Safety thread sampling valve
By designing a threaded sleeve and a worm gear mechanism driven by a handwheel, the problems of fluid leakage and unstable valve core movement during the use of the threaded sampling valve were solved, thus achieving the safety and stability of the safety-type threaded sampling valve.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-16
- Publication Date
- 2026-03-24
AI Technical Summary
Existing threaded sampling valves pose safety hazards such as fluid leakage and unstable valve core movement during use, and do not have a self-locking function.
A safety-type threaded sampling valve was designed, which achieves stable movement of the valve core through a worm gear mechanism driven by a threaded sleeve and a handwheel, and prevents fluid leakage through a sealing structure.
It effectively prevents fluid leakage during the sampling process, improves operational safety and the practicality of the device, and enhances the stability and sealing of the valve core.
Smart Images
Figure CN224033214U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to fluid sampling equipment technical field especially relates to a safe screw sampling valve. BACKGROUND
[0002] In the industrial production process of chemical industry, petroleum, pharmacy, etc., it is often necessary to sample and analyze the fluid in the pipeline to monitor the production process or detect the product quality.
[0003] The existing screw sampling valve has some safety hazards in the use process, for example, fluid leakage may occur in the sampling process, which not only pollutes the environment, but also may threaten the safety of the operator, and does not have the function of self-locking, the flow rate pressure in the valve body is too large, which may cause the movement of the valve core, therefore, the utility model provides a safe screw sampling valve to solve the problem. UTILITY MODEL CONTENTS
[0004] The utility model discloses a safe screw sampling valve to solve the problem in the background art.
[0005] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:
[0006] A safe screw sampling valve, comprising a valve body, a connecting pipe is fixedly connected to the right side of the valve body, a threaded sleeve is rotatably connected to the outer side of the connecting pipe, a cylinder is arranged on the right side of the connecting pipe, a support seat is fixedly installed on the top of the valve body, a lead screw is rotatably connected to the top of the inner cavity of the support seat, a worm wheel is fixedly sleeved on the top of the outer side of the lead screw, a worm is rotatably connected to the right side of the inner cavity of the support seat and matched with the worm wheel, the bottom of the lead screw is movably penetrated through the support seat and extends into the inner cavity of the valve body, a moving frame is screwed on the bottom of the outer side of the lead screw, and a valve core is fixedly installed on the bottom of the moving frame.
[0007] Preferably, plug rods are fixedly installed on the top and bottom of the right side of the connecting pipe, sealing pads are fixedly sleeved on the outer side of the plug rods, the left side of the sealing pad is fixedly connected with the right side of the connecting pipe, the right side of the plug rod extends into the inside of the cylinder, and the outer side of the cylinder is in threaded contact with the inner wall of the threaded sleeve.
[0008] Preferably, a hand wheel is movably penetrated through the support seat and fixedly connected to the left side of the worm, limit rods are fixedly installed on the left and right sides of the top of the inner cavity of the valve body, the bottom of the limit rod is movably penetrated through the moving frame, and the outer side of the limit rod is in sliding contact with the inside of the moving frame.
[0009] Preferably, a first ring-shaped ring is fixedly installed on the outer side of the top of the valve core, a second ring-shaped ring is fixedly installed on the outer side of the bottom of the valve core, and the outer sides of the first ring-shaped ring and the second ring-shaped ring are in contact with the inner wall of the valve body.
[0010] Preferably, the left side of the valve body is provided with a positioning bolt, the right side of the outer side of the positioning bolt is fixedly sleeved with a third ring type ring, and the right side of the positioning bolt is threadedly extended to the inside of the valve body.
[0011] Preferably, the bottom of the outer side of the valve body is fixedly sleeved with a fourth ring type ring, and the bottom of the outer side of the valve body is provided with an external thread matched with an external device.
[0012] Compared with the prior art, the utility model has the beneficial effects that:
[0013] 1、 the utility model discloses a right -hand thread sleeve, and the threaded sleeve drives the relative screwing cylinder to move to the right side, and the insertion rod is away from the cylinder, then the cylinder is removed, and the container is put into the cylinder, and the cylinder is reset through the reverse threaded sleeve, avoids the leakage of raw materials in the sampling process, and improves the working convenience of staff.
