Opening and closing operation mechanism of high-voltage cabinet

Abstract

The invention discloses a high-voltage cabinet opening and closing operation mechanism which comprises a mechanism supporting plate, and the mechanism supporting plate is provided with a rack sliding groove, a cable chamber door opening interlocking device fixing point, a positioning rod sliding groove, a circuit breaker locking mechanism positioning hole, a transmission gear positioning hole and an operation handle bolt shaft positioning hole. The mechanism supporting plate is rotatably connected with an isolating switch rod, a grounding switch rod and a circuit breaker rod, and one end, penetrating through the isolating switch rod positioning hole, of the isolating switch rod is fixedly connected with an isolating switch driving gear. When the equipment is in a running state, the cable chamber door of the high-voltage cabinet cannot be opened, and only when the grounding switch is in a closed state, the cable chamber door can be opened for maintenance work. And after the front door is opened, the grounding switch, the isolating switch and the circuit breaker cannot be operated, so that electrical misoperation is prevented.

Description

Technical Field

[0001] The invention relates to the field of electrical equipment and safety technology, in particular to a high-voltage cabinet opening and closing operating mechanism. Background Art

[0002] The operating device of a high-voltage cabinet usually has three operating points, namely the grounding switch operating point, the isolating switch operating point, and the circuit breaker operating point. Operators often need to insert the operating lever back and forth at the three operating points to perform opening and closing operations, which is very inconvenient. In addition, the operating mechanism of the current high-voltage cabinet is usually complex in structure, difficult to assemble and maintain, and the overall transmission accuracy is not high, so it is necessary to improve its operating mechanism. Summary of the invention

[0003] In order to solve the above problems, the present invention provides a high-voltage cabinet opening and closing operating mechanism, and the present invention is achieved through the following technical solutions.

[0004] A high-voltage cabinet opening and closing operating mechanism comprises a mechanism support plate, on which a rack slide groove, a cable room door opening interlock device fixing point, a positioning rod slide groove, a circuit breaker locking mechanism positioning hole, a circuit breaker rod positioning hole, an energy storage gear limit point, an opening and closing indicating gear positioning point, an isolating switch rod positioning hole, an earthing switch rod positioning hole, a transmission gear positioning hole and an operating handle latch shaft positioning hole are arranged, the isolating switch rod, the earthing switch rod and the circuit breaker rod are rotatably connected on the mechanism support plate, and one end of the isolating switch rod passing through the isolating switch rod positioning hole is fixedly connected to the isolating switch driving gear, and one end of the earthing switch rod passing through the operating handle latch shaft positioning hole is fixedly connected to the operating handle latch shaft positioning hole. The handle transmission gear and the earthing switch opening and closing control intermittent gear, one end of the circuit breaker rod passing through the transmission gear positioning hole is fixedly connected with a circuit breaker rod fixing wheel, a two-way torsion spring, a ball bearing positioning gear and a two-way torsion spring energy storage gear; the mechanism support plate is rotatably connected with transmission gear five, disconnecting switch opening and closing control intermittent gear, ball bearing transmission gear one, earthing switch driving gear four, earthing switch opening and closing indication gear, transmission gear two, transmission gear three, circuit breaker opening and closing control intermittent gear and circuit breaker opening and closing indication gear; it also includes a circuit breaker rod locking mechanism, a rack, a cable room locking rod, a circuit breaker rod locking mechanism trigger shaft and a cable room door opening interlocking device.

[0005] Preferably, the rack is meshed and connected with the operating handle transmission gear, the operating handle transmission gear is meshed and connected with transmission gear five, the isolating switch opening and closing control intermittent gear is meshed and connected with the isolating switch driving gear, the isolating switch driving gear is meshed and connected with the isolating switch opening and closing indication gear, the grounding switch opening and closing control intermittent gear is meshed and connected with the grounding switch driving gear four, the grounding switch driving gear four is meshed and connected with the grounding switch opening and closing indication gear, the ball bearing transmission gear one is meshed and connected with the transmission gear two, the transmission gear two is meshed and connected with the transmission gear three, the transmission gear three is meshed and connected with the ball bearing positioning gear, the circuit breaker opening and closing control intermittent gear is meshed and connected with the bidirectional torsion spring energy storage gear, and the bidirectional torsion spring energy storage gear is meshed and connected with the circuit breaker opening and closing indication gear.

[0006] Preferably, the cable room door opening interlock device is composed of a cable room interlock rod, an upper positioning sleeve, a bidirectional torsion spring and a lower positioning sleeve, and the cable room interlock rod is provided with an upper limit position of the cable room interlock rod, a lower contact of the cable room interlock rod and a spring positioning groove, the cable room door opening interlock device is fixed to the fixed point of the cable room door opening interlock device through the upper positioning sleeve and the lower positioning sleeve, the bidirectional torsion spring is gap-fitted on the cable room interlock rod, and one end of the bidirectional torsion spring is fixed on the spring positioning groove, and the other end of the bidirectional torsion spring is fixed on the upper positioning sleeve, and the cable room interlock rod is gap-fitted between the upper positioning sleeve and the lower positioning sleeve.

