Emergency electric wrench for switch machine
Patent Information
- Application Number
- CN202522460938.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-20
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-11-20
AI Technical Summary
Traditional manual turnout switching is time-consuming and labor-intensive, affecting operational efficiency and potentially threatening railway traffic safety in emergency situations.
The design incorporates an emergency electric wrench for turnout operation, featuring a motor-driven rod rotation, equipped with lighting and signal lights, and a foldable storage function for easy adjustment of equipment operation.
It improves the efficiency of turnout switching, saves manpower, provides lighting and signaling functions, simplifies the storage of components after turnout switching, and enhances the safety and convenience of railway operations.
Smart Images

Figure CN224927856U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of railway maintenance tools, specifically to an emergency electric wrench for turning and removing turnouts. Background Technology
[0002] A turnout switch is a device used to switch points, lock points, and indicate the position of the point rails. In emergency situations such as sudden power outages or malfunctions of railway turnout switch machines, manual emergency turnout switching operations are usually required.
[0003] Traditional methods of switching points mainly rely on hand cranks, requiring hundreds of cranking cycles for each switch change. This repetitive operation is not only time-consuming and labor-intensive but also easily leads to worker fatigue, affecting operational efficiency. Failure to complete the switch change within the stipulated time directly threatens railway traffic safety.
[0004] Therefore, we proposed an emergency electric wrench for switch retraction and relocation. Utility Model Content
[0005] The purpose of this utility model is to overcome the above-mentioned shortcomings and provide an emergency electric wrench for switch turning and retraction.
[0006] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: an emergency electric wrench for a turnout switching machine, comprising a housing, a drive rod disposed on the outer side of one end of the housing, and a connecting part fixed to the end of the drive rod away from the housing, including a drive mechanism, comprising a connecting groove I opened at the end of the drive rod away from the connecting part, a drive shaft movably disposed inside the connecting groove I for driving the drive rod to rotate, and a motor fixed inside the housing, wherein the end of the drive shaft away from the drive rod passes through the interior of the housing and is connected to the output end of the motor, and a lighting lamp for illumination is fixed on the top side of the housing, the output end of which is connected to the connecting part. Through the operation of the above components, the railway turnout switching machine can be driven to operate through the rotating connecting part, thereby performing turnout switching operations. Through the operation of the lighting lamp, white light can provide illumination, and red light can be used to signal trains on the railway. The drive rod and the connecting part can be folded and stored.
[0007] Furthermore, a transmission shaft is fixed on both sides of the drive shaft located inside the connecting groove, with its tail end rotatably connected to the inner wall of the connecting groove. A connecting block is fixed at the end of the drive shaft located inside the connecting groove and slides inside the connecting groove. A thread is provided on the outer side of the drive rod near the housing. A limiting sleeve is fitted on the outside of the drive rod, with its inner wall threaded to the thread and its inner wall abutting against the connecting block to limit the drive rod. Through the operation of the above components, the corresponding angle of the drive rod can be limited.
[0008] Furthermore, a rotating hole is provided at one end of the housing near the drive shaft, and the drive shaft rotates inside the rotating hole. The rotating hole prevents the housing from interfering with the rotation of the drive shaft.
[0009] Furthermore, a fixing block is fixed to the top side of the housing away from the drive shaft, and an operating handle is fixed to the side of the fixing block away from the drive rod. A battery is installed on the side of the housing away from the drive shaft. The operating handle is electrically connected to the motor inside the housing. The motor can be turned on and off by the button on the handle, driving the motor to run in forward and reverse directions. The battery can provide power to the motor.
