CN113042131B - Test-tube rack for microbiological experiments - Google Patents

Abstract

The invention discloses a test tube rack for a microorganism experiment, which belongs to the technical field of biological experiment appliances and comprises a rack body at least provided with an insertion hole and a dust guard plate which is sealed on the insertion hole; the dustproof plate covers the frame body in a telescopic mode, a channel through which the test tube can pass is formed in the position, corresponding to the jack, of the dustproof plate, and a dust-proof door is installed in the channel; the dust-proof door is mounted on the dust-proof plate, so that dust can effectively fall into the test tube, and the test tube is extracted by matching the extraction device with the dust-proof door, so that the risk of hand pollution of experimenters to the test tube opening is effectively reduced, the detection result accuracy is guaranteed, and the device has the advantages of novel structure, stable support, high reliability, safety in use and convenience.

Description

A test tube rack for microbiological experiments

technical field

The invention relates to the technical field of biological experimental instruments, in particular to a test tube rack for microorganism experiments.

Background technique

The test tube is a commonly used instrument in chemical laboratories and is used as a reaction container for a small amount of reagents. The traditional test tube support has a cuboid structure as a whole. , it is convenient to place the test tube. During the experiment, the test tube should be placed vertically in the hole for use or to observe the experimental phenomenon. After the experiment is completed, the cleaned test tube can be placed upside down on a small wooden post for drying. However, the traditional test tube holder has defects , In the microbial test, it is often necessary to observe the microorganisms in the test tube. When the test tube is taken from the test tube holder, the hand is easy to rub against the test tube mouth, which is easy to cause pollution to the test tube mouth. Moreover, the test tube mouth is open, and dust is easy to enter. affect the accuracy of the test results.

SUMMARY OF THE INVENTION

The purpose of the present invention is to overcome the defects of the prior art and provide a test tube rack for microorganism experiments.

In order to achieve the above object, the present invention provides the following technical solutions:

A test tube rack for microorganism experiments disclosed in the present invention comprises:

a frame body with at least one socket, and a dust-proof plate covering the socket;

The dust-proof plate is covered above the frame body in a telescopic form, and the dust-proof plate is provided with a passage through which the test tube can pass corresponding to the position of the insertion hole, and a dust-proof door is installed in the passage; and

An extraction device, which cooperates with the dust escape door and drives the dust escape door to open the channel, extracts the test tube in the insertion hole through the extraction device.

Further, the dust-proof plate is slidably connected with the dust-proof door, the dust-proof door is provided with a through hole that can overlap with the passage, and the dust-proof door is hinged with a flip to close the through hole. A driving structure is formed on the upper surface of the dust shielding door, and the extraction device guides the displacement of the dust shielding door through the driving structure, so that the dust shielding door opens the passage.

Further, the driving structure is an inclined surface formed on the upper surface of the dust door.

Further, one end of the dust escape door is a thin end and the other end is a thick end, and the lower surface of the dust escape door is parallel to the horizontal plane.

Further, between the dust-proof plate and the dust-proof door, an elastic member for driving the dust-proof door to reset is also installed.

Further, both sides of the dust-proof door are slidably connected to the dust-proof plate through a sliding block, the elastic component is installed in the sliding block, and the dust-proof plate is provided with a slideway corresponding to the position of the sliding block. One end of the elastic member is fixedly connected with the slider, and the other end is fixedly connected with the slideway.

Further, the extraction device is a cylindrical sleeve, one end of the extraction device is a closed end, the other end is an open end, the closed end is fixedly connected with a handle, and an annular groove is formed on the inner wall of the open end for connecting with the open end. The raised edge of the tube orifice snaps in or out.

Further, the extraction device is provided with at least one expansion joint extending from the open end toward the closed end.

Further, a dummy column is fixedly connected to the side of the rack body for simulating a test tube, and the annular groove of the extraction device can be engaged with or disengaged from the dummy column.

