A ship lock water conveying corridor valve hydraulic hoist connecting rod

Abstract

This utility model provides a hydraulic opening and closing mechanism connecting rod for a water conveyance channel valve in a ship lock, comprising a rod body and a pin. Both ends of the rod body are provided with connecting lifting holes, and the inner wall of the connecting lifting holes is provided with a first arc surface and a second arc surface. The first arc surface is a circular arc surface and is located on the side near the end of the rod body; the second arc surface is located on the side opposite to the first arc surface. The diameter of the inscribed circle of the connecting lifting hole is larger than the diameter of the circle of the first arc surface. The pin is inserted and fixed in the connecting lifting hole at one end of the rod body, and the diameter of the pin is equal to the diameter of the first arc surface. This application improves the connecting rod so that when the upper and lower connecting rods are installed together, the two connecting lifting holes do not need to be precisely aligned before inserting the pin into the connecting lifting holes of the two connecting rods, greatly shortening the installation time and improving the convenience of installation.

Description

Technical Field

[0001] This utility model relates to the field of lock opening and closing mechanism technology, specifically to a hydraulic opening and closing mechanism connecting rod for a lock water conveyance corridor valve. Background Technology

[0002] The lock gate hoist linkage is a crucial component of the lock gate hoist system, primarily used for transmitting power and controlling the movement of the gates. In existing lock gate hoist systems, the ease of disassembly and assembly of the hoist linkage, as a key transmission component, directly impacts equipment maintenance efficiency and operating costs.

[0003] Currently, most gate hoist connecting rods use a cylindrical pin and cylindrical pin hole fastening connection structure. Disassembly and assembly are not only time-consuming and labor-intensive, but also extremely difficult to perform in confined maintenance spaces. Especially during connecting rod assembly, because the pin holes of the upper and lower connecting rods have the same diameter as the cylindrical pin, the pin holes on the two connecting rods need to be aligned when inserting the cylindrical pin. One operator holds the lower connecting rod while another operates the top hydraulic cylinder, causing the hydraulic cylinder to move the upper connecting rod downwards until the pin holes on the two connecting rods are completely aligned. Then, the pin is inserted into the pin hole for connection. Achieving complete alignment of the pin holes on the two connecting rods requires fine-tuning, which severely tests the operator's skills and is time-consuming, affecting construction efficiency. In addition, most existing valve hydraulic gate openers use rigid connections for the connecting rods. For example, two circular tubular connecting rods are connected by bolts. When the valve is subjected to water flow impact and vibration, this type of rigid connecting rod structure will vibrate with the gate, which can easily lead to structural fatigue and damage to the connecting rod. This not only seriously affects the service life of the connecting rod, but also easily causes safety accidents.

[0004] In summary, there is an urgent need for a hydraulic gate opening and closing mechanism linkage for lock water conveyance corridor valves 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 hydraulic opening and closing mechanism connecting rod for valves in a ship lock water conveyance corridor, aiming to solve the problem that the pin holes on the upper and lower connecting rods are not easily aligned during the installation process of existing connecting rods, which seriously affects the efficiency of connecting rod disassembly and assembly. The specific technical solution is as follows:

[0006] A hydraulic valve opening and closing mechanism connecting rod for a ship lock water conveyance corridor includes a rod body and a pin. Both ends of the rod body are provided with connecting lifting holes. The inner wall of the connecting lifting hole is provided with a first arc surface and a second arc surface. The first arc surface is a circular arc surface and is arranged on the side near the end of the rod body. The second arc surface is arranged on the side opposite to the first arc surface. The diameter of the inscribed circle of the connecting lifting hole is larger than the diameter of the circle of the first arc surface. The pin is inserted and fixed in the connecting lifting hole at one end of the rod body.

[0007] Furthermore, the rod body includes a web and two flanges, which are arranged opposite to each other. The web is arranged between the two flanges, and the two sides of the web are welded and fixed to the two flanges respectively. The connecting lifting holes are arranged on the two flanges.

