Corrosion-resistant CPVC (chlorinated polyvinyl chloride) sampling valve group

Abstract

The utility model relates to the technical field of sampling valves, in particular to a corrosion-resistant CPVC (Chlorinated Polyvinyl Chloride) sampling valve group, which comprises a box body, a bracket fixedly connected to the outer wall of the box body, a liquid storage tank fixedly connected to the bottom surface of the box body, a plurality of double-internal-thread elbows fixedly connected to the outer side wall of the box body, and a sampling valve main body fixedly connected to the bottom ends of the plurality of double-internal-thread elbows, the bottom end of each sampling valve main body is fixedly connected with a valve nozzle, the outer side wall of the box body is connected with a plurality of T-shaped sliding blocks in a sliding manner, and one end of each T-shaped sliding block is provided with a sealing mechanism. And after the valve nozzle is sealed, residual liquid on the valve nozzle can be wiped and adsorbed, and the situation that the residual liquid is sampled during subsequent use, and the accuracy of subsequent detection is affected is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to sampling valve technical field, concretely is a kind of corrosion-resistant CPVC sampling valve group. BACKGROUND

[0002] Sampling valve is the valve for obtaining medium sample in pipeline or equipment, for the occasion needing to frequently carry out chemical analysis to medium sample, in many occasions needing to frequently carry out chemical analysis to medium sample, dedicated sampling valve is used.

[0003] In prior art, such as the patent application number "CN202321240785.0" proposes a kind of multi-valve group sampling valve, the bottom of valve body is fixedly connected with plug mechanism, plug mechanism includes plug, the top of plug is fixedly connected with the middle side of valve body bottom, it has the flow of control medium and filler, ensure unnecessary waste, and ensure that medium is fully reacted and fused and improve the effect of sealing property.

[0004] But in the above patent application, when sampling multiple liquids, it cannot be well connected with multiple pipelines for connecting the liquid to be sampled, and the residual liquid on the valve group cannot be removed, so that when the valve group is used for sampling subsequently, the residual liquid is easily mixed into the new sampling liquid, which affects the accuracy of subsequent sampling detection. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of corrosion-resistant CPVC sampling valve group to solve the problems proposed in the above background art.

[0006] The purpose of the utility model can be realized by the following technical solutions:

[0007] A kind of corrosion-resistant CPVC sampling valve group, including box, the box outer wall is fixedly connected with support, the box bottom is fixedly connected with liquid storage tank, the box outer side wall is fixedly connected with several double internal thread elbows, the bottom of several double internal thread elbows is fixedly connected with sampling valve body, the bottom of sampling valve body is fixedly connected with valve nozzle, the box outer side wall is slidably connected with several T-shaped sliding blocks, the one end of several T-shaped sliding blocks is provided with sealing mechanism, the one end of sampling valve body away from valve nozzle is fixedly connected with external thread straight-through, and the external thread straight-through is fixedly installed in the position of box inner side wall, the one end of external thread straight-through is fixedly connected with internal thread directly, the one end of internal thread directly is fixedly connected with external thread sleeve joint;

[0008] The sealing mechanism includes arc-shaped connecting plate, the arc-shaped connecting plate is fixedly connected at the position of one end of T-shaped sliding block, the outer wall of arc-shaped connecting plate is slidably connected with outer cylinder, the inner portion of outer cylinder is movably installed with inner cylinder, the inner portion of inner cylinder is movably connected with sponge block near upper portion position, the bottom of sponge block is fixedly connected with circular bearing plate.

[0009] Preferably, the inner wall of the inner cylinder is provided with two vertical grooves, and two sliding rods are fixedly installed in the two vertical grooves.

[0010] Preferably, the outer side wall of the sliding block is provided with a slot, a clamping block is inserted in the slot, a clamping groove is formed in the inner wall of the vertical groove close to the position of the clamping block, and the clamping groove is matched with one end of the clamping block.

[0011] Preferably, a supporting spring is sleeved between the outer surface of the sliding rod and the bottom end of the vertical groove.

[0012] Preferably, a push plate is movably installed below the outer cylinder, a connecting shaft is rotatably connected to the upper end surface of the push plate, the upper end of the connecting shaft is fixedly connected to the inner cylinder, a circular plate is fixedly connected to the outer wall of the connecting shaft close to the bottom end, two telescopic rods are fixedly connected to the upper end surface of the circular plate, and the upper ends of the two telescopic rods are fixedly connected to the outer cylinder.