[0014] 2、 the utility model discloses a right -hand thread sleeve, and the threaded sleeve drives the relative screwing cylinder to move to the right side, and the insertion rod is away from the cylinder, then the cylinder is removed, and the container is put into the cylinder, and the cylinder is reset through the reverse threaded sleeve, avoids the leakage of raw materials in the sampling process, and improves the working convenience of staff. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is a three-dimensional structure schematic diagram of a safe thread sampling valve provided by the utility model;
[0016] Figure 2 It is a bottom view sectional structure drawing of a safe thread sampling valve provided by the utility model;
[0017] Figure 3 It is Figure 2 A partial enlarged view of part A.
[0018] In the drawing: 1, valve body;2, support seat;3, connecting pipe;4, cylinder;5, threaded sleeve;6, insertion rod;7, sealing gasket;8, lead screw;9, worm wheel;10, worm;11, hand wheel;12, moving frame;13, valve core;14, first ring type ring;15, second ring type ring;16, positioning bolt;17, third ring type ring;18, fourth ring type ring;19, external thread;20, limit rod. DETAILED DESCRIPTION
[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.
[0020] Referring to Figures 1-3 A safe threaded sampling valve, including a valve body 1, the right side of valve body 1 is fixedly connected with a connecting pipe 3, the outer side of connecting pipe 3 is rotatably connected with a threaded sleeve 5, the right side of connecting pipe 3 is provided with a cylinder 4, the top of valve body 1 is fixedly installed with a support seat 2, the top of the inner cavity of support seat 2 is rotatably connected with a lead screw 8, the top of the outer side of lead screw 8 is fixedly sleeved with a worm wheel 9, the right side of the inner cavity of support seat 2 is rotatably connected with a worm gear 10 matched with worm wheel 9, the bottom of lead screw 8 is movably penetrated through support seat 2 and extends into the inner cavity of valve body 1, the bottom of the outer side of lead screw 8 is screwed with a moving frame 12, the bottom of moving frame 12 is fixedly installed with a valve core 13.
[0021] In this embodiment, the top and bottom of the right side of connecting pipe 3 are both fixedly installed with a plug rod 6, the outer side of plug rod 6 is fixedly sleeved with a sealing gasket 7, the left side of sealing gasket 7 is fixedly connected with the right side of connecting pipe 3, the right side of plug rod 6 extends into the inside of cylinder 4, the outer side of cylinder 4 is in threaded contact with the inner wall of threaded sleeve 5, the left side of worm gear 10 is movably penetrated through support seat 2 and is fixedly connected with a hand wheel 11, the left and right sides of the top of the inner cavity of valve body 1 are both fixedly installed with a limiting rod 20, the bottom of limiting rod 20 movably penetrates through moving frame 12, the outer side of limiting rod 20 is in sliding contact with the inside of moving frame 12, through limiting rod 20, the moving frame 12 can be limited, and the stability of the up and down movement of moving frame 12 is improved.
[0022] In this embodiment, the outer side of the top of valve core 13 is fixedly installed with a first ring-shaped ring 14, the outer side of the bottom of valve core 13 is fixedly installed with a second ring-shaped ring 15, the outer sides of first ring-shaped ring 14 and second ring-shaped ring 15 are both in contact with the inner wall of valve body 1, the left side of valve body 1 is provided with a positioning bolt 16, the right side of the outer side of positioning bolt 16 is fixedly sleeved with a third ring-shaped ring 17, the right side of positioning bolt 16 is threadedly extended into the inside of valve body 1, the bottom of the outer side of valve body 1 is fixedly sleeved with a fourth ring-shaped ring 18, the bottom of the outer side of valve body 1 is provided with an external thread 19 matched with an external device, through the mutual cooperation of first ring-shaped ring 14, second ring-shaped ring 15, third ring-shaped ring 17 and fourth ring-shaped ring 18, the sealing performance of the inner cavity of valve body 1 is improved.
