CN220443880U

CN220443880U - Test tube rack

Info

Publication number: CN220443880U
Application number: CN202321724904.XU
Authority: CN
Inventors: 李俊
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-06-30
Filing date: 2023-06-30
Publication date: 2024-02-06
Anticipated expiration: 2033-06-30

Abstract

The utility model relates to a test tube rack, which comprises a chassis, wherein the upper surface of the chassis is provided with a strip-shaped mounting groove and a plurality of test tube limiting grooves, a bidirectional screw rod is rotationally arranged in the strip-shaped mounting groove, one end of the bidirectional screw rod extends to the outside of the chassis and is fixed with a knob, a left-handed thread section and a right-handed thread section are arranged on the bidirectional screw rod in a half-and-half manner, threaded sleeves are respectively sleeved on the left-handed thread section and the right-handed thread section, and a first external thread is arranged on the peripheral wall of the chassis; the fixed disk is arranged above the chassis, a plurality of test tube fixing holes corresponding to the test tube limiting grooves are formed in the fixed disk, a sliding groove is formed in the lower surface of the fixed disk, a sliding rod is fixed in the sliding groove, a sliding sleeve is sleeved on the sliding rod in a sliding manner, and a second external thread is formed in the peripheral wall of the fixed disk; the two ends of the upper part of the X-shaped rod are respectively hinged with the sliding sleeve, the two ends of the lower part of the X-shaped rod are respectively hinged with the threaded sleeve, and the middle part of the X-shaped rod is hinged; the inner peripheral wall of the cover body is provided with an inner thread which is matched with the first outer thread and the second outer thread.

Description

Test tube rack

Technical Field

The utility model relates to the technical field of chemical experiment tools, in particular to a test tube rack.

Background

The test tube rack is the most basic laboratory instrument in chemistry laboratory, and the test tube rack mainly comprises base, support and shelf, has offered the test tube hole that holds the test tube on the shelf, and test tube rack simple structure, convenient to use, the application is extensive. The existing test tube rack is used for avoiding falling into dust in an experiment, a cover plate is arranged on the test tube rack, and the test tube is capped and sealed.

For example, in publication number CN202238120U, a test tube rack for chemistry is disclosed, which comprises a base, a fixed disk, a positioning column and a fixing plate, wherein the fixed disk is arranged above the base, the center of the upper surface of the base is provided with the positioning column and is vertically connected with the lower end of the positioning column, and the upper end of the positioning column passes through the center of the fixed disk and is fixedly connected with the fixing plate; the base is provided with a fixed slot around the positioning column, the fixed disk is provided with a through hole around the positioning column, the upper part of the fixed disk is provided with a cover plate, and the center of the cover plate is arranged at the upper end of the positioning column and is in sliding connection with the positioning column. Cover sealing is simultaneously carried out on a plurality of test tubes through the cover plate, dust is placed into the test tubes, and accuracy of chemical experiments is improved.

However, in this way, the center of the cover plate is arranged at the upper end of the positioning column and is in sliding connection with the positioning column, the cover plate is in direct contact with the test tube port when the test tube is sealed, and the cover body is easy to collide with the test tube port to cause the damage of the test tube; and the test-tube rack is fixed knot structure, can't adapt to not co-altitude, the test tube of equidimension and deposit, and when not using, occupation space is great, is unfavorable for the test-tube rack to deposit.

Disclosure of Invention

In order to solve the technical problems, the utility model provides the test tube rack, which can not only shade the tube orifice of the test tube, but also avoid the damage of the test tube, is suitable for storing the test tubes with different sizes, is convenient to store when the test tube rack is not used, and reduces the storage space of the test tube rack.

The utility model provides a test tube rack for solving the technical problems, which comprises: the device comprises a chassis, wherein a strip-shaped mounting groove and a plurality of test tube limiting grooves are formed in the upper surface of the chassis, a bidirectional screw rod is rotationally arranged in the strip-shaped mounting groove, one end of the bidirectional screw rod extends to the outside of the chassis and is fixed with a knob, a left-handed thread section and a right-handed thread section are arranged on the bidirectional screw rod in a half-and-half mode, threaded sleeves are respectively sleeved on the left-handed thread section and the right-handed thread section, and a first external thread is arranged on the peripheral wall of the chassis; the fixing disc is arranged above the chassis, a plurality of test tube fixing holes corresponding to the test tube limiting grooves are formed in the fixing disc, sliding grooves parallel to the strip-shaped mounting grooves are formed in the lower surface of the fixing disc, sliding rods are fixed in the sliding grooves, sliding sleeves are sleeved on the sliding rods in a sliding mode, and second external threads are formed in the peripheral wall of the fixing disc; the two ends of the upper part of the X-shaped rod are respectively hinged with the sliding sleeve, the two ends of the lower part of the X-shaped rod are respectively hinged with the threaded sleeve, and the middle part of the X-shaped rod is hinged; the cover body, be equipped with on the inner peripheral wall of cover body with first external screw thread, second external screw thread screw-thread fit's internal thread.

