Test rod for detecting vinyl chloride

Abstract

The utility model discloses a test rod for detecting vinyl chloride, which comprises a test rod main body, a test rod connecting part and a test rod contact part, the test rod connecting part is positioned between the test rod main body and the test rod contact part, the outer side wall of the test rod main body is sleeved with a first buffer sleeve in a sliding manner, and a plurality of buffer air holes are formed in the first buffer sleeve. The buffer air holes are filled with inert gas. The upper part of the test rod connecting part is in threaded sleeve connection with a rotary adjusting cap, the lower part of the test plate connecting part is in sliding sleeve connection with a sliding pipe, the bottom end of the rotary adjusting cap is fixedly connected with the top end of the sliding pipe, the outer wall of the sliding pipe is fixedly sleeved with an elastic anti-corrosion sleeve, and the lower end of the elastic anti-corrosion sleeve is in sliding sleeve connection with the outer wall of the test rod contact part; and the outer side wall of the rotary adjusting cap is fixedly sleeved with a second buffer sleeve. According to the utility model, the anti-drop and anti-impact capability of the test rod is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to detection instrument technical field especially relates to a test stick for vinyl chloride detection. BACKGROUND

[0002] The test stick for vinyl chloride detection is a tool for measuring or detecting the concentration of vinyl chloride gas. The inside of the test stick uses specific chemical materials or sensors, which can react when vinyl chloride is present, making the test results visual or measurable.

[0003] At present, the test stick for vinyl chloride detection generally uses glass as the shell material, which can effectively prevent corrosion of vinyl chloride and ensure durability. However, the glass shell has the material property of being easily broken, and once it is bumped or externally impacted, the test stick is easily damaged. Therefore, the test stick for vinyl chloride detection in the prior art has insufficient anti-falling and impact resistance, resulting in poor durability. UTILITY MODEL CONTENT

[0004] In view of the deficiencies in the prior art, the utility model aims to provide a test stick for vinyl chloride detection to improve the anti-falling and impact resistance of the test stick.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a test stick for vinyl chloride detection, comprising an integrally formed test stick main body, a test stick connecting part and a test stick contact part, the test stick connecting part being located between the test stick main body and the test stick contact part, a first buffer sleeve being slidably sleeved on the outer side wall of the test stick main body, a plurality of buffer gas holes being provided inside the first buffer sleeve, and inert gas being filled in the buffer gas holes.

[0006] A rotating adjustment cap is threadedly sleeved on the upper part of the test stick connecting part, a sliding tube is slidably sleeved on the lower part of the test stick connecting part, the bottom end of the rotating adjustment cap abuts against the top end of the sliding tube, an elastic corrosion-proof sleeve is fixedly sleeved on the outer wall of the sliding tube, and the lower end of the elastic corrosion-proof sleeve is slidably sleeved on the outer wall of the test stick contact part.

[0007] A second buffer sleeve is fixedly sleeved on the outer side wall of the rotating adjustment cap.

[0008] When the rotating adjustment cap is rotated forward, the sliding tube is pushed to slide downward, so that the elastic corrosion-proof sleeve is wrapped around the outer wall of the test stick contact part.

[0009] Further, the inside of the first buffer sleeve is a honeycomb net structure, and each buffer gas hole is in the shape of a honeycomb mesh hole.

[0010] Furthermore, a limiting boss is provided between the test rod connecting portion and the test rod contact portion, and an auxiliary spring is provided between the sliding tube and the limiting boss, and the lower end of the auxiliary spring is fixedly connected to the limiting boss;

[0011] When the sliding tube is driven to rotate and slide downward, the auxiliary spring is compressed.

[0012] Furthermore, a flexible washer is provided at the bottom of the sliding tube, and when the sliding tube slides down, the washer abuts against the auxiliary spring.

[0013] Furthermore, a display groove is provided in the first buffer sleeve, and the display groove is located outside the detection display scale of the test rod body.

[0014] Furthermore, anti-slip patterns are provided on the outer side wall of the second buffer sleeve.

