Water quality sample tube capable of being stored in sealing manner

Abstract

The utility model provides a water quality sample tube capable of sealed preservation, which comprises a tube body and a sealing assembly, a tube cap used for being screwed with the tube body is arranged above the tube body, the sealing assembly used for sealing the tube body is arranged in the tube cap, the sealing assembly comprises a threaded rod used for being connected with a sealing block, and a knob is arranged at the top of the threaded rod. Compared with the prior art, the sealing device has the advantages that the sealing assembly is arranged and comprises the threaded rod used for being connected with the sealing block, after the pipe cap and the pipe body are screwed, the upper portion of the inner side of the pipe cap abuts against the top of the first sealing ring on the top of the screwing opening to achieve the first sealing effect, and the rotary knob drives the threaded rod to be in threaded connection with the screwing hole; the sealing block is pushed to move downwards along the top of the screwing opening, and the sealing block is of an inverted trapezoidal structure, so that the curved side face of the sealing block is gradually and tightly extruded with the inner wall of the screwing opening to form second sealing, and the final effect is that the sealing performance of the pipe body is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to water quality detection technical field, especially relate to a water quality sample tube of sealable preservation. BACKGROUND

[0002] Water quality sample tube is used for collecting, storing and transporting the special container of water sample, is widely used in environmental monitoring, water quality analysis, scientific research etc. It ensures that the collected water sample can accurately reflect the real situation of water source, avoids being polluted by outside world or happening physical and chemical change after collecting, the existing water quality sample tube generally adopts sealing ring and screw cap to seal the pipe body, this design can guarantee the sealing property of pipe body when at rest, and simple operation, but still may leak or gas exchange during long time preservation or transportation, especially when need to go out for work, the sample tube can be loose due to the shaking of screw cap, lead to water from the gap leakage, affect the integrity and accuracy of sample, therefore a new structure is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0003] In view of the deficiencies in the prior art, the utility model aims at providing a water quality sample tube of sealable preservation to solve the problems in the background art.

[0004] The utility model discloses the following technical scheme realizes: a water quality sample tube of sealable preservation, include: pipe body and sealing assembly, the pipe body top is equipped with the pipe cap for and the pipe body rotation joint, the sealing assembly is installed in the pipe cap inside for the sealing of pipe body;

[0005] The sealing assembly includes a threaded rod for connecting a sealing block, and the threaded rod top is equipped with the knob.

[0006] As a preferred implementation, the pipe body top is provided with a screw joint, the screw joint outer side is provided with a thread, and the screw joint top is glued with a sealing ring one.

[0007] As a preferred implementation, the inner screw groove one is matched with the specification of the thread one, and the radius length of the pipe cap inner side is matched with the radius length of the screw joint, so that the sealing ring one top of the screw joint top is tightly abutted with the pipe cap inner side, thereby forming the first resealing.

[0008] As a preferred implementation, the screw joint top central place is formed with a screw joint hole downwardly penetrating, the inner screw groove two is formed in the screw joint hole inner side, and the sealing ring two is glued on the screw joint hole top outer side.

[0009] As a preferred implementation, the radius of the threaded hole matches the radius of the threaded rod, and the depth of the threaded hole matches the length of the threaded rod.

[0010] As a preferred implementation, the threaded rod is externally provided with a thread matching the internal thread, the top of the threaded rod is glued to the center of the bottom of the knob, and the bottom of the threaded rod is glued to the center of the top of the sealing block.

[0011] As a preferred implementation, the sealing block is made of flexible rubber, and the radius of the bottom of the sealing block matches the radius of the inner side of the pipe body.

[0012] As a preferred implementation, the sealing block is in an inverted trapezoidal structure, the radius of the bottom of the sealing block is smaller than the radius of the top of the sealing block, and a water separation film is glued to the outer side of the sealing block to separate the sealing block from the water sample and prevent the sealing block made of high-density rubber from affecting the water sample.

[0013] After the above technical solutions are adopted, the beneficial effects of the present application are as follows: 1. By setting the threaded interface, the cap, and the sealing ring one, the bottom of the cap is inserted into the top of the pipe body, and the cap is rotated to threadedly connect the threaded interface of the top of the pipe body with the upper inner side of the cap. During the threading process, the pipe body moves towards the upper inner side of the cap, and the top of the sealing ring one glued to the top of the threaded interface abuts against the upper inner side of the cap, so that the cap is threaded on the top of the pipe body. At this time, the sealing ring one abuts against the upper inner side of the cap to form a first resealing, thereby achieving a sealing effect on the water sample in the pipe body.