[0010] Furthermore, a mounting plate is fixed to the top side of the housing away from the operating handle. A handle is provided on the side of the mounting plate away from the drive rod. A second thread is provided on the outer side of the handle. A grip sleeve for adjusting the overall length of the handle is threaded onto the outer wall of the handle away from the mounting plate. A second connecting groove is provided on the end of the handle near the mounting plate. A connecting shaft is slidably inserted inside the second connecting groove. A second transmission shaft is fixed on both sides of the connecting shaft inside the second connecting groove, with its tail end rotatably connected to the inner wall of the second connecting groove. An installation shaft that slides with the grip sleeve is fixed at the end of the connecting shaft outside the second connecting groove. A sliding groove is provided on the side of the mounting plate near the handle. A slider is slidably connected inside the sliding groove. A sliding block that slides in the groove opening is fixed between the slider and the installation shaft. A slot that slides with the tail end of the grip sleeve is provided on the side of the fixed block away from the operating handle. By gripping the grip sleeve, railway workers can easily lift the housing. Through the operation of the above components, the corresponding positions of the grip sleeve and the handle can be adjusted, and the grip sleeve and the handle can be folded and stored.
[0011] Furthermore, an inspection port is provided on the outside of the housing, and a closed plate bolted to the housing is provided on the outside of the inspection port. Through the inspection port, railway staff can conveniently inspect and maintain the components inside the housing.
[0012] Furthermore, a lead screw for driving the slider to make vertical displacement is threaded through the middle of the slider. One end of the lead screw is rotatably connected to the inner wall of the bottom of the slide groove, and the other end of the lead screw passes through to the outside of the mounting plate and is fixed with a lever block for turning the lead screw. By rotating the lever block, the lead screw is driven to rotate. Through the threaded engagement between the lead screw and the slider, the slider can be driven to make vertical displacement.
[0013] Furthermore, the length of the grip sleeve is greater than the length of the handle, and the top of the mounting plate is provided with an adapter hole. The lead screw rotates inside the adapter hole, and the handle can be stored by the grip sleeve, which is longer than the handle.
[0014] Compared with the prior art, the present invention has the following beneficial effects: This utility model can help railway workers drive railway turnout switch machines to perform turnout switching operations, saving manpower. It can provide lighting for railway workers or send signals to trains. The equipment can be adapted to the operational needs of railway workers. After the turnout switching operation is completed, the components can be easily folded and stored, making it convenient to use.
[0015] In summary, this utility model has a reasonable structure, which can help railway workers drive the railway turnout switch machine to carry out turnout switching operations, saving manpower. It can provide lighting for railway workers or send signals to trains. After the turnout switching operation is completed, the components can be easily folded and stored, making it convenient to use. Attached Figure Description
[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings: Figure 1 A schematic diagram of an emergency electric wrench for switch retraction; Figure 2 A schematic diagram of the slot in the emergency electric wrench for switch retraction; Figure 3 A schematic diagram of the motor in the emergency electric wrench for turning and removing railway switches; Figure 4 A schematic diagram of the drive rod in the emergency electric wrench for switch retraction; Figure 5 A cross-sectional view of the handle of the emergency electric wrench for switch retraction; Figure 6 for Figure 5 Enlarged structural diagram at point A in the middle.
[0017] In the diagram: 1. Housing; 2. Motor; 3. Drive shaft; 4. Drive rod; 5. Connecting part; 6. Connecting block; 7. Transmission shaft one; 8. Limiting sleeve; 9. Lighting lamp; 10. Fixing block; 11. Operating handle; 12. Mounting plate; 13. Handle; 14. Grip sleeve; 15. Slide groove; 16. Slider; 17. Mounting shaft; 18. Sliding block; 19. Linking shaft; 20. Connecting groove two; 21. Transmission shaft two; 22. Lead screw; 23. Actuating block; 24. Slot; 25. Battery. Detailed Implementation
[0018] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0019] Example 1: Combination Figure 1 and Figure 3 The emergency electric wrench for switch retraction in this embodiment includes a housing 1, a drive rod 4 disposed on the outer side of one end of the housing 1, and a connecting part 5 fixed to the end of the drive rod 4 away from the housing 1. It includes a drive mechanism, including a connecting groove 1 opened at the end of the drive rod 4 away from the connecting part 5, a drive shaft 3 movably disposed inside the connecting groove 1 for driving the drive rod 4 to rotate, and a motor 2 fixed inside the housing 1. The motor 2 can drive the drive shaft 3 to rotate in both forward and reverse directions. The end of the drive shaft 3 away from the drive rod 4 passes through the interior of the housing 1 and is connected to the output end of the motor 2. A lighting lamp 9 for lighting is fixed on the top side of the housing 1, with the output end connected to the connecting part 5. The lighting lamp 9 can provide both red and white light.