[0008] Furthermore, it also includes web stiffening plates, which are welded and fixedly connected to the web, and the two ends of the web stiffening plates are welded and fixed to the flanges on both sides of the web, respectively; multiple web stiffening plates are arranged, and multiple web stiffening plates are arranged at intervals along the length of the rod.

[0009] Furthermore, one end of the rod is arranged as a wide-mouth end, and the other end of the rod is arranged as a narrow-mouth end. The wide-mouth end is provided with a mounting groove, which is located between the two flanges. The width of the mounting groove is greater than the width of the rod at the narrow-mouth end.

[0010] Furthermore, the pole also includes a support frame base plate, with two support frame base plates arranged. The two support frame base plates are welded and fixed to the outer sides of the two flanges respectively, and both support frame base plates are arranged on the wide end of the pole.

[0011] Furthermore, the rod also includes support frame ribs, the first end of which is welded and fixed to the flange, and the second end of which is welded and fixed to the support frame base plate; each support frame base plate is provided with multiple support frame ribs.

[0012] Furthermore, the rod also includes a first lifting hole stiffening plate and a second lifting hole stiffening plate. Two first lifting hole stiffening plates are provided, both of which are arranged at the wide end of the rod and are welded and fixed to the side of the two flanges away from the web plate, respectively. Two second lifting hole stiffening plates are provided, both of which are arranged at the narrow end of the rod and are welded and fixed to the side of the two flanges away from the web plate, respectively.

[0013] Furthermore, the hydraulic opening and closing mechanism connecting rod of the lock water conveyance corridor valve also includes a shaft end baffle and fasteners. One end of the pin is provided with a limiting groove, and the shaft end baffle is fixedly connected to the wide end of the rod body by fasteners. The shaft end baffle is embedded in the limiting groove.

[0014] On the other hand, a hydraulic gate opening and closing mechanism connecting rod for a water conveyance channel valve of a lock is also provided, including a rod body, both ends of which are provided with connecting lifting holes, and the inner wall of the connecting lifting holes is provided with a first arc surface and a second arc surface; the first arc surface is a circular arc surface and is arranged on the side near the end of the rod body; the second arc surface is arranged on the side opposite to the first arc surface; the diameter of the inscribed circle of the connecting lifting hole is larger than the diameter of the circle of the first arc surface.

[0015] The application of the technical solution of this utility model has the following beneficial effects:

[0016] With the above design, the connecting holes are actually elongated holes arranged along the length of the main body. During connection, the connecting holes of the upper and lower connecting rods do not need to be precisely aligned. It is sufficient that the connecting holes on the two connecting rods intersect, and the diameter of the intersecting hole is larger than the diameter of the pin hole, so that the pin can be easily inserted into the two connecting holes. This greatly shortens the installation time and improves the convenience of installation. At the same time, under the action of gravity, the pin is engaged in the first arc surface of the connecting hole at the lower end of the upper connecting rod, and fits tightly with the first arc surface. Under the action of gravity, the first arc surface in the connecting hole at the upper end of the lower connecting rod engages with the pin, so that the pin fits tightly with the first arc surface on the lower connecting rod. Thus, under the action of gravity, it automatically locks and achieves a tight connection between the two connecting rods. When disassembling the connecting rods and inspecting the valve, the connecting rods and valves below the section to be disassembled are locked. The connecting rods to be disassembled automatically unlock and loosen from the connecting holes under the action of gravity, which can be easily disassembled. Thus, the connecting rods can be removed in sequence and the valves can be lifted to complete the inspection.

[0017] It is important to note that because the inscribed circle diameter of the connecting hole is larger than the diameter of the pin, when the valve connected to the bottom of the connecting rod vibrates, the two adjacent connecting rods can move relative to each other, preventing the valve's vibration from being transmitted to the lifting cylinder at the top of the connecting rod, thus achieving vibration isolation. In addition, the valve vibrates due to water flow impact during operation, causing the connecting rod to vibrate in the vertical direction (horizontal vibration). The connecting rods are hinged together by the pin, which effectively eliminates the vibration caused by water flow impact, thereby improving the safety and durability of the connecting rod system.

