CN215891345U

CN215891345U - Oil cap structure suitable for quick installation of oxygen valve

Info

Publication number: CN215891345U
Application number: CN202122170612.3U
Authority: CN
Inventors: 项博
Original assignee: Nordby Valve Zhejiang Co ltd
Current assignee: Nordby Valve Zhejiang Co ltd
Priority date: 2021-09-08
Filing date: 2021-09-08
Publication date: 2022-02-22
Anticipated expiration: 2031-09-08

Abstract

The utility model relates to the technical field of oxygen valves, in particular to an oil cap structure suitable for quickly installing an oxygen valve. The oil control device comprises an oxygen valve main body and a support, wherein the support is arranged above the oxygen valve main body, the left side and the right side of the support are respectively provided with an oil prohibiting cover, the left side and the right side of the support are both in a hollow isosceles trapezoid shape, and the external dimension of the oil prohibiting cover arranged on the left side of the support is the same as the external dimension of the left side of the support. The utility model has the advantages of effectively avoiding punching on the bracket, solving the problem that the bracket 2 is easy to deform and break due to the threaded hole of the existing product, improving the strength and the load bearing capacity of the bracket, effectively reducing the volume of a part of the bracket, ensuring that the bracket 2 of some high-pressure oxygen valves is purely under high load for a long time, and having the advantages of simple structure, low cost, convenient maintenance, safety, reliability and the like.

Description

Oil cap structure suitable for quick installation of oxygen valve

Technical Field

The utility model relates to the technical field of oxygen valves, in particular to an oil cap structure suitable for quickly installing an oxygen valve.

Background

The oxygen valve is a special valve specially designed for oxygen pipelines and widely applied to oxygen engineering pipe networks such as steel, metallurgy, petrifaction and chemical engineering. Oxygen is an oxidant, pure oxygen and high-concentration oxygen belong to strong oxidants and dangerous chemicals, and oxygen valves are required for pipe networks with the volume fraction purity of the oxygen of more than 23.5 percent. The working condition of the oxygen valve belongs to the flammable and explosive environment, once oxygen in the oxygen valve contacts grease, the oxygen valve is possibly burnt and exploded to cause safety problems, so that the oxygen valve is degreased and cleaned and is absolutely prohibited from oil.

The oxygen valve works normally by driving the valve rod to rotate through a hand wheel or an electric actuator or a pneumatic actuator, so that the oxygen valve is opened or closed. The sealing position of the oxygen valve is mainly at the valve core, the joint of the support and the valve body, and the joint of the valve rod and the filler, the leakage at the valve core only can lead the oxygen to flow to the other end from one end of a pipe network, and the oxygen can not leak to the outside, and the support and the joint of the valve body can not move relatively, so long as the valve is not disassembled, the leakage is extremely difficult, but the valve rod and the joint of the filler are the position with the highest leakage rate of the oxygen valve when the valve is opened and closed, and the position is estimated to be required to be provided with an oil-forbidden cover, thereby avoiding the contact of the leaked oxygen and the grease to cause fire and explosion.

The existing oxygen valve is characterized in that a screw hole is drilled in an oxygen valve support, and an oil prohibiting cover is installed on the support through a bolt, so that the aims of isolating grease and preventing the grease from contacting the valve at the support are achieved. However, oxygen valves are rarely used in the low pressure condition of 1.6MPa, and a large number of valves are used in the high pressure condition, even the pressure reaches 20MPa, and the extreme working temperature of part of the valves can reach 200 ℃.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the background art, the embodiment of the utility model provides an oil prohibiting cover structure suitable for quickly installing an oxygen valve.

The technical scheme of the embodiment of the utility model is as follows: the oxygen valve comprises an oxygen valve main body and a support, wherein the support is arranged above the oxygen valve main body, the left side and the right side of the support are respectively provided with an oil prohibiting cover, the left side and the right side of the support are both in a hollow isosceles trapezoid shape, the external dimension of the oil prohibiting cover arranged on the left side of the support is the same as that of the left side of the support, the external dimension of the oil prohibiting cover arranged on the right side of the support is the same as that of the right side of the support, the 2 oil prohibiting covers are respectively provided with a through hole, the through holes are positioned in the hollow positions of the left side and the right side of the support, and the through holes avoid other parts on the support; the through-hole of 2 forbidden oil covers is in same axis each other just stud is all installed in the middle of 2 forbidden oil cover's the through-hole, stud's both ends all stretch out the forbidden oil cover that corresponds separately, stud's both ends are screwed up there is the nut.

