CN215917485U

CN215917485U - Test-tube rack for chemistry experiments

Info

Publication number: CN215917485U
Application number: CN202120742424.0U
Authority: CN
Inventors: 杨勇; 刘存振; 高俊雄
Original assignee: Shandong Keyuan Biochemical Co ltd
Current assignee: Shandong Keyuan Biochemical Co ltd
Priority date: 2021-04-13
Filing date: 2021-04-13
Publication date: 2022-03-01
Anticipated expiration: 2031-04-13

Abstract

The utility model relates to a test tube rack for chemical experiments. The technical scheme is as follows: comprises a base, a support column fixing seat, a bracket support column, an adjusting ring, a connecting shaft and a test tube fixing ring; the base includes box and lid, set up speed regulation knob and shift knob respectively about the middle of the lateral wall before the box, surface mounting is gone up to the box lid, the box built-in motor, lid upper surface center fixed connection the support column fixing base, support column fixing base center trompil suit the support column, support column suit adjustable ring, the adjustable ring lateral wall rotates and connects connecting axle one end, the connecting axle other end rotates and connects the solid fixed ring of test tube. The utility model has the beneficial effects that: satisfy the test tube fixed while, increase the test tube and rotate the function, promote certain experiments and need stir the process and the effect that mix, reduce in addition for rocking the test tube and cause the danger that reagent splatter and bring, improve the experiment security.

Description

Test-tube rack for chemistry experiments

Technical Field

The utility model belongs to the field of chemical experiment equipment, and relates to a test tube rack for chemical experiments.

Background

The test tube is a finger-shaped hollow round tube made of glass, is open at the top, is generally smooth, and is U-shaped at the bottom. The test tube rack is the most basic laboratory instrument for placing and airing test tubes. The test tube rack for the chemical experiment adopts a design that the test tube can be lifted and the angle can be adjusted, so that the test tube can be fixed, the rotation function of the test tube is increased, the process and the effect of stirring and mixing in some experiments are improved, in addition, the danger caused by reagent splashing due to artificial shaking of the test tube is reduced, and the experimental safety is improved.

SUMMERY OF THE UTILITY MODEL

In view of the problems in the prior art, the utility model discloses a test tube rack for chemical experiments, which adopts the technical scheme that the test tube rack comprises a base, a support column fixing seat, a support column, an adjusting ring, a connecting shaft and a test tube fixing ring; the base comprises a box and a cover, a rotating speed adjusting knob and a switch button are respectively arranged on the left side and the right side in the middle of the front side wall of the box, the cover is arranged on the upper surface of the box, a motor mounting ring is fixedly connected to the center of the bottom of an inner cavity of the box and is in interference fit connection with a motor, a right side driving gear and a left side driving gear are sequentially fixed by a motor output shaft, the left side driving gear and the right side driving gear are respectively in rotating connection with a left driven wheel and a right driven wheel through belts, the left driven wheel and the right driven wheel are respectively sleeved with a rotating shaft, the left rotating shaft and the right rotating shaft respectively penetrate through rotating shaft mounting holes on the left side and the right side of the upper surface of the cover, test tube turntables are respectively and fixedly connected to the top of the left rotating shaft and the right rotating shaft, a support post fixing seat is fixedly connected to the center of the support post, a support post adjusting ring is sleeved on the support post, the adjusting ring lateral wall rotates to be connected connecting axle one end, the connecting axle other end rotates to be connected the solid fixed ring of test tube designs like this, has increased the regulation nature and the convenience of whole test-tube rack, increases the motor simultaneously and helps the test tube to rotate, promotes efficiency of experiments and security.

As a preferred scheme of the present invention, a motor controller and a battery are respectively and fixedly mounted on the left and right sides of a motor mounting ring at the bottom of the base, the battery is electrically connected with the motor controller and is used for supplying power to the motor controller, the rotation speed adjusting knob and the switch button are respectively used for adjusting the rotation speed and starting and stopping of the motor, and a motor shaft mounting hole is formed in the center of the upper surface of the box.

