Switch cabinet rocking handle with rotary counter

Abstract

The utility model belongs to the technical field of electric power production, and relates to a switch cabinet rocking handle with a rotary counter. The switch cabinet rocking handle with the rotary counter comprises a rocking handle body and a counting device. The rocking handle body comprises a rocking handle connected with the switch cabinet, a central shaft connected with the rocking handle and a handle which is arranged on the periphery of the central shaft and can rotate relative to the central shaft; the counting device is used for counting the number of rotation turns of the rocking handle body and comprises an installation frame arranged on the center shaft and a counting mechanism which is arranged on the installation frame and can be matched with the handle. During use, an operator firstly connects the crank with the switch cabinet and then holds the handle and fixes the handle to drive the crank and the central shaft to rotate relative to the switch cabinet, and according to the relative movement, when the central shaft rotates around the joint of the crank and the switch cabinet by a circle, the handle is fixed and rotates around the central shaft by a circle along with the rotation of the central shaft. The counting mechanism is further driven to start counting, and the number of rotation turns of the rocking handle body is recorded.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric power production and relates to a switch cabinet crank with a rotation counter. Background Art

[0002] 10kV high-voltage switchgear in power systems typically utilizes metal-enclosed, assembled distribution equipment. When the trolley switch is rotated from the test position to the operating position, the contact between the upper and lower contacts of the switch and the busbar and cable contacts cannot be directly observed. In existing technology, operators typically use the status indicator light or a remote control to rotate the switch until it stops, rather than performing a full 20 rotations as required by regulations and manufacturer's technical data. Poor contact between the upper and lower contacts of the 10kV high-voltage switchgear and the busbar and cable contacts can cause discharge, heating, and, in severe cases, melting, posing a safety risk to power equipment and user power supply. Utility Model Content

[0003] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a switch cabinet crank with a rotation counter which can record the number of rotations of the crank.

[0004] The utility model adopts the following technical solutions:

[0005] A switch cabinet crank with a rotation counter comprises a crank body and a counting device; the crank body comprises a crank handle connectable to the switch cabinet, a central axis connected to the crank handle, and a handle arranged on the periphery of the central axis and rotatable relative to the central axis; the counting device is used to count the number of rotations of the crank body, and comprises a mounting bracket arranged on the central axis and a counting mechanism arranged on the mounting bracket and capable of cooperating with the handle.

[0006] Furthermore, the counting mechanism includes a counting gear set rotatably arranged on the central axis, a driving gear set rotatably arranged on the mounting frame and meshing with the counting gear set, and a first push rod arranged on the opposite surface of the handle and the driving gear set to drive the driving gear set to rotate.

[0007] Furthermore, the counting gear group includes a first counting gear that is rotatable and used to record the number of rotations of the units digit and a second counting gear that is used to record the tens digit, and the first counting gear is arranged on the side close to the handle. The first counting gear is provided with a second push rod on the side opposite to the second counting gear that can drive the driving gear group to rotate.

[0008] Furthermore, the driving gear group includes a first driving gear and a second driving gear that are rotatably arranged on the mounting frame at intervals, the upper end of the first driving gear is engaged with the lower end portion of the first counting gear, and the upper end of the second driving gear is engaged with the lower end portion of the second counting gear. The first push rod can drive the first driving gear to rotate, and the second push rod can drive the second driving gear to rotate.

[0009] Furthermore, the first counting gear includes a first circular seat body, a first meshing tooth portion arranged on one side of the first circular seat body and capable of meshing with the first driving gear, and a units-digit counting digit group arranged on the outer peripheral surface of the first circular seat body. The first push rod is arranged opposite to the first meshing tooth portion and can be located in the tooth gap of the first driving gear, thereby only driving the first driving gear to rotate.

[0010] Furthermore, the second counting gear includes a second circular seat body, a second meshing tooth portion arranged on one side of the second circular seat body and capable of meshing with the second drive gear, and a tens-digit counting digit group arranged on the outer peripheral surface of the second circular seat body. The second push rod is arranged opposite to the second meshing tooth portion and can be located in the tooth gap of the second drive gear, thereby only driving the second drive gear to rotate.