[0013] Preferably, a spiral groove is formed in the outer wall of the inner cylinder, and a movable rod is fixedly connected to the inner wall of the outer cylinder, and one end of the movable rod is movably installed in the spiral groove.

[0014] Preferably, an instrument connector is fixedly connected to the bottom surface of the liquid storage groove.

[0015] The beneficial effects of the utility model are as follows:

[0016] 1. In the utility model, the external thread sleeve connector is connected with the liquid pipeline to be sampled, and the internal thread is directly connected with the external thread throughway and the sampling valve body. Similarly, multiple liquids can be connected with each sampling valve body. When sampling, the corresponding sampling valve body is opened, the liquid flows out through the valve nozzle, and the sampling operation is completed. Compared with the existing sampling method, the sampling valve group can sample the liquid at the concentrated position, which is more convenient.

[0017] 2. The outer cylinder is moved to face the position below the valve nozzle, the sponge block is completely sleeved outside the valve nozzle, the valve nozzle is sealed, the excess liquid is prevented from leaking out, the outer cylinder is moved upward, the movable rod and the spiral groove are matched, the inner cylinder is rotated around the connecting shaft as the central shaft, the sponge block is rotated, the valve nozzle is rotated and wiped, the residual liquid on the valve nozzle is wiped and adsorbed, the residual liquid is prevented from being sampled when the valve nozzle is used again, and the accuracy of subsequent detection is affected. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical schemes in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced as follows. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without any creative effort belong to the scope of the present application.

[0019] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0020] Figure 2 It is a front view of the bracket and the liquid storage tank in the present application.

[0021] Figure 3 It is a sectional view of the bracket and the liquid storage tank in the present application. Figure 2 It is an enlarged view of A in the present application.

[0022] Figure 4 It is a side view of the present application.

[0023] Figure 5 It is a sectional view of the outer cylinder in the present application. Figure 4 It is an enlarged view of B in the present application.

[0024] Figure 6 It is a sectional view of the outer cylinder in the present application.

[0025] Figure 7 It is a sectional view of the inner cylinder and the sponge block in the present application.

[0026] The reference signs in the drawings are as follows:

[0027] 1, double internal thread elbow; 2, sampling valve body; 3, liquid storage tank; 4, bracket; 5, outer cylinder; 6, instrument joint; 7, box body; 8, external thread straight through; 9, internal thread directly; 10, external thread sleeve joint; 11, valve nozzle; 12, inner cylinder; 13, sponge block; 14, circular bearing plate; 15, sliding rod; 16, sliding block; 17, clamping block; 18, arc-shaped connecting plate; 19, T-shaped sliding block; 20, spiral groove; 21, connecting shaft; 22, push plate; 24, telescopic rod; 25, movable rod. DETAILED DESCRIPTION

[0028] The technical schemes in the embodiments of the present application will be described clearly and completely in combination with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without any creative effort belong to the scope of the present application.

[0029] A kind of corrosion-resistant CPVC sampling valve group, such as Figures 1-7As shown, including the box 7, the box 7 outer wall fixedly connected with the support 4, the box 7 bottom surface fixedly connected with the liquid storage tank 3, the box 7 outer wall fixedly connected with a plurality of double inner thread elbow 1, a plurality of double inner thread elbow 1 bottom end is fixedly connected with the sampling valve body 2, the sampling valve body 2 bottom end fixedly connected with the valve nozzle 11, the box 7 outer wall is slidably connected with a plurality of T-shaped sliding block 19, a plurality of T-shaped sliding block 19 one end is provided with sealing mechanism, the sampling valve body 2 away from the valve nozzle 11 one end fixedly connected with the outer thread straight through 8, and the outer thread straight through 8 is fixedly installed in the inner side wall position of the box 7, the outer thread straight through 8 one end fixedly connected with the inner thread directly 9, the inner thread directly 9 one end fixedly connected with the outer thread sleeve joint 10, the sealing mechanism includes arc-shaped connecting plate 18, the arc-shaped connecting plate 18 is fixedly connected in the T-shaped sliding block 19 one end position, the arc-shaped connecting plate 18 inner wall is slidably connected with the outer cylinder 5, the outer cylinder 5 is movably mounted with the inner cylinder 12, the inner cylinder 12 is movably connected with the sponge block 13 in the inner part near the upper part position, the sponge block 13 bottom surface fixedly connected with the circular bearing plate 14.

