A self-resetting over-voltage and under-voltage protector that is easy to disassemble and assemble

Abstract

The present invention relates to the technical field of protectors, and in particular to a self-resetting over- and under-voltage protector that is easy to disassemble and assemble. The self-resetting over- and under-voltage protector that is easy to disassemble and assemble is assembled on a fixed seat, and a slide rail is arranged on the fixed seat; the self-resetting over- and under-voltage protector that is easy to disassemble and assemble comprises a main body, and the main body is slidably sleeved on the slide rail; a first clamping part, a second clamping part and an adjusting part are arranged on the main body, and the first clamping part is used to clamp a live wire or a neutral wire; the second clamping part comprises two first clamping springs, and the two first clamping springs are symmetrically arranged, and the first clamping springs are hook-shaped structures, and the hook end of the first clamping spring is suspended, and the other end of the first clamping spring is fixedly arranged on the main body, and the two first clamping springs can both swing around their respective other ends to be elastically hooked on both sides of the slide rail through the hook end; the adjusting part is configured to be able to adjust the clamping force of the second clamping part on the slide rail, thereby simplifying the disassembly and assembly steps, improving the disassembly and assembly efficiency, and ensuring the installation effect.

Description

Technical Field

[0001] The invention relates to the technical field of protectors, and in particular to a self-resetting over- and under-voltage protector which is easy to assemble and disassemble. Background Art

[0002] The self-resetting overvoltage and undervoltage protector is an intelligent device used to protect electrical equipment from voltage anomalies (overvoltage or undervoltage). Its main function is to automatically cut off the power supply when the voltage exceeds the set range to prevent equipment damage, and automatically restore power supply after the voltage returns to normal without human intervention. It is widely used in residential, industrial and commercial places, suitable for single-phase AC voltage 220V, frequency 50Hz lines, and the rated working current is usually 60A and below.

[0003] In the related technology, for example, Chinese patent CN213547102U discloses a self-resetting over-voltage and under-voltage protector. When installing the self-resetting over-voltage and under-voltage protector, first, the fixing base is fixed on the wall or support surface where it needs to be installed by passing four second fastening bolts through four connecting through holes, and then the first notch at the lower end of the over-voltage and under-voltage protector body is fitted on the fixing slide, and the over-voltage and under-voltage protector body is moved left and right on the fixing slide to make it completely fit on the fixing slide. At this time, the first fastening bolt is passed through the connecting hole and the threaded hole in sequence to fix it to the fixing base to complete the installation.

[0004] Although the above-mentioned self-resetting over- and under-voltage protector can automatically cut off the power supply when the circuit is abnormal, it is found in the actual disassembly and assembly process that it relies on multiple first fastening bolts, which need to be passed through the connecting holes one by one and then tightened with the threaded holes to firmly fix the protector on the fixing seat. Although such installation can ensure stability, when it is necessary to disassemble, the operator has to operate in reverse and unscrew the multiple first fastening bolts in turn, which makes the whole process not only cumbersome, but also extremely time-consuming and energy-consuming, greatly reducing the efficiency of operation and maintenance work. Summary of the invention

[0005] Based on this, it is necessary to provide an easy-to-disassemble self-resetting over- and under-voltage protector to address the problems of troublesome operation, time-consuming and labor-intensive operation during the disassembly and assembly of the current self-resetting over- and under-voltage protector.

[0006] The above purpose is achieved through the following technical solutions:

[0007] A self-resetting over- and under-voltage protector that is easy to disassemble and assemble, the self-resetting over- and under-voltage protector that is easy to disassemble and assemble is assembled on a fixed seat, and a slide rail is arranged on the fixed seat; the self-resetting over- and under-voltage protector that is easy to disassemble and assemble comprises a body, and the body is sleeved on the slide rail when installed, and can slide along the slide rail; at least four first clamping parts and an equal number of second clamping parts and at least one second clamping part and an adjusting part are arranged on the body, and the first clamping part is configured to clamp a live wire or a neutral wire; the second clamping part comprises two first clamping springs, and the two first clamping springs are symmetrically arranged, the first clamping springs are arranged as a hook-shaped structure, the hook end of the first clamping spring is suspended, and the other end of the first clamping spring is fixedly arranged on the body, and the two first clamping springs can swing around their respective other ends to be elastically hooked on both sides of the slide rail through the hook end; the adjusting part is configured to adaptively adjust the clamping force of the second clamping part on the slide rail when the body and the fixed seat have a tendency to move relative to each other.