Further, the frame body is provided with a viewing window corresponding to the side of the socket for observing the liquid level of the test tube.

In the above technical scheme, the present invention provides a test tube rack for microbial experiments, with beneficial effects:

Compared with the prior art, the test tube rack for microbial experiments designed by the present invention has, first of all, a dust-proof plate can be installed on the rack body in a retractable manner, a channel is opened on the dust-proof plate corresponding to the position of the jack, and a dust-proof door is installed in the channel. The dust door closes the channel, so that the bottom of the dust plate can be closely attached to the mouth of the test tube to prevent dust from falling into the test tube;

Secondly, the dust-proof plate also has an extraction device, which cooperates with the dust-avoidance door. The extraction device extends into the channel to apply force to drive the dust-avoidance door to open, and extract the test tube in the socket, so as to avoid the hand touching. The purpose of the test tube mouth, this structure effectively avoids the risk of dust falling into the test tube and the hand touching the mouth of the tube, and ensures the accuracy of the test results.

Description of drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the accompanying drawings required in the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only described in the present invention. For some of the embodiments, those of ordinary skill in the art can also obtain other drawings according to these drawings.

1 is a schematic diagram of the overall structure of a test tube rack for microbial experiments disclosed in the present invention;

2 is a front view of a test tube rack for microorganism experiments disclosed in the present invention;

3 is an A-A cross-sectional view of a test tube rack for microorganism experiments disclosed in the present invention;

4 is a B-B cross-sectional view of a test tube rack for microorganism experiments disclosed in the present invention;

5 is a schematic diagram of the initial state of a test tube rack for microorganism experiments disclosed in the present invention, and the test tube is inserted into the jack;

6 is a schematic diagram of the state of extracting test tubes of a test tube rack extraction device for microorganism experiments disclosed in the present invention;

7 is a sectional view of the state of extracting test tubes of a test tube rack extraction device for microorganism experiments disclosed in the present invention;

8 is a schematic diagram of another use state of a test tube rack for microorganism experiments disclosed in the present invention;

FIG. 9 is a schematic diagram of the state of a test tube rack centralizing member for microorganism experiments disclosed in the present invention placed in a gap.

Description of reference numbers:

10, frame body; 12, window; 13, simulation column; 14, card slot; 15, long hole; 16, gap;

20. Dust-proof plate; 21. Channel; 22. Telescopic rod;

30. Dust escape door; 31. Driving structure; 32. Through hole; 33. Flip plate; 34. Slider; 35. Tension spring;

40, extraction device; 41, handle; 42, annular groove; 43, expansion joint;

50. Centralizing member;

60. Test tube.

Detailed ways

In order to make those skilled in the art better understand the technical solutions of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

See Figure 1-9;

A test tube rack for microbiological experiments is invented, comprising:

The rack body 10 for receiving the test tubes 60, the rack body 10 is provided with six insertion holes, and the six insertion holes are arranged in a line along the length direction of the rack body 10;

A dust-proof plate 20 is arranged above the rack body 10. The dust-proof plate 20 is installed on the rack body 10 through the telescopic rod 22 and can be telescopically extended along the height direction of the test tube 60. The test tube 60 is covered by the dust-proof plate 20, and the dust-proof plate 20 The telescopic rod 22 is in a tensioned state when it is in a free state, so that the height of the dust-proof plate 20 is less than the height of the test tube before sealing the mouth of the test tube 60, and the dust-proof plate 20 is provided with a channel 21 corresponding to the position of the jack, and the channel 21 is installed with a dust-proof door 30,

Referring to FIG. 5 , the test tube 60 can be put into the jack through the channel 21 during use. After the test tube 60 is placed, the dustproof plate 20 is pulled upward, the dustproof plate 20 goes over the top of the test tube 60, and the dustproof door 30 closes the channel 21. Then, the bottom of the dust-proof plate 20 can be closely attached to the mouth of the test tube 60 to prevent dust from falling into the test tube 60;

