CN218408566U - Large-diameter spray-guiding sampling valve - Google Patents

Abstract

The utility model belongs to the technical field of gas sampling. A large-diameter spray-guiding sampling valve comprises a middle rod, a support rod, a connecting rod, a sealing umbrella cover and a sealing ring, wherein a thread section is arranged on the middle rod, and a sampling through hole or a sampling guide pipe is arranged in the middle of the middle rod; a plurality of support rods are uniformly and circumferentially arranged at the top of the middle rod in a hinged mode, a sliding ring and a rotating nut are arranged on the middle rod, the sliding ring is arranged on the middle rod in a sliding mode, and the rotating nut is meshed with the thread section in a matched mode; a connecting rod is arranged between each support rod and the sliding ring; the sealing umbrella cover is arranged on the outer side of the stay bar in a wrapping mode; the sealing ring is arranged on the outer side of the lower end of the sealing umbrella cover, and the upper end of the sealing umbrella cover is connected with the upper end of the middle rod in a sealing mode. This application structural design is reasonable, and the security performance is high, can be applicable to leading of various bores and drench the gas sampling, has solved the irregular analytical error who brings of sample connection for the sample is more representative.

Description

Large-diameter spray-guiding sampling valve

Technical Field

The utility model belongs to the technical field of gaseous sample, concretely relates to heavy-calibre is led and is drenched sample valve.

Background

Because there is not regular sampling point in the mouth that drenches is led to the heavy-calibre, carrying out gas sampling in-process, can meet usually that various are irregular because of the sample connection, lead to the gas sample not to be representative, because of the emergence of the condition such as too big, the personnel injury appear of pressure during the sample. The accuracy of gas sampling is crucial to subsequent product quality control, how to effectively ensure the referability of sampling results and improve the convenience and efficiency of operation is a technical problem to be solved.

Disclosure of Invention

The utility model discloses the purpose is to the problem that above-mentioned exists and not enough, provides a heavy-calibre and leads to drench sample valve, and its structural design is reasonable, and the security performance is high, can be applicable to leading of various bores drenches the gas sampling, has solved the irregular analytical error who brings of sample connection for the sample is more representative.

In order to realize the purpose, the adopted technical scheme is as follows:

a large-diameter pilot shower sampling valve comprises:

the middle rod is provided with a thread section, and the middle part of the middle rod is provided with a sampling through hole or a sampling conduit;

the support rods are uniformly distributed on the circumference and are hinged to the top of the middle rod, a sliding ring and a rotating nut are arranged on the middle rod, the sliding ring is arranged on the middle rod in a sliding mode, and the rotating nut is meshed with the threaded section in a matching mode;

the connecting rod is arranged between the middle part of each support rod and the sliding ring, and two ends of the connecting rod are respectively hinged with the sliding ring and the corresponding support rod;

the sealing umbrella cover is arranged on the outer side of the stay bar in a wrapping mode; and

and the sealing ring is arranged on the outer side of the lower end of the sealing umbrella cover, and the upper end of the sealing umbrella cover is connected with the upper end of the middle rod in a sealing manner.

The setting of king-rod, vaulting pole and connecting rod in this application for the vaulting pole can realize opening and shutting the action, ensures the stability of the action of whole structure under the drive of swivel nut and slip ring, and the setting of sealed umbrella face and sealing washer can make the sample connection obtain effectual sealed, thereby be convenient for take a sample from sample through-hole or sampling pipe, makes the gas sample of sample more accurate, more representative.

According to the utility model discloses heavy-calibre is led and is drenched sampling valve, preferably, the cross-section of sealing washer is the C type the inboard of sealing washer is provided with C type groove, C type inslot is provided with the spring steel band, the length of spring steel band is greater than and leads the girth of drenching the mouth, the lower extreme top brace of vaulting pole is in the inboard of spring steel band.

In order to adapt to higher gas pressure, avoid gas leakage from between sample connection and the sealing washer, the spring steel band that this application set up can effectual improvement sealing washer and the laminating degree of sample connection for holistic sealing performance is better, can not lead to having the phenomenon emergence of seepage between sealing washer and the sample connection because the shoring effort that the sealing washer between vaulting pole and the vaulting pole received is little.

According to the utility model discloses heavy-calibre is led and is drenched sample valve, preferably, the vaulting pole is 8-16.

Through the adjustment of vaulting pole quantity, can carry out effectual adjustment to the supporting effect of sealing washer, can arrange different vaulting pole quantity according to the field of using and the size of atmospheric pressure.

