CN219841038U - Integrated insert valve for sampling - Google Patents

Abstract

The utility model discloses an integrated insertion valve for sampling, and belongs to the technical field of sampling valves. The utility model comprises a valve body, a valve rod, a handle and a sealing element, wherein the handle is fixedly arranged at the top of the valve rod, the sealing element is arranged between the valve rod and the inner wall of the valve body, and the gap between the valve rod and the valve body is sealed. The bottom of the valve rod is an inverted cone, the corresponding position of the valve body is provided with an inverted cone-shaped sample discharging port, and the inverted cone is favorable for preventing residues and improving the tightness. The sealing piece is an O-shaped ring support, a first compression block, a compression washer, a compression nut and a second compression block from bottom to top in sequence, the second compression block is provided with an inner ring and an outer ring, the inner ring wraps the valve rod, the outer ring extrudes the inner wall of the valve body, the valve body is simple in integral structure and high in tightness, the bottom of the valve rod and a sample discharge port are designed in an inverted cone shape, residues and pollution are effectively prevented, the tightness is high, a dead sample area for sampling is effectively solved, and the installation space of a sampler is saved.

Description

Integrated insert valve for sampling

Technical Field

The utility model belongs to the technical field of sampling valves, and particularly relates to an integrated insertion valve for sampling.

Background

The existing sampler (sampling valve) is connected by a plurality of valves as shown in fig. 1, and the sampler (sampling valve) has the defects of complex installation, more leakage points, complex operation, more dead sample areas, inconvenience in use, easy sample pollution and inaccuracy. Therefore, the integrated insert valve for sampling is provided, and the problems that an existing sampling valve is complex in structure, high in cost, difficult to operate, easy to pollute, multiple in leakage points and the like are solved.

Disclosure of Invention

The utility model aims to provide an integrated insertion valve for sampling, and aims to solve the problems of complex structure, high cost, difficult operation, easy pollution, multiple leakage points and the like of the existing sampling valve in the background technology. In order to achieve the purpose, the utility model adopts the following technical scheme: an integrated insert valve for sampling comprises a valve body, a valve rod, a handle and a sealing element, wherein the handle is fixedly arranged at the top of the valve rod, the sealing element is arranged between the valve rod and the inner wall of the valve body, and a gap between the valve rod and the valve body is sealed. The bottom of the valve rod is an inverted cone, the corresponding position of the valve body is provided with an inverted cone-shaped sample discharging port, and the inverted cone is favorable for preventing residues and improving the tightness. The sealing piece is an O-shaped ring support, a first compression block, a compression washer, a compression nut and a second compression block from bottom to top in sequence, and the O-shaped ring support is provided with an O-shaped ring for sealing a gap between the O-shaped ring support and the inner wall of the valve body. An inner ring and an outer ring are arranged on the second compression block, the inner ring wraps the valve rod, and the outer ring extrudes the inner wall of the valve body to serve as a final sealing line. The technical scheme has the advantages that the whole structure is simple, the sealing performance is strong, the bottom of the valve rod and the sample discharge port are designed in an inverted cone shape, the residue and pollution are effectively prevented, the sealing performance is strong, the dead sample area of sampling is effectively solved, and the installation space of the sampler is saved; the connection interfaces are reduced, so that leakage points are reduced; and the installation fittings are reduced, and the cost is lowered.

More preferably, an adapter is arranged below the sample discharging port, an adapter gasket is arranged between the adapter and the valve body, and the adapter can be used for installing various sampling bottles.

Furthermore, flanges are arranged at the two ends of the inlet and the outlet of the valve body, so that the valve body can be conveniently and quickly installed on a main pipeline or a branch pipeline for sampling.

Further describing the scheme, the water passing part is arranged above the cone of the valve rod, the diameter of the water passing part is smaller than the inner diameter of the O-shaped ring support, and the design effectively reduces the resistance to fluid in the pipeline and is matched with the O-shaped ring support to realize sealing.

More preferably, the O-shaped ring bracket is provided with two O-shaped rings which are parallel to each other, and the redundant design is adopted, so that the tightness is improved, and the overall service life is further prolonged; the bottom of the O-shaped ring bracket is of a reverse convex design and is matched with the water passing part of the valve rod to realize sealing.