Further, a limiting ring which is in butt joint with the bottom end of the cover body is arranged on the outer surface of the chassis, and the limiting ring is located above the knob.

Further, a yielding groove is formed in the top of the cover body, and a handle is fixed in the middle of the yielding groove.

Further, the arc-shaped grooves are symmetrically formed in the inner side walls of the test tube fixing holes, arc-shaped clamping plates are slidably arranged in the arc-shaped grooves, and clamping elastic pieces are fixed on the inner sides of the arc-shaped clamping plates.

Further, the middle part of test tube spacing groove is equipped with the projection, the top of projection is equipped with the ball groove, the test tube spacing inslot is encircleed the projection is equipped with the sponge that absorbs water.

Further, an annular boss is arranged on the lower surface of the fixed disc, and an annular groove which is matched with the annular boss is arranged on the upper end face of the chassis.

Further, two damping elastic pieces are arranged on the sliding rod and located between the sliding sleeve and the inner side wall of the sliding groove.

Further, an anti-slip gasket is arranged on the lower surface of the chassis.

The test tube fixing device has the beneficial effects that the test tube is fixed through the test tube limiting groove on the chassis and the test tube fixing hole on the fixing disc, so that the stability of the test tube on the test tube rack is improved.

Through the setting of bi-directional screw rod, screw thread sleeve, sliding sleeve and X shape pole for when the bi-directional screw rod rotates, screw thread sleeve is close to each other or keeps away from on the left-hand screw thread section and the right-hand screw thread section of bi-directional screw rod, and then drives the lower part both ends of X shape pole and be close to each other or keep away from each other, and the upper end drives sliding sleeve and is close to each other or keep away from each other, and then drives the fixed disk and reciprocate, adjusts the distance between fixed disk and the chassis, deposits with the test tube of adaptation not co-altitude. When not using, make two sliding sleeve keep away from each other until the tip that slides the bar mounting groove, at this moment, the up end of chassis and the lower terminal surface contact of fixed disk, X shape pole is located bar mounting groove and spout, and the test-tube rack wholly folds, makes the whole height of test-tube rack diminish, makes things convenient for the test-tube rack to deposit.

Through the internal screw thread on the lid and the cooperation of the second external screw thread on the fixed disk, make the lid connect soon shelter from the test tube mouth on the fixed disk, and support the lid through internal screw thread and second external screw thread this moment, do not direct contact between lid and the test tube mouth, not only avoid the dust to get into in the test tube, improve the accuracy of chemistry experiment, still can avoid the test tube to damage. Through the internal thread on the lid and the first external screw thread cooperation on the chassis, when the test-tube rack is folding, the lid connects soon on the fixed disk and continue to rotate and connect soon with the first external screw thread on the chassis again, and the lid cover is established outside fixed disk and chassis, not only can shelter from fixed disk and chassis, avoids the interior deposition of test-tube rack, still can make lid, fixed disk and chassis fix as wholly, make things convenient for taking, depositing of test-tube rack.

In conclusion, the cover body can be used for shielding the test tube port, so that the accuracy of a chemical experiment is improved, the probability of damage to the test tube can be reduced, and the storage device can be suitable for storage of different test tubes in size; when the test tube rack is not used, the test tube rack can be folded, the overall height of the test tube rack is reduced, and the test tube rack is convenient to store.

The utility model will be further described with reference to the drawings and the specific examples.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is an enlarged detail view of A of FIG. 1;

FIG. 3 is a schematic view of the structure of the cover of the present utility model;

FIG. 4 is a schematic cross-sectional view of a strip-shaped mounting groove of the present utility model;

FIG. 5 is a schematic cross-sectional view of a test tube fixing hole according to the present utility model.

