One-way misoperation preventing switch operating handle
Patent Information
- Application Number
- CN202522144428.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-10
- Publication Date
- 2026-09-29
- Estimated Expiration
- 2035-10-10
AI Technical Summary
[0003]高压开关柜如果出现误操作，会对高压输电网产生极大的破坏，因此人工操作时必须按照规程进行，防止连续进行正转和反转操作
该单向防误操作的开关操作手柄，防反转斜坡的设置使空心圆形操作杆一端插入高压开关柜操作孔后只有一个方向能够受力旋转，另一个方向无法受力旋转，必须取出空心圆形操作杆，换一端插入高压开关柜操作孔才能进行反向旋转操作，通过这样的结构能够防止操作人员连续进行正转和反转，避免马达反复启停损害设备。
Smart Images
Figure CN224816989U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of operating handles for high-voltage switchgear, specifically a one-way switch operating handle to prevent misoperation. Background Technology
[0002] High-voltage switchgear is equipment that plays a role in switching, controlling or protecting power in the generation, transmission, distribution, conversion and consumption of power systems. High-voltage switchgear needs to be operated manually during start-up, shutdown and maintenance. The motor is started or stopped by inserting the switch operating handle into the operating hole and rotating the handle.
[0003] If a high-voltage switchgear is misoperated, it can cause great damage to the high-voltage transmission network. Therefore, manual operation must be carried out in accordance with the procedures to prevent continuous forward and reverse operation. Utility Model Content
[0004] The technical problem this invention aims to solve is to overcome existing defects and provide a one-way anti-misoperation switch operating handle. The anti-reverse ramp design ensures that after one end of the hollow circular operating rod is inserted into the operating hole of the high-voltage switchgear, it can only rotate in one direction, while the other direction cannot be rotated. The hollow circular operating rod must be removed and the other end inserted into the operating hole of the high-voltage switchgear to perform reverse rotation. This structure can prevent operators from continuously rotating in both directions, avoiding repeated starting and stopping of the motor and damage to the equipment, and can effectively solve the problems in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a one-way anti-misoperation switch operating handle, including an operating lever mechanism, the operating lever mechanism comprising a hollow circular operating lever and a rectangular slot, the front end and rear end of the hollow circular operating lever respectively having two slots symmetrical about the center line of the hollow circular operating lever, the rectangular slot having a semi-circular end near the middle of the hollow circular operating lever, the operating lever mechanism also including an anti-reverse ramp, the rectangular slot having an anti-reverse ramp provided along one side of the end edge of the hollow circular operating lever in a clockwise direction; It also includes a rotating rod mechanism, which is installed in the middle of the hollow circular operating rod.
[0006] A high-voltage switchgear operating port is provided on the front side. A crossbar is installed inside the operating port. During start-up, shutdown, and maintenance, the operator inserts the rear end of a hollow circular operating rod into the operating port, causing the two rectangular slots at the rear end of the rod to engage with the ends of the crossbar. Rotating the hollow circular operating rod clockwise via a rotating rod mechanism causes the crossbar to rotate clockwise through the rectangular slots. If the operating rod is rotated counterclockwise, the crossbar will not rotate clockwise due to the rectangular slots. The slot has an anti-reverse ramp along the clockwise side of the end edge of the hollow circular operating rod. The crossbar slides off along the anti-reverse ramp, thus preventing the hollow circular operating rod from rotating the crossbar counterclockwise. When the rear end of the hollow circular operating rod is inserted into the operating hole of the high-voltage switchgear, it can only rotate the crossbar clockwise. The rectangular slot is semi-circular at the middle of the hollow circular operating rod, which can prevent the rectangular slot from being perfectly locked with the crossbar and prevent the crossbar from sliding off smoothly along the anti-reverse ramp when the hollow circular operating rod is rotated counterclockwise. When the crossbar needs to be rotated counterclockwise, invert the front and rear ends of the hollow circular operating rod, with the front end facing the rear. Because the hollow circular operating rod is inverted, the anti-reverse ramp at the rear is located on the counterclockwise side of the rectangular slot along the edge of the hollow circular operating rod. Rotating the hollow circular operating rod counterclockwise will cause it to rotate the crossbar counterclockwise through the rectangular slot. If the hollow circular operating rod is rotated clockwise, the crossbar will slip along the anti-reverse ramp, preventing the hollow circular operating rod from rotating the crossbar clockwise.