[0023] In this embodiment, in use, valve body 1 is fixedly installed on an external device through the external thread 19 at the bottom of valve body 1, threaded sleeve 5 is turned clockwise, threaded sleeve 5 drives cylinder 4 screwed therewith to move rightward, plug rod 6 is away from cylinder 4, then cylinder 4 is removed, a container is put into cylinder 4, cylinder 4 is reset through counterclockwise rotation of threaded sleeve 5, hand wheel 11 is turned clockwise, hand wheel 11 drives worm gear 10 to rotate, worm gear 10 drives worm wheel 9 matched therewith to rotate, worm wheel 9 drives lead screw 8 to rotate, lead screw 8 drives moving frame 12 screwed therewith to move upward, moving frame 12 drives valve core 13 to move upward, sampling can be performed, after sampling is completed, valve core 13 is reset, then the container is taken out by opening cylinder 4.
[0024] The above has carried out the detailed introduction to the safety type thread sampling valve provided by the utility model. The principle and implementation mode of the utility model are described in the text by applying specific examples, and the above example description is only used for helping to understand the method and core idea of the utility model. It should be pointed out that, for ordinary skilled person in the art, without departing from the principle of the utility model, the utility model can be improved and modified in several ways, and these improvements and modifications also fall within the protection scope of the utility model claim.
Claims
1. A safety type threaded sampling valve comprising a valve body (1), characterized in that: The right side of the valve body (1) is fixedly connected with a connecting pipe (3), the outer side of the connecting pipe (3) is rotatably connected with a threaded sleeve (5), the right side of the connecting pipe (3) is provided with a cylinder (4), the top of the valve body (1) is fixedly installed with a supporting seat (2), the top of the inner cavity of the supporting seat (2) is rotatably connected with a lead screw (8), the top of the outer side of the lead screw (8) is fixedly sleeved with a worm wheel (9), the right side of the inner cavity of the supporting seat (2) is rotatably connected with a worm (10) matched with the worm wheel (9), the bottom of the lead screw (8) is movably penetrated through the supporting seat (2) and extends into the inner cavity of the valve body (1), the bottom of the outer side of the lead screw (8) is screwed with a moving frame (12), and the bottom of the moving frame (12) is fixedly installed with a valve core (13).
2. A safety thread sampling valve according to claim 1, characterized in that: The top and bottom of the right side of the connecting pipe (3) are fixedly installed with a plug rod (6), the outer side of the plug rod (6) is fixedly sleeved with a sealing gasket (7), the left side of the sealing gasket (7) is fixedly connected with the right side of the connecting pipe (3), the right side of the plug rod (6) extends into the inside of the cylinder (4), and the outer side of the cylinder (4) is in threaded contact with the inner wall of the threaded sleeve (5).
3. A safety thread sampling valve according to claim 1, characterized in that: The left side of the worm (10) is movably penetrated through the supporting seat (2) and is fixedly connected with a hand wheel (11), the left and right sides of the top of the inner cavity of the valve body (1) are fixedly installed with a limiting rod (20), the bottom of the limiting rod (20) is movably penetrated through the moving frame (12), and the outer side of the limiting rod (20) is in sliding contact with the inside of the moving frame (12).
4. A safety thread sampling valve according to claim 1, characterized in that: The outer side of the top of the valve core (13) is fixedly installed with a first ring-shaped ring (14), the outer side of the bottom of the valve core (13) is fixedly installed with a second ring-shaped ring (15), and the outer sides of the first ring-shaped ring (14) and the second ring-shaped ring (15) are in contact with the inner wall of the valve body (1).
5. A safety thread sampling valve according to claim 1, characterized in that: The left side of the valve body (1) is provided with a positioning bolt (16), the right side of the outer side of the positioning bolt (16) is fixedly sleeved with a third ring-shaped ring (17), and the right side of the positioning bolt (16) is threadedly extended into the inside of the valve body (1).
6. A safety thread sampling valve according to claim 1, characterized in that: The bottom of the outer side of the valve body (1) is fixedly sleeved with a fourth ring-shaped ring (18), and the bottom of the outer side of the valve body (1) is provided with an external thread (19) matched with an external device.