[0007] Preferably, the rack slides in a clearance on the rack slot, the cable room door interlock device is fixed to the fixed point of the cable room door interlock device through an upper positioning sleeve and a lower positioning sleeve, the positioning rod slot and the positioning rod are clearance matched, the circuit breaker rod locking mechanism is fixed to the circuit breaker locking mechanism positioning hole through a fixing pin, the circuit breaker rod and the circuit breaker rod positioning hole are clearance matched, and the ball bearing positioning gear is fixed to the outermost side of the circuit breaker rod, the bidirectional torsion spring energy storage gear, the ball bearing positioning gear, the bidirectional torsion spring and the circuit breaker rod fixing wheel are all clearance matched on the circuit breaker rod, and the circuit breaker rod fixing wheel is close to one side of the mechanism support plate.

[0008] Preferably, the disconnector opening and closing indicator gear, the earthing switch opening and closing indicator gear and the circuit breaker opening and closing indicator gear are all fixed on the shaft, and the shaft and the opening and closing indicator gear positioning points at the corresponding positions are clearance matched, the transmission gear five, the transmission gear two and the transmission gear three are fixed on the shaft, and the shaft and the transmission gear positioning holes at the corresponding positions are clearance matched, and the transmission gear five is fixed to the outermost side of the shaft, followed by the disconnector opening and closing control intermittent gear, the transmission gear three is fixed to the outermost side of the shaft, followed by the circuit breaker opening and closing control intermittent gear, the operating handle latch shaft and the operating handle latch shaft positioning hole are clearance matched, and the operating handle transmission gear is fixed on the operating handle latch shaft.

[0009] Preferably, the circuit breaker rod locking mechanism is composed of a fixing piece, a spring, a push rod, a rocker, a positioning rod and a fixing pin. The circuit breaker rod locking mechanism is fixed to the mechanism support plate through the fixing pin. The rocker is fixed to the fixing piece through an axial fixing hole. The spring is gap-fitted with the middle part of the push rod, one side of the push rod is gap-fitted with the push rod guide hole of the fixing piece, and the other side of the push rod is fixed to the push rod fixing hole of the rocker. The positioning rod is gap-fitted with the positioning rod slide groove, one end of the positioning rod is fixed to the positioning rod fixing hole of the rocker, and the closing positioning groove and the opening positioning groove provided on the circuit breaker rod fixing wheel are used to embed and fit the other end of the positioning rod.

[0010] Preferably, the bidirectional torsion spring energy storage gear is composed of a slide groove, a second ball bearing, an upper torsion spring fixing hole and a shaft hole.

[0011] Preferably, the ball bearing positioning gear is composed of a second positioning pin, a first ball bearing and a second shaft hole.

[0012] Preferably, the bidirectional torsion spring is composed of an upper torsion spring joint and a lower torsion spring joint, and a positioning pin 1 is provided on the circuit breaker rod.

[0013] Preferably, the ball bearing positioning gear is installed on the circuit breaker rod through the provided shaft hole 2 and shaft hole 1, and the positioning pin 2 is slidably matched with the slide groove, the circuit breaker rod fixing wheel is fixed on the circuit breaker rod through the shaft hole and the positioning pin 1, the torsion spring upper joint on the bidirectional torsion spring is fixed in the upper torsion spring fixing hole, and the torsion spring lower joint is fixed on the lower torsion spring fixing hole.

[0014] The beneficial effects of the present invention are:

[0015] 1. By optimizing the operating mechanism, the original three operating points are reduced to one. The operator only needs to operate at one operating point to complete the grounding switch operation, disconnector operation, and circuit breaker operation. Compared with the traditional high-voltage cabinet, its operating mechanism has the advantages of simple structure and easy operation.

[0016] 2. Through mechanical structure interlocking, it is realized that during power transmission operation, power can only be supplied to the high-voltage cabinet by opening the grounding switch, closing the isolating switch, and closing the circuit breaker. During maintenance operation, the high-voltage cabinet can only be inspected and operated by opening the circuit breaker, opening the isolating switch, and closing the grounding switch, which fundamentally eliminates misoperation and achieves the purpose of intrinsic safety.

[0017] 3. Through the cable room locking rod and the cable room door interlocking device, mechanical forced locking is achieved. When the equipment is in operation, the cable room door of the high-voltage cabinet cannot be opened. Only when the grounding switch is in the closed state can the cable room door be opened for maintenance. After the front door is opened, the grounding switch, isolating switch, and circuit breaker cannot be operated, thereby preventing electrical misoperation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the description of the specific implementation methods will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 : An axonometric diagram of a high-voltage cabinet opening and closing operating mechanism according to the present invention;

[0020] Figure 2 : A schematic diagram of the connection of the disconnector opening and closing control intermittent gear, the earthing switch opening and closing control intermittent gear and the circuit breaker opening and closing control intermittent gear of the present invention;

[0021] Figure 3 : A schematic diagram of the structure of the support plate of the mechanism of the present invention;

[0022] Figure 4 : A second axonometric diagram of a high-voltage cabinet opening and closing operating mechanism of the present invention;

[0023] Figure 5 : A schematic diagram of the connection between the fixing member and the positioning rod of the present invention;

[0024] Figure 6 : The present invention Figure 5 The main view;

[0025] Figure 7 : A schematic diagram of the structure of the rocker of the present invention;

[0026] Figure 8 : A schematic structural diagram of a fixing member of the present invention;

[0027] Fig. 9 : A schematic diagram of the structure of the cable chamber interlocking rod of the present invention;

[0028] Fig.10 : The present invention Fig. 9 The main view;

[0029] Fig.11 : The present invention Fig.10 A magnified view of middle;

[0030] Fig.12: A schematic structural diagram of a bidirectional torsion spring energy storage gear according to the present invention;

[0031] Fig.13 : A schematic structural diagram of the ball bearing positioning gear of the present invention;

[0032] Fig.14 : A schematic structural diagram of a bidirectional torsion spring of the present invention;

[0033] Fig.15 : A schematic structural diagram of a circuit breaker rod fixing wheel of the present invention;

[0034] Fig.16 : A schematic structural diagram of a circuit breaker rod of the present invention;

[0035] Fig.17 : A schematic diagram of the connection between the circuit breaker rod, the circuit breaker rod fixing wheel, the ball bearing positioning gear and the bidirectional torsion spring energy storage gear of the present invention.

