Gate internode connecting structure

Abstract

The utility model provides a gate internode connecting structure which comprises two parallel connecting plates, the first end of each connecting plate is hinged to an upper gate connecting plate through a first shaft body, and the second end of each connecting plate is hinged to a lower gate connecting plate through a second shaft body. The upper gate connecting plate and the lower gate connecting plate are arranged between the two connecting plates correspondingly, first limiting mechanisms used for limiting the axial displacement of the first shaft body are symmetrically arranged on the first shaft body, and second limiting mechanisms used for limiting the axial displacement of the second shaft body are symmetrically arranged on the second shaft body. The first limiting mechanism and the second limiting mechanism are located on the outer side of the connecting plate. Third limiting mechanisms are arranged at the two ends of the second shaft body and spaced from the second limiting mechanism by a preset distance. And through the arrangement of the third limiting mechanism, the second shaft body connected with the lower gate connecting plate is protected by one more after the second limiting mechanism fails, so that the second shaft body is prevented from moving and falling off in the vibration process of the lower gate.

Description

Technical Field

[0001] The utility model relates to the technical field of water conservancy and hydropower gates, in particular to a gate inter-section connection structure. Background Art

[0002] The tailwater inspection gate of a hydropower station is filled with water between sections. Six units share two inspection doors. After the unit maintenance is completed, the gate intersection needs to be filled with water when the tailwater inspection door is opened. During the intersection filling and horizontal pressure process, the gate vibrates greatly, especially the lower gate vibrates particularly violently under the action of water flow. During the process of filling the inspection gate with water, the fixing bolts of the retaining ring are easily broken due to the large impact, resulting in the fall of the retaining ring, which will cause the pin shaft hinged to the lower gate connecting plate to fall off, causing the gate to fall into the gate slot. Utility Model Content

[0003] The purpose of the utility model is to provide a gate inter-section connection structure, through the setting of the third limiting mechanism, so that the second shaft body connected to the lower gate connecting plate is protected by an additional layer after the second limiting mechanism fails, and at the same time, the overall length of the second shaft body is increased, thereby increasing the safe distance of the second shaft body moving along the axis, and improving the safety factor. In order to achieve the above technical features, the purpose of the utility model is achieved as follows:

[0004] A gate inter-section connection structure comprises two connecting plates arranged parallel to each other, a first end of the connecting plate being hinged to an upper gate connecting plate via a first axis, a second end of the connecting plate being hinged to a lower gate connecting plate via a second axis, the upper gate connecting plate and the lower gate connecting plate being arranged between the two connecting plates respectively, a first limiting mechanism for limiting the axial displacement of the first axis being symmetrically arranged on the first axis, a second limiting mechanism for limiting the axial displacement of the second axis being symmetrically arranged on the second axis, the first limiting mechanism and the second limiting mechanism being respectively located on the outer sides of the connecting plates, a third limiting mechanism being respectively arranged at both ends of the second axis and at a preset distance from the second limiting mechanism, the third limiting mechanism being used to prevent the second axis from falling off after the second limiting mechanism fails.

[0005] The first limiting mechanism, the second limiting mechanism and the third limiting mechanism all include a retaining ring, a bolt and a nut;

[0006] The retaining ring is sleeved on the outer side of the first shaft body, and one end of the bolt passes through the first radial hole on the retaining ring and the second radial hole on the first shaft body and is connected to the nut to form a first limiting mechanism;

[0007] The retaining ring is sleeved on the outer side of the second shaft body, and one end of the bolt passes through the first radial hole on the retaining ring and the third radial hole on the second shaft body and is connected to the nut to form a second limiting mechanism;

[0008] The retaining ring is sleeved on the outer side of the second shaft body, and one end of the bolt passes through the first radial hole on the retaining ring and the fourth radial hole on the second shaft body and is connected to the nut to form a third limiting mechanism.

[0009] A buffer pad is sleeved on the second shaft body, and the buffer pad is located between the retaining ring of the second limiting mechanism and the connecting plate.