According to the utility model discloses the heavy-calibre is led and is drenched sample valve, preferably, sealed umbrella face is sheetrubber or plastic sheeting. The plastic cloth is preferably adopted, the manufacturing cost is low, the plastic cloth is convenient to replace, and when the transparent plastic cloth is adopted, the internal condition can be observed through the outside in a visual mode, so that the assembly is ensured to be in place, and the subsequent sampling operation is convenient.

According to the utility model discloses the heavy-calibre is led and is drenched sample valve, preferably, swivel nut is butterfly nut. The butterfly nut can be operated manually, so that the overall action is more convenient and efficient.

According to the utility model discloses the heavy-calibre is led and is drenched sample valve, preferably, the sealing washer with form V type groove between the sealed umbrella face. The formation in V type groove can make inside atmospheric pressure just can be to the oppression of sealing washer by the model to make sealing washer and sample connection obtain more effectual sealed.

By adopting the technical scheme, the beneficial effects are as follows:

this application structural design is reasonable, and the security performance is high, can be applicable to leading of various bores and drench the gas sampling, has solved the irregular analytical error who brings of sample connection for the sample is more representative. The utility model provides a low in manufacturing cost, and can reuse, damage the back at sealing washer or umbrella face and conveniently change. This application is convenient and fast when field operation, and the spare part that needs the equipment is less relatively, only needs alone can accomplish holistic sample work, has improved work efficiency greatly.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments of the present invention will be briefly described below. The drawings are intended to depict only some embodiments of the invention, and not all embodiments of the invention are limited thereto.

Fig. 1 is a schematic structural view of a large-caliber pilot-shower sampling valve according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a seal ring according to an embodiment of the present invention.

Number in the figure:

110 is a middle rod, 111 is a sampling pipe, 112 is a threaded section, 120 is a support rod, 130 is a connecting rod, 140 is a sealing umbrella surface, 141 is a V-shaped groove, 151 is a sliding ring, and 152 is a rotating nut;

200 is a sealing ring, 201 is a steel belt.

Detailed Description

The embodiments of the present invention will be described more fully hereinafter with reference to the accompanying drawings, in which embodiments of the invention are shown. Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art.

It should be noted that when an element is referred to as being "connected," "coupled," or "connected" to another element, it can be directly connected, coupled, or connected, but it should be understood that intervening elements may be present therebetween; i.e., positional relationships encompassing both direct and indirect connections.

It should be noted that the use of the terms "a" or "an" and the like do not necessarily denote a limitation of quantity. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items.

It is noted that terms indicating orientation or positional relationship, such as "upper", "lower", "left", "right", and the like, are used only for indicating relative positional relationship, which is for convenience in describing the present invention, and not that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation; when the absolute position of the object to be described changes, the relative positional relationship may also change accordingly.

Referring to fig. 1 and 2, the present application discloses a large-diameter drain sampling valve, which comprises a middle rod 110, a stay rod 120, a connecting rod 130, a sealing umbrella surface 140 and a sealing ring 200, wherein a threaded section 112 is arranged on the middle rod 110, and a sampling through hole or a sampling conduit 111 is arranged in the middle of the middle rod 110; the plurality of support rods 120 are uniformly and circumferentially arranged at the top of the middle rod 110 in a hinged manner, a sliding ring 151 and a rotating nut 152 are arranged on the middle rod 110, the sliding ring 151 is arranged on the middle rod 110 in a sliding manner, the sliding ring can be sleeved on the middle rod, two sliding grooves can also be formed in the middle rod, guide blocks corresponding to the sliding grooves are arranged on the inner wall of the sliding ring, so that the sliding ring can do linear motion relative to the middle rod without doing circumferential rotation, and the rotating nut 152 is meshed with the thread section 112 in a matching manner; a connecting rod 130 is arranged between the middle part of each stay bar 120 and the sliding ring 151, and two ends of the connecting rod 130 are respectively hinged with the sliding ring 151 and the corresponding stay bar 120; the sealing umbrella cover 140 is covered and arranged at the outer side of the stay bar 120; sealing washer 200 sets up the lower extreme outside of sealed umbrella face 140, the upper end of sealed umbrella face 140 and the upper end sealing connection of king-rod 110, when needs vaulting pole and sealed umbrella face open, through the action of drive swivel nut, the top of pushing away the ring of sliding to the king-rod removes, and the connecting rod can drive each vaulting pole this moment and open. At this moment, the sealing washer is laminated with the inner wall of sample connection, and the inboard of sealing washer is propped on the lower part top of vaulting pole to make sealing washer and sealed umbrella face form the shutoff to the sample connection, make gas only can flow out from sample through-hole or sampling pipe, realize that different sample connection types all can realize the gaseous sample of representative sample.

