Sluice bulkhead gate locking device

Abstract

The utility model provides a sluice bulkhead gate locking device which comprises a locking seat and a locking bolt, the locking seat comprises a locking frame, a locking shaft and a locking claw, the locking shaft is arranged on the locking frame, a shaft hole is formed in the locking claw, and the locking claw is rotationally connected to the locking shaft through the shaft hole; the locking bolt comprises a bolt seat, a connecting rotating rod and a locking rocker, the bolt seat and the locking frame are relatively fixed, a connecting hole is formed in the bolt seat, the connecting hole and the locking shaft are arranged in parallel, the connecting rotating rod is connected into the connecting hole, the first end of the locking rocker is fixedly connected to the connecting rotating rod, and the second end of the locking rocker is bent towards the side close to the locking claw; a locking hole is formed in the locking claw, and when the bent end of the locking rocker is inserted into the locking hole, the locking claw is locked; and when the bent end of the locking rocker is moved out of the locking hole, the locking claw is unlocked. By optimizing the locking structure, unlocking and locking operation can be easily completed only by a single person in the locking and unlocking process, and use is convenient.

Description

Technical Field

[0001] This utility model relates to the field of sluice gate engineering technology, specifically to a sluice gate maintenance gate locking device. Background Technology

[0002] When maintaining the working gate and its embedded parts in a spillway, water needs to be pumped out in a closed area formed by isolating the water flow upstream and downstream. Therefore, a maintenance gate is typically installed at the ends of the upstream and downstream gate piers of the working gate. The maintenance gate is usually a stacked beam gate. To facilitate maintenance and operation, the stacked beam gate is typically locked in sections at the top of the gate slot when not in operation, and the locking is released when the working gate or the embedded parts in the gate slot need maintenance.

[0003] In many existing domestic water conservancy and waterway projects, a relatively simple locking device is still commonly used. Specifically, it is formed by welding a handle to each end of an I-beam, and corresponding lugs are set at both ends of the gate. When it is necessary to lock the gate, the gate is lifted by a crane, and the operator lifts the locking device and places it under the lugs of the gate. At this time, the I-beam of the locking device spans across both sides of the gate slot, with two locking devices placed at each end of the gate. Then, the gate is slowly lowered so that the lugs at both ends of the gate overlap the corresponding locking devices, thus locking the gate. The advantage of this locking device made of I-beam is that the structure is relatively simple and easy to manufacture. However, for some medium and large gates, when using this I-beam structure, because thicker I-beams are required, the weight is heavier, the operation is more laborious, and at least two operators are required to work together. The locking operation is inconvenient, and the reliability of the locking is poor.

[0004] In summary, there is an urgent need for a gate locking device for sluice gate maintenance to solve or at least partially solve the problems existing in the prior art. Utility Model Content

[0005] The purpose of this utility model is to provide a locking device for the maintenance gate of a spillway, which aims to solve the problems of bulky and inconvenient operation of existing equipment. The specific technical solution is as follows:

[0006] A locking device for a sluice gate maintenance gate includes a locking seat and a locking bolt. The locking seat includes a locking frame, a locking shaft, and a locking pawl. The locking shaft is arranged on the locking frame, and the locking pawl has a shaft hole. The locking pawl is rotatably connected to the locking shaft through the shaft hole. The locking bolt includes a bolt seat, a connecting rod, and a locking rocker. The bolt seat is fixed relative to the locking frame and has a connecting hole. The connecting hole is arranged parallel to the locking shaft. The connecting rod is connected to the connecting hole. The first end of the locking rocker is vertically fixed to the connecting rod, and the second end of the locking rocker is bent towards the side closer to the locking pawl. The entire structure formed by the locking rocker and the connecting rod can rotate around the axis of the connecting rod and move along the axis of the connecting rod. The locking pawl has a locking hole. When the bent end of the locking rocker is inserted into the locking hole, the locking pawl is locked. When the bent end of the locking rocker is removed from the locking hole, the locking pawl is unlocked.