[0018] 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 1-7 The present invention will be described in further detail below. Attached Figure Description

[0019] 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:

[0020] Figure 1 This is a three-dimensional view of the overall structure of the hydraulic opening and closing mechanism connecting rod of a lock water conveyance corridor valve according to Embodiment 1 of this utility model;

[0021] Figure 2 This is a side view of the overall structure of the hydraulic opening and closing mechanism connecting rod of a lock water conveyance corridor valve according to Embodiment 1 of this utility model;

[0022] Figure 3 This is a schematic diagram of the internal structure of the hydraulic opening and closing mechanism connecting rod of a lock water conveyance corridor valve according to Embodiment 1 of this utility model;

[0023] Figure 4 yes Figure 2 Enlarged view of point A in the middle;

[0024] Figure 5 This is an enlarged view of the support frame base plate and support frame rib plate in Embodiment 1 of the hydraulic opening and closing mechanism connecting rod of the valve of the water conveyance corridor of the lock of this utility model;

[0025] Figure 6 This is a schematic diagram of the connection between two connecting rods of a hydraulic valve opening and closing mechanism for a water conveyance corridor in a ship lock, according to this utility model.

[0026] Figure 7 This is a schematic diagram of the structure of a hydraulic opening and closing mechanism connecting rod for a water conveyance channel valve in a lock, as described in Embodiment 1 of this utility model.

[0027] The components include: 1. Rod body; 11. Connecting lifting hole; 111. First arc surface; 112. Second arc surface; 12. Web plate; 13. Flange; 14. Web plate stiffening plate; 15. Mounting groove; 16. Support frame base plate; 17. Support frame rib plate; 171. Clearance chamfer; 18. First lifting hole stiffening plate; 19. Second lifting hole stiffening plate; 2. Pin shaft; 21. Limiting groove; 3. Shaft end baffle; 4. Fastener; 5. Lifting cylinder; 6. Valve. Detailed Implementation

[0028] 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.

[0029] 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.

[0030] Example 1:

[0031] See Figures 1-7This embodiment provides a hydraulic opening and closing mechanism connecting rod for a water conveyance channel valve in a lock, including a rod body 1 and a pin 2. Both ends of the rod body 1 are provided with connecting lifting holes 11. The inner wall of the connecting lifting hole 11 is provided with a first arc surface 111 and a second arc surface 112. The first arc surface 111 is a circular arc surface and is arranged on the side near the end of the rod body 1. The second arc surface 112 is arranged on the side opposite to the first arc surface 111. The diameter of the inscribed circle of the connecting lifting hole 11 is larger than the diameter of the circle of the first arc surface 111. The pin 2 is inserted and fixed in the connecting lifting hole 11 at one end of the rod body 1, and the diameter of the pin 2 is equal to the diameter of the first arc surface 111.

[0032] It should be noted that the hydraulic gate opener / closer for the valves in the water conveyance channel of the lock typically includes a lifting cylinder 5 mounted on the gate opener / closer frame. A valve 6 is mounted on the drive end of the lifting cylinder 5 via a connecting rod. The lifting cylinder 5 pulls the connecting rod up and down, causing the valve 6 to move up and down, thus opening and closing the water conveyance channel. Because the distance between the hydraulic gate opener / closer frame and the valve 6 is relatively far, and because the working stroke of the lifting cylinder 5 is limited, multiple connecting rods are often required. These connecting rods are connected end-to-end in sequence, with the top connecting rod connected to the drive end of the lifting cylinder 5 and the bottom connecting rod connected to the top of the valve 6. This allows the lifting cylinder 5 to lift the connecting rods upwards, enabling them to be removed one by one. It is important to note that the length of a single connecting rod should not exceed the stroke of the lifting cylinder 5. If the connecting rod is too long, the lifting cylinder 5 will be unable to lift the connecting rod from the valve 6 well, making disassembly and maintenance of the connecting rod and valve 6 inconvenient.