[0008] Furthermore, the adjusting portion includes two levers, the two levers are symmetrically arranged, and the levers can rotate around a first axis, and the first axis extends along an extension direction parallel to the slide rail; the first end of the lever exposes the body, and the second end of the lever is located in the body; the end of each of the second ends of the lever is hinged with a connecting rod, and the end of each of the connecting rods away from the end of the lever is hinged with a sliding block, and the sliding block can slide along an extension direction perpendicular to the slide rail and can form a sliding fit with the first clamping spring; the lever has a corresponding first position and a second position before rotation, and when in the first position, the two levers are in an eight-shaped structure, and the small opening faces the slide rail, and the sliding block is arranged away from the slide rail; when in the second position, the two levers are in an eight-shaped structure, and the small opening faces away from the slide rail, and the sliding block abuts against the slide rail.

[0009] Furthermore, the first clamping portion includes two second clamping springs, and the two second clamping springs are arranged in abutment with each other along an extension direction perpendicular to the slide rail; the second clamping spring is arranged as an arc-shaped strip structure, and the outer arc surfaces of the two second clamping springs are arranged opposite to each other, and are configured to be able to clamp on both sides of the live wire or the neutral wire respectively.

[0010] Furthermore, the easily disassembled self-resetting over- and under-voltage protector further comprises a reinforcement portion, and the reinforcement portion is configured to increase the clamping force of the first clamping portion on the live wire or the neutral wire.

[0011] Furthermore, the reinforcement part includes two push rods and at least four pressing blocks, and the push rods and the shift rods are corresponding and fixedly arranged; the pressing blocks can elastically slide along the extension direction perpendicular to the slide rail, and form a stop fit with the push rods, and can be pressed on the second clamping spring sheet.

[0012] Furthermore, the reinforcement portion further includes at least four elastic members, wherein the elastic members are connected between the pressing block and the body, and under the action of the elastic members, the pressing block has a tendency to move in a direction away from the slide rail.

[0013] Furthermore, the elastic member is a compression spring.

[0014] Furthermore, a circular clamping area is formed between the two second clamping springs; the live wire or the neutral wire passes through the clamping area during installation.

[0015] Furthermore, when there are two or more second clamping parts, the levers with different adjustment parts located on the same side are integrally connected.

[0016] Furthermore, the sliding blocks with different adjusting parts located on the same side are integrally connected.

[0017] The beneficial effects of the present invention are:

[0018] The self-resetting over- and under-voltage protector which is easy to disassemble and assemble involved in the present invention is first sleeved on the slide rail during the installation process; during the sleeved process of the body, when the body and the slide rail are fitted, as the body continues to move, under the push of the slide rail, the two first clamping springs first swing outward around their own non-hook ends, and then swing inward around their own non-hook ends under the elastic action, so as to be elastically hooked on both sides of the slide rail through the hook ends, thereby achieving preliminary fixation of the body; then the body is moved along the slide rail to a suitable position; when the body and the fixed seat have a tendency to move relative to each other, the clamping force of the second clamping part on the slide rail can be adaptively adjusted through the adjustment part, thereby achieving adjustment of the clamping performance of the second clamping part; the removal process is opposite to the installation process; thereby simplifying the disassembly and assembly steps and improving the disassembly and assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the three-dimensional structure of the self-resetting over- and under-voltage protector that is easy to disassemble and assemble provided by an embodiment of the present invention when it is assembled on a fixing base;

[0020] Figure 2 A cross-sectional view of the self-resetting over- and under-voltage protector that is easy to disassemble and assemble provided by an embodiment of the present invention when assembled on a fixing seat Figure 1 ;

[0021] Figure 3 for Figure 2A schematic diagram of the partially enlarged structure at center A;

[0022] Figure 4 for Figure 3 A schematic diagram of the partially enlarged structure at B in the middle;

[0023] Figure 5 A cross-sectional view of the self-resetting over- and under-voltage protector that is easy to disassemble and assemble provided by an embodiment of the present invention when assembled on a fixing seat Figure 2 ;

[0024] Figure 6 A schematic diagram of the three-dimensional structure of a self-resetting over- and under-voltage protector which is easy to disassemble and assemble and has a main body removed provided by an embodiment of the present invention;

[0025] Figure 7 A three-dimensional cross-sectional view of the main body of the self-resetting over- and under-voltage protector that is easy to disassemble and assemble provided by an embodiment of the present invention Figure 1 ;

[0026] Figure 8 A three-dimensional cross-sectional view of the main body of the self-resetting over- and under-voltage protector that is easy to disassemble and assemble provided by an embodiment of the present invention Figure 2 ;

[0027] Fig. 9 A schematic diagram of the three-dimensional structure of the two second clamping springs of the easily disassembled self-resetting over- and under-voltage protector provided by an embodiment of the present invention during assembly.