Preferably, the oil control pad is installed between the 2 oil control covers and the left side and the right side of the bracket corresponding to each oil control cover.

Preferably, the number of the through holes, the studs and the nuts on the 2 oil prohibiting covers is 4.

Preferably, the 2 oil-prohibiting covers are made of transparent materials, and the oil-prohibiting pads are made of materials with sealing performance.

Preferably, red oil prohibiting marks are arranged on the 2 oil prohibiting covers.

Preferably, the oil banned marking is formed by spraying paint.

Preferably, the outer peripheries of the stud bolts are all sleeved with sleeves, and the length of each sleeve is 0.1mm-0.5mm shorter than the distance between the 2 oil forbidden covers.

Preferably, the oxygen valve and the oil-forbidden cover structure are both prohibited from being coated or stuck with oil.

Preferably, a valve rod penetrates through the middle of the support, the end, extending out of the support, of the valve rod is connected with a hand wheel, and a protective cap is mounted above the hand wheel at the end, extending out of the support, of the valve rod.

Preferably, a sealing gasket is arranged between the support and the oxygen valve main body, a packing is arranged between the valve rod and the support, and a packing gland is arranged above the packing by a bolt on the support.

The utility model has the advantages of effectively avoiding punching on the bracket, solving the problem that the bracket 2 is easy to deform and break due to the threaded hole of the existing product, improving the strength and the load bearing capacity of the bracket, effectively reducing the volume of a part of the bracket, ensuring that the bracket 2 of some high-pressure oxygen valves is always under high load for a long time, avoiding the punching damage on the bracket 2, along with simple structure, low cost, convenient maintenance, safety, reliability and the like.

Drawings

Fig. 1-4 are schematic structural views of the present invention.

Fig. 5 is an exploded view of the present invention.

Fig. 6 is a partially enlarged view of fig. 2 at a.

Fig. 7 shows an oil control cap structure of a conventional product.

In fig. 1-7, an oxygen valve body 1, a bracket 2, a left side 21, a right side 22, an oil-prohibiting cover 3, a through hole 301, an oil-prohibiting mark 302, an oil-prohibiting pad 4, a sleeve 5, a stud 6, a nut 7, a protective cap 8, a valve stem 9, a hand wheel 10, a sealing pad 101, a packing 11, a packing gland 12, and a threaded hole 13.

Detailed Description

Embodiments of the utility model are further described below with reference to the accompanying drawings:

as shown in fig. 1 to 7, the present embodiment provides an oil cap structure suitable for quick installation of an oxygen valve, which includes an oxygen valve body 1 and a bracket 2, the bracket 2 is arranged above the oxygen valve body 1, the left side 21 and the right side 22 of the bracket 2 are respectively provided with an oil-forbidden cover 3, the left side 21 and the right side 22 of the bracket 2 are both hollow isosceles trapezoids, the external dimension of the oil prohibiting cover 3 arranged on the left side 21 of the bracket 2 is the same as the external dimension of the left side 21 of the bracket 2, the right side 22 of the bracket 2 is provided with the oil prohibiting cover 3 with the same external dimension as the right side 22 of the bracket 2, through holes 301 are formed in the 2 oil forbidden covers 3, the through holes 301 are located in the hollow positions of the left side 21 and the right side 22 of the support 2, and the through holes 301 avoid other parts on the support 2; through-hole 301 of 2 forbidden oil covers 3 is in same axis each other just all install stud 6 in the middle of 2 forbidden oil cover 3's the through-hole 301, stud 6's both ends all stretch out respective forbidden oil cover 3 that corresponds, stud 6's both ends are screwed up and are had nut 7. Screw up through the both ends at stud 6 and have nut 7 to make 2 forbidden oil covers 3 fix the left side 21 and the right side 22 of support 2 to form a relative airtight isolated environment with the inside of support 2, avoid objects such as external grease, combustible substance, dust, granule to get into the inside of support 2, can be better avoid leading to the oxygen valve to go wrong because of external granule gets into, also can be relative isolated when the position in supports 2 such as filler 11 of oxygen valve takes place oxygen leakage simultaneously.

