CN115949758A - Switch assembly and buoyancy tank flap valve - Google Patents

Abstract

The invention discloses a switch assembly and a buoyancy tank flap valve, wherein the switch assembly comprises: a support; the ejector rod is supported on the bracket, and one end of the ejector rod is provided with an abutting surface which can abut against a cover plate of the flap valve of the buoyancy tank; and the driving structure is arranged on the support, can act on the ejector rod and can drive the abutting surface to be close to or far away from the outer surface of the cover plate of the flap valve of the buoyancy tank. When the abutting surface abuts against the cover plate, the cover plate is abutted and cannot be opened, and the flap valve of the floating box is in a closed state; when the abutting surface is far away from the cover plate, the cover plate is jacked open under the action of water pressure, and the flap valve of the floating box is in an open state. The invention controls the on-off of the flap valve of the buoyancy tank by controlling the abutting surface of the ejector rod to be close to or far away from the cover plate.

Description

Switch assembly and buoyancy tank flap valve

Technical Field

The invention relates to the field of engineering drainage, in particular to a switch assembly and a buoyancy tank flap valve using the switch assembly.

Background

The flap valve of the buoyancy tank is of a one-way conduction structure and is mainly installed at the tail end of a pipeline and used for one-way water flowing to prevent external water from flowing backwards. The opening and closing of the valve do not need manual operation, the flap valve is opened when the water pressure in the pipeline is greater than the outside pressure, and the flap valve is closed when the outside water pressure is greater than the internal pressure of the pipeline. However, in the engineering example, when the communicating pipe needs to be manually water-adjusted in one direction to prevent the external water from flowing backward, a stop valve (ball valve gate valve) and the like need to be installed at the position of the floating box type flap valve to realize the stop and the conduction of the water flow. The stop valve (ball valve, gate valve) of market circulation at present is installed in the flotation tank formula bat door rear end in the engineering use, and the valve opening device height is mostly the customization size, sinks in the aquatic like the bat door at ordinary times, if meet the extremely difficult maintenance of circumstances such as valve corrosion opening fault under water. Therefore, there is a need in the art for a switch assembly that solves the above problems.

The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.

Disclosure of Invention

The invention aims to provide a switch assembly which can be operated to control the on-off of a flap valve of a buoyancy tank, can be arranged above a water surface and is convenient to maintain.

To achieve the above object, embodiments of the present invention provide a stand; the ejector rod is supported on the bracket, and one end of the ejector rod is provided with an abutting surface which can abut against a cover plate of the flap valve of the buoyancy tank; and the driving structure is arranged on the bracket, can act on the ejector rod and can drive the abutting surface to approach or be far away from the outer surface of the cover plate of the flap valve of the floating box.

In one or more embodiments of the present invention, one end of the jack is formed with a contact portion protruding toward the float flap door cover, and the abutment surface is formed at an end of the contact portion.

In one or more embodiments of the present invention, the driving structure includes a lead screw, and a slider sleeved on the lead screw and in threaded engagement with the lead screw, the lead screw is rotatably disposed on the bracket, and the ejector rod is connected to the slider.

In one or more embodiments of the present invention, the driving structure further includes a hand wheel connected to the lead screw, and the hand wheel is disposed at an end of the lead screw away from the contact portion.

In one or more embodiments of the invention, the support is further provided with a support, and the support is provided with a limiting hole for the ejector rod to pass through.

In one or more embodiments of the invention, a gusset plate is further arranged on the support piece, and the gusset plate is arranged on one side of the limiting hole and abuts against one side surface of the ejector rod.

The invention also provides a flap valve of the buoyancy tank, which comprises a pipeline; the cover plate covers the outlet of the pipeline and is hinged with the pipeline; and the buoyancy tank flap valve switch.

In one or more embodiments of the invention, the top end of the cover plate is rotatably connected to the pipe.

In one or more embodiments of the invention, the bracket is fixed to the pipe.

In one or more embodiments of the invention, an included angle between a plane where the opening of the pipe is located and the ejector rod is an acute angle.

Compared with the prior art, this paper comes its break-make of artificial control through set up the switch module at the pipeline end of flotation tank flap valve, and the switch module setting is in the surface of water top, convenient maintenance. Meanwhile, the relative position of the ejector rod and the cover plate is manually adjustable, so that the opening angle of the cover plate is controllable, water flow can be controlled by controlling the opening angle of the cover plate, and the overall flexibility is improved.