[0010] The buffer pad is made of rubber.

[0011] The utility model has the following beneficial effects:

[0012] 1. Through the setting of the third limiting mechanism, the second shaft body connected to the lower gate connecting plate is provided with an additional layer of protection after the second limiting mechanism fails, so as to prevent the second shaft body from moving and falling off during the vibration of the lower gate; at the same time, through the setting of the interval between the second limiting mechanism and the third limiting mechanism, the overall length of the second shaft body is increased, thereby increasing the safe distance of the second shaft body moving along the axis and improving the safety factor;

[0013] 2. By setting the buffer pad, the impact force between the connecting plate and the retaining ring of the second limiting mechanism during the vibration of the lower gate can be effectively absorbed, thereby reducing the shear force on the bolts of the second limiting mechanism, thereby extending the working life of the bolts and improving the safety of the overall connection structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0015] Figure 1 A front view of a gate inter-section connection structure provided by an embodiment of the utility model;

[0016] Figure 2 A side view of a gate inter-section connection structure provided by an embodiment of the utility model;

[0017] Figure 3 A cross-sectional view of a first shaft provided in an embodiment of the utility model;

[0018] Figure 4 A cross-sectional view of a second shaft provided in an embodiment of the utility model;

[0019] Figure 5 A cross-sectional view of a retaining ring provided in an embodiment of the utility model;

[0020] In the figure: connecting plate 1, first shaft body 2, second radial hole 2a, upper gate connecting plate 3, second shaft body 4, third radial hole 4a, fourth radial hole 4b, lower gate connecting plate 5, first limiting mechanism 6, second limiting mechanism 7, third limiting mechanism 8, retaining ring 9a, first radial hole 9a1, bolt 9b, nut 9c, buffer pad 10. DETAILED DESCRIPTION

[0021] The embodiments of the present utility model are further described below in conjunction with the accompanying drawings.

[0022] See attached Figure 1-5 In order to realize the above technical features, the purpose of the utility model is achieved as follows:

[0023] A gate inter-section connection structure, comprising two connecting plates 1 arranged parallel to each other, the first end of the connecting plate 1 is hinged to the upper gate connecting plate 3 through a first shaft body 2, the second end of the connecting plate 1 is hinged to the lower gate connecting plate 5 through a second shaft body 4, the upper gate connecting plate 3 and the lower gate connecting plate 5 are respectively arranged between the two connecting plates 1, the first shaft body 2 is symmetrically provided with a first limiting mechanism 6 for limiting the axial displacement of the first shaft body 2, the second shaft body 4 is symmetrically provided with a second limiting mechanism 7 for limiting the axial displacement of the second shaft body 4, the first limiting mechanism 6 and the second limiting mechanism 7 are respectively arranged between the two connecting plates 1, and the first limiting mechanism 6 and the second limiting mechanism 7 are respectively arranged between the two connecting plates 1. The positioning mechanisms 7 are respectively located on the outside of the connecting plate 1, and third limiting mechanisms 8 are respectively provided at both ends of the second shaft body 4 and at a preset distance from the second limiting mechanism 7. In the utility model, on the one hand, through the setting of the third limiting mechanism 8, the second shaft body 4 connected to the lower gate connecting plate 5 is provided with an extra layer of protection after the second limiting mechanism 7 fails, so as to prevent the second shaft body 4 from moving and falling off during the vibration of the lower gate; on the other hand, through the setting of the spacing distance between the second limiting mechanism 7 and the third limiting mechanism 8, the overall length of the second shaft body 4 is increased, thereby increasing the safe distance for the second shaft body 4 to move along the axis, thereby improving the safety factor.