[0007] Furthermore, the rotating rod mechanism includes a base plate, a mounting column, a rotating rod unfolding and locking assembly, and a hollow circular rotating rod. The base plate is fixedly connected to the middle of the hollow circular operating rod, and the middle of the mounting column is fixedly connected to the middle of the base plate. Two folding slots are respectively opened on the upper and lower sides of the hollow circular operating rod. The two ends of the mounting column correspond to the middle of the two folding slots, and the two ends of the mounting column are movably connected to one end of the two hollow circular rotating rods. Each hollow circular rotating rod is connected to the end of the corresponding mounting column through the rotating rod unfolding and locking assembly. The base plate is used to mount and fix the mounting post. A hollow circular rotating rod facilitates the forward and reverse rotation of the hollow circular operating rod. The hollow circular rotating rod can move relative to the end of the mounting post. When not in use, the hollow circular rotating rod can be folded into the folding slot, reducing space occupation and facilitating storage. In use, the two hollow circular rotating rods are unfolded, making them perpendicular to the hollow circular operating rod. At this time, the rotating rod unfolding locking assembly keeps the hollow circular rotating rod and the mounting post in a straight line, facilitating the rotation of the hollow circular operating rod. The hollow circular rotating rod cannot be folded at this time, ensuring uninterrupted use.
[0008] Furthermore, the rotating rod mechanism also includes a movable shaft and a movable short rod. Two mounting slots are respectively formed at both ends of the mounting column. The middle portions of the two mounting slots are movably connected to one end of each of the two movable short rods via the two movable shafts. The other ends of the two movable short rods are respectively fixedly connected to one end of each of the two hollow circular rotating rods. The mounting slots, movable shafts, and movable short rods cooperate to achieve a movable connection between the end of the mounting column and the hollow circular rotating rods, facilitating the folding of the hollow circular rotating rods into the folding slots.
[0009] Furthermore, the rotating rod unfolding and locking assembly also includes a fixing ring, a compression spring, and a locking sleeve. A locking sleeve is slidably fitted onto the outer side of the end of each hollow circular rotating rod near the mounting post. The locking sleeve is slidably fitted onto the corresponding end of the mounting post. A fixing ring is fixedly fitted onto the outer side of each hollow circular rotating rod. A compression spring is fitted onto the section of the hollow circular rotating rod between the fixing ring and the locking sleeve. The spring force of the compression spring pushes the locking sleeve towards the mounting post. At this time, the locking sleeve simultaneously fits onto the ends of both the mounting post and the hollow circular rotating rod, keeping them aligned. The hollow circular rotating rod is unfolded and locked. When it is necessary to fold the hollow circular rotating rod, the locking sleeve is slid onto the corresponding fixing ring, compressing the compression spring and disengaging the locking sleeve from the end of the mounting post, allowing the hollow circular rotating rod to be folded smoothly.
[0010] Furthermore, the rotating rod unfolding locking assembly also includes control rings. Two control rings are respectively provided on the outer side of the end of each locking sleeve away from the middle of the mounting post. The control rings facilitate sliding the locking sleeve onto the corresponding fixing ring.
