CN219284745U

CN219284745U - Quantitative suction device

Info

Publication number: CN219284745U
Application number: CN202223463662.1U
Authority: CN
Inventors: 曾蛟; 王庆同; 柳晓丹; 庞国涛; 刘淑亮; 臧现菲; 宇星辰; 车婧; 马浩然
Original assignee: Yantai Coastal Zone Geological Survey Center Of China Geological Survey
Current assignee: Yantai Coastal Zone Geological Survey Center Of China Geological Survey
Priority date: 2022-12-25
Filing date: 2022-12-25
Publication date: 2023-06-30
Anticipated expiration: 2032-12-25

Abstract

The utility model discloses a quantitative suction device, which relates to the technical field of sample detection equipment and comprises a sleeve, wherein a sealing cover is arranged above the sleeve, a quantity control mechanism is arranged inside the sealing cover, two symmetrical first sliding holes are formed in the outer surface of the sealing cover, a second sliding hole is formed in the outer surface of the sealing cover, a sampling mechanism is arranged on the outer surface of the sealing cover, two symmetrical grooves are formed in the outer surface of the sleeve, transparent glass is fixedly connected to the inner walls of the two grooves, and graduated scales are arranged on the outer surfaces of the two transparent glass. The utility model adjusts the measurement of the sampling by controlling the volume control mechanism, and can control the measurement of the sampling by the sampling mechanism by referring to the graduated scale when the adjusted height of the internal volume control mechanism can be seen by observing the graduated scale, thereby being capable of carrying out accurate control and improving the sampling accuracy of the quantitative suction device.

Description

Quantitative suction device

Technical Field

The utility model belongs to the technical field of sample detection equipment, and particularly relates to a quantitative suction device.

Background

The environmental detection is to detect the factors which influence the air environmental quality, know the trend of determining the environmental quality or the pollution degree and change, and develop a series of environmental work by knowing the environmental level, wherein the main detection objects are natural and artificial, the environmental detection mainly detects the factors such as chemical pollutants, physical pollution, biological pollution and the like, and the physical and chemical biological research means is used for carrying out qualitative, quantitative and systematic comprehensive analysis on the pollutants and related components in the environment so as to explore and research the environment.

According to the Chinese patent publication of application number 201921758085.4, a quantitative suction type sampling device for environmental detection is disclosed. Including the press head, press head lower extreme fixedly connected with push rod, push rod lower extreme swing joint has supporting platform, supporting platform lower extreme fixedly connected with mounting, mounting lower extreme swing joint has the appearance pipe, appearance pipe lower extreme fixedly connected with connector, connector lower extreme swing joint has the suction pipe.

With the above-described scheme, although the amount of suction can be limited by sliding the corresponding convex clip lever inward according to the required measurement, there are several problems in the above-described scheme as follows: (1) Because the measurement is controlled by the cooperation of the convex groove and the convex clamping rod, the sampled measurement is a fixed measurement, and cannot be accurately controlled on a certain measurement; (2) The whole quantitative suction device in the technical scheme has compact structure, but is inconvenient to detach and clean after the later suction is finished. Therefore, the quantitative suction device is designed to solve the technical problems.

Disclosure of Invention

The utility model aims to make up the defects of the prior art and provides a quantitative suction device.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a ration suction means, includes the sleeve pipe, sheathed tube top is equipped with the closing cap, the inside of closing cap is provided with accuse volume mechanism, two symmetrical first sliding holes have been seted up to the surface of closing cap, the second sliding hole has been seted up to the surface of closing cap, the surface of closing cap is provided with sampling mechanism, two symmetrical recesses have been seted up to the sheathed tube surface, two equal fixedly connected with transparent glass of inner wall of recess, two the scale is all installed to transparent glass's surface, sheathed tube inner wall fixedly connected with sampling tube.

As the preference of this embodiment, the inside of closing cap is provided with two symmetrical stop gear, sheathed tube bottom surface fixedly connected with connector, the inner wall threaded connection of connector has the suction pipe.

As the preference of this embodiment, the accuse volume mechanism includes the screw hole, the inner wall of screw hole is seted up in the surface of closing cap, the inner wall threaded connection of screw hole has the threaded rod.

As the preference of this embodiment, the upper surface fixedly connected with of threaded rod is twisted the piece, the threaded rod is kept away from the one end rotation that the piece bottom surface was twisted to the hand and is connected with the scale piece, the surface sliding connection of scale piece is in sheathed tube inner wall.

Preferably, the sampling mechanism includes a first sliding rod, an outer surface of the first sliding rod is slidably connected to an inner wall of the second sliding hole, and a hand pulling plate is fixedly connected to an upper surface of the first sliding rod.