[0007] Furthermore, the bolt seat includes a fixing plate and two sleeves. The two sleeves are coaxially fixedly connected to the fixing plate and are arranged at intervals. The locking rocker is located within the interval between the two sleeves, and the holes in the two sleeves together form a connecting hole.

[0008] Furthermore, the locking bolt also includes a lever, which is fixedly connected to the end of the locking rocker near the connecting lever, and the lever extends upward.

[0009] Furthermore, the locking claw includes a locking section and a counterweight section, which are arranged at an obtuse angle. The shaft hole is located between the locking section and the counterweight section, and the locking hole is located on the locking section. The opening direction of the obtuse angle is towards the direction away from the locking bolt.

[0010] Furthermore, the axis of the shaft hole passes through the centroid of the locking pawl.

[0011] Furthermore, the locking frame includes a base plate and two side plates, both of which are fixedly connected to the base plate and are arranged in parallel. Each side plate has a mounting hole, which is coaxially arranged, and the locking shaft passes through both mounting holes.

[0012] Furthermore, the locking seat also includes a bushing, which is coaxially arranged in the shaft hole and located between the inner wall of the shaft hole and the outer wall of the locking shaft.

[0013] Preferably, the locking seat further includes a shaft end baffle and a first fastener. The first end of the locking shaft is provided with a limiting flange, and the side of the second end of the locking shaft is provided with a limiting groove. The limiting groove is arranged radially along the locking shaft. The shaft end baffle is fixedly connected to the side plate away from the limiting flange by the first fastener, and the shaft end baffle is partially embedded in the limiting groove.

[0014] Preferably, the locking seat further includes a shaft end baffle and a first fastener. Two limiting grooves are respectively arranged at both ends of the locking shaft. Both limiting grooves are arranged on the side of the locking shaft and are arranged radially along the locking shaft. Two shaft end baffles are provided. The two shaft end baffles are respectively fixedly connected to the two side plates by the first fastener, and the two shaft end baffles are respectively partially embedded in the two limiting grooves at both ends of the locking shaft.

[0015] Furthermore, the two shaft end baffles are respectively arranged on opposite sides of the two side plates.

[0016] The application of the technical solution of this utility model has the following beneficial effects:

[0017] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. These will be described below with reference to... Figures 1-6 The present invention will be described in further detail below. Attached Figure Description

[0018] 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:

[0019] Figure 1 This is one of the overall structural schematic diagrams of a water spillway gate maintenance gate locking device according to this utility model;

[0020] Figure 2 This is the second schematic diagram of the overall structure of a water spillway gate maintenance lock device of this utility model;

[0021] Figure 3 This is the third schematic diagram of the overall structure of a water spillway gate maintenance lock device of this utility model;

[0022] Figure 4 This is an exploded view of a sluice gate maintenance gate locking device according to the present invention;

[0023] Figure 5 This is a schematic diagram of the overall structure of a water spillway gate maintenance gate locking device installed in an installation groove according to this utility model;

[0024] Figure 6 This is a schematic diagram of the overall structure of a water spillway gate maintenance gate locking device installed in the mounting groove and locking the maintenance gate according to the present invention.

[0025] Among them, 1. Locking seat; 11. Locking frame; 111. Base plate; 112. Side plate; 1121. Mounting hole; 12. Locking shaft; 121. Limiting flange; 122. Limiting groove; 13. Locking claw; 131. Shaft hole; 132. Locking hole; 133. Locking section; 134. Counterweight section; 14. Shaft sleeve; 15. Shaft end baffle; 16. First fastener; 2. Locking bolt; 21. Bolt seat; 211. Connecting hole; 212. Fixing plate; 213. Sleeve; 22. Connecting rotating rod; 23. Locking rocker; 24. Operating lever; 3. Door groove; 4. Inspection door; 5. Mounting groove. Detailed Implementation

[0026] To facilitate understanding of this invention, a more comprehensive description is provided below, along with preferred embodiments. However, this invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this invention.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0028] Example:

[0029] See Figures 1-6This embodiment provides a locking device for a sluice gate maintenance gate, including a locking seat 1 and a locking bolt 2. The locking seat 1 includes a locking frame 11, a locking shaft 12, and a locking claw 13. The locking shaft 12 is arranged on the locking frame 11, and the locking claw 13 has a shaft hole 131, through which the locking claw 13 is rotatably connected to the locking shaft 12. The locking bolt 2 includes a bolt seat 21, a connecting rod 22, and a locking rocker 23. The bolt seat 21 is relatively fixed to the locking frame 11 (relatively fixed means that the bolt seat 21 and the locking frame 11 are respectively fixed to the door groove 3 of the maintenance gate 4, so that the bolt seat 21 and the locking frame 11 remain relatively stationary during use). In some other embodiments, the bolt seat 21 can also be fixedly connected to the locking seat 1, so that... The bolt seat 21 remains relatively stationary relative to the locking frame 11, and the bolt seat 21 is provided with a connecting hole 211, which is arranged parallel to the locking shaft 12. The connecting rod 22 is connected in the connecting hole 211. The first end of the locking rocker 23 is vertically fixed to the connecting rod 22, and the second end of the locking rocker 23 is bent toward the side close to the locking pawl 13. The whole formed by the locking rocker 23 and the connecting rod 22 can rotate around the axis of the connecting rod 22 or move along the axis of the connecting rod 22. The locking pawl 13 is provided with a locking hole 132. When the bent end of the locking rocker 23 is inserted into the locking hole 132, the locking pawl 13 is locked. When the bent end of the locking rocker 23 is removed from the locking hole 132, the locking pawl 13 is unlocked.

[0030] It should be noted that a gate slot 3 is provided at the maintenance gate of the spillway. The maintenance gate is slidably connected to the gate slot 3. There are two gate slots 3, which are located at the two ends of the maintenance gate. An installation groove 5 is provided at the upper end of each gate slot 3, away from the gate slot 3. The installation groove 5 is used to install the aforementioned locking device of the spillway maintenance gate. The installation groove 5 is provided with pre-embedded screws for installing the aforementioned locking device of the spillway maintenance gate. A lug is provided at the end of the maintenance gate near the gate slot 3.

[0031] Specifically, the locking frame 11 and the bolt seat 21 are both installed in the mounting groove 5 on the upper part of the gate groove 3 of the sluice gate maintenance gate; the locking claw 13 is rotatably connected to the locking shaft 12, and the locking claw 13 rotates into or out of the gate groove 3 when it rotates.

[0032] Understandably, in the initial state, the bent end of the locking lever 23 is located outside the locking hole 132, and the locking claw 13 is in the unlocked state. When it is necessary to lock the maintenance gate, the maintenance gate is first lifted upward by a crane so that the height of the lug on the maintenance gate exceeds the height of the locking claw 13. The locking claw 13 and the locking lever 23 are then manually rotated so that the bent end of the locking lever 23 is inserted into the locking hole 132 of the locking claw 13. At this time, the locking claw 13 extends into the lower part of the lug of the maintenance gate and is locked, preventing further rotation. The locking operation is then performed on the two spillway gates at both ends of the maintenance gate. After that, the maintenance gate is lowered, at which point the lug of the maintenance gate overlaps with the locking claw 13, and the maintenance gate is locked. Because during the locking process, simply rotating the locking claw 13 and inserting the bent end of the locking lever 23 into the locking hole 132 is sufficient to lock the locking claw 13; when unlocking is required, simply lift the maintenance gate with a crane and pull the bent end of the locking lever 23 out of the locking hole 132 to unlock the locking claw 13, at which point the maintenance gate can be smoothly lowered. The entire operation can be completed by a single operator, making it easy and convenient for locking and unlocking.