In the accompanying drawings: the novel water-absorbing device comprises a 1-chassis, a 11-strip-shaped mounting groove, a 12-test tube limiting groove, a 121-convex column, a 122-spherical groove, a 123-water-absorbing sponge, a 13-bidirectional screw, a 14-knob, a 15-threaded sleeve, a 16-first external thread, a 17-limiting ring, an 18-annular groove, a 19-anti-slip gasket, a 2-fixed disc, a 21-test tube fixing hole, a 211-arc groove, a 212-arc clamping plate, a 213-clamping elastic piece, a 22-sliding groove, a 23-sliding rod, a 231-vibration-absorbing elastic piece, a 24-sliding sleeve, a 25-second external thread, a 26-annular boss, a 3-X-shaped rod, a 4-cover body, a 41-internal thread, a 42-yielding groove and a 43-grip.

Detailed Description

Specific embodiments of the present utility model will be described in detail with reference to the accompanying drawings.

Referring to fig. 1 to 5, the utility model provides a test tube rack, which comprises a chassis 1, a fixed disk 2, a cover 4 and an X-shaped rod 3 positioned between the chassis 1 and the fixed disk 2, wherein the fixed disk 2 is arranged above the chassis 1. Preferably, a non-slip pad 19 is arranged on the lower surface of the chassis 1, so that the possibility of pouring the test tube rack in use is reduced. The X-shaped rod 3 supports the fixed disc 2 to ascend or descend so as to adapt to test tubes with different sizes. The test tube on the chassis 1 and the fixed disk 2 is shielded through the cover body 4, so that dust is prevented from entering the test tube, and the accuracy of a chemical experiment is improved.

Wherein, the chassis 1 upper surface is equipped with a plurality of test tube spacing groove 12, and preferably, a plurality of test tube spacing groove 12 is followed chassis 1 circumference is evenly arranged. The fixed disk 2 is provided with a plurality of test tube fixing holes 21 corresponding to the test tube limiting grooves 12. When the test tube fixing device is used, a test tube penetrates through the test tube fixing hole 21, the bottom of the test tube fixing hole is placed in the test tube limiting groove 12 to limit, and stability of the test tube is improved. Preferably, a convex column 121 is arranged in the middle of the test tube limiting groove 12, a spherical groove 122 is arranged at the top of the convex column 121, and a water absorbing sponge 123 is arranged in the test tube limiting groove 12 around the convex column 121. The ball groove 122 is used for limiting the bottom of the test tube, and the convex column 121 is used for limiting the mouth of the test tube when the test tube is reversely buckled after the test tube is cleaned, and the water absorbing sponge 123 is used for absorbing water drops flowing out of the test tube. Further, the inner side wall of the test tube fixing hole 21 is symmetrically provided with an arc groove 211, an arc clamping plate 212 is slidably arranged in the arc groove 211, and a clamping elastic piece 213 is fixed on the inner side of the arc clamping plate 212. At this time, through the cooperation of arc cardboard 212 and chucking elastic component 213, when the test tube is put into test tube fixed orifices 21, the arc cardboard 212 chucking improves the stability of test tube at the surface of test tube.

In this way, when the test tube storage device is used, the bottom of the test tube passes through the test tube fixing hole 21 and then is placed in the spherical groove 122 of the boss to fix the test tube, and the arc-shaped clamping plate 212 is clamped on the outer surface of the test tube under the action of the clamping elastic piece 213, so that the test tube can be clamped, and due to the arrangement of the clamping elastic piece 213, the arc-shaped clamping plate 212 can clamp test tubes with different sizes, so that the stability of test tube storage is improved, and meanwhile, the universality of the test tube storage device is improved; after cleaning the test tube, can invert the test tube in test tube fixed orifices 21, the tube mouth cover is established on the boss, and the residual water in the test tube flows into the test tube limiting groove 12 along the test tube wall and is absorbed by the sponge 123 that absorbs water, makes things convenient for the test tube to dry, improves the practicality of test-tube rack.

The upper surface of the chassis 1 is also provided with a strip-shaped mounting groove 11, the strip-shaped mounting groove 11 is rotationally provided with a bidirectional screw 13, one end of the bidirectional screw 13 extends to the outside of the chassis 1 and is fixed with a knob 14, and the bidirectional screw 13 can be driven to rotate by rotating the knob 14 by a user. The bidirectional screw rod 13 is provided with a left-handed thread section and a right-handed thread section in half, the left-handed thread section and the right-handed thread section are respectively sleeved with a thread sleeve 15, the lower surface of the fixed disk 2 is provided with a chute 22 parallel to the strip-shaped mounting groove 11, a sliding rod 23 is fixed in the chute 22, a sliding sleeve 24 is sleeved on the sliding rod 23 in a sliding manner, two ends of the upper portion of the X-shaped rod 3 are respectively hinged with the sliding sleeve 24, two ends of the lower portion of the X-shaped rod are respectively hinged with the thread sleeve 15, and the middle portion of the X-shaped rod 3 is hinged. Further, two damping elastic members 231 are disposed on the sliding rod 23, and the damping elastic members 231 are located between the sliding sleeve 24 and the inner side wall of the sliding slot 22. The vibration damping elastic member 231 can prevent the sliding sleeve 24 from colliding with the inner side wall of the sliding chute 22, and improve the stability of the fixed disc 2 during up-and-down movement.