[0033] It can be seen that with this setting, when installing the connecting rod, the connecting lifting hole 11 on the upper connecting rod is basically aligned with the connecting lifting hole 11 on the lower connecting rod. Then, the pin 2 is inserted. Because the diameter of the pin 2 is smaller than the diameter of the inscribed circle of the connecting lifting hole 11, even if there is a slight misalignment between the connecting lifting holes 11 on the two connecting rods, the pin 2 can still be easily inserted into the connecting lifting hole 11 for installation. When the pin 2 has completely penetrated the connecting lifting hole 11 on the two connecting rod bodies 1, the lifting cylinder 5 lifts the upper connecting rod upward. At this time, the pin 2 is inserted into the first arc surface 111 of the connecting lifting hole 11 of the upper connecting rod. As the lifting cylinder 5 continues to move, the pin 2 is inserted into the first arc surface 111 of the lower connecting rod, completing the installation of the lower connecting rod. With the above design, the connecting hole 11 is actually an elongated hole arranged along the length of the main body. During connection, the connecting holes 11 of the upper and lower connecting rods do not need to be precisely aligned. It is only necessary for the connecting holes 11 on the two connecting rods to intersect, and the diameter of the intersecting hole is larger than the diameter of the pin 2 hole, so that the pin 2 can be easily inserted into the two connecting holes 11. This greatly shortens the installation time and improves the convenience of installation. At the same time, during use, under the action of gravity, the pin 2 is engaged in the first arc surface 111 of the connecting hole 11 at the lower end of the upper connecting rod, and is tightly fitted with the first arc surface 111. Under the action of gravity, the first arc surface 111 in the connecting hole 11 at the upper end of the lower connecting rod engages with the pin 2, so that the pin 2 is tightly fitted with the first arc surface 111 on the lower connecting rod, thereby achieving a tight connection between the two connecting rods under the action of gravity. It should be noted that because the inscribed circle diameter of the connecting hole 11 is larger than the diameter of the pin 2, when the valve 6 connected to the bottom of the connecting rod vibrates, the two adjacent connecting rods can move relative to each other, and the vibration of the valve 6 will not be transmitted to the lifting cylinder 5 at the top of the connecting rod, thus achieving the effect of vibration isolation.

[0034] It is worth noting that in this embodiment, both the first arc surface 111 and the second arc surface 112 are circular arc surfaces. The diameter of the first arc surface 111 is R1, and the diameter of the second arc surface 112 is R2, where R1 is smaller than R2. The center of the first arc surface 111 and the center of the second arc surface 112 can completely coincide, or they can be staggered along the length of the rod 1. When the center of the first arc surface 111 and the center of the second arc surface 112 are staggered, the distance between the centers of the first arc surface 111 and the second arc surface 112 is d, where d is greater than or equal to zero. The first arc surface 111 and the second arc surface 112 are connected by an inclined plane so that when the two connecting rods are joined, the pin 2 can smoothly slide into the first arc surface 111 along the inclined plane and engage with it.

[0035] Furthermore, the rod body 1 includes a web 12 and two flanges 13, which are arranged opposite to each other. The web 12 is arranged between the two flanges 13, and both sides of the web 12 are welded and fixed to the two flanges 13 respectively. The connecting lifting holes 11 are arranged on the two flanges 13. Both the web 12 and the flanges 13 are welded from steel plates.

[0036] Furthermore, it also includes stiffening plates for the web plate 12, which are welded and fixedly connected to the web plate 12, and both ends of the stiffening plates are welded and fixed to the flanges 13 on both sides of the web plate 12, respectively. Multiple stiffening plates for the web plate 12 are arranged at intervals along the length of the rod 1. The arrangement of the stiffening plates for the web plate 12 improves the connection strength between the web plate 12 and the flanges 13, increases the overall rigidity of the rod 1, and makes the rod 1 less prone to deformation during use. Stiffening plates for the web plate 12 are welded to both sides of the web plate 12.

[0037] Furthermore, one end of the rod 1 is arranged as a wide-mouth end, and the other end of the rod 1 is arranged as a narrow-mouth end. The wide-mouth end is provided with a mounting groove 15, which is located between the two flanges 13. The width of the mounting groove 15 is greater than the width of the narrow-mouth end of the rod 1.