[0033] Furthermore, the bolt seat 21 includes a fixing plate 212 and a sleeve 213. Two sleeves 213 are provided and are coaxially fixedly connected to the fixing plate 212. The two sleeves 213 are arranged at intervals. The locking rocker 23 is located within the interval between the two sleeves 213. The holes in the two sleeves 213 together form a connecting hole 211.

[0034] Specifically, two sleeves 213 are fixedly connected to the fixed plate 212 by welding. The connecting rod 22 passes through the connecting hole 211, and the first end of the locking rocker 23 is vertically fixed to the connecting rod 22. The gap between the two sleeves 213 is larger than the diameter of the locking rocker 23, so that the whole formed by the connecting rod 22 and the locking rocker 23 can rotate around the connecting rod 22 and move axially along the connecting rod 22. When the locking rocker 23 moves axially along the connecting rod 22, the connecting rod 22 enters into or moves out of the locking hole 132. The whole structure formed by the connecting rod 22 and the locking rocker 23 is simple and lightweight, making it easy for operators to lock or unlock.

[0035] Furthermore, the locking bolt 2 also includes a lever 24, which is fixedly connected to the end of the locking rocker 23 near the connecting rod 22 by welding, and the lever 24 extends upward. Of course, in some other embodiments, it can also be detachably connected to the locking rocker 23 by screws. Alternatively, the lever 24 can be fixedly connected to the connecting rod 22, which also allows for rotation and movement of the locking rocker 23.

[0036] It is known that in the locked or unlocked state, the locking rocker arm is in a drooping position, requiring the operator to reach downwards to access it, which is inconvenient. However, by setting up the control lever 24, the locking rocker arm 23 extends upwards in both the locked and unlocked states. When the locking rocker arm 23 needs to be moved, the operator can directly rotate or move the control lever 24 to operate it, making it easier for the operator to perform unlocking or locking operations.

[0037] Furthermore, the locking pawl 13 includes a locking section 133 and a counterweight section 134, which are arranged at an obtuse angle. The shaft hole 131 is located between the locking section 133 and the counterweight section 134, and the locking hole 132 is located on the locking section 133. The opening direction of the obtuse angle is away from the locking bolt 2. Specifically, the axis of the shaft hole 131 passes through the center of mass of the locking pawl 13 (i.e., the axis passes through the center of weight of the locking pawl).

[0038] It is understood that by balancing the weight of the locking section 133 with the counterweight section 134, the operator can reduce the effort required to rotate the locking pawl 13. Furthermore, the axis of the shaft hole 131 passes through the center of mass of the locking pawl 13. This arrangement allows the locking pawl 13 to naturally stop at any rotational position during rotation, and during the rotation of the locking pawl 13, only the frictional force between the locking pawl 13 and the locking shaft 12 needs to be overcome to drive the locking pawl 13 to rotate, thus easily rotating the locking pawl 13 to the desired position.

[0039] Furthermore, the locking frame 11 includes a base plate 111 and two side plates 112. The two side plates 112 are fixedly connected to the base plate 111 by welding, and are arranged in parallel. Each side plate 112 has a mounting hole 1121, which is coaxially arranged. The locking shaft 12 passes through both mounting holes 1121. The locking frame 11 also includes reinforcing ribs, one end of which is welded to the side plate 112, and the other end is welded to the base plate 111. Multiple reinforcing ribs are arranged at intervals.

[0040] Specifically, bolt holes are provided on the base plate 111, and the locking bracket 11 is fixedly connected to the mounting groove 5 on the door groove 3 through the bolt holes on the base plate 111. The locking shaft 12 is supported by two side plates 112, and a gap is formed between the two side plates 112 to facilitate the rotation of the locking claw 13 within the gap. Both the side plates 112 and the base plate 111 are made of stainless steel to prevent rust during use.

[0041] Furthermore, the locking seat 1 also includes a bushing 14, which is coaxially arranged in the shaft hole 131 and located between the inner wall of the shaft hole 131 and the outer wall of the locking shaft 12.