[0028] in:

[0029] 1. Fixed seat; 101. Slide rail; 1011. First inclined plane; 1012. Second inclined plane; 1013. Third inclined plane;

[0030] 2. Main body; 201. Mounting shaft; 202. First notch; 203. Mounting hole; 204. Mounting slot; 205. Wire slot;

[0031] 301, second clamping spring; 3011, clamping area;

[0032] 401, first clamping spring; 4011, transition section; 4012, fourth inclined plane; 4013, fifth inclined plane; 4014, sixth inclined plane; 4015, seventh inclined plane; 4016, eighth inclined plane;

[0033] 5. Adjustment unit; 501. lever; 502. connecting rod; 503. sliding block;

[0034] 6. Strengthening part; 601. Push rod; 602. Pressing block. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0036] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned herein, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0037] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0038] like Figures 1 to 9 As shown, the self-resetting over-undervoltage protector that is easy to disassemble and assemble provided by the embodiment of the present invention is assembled on a fixing seat 1, and a slide rail 101 is arranged on the fixing seat 1; the self-resetting over-undervoltage protector that is easy to disassemble and assemble comprises a body 2, which is sleeved on the slide rail 101 during installation and can slide along the slide rail 101; at least four first clamping parts and an equal number of at least one second clamping part, and an adjusting part 5 are arranged on the body 2, and the first clamping part is configured to clamp the live wire or the neutral wire; the second clamping part comprises two first clamping springs 401, The two first clamping springs 401 are symmetrically arranged, and the first clamping springs 401 are arranged as a hook-shaped structure. The hook end of the first clamping spring 401 is suspended, and the other end of the first clamping spring 401 is fixedly arranged on the main body 2. The two first clamping springs 401 can swing around their respective other ends so as to be elastically hooked on both sides of the slide rail 101 through the hook end; the adjustment part 5 is configured to be able to adaptively adjust the clamping force of the second clamping part on the slide rail 101 when the main body 2 and the fixed seat 1 have a tendency to move relative to each other.

[0039] Specifically in this embodiment, Figure 1 As shown, the fixing seat 1 is set as a straight plate structure, and the plate surface is set horizontally; the slide rail 101 is set on the top of the fixing seat 1, and is set as a strip structure, and extends in a length direction parallel to the fixing seat 1; Figure 2 As shown, the cross-sectional shape of the slide rail 101 is set to be T-shaped; in order to facilitate the body 2 to be sleeved on the slide rail 101, as shown in FIG. Figure 1 As shown, a C-shaped first notch 202 is provided at the bottom of the body 2 , and the first notch 202 is arranged upward. When installing, the body 2 is sleeved on the slide rail 101 through the first notch 202 .

[0040] Taking the number of the second clamping parts as three as an example, the three second clamping parts are arranged side by side along the width direction of the body 2; taking one of the second clamping parts as an example, Figure 2 As shown, the first clamping spring piece 401 is set to an L-shaped structure, and the hook end of the first clamping spring piece 401 faces the slide rail 101, the two first clamping spring pieces 401 are symmetrically inserted into the first notch 202, and the top of the first clamping spring piece 401 is fixed on the body 2.

[0041] Taking the number of the first clamping parts as four as an example, in order to facilitate the installation of the first clamping parts, as shown in FIG. Figure 8 As shown, two wire grooves 205 are provided on the front and rear side walls of the main body 2, and the two wire grooves 205 on the same side wall are arranged at intervals along the width direction of the main body 2; the first clamping portion is inserted into the wire groove 205 during installation and is electrically connected to the electrical components inside the main body 2.

[0042] It is understandable that in order to improve the smoothness of the first clamping spring 401 clamping the slide rail 101, as shown in FIG. Figure 4 As shown, the tops of the left and right side walls of the large end of the slide rail 101 are chamfered to form a first inclined surface 1011; the bottom of the end of the hook end of the first clamping spring piece 401 is chamfered to form a fourth inclined surface 4012, so that during use, when the first clamping spring piece 401 and the slide rail 101 are in contact, as the main body 2 continues to move, the first inclined surface 1011 and the fourth inclined surface 4012 contact and push each other, so that the first clamping spring piece 401 can smoothly swing outward around its own top end to avoid interference.

[0043] During the installation process, the fixing base 1 is first fixed on the wall by bolts; then the main body 2 is sleeved on the slide rail 101 with the first notch 202 facing the fixing base 1; during the movement of the main body 2, when the first clamping spring piece 401 and the slide rail 101 are in contact, as the main body 2 continues to move, the two first clamping spring pieces 401 first swing outward around their own top ends under the push of the slide rail 101; when the hook end of the first clamping spring piece 401 passes over the large end of the slide rail 101, it swings inward around its own top end under the action of elasticity, and is elastically hooked on both sides of the slide rail 101 to achieve preliminary fixation of the main body 2; then the main body 2 is moved along the slide rail 101 to a suitable position, and when the main body 2 and the fixing base 1 have a tendency to move relative to each other, the clamping force of the second clamping part on the slide rail 101 is adaptively adjusted through the adjustment part 5 to achieve the adjustment of the clamping performance of the second clamping part; the removal process is opposite to the installation process; thereby simplifying the disassembly and assembly steps and improving the disassembly and assembly efficiency.

