A bridge lock opening device
By introducing a screw structure with motor-driven gear meshing into the opening bridge locking device, convenient replacement and stable limiting of the locking rod are achieved, solving the problems of wear, deformation and shaking of the locking device in the prior art, and improving the locking effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA RAILWAY 11TH BUREAU GRP CORP LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-06-26
AI Technical Summary
Existing opening bridge locking devices are difficult to disassemble or replace when worn or deformed, and lack effective limiting during locking, resulting in shaking and errors that affect the locking effect.
A structure including a connecting rod, a locking rod, a plug, a lead screw, and a motor is designed. The motor drives the gear meshing to rotate the lead screw, enabling convenient replacement and limiting of the locking rod. The limit block and proximity sensor are used to monitor the movement position and prevent shaking.
It enables convenient replacement and stable limiting of the locking rod, improves the locking effect, reduces wear and error, and ensures the reliability of the locking device.
Smart Images
Figure CN224412295U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of opening bridge technology, specifically to an opening bridge locking device. Background Technology
[0002] A movable bridge is a bridge whose superstructure can be opened and closed in a manner such as vertical rotation, horizontal rotation, or lifting to facilitate navigation. When land transportation is not very busy, and there are ships navigating on the river, and fixed bridges cannot be built above the navigation clearance, movable bridges are needed to solve the problem of water and land transportation.
[0003] In the existing technology, conventional opening bridge locking devices cannot easily disassemble or replace worn or deformed locking rods during use. Furthermore, there is no limit to the movement of the locking rod on both sides during locking, which may cause it to wobble and produce errors, affecting the locking effect. Utility Model Content
[0004] The purpose of this invention is to provide an opening bridge locking device to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an opening bridge locking device, comprising a connecting rod and a locking rod, wherein a locking rod is provided at one end of the connecting rod, and a plug is provided at the middle position of the connecting rod near the locking rod end; a slot is provided in the locking rod corresponding to the plug, and the plug is inserted into the locking rod through the slot; a screw groove is provided at the end of the plug away from the connecting rod, and a screw is provided in the screw groove; both ends of the screw are threadedly connected to threaded blocks, and movable rods are provided on both sides of the threaded blocks; a locking frame is provided at the top of one end of the locking rod, and a lock is provided at the other end of the locking rod. The hook has a screw groove two located at the middle of the bottom end near the locking rod, and a screw rod two is installed in the screw groove two. Both ends of the screw rod two are threaded to threaded blocks two, and the bottom of each threaded block two is provided with a connecting block. The locking hook corresponding to each connecting block is provided with a movable through groove, and the other end of each connecting block is provided with a limiting block through the movable through groove. This allows the screw rod one to drive the movable rods on both sides of the threaded block one to move and insert into the connecting rod, which can facilitate easy assembly and replacement of the locking rod. When locking, the limiting block can limit the movement of the locking rod and the locking frame, preventing shaking and errors that could affect the locking effect.
[0006] Preferably, the locking rod has locking blocks at both the top and bottom near the connecting rod end, and the connecting rod corresponding to each locking block has a locking groove. The locking blocks in the grooves of the connecting rod engage with the locking blocks, and bolts are evenly threaded to the corresponding positions on the locking blocks and the connecting rod, so that the locking blocks at the top and bottom of the locking rod engage with the connecting rod. The locking blocks are then fixed to the connecting rod using bolts, making the connection more secure.
[0007] Preferably, the inner side of each limiting block is uniformly provided with sliding balls, and the middle position of each end of the limiting block is embedded with a proximity sensor, so that the sliding balls on the inner side of the limiting block are in contact with the locking rod and the locking frame and rotate. This can reduce wear during limiting and allow the proximity sensor to monitor the position of movement, which can prevent errors in the position of movement from affecting the locking effect.
[0008] Preferably, the insert block and locking rod corresponding to the moving rod are both provided with fixing grooves, and the moving rod and the threaded block are U-shaped, so that the lead screw drives the moving rods on both sides of the threaded block to move and insert into the fixing grooves, which facilitates fixing.