[0024] Further, the first limiting mechanism 6, the second limiting mechanism 7 and the third limiting mechanism 8 all include a retaining ring 9a, a bolt 9b and a nut 9c; the retaining ring 9a is sleeved on the outer side of the first shaft body 2, one end of the bolt 9b passes through the first radial hole 9a1 on the retaining ring 9a and the second radial hole 2a on the first shaft body 2 and is connected to the nut 9c to form the first limiting mechanism 6; the retaining ring 9a is sleeved on the outer side of the second shaft body 4, one end of the bolt 9b passes through the first radial hole 9a1 on the retaining ring 9a and the second radial hole 2a on the first shaft body 2 1. The third radial hole 4a on the second shaft body 4 is connected to the nut 9c to form a second limiting mechanism 7; the retaining ring 9a is sleeved on the outer side of the second shaft body 4, and one end of the bolt 9b passes through the first radial hole 9a1 on the retaining ring 9a and the fourth radial hole 4b on the second shaft body 4 and is connected to the nut 9c to form a third limiting mechanism 8; through the arrangement of the first limiting mechanism 6, the second limiting mechanism 7 and the third limiting mechanism 8 of the above structure, the axial displacement of the first shaft body 2 and the second shaft body 4 can be effectively limited.

[0025] Furthermore, a buffer pad 10 is mounted on the second shaft body 4, and the buffer pad 10 is located between the retaining ring 9a of the second limiting mechanism and the connecting plate 1. Through the setting of the buffer pad 10, the impact force between the connecting plate 1 and the retaining ring 9a of the second limiting mechanism during the vibration of the lower gate can be effectively absorbed, thereby reducing the shear force on the bolt 9b of the second limiting mechanism, thereby extending the working life of the bolt 9b and improving the safety of the overall connection structure.

[0026] Furthermore, the buffer pad 10 is made of rubber.

Claims

1. A gate inter-section connection structure, comprising two connecting plates (1) arranged parallel to each other, the first end of the connecting plate (1) being hinged to an upper gate connecting plate (3) via a first shaft (2), the second end of the connecting plate (1) being hinged to a lower gate connecting plate (5) via a second shaft (4), the upper gate connecting plate (3) and the lower gate connecting plate (5) being respectively arranged between the two connecting plates (1), the first shaft (2) being symmetrically provided with a first limiting mechanism (6) for limiting the axial displacement of the first shaft (2), the second shaft (4) being symmetrically provided with a second limiting mechanism (7) for limiting the axial displacement of the second shaft (4), the first limiting mechanism (6) and the second limiting mechanism (7) being respectively located on the outer sides of the connecting plates (1), characterized in that: Third limiting mechanisms (8) are respectively provided at both ends of the second shaft body (4) and at a preset distance from the second limiting mechanism (7), and the third limiting mechanisms (8) are used to prevent the second shaft body (4) from falling off after the second limiting mechanism (7) fails.

2. A gate inter-section connection structure according to claim 1, characterized in that: The first limiting mechanism (6), the second limiting mechanism (7) and the third limiting mechanism (8) all comprise a retaining ring (9a), a bolt (9b) and a nut (9c); The retaining ring (9a) is sleeved on the outer side of the first shaft (2); one end of the bolt (9b) passes through the first radial hole (9a1) on the retaining ring (9a) and the second radial hole (2a) on the first shaft (2) and is connected to the nut (9c), thereby forming a first limiting mechanism (6); The retaining ring (9a) is sleeved on the outer side of the second shaft body (4); one end of the bolt (9b) passes through the first radial hole (9a1) on the retaining ring (9a) and the third radial hole (4a) on the second shaft body (4) and is connected to the nut (9c), thereby forming a second limiting mechanism (7); The retaining ring (9a) is sleeved on the outer side of the second shaft body (4); one end of the bolt (9b) passes through the first radial hole (9a1) on the retaining ring (9a) and the fourth radial hole (4b) on the second shaft body (4) and is connected to the nut (9c), thereby forming a third limiting mechanism (8).

3. A gate inter-section connection structure according to claim 2, characterized in that: A buffer pad (10) is sleeved on the second shaft body (4), and the buffer pad (10) is located between the retaining ring (9a) of the second limiting mechanism and the connecting plate (1).

4. A gate inter-section connection structure according to claim 3, characterized in that: The buffer pad (10) is made of rubber.

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