[0044] Then the live wire and the neutral wire are clamped by the first clamping part, so as to protect the live wire and the neutral wire through the self-resetting over- and under-voltage protector which is easy to disassemble and assemble.

[0045] In a further embodiment, the adjusting portion 5 is configured to include two levers 501, the two levers 501 are symmetrically arranged, and the levers 501 can rotate around a first axis, the first axis extends in a direction parallel to the extension of the slide rail 101; the first end of the lever 501 is exposed from the body 2, and the second end of the lever 501 is located in the body 2; the end of the second end of each lever 501 is hinged with a connecting rod 502, and the end of each connecting rod 502 away from the lever 501 is hinged with a sliding block 503, and the sliding block 503 is hinged to the end of the connecting rod 502. The block 503 can slide along an extension direction perpendicular to the slide rail 101, and can form a sliding fit with the first clamping spring sheet 401; the lever 501 has a corresponding first position and a second position before rotation. When in the first position, the two levers 501 are in an eight-shaped structure, and the small opening faces the slide rail 101, and the sliding block 503 is set away from the slide rail 101; when in the second position, the two levers 501 are in an eight-shaped structure, and the small opening faces away from the slide rail 101, and the sliding block 503 abuts against the slide rail 101.

[0046] Specifically in this embodiment, there are three adjusting parts 5, and the three adjusting parts 5 are arranged at equal intervals along the width direction of the body 2; in order to facilitate the installation of the adjusting parts 5, as shown in FIG. Figure 1 and Figure 7 As shown, six mounting holes 203 are opened on the top of the main body 2, and the six mounting holes 203 are divided into two groups. The two groups are arranged at intervals along the length direction of the main body 2, and the three mounting holes 203 in the same group are arranged at equal intervals along the width direction of the main body 2, and the mounting holes 203 are connected to the first notch 202.

[0047] Take one of the adjustment parts 5 as an example. Figure 2As shown, the left-side lever 501 is inserted into the left-side mounting hole 203 and extends in the upper left direction. The left end of the lever 501 extends out of the body 2 for manual shifting. The right end of the lever 501 is inserted into the mounting hole 203. The connecting rod 502 is hinged at the right end of the lever 501 and extends in the lower left direction. The top of the sliding block 503 is hinged at the bottom end of the connecting rod 502. The right-side lever 501 is inserted into the right-side mounting hole 203 and extends in the upper right direction. The right end of the lever 501 extends out of the body 2 for manual shifting. The left end of the lever 501 is inserted into the mounting hole 203. The connecting rod 502 is hinged at the left end of the lever 501 and extends in the lower right direction. The top of the sliding block 503 is hinged at the bottom end of the connecting rod 502.

[0048] To facilitate the lever 501 to rotate around the first axis, Figure 7 As shown, a mounting shaft 201 is inserted into each mounting hole 203, the axis of the mounting shaft 201 extends along the width direction of the body 2, and the mounting shaft 201 is arranged near the top of the mounting hole 203; Figure 2 As shown, the lever 501 is sleeved on the mounting shaft 201 during installation, and the length of the lever 501 above the mounting shaft 201 is greater than the length of the lever 501 below the mounting shaft 201; the first axis coincides with the axis of the mounting shaft 201.

[0049] like Figure 2 As shown, at this time, the lever 501 is in the first position, the two levers 501 together form an eight-shaped structure, and the small opening is set downward, and the lever 501 and the connecting rod 502 on the same side together form a V-shaped structure, and the opening of the V-shaped structure is set outward.

[0050] During the installation process, after the two first clamping springs 401 of the same second clamping part are elastically hooked on both sides of the slide rail 101, the two levers 501 of the same adjustment part 5 are manually pushed inward at the same time, and the levers 501 rotate around the installation axis 201 at the same time, and synchronously drive the sliding block 503 to slide downward through the connecting rod 502; when the two levers 501 rotate to the point where the small mouth of the eight-shaped structure they form is facing upward, the sliding block 503 simultaneously abuts against the top of the slide rail 101 to perform secondary fixation on the body 2. At this time, the levers 501 and the connecting rod 502 on the same side together form a V-shaped structure, and the opening of the V-shaped structure is set inward, and then when the body 2 and the fixing seat 1 have a tendency to move relative to each other, the opening angle of the V-shaped structure has a tendency to shrink. However, due to the fixed shape of the mounting hole 203, the opening angle of the V-shaped structure cannot be reduced, thereby being able to resist the relative movement between the body 2 and the fixing seat 1, so as to adaptively adjust the clamping force of the second clamping part on the slide rail 101.