[0036] The reference numerals are as follows:

[0037] 1. Disconnector rod; 2. Disconnector drive gear; 3. Disconnector opening and closing indicator gear; 4. Transmission gear five; 5. Disconnector opening and closing control intermittent gear; 6. Operating handle transmission gear; 7. Operating handle latch shaft; 8. Grounding switch rod; 9. Grounding switch opening and closing control intermittent gear; 10. Ball bearing transmission gear one; 11. Grounding switch drive gear four; 12. Grounding switch opening and closing indicator gear; 13. Transmission gear two; 14. Transmission gear three;

[0038] 15. Circuit breaker rod; 1501. Positioning pin 1;

[0039] 16. Intermittent gear for circuit breaker opening and closing control;

[0040] 17. Circuit breaker opening and closing indicator gear;

[0041] 18. Circuit breaker rod fixing wheel; 1801. Lower torsion spring fixing hole; 1802. Axle hole; 1803. Closing positioning groove; 1804. Opening positioning groove;

[0042] 19. Bidirectional torsion spring; 1901. Upper joint of torsion spring; 1902. Lower joint of torsion spring;

[0043] 20. Ball bearing positioning gear; 2001. Positioning pin 2; 2002. Ball bearing 1; 2003. Shaft hole 2;

[0044] 21. Bidirectional torsion spring energy storage gear; 2101. Slideway; 2102. Ball bearing 2; 2103. Upper torsion spring fixing hole; 2104. Shaft hole 1;

[0045] 22. Circuit breaker rod locking mechanism; 2201. Fixing piece; 2202. Spring; 2203. Push rod; 2204. Rocker; 2205. Positioning rod; 2206. Fixing pin;

[0046] 23. Rack;

[0047] 24. Cable compartment locking lever;

[0048] 25. Trigger shaft of circuit breaker rod locking mechanism;

[0049] 26. Cable room door interlocking device; 2601. Cable room interlocking rod; 26011. Cable room interlocking rod upper limit position; 26012. Cable room interlocking rod lower contact point; 26013. Spring positioning groove; 2602. Upper positioning sleeve; 2603. Bidirectional torsion spring; 2604. Lower positioning sleeve;

[0050] 27. Mechanism support plate; 2701. Rack slide groove; 2702. Cable room door interlock device fixing point; 2703. Positioning rod slide groove; 2704. Circuit breaker locking mechanism positioning hole; 2705. Circuit breaker rod positioning hole; 2706. Energy storage gear limit point; 2707. Opening and closing indication gear positioning point; 2708. Disconnector rod positioning hole; 2709. Earthing switch rod positioning hole; 2710. Transmission gear positioning hole; 2711. Operating handle latch shaft positioning hole. DETAILED DESCRIPTION

[0051] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0052] like Figure 1-17 As shown, the present invention has the following specific embodiments.

[0053] Example 1

[0054] A high-voltage cabinet opening and closing operating mechanism, comprising a mechanism support plate 27, on which a rack slide groove 2701, a cable room door opening interlock device fixing point 2702, a positioning rod slide groove 2703, a circuit breaker locking mechanism positioning hole 2704, a circuit breaker rod positioning hole 2705, an energy storage gear limit point 2706, an opening and closing indicating gear positioning point 2707, an isolating switch rod positioning hole 2708, an earthing switch rod positioning hole 2709, a transmission gear positioning hole 2710 and an operating handle latch shaft positioning hole 2711 are arranged, and an isolating switch rod 1, an earthing switch rod 8 and a circuit breaker rod 15 are rotatably connected to the mechanism support plate 27, and one end of the isolating switch rod 1 passing through the isolating switch rod positioning hole 2708 is fixedly connected with an isolating switch driving gear 2, and the earthing switch rod 8 passes through the operating handle latch shaft positioning hole 27 One end of 11 is fixedly connected with the operating handle transmission gear 6 and the grounding switch opening and closing control intermittent gear 9, and one end of the circuit breaker rod 15 passing through the transmission gear positioning hole 2710 is fixedly connected with the circuit breaker rod fixing wheel 18, the two-way torsion spring 19, the ball bearing positioning gear 20 and the two-way torsion spring energy storage gear 21. The mechanism support plate 27 is rotatably connected with the transmission gear five 4, the disconnector opening and closing control intermittent gear 5, the ball bearing transmission gear one 10, the grounding switch driving gear four 11, the grounding switch opening and closing indication gear 12, the transmission gear two 13, the transmission gear three 14, the circuit breaker opening and closing control intermittent gear 16 and the circuit breaker opening and closing indication gear 17, and also includes a circuit breaker rod locking mechanism 22, a rack 23, a cable room locking rod 24, a circuit breaker rod locking mechanism trigger shaft 25 and a cable room door opening interlocking device 26.

