slot (11), a clamping block (13) is provided in the clamping slot (12), a plate slot (21) is provided on both sides of the lightning protection module (2), a first limiting hole (22) is provided in the plate slot (21), a first limiting member (4) is threadedly connected to the first limiting hole (22), a clamping plate (3) horizontally elastically connected to the plate slot (21) is further provided on the outside of the first limiting member (4), and a clamping plate (3) is provided at the bottom of the clamping plate (3). A snap-fit ​​head (31) is engaged under the snap-fit ​​block (13) to fixedly connect the lightning protection module (2) and the base (1); after the snap-fit ​​plate (3) is pressed, the snap-fit ​​head (31) is driven to move into the plate slot (21) and to disengage from below the snap-fit ​​block (13) to release the fixed connection between the lightning protection module (2) and the base (1); after the first limiting member (4) is rotated out toward the first limiting hole (22), the snap-fit ​​plate (3) is blocked to prevent it from moving into the plate slot (21) after being pressed.

2. The surge protector according to claim 1, characterized in that: A second limiting hole (23) is further provided in the plate groove (21), and a second limiting member (5) penetrating the engaging plate (3) is threadedly connected to the inner surface of the second limiting hole (23). A limiting plate (51) is provided at the end of the second limiting member (5) to block the outer side of the engaging plate (3). After the second limiting member (5) is screwed into the second limiting hole (23), the limiting plate (51) pushes the engaging plate (3) to move horizontally into the plate groove (21).

3. The surge protector according to claim 2, characterized in that: A slot (41) is also provided on the outer end surface of the first limiting member (4), and a first through hole (32) is also provided on the locking plate (3), wherein the slot (41) is connected to the outside in a horizontal direction through the first through hole (32).

4. The surge protector according to claim 3, characterized in that: A cross groove (52) is provided on the outer end surface of the limiting plate (51), and a second through hole (33) for the second limiting member (5) to pass through is also provided on the locking plate (3).

5. The surge protector according to claim 4, characterized in that: A limiting groove (34) matching the limiting plate (51) is provided on the outer side of the second through hole (33).

6. The surge protector according to claim 1, characterized in that: A plurality of positioning posts (24) are also provided in the plate slot (21), and a plurality of positioning holes (35) for the positioning posts (24) to movably pass through are also provided on the snap plate (3). A spring (25) is sleeved on the positioning post (24), and the two ends of the spring are respectively connected to the plate slot (21) and the snap plate (3), so as to elastically connect the plate slot (21) and the snap plate (3).

7. The surge protector according to claim 6, characterized in that: A spring slot (41) is also provided in the plate slot (21), the positioning column (24) extends from the spring slot (41), one end of the spring (25) is sleeved and inserted into the spring slot (41), and the other end is elastically connected to the locking plate (3).

8. The surge protector according to claim 1, characterized in that: The engaging block (13) is provided with a first inclined surface (14), and the engaging head (31) is provided with a second inclined surface (36) matching the first inclined surface (14).

9. The surge protector according to claim 1, characterized in that: It also includes a cover plate (6) arranged on the outside of the locking plate (3), the cover plate (6) being provided with a plurality of buckles (62), and a plurality of locking holes (27) fixedly engaged with the buckles (62) being provided on both sides of the plate slot (21), and after the lightning protection module (2) is inserted into the installation slot (11), the cover plate (6) is inserted into the upper part of the locking slot (12).

10. The surge protector according to claim 9, characterized in that: The cover plate (6) is provided with a fixing hole (61) on the side facing the locking plate (3) for the positioning column (24) to be fixedly inserted.

Images