Linkage device for gate rod piece of hoist

Abstract

The utility model relates to the technical field of hoist gates, in particular to a hoist gate rod piece linkage device which comprises a gate, two vertical plates are fixedly installed at the upper end of the gate, movable grooves are formed in the vertical plates, pin shafts are arranged in the movable grooves in a sliding mode, a plurality of blocking covers are fixedly arranged on the pin shafts, and the blocking covers are fixedly connected with the gate. The blocking covers are distributed on the two sides of the movable groove, a lead screw is rotationally arranged on the pin shaft, and the lead screw is arranged between the two vertical plates. The gate is rotationally connected with the bottom end of the lead screw through the vertical plate and the pin shaft, when the gate is sealed, the gate can radially move by the compression distance of the sealing ring, in the radial movement process of the gate, the lead screw can radially move in the movable groove in a small range through the pin shaft, the problem that the lead screw cannot radially move and is bent is solved, and the service life of the gate is prolonged. Therefore, bending fatigue of the lead screw can be effectively avoided, and the service life of the lead screw is greatly prolonged.

Description

Technical Field

[0001] The utility model relates to a linkage device for rods, in particular to a linkage device for the rods of a hoist gate, belonging to the technical field of hoist gates. Background Art

[0002] A hoist gate, also known as a gate hoist, is widely used in water conservancy projects, water supply and drainage systems, industrial pipelines and other fields. The linkage device for the rods of a hoist gate is an indispensable device in water conservancy projects, water supply and drainage systems, industrial pipelines and other fields. It receives the instructions of the control system, converts the energy of the power system into mechanical motion, and then drives the gate rods to rotate or move linearly to realize the opening and closing of the gate.

[0003] In the prior art, the linkage mechanism for the rods of a hoist gate is generally set as a pin shaft, a vertical plate, and a lead screw fixedly connected. When sealing, the gate will move radially slightly to press the sealing ring against the door stop. At this time, the lead screw cannot move and can only adapt by bending slightly. After the gate is used for a long time, it will cause the lead screw to bend and fatigue, thereby shortening the service life of the lead screw.

[0004] Therefore, it is urgent to improve the linkage mechanism for the rods of a hoist gate to solve the above problems. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a linkage device for the rods of a hoist gate. The gate is rotatably connected to the bottom end of the lead screw through the vertical plate and the pin shaft. When sealing, the gate will move radially by the distance of the compression of the sealing ring. During the radial movement of the gate, the lead screw can move radially slightly through the pin shaft inside the movable groove, solving the problem that the lead screw cannot move radially and bend, and thus effectively avoiding the bending fatigue of the lead screw, thereby greatly extending the service life of the lead screw.

[0006] To achieve the above purpose, the main technical solutions adopted by the utility model include:

[0007] A linkage device for the rods of a hoist gate, including a gate, two vertical plates are fixedly installed at the upper end of the gate, a movable groove is opened on the vertical plate, a pin shaft is slidably arranged inside the movable groove, a plurality of retaining covers are fixedly arranged on the pin shaft, the retaining covers are distributed on both sides of the movable groove, and a lead screw is rotatably arranged on the pin shaft, and the lead screw is arranged between the two vertical plates.

[0008] Preferably, the two vertical plates are arranged in opposite directions at the middle of the top end of the gate, and the lead screw is aligned with the middle position of the upper end of the gate.

[0009] Preferably, a connecting block is fixedly arranged at the bottom end of the lead screw, and a through hole is opened on the connecting block.

[0010] Preferably, the pin shaft penetrates through the through hole and the movable groove and extends to both sides of the vertical plate.

[0011] Preferably, the retaining covers are arranged on both sides of the vertical plate. The appearance of the movable groove is a straight groove structure, and the radius of the retaining cover is greater than the straight groove length of the movable groove.

[0012] Preferably, a set of the retaining covers corresponds to one movable groove, and the two retaining covers seal both ends of one movable groove.