[0030] The liquid storage tank 3 bottom surface fixedly connected with the instrument joint 6, the material of the sampling valve body 2 is CPVC, has good corrosion resistance.

[0031] In use, the outer thread sleeve joint 10 is connected with the liquid pipeline to be sampled, and the inner thread directly 9 and the outer thread straight through 8 are connected with the sampling valve body 2, and the same can be connected with each sampling valve body 2, when sampling, only the corresponding sampling valve body 2 is opened, so that the liquid flows out through the valve nozzle 11, that is, the sampling operation can be carried out, compared with the existing sampling work of the liquid distributed to each position, the sampling valve group can concentrate the sampling position of the liquid, so that the sampling is more convenient;

[0032] The liquid storage tank 3 can store the sampling liquid, which can be connected with the external detection equipment through the instrument joint 6, and the liquid can be detected, the support 4 plays a supporting role for the box 7.

[0033] Two vertical grooves are arranged on the inner wall of the inner cylinder 12, and two sliding rods 15 are fixedly installed in the two vertical grooves. Two sliding blocks 16 are sleeved on the outer sides of the two sliding rods 15, and one end of each of the two sliding blocks 16 is fixedly connected with the circular bearing plate 14. An insertion groove is arranged on the outer lateral wall of the sliding block 16, and a clamping block 17 is inserted in the insertion groove. A clamping groove is arranged on the inner wall of the vertical groove near the position of one end of the clamping block 17, and the clamping groove is matched with one end of the clamping block 17. A return spring is installed between one end of the clamping block 17 and the inner wall of the vertical groove. A supporting spring is sleeved on the outer side of the sliding rod 15 and between the bottom surface of the sliding block 16 and the bottom end of the vertical groove. One end of the clamping block 17 is clamped in the clamping groove, so as to limit the position between the sliding block 16 and the vertical groove. In combination with the supporting spring, the position of the circular bearing plate 14 and the sponge block 13 can be well limited. When the circular bearing plate 14 is subsequently moved upward, the sliding block 16 can be driven to move upward in the vertical groove along the sliding rod 15, and the clamping block 17 moves upward together with the sliding block 16. The outer walls of one end of the clamping block 17 are inclined surfaces, which can be gradually moved out of the clamping groove and moved into the movable groove under the driving of the sliding block 16 and be extruded, so as to release the limitation of the sliding block 16. Meanwhile, the upper end of the supporting spring is fixedly connected with the sliding block 16, and the supporting spring will be stretched when the sliding block 16 moves upward. When the sponge block 13 is subsequently reset, the springback of the supporting spring and the limitation of the clamping block 17 and the clamping groove can assist the circular bearing plate 14 and the sponge block 13 to be well reset.

[0034] A push plate 22 is movably installed below the outer cylinder 5. A connecting shaft 21 is rotatably connected to the upper end surface of the push plate 22. The upper end of the connecting shaft 21 is fixedly connected with the inner cylinder 12. A circular plate is fixedly connected to the outer wall of the connecting shaft 21 near the bottom end. Two telescopic rods 24 are fixedly connected to the upper end surface of the circular plate. The upper ends of the two telescopic rods 24 are fixedly connected with the outer cylinder 5. A spiral groove 20 is arranged on the outer wall of the inner cylinder 12. An activity rod 25 is fixedly connected to the inner wall of the outer cylinder 5, and one end of the activity rod 25 is movably installed in the spiral groove 20. The telescopic rods 24 limit the moving position of the outer cylinder 5, so that the outer cylinder 5 can be stably vertically moved. When the outer cylinder 5 is moved upward, the push plate 22 can be supported, and the position of the push plate 22 is fixed. Under the action of the friction force between the outer cylinder 5 and the sampling valve body 2, the outer cylinder 5 is tightly sleeved on the sampling valve body 2, and the sampling valve body 2 is further sealed.