[0015] Furthermore, the upper end of the test rod body is provided with a test connector connected to an external test device, the top of the test connector is provided with a rebound boss, a rebound spring is provided between the rebound boss and the first buffer sleeve, the upper end of the rebound spring is fixedly connected to the rebound boss, and the top of the first buffer sleeve is fixedly connected to a sealing sleeve;

[0016] When the rotary adjustment cap rotates in the reverse direction, the first buffer sleeve is driven to rise, thereby pushing the sealing sleeve to slide upward until the sealing sleeve seals the test connector and the external test device.

[0017] Beneficial effects of the utility model:

[0018] The utility model can significantly improve the anti-drop and anti-impact capabilities of the test rod body by arranging a first buffer sleeve on the outside of the test rod body, arranging a plurality of buffer air holes inside the first buffer sleeve, and filling the buffer air holes with buffer gas; at the same time, a rotating adjustment cap and a sliding tube are arranged on the test rod connecting part, and the sliding tube is driven to slide down by the rotation of the rotating adjustment cap, thereby wrapping the elastic anti-corrosion sleeve on the outer wall of the test rod contact part, and realizing elastic anti-drop protection of the test rod contact part by wrapping the elastic anti-corrosion sleeve when not in use; in addition, the anti-drop and anti-impact capabilities of the test rod connecting part are achieved by sleeved with a second buffer sleeve on the outer side wall of the rotating adjustment cap, so that the utility model significantly improves the overall anti-drop and anti-impact capabilities of the test rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a cross-sectional view of the structure of the test rod used for vinyl chloride detection in the utility model;

[0020] Figure 2 It is an enlarged structural diagram of point A in the utility model;

[0021] Figure 3 is the amplification structure schematic diagram of B place in the utility model;

[0022] The drawings are as follows: 1, test rod main body; 2, test rod connecting part; 3, test rod contact part; 4, first buffer sleeve; 41, buffer air hole; 5, rotating adjusting cap; 6, sliding pipe; 7, elastic anticorrosive sleeve; 8, second buffer sleeve; 9, limiting boss; 10, auxiliary spring; 11, flexible gasket; 12, sealing sleeve; 13, test connecting head; 14, rebound boss; 15, rebound spring. DETAILED DESCRIPTION

[0023] The utility model is further explained in detail below in combination with the drawings and examples. Wherein same part is expressed with same reference numerals. It needs to be explained that, the words "front", "back", "left", "right", "upper" and "lower" in the following description refer to the direction in the drawings, and the words "bottom surface" and "top surface", "inner" and "outer" refer to the direction towards or away from the geometric center of a specific part.

[0024] Example 1, refer to Figure 1 , it is the first embodiment of the application, the embodiment provides a kind of test rod for vinyl chloride detection, can realize the anti-impact ability of promotion test rod, including integrally formed test rod main body 1, test rod connecting part 2 and test rod contact part 3, test rod connecting part 2 is located between test rod main body 1 and test rod contact part 3, the outer wall of test rod main body 1 is slidably connected with first buffer sleeve 4, and a plurality of buffer air holes 41 are arranged in the first buffer sleeve 4, and the buffer air holes 41 are filled with inert gas;

[0025] The upper portion of test rod connecting part 2 is threadedly connected with rotating adjusting cap 5, and the lower portion of test rod connecting part is slidably connected with sliding pipe 6. The bottom end of rotating adjusting cap 5 is in abutment with the top end of sliding pipe 6. The outer wall of sliding pipe 6 is fixedly connected with elastic anticorrosive sleeve 7, and the lower end of elastic anticorrosive sleeve 7 is slidably connected to the outer wall of test rod contact part 3.

[0026] The outer wall of rotating adjusting cap 5 is fixedly connected with second buffer sleeve 8.

[0027] When rotating adjusting cap 5 is rotated forward, sliding pipe 6 is pushed to slide downward, so that elastic anticorrosive sleeve 7 is wrapped around the outer wall of test rod contact part 3.

[0028] Specifically, in the present embodiment, the material of first buffer sleeve 4 and second buffer sleeve 8 can be chlorosulfonated polyethylene rubber, which is flexible at room temperature and can prevent corrosion by vinyl chloride. The material of elastic anticorrosive sleeve 7 can be polyvinyl chloride elastic material, which has elasticity and can prevent corrosion by vinyl chloride.