6-7, the dustproof plate 20 also has an extraction device 40, which is used to cooperate with the dustproof door 30. The extraction device 40 extends into the channel 21 and exerts a force to drive the dustproof door 30 to open and extract the socket. The test tube 60 inside realizes the purpose of preventing the hand from touching the mouth of the test tube 60;

Referring to FIG. 7 , preferably, the dust-proof plate 20 is located below the channel 21 and is slidably connected to a dust-avoiding door 30 through a slideway. The through hole 32 connects the channel 21 with the jack to ensure that the test tube 60 enters the jack smoothly, and the diameter of the through hole 32 is not less than the diameter of the test tube 60;

When in use, the test tube 60 enters the jack after passing through the channel 21 and the through hole 32. The dust escape door 30 is located below the through hole 32 and is hinged with a flap 33 capable of closing the through hole 32. When the test tube 60 is inserted, the flap 33 is downward. Flip open the through hole 32, and the test tube 60 enters the jack smoothly. When the dust door 30 needs to cover the test tube 60, pull the dust plate 20 upward to the top of the test tube 60 until the flap 33 of the dust door 30 acts as a hinge The through hole 32 is automatically reset and closed, the dustproof plate 20 is released, and the flap 33 is attached to the mouth of the test tube 60 to prevent dust from entering the test tube 60;

A driving structure 31 is formed on the upper surface of the dust door 30. The extraction device 40 is in contact with the driving structure 31 and exerts a downward force to guide the displacement of the dust door 30 through the driving structure 31, so that the dust door 30 opens the channel 21, and the extraction device 40 contact with the test tube 60 to smoothly extract the test tube 60;

Referring to FIGS. 6-7 , preferably, the driving structure 31 is an inclined surface formed on the upper surface of the dustproof door 30 . The end of the extraction device 40 is in contact with the inclined surface, and the extraction device 40 is pressed. Under the guidance of the inclined surface, the dust-proof door 30 overcomes the contact friction force with the dust-proof plate 20 to generate displacement, thereby realizing the opening of the channel 21. Of course, in order to To reduce the frictional force, the contact surface between the dustproof door 30 and the dustproof plate 20 can be lubricated with grease in the prior art, or mechanical lubrication can be carried out by adding balls to reduce the frictional force.

Referring to FIG. 7 , preferably, one end of the dust escape door 30 is a thin end and the other end is a thick end, and the lower surface of the dust escape door 30 is parallel to the horizontal plane. That is to say, the dust escape door 30 is a wedge-shaped structure with an inclined upper surface, which is simple in structure and easy to manufacture;

Referring to FIG. 4 , preferably, between the dustproof plate 20 and the dustproof door 30 , an elastic member for driving the dustproof door 30 to reset is also installed. Preferably, the elastic component is a tension spring 35, and the dust door 30 is pulled by the tension spring 35 to close the passage 21;

2-4, the two sides of the dust-proof door 30 are slidably connected to the dust-proof plate 20 through the sliding block 34. An elastic component is installed in the sliding block 34. One end of the component is fixedly connected with the slider 34, and the other end is fixedly connected with the slideway. When in use, the channel 21 can be opened by pulling;

2 and 7, preferably, the extraction device 40 is a cylindrical sleeve, which can be made of nylon material in the prior art, one end of the extraction device 40 is a closed end, the other end is an open end, and the closed end is fixedly connected with a The handle 41, the inner wall of the open end is formed with an annular groove 42;

When in use, hold the handle 41, the extraction device 40 enters from the channel 21 of the dustproof plate 20, contacts the inclined surface of the dustproof door 30 through the open end, presses the handle 41, the dustproof door 30 is displaced to open the channel 21, and the extraction device 40 opens The end corresponds to the mouth of the test tube 60, press the handle 41, the open end of the extraction device 40 expands, and the annular groove 42 is engaged with the raised edge of the mouth of the test tube 60. The extraction device 40 is located at the open end with three expansion joints 43 evenly distributed in the circumferential direction. The expansion joints 43 extend from the open end toward the closed end.