[0011] Furthermore, it also includes a torque extension mechanism, which comprises an extension slide and a fastening screw. The extension slide is slidably sleeved on the outer side of the hollow circular rotating rod away from the mounting post. The fastening screw is threadedly connected to the side of the extension slide near the mounting post, and the fastening screw abuts against the outer side of the corresponding hollow circular rotating rod. Loosening the fastening screw allows the extension slide to slide along the hollow circular rotating rod, while tightening the fastening screw relocks the extension slide and the hollow circular rotating rod. When the extension slide slides away from the hollow circular operating rod, the hollow circular operating rod can be rotated with less force using the extension slide and the hollow circular rotating rod. When it is necessary to fold the hollow circular rotating rod, the fastening screw can be loosened to allow the extension slide to slide closer to the hollow circular operating rod, shortening the overall length of the extension slide and the hollow circular rotating rod, making it easier to fold and store in the folding slot.
[0012] Furthermore, the torque extension mechanism also includes a sealing head, with a sealing head respectively provided on the inner side of the end of each extension cylinder away from the mounting post. The sealing head is made of rubber to seal the end of the extension cylinder and prevent the edge of the extension cylinder from being uncomfortable to the touch.
[0013] Compared with existing technologies, the advantages of this one-way anti-misoperation switch operating handle are: The one-way anti-misoperation switch operating handle features an anti-reverse ramp design. This ensures that once one end of the hollow circular operating rod is inserted into the operating hole of the high-voltage switchgear, it can only rotate in one direction. The other direction cannot be rotated. The hollow circular operating rod must be removed and the other end inserted into the operating hole of the high-voltage switchgear to perform reverse rotation. This structure prevents operators from continuously rotating in both directions, avoiding repeated starting and stopping of the motor and preventing damage to the equipment. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the longitudinal cross-sectional structure of this utility model; Figure 3 This utility model Figure 2 A magnified view of the structure at point A in the middle; Figure 4 This is a schematic diagram of the rotating rod mechanism and the torque extension mechanism in this utility model; Figure 5 This utility model Figure 4 A magnified schematic diagram of the structure at point B in the middle; Figure 6 This is a schematic diagram of the structure of this utility model when it is inserted into the operating hole of the high-voltage switchgear; In the diagram: 1. Operating lever mechanism; 11. Hollow circular operating lever; 12. Rectangular slot; 13. Anti-reverse ramp; 14. Folding through slot; 15. Rotating marking platform; 2. Rotating rod mechanism; 21. Seat plate; 22. Mounting column; 23. Movable shaft; 24. Movable short rod; 25. Hollow circular rotating rod; 26. Fixing ring; 27. Compression spring; 28. Locking sleeve; 29. Control ring; 3. Torque extension mechanism; 31. Guide groove; 32. Guide strip; 33. Extension slide; 34. Fastening screw; 35. Sealing head; 4. High voltage switch cabinet operating hole; 5. Crossbar. Detailed Implementation
[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0016] Example 1, please refer to Figures 1 to 6This utility model provides a technical solution: a one-way anti-misoperation switch operating handle, including an operating lever mechanism 1. The operating lever mechanism 1 includes a hollow circular operating lever 11 and a rectangular slot 12. The front end and rear end of the hollow circular operating lever 11 are respectively provided with two slots 12 symmetrical about the center line of the hollow circular operating lever 11. The end of the rectangular slot 12 near the middle of the hollow circular operating lever 11 is semi-circular. The operating lever mechanism 1 also includes an anti-reverse ramp 13. The rectangular slot 12 is provided with an anti-reverse ramp 13 on one side of the end edge of the hollow circular operating lever 11 in a clockwise direction.
[0017] The control lever mechanism 1 also includes a rotating marking platform 15, with rotating marking platforms 15 respectively provided on both sides of the rear end and both ends of the front end of the hollow circular control lever 11.
[0018] The rotating marking platform 15 at the rear end of the hollow circular operating lever 11 can be affixed with a clockwise rotation marking, which means that the rear end of the hollow circular operating lever 11 can only perform rotational control when rotated clockwise. The rotating marking platform 15 at the front end of the hollow circular operating lever 11 can be affixed with a counterclockwise rotation marking, which means that when the front end of the hollow circular operating lever 11 is facing backward, it can only perform rotational control when rotated counterclockwise.