The prior art product on the market is to screw holes 13 on the left 21 and right 22 sides of the bracket 2, as shown in fig. 7. Compared with the existing products in the market, the product of the utility model avoids punching threaded holes on the left side 21 and the right side 22 of the bracket 2, solves the problem that the bracket 2 is easy to deform and break due to the threaded holes in the existing products, can also effectively reduce the volume of a part of the bracket, and avoids the damage of punching the bracket 2 for a long time when the bracket 2 of some high-pressure oxygen valves is purely under high load.

For better installation convenience, the oil control covers 3 are preferably installed between the 2 oil control covers 3 and the left side 21 and the right side 22 of the bracket 2 respectively, and the oil control pads 4 are installed between the two oil control covers. The oil-prohibiting pad 4 can be made of a material with certain elasticity and sealing performance, and the external dimension of the oil-prohibiting pad 4 is correspondingly matched with the left side 21 and the right side 22 of the bracket 2.

Preferably, the number of the through holes 301, the studs 6 and the nuts 7 on the 2 oil prohibiting covers 3 is 4. The oil-prohibiting cover 3 can be effectively fixed on the bracket 2, and the 4 groups of through holes 301, the stud 6 and the nut 7 can be stressed more evenly.

Preferably, the 2 oil-prohibiting covers 3 are made of transparent materials, and the oil-prohibiting pads 4 are made of materials with sealing performance.

Because the oxygen valve is installed and used for safety, it is also avoided that an operator should paint lubricating oil on a common valve when the oxygen valve is maintained, and preferably, the 2 oil-prohibiting covers 3 are all provided with red oil-prohibiting marks 302. Lubricating oil belongs to oil, and once contacting high concentration oxygen and can take place violent burning, if the grease meets pure oxygen and can even explode, take place bigger leakage with the extremely little leakage of oxygen valve under the condition of burning or explosion, cause more serious incident. The red color is more obvious and can be seen by operators more easily.

Preferably, the oil prohibition indicator 302 is formed by spraying paint, the oil prohibition indicator 302 is directly displayed by using an oil prohibition two-character display, and if the oil prohibition indicator is an oxygen valve sold abroad, the oil prohibition indicator 302 can use characters corresponding to the country in which the oil is used, and can even use icons and figures to indicate that all the oil is prohibited. Certainly, the oil prohibition sign 302 can also be integrally formed when the oil prohibition cover 3 is injection-molded, and the oil prohibition sign 302 is directly red, so that the oil prohibition sign is safer without paint spraying.

Because the stud 6 is located the hollow position of support 2, and the forbidden oil lid 3 adopts transparent material, and plastics are the material that the sexual valence relative altitude, are fit for batch production among the transparent material, and forbidden oil lid 3 is relatively thin simultaneously, easy deformation. Preferably, the outer peripheries of the studs 6 are all sleeved with sleeves 5, and the length of each sleeve 5 is 0.1mm-0.5mm shorter than the distance between the 2 oil forbidden caps 3. The sleeve 5 can effectively avoid screwing the screw caps 7 at two ends of the stud 6 too tightly, so that the middle of the oil-forbidden cover 3 is recessed into the inside of the super support 2, meanwhile, the length of the sleeve 5 is 0.1-0.5 mm shorter than the distance between the 2 oil-forbidden covers 3, the oil-forbidden pad 4 can be effectively compressed to seal and prevent the oil-forbidden cover 3 from sliding, and the length of the sleeve 5 is shorter than the distance between the 2 oil-forbidden covers 3, so that the adjustment can be properly made according to the thickness of the oil-forbidden pad 4 and the hardness degree of the material.

In order to prevent the oxygen valve from contacting grease, the oxygen valve and the oil-forbidden cover structure are preferably forbidden to be coated or stuck with oil from the inside and the outside. And the oxygen valve is degreased before assembly and shipment.

Most oxygen valves are manually actuated. Therefore, most oxygen valves are provided with a hand wheel or a worm wheel, so as to prevent dust and impurities from entering the joint of the valve rod 9 and the hand wheel 10 to cause blocking, and even prevent grease from entering the inside of the bracket 2 from the valve rod 9, preferably, the valve rod 9 is penetrated through the middle of the bracket 2, the end of the valve rod 9 extending out of the bracket 2 is connected with the hand wheel 10, and the end of the valve rod 9 extending out of the bracket 2 is provided with a protective cap 8 above the hand wheel 10. The protective cap 8 can effectively cover the joint of the valve rod 9 and the hand wheel 10, and plays a role in relative protection.