Further, the gland nut is in a reverse convex design, the first gland block is located between the O-shaped ring support and the gland nut, and the upper portion of the first gland block is in a convex design, so that when the valve rod moves up and down, the gap between the valve rod and the valve body is effectively sealed. The O-shaped ring, the compression washer, the inner ring and the outer ring are all made of soft materials.

Compared with the prior art, the utility model integrates the function of the sampler into one valve, saves the installation space and ensures that the sampling has no dead sample area, and the sample is more representative; the whole structure is simple and convenient to install, the cost is effectively reduced, and the market competitiveness of the valve is enhanced; the handle is directly connected with the valve rod, convenient sample, and the leakproofness between valve rod and the valve body is effectively solved through the sealing member simultaneously, and valve rod bottom and the design of stock layout mouth all adopt the back taper, effectively prevent to remain, pollute, and the leakproofness is strong, and the valve rod can be under the liquid effect automatic push down sealed, effective leak protection.

Drawings

FIG. 1 is a schematic diagram of a conventional sampler (sampling valve);

FIG. 2 is a schematic diagram of an embodiment of the present utility model;

FIG. 3 is an exploded view of an embodiment of the present utility model;

FIG. 4 is a schematic diagram of another explosion provided by an embodiment of the present utility model;

fig. 5 is a schematic cross-sectional view of an embodiment of the present utility model.

Wherein, each reference sign in the figure:

1. a handle; 2. a valve body; 21. a sample discharge port; 3. a valve stem; 31. a cone; 32. a water passing part; 4. an adapter; 41. an adapter washer; 5. a seal; 51. an O-ring support; 511. an O-ring; 52. a first compression block; 521. compressing the gasket; 53. a compression nut; 54. a second compression block; 541. an inner ring; 542. an outer ring; 6. and (3) a flange.

Detailed Description

In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. The drawings illustrate preferred embodiments of the utility model. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

The technical scheme of the patent is further described in detail below with reference to the specific embodiments.

Referring to fig. 2-5, the present utility model provides an integrated insert valve for sampling, comprising a valve body 2, a valve rod 3, a handle 1 and a sealing member 5, wherein the handle 1 is fixedly installed on the top of the valve rod 3, the sealing member 5 is installed between the valve rod 3 and the inner wall of the valve body 2, and the gap between the valve rod 3 and the valve body 2 is sealed. The bottom of the valve rod 3 is an inverted cone 31, the corresponding position of the valve body 2 is provided with an inverted cone-shaped sample discharging port 21, and the inverted cone is favorable for preventing residues and improving the tightness. As shown in fig. 4 and 5, the sealing element 5 sequentially comprises an O-ring bracket 51, a first compression block 52, a compression washer 521, a compression nut 53 and a second compression block 54 from bottom to top, wherein two O-rings 511 are arranged on the O-ring bracket 51 for sealing a gap between the O-ring bracket 51 and the inner wall of the valve body 2, and the redundancy design is adopted to improve the tightness and further the overall service life; the bottom of the O-shaped ring bracket 51 is of a reverse convex design, and is matched with the water passing part 32 of the valve rod 3 to realize sealing. As shown in fig. 4 and 5, the second compression block 54 is provided with an inner ring 541 and an outer ring 542, the inner ring 541 wraps the valve rod 3, and the outer ring 542 presses the inner wall of the valve body 2 as the last sealing line. As shown in fig. 2 and 5, an adapter 4 is arranged below the sample outlet 21, an adapter gasket 41 is arranged between the adapter 4 and the valve body 2, and the adapter 4 can be used for installing various sampling bottles. Flanges 6 are arranged at the two ends of the inlet and outlet of the valve body 2, so that the valve body is conveniently and quickly installed on a main pipeline or a branch pipeline for sampling.

As shown in fig. 5, above the cone 31 of the valve rod 3 is a water passing portion 32, the diameter of the water passing portion 32 is smaller than the inner diameter of the O-ring support 51, and the design effectively reduces the resistance to the fluid in the pipeline and simultaneously cooperates with the O-ring support 51 to realize sealing. The compression nut 53 is of an inverted convex design, the first compression block 52 is located between the O-shaped ring support 51 and the compression nut 53, and the convex design is arranged above the first compression block 52, so that when the valve rod 3 moves up and down, the gap between the valve rod 3 and the valve body 2 is effectively sealed. The O-ring 511, the pressing washer 521, the inner ring 541, and the outer ring 542 are all made of soft materials.