[0011] Furthermore, the mounting frame includes a mounting frame body arranged on the central axis between the crank and the handle, a mounting shaft arranged at the lower end of the mounting frame body and extending toward the handle for installing the driving gear set, and a numerical display window arranged at the upper end of the mounting frame body and extending toward the handle and opposite to the counting gear set above and below.

[0012] Furthermore, the central axis includes a first threaded segment and a second threaded segment respectively arranged at the front and rear of the central axis. The crank is fixed and locked on the first threaded segment by a locking nut, and the second threaded segment is provided with a limiting nut for preventing the handle from detaching from the central axis.

[0013] Furthermore, the crank includes a main body portion connected to the central axis at the upper end, an extension portion vertically arranged at the lower end of the main body portion and extending downward, and a connecting portion horizontally arranged at the end of the extension portion and extending outward, and the connecting portion is provided with a slot connected to the switch cabinet.

[0014] As can be seen from the above description of the utility model, compared with the prior art, the beneficial effects of the utility model are as follows: the present application cooperates between the crank body and the counting device for counting the number of rotations of the crank body, and defines the specific structure of the counting device, so that the operator does not need to count the number of rotations while cranking during operation, which can effectively avoid the risk of improper operation and greatly improve the operation efficiency and reliability; when in use, the operator first connects the crank to the switch cabinet, and then the operator holds the handle, fixes the handle and drives the crank and the central axis to rotate relative to the switch cabinet. According to the relative movement, when the central axis rotates one circle around the connection between the crank and the switch cabinet, the handle is fixed and rotates one circle around the central axis as the central axis rotates, thereby driving the counting mechanism to start counting and record the number of rotations of the crank body;

[0015] By providing a notch on the connecting portion for connection with the switch cabinet, the crank body can be adapted to switch cabinets of other voltage levels with a standardized number of operating turns, thereby improving the practicality of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the switch cabinet handle.

[0017] Figure 2 It is a structural diagram of the switch cabinet handle.

[0018] Figure 3 This is an enlarged view of the local structure of the switch cabinet handle.

[0019] Figure 4 This is a schematic diagram of the exploded structure of the switch cabinet handle.

[0020] Figure 5 This is a schematic diagram of the switch cabinet handle in use.

[0021] In the figure: 1-crank body, 11-crank handle, 11-main body, 112-extension part, 113-connecting part, 114-notch, 12-center axis, 13-handle, 14-first threaded segment, 15-second threaded segment, 16-locking nut, 17-limiting nut, 2-counting device, 21-mounting frame, 211-mounting frame body, 212-mounting axis, 213-numerical display window, 22-counting mechanism, 23-counting gear set, 24-driving gear set, 241-first driving gear, 242-second driving gear, 25-first push rod, 26-first counting gear, 261-first circular seat, 262-first meshing tooth portion, 263-units digit counting group, 27-second counting gear, 271-second circular seat, 272-second meshing tooth portion, 273-tens digit counting group, 28-second push rod. DETAILED DESCRIPTION

[0022] The present invention is further described below through specific implementation methods.

[0023] like Figures 1 to 5 As shown, this embodiment provides a switch cabinet crank with a rotation counter, including a crank body 1 and a counting device 2.

[0024] The crank body 1 includes a crank handle 11 that can be connected to the switch cabinet, a central shaft 12 connected to the crank handle 11, and a handle 13 arranged on the periphery of the central shaft 12 and rotatable relative to the central shaft 12; specifically, the central shaft 12 includes a first threaded segment 14 and a second threaded segment 15 respectively arranged at the front and rear of the crank handle 11, the crank handle 11 is fixed and locked on the first threaded segment 14 by a locking nut 16, and a limiting nut 17 is provided on the second threaded segment 15 for preventing the handle 13 from being separated from the central shaft 12; the crank handle 11 is fixed to the central shaft 12 by the locking nut 16 12 is tightly connected to prevent the crank 11 from being separated from the central axis 12 during the rotation process; further, the crank 11 includes a main body 111 connected to the central axis 12 at the upper end, an extension part 112 vertically arranged at the lower end of the main body 111 and extending downward, and a connecting part 113 horizontally arranged at the end of the extension part 112 and extending outward, and a notch 114 for connecting with the switch cabinet is provided on the connecting part 113; through the notch 114, the crank body 1 can be applied to other voltage level switch cabinets with a standardized number of operating circles, thereby improving the practicality of the present utility model.