Drawings

FIG. 1 is a block diagram of a switch assembly according to one embodiment of the invention;

FIG. 2 is a block diagram of a float flap door according to an embodiment of the present invention;

FIG. 3 is a schematic view of a stent according to an embodiment of the present invention.

Fig. 4 is a block diagram of a duct and a cover plate according to an embodiment of the present invention.

Description of the main reference numerals:

100-switch structure, 10-bracket, 11-fixed column, 12-support piece, 121-limit hole, 122-gusset plate, 20-ejector rod, 30-drive structure, 31-lead screw, 32-slide block, 33-hand wheel, 200-buoyancy tank flap valve, 210-pipeline and 220-cover plate.

Detailed Description

Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the specific embodiments.

Throughout the specification and claims, unless explicitly stated otherwise, the term "comprise" or variations such as "comprises" or "comprising", etc., will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.

As shown in fig. 1, the switch assembly 100 according to the preferred embodiment of the present invention includes a bracket 10, a plunger 20, and a driving structure 30. Wherein the driving structure 30 is supported on the frame 10 and drives the stem 20 to approach and separate from the flap door. When the mandril 20 is far away from the flap valve, the water pressure in the tube is greater than the external water pressure, and the flap valve is opened; when the mandril 20 is close to the flap valve, the flap valve is propped against and can not be opened, and the flap valve is in a closed state.

As shown in fig. 1, a contact portion 21 protruding toward the flap cover is formed at one end of the plunger 20, and the contact portion 21 abuts against the flap, so that the contact area can be increased, and the contact end of the plunger 20 is prevented from being too sharp to damage the surface of the flap. Of course, in other embodiments, the contact portion 21 may be provided in a ball shape or other shapes in order to increase the contact area or prevent damage to the flap surface, and the embodiment is not limited.

Specifically, the driving structure 30 includes a screw 31 and a slider 32 sleeved on the screw 31, and the rod 20 is connected to the slider 32. The screw 31 and the slide block 32 are in threaded fit, and the slide block 32 can be controlled to move along the axial direction of the screw 31 by rotating the screw 31, and the push rod 20 is driven to approach or leave the flap valve. The ejector rod 20 and the sliding block 32 are preferably fixed by bolts, so that the fixing effect is good, and later-stage disassembly, assembly, transportation and maintenance are facilitated.

Preferably, the bracket 10 is provided with a fixing post 11, a bearing (not shown) is fixed in the fixing post 11, and both ends of the screw 31 are fixed in the bearing, so that the screw 31 can rotate relative to the bracket 10.

Meanwhile, in order to facilitate the operation of the screw 31, as shown in fig. 1, a hand wheel 33 is disposed at the top end of the screw 31, and the screw 31 can be rotated by rotating the hand wheel 33. In other embodiments, a wrench or other operating component may be provided to rotate the lead screw 31, and the embodiment is not limited.

Because the ejector rod 20 is partially submerged in water, the ejector rod 20 can shake under the action of water flow; meanwhile, the flap valve can also impact the ejector rod 20 under the action of water flow, and if the ejector rod 20 only has a fixed part with the sliding block 32, the fixed part of the ejector rod 20 and the sliding block 32 is easily damaged under the impact of the water flow and the flap valve, so that the ejector rod 20 needs to be limited.

As shown in fig. 3, a support 12 is provided on the bracket 10 toward the screw 31, and a stopper hole 121 is opened in the support 12. The lead screw 31 passes through the limiting hole 121 and is limited by the limiting hole 121, so that the fixation between the lead screw and the sliding block 32 is prevented from being damaged due to the shaking of the mandril 20, and even the whole driving structure 30 is prevented from being damaged.

It should be understood that the opening position of the limiting hole 121 should make the carrier rod 20 in a vertical state when not being subjected to an external force, and the size of the opening of the limiting hole 121 is slightly larger than that of the carrier rod 20 as a whole, so that the carrier rod 20 can rock within a certain range, and excessive friction between the carrier rod 20 and the limiting hole 121 is prevented.

Further, the gusset 122 is disposed on the brace 12 to provide more contact and support when the prop 20 abuts against the brace 12, so as to prevent the prop 20 from deforming due to too small contact area.