The following further illustrates the principles of the present utility model in connection with a mode of use in order to provide a more thorough understanding of the present utility model.

Referring to fig. 4 and 5, two O-rings 511 are mounted on an O-ring support 51 and sleeved in the valve rod 3, and then sleeved in a first compression block 52, a compression washer 521 is mounted above the first compression block 52, and the valve rod 3, the O-ring support 51, the O-rings 511 and the first compression block 52 are put into the valve body 2 together; then the first compression block 52 is tightly abutted with the O-shaped ring bracket 51 through the compression nut 53, and a second compression block 54 with an inner ring 541 and an outer ring 542 is arranged above the compression nut 53, so that the second compression block 54 is tightly connected with the valve body 2; finally, the handle 1 is installed on the top of the valve rod 3, and the corresponding adapter 4 is installed on the discharge port 21. The whole valve is mounted on the main pipe or branch pipe for sampling by means of a flange 6. During sampling, the handle 1 is pulled up, and the liquid in the pipe flows into the discharge port 21 and then flows into the sampler through the adapter 4. It should be noted that, since the bottom of the valve body 2 and the discharge port 21 are designed in a reverse taper shape, the flow rate of the liquid forms a negative pressure at the discharge port 21, so that the valve body 2 automatically drops and seals.

In summary, the utility model has simple integral structure and convenient installation, the handle 1 is directly connected with the valve rod 3, the sampling is convenient, the tightness between the valve rod 3 and the valve body 2 is effectively solved through the sealing piece 5, the bottom of the valve rod 3 and the sample discharging port 21 are both in reverse taper design, the residue and pollution are effectively prevented, the tightness is strong, and the valve rod 3 can be automatically pressed down for sealing under the action of liquid, so that the leakage is effectively prevented.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiments, and the terms "upper," "lower," "left," "right," "front," "back," and the like are used herein with reference to the positional relationship of the drawings.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

The above embodiments are only for illustrating the present utility model, not for limiting the present utility model, and various changes and modifications may be made by one of ordinary skill in the relevant art without departing from the spirit and scope of the present utility model, and therefore, all equivalent technical solutions are also within the scope of the present utility model, and the scope of the present utility model is defined by the claims.

Claims (7)

1. An integral type insert valve for taking a sample, includes valve body (2), valve rod (3), handle (1) and sealing member (5), handle (1) fixed mounting is at the top of valve rod (3), sealing member (5) are installed between valve rod (3) and valve body (2) inner wall, its characterized in that: the bottom of valve rod (3) is cone (31) of back taper, valve body (2) relevant position is equipped with row's of back taper appearance mouth (21), sealing member (5) are O type circle support (51), first clamp block (52), gland washer (521), gland nut (53) and second clamp block (54) from the bottom up in proper order, be equipped with O type circle (511) on O type circle support (51), be equipped with inner circle (541) and outer lane (542) on second clamp block (54), inner circle (541) parcel valve rod (3), outer lane (542) extrusion valve body (2) inner wall.

2. An integrated insert valve for sampling as claimed in claim 1, wherein: an adapter (4) is arranged below the discharge port (21), and an adapter gasket (41) is arranged between the adapter (4) and the valve body (2).

3. An integrated insert valve for sampling as claimed in claim 1, wherein: flanges (6) are arranged at the two ends of the inlet and the outlet of the valve body (2).

4. An integrated insert valve for sampling as claimed in claim 1, wherein: the upper part of the cone (31) of the valve rod (3) is provided with a water passing part (32), and the diameter of the water passing part (32) is smaller than the inner diameter of the O-shaped ring bracket (51).

5. An integrated insert valve for sampling as claimed in claim 1, wherein: the O-shaped ring support (51) is provided with two O-shaped rings (511) which are parallel to each other, and the bottom of the O-shaped ring support (51) is of a reverse convex design.

6. An integrated insert valve for sampling as claimed in claim 5, wherein: the compression nut (53) is of an inverted convex design, the first compression block (52) is located between the O-shaped ring support (51) and the compression nut (53), and the upper portion of the first compression block (52) is of a convex design.

7. An integrated insert valve for sampling according to any one of claims 1 to 6, wherein: the O-shaped ring (511), the pressing washer (521), the inner ring (541) and the outer ring (542) are made of soft materials.