[0038] As can be seen from the above structural design, when the connecting rods need to be connected end to end, the lower end of the upper connecting rod is inserted into the mounting groove 15 at the upper end of the lower connecting rod, and the connecting lifting hole 11 at the lower end of the upper connecting rod is basically aligned with the connecting lifting hole 11 at the upper end of the lower connecting rod. A pin 2 is then used to pass through the aligned connecting lifting holes 11 for connection. With this arrangement, the lower end of the upper connecting rod is completely within the mounting groove 15 of the lower connecting rod. This facilitates installation, and also ensures that the centers of both the upper and lower connecting rods are on the vertical axis. When suspending the valve 6 through the connecting rods, no torque is generated, thus reducing the likelihood of the valve 6 suspended on the connecting rods deflecting.

[0039] Furthermore, the rod body 1 also includes a support frame base plate 16. Two support frame base plates 16 are arranged, and the two support frame base plates 16 are welded and fixed to the outer sides of the two flanges 13 respectively. Both support frame base plates 16 are arranged on the wide end of the rod body 1.

[0040] It should be noted that hydraulic gate hoists generally have multiple connecting rods. When valve 6 needs to be inspected, the lifting cylinder 5 is used to pull valve 6 upwards via the connecting rods. Because the stroke of the lifting cylinder 5 is limited, when disassembling valve 6, the connecting rods at the bottom of the valve well must be removed one by one. The specific working process is as follows: the lifting cylinder 5 pulls the connecting rods and valve 6 upwards. When one section of the connecting rod is fully extended out of the valve well, and the support frame base plate 16 of the next section of the connecting rod extends out of the valve well, an I-beam is used to support the well opening, and the lifting cylinder 5 is moved downwards, so that the support frame base plate 16 of the next section of the connecting rod is supported on the I-beam. At this time, the connecting rods extending out of the valve well can be easily removed. After removing one section of the connecting rod, the lifting cylinder 5 is connected to the connecting rod supported at the well opening of the valve well, and the connecting rods and valve 6 are lifted again. This process is repeated until all connecting rods and valve 6 are removed from the valve well.

[0041] It is known that by setting the support frame base plate 16, when the upper connecting rod is removed, the lower connecting rod can be easily supported at the wellhead of the valve well, which facilitates the disassembly of the upper connecting rod.

[0042] Furthermore, the rod body 1 also includes a support frame rib 17, the first end of which is welded and fixed to the flange 13, and the second end of which is welded and fixed to the support frame base plate 16; each support frame base plate 16 is provided with multiple support frame ribs 17. Specifically, the support frame base plate 16 is horizontally welded and fixed to the side of the flange 13.

[0043] It is understood that the arrangement of the support frame ribs 17 improves the connection strength between the support frame base plate 16 and the flange 13, prevents destructive deformation of the support frame base plate 16 during use, and enhances the support frame base plate 16's resistance to deformation. It also improves the overall rigidity of the rod 1.

[0044] Furthermore, a clearance chamfer 171 is provided on the support frame rib plate 17, and the clearance chamfer 171 is arranged at the joint between the support frame bottom plate 16 and the flange 13.

[0045] It is known that during welding, the support frame rib 17 is prone to interference at the connection between the support frame rib 17 and the support frame base plate 16 and flange 13. However, by setting the chamfer 171, when welding the support frame rib 17, the chamfer creates a clearance, which facilitates the welding of the support frame base plate 16.

[0046] Furthermore, the rod body 1 also includes a first lifting hole stiffening plate 18 and a second lifting hole stiffening plate 19. Two first lifting hole stiffening plates 18 are provided, and both first lifting hole stiffening plates 18 are arranged at the wide end of the rod body 1, and the two first lifting hole stiffening plates 18 are respectively welded and fixed to the side of the two flanges 13 away from the web plate 12. Two second lifting hole stiffening plates 19 are provided, and both second lifting hole stiffening plates 19 are arranged at the narrow end of the rod body 1, and the two second lifting hole stiffening plates 19 are respectively welded and fixed to the side of the two flanges 13 away from the web plate 12.