[0055] Specifically, the rack 23 is meshed and connected with the operating handle transmission gear 6, the operating handle transmission gear 6 is meshed and connected with the transmission gear five 4, the disconnector opening and closing control intermittent gear 5 is meshed and connected with the disconnector drive gear 2, the disconnector drive gear 2 is meshed and connected with the disconnector opening and closing indication gear 3, the grounding switch opening and closing control intermittent gear 9 is meshed and connected with the grounding switch drive gear four 11, the grounding switch drive gear four 11 is meshed and connected with the grounding switch opening and closing indication gear 12, the ball bearing transmission gear one 10 is meshed and connected with the transmission gear two 13, the transmission gear two 13 is meshed and connected with the transmission gear three 14, the transmission gear three 14 is meshed and connected with the ball bearing positioning gear 20, the circuit breaker opening and closing control intermittent gear 16 is meshed and connected with the bidirectional torsion spring energy storage gear 21, and the bidirectional torsion spring energy storage gear 21 is meshed and connected with the circuit breaker opening and closing indication gear 17;

[0056] The cable room door opening interlock device 26 is composed of a cable room interlock rod 2601, an upper positioning sleeve 2602, a bidirectional torsion spring 2603 and a lower positioning sleeve 2604, and the cable room interlock rod 2601 is provided with a cable room interlock rod upper limit position 26011, a cable room interlock rod lower contact 26012 and a spring positioning groove 26013. The cable room door opening interlock device 26 is fixed to the cable room door opening interlock device fixing point 2702 through the upper positioning sleeve 2602 and the lower positioning sleeve 2604. The bidirectional torsion spring 2603 is clearance-fitted on the cable room interlock rod 2601, and one end of the bidirectional torsion spring 2603 is fixed on the spring positioning groove 26013, and the other end of the bidirectional torsion spring 2603 is fixed on the upper positioning sleeve 2602. The cable room interlock rod 2601 is clearance-fitted between the upper positioning sleeve 2602 and the lower positioning sleeve 2604.

[0057] The rack 23 slides on the rack slide groove 2701 with clearance, the cable room door interlock device 26 is fixed on the cable room door interlock device fixing point 2702 through the upper positioning sleeve 2602 and the lower positioning sleeve 2604, the positioning rod slide groove 2703 and the positioning rod 2205 are clearance matched, the circuit breaker rod locking mechanism 22 is fixed on the circuit breaker locking mechanism positioning hole 2704 through the fixing pin 2206, the circuit breaker rod 15 and the circuit breaker rod positioning hole 2705 are clearance matched, and the ball bearing positioning gear 20 is fixed to the outermost side of the circuit breaker rod 15, the bidirectional torsion spring energy storage gear 21, the ball bearing positioning gear 20, the bidirectional torsion spring 19 and the circuit breaker rod fixing wheel 18 are all clearance matched on the circuit breaker rod 15, and the circuit breaker rod fixing wheel 18 is close to the side of the mechanism support plate 27;

[0058] The disconnector opening and closing indication gear 3, the earthing switch opening and closing indication gear 12 and the circuit breaker opening and closing indication gear 17 are all fixed on the shaft, and the shaft and the corresponding opening and closing indication gear positioning point 2707 are clearance matched, the transmission gear five 4, the transmission gear two 13 and the transmission gear three 14 are fixed on the shaft, and the shaft and the corresponding transmission gear positioning hole 2710 are clearance matched, and the transmission gear five 4 is fixed to the outermost side of the shaft, followed by the disconnector opening and closing control intermittent gear 5, the transmission gear three 14 is fixed to the outermost side of the shaft, followed by the circuit breaker opening and closing control intermittent gear 16, the operating handle latch shaft 7 and the operating handle latch shaft positioning hole 2711 are clearance matched, and the operating handle transmission gear 6 is fixed on the operating handle latch shaft 7;

[0059] The circuit breaker rod locking mechanism 22 is composed of a fixing piece 2201, a spring 2202, a push rod 2203, a rocker 2204, a positioning rod 2205 and a fixing pin 2206. The circuit breaker rod locking mechanism 22 is fixed to the mechanism support plate 27 through the fixing pin 2206. The rocker 2204 is fixed to the fixing piece 2201 through an axial fixing hole. The spring 2202 is clearance-matched in the middle of the push rod 2203. One side of the push rod 2203 is clearance-matched in the push rod guide hole of the fixing piece 2201, and the other side of the push rod 2203 is fixed to the push rod fixing hole of the rocker 2204. The positioning rod 2205 is clearance-matched in the positioning rod sliding groove 2703. One end of the positioning rod 2205 is fixed to the positioning rod fixing hole of the rocker 2204. The closing positioning groove 1803 and the opening positioning groove 1804 provided on the circuit breaker rod fixing wheel 18 are used to embed and match the other end of the positioning rod 2205.

[0060] The bidirectional torsion spring energy storage gear 21 is composed of a slide groove 2101, a second ball bearing 2102, an upper torsion spring fixing hole 2103 and a shaft hole 1 2104;

[0061] The ball bearing positioning gear 20 is composed of a positioning pin 2001, a ball bearing 1 2002 and a shaft hole 2003;

[0062] The bidirectional torsion spring 19 is composed of an upper torsion spring joint 1901 and a lower torsion spring joint 1902, and a positioning pin 1501 is provided on the circuit breaker rod 15;

[0063] The ball bearing positioning gear 20 is installed on the circuit breaker rod 15 through the provided shaft hole 2003 and the shaft hole 1 2104, and the positioning pin 2001 is slidably matched with the slide groove 2101. The circuit breaker rod fixing wheel 18 is fixed on the circuit breaker rod 15 through the shaft hole 1802 and the positioning pin 1 1501. The torsion spring upper joint 1901 on the bidirectional torsion spring 19 is fixed in the upper torsion spring fixing hole 2103, and the torsion spring lower joint 1902 is fixed on the lower torsion spring fixing hole 1801.