[0035] Specifically, after the sampling valve body 2 is used to sample the liquid, the outer cylinder 5 can be moved by the T-shaped sliding block 19 so that the outer cylinder 5 is directly opposite the position below the valve nozzle 11, then the sponge block 13 is moved upward, the circular bearing plate 14 is moved upward with the sponge block 13, the two sliding blocks 16 are moved along the outside of the two sliding rods 15 respectively, until the sponge block 13 is completely sleeved outside the valve nozzle 11, the valve nozzle 11 can be sealed, so that the excess liquid is prevented from leaking out, the outer cylinder 5 is moved upward, one end of the movable rod 25 is moved upward with the outer cylinder 5, the other end of the movable rod 25 is moved along the inside of the spiral groove 20, the inner cylinder 12 can be rotated around the connecting shaft 21 as the center shaft, so that the sponge block 13 is rotated, the valve nozzle 11 is rotated and wiped, the liquid remaining on the valve nozzle 11 is wiped and adsorbed, so that the liquid remaining on the valve nozzle 11 is prevented from being sampled when the valve nozzle 11 is used again, and the accuracy of subsequent detection is affected.

[0036] The basic principle, main features and advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principle of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed.

Claims

1. A corrosion resistant CPVC sampling valve block comprising a housing (7) characterised in that, The outer wall of the box (7) is fixedly connected with a support (4), the bottom surface of the box (7) is fixedly connected with a liquid storage tank (3), the outer side wall of the box (7) is fixedly connected with a plurality of double inner wire elbows (1), the bottom ends of the plurality of double inner wire elbows (1) are fixedly connected with sampling valve bodies (2), the bottom end of the sampling valve body (2) is fixedly connected with a valve nozzle (11), the outer side wall of the box (7) is slidably connected with a plurality of T-shaped sliding blocks (19), one end of each of the plurality of T-shaped sliding blocks (19) is provided with a sealing mechanism, the end of the sampling valve body (2) away from the valve nozzle (11) is fixedly connected with an outer wire straight-through (8), and the outer wire straight-through (8) is fixedly installed on the inner side wall of the box (7), one end of the outer wire straight-through (8) is fixedly connected with an inner wire direct (9), and one end of the inner wire direct (9) is fixedly connected with an outer wire sleeve joint (10). The sealing mechanism comprises an arc-shaped connecting plate (18), the arc-shaped connecting plate (18) is fixedly connected at one end of the T-shaped sliding block (19), the inner wall of the arc-shaped connecting plate (18) is slidably connected with an outer cylinder (5), the inner wall of the outer cylinder (5) is movably connected with an inner cylinder (12), the inner cylinder (12) is movably connected with a sponge block (13) near the upper portion of the inner cylinder (12), and the bottom surface of the sponge block (13) is fixedly connected with a circular bearing plate (14).

2. A corrosion-resistant CPVC sampling valve train according to claim 1, wherein, Two vertical grooves are formed in the inner wall of the inner cylinder (12), and a sliding rod (15) is fixedly installed in each of the two vertical grooves.

3. A corrosion-resistant CPVC sampling valve train according to claim 2, wherein, A slot is formed in the outer side wall of the sliding block (16), a clamping block (17) is inserted into the slot, a clamping groove is formed in the inner wall of the vertical groove near the end of the clamping block (17), and the end of the clamping block (17) is matched with the clamping groove.

4. A corrosion-resistant CPVC sampling valve train according to claim 2, wherein, A reset spring is installed between the end of the clamping block (17) and the inner wall of the movable groove.

5. A corrosion-resistant CPVC sampling valve train according to claim 1, wherein, A supporting spring is sleeved between the bottom surface of the sliding block (16) and the inner bottom end of the vertical groove.

6. A corrosion-resistant CPVC sampling valve train according to claim 1, wherein, A push plate (22) is movably installed below the outer cylinder (5), a connecting shaft (21) is rotatably connected to the upper end surface of the push plate (22), the upper end of the connecting shaft (21) is fixedly connected with the inner cylinder (12), a circular plate is fixedly connected to the outer wall of the connecting shaft (21) near the bottom end, two extension rods (24) are fixedly connected to the upper end surface of the circular plate, and the upper ends of the two extension rods (24) are fixedly connected with the outer cylinder (5).

7. A corrosion-resistant CPVC sampling valve train according to claim 1, wherein A spiral groove (20) is formed in the outer wall of the inner cylinder (12), and a movable rod (25) is fixedly connected to the inner wall of the outer cylinder (5), and one end of the movable rod (25) is movably installed in the spiral groove (20). An instrument joint (6) is fixedly connected to the bottom surface of the liquid storage tank (3).

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