[0047] It can be seen that by setting the first lifting hole stiffening plate 18 and the second lifting hole stiffening plate 19, the rigidity of the flange 13 at the connecting lifting hole 11 is improved, and the ability of the rod 1 to resist deformation is improved; at the same time, the contact area between the connecting lifting hole 11 and the pin 2 is increased, the pressure between the first arc surface 111 and the pin 2 in the connecting lifting hole 11 is reduced, the wear of the first arc surface 111 is reduced, and the service life of the rod 1 and the pin 2 is improved.

[0048] Furthermore, the hydraulic opening and closing mechanism connecting rod of the lock water conveyance corridor valve also includes a shaft end baffle 3 and a fastener 4. One end of the pin 2 is provided with a limiting groove 21, and the shaft end baffle 3 is fixedly connected to the wide end of the rod body 1 by the fastener 4. The shaft end baffle 3 is embedded in the limiting groove 21. Specifically, the fastener 4 is a screw. When the rod body 1 is provided with a first lifting hole stiffening plate 18, the first lifting hole stiffening plate 18 is provided with a screw hole, and the shaft end baffle 3 is fixedly connected to the first lifting hole stiffening plate 18 by a screw. When the rod body 1 is not provided with a first lifting hole stiffening plate 18, the flange 13 is provided with a screw hole, and the shaft end baffle 3 is fixedly connected to the flange 13 by a screw.

[0049] It is known that the pin 2 is axially limited by the shaft end baffle 3 to prevent the pin 2 from coming out of the connecting lifting hole 11 during use and causing danger.

[0050] The working principle and operation process of this utility model are as follows:

[0051] When it is necessary to connect and install two connecting rods, first insert the narrow end of the upper connecting rod into the mounting groove 15 at the upper wide end of the lower connecting rod, so that the connecting lifting hole 11 at the lower end of the upper connecting rod is initially aligned with the connecting lifting hole 11 at the upper end of the lower connecting rod, and the diameter of the cross hole of the two connecting lifting holes 11 is larger than the diameter of the pin 2. Then insert the pin 2 into the cross hole. Because the diameter of the cross hole is larger than the diameter of the pin 2, the pin 2 can be easily inserted. Then install the shaft end baffle 3, so that the shaft end baffle 3 is embedded in the limiting groove 21 of the pin 2 to limit the pin 2. After installation, lift the upper connecting rod upwards. At this time, the pin 2 abuts against the first arc surface 111 of the lifting hole 11 at the lower end of the upper connecting rod. Continue to lift the upper connecting rod upwards, and the first arc surface 111 of the lifting hole at the upper end of the lower connecting rod abuts against the outer wall of the pin 2, thereby limiting the pin 2 between the two first arc surfaces 111. This ensures the stability of the connection between the two connecting rods, facilitates the installation of the connecting rods, and improves the installation efficiency of the connecting rods.

[0052] Example 2:

[0053] This embodiment provides a hydraulic gate opener / closer linkage for a lock water conveyance corridor valve, comprising a rod body 1. Both ends of the rod body 1 are provided with connecting lifting holes 11. The inner wall of the connecting lifting holes 11 is provided with a first arc surface 111 and a second arc surface 112. The first arc surface 111 is a circular arc surface and is located near the end of the rod body 1. The second arc surface 112 is located on the side opposite to the first arc surface 111. The diameter of the inscribed circle of the connecting lifting hole 11 is larger than the diameter of the circle of the first arc surface 111. The difference between this embodiment and Embodiment 1 is that this embodiment does not include a pin 2. That is, in application, the first end of the linkage is connected to the lifting cylinder 5 of the gate opener / closer through the connecting lifting hole 11, and the second end of the linkage is connected to the valve 6 through another connecting lifting hole 11.

[0054] The remaining aspects are basically the same as in Example 1, and will not be repeated here.

[0055] 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 ship lock waterway valve hydraulic hoist connecting rod, comprising a rod body (1) and a pin shaft (2), characterized in that: Both ends of the rod (1) are provided with connecting lifting holes (11), and the inner wall of the connecting lifting holes (11) is provided with a first arc surface (111) and a second arc surface (112); The first arc surface (111) is a circular arc surface, and the first arc surface (111) is arranged on one side near the end of the rod (1); The second arc surface (112) is arranged on the side opposite to the first arc surface (111); The diameter of the inscribed circle of the connecting lifting hole (11) is larger than the diameter of the circle of the first arc surface (111); The pin (2) is inserted and fixed in the connecting hole (11) at one end of the rod (1).