[0013] The utility model has at least the following beneficial effects:

[0014] 1. The gate of the utility model is rotatably connected to the bottom end of the lead screw through the vertical plate and the pin shaft. When the gate is sealed, the gate will radially move the compression distance of the sealing ring. During the radial movement of the gate, the lead screw can slightly radially move inside the movable groove through the pin shaft, solving the problem that the lead screw cannot radially move and bend, and thus effectively avoiding the generation of bending fatigue of the lead screw, thereby greatly extending the service life of the lead screw. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present application, and constitute a part of the present application. The illustrative embodiments and descriptions thereof of the present application are used to explain the present application, and do not constitute an improper limitation of the present application. In the drawings:

[0016] Figure 1 is the overall elevation view of the utility model;

[0017] Figure 2 is of the utility model Figure 1 enlarged schematic view at A;

[0018] Figure 3 is the exploded view of the structure of the utility model;

[0019] Figure 4 is the schematic view of the movable groove structure of the utility model.

[0020] In the figure, 1, gate; 2, vertical plate; 3, movable groove; 4, pin shaft; 5, retaining cover; 6, lead screw; 7, connecting block; 8, through hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The following will describe in detail the embodiments of the present application in conjunction with the drawings and embodiments, so as to fully understand the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects and implement accordingly.

[0022] As Figure 1 - Figure 4As shown in the figure, the linkage device for the hoist gate rod provided in this embodiment includes a gate 1. Two vertical plates 2 are fixedly installed at the upper end of the gate 1. An activity groove 3 is formed on the vertical plate 2. A pin shaft 4 is slidably arranged inside the activity groove 3. Four retaining caps 5 are fixedly arranged on the pin shaft 4. Two retaining caps 5 form a group and are distributed on both sides of the activity groove 3. A lead screw 6 is rotatably arranged on the pin shaft 4. The gate 1 is rotatably connected to the bottom end of the lead screw 6 through the vertical plate 2 and the pin shaft 4. The lead screw 6 is arranged between the two vertical plates 2;

[0023] Among them, the gate 1 is rotatably connected to the bottom end of the lead screw 6 through the vertical plate 2 and the pin shaft 4. When the gate 1 is sealed, the gate 1 will radially move the distance of the compression of the sealing ring. During the radial movement of the gate 1, the lead screw 6 can slightly radially move inside the activity groove 3 through the pin shaft 4, solving the problem that the lead screw 6 cannot radially move and bend, and thus effectively avoiding the generation of bending fatigue of the lead screw 6, thereby greatly extending the service life of the lead screw.

[0024] Further, as Figure 1 - Figure 4 shown, the two vertical plates 2 are arranged in the middle of the top end of the gate 1 in the reverse direction, and the lead screw 6 is aligned with the middle position of the upper end of the gate 1. The hoist can control the opening and closing of the gate 1 by sliding the lead screw 6 up and down. The lead screw 6 is arranged between the two vertical plates 2. The two vertical plates 2 are arranged in the middle of the top end of the gate 1 in the reverse direction. On the one hand, it is convenient to install the lead screw 6, and on the other hand, it can make the power distribution of the gate 1 by the lead screw 6 balanced, preventing the problem of jamming during the sliding of the gate.

[0025] Furthermore, as Figure 2 and Figure 3 shown, a connecting block 7 is fixedly arranged at the bottom end of the lead screw 6. A through hole 8 is formed on the connecting block 7. The pin shaft 4 passes through the through hole 8 and the activity groove 3 and extends to both sides of the vertical plate 2. The cooperation between the activity groove 3 and the pin shaft 4 can play a certain role in positioning and guiding the movement of the lead screw 6; enabling the gate 1 to move along a predetermined direction and trajectory during the working process, preventing the lead screw 6 from deviating, shaking or misaligning during the movement of the gate 1, and ensuring the stability and accuracy of the operation of the entire system.

[0026] Still further, as Figure 1 - Figure 4 shown, the retaining caps 5 are arranged on both sides of the vertical plate 2. The appearance of the activity groove 3 is a straight groove structure. The radius of the retaining cap 5 is greater than the length of the straight groove of the activity groove 3. Since the radius of the retaining cap 5 is relatively large and exceeds the length of the activity groove 3, when the pin shaft 4 moves inside the activity groove 3, the retaining cap 5 can prevent the pin shaft 4 from disengaging from both ends of the activity groove 3, thus ensuring the stability of the connection between the lead screw 6 and the vertical plate 2;

[0027] In addition, as Figure 3As shown, a set of retaining covers 5 corresponds to an active slot 3. The two retaining covers 5 seal both ends of an active slot 3. During the operation of the device, vibrations, impacts, etc. may occur. Closing both ends of the active slot 3 can effectively prevent the pin shaft from accidentally falling out of the active slot under these external forces, ensuring the stability and reliability of the connection structure, preventing the pin shaft from moving excessively within the active slot, and ensuring the accuracy of the stroke and direction of the pin shaft movement, thereby helping to maintain the motion accuracy and working performance of the entire system.