[0025] The counting device 2 is used to count the number of rotations of the crank body 1, and includes a mounting bracket 21 arranged on the central axis 12 and a counting mechanism 22 arranged on the mounting bracket 21 and cooperating with the handle 13; through the counting mechanism 22, the operator does not need to count the number of rotations while shaking the crank, which can effectively avoid the risk of improper operation and greatly improve the operation efficiency and reliability; specifically, the counting mechanism 22 includes a counting gear set 23 rotatably arranged on the central axis 12, a driving gear set 24 rotatably arranged on the mounting bracket 21 and meshing with the counting gear set 23, and a first push rod 25 arranged on the opposite surface of the handle 13 and the driving gear set 24 and capable of driving the driving gear set 24 to rotate; further, the counting gear set 23 includes a first counting gear 26 rotatably arranged on the central axis 12 for recording the number of rotations of the units digit and a second counting gear 27 for recording the tens digit, the first counting gear 26 is arranged on the side close to the handle 13, and the first counting gear 26 is relative to the second counting gear 2 A second push rod 28 is provided on one side of 7 for driving the driving gear set 24 to rotate; further, the driving gear set 24 includes a first driving gear 241 and a second driving gear 242 rotatably arranged on the mounting frame 21 at intervals, the upper end of the first driving gear 241 is meshed with the lower end portion of the first counting gear 26, and the upper end of the second driving gear 242 is meshed with the lower end portion of the second counting gear 27, the first push rod 25 can drive the first driving gear 241 to rotate, and the second push rod 28 can drive the second driving gear 242 to rotate; further, the mounting frame 21 includes a mounting frame body 211 arranged on the central axis 12 and located between the crank 11 and the handle 13, a mounting shaft 212 provided at the lower end of the mounting frame body 211 and extending toward the handle 13 for mounting the driving gear set 24, and a numerical display window 213 provided at the upper end of the mounting frame body 211 and extending toward the handle 13 and facing the counting gear set 23 above and below; the number of rotations of the crank body 1 can be displayed in real time through the numerical display window 213.

[0026] The first counting gear 26 includes a first circular seat body 261, a first meshing tooth portion 262 provided on one side of the first circular seat body 261 and capable of meshing with the first driving gear 241, and a units digit counting group 263 provided on the outer circumferential surface of the first circular seat body 261. The first push rod 25 is arranged opposite to the first meshing tooth portion 262 and can be located in the tooth gap of the first driving gear 241, thereby only driving the first driving gear 241 to rotate. The second counting gear 27 includes a second circular seat body 271, a second meshing tooth portion 272 provided on one side of the second circular seat body 271 and capable of meshing with the second driving gear 242, and a tens digit counting group 273 provided on the outer circumferential surface of the second circular seat body 271. The second push rod 28 is arranged opposite to the second meshing tooth portion 272 and can be located in the tooth gap of the second driving gear 242, thereby only driving the second driving gear 242 to rotate. Specifically, when in use, the operator first The crank body 1 is connected to the switch cabinet through the notch 114 on the crank handle 11. Then the operator holds the handle 13, fixes the handle 13, and drives the crank 11 and the central axis 12 to rotate relative to the switch cabinet. According to the relative movement, when the central axis 12 rotates one circle around the connection between the crank handle 11 and the switch cabinet, the handle 13 is fixed and rotates one circle around the central axis 12 as the central axis 12 rotates, so that the first push rod 25 on the handle 13 drives the first drive gear 241 to rotate. At the same time, the first drive gear 241 drives the first meshing tooth portion 262 to rotate, so that the unit digit counting group 263 displayed in the numerical display window 213 is increased by one. When the first counting gear 26 rotates one circle, the second push rod 28 drives the second drive gear 242 to rotate. At the same time, the second drive gear 242 drives the second meshing tooth portion 272 to rotate, so that the tens digit counting group 273 displayed in the numerical display window 213 is increased by one.