[0019] A rotating rod mechanism 2 is also provided, which is installed in the middle of the hollow circular operating rod 11.
[0020] The rotating rod mechanism 2 includes a base plate 21, a mounting post 22, a rotating rod unfolding and locking assembly, and a hollow circular rotating rod 25. The base plate 21 is fixedly connected to the middle of the hollow circular operating rod 11, and the middle of the mounting post 22 is fixedly connected to the middle of the base plate 21. Two folding slots 14 are respectively opened on the upper and lower sides of the hollow circular operating rod 11. The two ends of the mounting post 22 correspond to the middle of the two folding slots 14, and the two ends of the mounting post 22 are movably connected to one end of the two hollow circular rotating rods 25. Each hollow circular rotating rod 25 is connected to the end of the corresponding mounting post 22 through the rotating rod unfolding and locking assembly. The base plate 21 is used to install and fix the mounting post 22. The hollow circular rotating rod 25 facilitates the forward and reverse rotation of the hollow circular operating rod 11. The hollow circular rotating rod 25 can move relative to the end of the mounting post 22. When not in use, the hollow circular rotating rod 25 can be folded into the folding slot 14, which can reduce space occupation and facilitate storage. When in use, the two hollow circular rotating rods 25 are unfolded so that the two hollow circular rotating rods 25 are perpendicular to the hollow circular operating rod 11. At this time, the rotating rod unfolding locking component keeps the hollow circular rotating rod 25 and the mounting post 22 in a straight line, which facilitates the use of the hollow circular rotating rod 25 to rotate the hollow circular operating rod 11. At this time, the hollow circular rotating rod 25 cannot be folded, so it will not delay the use.
[0021] The rotating rod mechanism 2 also includes a movable shaft 23 and a movable short rod 24. Two mounting slots are respectively formed at both ends of the mounting column 22. The middle portions of the two mounting slots are movably connected to one end of each of the two movable short rods 24 via the two movable shafts 23. The other ends of the two movable short rods 24 are respectively fixedly connected to one end of each of the two hollow circular rotating rods 25. The mounting slots, movable shafts 23, and movable short rods 24 cooperate to achieve a movable connection between the end of the mounting column 22 and the hollow circular rotating rod 25, facilitating the folding of the hollow circular rotating rod 25 into the folding through slot 14.
[0022] The rotating rod deployment locking assembly also includes a retaining ring 26, a compression spring 27, and a locking sleeve 28. Each hollow circular rotating rod 25 has a locking sleeve 28 slidably sleeved on the outer side of one end near the mounting post 22. The locking sleeve 28 is slidably sleeved with the corresponding end of the mounting post 22. Each hollow circular rotating rod 25 has a retaining ring 26 fixedly sleeved on the outer side. The section of the hollow circular rotating rod 25 between the retaining ring 26 and the locking sleeve 28 is sleeved with a compression spring 27. The spring force of the compression spring 27 pushes the locking sleeve 28 to slide toward the mounting post 22. At this time, the locking sleeve 28 is simultaneously fitted onto the end of the mounting post 22 and the hollow circular rotating rod 25. The locking sleeve 28 keeps the mounting post 22 and the hollow circular rotating rod 25 on the same straight line. After the hollow circular rotating rod 25 is unfolded, it is locked. When it is necessary to fold the hollow circular rotating rod 25, the locking sleeve 28 is slid toward the corresponding fixing ring 26, the compression spring 27 is compressed, and the locking sleeve 28 is disengaged from the end of the mounting post 22. At this time, the hollow circular rotating rod 25 can be folded smoothly.
[0023] The rotating rod unfolding locking assembly also includes control rings 29. Two control rings 29 are respectively provided on the outer side of the end of each locking sleeve 28 away from the middle of the mounting post 22. The control rings 29 are designed to facilitate sliding the locking sleeve 28 onto the corresponding fixing ring 26.