[0020] The implementation principle of the emergency electric wrench for the turnout switching machine in this embodiment is as follows: When the railway turnout switching machine malfunctions, the drive rod 4 and the connecting part 5 on the drive rod 4 can be inserted into the railway turnout switching machine. After the connecting part 5 on the drive rod 4 is sleeved outside the drive end of the railway turnout switching machine, the operation of the motor 2 drives the drive shaft 3 to rotate, which in turn drives the drive rod 4 to rotate, and drives the connecting part 5 to rotate. At this time, the rotating connecting part 5 can drive the railway turnout switching machine to operate, thereby performing turnout switching operations. When railway workers use the equipment, the operation of the lighting lamp 9 can provide illumination with white light and send signals to trains on the railway with red light. After the turnout switching operation is completed, the drive rod 4 and the connecting part 5 on the drive rod 4 are pulled out of the railway turnout switching machine, and the drive rod 4 is pushed, causing the drive rod 4 and the connecting part 5 to deflect. At this time, the drive rod 4 and the connecting part 5 can be folded and stored.
[0021] Example 2: Combination Figure 4This embodiment, based on embodiment 1, further improves upon the following: Drive shafts 7, with their tail ends rotatably connected to the inner wall of the connecting groove, are fixed on both sides of the drive shaft 3 located inside the connecting groove. A connecting block 6, sliding inside the connecting groove, is fixed to the end of the drive shaft 3 located inside the connecting groove. A thread is provided on the outer side of the drive rod 4 near the housing 1. A limiting sleeve 8, with its inner wall threadedly engaged with the thread and abutting against the connecting block 6, is fitted onto the outside of the drive rod 4 to limit its movement. When the device is needed, the drive rod 4 can be pushed, and the sliding engagement between the drive shaft 3 and the connecting groove... Through the sliding fit between the connecting block 6 and the connecting groove, and the rotational fit of the transmission shaft 7, the drive rod 4 is driven to deflect. When the drive rod 4 and the drive shaft 3 are on the same axis, the rotatable limiting sleeve 8 can be rotated. Through the threaded fit between the limiting sleeve 8 and the external thread of the drive rod 4, the limiting sleeve 8 is driven to move. When the inner wall of the limiting sleeve 8 abuts against the connecting block 6 inside the connecting groove, the drive shaft 3 and the drive rod 4 are connected together by the limiting sleeve 8. At this time, the operation of the motor 2 can drive the drive shaft 3 to rotate, drive the drive rod 4 to rotate, and drive the connecting part 5 to rotate.
[0022] After the turnout switching operation is completed, the limiting sleeve 8 can be rotated to move the limiting sleeve 8. When the limiting sleeve 8 is separated from the connecting block 6, the drive rod 4 is pushed. Through the sliding cooperation of the drive shaft 3 and the first connecting groove, through the sliding cooperation of the connecting block 6 and the first connecting groove, and through the rotational cooperation of the first transmission shaft 7, the drive rod 4 is driven to deflect. At this time, the drive rod 4 and the connecting part 5 can be folded and stored.
[0023] A rotating hole is provided at one end of the housing 1 near the drive shaft 3. The drive shaft 3 rotates inside the rotating hole. The rotating hole prevents the housing 1 from interfering with the rotation of the drive shaft 3.
[0024] A fixing block 10 is fixed on the top side of the housing 1 away from the drive shaft 3. An operating handle 11 is fixed on the side of the fixing block 10 away from the drive rod 4. A battery 25 is installed on the side of the housing 1 away from the drive shaft 3. The operating handle 11 is electrically connected to the motor 2 inside the housing 1. The motor 2 can be turned on and off by the button on the handle 11, which drives the motor 2 to run in forward and reverse directions. The battery 25 is detachable on the outside of the housing 1 and is electrically connected to the motor 2.