[0051] During the disassembly process, the two levers 501 of the same adjustment part 5 are manually pushed outward at the same time, and the lever 501 rotates around the installation axis 201 at the same time, and synchronously drives the sliding block 503 to slide upward through the connecting rod 502; during the upward movement of the sliding block 503, the sliding block 503 pushes the first clamping spring piece 401 to swing outward, so that the hook end of the first clamping spring piece 401 is disengaged from the clamping connection between the large end of the slide rail 101, and at this time, the main body 2 is pulled upward to remove the main body 2 from the slide rail 101.

[0052] It is understandable that in order to avoid affecting the clamping effect of the first clamping spring 401 on the slide rail 101, Figure 3 As shown, a transition section 4011 is provided on the side wall surface where the first clamping spring piece 401 and the sliding block 503 contact, and the transition section 4011 is located in the middle part of the first clamping spring piece 401, and the thickness of the first clamping spring piece 401 above the transition section 4011 is greater than the thickness of the first clamping spring piece 401 below the transition section 4011, so that when the sliding block 503 contacts the first clamping spring piece 401 above the transition section 4011, the first clamping spring piece 401 can be in a vertical state under the push of the sliding block 503, so that the hook end of the first clamping spring piece 401 can smoothly pass over the large end of the slide rail 101; when the sliding block 503 contacts the first clamping spring piece 401 below the transition section 4011, the first clamping spring piece 401 can restore the inclined state under the action of its own elasticity, so as to achieve hook connection with the large end of the slide rail 101.

[0053] It is understandable that in order to improve the smoothness of the hook end of the first clamping spring 401 when it is inserted into and removed from the large end of the slide rail 101, as shown in FIG. Figure 4 As shown, a second inclined surface 1012 and a third inclined surface 1013 are provided at the bottom of the large end of the slide rail 101, wherein the second inclined surface 1012 is connected to the side wall surface of the small end of the slide rail 101, the third inclined surface 1013 is in contact with the side wall surface of the large end of the slide rail 101, and the second inclined surface 1012 extends obliquely in the upper left direction, and the third inclined surface 1013 extends obliquely in the upper right direction; a fifth inclined surface 4013 is provided on the outer hook surface of the hook end of the first clamping spring sheet 401, and the fifth inclined surface 401 3 extends obliquely in the upper right direction and contacts with the fourth oblique surface 4012 at the same time, and a sixth oblique surface 4014, a seventh oblique surface 4015 and an eighth oblique surface 4016 are continuously arranged on the inner hook surface of the hook end of the first clamping spring piece 401, wherein the sixth oblique surface 4014 extends obliquely in the upper right direction, the seventh oblique surface 4015 extends obliquely in the lower right direction, and the eighth oblique surface 4016 extends obliquely in the upper right direction and is connected to the side wall surface of the first clamping spring piece 401 below the transition section 4011.

[0054] During the installation process, the hook end of the first clamping spring 401 first contacts the large end of the slide rail 101, then moves downward along the large end of the slide rail 101 until it contacts the third inclined surface 1013, and then swings downward along the third inclined surface 1013 while abutting against the side wall surface of the small end of the slide rail 101, so that the seventh inclined surface 4015 corresponds to the second inclined surface 1012, and the eighth inclined surface 4016 corresponds to the third inclined surface 1013; when the main body 2 and the fixing seat 1 have a tendency to move relative to each other, at this time, the opening angle of the V-shaped structure formed by the shift rod 501 and the connecting rod 502 has a tendency to shrink, so that the seventh inclined surface 4015 contacts the second inclined surface 1012, and the eighth inclined surface 4016 contacts the third inclined surface 1013, so as to achieve the clamping connection, and because the shape of the mounting hole 203 is fixed, the opening angle of the V-shaped structure cannot be reduced, thereby being able to resist the relative movement between the main body 2 and the fixing seat 1.

[0055] During the disassembly process, when the sliding block 503 passes over the transition section 4011, the first clamping spring 401 swings outward under the push of the sliding block 503. At this time, the seventh inclined surface 4015 first contacts the second inclined surface 1012 and slides along the second inclined surface 1012, and then switches from the second inclined surface 1012 to the third inclined surface 1013 to achieve disengagement.

[0056] In a further embodiment, the first clamping portion is configured to include two second clamping springs 301, and the two second clamping springs 301 are arranged in abutment with each other along an extension direction perpendicular to the slide rail 101; the second clamping springs 301 are configured to be an arc-shaped strip structure, and the outer arc surfaces of the two second clamping springs 301 are arranged opposite to each other, and are configured to be able to clamp on both sides of the live wire or the neutral wire respectively.

