Locking structure of circuit breaker deflector rod

Abstract

The invention provides a locking structure of a circuit breaker driving lever, and relates to the technical field of circuit breakers, and the locking structure comprises a combined housing which is a combined structure and is composed of two groups of housing bodies; tandem sleeves are fixedly arranged above the front end and the rear end of the combined shell; two sets of positioning clamping plates are fixedly arranged on the upper portion of the interior of the combined shell, and a side positioning plate is fixedly clamped between the two sets of positioning clamping plates. A control shifting button is rotationally arranged between the two groups of side positioning plates; a stable self-locking function is set, the control toggle button is toggled, the control toggle button rotates by 90 degrees to drive the tension spring set to rotate downwards, at the moment, the tension spring set is matched with the arc-shaped through groove to still provide a locking effect, and the upper end and the lower end of the arc-shaped through groove are both far away from the front side shaft end. After the locking hinged support passes through the middle position of the arc-shaped through groove, the acting force direction is automatically adjusted and changed, the tension spring set is kept in a straight state and does not deform, and the problem that an existing locking structure is inconvenient to stably self-lock is solved.

Description

Technical Field

[0001] The invention relates to the technical field of circuit breakers, and in particular to a locking structure of a circuit breaker lever. Background Art

[0002] The lever of a commonly used circuit breaker is controlled by two sets of tension springs. The angle is used to limit the force of the two sets of tension springs to open and close the circuit, and the circuit is broken by an electromagnet. When the circuit is short-circuited, the current will increase by more than ten times, thereby increasing the magnetism of the electromagnet to break the circuit.

[0003] The locking structure currently used has the following disadvantages: 1. The tension spring force used in the existing lever lock is different, and the tension spring is in a bent state, which will affect the service life and may be deformed, which is not conducive to stable control and lacks stable self-locking function; 2. Existing circuit breakers mainly disconnect arcs through fixed grids, which requires a separate space, takes up a large space, and is inconvenient to switch with the power connection structure; 3. The assembly terminals are mainly fixed by bolting copper sheets, which are prone to loosening and displacement during the locking process. Summary of the invention

[0004] In view of this, the present invention provides a locking structure of a circuit breaker lever, which has a wiring terminal to facilitate the connection of the line. A screwdriver is used to pass through the series sleeve to screw the locking bolt, and the locking contact is tightened to cooperate with the connecting contact to clamp the fixed wire end to achieve fixation.

[0005] The invention provides a locking structure of a circuit breaker lever, which specifically comprises: a combined shell, wherein the combined shell is a combined structure composed of two groups of shells; a series sleeve is fixedly arranged above the front and rear ends of the combined shell; two groups of positioning clamps are fixedly arranged above the interior of the combined shell, and a side positioning plate is fixedly arranged between the two groups of positioning clamps; a control dial button is rotatably arranged in the middle of the two groups of side positioning plates; wiring terminals are embedded in the middle of the front and rear sides of the combined shell; a connector frame is fixedly arranged on the front middle side of the lower interior of the combined shell; a transmission frame is fixedly arranged on the rear side of the lower interior of the combined shell; an upper connecting rod and a lower connecting rod are fixedly arranged on the interior of the combined shell with a matching bracket, an adsorption iron sleeve is slidably arranged outside the lower connecting rod, and a U-shaped spacer is slidably arranged outside the adsorption iron sleeve.

[0006] Optionally, an arc-shaped through groove is formed on the rear side of the side positioning plate, the angle of the arc-shaped through groove is 90°, and the center of the arc-shaped through groove is consistent with the axis of the control button.

[0007] Optionally, the outside of the control button is a lever structure, and a U-shaped frame is integrally provided at the position where the outer circumference of the control button is opposite to the lever, and a locking hinge is integrally provided between the U-shaped frame and the middle of the rear side of the control button, and a rotating shaft is provided inside the locking hinge, and tension spring groups are rotatably provided on both sides of the rotating shaft through the arc-shaped through grooves on both sides; the front end of the tension spring group is hinged in the middle of the front side of the side positioning plate; when the rotating shaft in the locking hinge is at both ends of the arc-shaped through groove, the tension spring group is in a normal state.