2. The hydraulic opening and closing mechanism connecting rod for a lock water conveyance corridor valve according to claim 1, characterized in that: The rod (1) includes a web (12) and two flanges (13), the two flanges (13) are arranged opposite to each other, the web (12) is arranged between the two flanges (13), and the two sides of the web (12) are welded and fixed to the two flanges (13) respectively. The connecting lifting holes (11) are arranged on the two flanges (13).

3. The hydraulic opening and closing mechanism connecting rod for a lock water conveyance corridor valve according to claim 2, characterized in that: It also includes a web stiffening plate (14), which is welded and fixedly connected to the web (12), and the two ends of the web stiffening plate (14) are welded and fixed to the flanges (13) on both sides of the web (12); multiple web stiffening plates (14) are arranged, and multiple web stiffening plates (14) are arranged at intervals along the length direction of the rod (1).

4. The hydraulic opening and closing mechanism connecting rod for a lock water conveyance corridor valve according to claim 2, characterized in that: One end of the rod (1) is arranged as a wide end and the other end of the rod (1) is arranged as a narrow end. The wide end is provided with a mounting groove (15) which is arranged between the two flanges (13). The width of the mounting groove (15) is greater than the width of the narrow end rod (1).

5. The hydraulic opening and closing mechanism connecting rod for a lock water conveyance corridor valve according to claim 4, characterized in that: The rod (1) also includes a support frame base plate (16), two support frame base plates (16) are arranged, and the two support frame base plates (16) are respectively welded and fixed to the outside of the two flanges (13), and the two support frame base plates (16) are arranged on the wide end of the rod (1).

6. The hydraulic opening and closing mechanism connecting rod for a lock water conveyance corridor valve according to claim 5, characterized in that: The rod (1) also includes a support frame rib (17), the first end of which is welded and fixed to the flange (13), and the second end of which is welded and fixed to the support frame base plate (16); each support frame base plate (16) is provided with multiple support frame ribs (17).

7. A hydraulic opening and closing mechanism connecting rod for a lock water conveyance corridor valve according to any one of claims 2-6, characterized in that: The rod body (1) also includes a first lifting hole stiffening plate (18) and a second lifting hole stiffening plate (19). Two first lifting hole stiffening plates (18) are provided. Both first lifting hole stiffening plates (18) are arranged at the wide end of the rod body (1), and the two first lifting hole stiffening plates (18) are respectively welded and fixed to the side of the two flanges (13) away from the web plate (12). Two second lifting hole stiffening plates (19) are provided. Both second lifting hole stiffening plates (19) are arranged at the narrow end of the rod body (1), and the two second lifting hole stiffening plates (19) are respectively welded and fixed on the side of the two flanges (13) away from the web plate (12).

8. The hydraulic opening and closing mechanism connecting rod for a lock water conveyance corridor valve according to claim 4, characterized in that: The hydraulic opening and closing mechanism of the lock water conveyance corridor valve also includes a shaft end baffle (3) and a fastener (4). One end of the pin (2) is provided with a limiting groove (21). The shaft end baffle (3) is fixedly connected to the wide end of the rod body (1) by the fastener (4). The shaft end baffle (3) is embedded in the limiting groove (21).

9. A ship lock waterway valve hydraulic hoist connecting rod, comprising a rod body (1), characterized in that: Both ends of the rod (1) are provided with connecting lifting holes (11), and the inner wall of the connecting lifting holes (11) is provided with a first arc surface (111) and a second arc surface (112); The first arc surface (111) is a circular arc surface, and the first arc surface (111) is arranged on one side near the end of the rod (1); The second arc surface (112) is arranged on the side opposite to the first arc surface (111); The diameter of the inscribed circle of the connecting lifting hole (11) is greater than the diameter of the circle of the first arc surface (111).

Images