[0025] Example 3: Combination Figure 2 , Figure 5 and Figure 6This embodiment, based on embodiment 1, further improves upon the following: A mounting plate 12 is fixed to the top side of the housing 1 at the end away from the operating handle 11. A handle 13 is provided on the side of the mounting plate 12 away from the drive rod 4. A second thread is provided on the outer side of the handle 13. A grip sleeve 14 for adjusting the overall length of the handle 13 is threaded onto the outer wall of the end of the handle 13 away from the mounting plate 12. A second connecting groove 20 is provided at the end of the handle 13 near the mounting plate 12. A connecting shaft 19 is slidably inserted into the interior of the second connecting groove 20. A second transmission shaft 21, whose tail end is rotatably connected to the inner wall of the second connecting groove 20, is fixed on both sides of the connecting shaft 19 located inside the second connecting groove 20. The end of the connecting shaft 19 outside the slot 20 is fixed with a mounting shaft 17 that slides with the grip sleeve 14. A groove 15 is provided on the side of the mounting plate 12 near the handle 13. A slider 16 is slidably connected inside the groove 15. A sliding block 18 is fixed between the slider 16 and the mounting shaft 17, sliding within the groove of the groove 15. A slot 24 is provided on the side of the fixed block 10 away from the operating handle 11, sliding with the tail end of the grip sleeve 14. When the user needs to use the device, the grip sleeve 14 can be rotated. Through the threaded engagement between the grip sleeve 14 and the handle 13, the grip sleeve 14 can be moved outside the handle 13. When the displaced grip sleeve 14 is fitted onto the mounting shaft 17... When the outer surface of the housing 1 is in contact with the mounting plate 12, the railway worker can easily lift the housing 1 by holding the grip sleeve 14. This allows the railway worker to easily insert the drive rod 4 and the connecting part 5 on the drive rod 4 into the railway turnout switch machine. When the railway worker needs to adjust the corresponding position of the grip sleeve 14 during the use of the equipment, the vertical displacement of the slider 16 can drive the mounting shaft 17 to move vertically, drive the connecting shaft 19 to move vertically, and drive the handle 13 and the grip sleeve 14 to move vertically. At this time, the corresponding position of the grip sleeve 14 can be adjusted. After the turnout switching operation is completed, the grip sleeve 14 can be rotated. The threaded engagement with the handle 13 causes the grip sleeve 14 to move outside the handle 13. When the displaced grip sleeve 14 separates from the mounting shaft 17, the grip sleeve 14 can be pushed. Through the sliding engagement of the connecting shaft 19 and the connecting groove 20, and through the rotational engagement of the transmission shaft 21, the grip sleeve 14 and the handle 13 are deflected. When the grip sleeve 14 corresponds to the slot 24, the grip sleeve 14 is rotated. Through the threaded engagement of the grip sleeve 14 and the handle 13, the grip sleeve 14 is moved outside the handle 13. When the end of the grip sleeve 14 away from the handle 13 is inserted into the slot 24, the grip sleeve 14 is then stored above the housing 1.
[0026] An inspection port is provided on the outside of the housing 1. A sealing plate is bolted to the housing 1 on the outside of the inspection port. The sealing plate can be removed from the inspection port by using tools such as screwdrivers. Through the inspection port, railway staff can conveniently inspect and maintain the components inside the housing 1.
[0027] A lead screw 22 for vertical displacement of slider 16 is threaded through the middle of slider 16. One end of lead screw 22 is rotatably connected to the inner wall of the bottom of slide groove 15, and the other end of lead screw 22 extends to the outside of mounting plate 12 and is fixed with a toggle block 23 for rotating lead screw 22. By rotating toggle block 23, lead screw 22 is rotated. Through the threaded engagement between lead screw 22 and slider 16, slider 16 can be vertically displaced.
[0028] The length of the grip sleeve 14 is greater than the length of the handle 13. The top of the mounting plate 12 has an adapter hole. The lead screw 22 rotates inside the adapter hole. The handle 13 can be stored by using the grip sleeve 14, which is longer than the handle 13.