[0064] In this embodiment, Figure 1-17As shown, the present invention drives the isolating switch driving gear 2, the isolating switch opening and closing indicator gear 3, the transmission gear 5 4, the isolating switch opening and closing control intermittent gear 5, the isolating switch opening and closing control intermittent gear 6, the grounding switch rod 8, the grounding switch opening and closing control intermittent gear 9, the ball bearing transmission gear 10, the grounding switch driving gear 4 11, the grounding switch opening and closing indicator gear 12, the transmission gear 2 13, the transmission gear 3 14, the circuit breaker rod 15, the circuit breaker opening and closing control intermittent gear 16, the circuit breaker opening and closing indicator gear 17, the ball bearing positioning gear 20, the bidirectional torsion spring energy storage gear 21 and the rack 23 to move, so that the operator can only operate the grounding switch, the isolating switch and the circuit breaker in the power transmission operation, and the high-voltage cabinet can be powered on in this operation mode. In the maintenance operation, the circuit breaker can only be opened, the isolating switch can be opened, and the grounding switch can be closed, and the high-voltage cabinet can be repaired in this operation mode. The purpose of intrinsic safety is achieved.

[0065] The fast cable room locking function is realized by the cable room locking rod 24 and the cable room door opening interlocking device 26. Due to the existence of the cable room locking rod 24, the cable room can only be opened when the high-voltage cabinet is in the maintenance operation state. When the cable room door is opened, the cable room door opening interlocking device 26 is operated. Thus, the movement path of the rack 23 is blocked, and the cable room door can only be closed after the maintenance is completed, and then the power transmission operation can be carried out. It can further improve the intrinsic safety of the equipment.

[0066] Example 2

[0067] Power supply operation,

[0068] When power supply operation is required, the operator inserts the operating handle into the operating handle latch shaft 7 and rotates it counterclockwise. The operating handle latch shaft 7 will drive the isolating switch opening and closing control intermittent gear 6 and the grounding switch opening and closing control intermittent gear 9 fixed thereon to rotate counterclockwise.

[0069] The grounding switch opening and closing control intermittent gear 9 enters the stroke, and its counterclockwise rotation drives the grounding switch driving gear 4 11 to rotate clockwise. The grounding switch driving gear 4 11 drives the grounding switch rod 8 fixed to it to perform the opening movement by rotating clockwise. At the same time, it drives the grounding switch opening and closing indication gear 12 to rotate counterclockwise. When the disconnecting switch opening and closing control intermittent gear 6 rotates 90°, the grounding switch rod 8 reaches the opening position. The grounding switch opening and closing indication gear 12 displays opening. At the same time, the grounding switch opening and closing control intermittent gear 9 leaves the stroke and no longer drives the grounding switch driving gear 4 11 to rotate.

[0070] The isolating switch closing and opening control intermittent gear 6 rotates counterclockwise, driving the transmission gear 5 4 and the ball bearing transmission gear 10 to rotate clockwise, and at the same time drives the rack 23 to move downward.

[0071] The transmission gear 5 4 rotates clockwise to rotate its fixed shaft, and the rotation of the shaft drives the disconnector opening and closing control intermittent gear 5 to rotate clockwise. When the disconnector opening and closing control intermittent gear 6 rotates 90°, the disconnector opening and closing control intermittent gear 5 enters the stroke, drives the disconnector drive gear 2 to rotate counterclockwise, and drives the fixed disconnector rod 1 to perform the closing movement. At the same time, the disconnector drive gear 2 drives the disconnector opening and closing indicator tooth 3 to rotate clockwise. When the disconnector opening and closing control intermittent gear 6 rotates 180°, the disconnector rod 1 reaches the closing position. The disconnector opening and closing indicator tooth 3 shows closed. At the same time, the disconnector opening and closing control intermittent gear 5 leaves the stroke and no longer drives the disconnector drive gear 2 to rotate.

[0072] The ball bearing transmission gear 10 drives the transmission gear 2 13 to rotate counterclockwise by rotating clockwise. The transmission gear 2 13 drives the transmission gear 3 14 to rotate clockwise.

[0073] The transmission gear 3 14 rotates clockwise to drive the fixed shaft to rotate, and the rotation of the shaft drives the circuit breaker opening and closing control intermittent gear 16 to rotate. At the same time, the clockwise rotation of the transmission gear 3 14 drives the ball bearing positioning gear 20 to rotate counterclockwise. When the disconnector opening and closing control intermittent gear 6 rotates 180°, the circuit breaker opening and closing control intermittent gear 16 enters the stroke, driving the bidirectional torsion spring energy storage gear 21 to rotate counterclockwise. At this time, the bidirectional torsion spring energy storage gear 21 drives the bidirectional torsion spring 19 fixed thereon to store energy. At the same time, the bidirectional torsion spring energy storage gear 21 drives the circuit breaker opening and closing indication gear 17 to rotate clockwise. When the disconnector opening and closing control intermittent gear 6 rotates 270°, the rack 23 reaches the bottom of the stroke, triggering the circuit breaker rod locking mechanism 22 to unlock the circuit breaker rod fixed wheel 18. At this time, the bidirectional torsion spring 19 releases the stored energy to drive the circuit breaker rod fixed wheel 18 to rotate counterclockwise. Thereby, the circuit breaker rod fixing wheel 18 drives the circuit breaker rod 15 fixed thereto to make a closing movement and reach the closing position. At the same time, the circuit breaker rod locking mechanism 22 locks the circuit breaker rod fixing wheel 18. The circuit breaker opening and closing indicating gear 17 displays as closed.