As a preferred scheme of the utility model, the left driving gear and the right driving gear are respectively and rotationally connected with the left driven wheel and the right driven wheel through belts, so that the design can realize that one motor simultaneously drives two test tube turntables to rotate, and the efficiency is improved.

As a preferable scheme of the utility model, the side wall of the adjusting ring is provided with a first rectangular boss, a first notch is formed in the middle of the first rectangular boss, two inner side walls of the first notch are symmetrically provided with first mounting holes, the adjusting ring is sleeved on the support supporting column and can slide up and down along the support supporting column, and meanwhile, the side wall of the adjusting ring can be provided with a threaded hole to realize position fixing, so that the design is convenient for adjusting the vertical height of the test tube.

As a preferred scheme of the utility model, the left end and the right end of the connecting shaft are respectively provided with a second rectangular boss, the center of the second rectangular boss is provided with a second mounting hole, the connection between the adjusting ring and the connecting shaft and the connection between the connecting shaft and the test tube fixing ring both have damping performance, so that a test tube can be separated from a bottom support and suspended positioning can be realized by relying on the test tube fixing ring, and meanwhile, the process needs to be completed by matching with a test tube clamp.

As a preferable scheme of the utility model, the outer side wall of the test tube fixing ring is provided with a third rectangular boss, a third notch is formed in the middle of the third rectangular boss, two inner side walls of the third notch are symmetrically provided with third mounting holes, the center of the inner side wall of the test tube fixing ring is provided with a circular through groove, balls are uniformly arranged in the circular through groove, a circular through groove is formed in the center of the inner side wall of the test tube fixing ring, and balls are uniformly arranged in the circular through groove, so that the bottom of a test tube can smoothly rotate in the test tube fixing ring under the supporting rotation of the test tube turntable.

The adjustable ring with connecting axle one end is passed through first notch with the second rectangle boss rotates to be connected, the connecting axle other end with the fixed ring of test tube passes through the second rectangle boss with the third notch rotates to be connected.

The utility model has the beneficial effects that: adopt back shaft and adjustable ring sliding connection, the adjustable ring rotates with connecting axle and the solid fixed ring of test tube to be connected, realizes the optional position regulation and the location of test tube, sets up the test tube carousel simultaneously at the base upper surface, and supplementary test tube rotates, promotes the process and the effect that some experiments need stir the mixture, reduces in addition for rocking the test tube and causes reagent splatter danger that brings, improves the experiment security.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a cross-sectional view of a base of the present invention;

FIG. 3 is a schematic view of the adjusting ring of the present invention;

FIG. 4 is a schematic view of a connecting shaft of the present invention;

FIG. 5 is a schematic view of the test tube fixing ring of the present invention.

In the figure: 1-base, 2-support column fixing base, 3-bracket support column, 4-adjusting ring, 5-connecting shaft, 6-test tube fixing ring, 101-box, 1011-rotating speed adjusting knob, 1012-switch button, 102-cover, 1021-rotating shaft mounting hole, 1022-motor shaft mounting hole, 103-test tube rotary table, 104-rotating shaft, 105-driven wheel, 106-belt, 107-right side driving gear, 108-left side driving gear, 109-motor, 110-motor mounting ring, 11-motor controller, 112-battery, 401-first rectangular boss, 402-first notch, 403-first mounting hole, 501-second rectangular boss, 502-second mounting hole, 601-third rectangular boss, 602-third notch, 603-third mounting hole, 604-circular through groove, 605-ball.