[0024] In use, the high-voltage switchgear has an operating hole 4 on the front side. A crossbar 5 is installed inside the operating hole 4. During start-up, shutdown, and maintenance, the operator inserts the rear end of the hollow circular operating rod 11 into the operating hole 4, causing the two rectangular slots 12 at the rear end of the hollow circular operating rod 11 to engage with the ends of the crossbar 5. Rotating the hollow circular operating rod 11 clockwise via the rotating rod mechanism 2 causes the crossbar 5 to rotate clockwise through the rectangular slots 12. If the hollow circular operating rod 11 is rotated counterclockwise, the crossbar 5 will rotate clockwise due to the rectangular slots 12. 2. An anti-reverse ramp 13 exists along the clockwise side of the end edge of the hollow circular operating rod 11. The crossbar 5 slips off along the anti-reverse ramp 13, thus preventing the hollow circular operating rod 11 from driving the crossbar 5 to rotate counterclockwise. When the rear end of the hollow circular operating rod 11 is inserted into the operating hole 4 of the high-voltage switchgear, it can only drive the crossbar 5 to rotate clockwise. The rectangular slot 12 is semi-circular at one end near the middle of the hollow circular operating rod 11, which can prevent the rectangular slot 12 from being perfectly locked with the crossbar 5, and prevent the crossbar 5 from slipping off smoothly along the anti-reverse ramp 13 when the hollow circular operating rod 11 is rotated counterclockwise. When it is necessary to rotate the crossbar 5 counterclockwise, the front and rear ends of the hollow circular operating rod 11 are reversed, with the front end of the hollow circular operating rod 11 facing the rear. Since the front and rear directions of the hollow circular operating rod 11 are reversed, the anti-reverse ramp 13 located at the rear is on the side of the rectangular slot 12 along the counterclockwise direction of the end edge of the hollow circular operating rod 11. When the hollow circular operating rod 11 is rotated counterclockwise, it can drive the crossbar 5 to rotate counterclockwise through the rectangular slot 12. If the hollow circular operating rod 11 is rotated clockwise, the crossbar 5 will slip along the anti-reverse ramp 13, preventing the hollow circular operating rod 11 from driving the crossbar 5 to rotate clockwise.
[0025] Example 2, please refer to Figures 1 to 6 This utility model provides a technical solution: a one-way anti-misoperation switch operating handle. This embodiment is largely the same in structure as Embodiment 1, except that: A torque extension mechanism 3 is also provided, which includes an extension slide 33 and a fastening screw 34. The extension slide 33 is slidably sleeved on the outer side of the hollow circular rotating rod 25 away from the mounting post 22. The fastening screw 34 is threadedly connected to the side of the extension slide 33 near the mounting post 22. The fastening screw 34 abuts against the outer side of the corresponding hollow circular rotating rod 25.
[0026] The torque extension mechanism 3 also includes a guide groove 31 and a guide bar 32. The guide groove 31 is provided on the outer side of the hollow circular rotating rod 25. The guide groove 31 is distributed radially along the hollow circular rotating rod 25. The guide bar 32 is provided on the inner side of the extension slide cylinder 33 and is slidably connected to the guide groove 31. The guide groove 31 and the guide bar 32 prevent the extension slide cylinder 33 from rotating relative to the hollow circular rotating rod 25, making it convenient for the operator to hold and operate the extension slide cylinder 33 stably.
[0027] Loosening the fastening screw 34 allows the extension slide 33 to slide along the hollow circular rotating rod 25. Tightening the fastening screw 34 relocks the extension slide 33 and the hollow circular rotating rod 25. When the extension slide 33 slides away from the hollow circular operating rod 11, the hollow circular operating rod 11 can be rotated with less force using the extension slide 33 and the hollow circular rotating rod 25. When it is necessary to fold the hollow circular rotating rod 25, the fastening screw 34 can be loosened to allow the extension slide 33 to slide closer to the hollow circular operating rod 11, shortening the overall length of the extension slide 33 and the hollow circular rotating rod 25, making it easier to fold and store in the folding slot 14.