[0008] Optionally, a connecting contact is fixedly provided at the lower inner part of the terminal; four groups of vertical guide rods are slidably provided on the top of the terminal, locking contacts are fixedly provided at the lower ends of the vertical guide rods, springs are sleeved on the outer ends of the upper ends of the vertical guide rods and a connecting top plate is fixedly provided; a locking bolt is threadedly connected to the top of the terminal, and the locking bolt passes through the middle through hole of the connecting top plate.

[0009] Optionally, a rotating wheel group is rotatably arranged in the middle of the connector frame, the middle of the rotating wheel group is an eccentric structure, a grid-shaped fan-shaped spacer is fixedly arranged in the middle of the wide side of the rotating wheel group, and the outsides of the two sidemost groups of fan-shaped spacers are integrally provided with arc-shaped partition edges that pass through the rotating wheel group, and the arc-shaped partition edges fit the inner wall of the connector frame; a connecting guide rod is fixedly arranged on the top of the rotating wheel group, and a group of spring guide rods are fixedly arranged at both ends of the connecting guide rod, and a contact terminal is fixedly arranged on the outside of the spring guide rod, and the contact terminal passes through the two ends of the rotating wheel group side; a positioning card wheel is fixedly arranged on the outside of the front shaft end of the rotating wheel group, and two arc-shaped grooves spaced apart are opened outside the positioning card wheel; an automatic card block is arranged on the front side of the connector frame in cooperation with the spring rod; the automatic card block fits the arc-shaped groove of the positioning card wheel; fixed contacts are fixedly arranged on the upper part of both sides of the connector frame; the front side connecting contact is connected to the front side fixed contact setting circuit; the rear side connecting contact is connected to the rear side fixed contact setting circuit, and an electromagnetic coil is also fixedly connected in the circuit, and the coil of the electromagnetic coil is located outside the lower connecting rod.

[0010] Optionally, a linkage shaft is rotatably arranged on the top of the transmission frame, and a driven gear is fixedly arranged on the top of the linkage shaft; the lower end of the linkage shaft is connected to the rear shaft end of the rotating wheel set by a bevel gear transmission.

[0011] Optionally, a cross sleeve is fixedly provided on the top of the U-shaped spacer, the cross sleeve slides outside the upper connecting rod, and the U-shaped frame contacts two sides of the cross sleeve.

[0012] Optionally, a control rack is fixedly provided at the bottom of the U-shaped spacer, and the control rack is meshed with the driven gear.

[0013] Optionally, a magnetic rod is fixedly provided on the inner front side of the combined housing, and the magnetic rod can be adsorbed and fixed to the control rack.

[0014] Optionally, the control rack is made of stainless steel.

[0015] The beneficial effects are as follows: 1. Set the stable self-locking function. It provides a stable self-locking function. Turn the control knob and rotate it 90 degrees to drive the tension spring group to rotate downward. At this time, the tension spring group cooperates with the arc-shaped through groove to still provide a locking effect. The upper and lower ends of the arc-shaped through groove are both far away from the front shaft end, ensuring that the direction of the force is automatically adjusted after the locking hinge passes through the middle position of the arc-shaped through groove, and the tension spring group remains straight and will not deform.

[0016] 2. A rotating wheel group is set to provide a circuit breaker switching function. When the circuit is closed, the U-shaped frame pushes the cross sleeve forward, so that the U-shaped spacer moves forward as a whole, driving the control rack forward, driving the driven gear, the linkage shaft and the rotating wheel group to rotate half a circle, and the automatic clamping block is used in conjunction with the positioning clamping wheel for self-locking and fixing, so that the contact end contacts the fixed contact, connecting the contacts at both ends, and then connecting the entire circuit. During this period, fan-shaped spacers and arc-shaped isolation edges are used to separate the contact end and the fixed contact, thereby eliminating the arc.