[0057] Specifically in this embodiment, Figure 5 and Fig. 9 As shown, the second clamping spring piece 301 is inserted into the wire loading groove 205 during installation and extends in a direction parallel to the wire loading groove 205, wherein the outer arc surface of the second clamping spring piece 301 located at the top is located on the lower side, and the outer arc surface of the second clamping spring piece 301 located at the bottom is located on the upper side, so as to achieve a relative abutment setting.

[0058] During installation of the live wire or neutral wire, first insert the live wire or neutral wire into the wire slot 205. As the live wire or neutral wire is inserted, the two second clamping springs 301 move away from each other under the push of the live wire or neutral wire, and clamp the live wire or neutral wire through their own elastic action.

[0059] In a further embodiment, the self-resetting over- and under-voltage protector that is easy to assemble and disassemble is configured to further include a reinforcement portion 6, and the reinforcement portion 6 is configured to increase the clamping force of the first clamping portion on the live wire or the neutral wire.

[0060] During use, the first clamping portion firstly clamps the live wire or the neutral wire through its own elastic action, and then the reinforcing portion 6 not only clamps the live wire or the neutral wire for the second time, but also improves the clamping force on the live wire or the neutral wire.

[0061] In a further embodiment, the reinforcement portion 6 is configured to include two push rods 601 and at least four pressing blocks 602, and the push rods 601 and the lever 501 correspond and are fixedly arranged; the pressing blocks 602 can elastically slide along the extension direction of the vertical slide rail 101, and form a stop fit with the push rod 601, and can be pressed on the second clamping spring sheet 301.

[0062] Specifically in this embodiment, Figure 6 As shown, the push rod 601 is configured as a round rod structure and extends in a direction perpendicular to the extension direction of the lever 501, and is vertically inserted into the three levers 501 on the same side; in order to facilitate the installation of the push rod 601 and the pressing block 602, as shown in FIG. Figure 5 , Figure 7 and Figure 8 As shown, a mounting groove 204 is opened in the main body 2, and the mounting groove 204 extends along the width direction of the main body 2, and is connected with the mounting hole 203 and the wiring groove 205 at the same time. The push rod 601 is inserted into the mounting groove 204 during installation; the pressing block 602 is set as a straight plate-like structure, and a second notch is opened at the top of the straight plate-like structure, and a protruding structure is set at the bottom of the straight plate-like structure, so that the shape of the cross-section of the pressing block 602 is set as a bull head-like structure, and the push rod 601 is inserted into the second notch and the mounting groove 204 at the same time, and pressed on the top of the pressing block 602.

[0063] During use, if Figure 5 As shown, the setting of the push rod 601, on the one hand, when the lever 501 switches from the first position to the second position, the push rod 601 is driven by the lever 501 to move synchronously along an arc trajectory in the lower right direction, and the push rod 601 synchronously drives the pressing block 602 to move downward, so that the protruding structure of the pressing block 602 enters the wire loading groove 205 and presses on the top of the second clamping spring piece 301 located above, so that the second clamping spring piece 301 located above is elastically deformed, and the force is transmitted to the second clamping spring piece 301 located below through the live wire or the neutral wire, so that the second clamping spring piece 301 located below is elastically deformed, thereby increasing the clamping force on the live wire or the neutral wire; on the other hand, it can synchronously drive all the levers 501 on the same side to move synchronously, thereby avoiding the tedious operation of adjusting the levers 501 one by one.

[0064] In a further embodiment, in order to facilitate the elastic sliding of the pressing block 602, the reinforcing portion 6 is configured to also include at least four elastic members, which are connected between the pressing block 602 and the main body 2. Under the action of the elastic members, the pressing block 602 has a tendency to move away from the slide rail 101.

[0065] Specifically in this embodiment, the elastic member can be set as a compression spring. During installation, the compression spring is inserted into the installation groove 204 and is vertically arranged, with the top end abutting against the pressing block 602 and the bottom end fixed on the main body 2. Under the action of the compression spring, the pressing block 602 has a tendency to move upward.

[0066] In other embodiments, the elastic member can also be configured as a tension spring, which is inserted into the installation groove 204 during installation and is vertically arranged, with the bottom end fixed on the pressing block 602 and the top end fixed on the main body 2. Under the action of the tension spring, the pressing block 602 has a tendency to move upward.

[0067] In other embodiments, in order to further improve the clamping stability of the first clamping portion on the live wire or the neutral wire, a circular clamping area 3011 is formed between the two second clamping springs 301; the live wire or the neutral wire passes through the clamping area 3011 during installation.

[0068] Specifically in this embodiment, Fig. 9 As shown, the cross-sectional shape of the second clamping spring piece 301 is set to be an arc, and two arc bars are symmetrically arranged on the two arc edges of the second clamping spring piece 301. The arc bars are set to be an arc structure, and the two ends are high and the middle is low. The inner arc surfaces of the two second clamping spring pieces 301 are arranged relatively to form a circular clamping area 3011, so that when the live wire or the neutral wire passes through the clamping area 3011, it can be completely wrapped by the two second clamping spring pieces 301 along the circumferential direction, thereby increasing the contact area between the second clamping spring piece 301 and the live wire or the neutral wire.