[0009] Preferably, a gear is provided at the middle position of the lead screw, and a gear groove is provided in the insert block on one side of the gear, and a motor groove is provided in the insert block at one end of the gear groove.
[0010] Preferably, the motor slot of the insert block is provided with a motor one, and the output end of the motor one extends through a bearing to a gear four in the gear slot, and the gear four meshes with the gear one.
[0011] Preferably, the middle section of the second lead screw is set as an optical axis section, and a second gear is provided on the optical axis section of the second lead screw, and a motor groove is provided in the corresponding locking hook above the second gear.
[0012] Preferably, the motor slot of the locking hook is provided with a second motor, and the output end of the second motor extends through a bearing to a third gear in the lead screw slot, and the third gear meshes with the second gear.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This opening bridge locking device, by inserting the connecting rod's insert block into the locking rod, can then start motor one to drive gear four on its shaft to rotate, causing gear four to drive gear one meshing with it to rotate, causing gear one to drive the threaded blocks at both ends of screw one to move, causing the threaded blocks to drive the moving rods on both sides to move and insert into the fixed groove. This allows the moving rods to support the insert block and the locking rod when connecting, resulting in a better connection effect and facilitating the replacement of the locking rod. Furthermore, during the moving locking, motor two can drive gear three on its shaft to rotate, causing gear three to drive gear two meshing with it to rotate, causing gear two to drive screw two to rotate, causing screw two to drive the threaded blocks at both ends to move in the opposite direction, causing the threaded blocks to drive the limiting block at the other end of the connecting block to move together. This can limit the movement of the locking rod and locking frame, preventing them from shaking and causing errors, thus improving the locking effect. Attached Figure Description
[0014] Figure 1 This is a side sectional view of the present invention.
[0015] Figure 2 This is a top sectional view of the connecting rod, locking rod, and lead screw of this utility model.
[0016] Figure 3 This is a top sectional view of the locking hook and lead screw of this utility model;
[0017] Figure 4 For the present utility model Figure 1 Enlarged structural diagram at point A in the middle;
[0018] Figure 5 For the present utility model Figure 2 Enlarged structural diagram at point B;
[0019] In the diagram: 1. Connecting rod; 2. Locking rod; 3. Locking hook; 4. Locking frame; 5. Screw groove one; 6. Moving rod; 7. Threaded block one; 8. Screw one; 9. Gear one; 10. Insert block; 11. Motor one; 12. Connecting block; 13. Screw groove two; 14. Threaded block two; 15. Gear two; 16. Screw two; 17. Proximity sensor; 18. Limit block; 19. Gear three; 20. Motor two; 21. Gear groove; 22. Gear four; 23. Locking block. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0021] Please see Figure 1-5 The present invention provides an embodiment of an opening bridge locking device, comprising a connecting rod 1 and a locking rod 2, wherein one end of the connecting rod 1 is provided with a locking rod 2, the top of one end of the locking rod 2 is provided with a locking frame 4, and the other end of the locking rod 2 is provided with a locking hook 3;
[0022] In use, the connecting rod 1 and the locking rod 2 can be assembled and connected. The other end of the connecting rod 1 is connected to the switch machine. Then, the locking frame 4 is installed on the top of one end of the locking rod 2, and the locking hook 3 is set on the locking frame 4. The switch machine drives the locking rod 2 to move by driving the connecting rod 1. During the movement of the locking rod 2, the locking hook 3 at one end will cooperate with the locking frame 4 to realize the locking function.
[0023] Furthermore, a plug block 10 is provided at the middle position of the connecting rod 1 near the locking rod 2. The locking rod 2 corresponding to the plug block 10 has a slot, and the plug block 10 is inserted into the locking rod 2 through the slot. The end of the plug block 10 away from the connecting rod 1 has a screw groove 5, and a screw 8 is provided in the screw groove 5. Both ends of the screw 8 are connected to threaded blocks 7 by threads, and both sides of the threaded blocks 7 have moving rods 6. The plug block 10 and the locking rod 2 corresponding to the moving rod 6 have fixed grooves, and the moving rods 6 and the threaded blocks 7 form a U-shape. A gear 9 is provided at the middle position of the screw 8, and a gear groove 21 is provided in the plug block 10 on one side of the gear 9. A motor groove is provided in the plug block 10 at one end of the gear groove 21. A motor 11 is provided in the motor groove of the plug block 10, and the output end of the motor 11 extends through a bearing to the gear groove 21 to provide a gear 22, and the gear 22 meshes with the gear 9.