[0029] Working principle of the embodiment 1:

[0030] The embodiment can significantly improve the anti-impact and anti-falling ability of the test rod body 1 by arranging the first buffer sleeve 4 outside the test rod body 1, arranging a plurality of buffer air holes 41 inside the first buffer sleeve 4, and filling the buffer air holes 41 with buffer gas. Meanwhile, the elastic corrosion-proof sleeve 7 can be wrapped on the outer wall of the test rod contact part 3 by arranging the rotating adjusting cap 5 and the sliding tube 6 on the test rod connecting part 2, and driving the sliding tube 6 to slide downward by rotating the rotating adjusting cap 5, so that the test rod contact part 3 can be elastically protected against falling by the elastic corrosion-proof sleeve 7 when not in use. In addition, the anti-impact and anti-falling ability of the test rod connecting part 2 is improved by arranging the second buffer sleeve 8 on the outer wall of the rotating adjusting cap 5, so that the anti-impact and anti-falling ability of the test rod as a whole is significantly improved.

[0031] Preferably, the first buffer sleeve 4 is internally arranged in a honeycomb network structure, and each buffer air hole 41 is in the shape of a honeycomb network hole.

[0032] Specifically, in the embodiment, the honeycomb network structure has higher stability, and the anti-impact and anti-falling performance of the test rod can be further improved by arranging the first buffer sleeve 4 in a honeycomb network structure.

[0033] Embodiment 2, refer to Figure 2 The second embodiment of the present application is different from the previous embodiment in that it provides a limiting boss 9 and an auxiliary spring 10 to assist the sliding tube 6 to rebound. The limiting boss 9 is arranged between the test rod connecting part 2 and the test rod contact part 3, and the auxiliary spring 10 is arranged between the sliding tube 6 and the limiting boss 9. The lower end of the auxiliary spring 10 is fixedly connected to the limiting boss 9.

[0034] Working principle of the embodiment 2:

[0035] When the sliding tube 6 is driven to rotate and slide downward, the auxiliary spring 10 is compressed. At this time, the auxiliary spring 10 accumulates elastic potential energy. When the rotating adjusting cap 5 is reversely rotated, the elastic potential energy accumulated in the auxiliary spring 10 is released, and the sliding tube 6 is assisted to slide upward.

[0036] Preferably, the bottom of the sliding tube 6 is provided with a flexible gasket 11, and the flexible gasket 11 abuts against the auxiliary spring 10 when the sliding tube 6 slides downward.

[0037] Specifically, in the embodiment, the flexible gasket 11 can be made of rubber material. By arranging the flexible gasket 11 at the bottom of the sliding tube 6, the auxiliary spring 10 can be buffered when it is compressed by the sliding tube 6, and the sliding tube 6 can be prevented from being damaged by direct contact with the auxiliary spring 10.

[0038] Preferably, a display groove is formed in the first buffer sleeve 4, and the display groove is located outside the detection display scale of the test rod body 1.

[0039] Specifically, in the embodiment, the display groove is arranged, so that the detection display scale of the test rod body 1 is not blocked, and reading is facilitated.

[0040] Preferably, the outer side wall of the second buffer sleeve 8 is provided with an anti-skid pattern.

[0041] Specifically, in the embodiment, the anti-skid pattern is arranged on the outer side wall of the second buffer sleeve 8, so that the second buffer sleeve 8 is prevented from sliding when the rotating adjustment cap 5 is twisted, and the stability during rotation is improved.

[0042] Embodiment 3, refer to Figure 1 and Figure 3 The third embodiment of the present application is different from the previous embodiment, and the third embodiment provides a sealing sleeve 12, which can seal and block the test connector 13 and the external test device. The upper end of the test rod body 1 is provided with the test connector 13 connected with the external test device. The top end of the test connector 13 is provided with a rebound boss 14. The rebound boss 14 and the first buffer sleeve 4 are provided with a rebound spring 15. The upper end of the rebound spring 15 is fixedly connected with the rebound boss 14. The top end of the first buffer sleeve 4 is fixedly connected with the sealing sleeve 12.