[0069] In other embodiments, in order to improve the convenience of operation, it is configured that when there are two or more second clamping parts, the levers 501 of different adjustment parts 5 located on the same side are integrally connected.

[0070] Specifically in this embodiment, Figure 6 As shown, the tops of the three levers 501 are connected to a cross bar, so that the cross bar and the three levers 501 form an E-shaped structure, thereby facilitating the synchronous movement of the three levers 501 through the cross bar.

[0071] It is understandable that the cross bar and the lever 501 can be connected by a stable welding process to ensure that they will not become loose or disconnected even after long-term use.

[0072] It is understandable that the surface of the crossbar can be frosted, which, on the one hand, increases the friction when the hand contacts the crossbar to prevent the hand from slipping during the shifting process; on the other hand, it improves the texture of the crossbar and provides the operator with a more comfortable holding experience.

[0073] In a further embodiment, the sliding blocks 503 of different adjusting parts 5 located on the same side are integrally connected.

[0074] Specifically in this embodiment, Figure 6 As shown, the three sliding blocks 503 on the same side are connected by connecting blocks so that the three sliding blocks 503 form an integral structure, thereby avoiding the cumbersome processes during processing and assembly, reducing inventory management costs, and making the production chain more compact and efficient; on the other hand, when the equipment encounters vibration, impact and other working conditions during long-term operation, the integrally connected sliding blocks 503 can disperse the external force more evenly as a coordinated whole, reduce the probability of wear and deviation of a single sliding block 503 due to uneven force, and effectively extend the service life of the sliding block 503.

[0075] In combination with the above embodiments, the use principle and working process of the embodiments of the present invention are as follows:

[0076] During the installation process, the fixing base 1 is first fixed on the wall by bolts; then the main body 2 is sleeved on the slide rail 101 with the first notch 202 facing the fixing base 1; during the movement of the main body 2, the hook end of the first clamping spring 401 first contacts the large end of the slide rail 101, then moves downward along the large end of the slide rail 101 until it contacts the third inclined surface 1013, and then moves downward and inward along the third inclined surface 1013 until it abuts against the side wall surface of the small end of the slide rail 101, so that the seventh inclined surface 4015 corresponds to the second inclined surface 1012, and the eighth inclined surface 4016 corresponds to the third inclined surface 1013.

[0077] Then the live wire or the neutral wire is inserted into the wire slot 205. As the live wire or the neutral wire is inserted, the two second clamping springs 301 move away from each other under the push of the live wire or the neutral wire, and clamp the live wire or the neutral wire through their own elastic action.

[0078] Then, the two cross bars are manually pushed inward at the same time, and the cross bars drive the lever 501 to rotate around the mounting shaft 201 at the same time, and on the other hand, the sliding block 503 is synchronously driven to slide downward through the connecting rod 502; when the two levers 501 are rotated to the point where the small opening of the eight-shaped structure they form is facing upward, the sliding block 503 simultaneously abuts against the top of the slide rail 101. At this time, the lever 501 and the connecting rod 502 on the same side together form a V-shaped structure, and the opening of the V-shaped structure is set inward, and then when the body 2 and the fixed seat 1 have a tendency to move relative to each other, the opening angle of the V-shaped structure has a tendency to shrink. However, due to the fixed shape of the mounting hole 203, the opening angle of the V-shaped structure cannot be reduced, thereby being able to resist the relative movement between the body 2 and the fixed seat 1, so as to adaptively adjust the clamping force of the second clamping portion on the slide rail 101.

[0079] On the other hand, the push rod 601 is driven to move synchronously along an arc trajectory in the lower right direction. The push rod 601 simultaneously drives the pressing block 602 to move downward and simultaneously compresses the compression spring, so that the protrusion of the pressing block 602 enters the wire loading groove 205 and presses on the top of the second clamping spring 301 located above, so as to increase the clamping force on the live wire or the neutral wire.

[0080] When the main body 2 and the fixing seat 1 have a tendency to move relative to each other, the opening angle of the V-shaped structure formed by the lever 501 and the connecting rod 502 tends to decrease, so that the seventh inclined surface 4015 contacts the second inclined surface 1012, and the eighth inclined surface 4016 contacts the third inclined surface 1013, thereby achieving a snap connection. Since the shape of the mounting hole 203 is fixed, the opening angle of the V-shaped structure cannot be reduced, thereby being able to resist the relative movement between the main body 2 and the fixing seat 1.