[0074] Example 3

[0075] Maintenance operations,

[0076] When the equipment is in the power-supply state and maintenance operation is required, the operator inserts the operating handle into the operating handle latch shaft 7 and rotates it clockwise. The operating handle latch shaft 7 will drive the isolating switch opening and closing control intermittent gear 6 and the earthing switch opening and closing control intermittent gear 9 fixed thereon to rotate clockwise.

[0077] The isolating switch closing and opening control intermittent gear 6 drives the transmission gear 5 4 and the ball bearing transmission gear 10 to rotate counterclockwise through its clockwise rotation, and drives the rack 23 to move upward at the same time.

[0078] The ball bearing transmission gear 10 drives the transmission gear 2 13 to rotate clockwise by rotating counterclockwise. The transmission gear 2 13 drives the transmission gear 3 14 to rotate counterclockwise.

[0079] The transmission gear 3 14 rotates counterclockwise to drive the fixed shaft to rotate, and the rotation of the shaft drives the circuit breaker opening and closing control intermittent gear 16 to rotate. At the same time, the ball bearing positioning gear 20 rotates clockwise through the counterclockwise rotation of the transmission gear 3 14. When the disconnector opening and closing control intermittent gear 6 starts to rotate, the circuit breaker opening and closing control intermittent gear 16 is in the stroke and drives the bidirectional torsion spring energy storage gear 21 to rotate clockwise. At this time, the bidirectional torsion spring energy storage gear 21 drives the bidirectional torsion spring 19 fixed thereon to store energy. At the same time, the bidirectional torsion spring energy storage gear 21 drives the circuit breaker opening and closing indication gear 17 to rotate counterclockwise. When the disconnector opening and closing control intermittent gear 6 rotates 90°, the rack 23 moves upward, driving the circuit breaker rod locking mechanism trigger shaft 25 on the cable chamber locking rod 24 to trigger the circuit breaker rod locking mechanism 22 to unlock the circuit breaker rod fixed wheel 18. At this time, the bidirectional torsion spring 19 releases the stored energy and drives the circuit breaker rod fixed wheel 18 to rotate clockwise. Thereby, the circuit breaker rod fixing wheel 18 drives the circuit breaker rod 15 fixed thereto to perform the opening movement and reach the opening position. At the same time, the circuit breaker rod locking mechanism 22 locks the circuit breaker rod fixing wheel 18. The circuit breaker opening and closing indicating gear 17 displays as opening. At the same time, the circuit breaker opening and closing control intermittent gear 16 leaves the stroke and no longer drives the bidirectional torsion spring energy storage gear 21 to rotate.

[0080] The transmission gear 5 4 rotates counterclockwise to rotate its fixed shaft, and the rotation of the shaft drives the disconnector switch opening and closing control intermittent gear 5 to rotate counterclockwise. When the disconnector switch opening and closing control intermittent gear 6 rotates 90°, the disconnector switch opening and closing control intermittent gear 5 enters the stroke, drives the disconnector switch driving gear 2 to rotate clockwise, and drives the disconnector switch rod 1 fixed to it to perform the opening movement. At the same time, the disconnector switch driving gear 2 drives the disconnector switch opening and closing indicator gear 3 to rotate counterclockwise. When the disconnector switch opening and closing control intermittent gear 6 rotates 180°, the disconnector switch rod 1 reaches the opening position. The disconnector switch opening and closing indicator gear 3 is displayed as opening. At the same time, the disconnector switch opening and closing control intermittent gear 5 leaves the stroke and no longer drives the disconnector switch driving gear 2 to rotate.

[0081] The intermittent gear 9 of the grounding switch opening and closing control controls the intermittent gear. When the intermittent gear 6 of the disconnecting switch opening and closing control rotates 180°, it enters the stroke, and through its clockwise rotation, it drives the grounding switch driving gear 4 11 to rotate counterclockwise. The grounding switch driving gear 4 11 drives the grounding switch rod 8 fixed to it to perform the closing movement by rotating counterclockwise. At the same time, it drives the grounding switch opening and closing indication gear 12 to rotate clockwise. When the intermittent gear 6 of the disconnecting switch opening and closing control rotates 270°, the grounding switch rod 8 reaches the closing position. The grounding switch opening and closing indication gear 12 is displayed as closed. At this time, the rack 23 reaches the top. At the same time, the upper torsion spring fixing hole 2103 on the bidirectional torsion spring energy storage gear 21 contacts the energy storage gear limit point 2706. The disconnecting switch opening and closing control intermittent gear 6 can no longer rotate clockwise.

[0082] The entire maintenance operation is now completed.

[0083] Example 4

[0084] The energy storage gear limit point 2706 can effectively prevent personnel from operating in the reverse direction. When the operator attempts to operate clockwise when the grounding switch rod 8 is in the closed state, the isolating switch opening and closing control intermittent gear 6 drives the ball bearing transmission gear 10 to rotate counterclockwise. The ball bearing transmission gear 10 drives the transmission gear 2 13 to rotate clockwise by rotating counterclockwise. The transmission gear 2 13 drives the transmission gear 3 14 to rotate counterclockwise by rotating clockwise. The transmission gear 3 14 drives the ball bearing positioning gear 20 to rotate clockwise by rotating counterclockwise. When the positioning pin 2 2001 on the ball bearing positioning gear 20 rotates clockwise, it will drive the bidirectional torsion spring energy storage gear 21 to rotate clockwise through the slide groove 2101. At this time, the upper torsion spring fixing hole 2103 will touch the energy storage gear limit point 2706, making the bidirectional torsion spring energy storage gear 21 unable to rotate. Therefore, the entire gear system cannot be operated in the reverse direction.