As the preference of this embodiment, the bottom surface of the hand pulling plate is fixedly connected with two symmetrical second sliding bars, and the outer surfaces of the two second sliding bars are slidably connected with the inner wall of the first sliding hole.

As the preference of this embodiment, the bottom surface fixedly connected with bottom plate of first slide bar, the surface sliding connection of bottom plate is in the inner wall of sampling tube, the bottom surface fixedly connected with rubber piece of bottom plate.

As the preference of this embodiment, the surface sliding connection of rubber piece is in the inner wall of sampling tube, two the one end fixedly connected with limiting plate that keeps away from hand pulling plate bottom surface of second slide bar, the surface sliding connection of hand pulling plate is in the inner wall of sheathed tube.

As the preference of this embodiment, stop gear includes subassembly chamber and spacing groove, the inner wall in subassembly chamber is seted up in the surface of closing cap, the inner wall in spacing groove is seted up in sheathed tube surface, the inner wall sliding connection in subassembly chamber has spacing slide bar, the surface sliding connection in the inner wall of spacing groove of spacing slide bar.

As the preference of this embodiment, the surface fixedly connected with hand piece of spacing slide bar, the surface fixedly connected with slide of spacing slide bar, the surface sliding connection of slide is in the inner wall in subassembly chamber, the surface fixedly connected with elastic component of slide, the one end fixedly connected with in the inner wall in subassembly chamber of the surface of elastic component keep away from the slide.

Compared with the prior art, the utility model has the following beneficial effects:

(1) According to the quantitative suction device, the measurement of sampling is adjusted by controlling the quantity control mechanism, the adjusted height of the internal quantity control mechanism can be seen by observing the graduated scale, the measurement of sampling by the sampling mechanism can be controlled by referencing the graduated scale, the accurate control can be performed, and the sampling accuracy of the quantitative suction device is improved.

(2) According to the quantitative suction device, the whole quantitative suction device can be disassembled by arranging the limit mechanism, the connector and the suction pipe to be matched, the seal cover, the quantity control mechanism, the sampling mechanism and the sleeve can be separated by using the limit mechanism, and the suction pipe can be separated from the connector by manually rotating the suction pipe, so that the cleaning is convenient after a sample is sucked.

Drawings

FIG. 1 is a schematic perspective elevation view of the present utility model;

FIG. 2 is a schematic view of the internal structure of the present utility model;

FIG. 3 is a schematic view of the internal structure of the volume control mechanism of the present utility model;

FIG. 4 is a schematic perspective view of a sampling mechanism according to the present utility model;

fig. 5 is an enlarged schematic view of the structure of fig. 2 a according to the present utility model.

The figure shows: 1. the device comprises a sleeve, 2, a sealing cover, 3, a quantity control mechanism, 301, a threaded hole, 302, a threaded rod, 303, a screwing block, 304, a scale block, 4, a first sliding hole, 5, a second sliding hole, 6, a sampling mechanism, 601, a first sliding rod, 602, a second sliding rod, 603, a hand pulling plate, 604, a bottom plate, 605, a rubber block, 606, a limiting plate, 7, a groove, 8, transparent glass, 9, a graduated scale, 10, a limiting mechanism, 1001, a component cavity, 1002, a limiting groove, 1003, a limiting sliding rod, 1004, a hand pulling block, 1005, a sliding plate, 1006, an elastic component, 11, a connector, 12, a suction pipe, 13 and a sampling pipe.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model. It is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present utility model are within the protection scope of the present utility model.

Referring to fig. 1 to 5, an embodiment of the present utility model provides a quantitative suction device, which includes a sleeve 1, a sealing cover 2 is disposed above the sleeve 1, and a quantity control mechanism 3 is disposed inside the sealing cover 2. In this embodiment, the volume control mechanism 3 includes a threaded hole 301, the inner wall of the threaded hole 301 is opened on the outer surface of the sealing cover 2, the inner wall of the threaded hole 301 is in threaded connection with a threaded rod 302, the upper surface of the threaded rod 302 is fixedly connected with a hand screwing block 303, one end of the threaded rod 302 away from the bottom surface of the hand screwing block 303 is in rotary connection with a scale block 304, and the outer surface of the scale block 304 is in sliding connection with the inner wall of the sleeve 1. In this embodiment, the bottom surface of the scale block 304 and the bottom surface of the rubber block 605 are at a uniform level, so that the sampling measurement in the sampling tube 13 can be accurately controlled. Through the cooperation of the sleeve 1 and the sampling tube 13, the clamping limit can be carried out on the scale block 304, so that the scale block 304 can only move up and down, and the scale block 304 is prevented from rotating along with the threaded rod 302. Two symmetrical first sliding holes 4 are formed in the outer surface of the sealing cover 2, a second sliding hole 5 is formed in the outer surface of the sealing cover 2, and a sampling mechanism 6 is arranged on the outer surface of the sealing cover 2.