In fig. 3, the gusset 122 is disposed on one side of the restraint hole 121. In other embodiments, to provide more directional support, a support structure may be provided on the opposite side of the gusset 122 to prevent the roof bar 20 from deforming in other directions.

Also provided is a buoyancy module door 200 using the above-described opening and closing assembly, including a duct 210, a cover 220 hinged to the duct 210 and covering an opening of the duct 210, and the above-described opening and closing assembly 100.

As can be seen from fig. 2, the connection end of the cover plate 220 and the pipe 210 is disposed at the top of the pipe 210, so that the cover plate 220 can rotate in the vertical direction and can descend by its own weight to cover the opening of the pipe 210 when there is no water flow.

Further, the bracket 10 is fixed to the pipe 210. Meanwhile, in order to improve the fixing effect, the top or other parts of the bracket 10 may be fixed to an external wall, thereby preventing the switch assembly 100 from shaking as a whole.

Preferably, the hand wheel 33, the screw 31, the sliding block 32, the ejector rod 20 and the cover plate 220 are located on the same vertical line, and the screw 31 and the hand wheel 33 are exposed out of the water surface, so that the operation and the maintenance are convenient.

As shown in fig. 4, the angle between the plane of the opening of the pipe 210 and the push rod 20 is an acute angle, that is, the cover plate 220 is in an inclined state when being closed, and can completely cover the opening of the pipe 210 when no water flows, compared with the vertical state. Preferably, the angle between the plane of the opening of the pipe 210 and the top bar 20 is 5 ° to 45 °, preferably 5 ° to 30 °, for example, the angle may be 5 °, 8 °,10 °,12 °, 15 °.

Because the driving structure 30 is manually controlled, and the relative position between the top rod 20 and the cover plate 220 is also manually adjustable, the opening angle of the cover plate 220 is also controllable, the water flow can be controlled by controlling the opening angle of the cover plate 220, and the overall flexibility is improved.

Preferably, the support 10 and the ejector rod 20 can be made of I-steel, and are low in cost and easy to obtain. Meanwhile, since the bracket 10 is fixed to the duct 210 at a distance from the acting position of the cover 210 in the horizontal direction, the bracket 10 may take the form as shown in the drawing. That is, a long i-beam is used as the body portion of the bracket 10, a plurality of short i-beams are used at the upper end to fixedly enclose an annular portion, and the screw 31 is fixed to the annular portion to eliminate the horizontal deviation.

Meanwhile, a triangular jacking structural member is fixed at a part of the corner of the bracket 10 and used for providing support at the corner position and improving the overall rigidity of the bracket 10.

The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.

Claims (10)

1. A switch assembly, comprising:

a support;

the ejector rod is supported on the bracket, and one end of the ejector rod is provided with an abutting surface which can abut against a cover plate of the flap valve of the buoyancy tank;

and the driving structure is arranged on the bracket, can act on the ejector rod and can drive the abutting surface to approach or be far away from the outer surface of the cover plate of the flap valve of the floating box.

2. The switch assembly of claim 1, wherein one end of the stem is formed with a contact portion protruding toward the float flap door cover, and the abutment surface is formed at an end of the contact portion.

3. The switch assembly of claim 2, wherein the driving structure comprises a lead screw and a slider sleeved on the lead screw and engaged with the lead screw, the lead screw is rotatably disposed on the bracket, and the top bar is connected to the slider.

4. The switch assembly of claim 3, wherein the drive structure further comprises a hand wheel coupled to the lead screw, the hand wheel being disposed on an end of the lead screw distal from the contact portion.

5. The switch assembly of claim 1, wherein the bracket further comprises a support member, and the support member defines a limiting hole for the push rod to pass through.

6. The switch assembly of claim 5, wherein the support member further comprises a gusset plate, and the gusset plate is disposed at one side of the limiting hole and abuts against one side surface of the top bar.

7. A buoyancy tank flap valve, comprising:

a pipeline;

the cover plate covers the outlet of the pipeline and is hinged with the pipeline;

a float flap valve switch according to any one of claims 1 to 6.

8. The pontoon flap valve as recited in claim 7, wherein the top end of the cover plate is pivotally connected to the duct.

9. The pontoon flap valve as recited in claim 7, wherein said bracket is secured to said duct.

10. The buoyant box flap valve of claim 7, wherein the angle between the plane of the opening of the conduit and the top bar is acute.

Images