[0085] The cable room locking rod 24 is fixed on the rack 23 and works together with the cable room door opening interlocking device 26 to play an interlocking role.

[0086] When the high-voltage cabinet needs to be repaired, when the maintenance personnel open the cable room door, the cable room door loses the pressure on the contact 26012 under the cable room interlocking rod. At this time, the previously stressed bidirectional torsion spring 2603 begins to drive the spring positioning groove 26013 to move, thereby rotating the cable room interlocking rod 2601. At the same time, the upper limit position 26011 of the cable room interlocking rod rotates to the locked position, that is, below the rack 23

[0087] Since the upper limit position 26011 of the cable room interlocking rod blocks the movement path of the rack 23, personnel cannot perform opening and closing operations on the high-voltage cabinet at this time, thereby preventing misoperation and ensuring the safety of maintenance work.

[0088] When the high-voltage cabinet needs to be closed, the cable room door needs to be closed. When the cable room door is closed, pressure will be applied to the lower contact 26012 of the cable room interlocking rod. The lower contact 26012 of the cable room interlocking rod starts to drive the spring positioning groove 26013 to move, so that the cable room interlocking rod 2601 rotates. At this time, the bidirectional torsion spring 2603 starts to store energy under force, and at the same time, the upper limit position 26011 of the cable room interlocking rod rotates to the unlocking position, and the rack 23 can move downward.

[0089] When the rack 23 starts to move downward, the cable room locking rod 24 fixed thereon moves downward together to lock the cable room door, and the cable room cannot be opened at this time. The cable room door can only be opened when the grounding switch rod 8 or the grounding switch opening and closing indicating gear 12 is in the closed state.

[0090] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A high-voltage cabinet opening and closing operating mechanism, comprising a mechanism support plate (27), characterized in that: The mechanism support plate (27) is provided with a rack slide groove (2701), a cable room door opening interlock device fixing point (2702), a positioning rod slide groove (2703), a circuit breaker locking mechanism positioning hole (2704), a circuit breaker rod positioning hole (2705), an energy storage gear limit point (2706), a switch opening and closing indication gear positioning point (2707), an isolating switch rod positioning hole (2708), an earthing switch rod positioning hole (2709), a transmission gear positioning hole (2710) and an operating handle latch shaft positioning hole (2711); the mechanism support plate (27) is rotatably connected with an isolating switch rod (1), an earthing switch rod (8) and a circuit breaker rod (15); one end of the isolating switch rod (1) passing through the isolating switch rod positioning hole (2708) is fixedly connected to the isolating switch driving gear (2); one end of the earthing switch rod (8) passing through the operating handle latch shaft positioning hole (2711) is fixedly connected to the operating handle. The invention relates to a transmission gear (6) and an intermittent gear (9) for controlling the opening and closing of a grounding switch. One end of a circuit breaker rod (15) passing through a transmission gear positioning hole (2710) is fixedly connected with a circuit breaker rod fixing wheel (18), a bidirectional torsion spring (19), a ball bearing positioning gear (20) and a bidirectional torsion spring energy storage gear (21). The mechanism support plate (27) is rotatably connected with a transmission gear five (4), an isolating switch opening and closing intermittent gear (5), a ball bearing transmission gear one (10), a grounding switch driving gear four (11), a grounding switch opening and closing indication gear (12), a transmission gear two (13), a transmission gear three (14), a circuit breaker opening and closing intermittent gear (16) and a circuit breaker opening and closing indication gear (17). The invention also includes a circuit breaker rod locking mechanism (22), a rack (23), a cable chamber locking rod (24), a circuit breaker rod locking mechanism trigger shaft (25) and a cable chamber door opening interlocking device (26).

2. A high-voltage cabinet opening and closing operating mechanism according to claim 1, characterized in that: The rack (23) is meshedly connected with the operating handle transmission gear (6), the operating handle transmission gear (6) is meshedly connected with the transmission gear five (4), the isolating switch opening and closing control intermittent gear (5) is meshedly connected with the isolating switch driving gear (2), the isolating switch driving gear (2) is meshedly connected with the isolating switch opening and closing indication gear (3), the grounding switch opening and closing control intermittent gear (9) is meshedly connected with the grounding switch driving gear four (11), the grounding switch driving gear four (11) is meshedly connected with the grounding switch The ground switch opening and closing indication gear (12) is meshed and connected, the ball bearing transmission gear 1 (10) is meshed and connected with the transmission gear 2 (13), the transmission gear 2 (13) is meshed and connected with the transmission gear 3 (14), the transmission gear 3 (14) is meshed and connected with the ball bearing positioning gear (20), the circuit breaker opening and closing control intermittent gear (16) is meshed and connected with the bidirectional torsion spring energy storage gear (21), and the bidirectional torsion spring energy storage gear (21) is meshed and connected with the circuit breaker opening and closing indication gear (17).

