Water seal pressing plate with optimized mounting hole pitch

Abstract

The utility model provides a water seal pressure plate with optimized mounting hole pitch, which comprises a pressure plate, a water seal rubber and a water seal base plate, and a plurality of round holes are respectively arranged among the pressure plate, the water seal rubber and the water seal base plate and are locked by bolts and nuts. The round holes in the pressing plate are arranged in an array mode along the left side and the right side of the axis of the pressing plate, and the distance between every two adjacent round holes ranges from 75 mm to 200 mm. The distance between the mounting holes is reasonably determined, the phenomena that the rubber water seal is compressed and loosened and a pressing plate base material is damaged due to the fact that the mounting holes are too dense, the pressing plate is insufficient in rigidity and bolts are overloaded and invalid due to the fact that the mounting holes are too sparse are avoided, it is ensured that the pressing plate is evenly stressed, and the sealing performance and durability of a water seal system are improved; the engineering uncertainty and the maintenance cost are reduced, the economic benefit is improved, and the sealing safe operation requirement of the engineering under the high water head or ultrahigh water head operation working condition is better met.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of water conservancy and hydropower engineering, and particularly relates to a water seal pressing plate with optimized installation hole spacing. BACKGROUND

[0002] In the water conservancy and hydropower engineering, the water seal is a key component for realizing the water retaining function of the gate.

[0003] The existing water seal pressing plate lacks reasonable installation hole spacing optimization structure design and relies on human experience, and is prone to structural sealing failure and functional failure. Under high or super-high water head operating conditions, the water seal bears a huge water pressure, and in order to ensure effective sealing, the engineering puts forward higher requirements for the clamping, supporting and uniform bearing of the water seal pressing plate. The existing water seal pressing plate hole spacing design faces great engineering uncertainty.

[0004] The installation hole spacing of the existing water seal pressing plate is prone to over-dense phenomenon, which can easily cause a larger clamping force in the local area, leading to over-compression relaxation and plastic permanent deformation of the rubber water seal, inducing the decrease of the elasticity of the rubber water seal material and the loosening, and causing structural sealing failure and functional failure. At the same time, the over-dense installation hole spacing causes damage to the base material of the water seal pressing plate, thereby significantly increasing the bearing deformation of the pressing plate, and causing the local pressing plate to fail to meet the structural bearing performance requirements under high water head pressure environment.

[0005] The installation hole spacing of the existing water seal pressing plate is prone to over-dense phenomenon, which can easily cause a larger clamping force in the local area, leading to over-compression relaxation and plastic permanent deformation of the rubber water seal, inducing the decrease of the elasticity of the rubber water seal material and the loosening, and causing structural sealing failure and functional failure. At the same time, the over-dense installation hole spacing causes damage to the base material of the water seal pressing plate, thereby significantly increasing the bearing deformation of the pressing plate, and causing the local pressing plate to fail to meet the structural bearing performance requirements under high water head pressure environment.

[0006] The existing water seal pressing plate design causes excessive processing and frequent maintenance, resulting in a decrease in economic benefits. UTILITY MODEL CONTENTS

[0007] The main purpose of the utility model is to provide a water seal pressing plate with optimized installation hole spacing, which is expected to effectively solve the problems in the background art.

[0008] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0009] A water seal pressing plate with optimized installation hole spacing, comprising a pressing plate, a water seal rubber and a water seal backing plate, wherein a plurality of round holes are provided between the pressing plate, the water seal rubber and the water seal backing plate, and are locked by bolts and nuts.

[0010] The circular holes on the pressing plate are arranged in an array on both sides of the axis of the pressing plate, and the interval between two adjacent circular holes is 75-200 mm.

[0011] While the above technical solutions are adopted, the utility model can also adopt or combine to adopt the following technical solutions:

[0012] As a preferred technical solution of the utility model: the interval between two adjacent circular holes is 200 mm or 150 mm or 100 mm or 75 mm.

[0013] As a preferred technical solution of the utility model: the circular hole array is arranged in a staggered arrangement form.

[0014] As a preferred technical solution of the utility model: the circular hole array is arranged in a same-row multi-column form.

[0015] As a preferred technical solution of the utility model: the minimum distance between the circular hole on the pressing plate and the edge of the pressing plate is greater than 1.5-2 times the diameter of the bolt.

[0016] As a preferred technical solution of the utility model: the pressing plate is made of high-strength structural steel material.

