CN111364521A

CN111364521A - Valve wellhead device

Info

Publication number: CN111364521A
Application number: CN202010366543.0A
Authority: CN
Inventors: 张奇峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-30
Filing date: 2020-04-30
Publication date: 2020-07-03

Abstract

The invention provides a valve well head device which is characterized by comprising a seat ring, a well cover and a supporting part, wherein the well cover is connected with the seat ring; the well cover is provided with a locking device and an elastic device; effectively prevent the well head that falls through the supporting part, can more easily open the well lid through resilient means.

Description

Valve wellhead device

Technical Field

The invention relates to the field of airport parking aprons, in particular to a valve wellhead device.

Background

The valve well is a valve of underground pipelines and underground pipelines (such as tap water, oil, natural gas pipelines and the like), is convenient to open and close part of pipe networks or overhaul operation when needed, a pit (or a well) similar to a small room is arranged, the valve and the like are arranged in the pit, regular inspection, cleaning and dredging of the pipelines are facilitated, and the junction of pipeline blockage is prevented.

The inventor of the invention finds that the existing valve well cover is heavy, does not have a fixed force-borrowing device, and needs to be opened by two persons by using a crowbar; meanwhile, the existing valve well has a small well mouth and is difficult to get into the well; during actual operation, the device can fall into the well due to careless operation. Therefore, there is a need for a valve wellhead assembly.

Disclosure of Invention

The invention aims to solve the problems and provides a valve well head device which comprises a seat ring, a well cover and a supporting part, wherein the well cover is also provided with a locking device and an elastic device, the well head is effectively prevented from falling through the supporting part, and the well cover can be opened more easily through the elastic device.

In order to achieve the purpose, the invention adopts the following technical scheme.

A valve well head device comprises a seat ring, a well cover and a supporting part, wherein the well cover is connected with the seat ring, and the supporting part is connected with the seat ring; the well lid is provided with a locking device and an elastic device.

Further, the well lid with one side hinged joint of seat circle, the supporting part with the opposite side hinged joint of seat circle.

Furthermore, a support rod is further arranged on the well cover.

Further, the elastic device is a gas spring.

Further, the supporting part is a grid.

Further, one end of the support part is provided with a protruding part.

Further, the seat ring is provided with a lug which is engaged with the projection.

Further, the valve wellhead device further comprises an escalator, and the escalator is connected with the seat ring.

Further, a sealing gasket is arranged between the well cover and the seat ring.

Further, the well lid is provided with raised patterns.

The positive effects of the valve wellhead device of the invention are as follows:

(1) the well cover comprises a seat ring, a well cover and a supporting part, wherein the well cover is also provided with a locking device and an elastic device, and the problem of small well mouth is solved by adopting a proper seat ring; the supporting part is arranged to effectively prevent the falling well mouth, and the well cover can be opened more easily through the elastic device.

(2) According to the invention, the support rods are arranged on the well lid, so that abnormal closing of the well lid caused by collision or wind speed can be prevented after the well lid is opened.

(3) The surface of the well lid is provided with an anti-skid design, and more than 10% of the surface of the well lid is provided with raised patterns with the height of at least 4mm, so that the well lid can effectively prevent skid.

Drawings

Fig. 1 is a schematic diagram provided by an embodiment of the present invention.

Fig. 2 is a schematic view of a top view provided by an embodiment of the present invention.

The reference numerals in the figures are respectively:

1. a seat ring; 2. a well cover; 3. a support portion; 4. a locking device; 5. an elastic device; 6. a support bar; 7. a protrusion; 8. a lug; 9. an escalator; 10. a fixing buckle; 11. a fixing frame.

Detailed Description

A specific embodiment of a valve wellhead assembly of the present invention is described below with reference to the accompanying drawings, but it should be noted that: the described embodiments are not intended to limit the practice of the invention. All similar structures and similar variations thereof adopting the invention shall fall within the scope of the invention. The following description of the embodiments refers to the accompanying drawings for illustrating the specific embodiments in which the invention may be practiced. In the embodiments, directional terms such as "up", "down", "front", "back", "left", "right", "top", "bottom", etc. refer to directions of the attached drawings only. Accordingly, the directional terms used are used for explanation and understanding of the present invention, and are not used for limiting the present invention.

See fig. 1 and 2. A valve well head device comprises a seat ring 1, a well cover 2 and a supporting part 3, wherein the well cover 2 is connected with the seat ring 1, and the supporting part 3 is connected with the seat ring 1; the well lid 2 is provided with a locking device 4 and an elastic device 5. Well lid 2 with one side hinged joint of seat circle 1, supporting part 3 with the opposite side hinged joint of seat circle 1.