[0017] 3. Setting up the wiring terminals provides a stable installation function. Insert the line into the two sets of wiring terminals, use a screwdriver to pass through the series sleeve to twist the locking bolt, tighten the locking contact and cooperate with the connecting contact to clamp the fixed wire end to achieve fixation. Compared with the commonly used simple terminals, the positioning locking can ensure the stability of the connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of a cross-sectional structure of an embodiment of the present invention in a disconnected state is shown; Figure 2 A schematic diagram of a cross-sectional structure of a closed state of an embodiment of the present invention is shown; Figure 3 The embodiment of the present invention is shown Figure 2 A schematic diagram of the structure in which the side positioning plate is removed; Figure 4 The embodiment of the present invention is shown Figure 1 Schematic diagram of the side elevation structure; Figure 5 The embodiment of the present invention is shown Figure 2 Schematic diagram of the side elevation structure; Figure 6 A schematic diagram of the three-dimensional structure of a rotating wheel assembly in an embodiment of the present invention is shown; Figure 7 A schematic diagram of the three-dimensional structure of the wiring terminal in the embodiment of the present invention is shown; Figure 8 A schematic diagram of the structure of the combination mode of the embodiment of the present invention is shown.

[0019] List of reference numerals: 1. Combined housing; 101. Serial sleeve; 102. Positioning card; 103. Side positioning plate; 104. Arc-shaped through groove; 2. Control dial; 201. U-shaped frame; 202. Locking hinge seat; 203. Tension spring group; 3. Wiring terminal; 301. Connection contact; 302. Vertical guide rod; 303. Locking contact piece; 304. Connecting top piece; 305. Locking bolt; 4. Connector frame; 401. Rotating wheel group; 402. Fan-shaped Spacer; 403, arc-shaped spacer edge; 404, connecting guide rod; 405, spring guide rod; 406, contact end; 407, positioning clamp wheel; 408, automatic clamp block; 409, fixed contact; 5, transmission frame; 501, linkage shaft; 502, driven gear; 6, upper connecting rod; 7, lower connecting rod; 701, adsorption iron sleeve; 8, magnetic rod; 9, U-shaped spacer; 901, cross sliding sleeve; 10, control rack; 11, electromagnetic coil. DETAILED DESCRIPTION

[0020] In order to make the purpose, scheme and advantages of the technical solution of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings of specific embodiments of the present invention. Example 1

[0021] Please refer to the attached figure in the instruction manual. Figures 1 to 8 As shown: The present invention proposes a locking structure of a circuit breaker lever, comprising: a combined housing 1, wherein the combined housing 1 is a combined structure consisting of two groups of shells; a series sleeve 101 is fixedly arranged above the front and rear ends of the combined housing 1; two groups of positioning clamps 102 are fixedly arranged above the inside of the combined housing 1, and a side positioning plate 103 is fixedly arranged between the two groups of positioning clamps 102; a control dial button 2 is rotatably arranged in the middle of the two groups of side positioning plates 103; a wiring terminal 3 is embedded in the middle of the front and rear sides of the combined housing 1; a connector frame 4 is fixedly arranged on the front middle side of the lower inside of the combined housing 1; a transmission frame 5 is fixedly arranged on the rear side of the lower inside of the combined housing 1; an upper connecting rod 6 and a lower connecting rod 7 are fixedly arranged on the matching bracket inside the combined housing 1, an adsorption iron sleeve 701 is slidably arranged outside the lower connecting rod 7, and a U-shaped spacer 9 is slidably arranged outside the adsorption iron sleeve 701.

[0022] The rear side of the side positioning plate 103 is provided with an arc-shaped through slot 104 , the included angle of the arc-shaped through slot 104 is 90°, and the center of the arc-shaped through slot 104 is consistent with the axis of the control button 2 .

[0023] Among them, the outside of the control button 2 is a lever structure, and a U-shaped frame 201 is integrally provided at the position where the outer circumference of the control button 2 is opposite to the lever, and a locking hinge seat 202 is integrally provided in the middle of the rear side of the U-shaped frame 201 and the control button 2, and a rotating shaft is provided inside the locking hinge seat 202, and tension spring groups 203 are rotatably provided on both sides of the rotating shaft through the arc-shaped through grooves 104 on both sides; the front end of the tension spring group 203 is hinged in the middle of the front side of the side positioning plate 103; when the rotating shaft in the locking hinge seat 202 is at the two ends of the arc-shaped through groove 104, the tension spring group 203 is in a normal state.