[0017] The utility model provides a water seal pressing plate of optimization installation hole interval has the following beneficial effect: the utility model determines the installation hole interval reasonably, avoids the over compression relaxation of rubber water seal caused by the over dense installation hole and the damage of pressing plate base material, and the insufficient rigidity of pressing plate and bolt overload failure caused by the over sparse installation hole, ensures that the pressing plate is stressed evenly, improves the sealing performance and durability of water seal system, reduces the engineering uncertainty and maintenance cost, improves the economic benefit, better satisfies the sealing safe operation requirement of engineering under high water head or super high water head operation condition. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the cross section view of the water seal pressing plate of optimization installation hole interval provided by the utility model that circular holes are staggered;

[0019] Figure 2 It is the top view of staggered arrangement;

[0020] Figure 3 It is the cross section view of same-row multi-column;

[0021] Figure 4 It is the top view of same-row multi-column;

[0022] In the drawing: 1-pressing plate; 2-bolt; 3-water seal rubber; 4-nut; 5-water seal pad plate. DETAILED DESCRIPTION

[0023] The utility model will be further described in detail with reference to the drawings and specific embodiments.

[0024] As shown in Figures 1-4 A water seal pressing plate with optimized mounting hole spacing, comprising a pressing plate 1, a water seal rubber 3, and a water seal gasket 5, a plurality of round holes are arranged between the pressing plate 1, the water seal rubber 3, and the water seal gasket 5, and are locked by bolts and nuts; the round holes on the pressing plate 1 are arranged in an array on both sides of the axis of the pressing plate 1, and the spacing between adjacent two round holes is 75-200 mm.

[0025] The spacing d between adjacent two round holes is 200 mm or 150 mm or 100 mm or 75 mm, as shown in Figure 2 and 4 When arranged in an interlaced arrangement, the spacing d between adjacent two round holes is the distance between the centers of the two closest round holes, and when arranged in a same-row multi-column arrangement, the spacing d between adjacent two round holes is the distance between the centers of the two round holes on both sides of the axis of the pressing plate 1.

[0026] In the case of super-high water head, the round hole array is arranged in an interlaced arrangement to improve the load bearing capacity of a single bolt.

[0027] When the area of the pressing plate is large, the round hole array is arranged in a same-row multi-column arrangement to uniformly disperse the stress on the bolts.

[0028] The minimum distance between the round holes on the pressing plate 1 and the edge of the pressing plate 1 is greater than 1.5-2 times the diameter of the bolt.

[0029] The pressing plate 1 is made of high-strength structural steel material.

[0030] Specifically, the water seal pressing plate with optimized mounting hole spacing is implemented by the following method:

[0031] In the actual installation process, first, the water seal rubber 3 is laid on the interface that needs to be waterproofed, and then the pressing plate 1 is placed above the water seal rubber 3 so that the through hole is aligned with the screw hole on the water seal rubber 3; then, the bolt 2 is inserted from the round hole on the pressing plate 1, and the pressing plate 1, the water seal rubber 3, and the water seal gasket 5 are clamped and fixed by the nut 4. Due to the close fit between the bolt head and the round hole structure of the pressing plate 1, the bolt 2, the pressing plate 1, and the water seal gasket 5 are completely integrated, and in the case of high water head and super-high water head, the water seal bearing and tear resistance are more effectively clamped and supported, ensuring the durability and reliability of the water seal operation.

[0032] The above specific embodiments are used to explain and illustrate the utility model, which are only preferred embodiments of the utility model, but not limit the utility model, and any modification, equivalent replacement, improvement, etc. made to the utility model within the spirit and protection scope of the claims of the utility model all fall within the protection scope of the utility model.

Claims

1. A water seal pressure plate with optimized installation hole spacing, comprising a pressure plate (1), a water seal rubber (3), and a water seal pad (5), wherein a plurality of circular holes are respectively provided between the pressure plate (1), the water seal rubber (3), and the water seal pad (5) and are locked by bolts and nuts; Its characteristics are: The circular holes on the pressing plate (1) are arranged in an array along the left and right sides of the axis of the pressing plate (1), and the spacing between two adjacent circular holes is 75-200 mm.

2. The water-sealing pressure plate with optimized installation hole spacing according to claim 1, characterized in that: The distance between two adjacent circular holes is 200 mm or 150 mm or 100 mm or 75 mm.

3. The water-sealing pressure plate with optimized installation hole spacing according to claim 1, characterized in that: The circular hole array is arranged in a staggered manner.

4. The water-sealing pressure plate with optimized installation hole spacing according to claim 1, characterized in that: The circular hole array is arranged in multiple rows in one row.

5. The water-sealing pressure plate with optimized installation hole spacing according to claim 1, characterized in that: The minimum distance between the circular hole on the pressing plate (1) and the edge of the pressing plate (1) is greater than 1.5-2 times the diameter of the bolt.

6. The water-sealing pressure plate with optimized installation hole spacing according to claim 1, characterized in that: The pressing plate (1) is made of high-strength structural steel material.

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