[0027] To sum up, with the help of the above-mentioned technical solution of the present invention, through the cooperation between the crank body 1 and the counting device 2 for counting the number of rotations of the crank body 1, and limiting the specific structure of the counting device 2, the operator does not need to count the number of rotations while shaking the crank body 1 during operation, which can effectively avoid the risk of improper operation and greatly improve the operation efficiency and reliability; in addition, by setting a slot 114 connected to the switch cabinet on the connecting part 113, the crank body 1 can be applied to other voltage level switch cabinets with standardized operating circles, thereby improving the practicality of the present invention.

[0028] The above description is merely a preferred embodiment of the present invention and therefore cannot be used to limit the scope of implementation of the present invention. In other words, equivalent changes and modifications made according to the scope of application of the present invention and the contents of the specification should still fall within the scope of the present invention.

Claims

1. A switch cabinet crank with a rotation counter, characterized by: It includes a crank body and a counting device; the crank body includes a crank handle that can be connected to the switch cabinet, a central axis connected to the crank handle, and a handle arranged on the periphery of the central axis and rotatable relative to the central axis; the counting device is used to count the number of rotations of the crank body, and includes a mounting frame arranged on the central axis and a counting mechanism arranged on the mounting frame that can cooperate with the handle.

2. The switch cabinet crank handle with a rotation counter according to claim 1, characterized in that: The counting mechanism includes a counting gear set rotatably arranged on the central axis, a driving gear set rotatably arranged on the mounting frame and meshing with the counting gear set, and a first push rod arranged on the opposite surface of the handle and the driving gear set to drive the driving gear set to rotate.

3. The switch cabinet crank handle with a rotation counter according to claim 2, characterized in that: The counting gear set includes a first counting gear that is rotatable and used to record the number of rotations of the units digit and a second counting gear that is used to record the tens digit, and is arranged at intervals on the central axis. The first counting gear is arranged on the side close to the handle, and a second push rod that can drive the driving gear set to rotate is provided on the side of the first counting gear opposite to the second counting gear.

4. The switch cabinet crank handle with a rotation counter according to claim 3, characterized in that: The driving gear group includes a first driving gear and a second driving gear that are rotatably arranged on a mounting frame at intervals. The upper end of the first driving gear is engaged with the lower end portion of the first counting gear, and the upper end of the second driving gear is engaged with the lower end portion of the second counting gear. The first push rod can drive the first driving gear to rotate, and the second push rod can drive the second driving gear to rotate.

5. The switch cabinet crank handle with a rotation counter according to claim 4, characterized in that: The first counting gear includes a first circular seat body, a first meshing tooth portion arranged on one side of the first circular seat body and capable of meshing with the first driving gear, and a units-digit counting digit group arranged on the outer peripheral surface of the first circular seat body. The first push rod is arranged opposite to the first meshing tooth portion and can be located in the tooth gap of the first driving gear, thereby only driving the first driving gear to rotate.

6. The switch cabinet crank handle with a rotation counter according to claim 4, characterized in that: The second counting gear includes a second circular seat body, a second meshing tooth portion arranged on one side of the second circular seat body and capable of meshing with the second drive gear, and a tens-digit counting digit group arranged on the outer peripheral surface of the second circular seat body. The second push rod is arranged opposite to the second meshing tooth portion and can be located in the tooth gap of the second drive gear, thereby only driving the second drive gear to rotate.

7. The switch cabinet crank handle with a rotation counter according to claim 2, characterized in that: The mounting frame includes a mounting frame body arranged on the central axis between the crank and the handle, a mounting shaft arranged at the lower end of the mounting frame body and extending toward the handle for mounting the driving gear set, and a numerical display window arranged at the upper end of the mounting frame body and extending toward the handle and opposite to the counting gear set above and below.

8. The switch cabinet crank handle with a rotation counter according to claim 1, characterized in that: The central axis includes a first threaded segment and a second threaded segment respectively arranged at the front and rear of the central axis. The crank is fixed and locked on the first threaded segment by a locking nut, and a limiting nut is provided on the second threaded segment to prevent the handle from separating from the central axis.

9. The switch cabinet crank handle with a rotation counter according to claim 1, characterized in that: The crank includes a main body portion connected to the central axis at the upper end, an extension portion vertically arranged at the lower end of the main body portion and extending downward, and a connecting portion horizontally arranged at the end of the extension portion and extending outward, and a notch connected to the switch cabinet is provided on the connecting portion.

Images