[0024] In use, insert the plug 10 of the connecting rod 1 into the locking rod 2, and then start the motor 11 to drive the gear 22 on its shaft to rotate. The gear 22 drives the gear 9 that meshes with it to rotate. The gear 9 drives the lead screw 8 to rotate. The lead screw 8 drives the threaded blocks 7 at both ends to move. The threaded blocks 7 drive the moving rods 6 on both sides to move and insert into the fixed groove. The moving rods 6 can support the plug 10 and the locking rod 2 when they are connected, which can make the connection effect better and facilitate the replacement of the locking rod 2.
[0025] A screw groove 13 is provided at the middle of the bottom end of the locking hook 3 near the locking rod 2, and a screw 16 is provided in the screw groove 13. Both ends of the screw 16 are connected to threaded blocks 14 by threads, and the bottom of each threaded block 14 is provided with a connecting block 12. The corresponding locking hook 3 is provided with a moving through groove, and the other end of each connecting block 12 is provided with a limiting block 18 through the moving through groove. Sliding balls are evenly provided on the inner side of each limiting block 18, and a proximity sensor 17 is embedded in the middle of both ends of each limiting block 18. The middle section of the screw 16 is set as an optical axis section, and a gear 15 is provided on the optical axis section of the screw 16. A motor groove is provided in the locking hook 3 above the gear 15, and a motor 20 is provided in the motor groove of the locking hook 3. The output end of the motor 20 extends through a bearing to a gear 19 in the screw groove 13, and the gear 19 meshes with the gear 15.
[0026] In use, the motor 20 can be started to drive the gear 3 19 on its shaft to rotate, which in turn drives the gear 2 15 meshing with it to rotate, which in turn drives the lead screw 2 16 to rotate, which in turn drives the threaded blocks 2 14 at both ends to move in the opposite direction, which in turn drives the limiting block 18 at the other end of the connecting block 12 to move together. The proximity sensors 17 at both ends of the limiting block 18 can monitor its movement. When the locking rod 2 and the locking frame 4 move to the predetermined position, the proximity sensors 17 will send a signal and make the sliding ball inside the limiting block 18 fit against the locking rod 2 and the locking frame 4, which can limit their movement and prevent them from shaking and causing errors, thus making their locking effect better.
[0027] The locking rod 2 has a locking block 23 at the top and bottom of the end near the connecting rod 1, and the connecting rod 1 corresponding to the locking block 23 has a locking groove. The locking groove of the connecting rod 1 is engaged with the locking block 23, and the corresponding positions of the locking block 23 and the connecting rod 1 are evenly connected with bolts by threads.
[0028] In use, the locking block 23 at one end of the locking rod 2 can be engaged in the slot on the connecting rod 1. Then, multiple sets of bolts can be evenly screwed through the locking block 23 and the connecting rod 1 to connect the locking block 23 and the connecting rod 1, making the connection more secure.