Through bi-directional screw 13 rotation, screw sleeve 15 is close to or keeps away from each other on the left-hand screw section and the right-hand screw section of bi-directional screw 13, and then drives the lower part both ends of X shape pole 3 to be close to or keep away from each other, and the upper end drives sliding sleeve 24 and is close to or keep away from each other, and then drives fixed disk 2 and reciprocate, adjusts the distance between fixed disk 2 and the chassis 1 to the test tube of adaptation not co-altitude is deposited. When not in use, the two sliding sleeves 24 are mutually far away until the two sliding sleeves slide to the end part of the strip-shaped mounting groove 11, at the moment, the upper end surface of the chassis 1 is in contact with the lower end surface of the fixed disc 2, the X-shaped rod 3 is positioned in the strip-shaped mounting groove 11 and the sliding groove 22, and the whole test tube rack is folded, so that the whole height of the test tube rack is reduced, and the test tube rack is convenient to store.

The inner peripheral wall of the cover body 4 is provided with an inner thread 41 in threaded fit with the first outer thread 16 and the second outer thread 25, the outer peripheral wall of the chassis 1 is provided with the first outer thread 16, and the outer peripheral wall of the fixed disk 2 is provided with the second outer thread 25. The lid 4 can be screwed with chassis 1, fixed disk 2 through first external screw thread 16, second external screw thread 25, can take off lid 4, conveniently put into the test-tube rack with the test tube in, also can cover lid 4 and shelter from the test tube mouth, still can shelter from the test-tube rack is whole when accomodating. Further, an annular boss 26 is provided on the lower surface of the fixed disc 2, and an annular groove 18 corresponding to the annular boss 26 is provided on the upper end surface of the chassis 1. When the X-shaped rod 3 drives the fixed disc 2 to move downwards, the annular boss 26 is inserted into the annular groove 18, so that dislocation between the fixed disc 2 and the chassis 1 can be avoided when the test tube rack is used or stored, and storage is convenient.

Further, a limiting ring 17 abutting against the bottom end of the cover body 4 is arranged on the outer surface of the chassis 1, and the limiting ring 17 is located above the knob 14. At this time, the cover body 4 is blocked and limited by the limiting ring 17, so that interference between the cover body 4 and the knob 14 during screwing is avoided, the knob 14 is extruded, and the knob 14 is damaged. Further, a relief groove 42 is provided at the top of the cover 4, a grip 43 is fixed in the middle of the relief groove 42, and the relief groove 42 is provided to facilitate the user to hold the grip 43 and rotate the cover 4, thereby facilitating the operation.

At this time, through the cooperation of the internal thread 41 on the lid 4 and the second external thread 25 on the fixed disk 2, make the lid 4 can connect soon and shelter from the test tube mouth on the fixed disk 2, and support lid 4 through internal thread 41 and second external thread 25 this moment, do not direct contact between lid 4 and the test tube mouth, not only avoid the dust to get into in the test tube, improve the accuracy of chemistry experiment, still can avoid the test tube to damage. Through the cooperation of the internal thread 41 on the lid 4 and the first external thread 16 on the chassis 1, when the test-tube rack is folding, the lid 4 connects soon on the fixed disk 2 and continue to rotate and connect soon with the first external thread 16 on the chassis 1 again, and lid 4 cover is established outside fixed disk 2 and chassis 1, not only can shelter from fixed disk 2 and chassis 1, avoids the interior deposition of test-tube rack, can also make lid 4, fixed disk 2 and chassis 1 fix as wholly, makes things convenient for taking, depositing of test-tube rack.