[0024] Among them, a connecting contact 301 is fixedly arranged at the lower inner part of the terminal block 3; four sets of vertical guide rods 302 are slidably arranged on the top of the terminal block 3, a locking contact 303 is fixedly arranged at the lower end of the vertical guide rods 302, and a spring is sleeved on the outer end of the upper end of the vertical guide rods 302 and a connecting top plate 304 is fixedly arranged; a locking bolt 305 is threadedly connected to the top of the terminal block 3, and the locking bolt 305 passes through the middle through hole of the connecting top plate 304.

[0025] Among them, a rotating wheel set 401 is rotatably arranged in the middle of the connector frame 4, and the middle of the rotating wheel set 401 is an eccentric structure. A grid-shaped fan-shaped spacer 402 is fixedly arranged in the middle of the wide side of the rotating wheel set 401, and the outer parts of the two sets of fan-shaped spacers 402 on the outermost sides are integrally provided with arc-shaped partition edges 403 that pass through the rotating wheel set 401, and the arc-shaped partition edges 403 fit the inner wall of the connector frame 4; a connecting guide rod 404 is fixedly arranged on the top of the rotating wheel set 401, and a group of spring guide rods 405 are fixedly arranged at both ends of the connecting guide rod 404, and a contact terminal 406 is fixedly arranged on the outer part of the spring guide rod 405, and the contact terminal 406 passes through the rotating wheel set 4 01 on both sides; a positioning clamping wheel 407 is fixedly provided on the outside of the front shaft end of the rotating wheel group 401, and two arc-shaped grooves spaced apart from each other are opened on the outside of the positioning clamping wheel 407; an automatic clamping block 408 is provided on the front side of the connector frame 4 in cooperation with the spring rod; the automatic clamping block 408 fits in the arc-shaped groove of the positioning clamping wheel 407; fixed contacts 409 are fixedly provided on the upper part of both sides of the connector frame 4; the front side connecting contact 301 and the front side fixed contact 409 are connected by a circuit; the rear side connecting contact 301 and the rear side fixed contact 409 are connected by a circuit, and an electromagnetic coil 11 is also fixedly connected in the circuit, and the coil of the electromagnetic coil 11 is located on the outside of the lower connecting rod 7.

[0026] A linkage shaft 501 is rotatably arranged on the top of the transmission frame 5 , and a driven gear 502 is fixedly arranged on the top of the linkage shaft 501 ; the lower end of the linkage shaft 501 is connected to the rear shaft end of the rotating wheel set 401 by a bevel gear transmission.

[0027] A cross sleeve 901 is fixedly provided on the top of the U-shaped spacer 9 , and the cross sleeve 901 slides outside the upper connecting rod 6 , and the U-shaped frame 201 contacts both sides of the cross sleeve 901 .

[0028] A control rack 10 is fixedly disposed at the bottom of the U-shaped spacer 9 , and the control rack 10 is meshed with the driven gear 502 .

[0029] A magnetic rod 8 is fixedly disposed on the inner front side of the combined housing 1 , and the magnetic rod 8 can be adsorbed and fixed to the control rack 10 .

[0030] The control rack 10 is made of stainless steel.

[0031] like Figure 1-7 As shown, insert the circuit into the two sets of terminal blocks 3, use a screwdriver to pass through the series sleeve 101 to screw the locking bolt 305, tighten the locking contact 303 to cooperate with the connecting contact 301 to clamp the fixed wire end to achieve fixation; After the connection is completed, the control dial button 2 is toggled, and the control dial button 2 rotates 90 degrees, driving the tension spring group 203 to rotate downward. At this time, the tension spring group 203 cooperates with the arc-shaped through groove 104 to still provide a locking effect, and the U-shaped frame 201 pushes the cross sleeve 901 forward, so that the U-shaped spacer 9 moves forward as a whole, drives the control rack 10 to move forward, drives the driven gear 502 to rotate half a circle, and the linkage shaft 501 cooperates with the bevel gear to drive the rotating wheel group 401 to rotate half a circle, and the automatic clamping block 408 cooperates with the positioning clamping wheel 407 for self-locking and fixing, so that the contact end 406 contacts the fixed contact 409, and the connection contacts 301 at both ends are connected, and then the circuit is connected as a whole; When the line needs to be disconnected, the control dial button 2 is manually reset to reverse the aforementioned transmission, disconnect the circuit breaker, and achieve power off. Example 2