[0014] 2. By setting the sealing assembly, the sealing assembly includes a threaded rod for connecting the sealing block. After the cap and the pipe body are threaded, the bottom of the sealing block is inside the threaded interface. At this time, the knob at the top of the threaded rod is rotated to threadedly connect the threaded rod with the threaded hole in the center of the top of the cap. As the threaded rod is threadedly connected with the threaded hole, the threaded rod moves downward and pushes the sealing block to move downward along the top of the threaded interface. Since the sealing block is in an inverted trapezoidal structure, as the sealing block moves downward, the curved side of the sealing block gradually tightly abuts against the inner wall of the threaded interface. When the bottom of the knob abuts against the top of the cap, the sealing ring two glued to the outside of the threaded hole abuts against the top of the knob, thereby forming a second resealing. Ultimately, the sealing performance of the pipe body is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings described below are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0016] Figure 1 It is a schematic view of the water quality sample tube of the present application which can be sealed and stored.

[0017] Figure 2 It is a structural schematic view of the tube body in the water quality sample tube of the present application which can be sealed and stored.

[0018] Figure 3 It is a sectional view of the tube cap in the water quality sample tube of the present application which can be sealed and stored.

[0019] Figure 4 It is a structural schematic view of the sealing assembly in the water quality sample tube of the present application which can be sealed and stored.

[0020] In the figure, 100-tube body, 110-rotary joint, 111-sealing ring one;

[0021] 200-tube cap, 210-rotary joint hole, 211-sealing ring two;

[0022] 300-sealing assembly, 310-rotary knob, 320-threaded rod, 330-sealing block. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0024] Please refer to Figures 1 to 4 A water quality sample tube which can be sealed and stored, comprising: a tube body 100 and a sealing assembly 300, a tube cap 200 for rotary joint with the tube body 100 is arranged above the tube body 100, the sealing assembly 300 for sealing the tube body 100 is installed inside the tube cap 200;

[0025] The sealing assembly 300 comprises a threaded rod 320 for connecting the sealing block 330, and the rotary knob 310 is arranged on the top of the threaded rod 320.

[0026] The top of the pipe body 100 is provided with a screw joint 110, the outer side of the screw joint 110 is provided with a thread 1, and the top of the screw joint 110 is glued with a sealing ring 1 111.

[0027] An inner screw groove 1 is formed on the upper side of the inner side of the pipe cap 200, the specification of the inner screw groove 1 matches that of the thread 1, the radius length of the inner side of the pipe cap 200 matches that of the screw joint 110, and after the inner side of the pipe cap 200 is screwed with the outer side of the screw joint 110, the top of the sealing ring 1 111 on the top of the screw joint 110 tightly abuts against the upper side of the inner side of the pipe cap 200, so that the first resealing is formed.

[0028] A screw joint hole 210 is formed in the top center of the pipe cap 200, an inner screw groove 2 is formed on the inner side of the screw joint hole 210, and a sealing ring 2 211 is glued on the outer side of the top of the screw joint hole 210.

[0029] The radius length of the screw joint hole 210 matches that of the threaded rod 320, and the depth of the screw joint hole 210 matches the length of the threaded rod 320.

[0030] The outer side of the threaded rod 320 is provided with a thread 2 matching the specification of the inner screw groove 2, the top of the threaded rod 320 is glued with the bottom center of the knob 310, and the bottom of the threaded rod 320 is glued with the top center of the sealing block 330.

[0031] The sealing block 330 is made of flexible rubber, and the radius length of the bottom of the sealing block 330 matches that of the inner side of the pipe body 100.

[0032] The sealing block 330 is in an inverted trapezoidal structure, the radius length of the bottom of the sealing block 330 is smaller than that of the top, and a water separation film is glued on the outer side of the sealing block 330, which separates the sealing block 330 from the water quality sample and prevents the sealing block 330 made of high-density rubber from affecting the water quality sample.

[0033] Example 1: Please refer to Figures 1 to 3In actual use, the operator can hold the pipe body 100 with the left hand, the pipe body 100 is made of high-density polyethylene material, and the pipe body 100 stores a water sample inside. Then the operator holds the pipe cap 200 with the right hand, aligns the bottom of the pipe cap 200 with the top of the pipe body 100, and inserts the pipe cap 200 downward, so that the screw joint 110 at the top of the pipe body 100 enters the inside of the pipe cap 200. At this time, the sealing assembly 300 inside the pipe cap 200 is in an uninstalled state. Then the operator rotates the pipe cap 200 clockwise, so that the threads I above the inside of the pipe cap 200 are threadedly connected with the internal screw grooves I opened on the outside of the screw joint 110. With the thread connection, the pipe cap 200 gradually moves downward along the outside of the pipe body 100, until the top of the sealing ring I 111 is in contact with the inside of the pipe cap 200. At this time, the operator continues to rotate the pipe cap 200, so that the inside of the pipe cap 200 is in close abutment with the top of the sealing ring I 111, thereby achieving the first sealing effect of the pipe body 100 through the sealing ring I 111 and the thread connection between the pipe cap 200 and the screw joint 110.