Referring to fig. 1 to 5, the sampling mechanism 6 includes a first sliding rod 601, an outer surface of the first sliding rod 601 is slidably connected to an inner wall of the second sliding hole 5, a hand pulling plate 603 is fixedly connected to an upper surface of the first sliding rod 601, two symmetrical second sliding rods 602 are fixedly connected to a bottom surface of the hand pulling plate 603, and outer surfaces of the two second sliding rods 602 are slidably connected to an inner wall of the first sliding hole 4. Through the cooperation of the first slide hole 4 and the second slide hole 5, the first slide bar 601 and the second slide bar 602 can be limited, so that the first slide bar and the second slide bar 602 can stably move up and down. The bottom surface fixedly connected with bottom plate 604 of first slide bar 601, the surface sliding connection of bottom plate 604 is in the inner wall of sampling tube 13, the bottom surface fixedly connected with rubber piece 605 of bottom plate 604, the surface sliding connection of rubber piece 605 is in the inner wall of sampling tube 13, the one end fixedly connected with limiting plate 606 of the bottom surface of keeping away from hand drawing plate 603 of two second slide bars 602, the surface sliding connection of hand drawing plate 603 is in the inner wall of sleeve pipe 1.

In this embodiment, the upper surface of the limiting plate 606 is parallel to the bottom surface of the rubber block 605, and when the limiting plate 606 is clamped by the limit of the scale block 304, the amount of suction inside the sampling tube 13 can be controlled. The outer surface of the limiting plate 606 is in contact with the inner wall of the sleeve 1, and is not in contact with the outer surface of the sampling tube 13, so that pressure is not generated when the limiting plate 606 moves up and down, and the lifting movement can be stabilized.

Referring to fig. 1 to 5, two symmetrical grooves 7 are formed in the outer surface of the sleeve 1, transparent glass 8 is fixedly connected to the inner walls of the two grooves 7, and through the action of the transparent glass 8, the scale block 304 and the limiting plate 606 can be observed, and the sucking amount of the sampling tube 13 can be accurately controlled by matching with the scale 9. The outer surfaces of the two transparent glass 8 are provided with graduated scales 9, and the inner wall of the sleeve 1 is fixedly connected with a sampling tube 13.

Referring to fig. 1 to 5, two symmetrical limiting mechanisms 10 are arranged in the sealing cover 2, each limiting mechanism 10 comprises a component cavity 1001 and a limiting groove 1002, the inner wall of the component cavity 1001 is arranged on the outer surface of the sealing cover 2, the inner wall of the limiting groove 1002 is arranged on the outer surface of the sleeve 1, a limiting sliding rod 1003 is slidably connected to the inner wall of the component cavity 1001, and the outer surface of the limiting sliding rod 1003 is slidably connected to the inner wall of the limiting groove 1002. Through the cooperation of subassembly chamber 1001, spacing groove 1002, spacing slide bar 1003, when spacing slide bar 1003 roll-off spacing groove 1002, relieve the connection between sleeve pipe 1, the closing cap 2 this moment, can take closing cap 2 off, makes it decompose the suction means, is convenient for wash.

Referring to fig. 1 to 5, a hand pulling block 1004 is fixedly connected to the outer surface of the limit sliding rod 1003, a sliding plate 1005 is fixedly connected to the outer surface of the limit sliding rod 1003, the outer surface of the sliding plate 1005 is slidably connected to the inner wall of the assembly cavity 1001, an elastic assembly 1006 is fixedly connected to the outer surface of the sliding plate 1005, and one end, far away from the outer surface of the sliding plate 1005, of the elastic assembly 1006 is fixedly connected to the inner wall of the assembly cavity 1001.

In this embodiment, the elastic component 1006 is always in a pushing state, when the component cavity 1001 is overlapped with the inner wall of the limit groove 1002 when the component is required to be installed, the elastic component 1006 pushes the slide plate 1005 to move towards the direction of the limit groove 1002, and drives the limit slide bar 1003 to insert into the inner wall of the limit groove 1002, and the limit is completed after the insertion. The bottom surface fixedly connected with connector 11 of sleeve pipe 1, the inner wall threaded connection of connector 11 has suction pipe 12.