[0042] The bushing 14 reduces friction between the locking shaft 12 and the locking pawl 13, facilitating rotation of the locking pawl 13. Furthermore, the bushing 14 is made of a wear-resistant material, such as tin bronze, aluminum bronze, or polytetrafluoroethylene, thereby increasing the service life of the locking device. In other embodiments, a molded self-lubricating bushing 14 can also be used. Such a bushing 14 is a standard part, reducing production costs, improving interchangeability, and lowering maintenance expenses.

[0043] In a preferred embodiment, the locking shaft 12 is fixed to the two side plates 112 by welding. That is, one end of the locking shaft 12 is inserted into the mounting hole 1121 of one side plate 112 and fixedly connected to the side plate 112 by welding. The other end of the locking shaft 12 is inserted into the mounting hole 1121 of the other side plate 112 and fixedly connected to the side plate 112 by welding. It can be seen that this fixing method can make the connection between the locking shaft 12 and the two side plates 112 more secure, and the locking shaft 12 can increase the connection strength at the upper end of the two side plates 112.

[0044] In a preferred embodiment, the locking seat 1 further includes a shaft end baffle 15 and a first fastener 16. The first end of the locking shaft 12 is provided with a limiting flange 121, and the side of the second end of the locking shaft 12 is provided with a limiting groove 122. The limiting groove 122 is arranged radially along the locking shaft 12. The shaft end baffle 15 is fixedly connected to the side plate 112 at the end away from the limiting flange 121 by the first fastener 16, and the shaft end baffle 15 is partially embedded in the limiting groove 122.

[0045] As can be seen, during installation, the locking shaft 12 passes sequentially through the side plate 112, the sleeve, and the side plate 112, with the limiting flange 121 abutting against the end face of one of the side plates 112. A limiting baffle is then embedded in the limiting groove 122, and the limiting baffle is fixedly connected to the end face of the side plate 112 by the first fastener 16. This achieves axial and circumferential positioning of the locking shaft 12, preventing it from moving along its own axis or rotating along its own axis. In this embodiment, the first fastener 16 is a screw; in some other embodiments, the first fastener 16 can also be a bolt or a rivet.

[0046] In another preferred embodiment, the locking seat 1 further includes a shaft end baffle 15 and a first fastener 16. Two limiting grooves 122 are respectively arranged at both ends of the locking shaft 12. Both limiting grooves 122 are arranged on the side of the locking shaft 12 and are arranged radially along the locking shaft 12. Two shaft end baffles 15 are provided. The two shaft end baffles 15 are respectively fixedly connected to the two side plates 112 by the first fastener 16, and the two shaft end baffles 15 are respectively partially embedded in the two limiting grooves 122 at both ends of the locking shaft 12.

[0047] It is understood that during installation, the locking shaft 12 is passed through the locking shaft 12 hole, so that the limiting grooves 122 at both ends of the locking shaft 12 are located on the outer sides of the two side plates 112 respectively. Two limiting plates are then inserted into their corresponding limiting grooves 122, and the two limiting plates are fixedly connected to the corresponding side plates 112 by the first fastener 16. The cooperation of the two limiting plates and the limiting grooves 122 limits the locking shaft 12 axially and circumferentially, preventing the locking shaft 12 from moving or rotating along its own axis. In this embodiment, the first fastener 16 is a screw; in some other embodiments, the first fastener 16 can also be a bolt or rivet. Two shaft end baffles 15 are respectively fixed on opposite sides (i.e., the sides furthest from each other) of the two side plates 112. This arrangement facilitates the removal of the screws and the installation of the shaft end baffles 15.