Referring to FIG. 6 , preferably, the side of the rack body 10 is fixed with the same number of simulation columns 13 as the extraction devices 40 , and the shape structure of the end of the simulation column 13 matches the test tube 60 for simulating the test tube 60 . The diameter is equal to the diameter of the test tube 60, and the structure of the end of the simulated column 13 is the same as the structure of the nozzle of the test tube 60. The annular groove 42 of the extraction device 40 can be engaged with or disengaged from the simulated column 13. Through the simulated column 13, the extraction device 40 is not used. At the time, it is convenient to fasten the extraction device 40 on the rack body 10 .

Referring to FIG. 2 , preferably, a viewing window 12 is provided on the side of the frame body 10 corresponding to the socket for observing the liquid level of the test tube 60 . Specifically, windows 12 are provided on both sides of the frame body 10 corresponding to the socket. The windows 12 extend from the top of the socket to the bottom of the socket, and the liquid level in the test tube 60 can be easily observed through the windows 12 .

Referring to FIG. 1 , preferably, the test tube rack further includes a centering member 50 for supporting the frame body 10. The frame body 10 is provided with clamping grooves 14 on both sides, and is movably connected with the centralizing member 50 through the clamping grooves 14, so as to centralize The member 50 extends along the width direction of the frame body 10 to widen the width of the frame body 10 . To prevent the rack body 10 from tipping in the width direction, when the rack body 10 carries the test tube 60 , the righting member 50 is engaged with the clamping slot 14 and stretches in the width direction of the rack body 10 to widen the width of the rack body 10 and increase the size of the rack body 10 Covers an area, improves the stability of the frame body 10, reduces the risk of the frame body 10 tipping over, eliminates potential safety hazards, and improves the safety of use;

Referring to FIG. 8 , in a preferred embodiment, the clamping groove 14 is a polygonal groove, the cross-sectional contour of the centralizing member 50 matches the clamping groove 14 , and the centralizing member 50 can be movably connected with the clamping groove 14 . Specifically, the cross-section of the clamping slot 14 is a quadrilateral structure formed by the opening edge and the three-sided side walls, and the centralizing member 50 is a quadrilateral annular structure. When in use, the centralizing member 50 can be interference fit with the clamping slot 14 to avoid moving the frame. At 10 o’clock, the centralizing member 50 is separated from the frame body 10, and, using the characteristic of the quadrilateral, the clamping groove 14 is in surface contact with the centralizing member 50 to limit the rotational displacement of the centralizing member 50, so that the centralizing member 50 effectively supports the frame body 10;

Referring to FIG. 8 , preferably, the frame body 10 is located above the clamping slot 14 and is provided with an elongated hole 15 that is slidably connected to the centralizing member 50 . extend.

When in use, when the centralizing member 50 is separated from the clamping slot 14, the centralizing member 50 can move freely in the elongated hole 15 through the elongated hole 15. Preferably, the centralizing member 50 is a closed annular structure, and the annular structure is larger than the frame body 10. For the length, as shown in FIG. 8 , after the centralizing member 50 is separated from the clamping slot 14 , it can be displaced to the top of the frame body 10 after entering the elongated hole 15 . The righting member 50 can be used as the handle of the storage device, and one object is used for multiple purposes, so that the righting member 50 can not only support the frame body 10, but also be convenient to move and carry the storage device, which greatly improves the convenience of the storage device;

Referring to FIG. 9 , in the preferred embodiment, in order to facilitate the storage of the centralizing member 50, the top end face of the frame body 10 is provided with a gap 16. When the centralizing member 50 is not used, the centralizing member 50 can be placed on the gap 16, and the gap 16 can pass through the gap. 16. The centralizing member 50 is accommodated to reduce the volume of the frame body 10 and avoid occupying space;