The well lid 2 is made of A356 aluminum alloy, the A356 aluminum alloy is cast aluminum alloy with superior performance in castings, and ideal combination of high strength, good plasticity and high impact toughness can be achieved through heat treatment. The well lid 2 is processed by adopting a casting molding process. The well lid 2 is also provided with a support rod 6, one end of the support rod 6 is arranged on the well lid 2, and the other end is arranged in the seat ring 1; specifically, one end of the support rod 6 is connected to the well lid 2, and the other end of the support rod passes through a fixed frame 11 fixed on the seat ring 1; when the well lid 2 is opened, the supporting rod 6 is pulled to a certain position, and the supporting rod 6 is buckled on the fixing frame 11 to play a role of safe support. When the well lid 2 is closed, the support rod 6 is lifted up to be separated from the fixed frame 11, and at the moment, the self weight of the well lid 2 and the well lid 2 is slightly pushed so that the force of the well lid 2 is larger than the supporting force of the gas spring to be slowly closed. In this example, the following data were obtained by experimental studies: the push force of about 23KG is needed when the well lid 2 is closed until the well lid 2 is completely attached to the seat ring 1, the locking device 4 is released to buckle the seat ring 1, and the self weight of the well lid 2 is greater than the supporting force of the elastic device 5, so that the well lid cannot automatically bounce open without artificial lifting. The danger caused by the abnormal closing of the manhole cover 2 caused by collision or overlarge wind speed is prevented. The inside and outside all has orange warning region on the well lid 2, plays the warning effect, avoids well lid 2 to open the back, and the staff falls into by accident.

The seat ring 1 is made of glass fiber reinforced plastic composite material. Compared with the traditional cast aluminum and cast iron process, the well seat ring 1 has the advantages that the glass fiber reinforced plastic composite material is light and hard and has high mechanical strength under the condition of realizing the same volume and strength requirements of the seat ring 1 due to the large volume of the well seat ring 1. The seat ring 1 buried underground for a long time is ensured to be non-conductive and non-heat-conductive, corrosion-resistant and the explosion-proof grade of the product is improved. The seat ring 1 is made of materials and is ensured to meet the service life of 40 years under the actual working condition by the process.

The well lid 2 with be provided with sealed the pad between the seat circle 1. When the well lid 2 and the seat ring 1 are assembled, a nitrile rubber sealing ring is additionally arranged on the inner side of the well lid 2, and an aluminum sealing ring is adopted on the seat ring 1, so that after the well lid is closed, impurities of rainwater particles can be effectively prevented from entering the well, and the requirement of water impermeability is met. The reason for the aluminium design on the seat insert 1 is to facilitate the later development of gaps due to the hard material cushion on the periphery. The convenient change need not whole construction dismantlement, only needs local dismantlement to change, reduces cost of maintenance, and change efficiency is more expensive. The design of the triangular inclined plane ensures that the password adhesive tape is more easily contacted with the sealing element under the action of gravity, and ensures the sealing and waterproof functions. In this embodiment, well lid 2 installs damping liner additional with the contact surface of seat circle 1, guarantees through vulcanized rubber spare packing ring that the stability and silence in the use, and satisfies the requirement of slope test.

The relative position of well lid 2 and seat circle 1 increases permanent sign, when leading to apron and seat circle 1 to produce relative horizontal displacement because of uncontrollable factor, can discover and do corresponding processing the very first time. The permanent mark can be a concave pattern, and the permanent mark can also be in a shape which is not easy to wear or can be identified by combining colors.

The supporting part 3 is a grid, and the supporting part 3 is a grid welded by aluminum alloy. The support part 3 adopts the effect of grid to be when opening well lid 2, can not appear because the operation carelessly takes place the danger that falls in the well, plays the effect of protection operator, ensures the safety of operation. The supporting part 3 is after lifting, presents the vertical form with the well lid 2 after opening, can play the effect of supporting well lid 2, prevents to lead to the risk that the improper closure of well lid 2 produced because of collision or wind speed are too big. One end of the supporting part 3 is provided with a protruding part 7, the seat ring 1 is provided with a lug 8, the lug 8 is arranged at a position corresponding to the protruding part 7 and used for receiving the protruding part 7, and the lug 8 is matched with the protruding part 7. The supporting part 3 can be manually opened and fixed by a single person and is arranged at the wellhead to be convenient for operation. In practical implementation, a plurality of lugs 8 can be arranged in the seat ring 1 according to actual conditions. One side of the supporting part 3 is fixed on the seat ring 1 by a hinge, the other side is erected on the lug 8, when the seat ring is required to be opened and lifted to 90 degrees, a fixing buckle 10 for fixing the supporting part 3 is arranged at the position where the supporting part 3 and the seat ring 1 are overlapped, and the fixing buckle 10 fixed on the seat ring 1 penetrates through a grating hole on the supporting part 3 to buckle the grating for fixing. When it is desired to close, the support part 3 can be closed by lifting the holder buckle 10 upward to disengage the support part 3.