[0043] Working principle of the embodiment 3:

[0044] The sealing sleeve 12 can be made of silica gel material. When the rotating adjustment cap 5 is reversely rotated, the first buffer sleeve 4 is lifted, and the sealing sleeve 12 is pushed to slide upwards until the sealing sleeve 12 blocks the test connector 13 and the external test device, so that the test connector 13 and the external test device are sealed and blocked, and leakage of gas is avoided. The rebound spring 15 is used to assist the first buffer sleeve 4 to rebound downwards when the rotating adjustment cap 5 is forwardly rotated.

[0045] The preferred embodiments of the present application are described above, and the protection scope of the present application is not limited to the above-mentioned embodiments. Any technical solutions falling within the concept of the present application shall be considered as falling within the protection scope of the present application. It should be noted that, for ordinary technical personnel in the technical field, some improvements and decorations without departing from the principle of the present application shall be considered as falling within the protection scope of the present application.

Claims

1. A test stick for vinyl chloride detection, characterized in that: The invention comprises an integrally formed test stick body (1), a test stick connecting portion (2), and a test stick contact portion (3); the test stick connecting portion (2) is located between the test stick body (1) and the test stick contact portion (3); a first buffer sleeve (4) is slidably sleeved on the outer side wall of the test stick body (1); a plurality of buffer pores (41) are provided inside the first buffer sleeve (4); and the buffer pores (41) are filled with an inert gas; The upper part of the test rod connecting part (2) is threadedly sleeved with a rotating adjustment cap (5), and the lower part of the test rod connecting part is slidably sleeved with a sliding tube (6). The bottom end of the rotating adjustment cap (5) is fitted and abutted against the top end of the sliding tube (6). The outer wall of the sliding tube (6) is fixedly sleeved with an elastic anti-corrosion sleeve (7), and the lower end of the elastic anti-corrosion sleeve (7) is slidably sleeved on the outer wall of the test rod contact part (3); A second buffer sleeve (8) is fixedly sleeved on the outer side wall of the rotary adjustment cap (5); When the rotary adjustment cap (5) rotates in the forward direction, the sliding tube (6) is driven to slide down, so that the elastic anti-corrosion sleeve (7) is wrapped around the outer wall of the test rod contact portion (3).

2. The test stick for vinyl chloride detection according to claim 1, characterized in that: The interior of the first buffer sleeve (4) is a honeycomb mesh structure, and each of the buffer pores (41) is in the shape of a honeycomb mesh.

3. The test stick for vinyl chloride detection according to claim 1, characterized in that: A limiting boss (9) is provided between the test rod connecting portion (2) and the test rod contact portion (3), and an auxiliary spring (10) is further provided between the sliding tube (6) and the limiting boss (9), wherein the lower end of the auxiliary spring (10) is fixedly connected to the limiting boss (9); When the sliding tube (6) is driven to rotate and slide downward, the auxiliary spring (10) is compressed.

4. The test stick for vinyl chloride detection according to claim 3, characterized in that: A flexible washer (11) is provided at the bottom of the sliding tube (6). When the sliding tube (6) slides down, the flexible washer (11) abuts against the auxiliary spring (10).

5. The test stick for vinyl chloride detection according to claim 1, characterized in that: A display groove is provided in the first buffer sleeve (4), and the display groove is located outside the detection display scale of the test rod body (1).

6. The test stick for vinyl chloride detection according to claim 1, characterized in that: Anti-slip lines are provided on the outer side wall of the second buffer sleeve (8).

7. The test stick for vinyl chloride detection according to claim 1, characterized in that: The upper end of the test rod body (1) is provided with a test connector (13) connected to an external test device, the top end of the test connector (13) is provided with a rebound boss (14), a rebound spring (15) is provided between the rebound boss (14) and the first buffer sleeve (4), the upper end of the rebound spring (15) is fixedly connected to the rebound boss (14), and the top end of the first buffer sleeve (4) is fixedly connected to a sealing sleeve (12); When the rotary adjustment cap (5) rotates in the reverse direction, it drives the first buffer sleeve (4) to rise, thereby pushing the sealing sleeve (12) to slide upward until the sealing sleeve (12) blocks the test connector (13) and the external test device.

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