[0048] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A locking device for a maintenance gate of a spillway, characterized in that: Includes a locking seat (1) and a locking bolt (2), The locking seat (1) includes a locking frame (11), a locking shaft (12) and a locking claw (13). The locking shaft (12) is arranged on the locking frame (11), and the locking claw (13) is provided with a shaft hole (131). The locking claw (13) is rotatably connected to the locking shaft (12) through the shaft hole (131). The locking bolt (2) includes a bolt seat (21), a connecting rod (22), and a locking rocker (23). The bolt seat (21) is fixed relative to the locking frame (11), and the bolt seat (21) is provided with a connecting hole (211). The connecting hole (211) is arranged parallel to the locking shaft (12). The connecting rod (22) is connected in the connecting hole (211). The first end of the locking rocker (23) is vertically fixed to the connecting rod (22). The second end of the locking rocker (23) is bent toward the side close to the locking claw (13). The whole formed by the locking rocker (23) and the connecting rod (22) can rotate around the axis of the connecting rod (22) or move along the axis of the connecting rod (22). The locking claw (13) is provided with a locking hole (132). When the bent end of the locking rocker (23) is inserted into the locking hole (132), the locking claw (13) is locked; when the bent end of the locking rocker (23) is removed from the locking hole (132), the locking claw (13) is unlocked.

2. The water spillway gate maintenance lock device according to claim 1, characterized in that: The bolt seat (21) includes a fixing plate (212) and a sleeve (213). Two sleeves (213) are provided and are coaxially fixedly connected to the fixing plate (212). The two sleeves (213) are arranged at intervals. The locking rocker (23) is located within the interval between the two sleeves (213). The holes in the two sleeves (213) together form a connecting hole (211).

3. The water spillway gate maintenance lock device according to claim 1, characterized in that: The locking bolt (2) also includes a lever (24), which is fixedly connected to one end of the locking rocker (23) near the connecting rod (22) and extends upward.

4. A sluice gate maintenance gate locking device according to any one of claims 1-3, characterized in that: The locking claw (13) includes a locking section (133) and a counterweight section (134), the locking section (133) and the counterweight section (134) are arranged at an obtuse angle, and the shaft hole (131) is located between the locking section (133) and the counterweight section (134), the locking hole (132) is located on the locking section (133), and the opening direction of the obtuse angle is towards the direction away from the locking bolt (2).

5. A sluice gate maintenance gate locking device according to claim 4, characterized in that: The axis of the shaft hole (131) passes through the centroid of the locking claw (13).

6. A sluice gate maintenance gate locking device according to any one of claims 1-3, characterized in that: The locking frame (11) includes a base plate (111) and two side plates (112). The two side plates (112) are fixedly connected to the base plate (111) and are arranged in parallel. Each of the two side plates (112) has a mounting hole (1121) arranged in a coaxial manner. The locking shaft (12) passes through the two mounting holes (1121).

7. A sluice gate maintenance gate locking device according to any one of claims 1-3, characterized in that: The locking seat (1) also includes a bushing (14), which is coaxially arranged in the shaft hole (131) and is located between the inner wall of the shaft hole (131) and the outer wall of the locking shaft (12).

8. A sluice gate maintenance gate locking device according to claim 1, characterized in that: The locking seat (1) further includes a shaft end baffle (15) and a first fastener (16). The first end of the locking shaft (12) is provided with a limiting flange (121), and the side of the second end of the locking shaft (12) is provided with a limiting groove (122). The limiting groove (122) is arranged radially along the locking shaft (12). The shaft end baffle (15) is fixedly connected to the side plate (112) at the end away from the limiting flange (121) by the first fastener (16), and the shaft end baffle (15) is partially embedded in the limiting groove (122).

9. A sluice gate maintenance gate locking device according to claim 1, characterized in that: The locking seat (1) further includes a shaft end baffle (15) and a first fastener (16). Two limiting grooves (122) are respectively arranged at both ends of the locking shaft (12). Both limiting grooves (122) are arranged on the side of the locking shaft (12) and are arranged radially along the locking shaft (12). Two shaft end baffles (15) are provided. The two shaft end baffles (15) are fixedly connected to the two side plates (112) respectively by the first fastener (16), and the two shaft end baffles (15) are partially embedded in the two limiting grooves (122) at both ends of the locking shaft (12).

10. A sluice gate maintenance gate locking device according to claim 9, characterized in that: The two shaft end baffles (15) are respectively arranged on opposite sides of the two side plates (112).

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