Locking device 4 adopts the material of aluminum alloy 7075-T6, and locking device 4 is equipped with the function of opening device commonly used and emergency opening device, and when opening device commonly used broke down and can 'T normally open well lid 2, accessible specific instrument strikes embedded emergency opening device's hole, opens inside hasp, and well lid 2 is automatic to be opened the back, and manual well lid 2 is opened completely. The common opening device and the emergency opening device select products with good adaptability, and later maintenance and replacement can be facilitated. The emergency opening device can not open the well lid 2 under normal conditions, the well lid 2 can be opened only by using a specific tool, and the emergency opening device can prevent the risk of incapability of operating due to the clamping of the common opening device.

The elastic device 5 is an air spring, and the air spring is easier to install than a torsion spring, so that subsequent maintenance is facilitated. Can be maintained on site without other special tools for the torsion spring. And simultaneously, the function of saving labor when opening is achieved. The well lid 2 and the seat ring 1 are assembled by adopting an air spring and hinge structure. In this example, the following data were obtained by experimental studies: the well lid 2 is opened to the biggest 11.5KG power of needs of 100 degrees angles, closes well lid 2 and needs 23KG thrust, and it is more convenient to open laborsavingly. When the locking means 4 is released, the manhole cover 2 does not spring open. In this embodiment, the elastic means 5 are selected from self-locking gas springs, which remain self-locking once the manhole cover 2 is lifted, over an angle of 80 ° and once in an angular position of 100 °, the manhole cover 2 can remain open. In specific implementation, the scheme of fixing a specific angle can be completed through a mechanical mechanism, such as a sliding lock catch. In another embodiment, the elastic means 5 is a gas spring and a torsion spring used in cooperation.

The valve wellhead device further comprises an escalator 9, the escalator 9 is connected with the seat ring 1, and the escalator 9 is made of aluminum alloy materials. When the operation personnel go into the well, the safety rope belt is fixed on the escalator 9, so that the safety of the personnel in the well is ensured, and the operation workers can not fall into the well due to the failure.

The well lid 2 is provided with raised patterns. Satisfy the skid-proof requirement of operating condition, the upper surface of well lid 2 adopts protruding decorative pattern design, protruding decorative pattern is the book shape decorative pattern, protruding decorative pattern permutation is arranged, plays the effect of antiskid and protection. The raised patterns are uniformly distributed on the upper surface of the well lid 2, the height of each raised pattern is 4mm-6mm, preferably, the height of each raised pattern is 4mm (millimeter), the area of each raised pattern accounts for 10% to 30% of the upper surface area of the well lid 2, and preferably, the area of each raised pattern accounts for 10% of the upper surface area of the well lid 2.

Claims

1. The valve wellhead device is characterized by comprising a seat ring, a well lid and a supporting part, wherein the well lid is connected with the seat ring, and the supporting part is connected with the seat ring; the well lid is provided with a locking device and an elastic device.

2. The valve well head assembly of claim 1, wherein the well lid is hingedly connected to one side of the seat ring and the support portion is hingedly connected to the other side of the seat ring.

3. The valve wellhead assembly of claim 1, wherein a support rod is further provided on the well cover.

4. A valve wellhead device according to claim 1 characterised in that the resilient means is a gas spring.

5. The valve wellhead device according to claim 1, wherein the support is a grating.

6. The valve wellhead device according to claim 1, wherein one end of the support is provided with a protrusion.

7. A valve wellhead assembly according to claim 6, in which the seat ring is provided with lugs which engage with the projections.

8. The valve wellhead device according to claim 1, further comprising an escalator, the escalator being connected to the seat ring.

9. The valve well head assembly of claim 1, wherein a gasket is disposed between the well lid and the seat ring.

10. The valve wellhead assembly of claim 1, wherein the well cover is provided with a raised pattern.