[0029] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.
Claims
1. An emergency electric wrench for switch retraction, comprising a housing (1), a drive rod (4) disposed on the outer side of one end of the housing (1), and a connecting part (5) fixed to the end of the drive rod (4) away from the housing (1), characterized in that: include: The drive mechanism includes a connecting groove 1 opened at the end of the drive rod (4) away from the connecting part (5), a drive shaft (3) movably disposed inside the connecting groove 1 for driving the drive rod (4) to rotate, and a motor (2) fixed inside the housing (1). The end of the drive shaft (3) away from the drive rod (4) passes through the interior of the housing (1) and is connected to the output end of the motor (2). The top side of the housing (1) is fixed with an output end and a connecting part (5) for a lighting lamp (9) used for lighting.
2. The emergency electric wrench for switch retraction as described in claim 1, characterized in that: The drive shaft (3) located inside the connecting groove is fixed with a transmission shaft (7) whose tail end is rotatably connected to the inner wall of the connecting groove. The drive shaft (3) located inside the connecting groove is fixed with a connecting block (6) that slides inside the connecting groove. The drive rod (4) has a thread on the outer side near the housing (1). The drive rod (4) is fitted with a limiting sleeve (8) whose inner wall is threaded with the thread and whose inner wall abuts against the connecting block (6) to limit the drive rod (4).
3. The emergency electric wrench for switch retraction as described in claim 1, characterized in that: The housing (1) has a rotating hole at one end near the drive shaft (3), and the drive shaft (3) rotates inside the rotating hole.
4. The emergency electric wrench for switch retraction as described in claim 1, characterized in that: A fixing block (10) is fixed on the top side of the housing (1) away from the drive shaft (3). An operating handle (11) is fixed on the side of the fixing block (10) away from the drive rod (4). A battery (25) is installed on the side of the housing (1) away from the drive shaft (3).
5. The emergency electric wrench for switch retraction as described in claim 4, characterized in that: A mounting plate (12) is fixed to the top side of the housing (1) away from the operating handle (11). A handle (13) is provided on the side of the mounting plate (12) away from the drive rod (4). A second thread is provided on the outer side of the handle (13). A grip sleeve (14) for adjusting the overall length of the handle (13) is threaded onto the outer wall of the handle (13) away from the mounting plate (12). A second connecting groove (20) is provided at the end of the handle (13) near the mounting plate (12). A connecting shaft (19) is slidably inserted into the second connecting groove (20). Tail ends are fixed on both sides of the connecting shaft (19) located inside the second connecting groove (20). A drive shaft 2 (21) is rotatably connected to the inner wall of the connecting groove 2 (20). The end of the connecting shaft (19) located outside the connecting groove 2 (20) is fixed with a mounting shaft (17) that slides with the grip sleeve (14). A sliding groove (15) is provided on the side of the mounting plate (12) near the handle (13). A slider (16) is slidably connected inside the sliding groove (15). A sliding block (18) that slides in the groove of the sliding groove (15) is fixed between the slider (16) and the mounting shaft (17). A slot (24) that slides with the tail end of the grip sleeve (14) is provided on the side of the fixed block (10) away from the operating handle (11).
6. The emergency electric wrench for switch retraction as described in claim 1, characterized in that: The outer side of the housing (1) is provided with an inspection port, and the outer side of the inspection port is provided with a sealing plate that is bolted to the housing (1).
7. The emergency electric wrench for switch retraction as described in claim 5, characterized in that: The middle part of the slider (16) is threaded with a lead screw (22) for driving the slider (16) to make vertical displacement. One end of the lead screw (22) is rotatably connected to the inner wall of the bottom of the slide groove (15), and the other end of the lead screw (22) passes through the outside of the mounting plate (12) and is fixed with a toggle block (23) for turning the lead screw (22) to rotate.
8. The emergency electric wrench for switch retraction as described in claim 7, characterized in that: The length of the grip sleeve (14) is greater than the length of the handle (13), and the top of the mounting plate (12) is provided with an adapter hole, and the lead screw (22) rotates inside the adapter hole.