3. A high-voltage cabinet opening and closing operating mechanism according to claim 2, characterized in that: The cable room door opening interlocking device (26) is composed of a cable room interlocking rod (2601), an upper positioning sleeve (2602), a bidirectional torsion spring (2603) and a lower positioning sleeve (2604), and the cable room interlocking rod (2601) is provided with an upper limit position (26011) of the cable room interlocking rod, a lower contact point (26012) of the cable room interlocking rod and a spring positioning groove (26013). The sleeve (2604) is fixed on the cable room door opening interlocking device fixing point (2702), the bidirectional torsion spring (2603) is loosely fitted on the cable room interlocking rod (2601), and one end of the bidirectional torsion spring (2603) is fixed on the spring positioning groove (26013), and the other end of the bidirectional torsion spring (2603) is fixed on the upper positioning sleeve (2602), and the cable room interlocking rod (2601) is loosely fitted between the upper positioning sleeve (2602) and the lower positioning sleeve (2604).

4. A high-voltage cabinet opening and closing operating mechanism according to claim 3, characterized in that: The rack (23) slides in clearance on the rack slide groove (2701); the cable room door opening interlock device (26) is fixed to the cable room door opening interlock device fixing point (2702) through an upper positioning sleeve (2602) and a lower positioning sleeve (2604); the positioning rod slide groove (2703) and the positioning rod (2205) are in clearance fit; the circuit breaker rod locking mechanism (22) is fixed to the circuit breaker locking mechanism positioning hole (2206) through a fixing pin (2206). 2704), the circuit breaker rod (15) and the circuit breaker rod positioning hole (2705) are clearance-fitted, and the ball bearing positioning gear (20) is fixed to the outermost side of the circuit breaker rod (15), the bidirectional torsion spring energy storage gear (21), the ball bearing positioning gear (20), the bidirectional torsion spring (19) and the circuit breaker rod fixing wheel (18) are all clearance-fitted on the circuit breaker rod (15), and the circuit breaker rod fixing wheel (18) is close to one side of the mechanism support plate (27).

5. A high-voltage cabinet opening and closing operating mechanism according to claim 4, characterized in that: The disconnector switch opening and closing indication gear (3), the earthing switch switch opening and closing indication gear (12) and the circuit breaker switch opening and closing indication gear (17) are all fixed on the shaft, and the shaft and the switch opening and closing indication gear positioning point (2707) at the corresponding position are clearance matched. The transmission gear five (4), the transmission gear two (13) and the transmission gear three (14) are fixed on the shaft, and the shaft and the transmission gear positioning hole (2710) at the corresponding position are clearance matched. The transmission gear five (4) is fixed to the outermost side of the shaft, followed by the disconnector switch opening and closing control intermittent gear (5). The transmission gear three (14) is fixed to the outermost side of the shaft, followed by the circuit breaker switch opening and closing control intermittent gear (16). The operating handle latch shaft (7) and the operating handle latch shaft positioning hole (2711) are clearance matched, and the operating handle transmission gear (6) is fixed on the operating handle latch shaft (7).

6. A high-voltage cabinet opening and closing operating mechanism according to claim 5, characterized in that: The circuit breaker rod locking mechanism (22) is composed of a fixed piece (2201), a spring (2202), a push rod (2203), a rocker (2204), a positioning rod (2205) and a fixing pin (2206); the circuit breaker rod locking mechanism (22) is fixed to a mechanism support plate (27) via the fixing pin (2206); the rocker (2204) is fixed to the fixed piece (2201) via an axial fixing hole; the spring (2202) is loosely fitted in the middle of the push rod (2203); the push rod (2204) is loosely fitted in the middle of the push rod (2203); and the push rod (2205) is loosely fitted in the middle of the push rod (2203). One side of the fixing member (203) is loosely fitted in the top rod guide hole of the fixing member (2201), and the other side of the top rod (2203) is fixed to the top rod fixing hole of the rocker (2204), the positioning rod (2205) is loosely fitted in the positioning rod slide groove (2703), one end of the positioning rod (2205) is fixed to the positioning rod fixing hole of the rocker (2204), and the closing positioning groove (1803) and the opening positioning groove (1804) provided on the circuit breaker rod fixing wheel (18) are used to fit the other end of the positioning rod (2205).

7. A high-voltage cabinet opening and closing operating mechanism according to claim 6, characterized in that: The bidirectional torsion spring energy storage gear (21) is composed of a slide groove (2101), a second ball bearing (2102), an upper torsion spring fixing hole (2103) and a first shaft hole (2104).

8. A high-voltage cabinet opening and closing operating mechanism according to claim 7, characterized in that: The ball bearing positioning gear (20) is composed of a second positioning pin (2001), a first ball bearing (2002) and a second shaft hole (2003).

9. A high-voltage cabinet opening and closing operating mechanism according to claim 8, characterized in that: The bidirectional torsion spring (19) is composed of an upper torsion spring joint (1901) and a lower torsion spring joint (1902), and a positioning pin 1 (1501) is arranged on the circuit breaker rod (15).

10. A high-voltage cabinet opening and closing operating mechanism according to claim 9, characterized in that: The ball bearing positioning gear (20) is installed on the circuit breaker rod (15) through the provided shaft hole 2 (2003) and the shaft hole 1 (2104), and the positioning pin 2 (2001) is slidably matched with the slide groove (2101), the circuit breaker rod fixing wheel (18) is fixed on the circuit breaker rod (15) through the shaft hole (1802) and the positioning pin 1 (1501), the torsion spring upper joint (1901) on the bidirectional torsion spring (19) is fixed in the upper torsion spring fixing hole (2103), and the torsion spring lower joint (1902) is fixed on the lower torsion spring fixing hole (1801).

Images