[0028] The torque extension mechanism 3 also includes a sealing head 35, with a sealing head 35 provided on the inner side of the end of each extension cylinder 33 away from the mounting post 22. The sealing head 35 is made of rubber and seals the end of the extension cylinder 33 to prevent the edge of the end of the extension cylinder 33 from being uncomfortable to the touch.
[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A one-way anti-misoperation switch operating handle, comprising an operating lever mechanism (1), wherein the operating lever mechanism (1) includes a hollow circular operating lever (11) and rectangular slots (12), wherein two slots (12) symmetrical about the center line of the hollow circular operating lever (11) are respectively provided at the front end and the rear end of the hollow circular operating lever (11), characterized in that, The rectangular slot (12) is semi-circular at one end near the middle of the hollow circular operating rod (11). The operating rod mechanism (1) also includes an anti-reverse ramp (13). The rectangular slot (12) is provided with an anti-reverse ramp (13) on one side of the end edge of the hollow circular operating rod (11) in a clockwise direction. It also includes a rotating rod mechanism (2), which is installed in the middle of the hollow circular operating rod (11).
2. The one-way anti-misoperation switch operating handle according to claim 1, characterized in that: The rotating rod mechanism (2) includes a base plate (21), a mounting column (22), a rotating rod unfolding and locking assembly, and a hollow circular rotating rod (25). The base plate (21) is fixedly connected to the middle of the hollow circular operating rod (11), and the middle of the mounting column (22) is fixedly connected to the middle of the base plate (21). Two folding slots (14) are respectively opened on the upper and lower sides of the hollow circular operating rod (11). The two ends of the mounting column (22) correspond to the middle of the two folding slots (14), and the two ends of the mounting column (22) are movably connected to one end of the two hollow circular rotating rods (25). Each hollow circular rotating rod (25) is connected to the end of the corresponding mounting column (22) through the rotating rod unfolding and locking assembly.
3. A one-way anti-misoperation switch operating handle according to claim 2, characterized in that: The rotating rod mechanism (2) also includes a movable shaft (23) and a movable short rod (24). Two mounting slots are opened at both ends of the mounting column (22). The middle part of the two mounting slots is movably connected to one end of the two movable short rods (24) through the two movable shafts (23). The other end of the two movable short rods (24) is fixedly connected to one end of the two hollow circular rotating rods (25).
4. A one-way anti-misoperation switch operating handle according to claim 3, characterized in that: The rotating rod unfolding locking assembly also includes a fixing ring (26), a compression spring (27), and a locking sleeve (28). Each hollow circular rotating rod (25) has a locking sleeve (28) slidably sleeved on the outer side of one end near the mounting post (22). The locking sleeve (28) is slidably sleeved on the end of the corresponding mounting post (22). Each hollow circular rotating rod (25) has a fixing ring (26) fixedly sleeved on the outer side. The section of the hollow circular rotating rod (25) between the fixing ring (26) and the locking sleeve (28) is sleeved with a compression spring (27).
5. A one-way anti-misoperation switch operating handle according to claim 4, characterized in that: The rotating rod unfolding locking assembly also includes control rings (29), with two control rings (29) respectively provided on the outer side of one end of each locking sleeve (28) away from the middle of the mounting post (22).
6. A one-way anti-misoperation switch operating handle according to claim 2, characterized in that: It also includes a torque extension mechanism (3), which includes an extension slide (33) and a fastening screw (34). The extension slide (33) is slidably sleeved on the outer side of the hollow circular rotating rod (25) away from the mounting post (22). The fastening screw (34) is threadedly connected to the side of the extension slide (33) near the mounting post (22). The fastening screw (34) abuts against the outer side of the corresponding hollow circular rotating rod (25).
7. A one-way anti-misoperation switch operating handle according to claim 6, characterized in that: The torque extension mechanism (3) also includes a sealing head (35), and a sealing head (35) is provided on the inner side of the end of each extension slide (33) away from the mounting column (22).