[0034] Embodiment 2: Please refer to Figures 1 to 4 After the pipe cap 200 is screwed with the pipe body 100, the sealing assembly 300 inside the pipe cap 200 is in an uninstalled state. The sealing assembly 300 includes a threaded rod 320 for connecting a sealing block 330. The top of the threaded rod 320 is provided with a knob 310. At this time, the top of the threaded rod 320 is higher than the horizontal height of the screwing hole 210 opened at the top of the pipe cap 200, and the knob 310 is directly above the screwing hole 210. Due to the thread connection between the pipe body 100 and the pipe cap 200, the bottom of the sealing block 330 is inside the screw joint 110. The operator pinches the knob 310 and rotates it clockwise, so that the threaded rod 320 is threadedly connected with the screwing hole 210, thereby pushing the sealing block 330 downward along the inside of the screw joint 110 through the threaded rod 320.

[0035] Since the sealing block 330 is in an inverted trapezoidal structure, the radius length of the bottom of the sealing block 330 is smaller than that of the top. Therefore, with the pushing of the threaded rod 320, the sealing block 330 gradually moves downward along the screw joint 110, and the curved side surface of the sealing block 330 is gradually pressed tightly against the inner wall of the screw joint 110. It should be noted that a water distribution film is glued to the outside of the sealing block 330, which separates the sealing block 330 from the water sample and prevents the sealing block 330 made of high-density rubber material from affecting the water sample. When the bottom of the knob 310 is in contact with the top of the screwing hole 210, the top of the sealing ring II 211 glued to the outside of the screwing hole 210 is in close abutment with the bottom of the knob 310, thereby achieving the second sealing effect of the pipe body 100 through the tight pressing of the sealing block 330 against the inner wall of the screw joint 110 and the close abutment of the bottom of the knob 310 against the top of the sealing ring II 211. Therefore, the sealing performance of the pipe body 100 is significantly improved, and the operation is simple and convenient to use.

[0036] The above merely describes preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A sealable, preserved water quality sample tube comprising: The utility model provides a pipe body (100) and sealing assembly (300), its characterized in be: the pipe body (100) is equipped with the pipe cap (200) for and pipe body (100) screw joint, sealing assembly (300) is installed in the pipe cap (200) inside for the sealing of pipe body (100). The sealing assembly (300) includes a threaded rod (320) for connecting a sealing block (330), and the threaded rod (320) is provided with a knob (310) at the top.

2. A sealable preserved water quality sample tube as claimed in claim 1, wherein: The pipe body (100) is provided with a screw joint (110) at the top, the screw joint (110) is provided with a thread on the outside, and the screw joint (110) is glued with a sealing ring I (111) at the top.

3. A sealable preserved water quality sample tube as claimed in claim 1, wherein: The pipe cap (200) is provided with an internal screw groove I on the inside, and the internal screw groove I is matched with the specification of the thread, and the radius length of the inside of the pipe cap (200) is matched with the radius length of the screw joint (110).

4. A sealable preserved water quality sample tube as claimed in claim 3, wherein: The pipe cap (200) is provided with a screw joint hole (210) formed by penetrating downward at the top of the center, the screw joint hole (210) is provided with an internal screw groove II on the inside, and the screw joint hole (210) is glued with a sealing ring II (211) on the outside at the top.

5. A sealable preserved water quality sample tube as claimed in claim 4, characterised in that: The radius length of the screw joint hole (210) is matched with the radius length of the threaded rod (320), and the depth of the screw joint hole (210) is matched with the length of the threaded rod (320).

6. A sealable preserved water quality sample tube as claimed in claim 5, characterised in that: The threaded rod (320) is provided with a thread II on the outside, which is matched with the specification of the internal screw groove II, the threaded rod (320) is glued with the bottom of the knob (310) at the top of the center, and the threaded rod (320) is glued with the top of the sealing block (330) at the bottom of the center.

7. A sealable preserved water quality sample tube as claimed in claim 6, characterised in that: The sealing block (330) is made of flexible rubber, and the radius length of the bottom of the sealing block (330) is matched with the radius length of the inside of the pipe body (100).

8. A sealable preserved water quality sample tube as claimed in claim 7, characterised in that: The sealing block (330) is a reverse trapezoidal structure, and the radius length of the bottom of the sealing block (330) is less than the radius length of the top.

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