In the above structure, a V-shaped groove 141 may be formed between the sealing ring 200 and the sealing umbrella surface 140. The formation in V type groove can make inside atmospheric pressure can just can be to the oppression of sealing washer by the model to make sealing washer and sample connection obtain more effective sealing.

In order to adapt to higher gas pressure, avoid gas leakage between sample connection and the sealing washer, the spring steel band that this application set up specifically is: the section of the sealing ring 200 is C-shaped, a C-shaped groove is formed in the inner side of the sealing ring 200, a spring steel strip 201 is arranged in the C-shaped groove, the length of the spring steel strip 201 is larger than the perimeter of the guide shower opening, and the lower end of the support rod 120 is supported against the inner side of the spring steel strip 201. The setting of spring steel band can effectual improvement sealing washer and the laminating degree of sample connection for holistic sealing performance is better, can not take place because the shoring effort that the sealing washer between vaulting pole and the vaulting pole received is little and lead to having the phenomenon of seepage between sealing washer and the sample connection.

In practical applications, the number of the support rods 120 may be 8-16, and 12 support rods are preferred in the present application; sealed umbrella face 140 is the sheet rubber or plastic sheeting, and transparent plastic sheeting is preferably adopted in this application, low in manufacturing cost, and be convenient for change, when adopting transparent plastic sheeting, can also pass through the inside condition of outside audio-visual observation to in place is ensured in order to ensure to assemble, convenient subsequent sample operation. Swivel nut 152 is a wing nut. The butterfly nut can be operated manually, so that the overall action is more convenient and efficient.

The working principle of the application is as follows:

the select sample connection of treating the sample, the clearance sample connection, it is clean level and smooth to keep the sample connection inner wall, can paint certain sealed grease according to actual conditions, lead the heavy-calibre that drenches the sample valve and insert the sample connection with this application discloses, treat that the sealing washer is also located the sample connection in the time, through rotatory butterfly nut, make vaulting pole and connecting rod open, and then make the inner wall laminating of sealing washer and sample connection, the laminating condition of inspection sealing washer and sample connection can be pressed through manual, the guarantee laminating is inseparable. In this case, the gas in the sampling port can only flow out through the sampling channel or the sampling pipe, and the sampled gas can be more representative.

While the above description has described in detail the preferred embodiments for carrying out the invention, it should be understood that these embodiments are presented by way of example only, and are not intended to limit the scope, applicability, or configuration of the invention in any way. The scope of the invention is defined by the appended claims and equivalents thereof. Many modifications may be made to the foregoing embodiments by those skilled in the art in light of the teachings of the present disclosure, and such modifications are intended to be within the scope of the present disclosure.

Claims (6)

1. The utility model provides a heavy-calibre leads drenches sampling valve which characterized in that includes:

the middle rod is provided with a thread section, and the middle part of the middle rod is provided with a sampling through hole or a sampling conduit;

the support rods are uniformly and circumferentially arranged at the top of the middle rod in a hinged mode, a sliding ring and a rotating nut are arranged on the middle rod, the sliding ring is arranged on the middle rod in a sliding mode, and the rotating nut is meshed with the thread section in a matching mode;

the connecting rod is arranged between the middle part of each support rod and the sliding ring, and two ends of the connecting rod are respectively hinged with the sliding ring and the corresponding support rod;

the sealing umbrella cover is arranged on the outer side of the stay bar in a wrapping mode; and

and the sealing ring is arranged outside the lower end of the sealing umbrella cover in a sealing manner, and the upper end of the sealing umbrella cover is connected with the upper end of the middle rod in a sealing manner.

2. The large-caliber pilot shower sampling valve according to claim 1, wherein the section of the sealing ring is C-shaped, a C-shaped groove is arranged on the inner side of the sealing ring, a spring steel strip is arranged in the C-shaped groove, the length of the spring steel strip is greater than the perimeter of the pilot shower opening, and the lower end of the stay bar is supported on the inner side of the spring steel strip.

3. The large-caliber drain sampling valve according to claim 1, wherein the number of the stay bars is 8-16.

4. The large-caliber drain and drain sampling valve according to claim 1, wherein the sealing umbrella cover is a rubber sheet or a plastic cloth.

5. The large-caliber pilot shower sampling valve according to claim 1, wherein the rotating nut is a butterfly nut.

6. The large-caliber pilot shower sampling valve according to claim 1, wherein a V-shaped groove is formed between the sealing ring and the sealing umbrella cover.

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