Preferably, a sealing gasket 101 is installed between the support 2 and the oxygen valve body 1, a packing 11 is installed between the valve rod 9 and the support 2, and a packing gland 12 is installed on the support 2 above the packing 11 through bolts. The sealing gasket 101, the packing 11 and the packing gland 12 can effectively seal oxygen inside the oxygen valve and leak the oxygen to the outside, and the sealing scheme has the advantages of being simple in structure, low in cost, convenient to maintain, safe, reliable and the like.

The present embodiment should not be construed as limiting the utility model, but any modifications made based on the spirit of the utility model should be within the scope of the utility model.

Claims

1. The utility model provides a forbidden oil lid structure suitable for oxygen valve is installed fast, includes oxygen valve main part (1) and support (2), install in support (2) the top of oxygen valve main part (1), its characterized in that: the oil control device is characterized in that an oil control cover (3) is respectively installed on the left side (21) and the right side (22) of the support (2), the left side (21) and the right side (22) of the support (2) are both hollow isosceles trapezoids, the outer dimension of the oil control cover (3) installed on the left side (21) of the support (2) is the same as that of the left side (21) of the support (2), the outer dimension of the oil control cover (3) installed on the right side (22) of the support (2) is the same as that of the right side (22) of the support (2), through holes (301) are formed in the 2 oil control covers (3), the through holes (301) are located in the hollow positions of the left side (21) and the right side (22) of the support (2), and the through holes (301) avoid other parts on the support (2); through-hole (301) of 2 forbidden oil covers (3) are in same axis each other just stud (6) are all installed in the middle of through-hole (301) of 2 forbidden oil covers (3), stud (6) both ends all stretch out forbidden oil covers (3) that correspond separately, the both ends of stud (6) are screwed up and are had nut (7).

2. The oil forbidden cover structure suitable for the oxygen valve to be installed rapidly according to claim 1, characterized in that: the 2 oil control covers (3) correspond to the left side (21) and the right side (22) of the support (2) respectively, and oil control pads (4) are installed between the left side (21) and the right side (22) of the support.

3. The oil forbidden cover structure suitable for the oxygen valve to be installed rapidly according to claim 2, characterized in that: the number of the through holes (301), the double-end studs (6) and the screw caps (7) on the 2 oil forbidden covers (3) is 4.

4. The oil forbidden cover structure suitable for the oxygen valve to be installed rapidly according to claim 3, characterized in that: the 2 oil-forbidden covers (3) are made of transparent materials, and the oil-forbidden pad (4) is made of materials with sealing performance.

5. The oil forbidden cover structure suitable for the oxygen valve to be installed rapidly according to claim 1, characterized in that: red oil forbidden marks (302) are arranged on the 2 oil forbidden covers (3).

6. The oil forbidden cover structure suitable for the oxygen valve to be installed rapidly according to claim 5, is characterized in that: the oil forbidden marks (302) are formed by spraying paint.

7. The oil forbidden cover structure suitable for the oxygen valve to be installed rapidly according to claim 1, characterized in that: the outer periphery of the stud (6) is sleeved with a sleeve (5), and the length of the sleeve (5) is 0.1-0.5 mm shorter than the distance between the 2 oil-forbidden covers (3).

8. The oil forbidden cover structure suitable for the oxygen valve to be installed rapidly according to claim 1, characterized in that: and oils are prohibited to be coated or adhered on the inner part and the outer part of the oxygen valve and the oil prohibiting cover structure.

9. The oil forbidden cover structure suitable for the oxygen valve to be installed rapidly according to claim 8, wherein: the middle of the support (2) is penetrated with a valve rod (9), the end of the valve rod (9) extending out of the support (2) is connected with a hand wheel (10), and a protective cap (8) is arranged on the end of the valve rod (9) extending out of the support (2) above the hand wheel (10).

10. The oil forbidden cover structure suitable for the oxygen valve to be installed rapidly according to claim 9, wherein: install sealed pad (101) between support (2) and oxygen valve main part (1), install packing (11) between valve rod (9) and support (2), gland (12) are installed through the bolt in support (2) top in packing (11).