[0081] During the disassembly process, the cross bar is manually pushed outward at the same time, and the cross bar drives the push rod 501 to rotate around the installation axis 201 at the same time, and on the one hand, it drives the sliding block 503 to slide upward through the connecting rod 502, and on the other hand, it drives the push rod 601 to move along the arc trajectory in the upper left direction, and the pressing block 602 is automatically reset under the action of the compression spring; in the process of the sliding block 503 moving upward, when the sliding block 503 passes the transition section 4011, the first clamping spring 401 swings outward under the push of the sliding block 503, and at this time the seventh inclined surface 4015 first contacts the second inclined surface 1012 and slides along the second inclined surface 1012, and then switches from the second inclined surface 1012 to the third inclined surface 1013 to disengage the card connection with the large end of the slide rail 101, and at this time, the main body 2 is pulled upward to remove the main body 2 from the slide rail 101.

[0082] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0083] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A self-resetting over- and under-voltage protector that is easy to disassemble and assemble, characterized in that: The self-resetting over- and under-voltage protector that is easy to disassemble is assembled on a fixed seat, and a slide rail is arranged on the fixed seat; the self-resetting over- and under-voltage protector that is easy to disassemble includes a body, and the body is sleeved on the slide rail when installed, and can slide along the slide rail; at least four first clamping parts and an equal number of at least one second clamping parts and an adjusting part are arranged on the body, and the first clamping part is configured to clamp the live wire or the neutral wire; the second clamping part includes two first clamping springs, and the two first clamping springs are symmetrically arranged, and the first clamping springs are arranged as a hook-shaped structure, and the hook end of the first clamping spring is suspended, and the other end of the first clamping spring is fixedly arranged on the body, and the two first clamping springs can swing around their respective other ends, so as to be elastically hooked to the two sides of the slide rail through the hook end; the adjusting part is configured to adaptively adjust the clamping force of the second clamping part on the slide rail when the body and the fixed seat have a tendency to move relative to each other; The adjusting part includes two levers, the two levers are symmetrically arranged, and the levers can rotate around a first axis, and the first axis extends along an extension direction parallel to the slide rail; the first end of the lever exposes the body, and the second end of the lever is located in the body; the end of each of the second ends of the lever is hinged with a connecting rod, and the end of each of the connecting rods away from the end of the lever is hinged with a sliding block, and the sliding block can slide along an extension direction perpendicular to the slide rail and can form a sliding fit with the first clamping spring; the lever has a corresponding first position and a second position before rotation, and when in the first position, the two levers are in an eight-shaped structure, and the small opening faces the slide rail, and the sliding block is arranged away from the slide rail; when in the second position, the two levers are in an eight-shaped structure, and the small opening faces away from the slide rail, and the sliding block abuts against the slide rail.

2. The easily disassembled self-resetting over- and under-voltage protector according to claim 1, characterized in that: The first clamping portion includes two second clamping springs, and the two second clamping springs are arranged in abutment with each other along an extension direction perpendicular to the slide rail; the second clamping spring is arranged as an arc-shaped strip structure, and the outer arc surfaces of the two second clamping springs are arranged opposite to each other and are configured to be able to clamp on both sides of the live wire or the neutral wire respectively.

3. The easily disassembled self-resetting over- and under-voltage protector according to claim 2, characterized in that: The self-resetting over- and under-voltage protector that is easy to assemble and disassemble further comprises a reinforcement portion, and the reinforcement portion is configured to increase the clamping force of the first clamping portion on the live wire or the neutral wire.

4. The easily disassembled self-resetting over- and under-voltage protector according to claim 3, characterized in that: The reinforcement part includes two push rods and at least four pressing blocks, and the push rods and the shift rods are corresponding and fixedly arranged; the pressing blocks can elastically slide along the extension direction perpendicular to the slide rail, and form a stop fit with the push rods, and can be pressed on the second clamping spring sheet.

5. The easily disassembled self-resetting over- and under-voltage protector according to claim 4, characterized in that: The reinforcing portion further comprises at least four elastic members, wherein the elastic members are connected between the pressing block and the body, and under the action of the elastic members, the pressing block has a tendency to move in a direction away from the slide rail.

6. The easily disassembled self-resetting over- and under-voltage protector according to claim 5, characterized in that: The elastic member is a compression spring.

7. The easily disassembled self-resetting over- and under-voltage protector according to claim 2, characterized in that: A circular clamping area is formed between the two second clamping springs; the live wire or the neutral wire passes through the clamping area during installation.

8. The self-resetting over-voltage and under-voltage protector that is easy to disassemble and assemble according to claim 1, characterized in that: When there are two or more second clamping parts, the levers with different adjusting parts located on the same side are integrally connected.

9. The easily disassembled self-resetting over- and under-voltage protector according to claim 8, characterized in that: The sliding blocks with different adjusting parts located on the same side are integrally connected.

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