[0029] In this embodiment, the insert block 10 of the connecting rod 1 is inserted into the locking rod 2. Then, the motor 11 is started to drive the gear 4 22 on its shaft to rotate, which in turn drives the gear 9 meshing with it to rotate. The gear 9 then drives the lead screw 8 to rotate, which in turn drives the threaded blocks 7 at both ends to move. The threaded blocks 7 then drive the moving rods 6 on both sides to move and insert into the fixing groove. This allows the moving rods 6 to support the connection between the insert block 10 and the locking rod 2, resulting in a better connection and facilitating the replacement of the locking rod 2. Then, the locking block 23 at one end of the locking rod 2 is engaged in the slot on the connecting rod 1. Multiple bolts can then be evenly screwed through the locking block 23 and the connecting rod 1 to connect the locking block 23 and the connecting rod 1, making the connection more secure. After the connection is complete, the motor 20 drives the gear 3 19 on its shaft to rotate, which in turn drives the gear 10 meshing with it to rotate. 5. Rotation causes gear 15 to drive lead screw 16 to rotate, which in turn causes lead screw 16 to drive threaded blocks 14 at both ends to move in the opposite direction. This causes threaded blocks 14 to drive the limiting block 18 at the other end of connecting block 12 to move together, allowing the limiting block 18 to limit the locking rod 2 and locking frame 4. When locking is required, the switch machine can drive the locking rod 2 to move through the drive connecting rod 1. During the movement of the locking rod 2, the locking hook 3 at one end will cooperate with the locking frame 4 to achieve the locking function. During locking, the proximity sensors 17 at both ends of the limiting block 18 can monitor its movement. When the locking rod 2 and locking frame 4 move to the predetermined position, the proximity sensors 17 will send a signal, which can be used by external personnel to monitor it in real time through the central processing system. The sliding ball inside the limiting block 18 will also be in contact with the locking rod 2 and locking frame 4 to limit their movement and prevent them from shaking and causing errors, thus improving the locking effect.
[0030] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.
[0031] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0032] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.
[0033] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. An opening bridge closure device, characterized by: The device includes a connecting rod (1) and a locking rod (2). One end of the connecting rod (1) is provided with a locking rod (2), and a plug (10) is provided at the middle position of the connecting rod (1) near the locking rod (2). The locking rod (2) corresponding to the plug (10) is provided with a slot, and the plug (10) is inserted into the locking rod (2) through the slot. The end of the plug (10) away from the connecting rod (1) is provided with a screw groove (5), and a screw (8) is provided in the screw groove (5). Both ends of the screw (8) are threadedly connected to threaded blocks (7), and both sides of the threaded blocks (7) are provided with moving rods (6). The locking rod (2) has a locking frame (4) at one end and a locking hook (3) at the other end. The locking hook (3) has a screw groove (13) at the middle of the bottom end near the locking rod (2). The screw groove (13) has a screw rod (16) inside. Both ends of the screw rod (16) are connected to a threaded block (14) by threads. The bottom of the threaded block (14) is provided with a connecting block (12). The locking hook (3) corresponding to the connecting block (12) is provided with a moving through groove. The other end of the connecting block (12) is provided with a limiting block (18) through the moving through groove.
2. The bridge locking device according to claim 1, characterized in that: The locking rod (2) is provided with a locking block (23) at the top and bottom of the end near the connecting rod (1), and the connecting rod (1) corresponding to the locking block (23) is provided with a slot. The slot of the connecting rod (1) is engaged with the locking block (23), and the corresponding positions on the locking block (23) and the connecting rod (1) are evenly connected with bolts by threads.
3. The bridge locking device according to claim 1, characterized in that: The inner side of each limiting block (18) is uniformly provided with sliding balls, and each of the two ends of the limiting block (18) is embedded with a proximity sensor (17).
4. The bridge locking device according to claim 1, characterized in that: The moving rod (6) is provided with a fixing groove in the corresponding insert (10) and locking rod (2), and the moving rod (6) and threaded block (7) are U-shaped.
5. The bridge locking device according to claim 1, characterized in that: A gear (9) is provided in the middle of the lead screw (8), and a gear groove (21) is provided in the insert (10) on one side of the gear (9), and a motor groove is provided in the insert (10) at one end of the gear groove (21).
6. The bridge locking device according to claim 1, characterized in that: The motor slot of the insert (10) is provided with a motor one (11), and the output end of the motor one (11) extends through a bearing to the gear slot (21) where a gear four (22) is provided, and the gear four (22) meshes with the gear one (9).
7. The bridge locking device according to claim 1, characterized in that: The middle section of the lead screw (16) is set as the optical axis section, and the optical axis section of the lead screw (16) is provided with gear (15), and the corresponding locking hook (3) above the gear (15) is provided with a motor slot.
8. The bridge locking device according to claim 1, characterized in that: The locking hook (3) has a motor 2 (20) in its motor slot, and the output end of the motor 2 (20) extends through a bearing to the lead screw slot 2 (13) which has a gear 3 (19) in it, and the gear 3 (19) meshes with the gear 2 (15).