When the test tube shielding device is used, the knob 14 is rotated to drive the bidirectional screw 13 to rotate, so that the fixed disc 2 ascends under the support of the X-shaped frame, the height between the fixed disc 2 and the chassis 1 is adapted to the height of a test tube, then the test tube is placed into the test tube fixing hole 21 of the fixed disc 2, the bottom of the test tube is placed in the spherical groove 122, at the moment, the arc-shaped clamping block is clamped on the outer wall of the test tube, and the cover body 4 is screwed with the second external thread 25 through the internal thread 41 and fixed above the fixed disc 2 to shield a test tube port; after the use, the cover body 4 is taken down, the knob 14 is rotated to drive the bidirectional screw rod 13 to rotate, and the fixed disc 2 is driven to descend, so that the test tube port is exposed, and the test tube is convenient to take down; after the test tube is cleaned, the test tube is reversely buckled and inserted into the test tube fixing hole 21, a test tube port is inserted on the convex column 121, and water drops in the test tube flow downwards to be absorbed by the water absorbing sponge 123. The test tube rack needs to be stored and transported, the knob 14 is rotated, the fixed disk 2 is driven to descend until the annular boss 26 is inserted into the annular groove 18, the height between the fixed disk 2 and the chassis 1 is reduced, then the cover body 4 is rotated, the cover body 4 is screwed with the second thread on the fixed disk 2 through the internal thread 41, then the cover body 4 is continuously rotated, the cover body 4 is continuously moved to the chassis 1 to be screwed with the first external thread 16 on the outer side wall of the chassis 1, and then the chassis 1, the fixed disk 2 and the cover body 4 are combined into a whole, so that the test tube rack is convenient to store.

The foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A test tube rack, comprising:

the novel test tube testing device comprises a chassis (1), wherein a strip-shaped mounting groove (11) and a plurality of test tube limiting grooves (12) are formed in the upper surface of the chassis (1), a bidirectional screw rod (13) is rotationally arranged in the strip-shaped mounting groove (11), one end of the bidirectional screw rod (13) extends to the outside of the chassis (1) and is fixed with a knob (14), a left-handed thread section and a right-handed thread section are arranged in half on the bidirectional screw rod (13), a thread sleeve (15) is sleeved on each of the left-handed thread section and the right-handed thread section, and a first external thread (16) is arranged on the peripheral wall of the chassis (1);

the fixing disc (2), the fixing disc (2) is arranged above the chassis (1), a plurality of test tube fixing holes (21) corresponding to the test tube limiting grooves (12) are formed in the fixing disc (2), sliding grooves (22) parallel to the strip-shaped mounting grooves (11) are formed in the lower surface of the fixing disc (2), sliding rods (23) are fixed in the sliding grooves (22), sliding sleeves (24) are sleeved on the sliding rods (23) in a sliding mode, and second external threads (25) are formed in the peripheral wall of the fixing disc (2);

the two ends of the upper part of the X-shaped rod (3) are respectively hinged with the sliding sleeve (24), the two ends of the lower part of the X-shaped rod are respectively hinged with the threaded sleeve (15), and the middle part of the X-shaped rod (3) is hinged;

the cover body (4), be equipped with on the inner peripheral wall of cover body (4) with first external screw thread (16), second external screw thread (25) screw-thread fit's internal thread (41).

2. The test tube rack according to claim 1, characterized in that a limiting ring (17) which is in butt joint with the bottom end of the cover body (4) is arranged on the outer surface of the chassis (1), and the limiting ring (17) is positioned above the knob (14).

3. The test tube rack according to claim 1, wherein a yielding groove (42) is formed in the top of the cover body (4), and a grip (43) is fixed in the middle of the yielding groove (42).

4. The test tube rack according to claim 1, wherein the inner side wall of the test tube fixing hole (21) is symmetrically provided with arc grooves (211), arc clamping plates (212) are slidably arranged in the arc grooves (211), and clamping elastic pieces (213) are fixed on the inner side of the arc clamping plates (212).

5. The test tube rack according to claim 1, wherein a convex column (121) is arranged in the middle of the test tube limiting groove (12), a spherical groove (122) is arranged at the top of the convex column (121), and a water absorbing sponge (123) is arranged in the test tube limiting groove (12) around the convex column (121).

6. Test tube rack according to claim 1, characterized in that the lower surface of the fixed disk (2) is provided with an annular boss (26), and the upper end surface of the chassis (1) is provided with an annular groove (18) adapted to the annular boss (26).

7. Test tube rack according to claim 1, characterized in that the slide bar (23) is provided with two damping elastic members (231), the damping elastic members (231) being located between the slide sleeve (24) and the inner side wall of the slide slot (22).

8. Test tube rack according to claim 1, characterized in that the lower surface of the chassis (1) is provided with anti-slip gaskets (19).