[0028] Among them, when both ends of the active slot 3 are sealed by the retaining covers 5, it can block foreign matters such as dust, debris, and moisture from entering the interior of the active slot 3. If foreign matters enter the active slot 3, it may affect the movement flexibility of the pin shaft 4, increase wear, and even cause jamming failures. It can protect other parts inside the active slot 3, such as springs, etc., extending the service life and performance stability of these parts. The retaining cover 5 can reduce the leakage of lubricating grease and the pollution of grease by external impurities.

[0029] Such as Figure 1 - Figure 4 As shown, the principle of the linkage device for the hoist gate rod provided in this embodiment is as follows:

[0030] Four retaining covers 5 are fixedly arranged on the pin shaft 4. Two retaining covers 5 form a group and are distributed on both sides of the active slot 3. A lead screw 6 is rotatably arranged on the pin shaft 4. The gate 1 is rotatably connected to the bottom end of the lead screw 6 through the vertical plate 2 and the pin shaft 4. The lead screw 6 is arranged between the two vertical plates 2. The gate 1 is rotatably connected to the bottom end of the lead screw 6 through the vertical plate 2 and the pin shaft 4. When the gate 1 is sealed, the gate 1 will radially move the distance of the compression of the sealing ring. During the radial movement of the gate 1, the lead screw 6 can slightly radially move inside the active slot 3 through the pin shaft 4, solving the problem that the lead screw 6 cannot radially move and bend, and thus effectively avoiding the generation of bending fatigue of the lead screw 6. When both ends of the active slot 3 are sealed by the retaining covers 5, it can block foreign matters such as dust, debris, and moisture from entering the interior of the active slot 3.

[0031] As used in the specification and claims, certain terms are used to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. The specification and claims do not use the difference in names as a way to distinguish components, but use the difference in functions of components as the criterion for distinction. As mentioned throughout the specification and claims, "comprising" is an open-ended term and should be interpreted as "including but not limited to". "Substantially" means within an acceptable error range. Those skilled in the art can solve technical problems within a certain error range and basically achieve technical effects.

[0032] It should be noted that the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a commodity or system comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such commodity or system. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the commodity or system comprising the element.

[0033] The above description shows and describes several preferred embodiments of the present invention. However, as mentioned above, it should be understood that the present invention is not limited to the forms disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the inventive concept described herein through the above teachings or the techniques or knowledge in the relevant field. Any changes and modifications made by those skilled in the art without departing from the spirit and scope of the present invention shall fall within the protection scope of the appended claims of the present invention.

Claims

1. A gate rod linkage device for a hoist, comprising a gate (1), characterized in that: Two vertical plates (2) are fixedly mounted on the upper end of the gate (1), and a movable groove (3) is provided on the vertical plate (2). A pin shaft (4) is slidably arranged inside the movable groove (3), and a plurality of blocking covers (5) are fixedly arranged on the pin shaft (4). The blocking covers (5) are distributed on both sides of the movable groove (3), and a screw rod (6) is rotatably arranged on the pin shaft (4), and the screw rod (6) is arranged between the two vertical plates (2).

2. A gate rod linkage device for a hoist according to claim 1, characterized in that: The two vertical plates (2) are arranged in opposite directions at the middle of the top end of the gate (1), and the screw rod (6) is aligned with the middle position of the upper end of the gate (1).

3. A gate rod linkage device for a hoist according to claim 1, characterized in that: A connecting block (7) is fixedly provided at the bottom end of the screw rod (6), and a through hole (8) is provided on the connecting block (7).

4. A gate rod linkage device for a hoist according to claim 3, characterized in that: The pin shaft (4) passes through the through hole (8) and the movable groove (3) and extends to both sides of the vertical plate (2).

5. The gate rod linkage device of a hoist according to claim 1, characterized in that: The blocking cover (5) is arranged on both sides of the vertical plate (2); the movable groove (3) has a straight groove structure in appearance; and the radius of the blocking cover (5) is greater than the straight groove length of the movable groove (3).

6. A gate rod linkage device for a hoist according to claim 1, characterized in that: A group of the blocking covers (5) corresponds to one of the movable grooves (3), and two of the blocking covers (5) close the two ends of one of the movable grooves (3).

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