[0032] On the basis of Example 1, if the line is short-circuited, causing the current to increase, the magnetic force generated by the electromagnetic coil 11 will increase significantly, pulling the adsorption iron sleeve 701 backward. After the suction force exceeds the magnetic rod 8, the control rack 10 will be separated from the magnetic rod 8, and the adsorption iron sleeve 701 will drive the U-shaped spacer 9 to move backward, automatically resetting the control button 2, and at the same time, the rotating wheel group 401 will automatically reset, disconnecting the line of the circuit breaker. Example 3

[0033] On the basis of Example 1, Figure 8 As shown, the method of use is not unique. When connecting a three-phase line, three sets of circuit breakers are connected together to manage three-phase electricity. A cylindrical structure that can be used for series connection is set in the combined housing 1 to facilitate the insertion and fixing of bolts for assembly.

[0034] Specific usage and function of this embodiment: In the present invention, when in use, the circuit is inserted into the two sets of terminal blocks 3, and a screwdriver is used to pass through the series connection sleeve 101 to screw the locking bolt 305, and the locking contact piece 303 is tightened to cooperate with the connection contact 301 to clamp and fix the wire end to achieve fixation; After the connection is completed, the control dial button 2 is toggled, and the control dial button 2 rotates 90 degrees, driving the tension spring group 203 to rotate downward. At this time, the tension spring group 203 cooperates with the arc-shaped through groove 104 to still provide a locking effect, and the U-shaped frame 201 pushes the cross sleeve 901 forward to make the U-shaped spacer 9 move forward as a whole, driving the control rack 10 to move forward, driving the driven gear 502 to rotate half a circle, and the linkage shaft 501 cooperates with the bevel gear to drive the rotating wheel group 401 to rotate half a circle, and the automatic clamping block 408 cooperates with the positioning clamping wheel 407 for self-locking and fixing, so that the contact end 406 contacts the fixed contact 409, and the connecting contacts 301 at both ends are connected, and then the circuit is connected as a whole; during this period, the fan-shaped spacer 402 and the arc-shaped isolation edge 403 are used to separate the contact end 406 and the fixed contact 409, and the arc isolating is eliminated; If the line is short-circuited, the current will increase, and the magnetic force generated by the electromagnetic coil 11 will increase significantly, pulling the adsorption iron sleeve 701 backward. After the suction force exceeds the magnetic rod 8, the control rack 10 will be separated from the magnetic rod 8, and the adsorption iron sleeve 701 will drive the U-shaped spacer 9 to move backward, automatically resetting the control dial 2, and at the same time, the rotating wheel group 401 will automatically reset, disconnecting the circuit breaker; When using, you can connect three sets of circuit breakers together, such as Figure 8 , which can be used to manage the three-phase electricity of the equipment.

[0035] The above are only specific implementations of the present disclosure, but the protection scope of the present disclosure is not limited thereto, and the protection scope of the present disclosure shall be based on the protection scope of the claims.

Claims

1. The locking structure of the circuit breaker lever includes: A combined shell (1), wherein the combined shell (1) is a combined structure consisting of two groups of shells; the characteristics are that a series sleeve (101) is fixedly arranged above the front and rear ends of the combined shell (1); two groups of positioning clamps (102) are fixedly arranged above the inside of the combined shell (1), and a side positioning plate (103) is fixedly arranged between the two groups of positioning clamps (102); a control dial button (2) is rotatably arranged in the middle of the two groups of side positioning plates (103); wiring terminals (3) are embedded in the middle of the front and rear sides of the combined shell (1); a transmission frame (5) is fixedly arranged at the rear side of the lower part of the combined shell (1); an upper connecting rod (6) and a lower connecting rod (7) are fixedly arranged in the combined shell (1) in cooperation with a bracket, and an adsorption iron sleeve (701) is slidably arranged outside the lower connecting rod (7), and the adsorption iron sleeve (701) is slidably arranged outside A U-shaped spacer (9) is provided; an arc-shaped through groove (104) is provided on the rear side of the side positioning plate (103); the center of the arc-shaped through groove (104) is consistent with the axis of the control dial button (2); the outside of the control dial button (2) is a lever structure; a U-shaped frame (201) is integrally provided at a position where the outer circumference of the control dial button (2) is opposite to the lever; a locking hinge seat (202) is integrally provided at the middle of the rear side of the U-shaped frame (201) and the control dial button (2); a rotating shaft is provided inside the locking hinge seat (202); tension spring groups (203) are rotatably provided on both sides of the rotating shaft passing through the arc-shaped through grooves (104); the front end of the tension spring group (203) is hinged at the middle of the front side of the side positioning plate (103); when the rotating shaft in the locking hinge seat (202) is at both ends of the arc-shaped through groove (104), the tension spring group (203) is in a normal state.