The working principle of the utility model is as follows: when the device is used, firstly, the hand-operated pulling plate 603 drives the bottom plate 604 and the rubber block 605 to move, air in the sampling tube 13 is extruded through the suction tube 12, secondly, the hand-operated pulling block 303 is rotated to drive the threaded rod 302 to rotate, the threaded rod 302 can drive the scale block 304 to move up and down after being matched with the threaded hole 301 to be in threaded connection, and the effect of the sleeve 1 and the sampling tube 13 is utilized to limit the scale block 304, so that the threaded rod 302 can not follow rotation when rotating, the lifting position of the scale block 304 can be observed through the transparent glass 8 in the lifting process of the scale block 304, the height of the scale block 304 can be adjusted by matching with the graduated scale 9, then, after adjustment is completed, the hand-operated pulling plate 603 is operated to drive the rubber block 605 to move upwards, the sample is sucked into the inside of the sampling tube 13 through negative pressure, finally, the hand-operated pulling block 1004 is operated to move outwards, and the limit slide rod 1003 and the slide plate are driven to move, when the inside is required to be cleaned, the limit 1003 slides out of the inner wall of the limit groove 1002, the connection between the sleeve 1 and the seal cap 2 can be released from the limit joint 1005, and the rotation of the joint cap 2 can be separated from the slide rod 11 from the position of the slide rod 11.

Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the scope of the present utility model, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made to the technical solution of the present utility model without departing from the spirit and scope of the technical solution of the present utility model.

Claims

1. A quantitative suction device comprising a cannula (1), characterized in that: the utility model discloses a telescopic tube, including sleeve pipe (1), sealing cap (2) and scale (9) are all installed to the inside of sealing cap (2), two symmetrical first slide opening (4) have been seted up to the surface of sealing cap (2), second slide opening (5) have been seted up to the surface of sealing cap (2), the surface of sealing cap (2) is provided with sampling mechanism (6), two symmetrical recess (7) have been seted up to the surface of sleeve pipe (1), two equal fixedly connected with transparent glass (8) of inner wall of recess (7), two scale (9) are all installed to the surface of transparent glass (8), the inner wall fixedly connected with sampling tube (13) of sleeve pipe (1).

2. A quantitative suction device according to claim 1, characterized in that: two symmetrical limiting mechanisms (10) are arranged in the sealing cover (2), a connector (11) is fixedly connected to the bottom surface of the sleeve (1), and a suction pipe (12) is connected to the inner wall of the connector (11) in a threaded mode.

3. A quantitative suction device according to claim 1, characterized in that: the volume control mechanism (3) comprises a threaded hole (301), the inner wall of the threaded hole (301) is formed in the outer surface of the sealing cover (2), and the inner wall of the threaded hole (301) is in threaded connection with a threaded rod (302).

4. A quantitative suction device according to claim 3, characterized in that: the upper surface fixedly connected with hand of threaded rod (302) twists piece (303), the one end that the bottom surface was kept away from hand of threaded rod (302) twists piece (303) rotates and is connected with scale piece (304), the surface sliding connection of scale piece (304) is in the inner wall of sleeve pipe (1).

5. A quantitative suction device according to claim 1, characterized in that: the sampling mechanism (6) comprises a first sliding rod (601), the outer surface of the first sliding rod (601) is connected to the inner wall of the second sliding hole (5) in a sliding mode, and a hand pulling plate (603) is fixedly connected to the upper surface of the first sliding rod (601).

6. A quantitative suction device according to claim 5, characterized in that: the bottom surface of hand pulling board (603) fixedly connected with two symmetrical second slide bars (602), the surface sliding connection of two second slide bars (602) is in the inner wall of first slide hole (4).

7. A quantitative suction device according to claim 6, characterized in that: the bottom surface fixedly connected with bottom plate (604) of first slide bar (601), the surface sliding connection of bottom plate (604) is in the inner wall of sampling tube (13), the bottom surface fixedly connected with rubber piece (605) of bottom plate (604).

8. A quantitative suction device according to claim 7, characterized in that: the outer surface sliding connection of rubber piece (605) is in the inner wall of sampling tube (13), two the one end fixedly connected with limiting plate (606) of keeping away from hand pulling plate (603) bottom surface of second slide bar (602), the outer surface sliding connection of hand pulling plate (603) is in the inner wall of sleeve pipe (1).

9. A quantitative suction device according to claim 2, characterized in that: the limiting mechanism (10) comprises a component cavity (1001) and a limiting groove (1002), wherein the inner wall of the component cavity (1001) is arranged on the outer surface of the sealing cover (2), the inner wall of the limiting groove (1002) is arranged on the outer surface of the sleeve (1), the inner wall of the component cavity (1001) is slidably connected with a limiting slide rod (1003), and the outer surface of the limiting slide rod (1003) is slidably connected with the inner wall of the limiting groove (1002).

10. A quantitative suction device according to claim 9, characterized in that: the outer surface fixedly connected with hand pulling block (1004) of spacing slide bar (1003), the outer surface fixedly connected with slide (1005) of spacing slide bar (1003), the surface sliding connection of slide (1005) is in the inner wall in subassembly chamber (1001), the outer surface fixedly connected with elastic component (1006) of slide (1005), the one end fixedly connected with in the inner wall in subassembly chamber (1001) of slide (1005) is kept away from to elastic component (1006) surface.