In the above technical scheme, the present invention provides a test tube rack for microbial experiments;

Beneficial effects: Compared with the prior art, the test tube rack for microorganism experiments designed by the present invention, firstly, the rack body is telescopically installed with a dust-proof plate, the dust-proof plate is provided with a channel corresponding to the position of the jack, and the channel is installed with a dust-proof door , Close the channel through the dust-proof door, so that the bottom of the dust-proof plate can be closely attached to the mouth of the test tube to prevent dust from falling into the test tube;

Secondly, the dust-proof plate also has an extraction device, which cooperates with the dust-avoidance door. The extraction device extends into the channel to apply force to drive the dust-avoidance door to open, and extract the test tube in the socket, so as to avoid the hand touching. The purpose of the test tube mouth, this structure effectively avoids the risk of dust falling into the test tube and the hand touching the mouth of the tube, and ensures the accuracy of the test results.

Certain exemplary embodiments of the present invention have been described above by way of illustration only, and it is needless to say that those skilled in the art may The described embodiments are modified. Accordingly, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of the claims of the present invention.

Claims (5)

1. A test tube rack for microorganism experiments comprises:

the dust-proof cover comprises a frame body (10) at least provided with a jack and a dust-proof plate (20) covered on the jack, and is characterized in that the frame body is provided with a plurality of through holes;

the dustproof plate (20) is covered above the frame body (10) in a telescopic mode, a channel (21) through which a test tube (60) can pass is formed in the position, corresponding to the jack, of the dustproof plate (20), and a dust-proof door (30) is installed in the channel (21); and

an extraction device (40) which is matched with the dust-avoiding door (30) and drives the dust-avoiding door (30) to open the channel (21), and the test tube (60) in the jack is extracted through the extraction device (40);

the dust-proof door (30) is connected to the dust-proof plate (20) in a sliding manner, a driving structure (31) is formed on the upper surface of the dust-proof door (30), the extraction device (40) guides the dust-proof door (30) to move through the driving structure (31), so that the passage (21) is opened by the dust-proof door (30), and the driving structure (31) is an inclined surface formed on the upper surface of the dust-proof door (30);

a through hole (32) capable of being overlapped with the channel (21) is formed in the dust avoiding door (30), and a turning plate (33) for closing the through hole (32) is hinged to the dust avoiding door (30);

an elastic component for driving the dust-proof door (30) to reset is also arranged between the dust-proof plate (20) and the dust-proof door (30);

two sides of the dust-proof door (30) are slidably connected with the dust-proof plate (20) through a sliding block (34), the elastic part is installed in the sliding block (34), a sliding way is formed in the position, corresponding to the sliding block (34), of the dust-proof plate (20), one end of the elastic part is fixedly connected with the sliding block (34), and the other end of the elastic part is fixedly connected with the sliding way;

extraction element (40) are cylindrical sleeve pipe, extraction element (40) one end is the blind end, and the other end is the open end, the blind end has linked firmly handle (41), the open end inner wall is formed with annular groove (42) for with test tube (60) bellied edge block of mouth of pipe or break away from.

2. A test tube rack for microorganism experiments according to claim 1, characterized in that;

one end of the dust-proof door (30) is a thin end, the other end of the dust-proof door is a thick end, and the lower surface of the dust-proof door (30) is parallel to the horizontal plane.

3. A test tube rack for microorganism experiments according to claim 1, characterized in that;

the extraction device (40) is provided with at least one expansion joint (43), and the expansion joint (43) extends from the opening end to the closed end.

4. A test tube rack for microorganism experiments according to claim 1, characterized in that;

support body (10) lateral part has linked firmly simulation post (13) for simulation test tube (60), extraction element (40) ring channel (42) can with simulation post (13) block or break away from.

5. A test tube rack for microorganism experiments according to claim 1, characterized in that;

the rack body (10) corresponds the side part of the jack is provided with a window (12) for observing the liquid level of the test tube (60).

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