2. A locking structure for a circuit breaker lever as claimed in claim 1, characterized in that: A connection contact (301) is fixedly arranged at the lower part of the interior of the connection terminal (3); four groups of vertical guide rods (302) are slidably arranged at the top of the connection terminal (3); a locking contact piece (303) is fixedly arranged at the lower end of the vertical guide rod (302); a spring is sleeved on the outer side of the upper end of the vertical guide rod (302) and a connection top piece (304) is fixedly arranged; a locking bolt (305) is threadedly connected to the top of the connection terminal (3), and the locking bolt (305) passes through the middle through hole of the connection top piece (304).

3. The locking structure of a circuit breaker lever according to claim 1, characterized in that: A connector frame (4) is fixedly arranged at the front middle side of the lower interior of the combined housing (1); a rotating wheel group (401) is rotatably arranged in the middle of the connector frame (4); the middle of the rotating wheel group (401) is an eccentric structure; a grid-shaped fan-shaped spacer (402) is fixedly arranged in the middle of the wide side of the rotating wheel group (401); an arc-shaped partition edge (403) that passes through the rotating wheel group (401) is integrally arranged outside the two side groups of the fan-shaped spacer (402); the arc-shaped partition edge (403) fits the inner wall of the connector frame (4); A connecting guide rod (404) is fixedly provided on the top of the rotating wheel assembly (401), a group of spring guide rods (405) are fixedly provided at both ends of the connecting guide rod (404), and contact ends (406) are fixedly provided on the outside of the spring guide rod (405), and the contact ends (406) pass through two sides of the rotating wheel assembly (401); A positioning clamp wheel (407) is fixedly arranged on the outside of the front shaft end of the rotating wheel group (401), and two arc-shaped grooves spaced apart from each other are opened on the outside of the positioning clamp wheel (407); an automatic clamp block (408) is arranged on the front side of the connector frame (4) in cooperation with the spring rod; the automatic clamp block (408) fits in the arc-shaped groove of the positioning clamp wheel (407); fixed contacts (409) are fixedly arranged on the upper sides of both sides of the connector frame (4); a circuit is arranged between the front connecting contact (301) and the front fixed contact (409); a circuit is arranged between the rear connecting contact (301) and the rear fixed contact (409), and an electromagnetic coil (11) is fixedly connected in the circuit, and the coil of the electromagnetic coil (11) is located outside the lower connecting rod (7).

4. A locking structure for a circuit breaker lever as claimed in claim 3, characterized in that: A linkage shaft (501) is rotatably arranged at the top of the transmission frame (5), and a driven gear (502) is fixedly arranged at the top of the linkage shaft (501); the lower end of the linkage shaft (501) is connected to the rear shaft end of the rotating wheel set (401) by a bevel gear transmission.

5. The locking structure of a circuit breaker lever according to claim 1, characterized in that: A cross sleeve (901) is fixedly arranged on the top of the U-shaped spacer (9), the cross sleeve (901) slides outside the upper connecting rod (6), and the U-shaped frame (201) contacts two sides of the cross sleeve (901).

6. A locking structure for a circuit breaker lever as claimed in claim 3, characterized in that: A control rack (10) is fixedly disposed at the bottom of the U-shaped spacer (9), and the control rack (10) is meshed with the driven gear (502).

7. A locking structure for a circuit breaker lever as claimed in claim 5, characterized in that: A magnetic rod (8) is fixedly arranged on the inner front side of the combined housing (1), and the magnetic rod (8) can be adsorbed and fixed to the control rack (10).

8. A locking structure for a circuit breaker lever as claimed in claim 7, characterized in that: The control rack (10) is made of stainless steel.

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