Detailed Description

As shown in fig. 1 to 5, the test tube rack for chemical experiments according to the present invention adopts the technical scheme that the test tube rack comprises a base 1, a support column fixing base 2, a support column 3, an adjusting ring 4, a connecting shaft 5, and a test tube fixing ring 6; the test tube fixing device comprises a base 1, a support column fixing seat 2, a support column 3, an adjusting ring 4, a connecting shaft 5 and a test tube fixing ring 6; the base 1 comprises a box 101 and a cover 102, wherein a rotating speed adjusting knob 1011 and a switch button 1012 are respectively arranged on the left side and the right side of the middle of the front side wall of the box 101, the cover 102 is arranged on the upper surface of the box 101, a motor shaft mounting hole 1022 is arranged at the center of the upper surface of the box 101, a motor mounting ring 110 is fixedly connected with the center of the bottom of an inner cavity of the box 101, a motor controller 111 and a battery 112 are respectively and fixedly arranged on the left side and the right side of the motor mounting ring 110, the motor mounting ring 110 is connected with a motor 109 in an interference fit manner, a right driving gear 107 and a left driving gear 108 are sequentially fixed on an output shaft of the motor 109, the left driving gear 108 and the right driving gear 107 are respectively and rotatably connected with a left driven wheel 105 and a right driven wheel 105 through a belt 106, the left driven wheel 105 and the right driven wheel 105 are respectively sleeved with a rotating shaft 104, and the left rotating shaft 104 and the right rotating shaft 104 respectively penetrate through the rotating shaft mounting holes 1021 on the left side and the upper surface of the cover 102, the tops of the left and right rotating shafts 104 are respectively and fixedly connected with a test tube turntable 103.

The center of the upper surface of the cover 102 is fixedly connected with the support post fixing seat 2.

The support pillar 3 is sleeved on the central hole of the support pillar fixing seat 2.

The support column 3 is sleeved with the adjusting ring 4, a first rectangular boss 401 is arranged on the side wall of the adjusting ring 4, a first notch 402 is formed in the middle of the first rectangular boss 401, and first mounting holes 403 are symmetrically formed in two inner side walls of the first notch 402.

The side wall of the adjusting ring 4 is rotatably connected with one end of the connecting shaft 5, second rectangular bosses 501 are respectively arranged at the left end and the right end of the connecting shaft 5, and a second mounting hole 502 is formed in the center of each second rectangular boss 501.

The other end of the connecting shaft 5 is rotatably connected with the test tube fixing ring 6, a third rectangular boss 601 is arranged on the outer side wall of the test tube fixing ring 6, a third groove 602 is formed in the middle of the third rectangular boss 601, third mounting holes 603 are symmetrically formed in two inner side walls of the third groove 602, a circular through groove 604 is formed in the center of the inner side wall of the test tube fixing ring 6, and balls 605 are uniformly arranged in the circular through groove 604.

The adjusting ring 4 with 5 one end of connecting axle is passed through first notch 402 with second rectangle boss 501 rotates and is connected, 5 other ends of connecting axle with the fixed ring 6 of test tube passes through second rectangle boss 501 with third notch 602 rotates and is connected.

The working principle of the utility model is as follows: the test tube rack is used under two conditions, when a test tube needs to be positioned in the air or heated under an alcohol lamp, the test tube needs to be clamped at the tube opening of the test tube, then the test tube is placed in the test tube fixing ring 6, the angle and the position of the adjusting ring 4 and the connecting shaft 5 are adjusted, and the test tube is vertically fixed at a required space position or the upper part of the alcohol lamp; when reagent stirring is added to needs and the experiment is carried out, at first arrange the solid fixed ring 6 adjustment of test tube in directly over the test tube carousel 103, then insert the test tube gu fixed ring 6 to place its bottom in the test tube carousel 103, after dripping into reagent, open shift knob 1012, adjust set up rotational speed adjust knob 1011, can realize that the test tube at the uniform velocity rotates, drive inside reagent homogeneous mixing.

Electrical connections or structures not described in detail herein are prior art.

Although the present invention has been described in detail with reference to the specific embodiments, the present invention is not limited to the above embodiments, and various changes and modifications without inventive changes may be made within the knowledge of those skilled in the art without departing from the spirit of the present invention.

Claims

1. The utility model provides a test-tube rack for chemistry experiments which characterized in that: comprises a base (1), a support pillar fixing seat (2), a bracket support pillar (3), an adjusting ring (4), a connecting shaft (5) and a test tube fixing ring (6); the base (1) comprises a box (101) and a cover (102), a rotating speed adjusting knob (1011) and a switch button (1012) are respectively arranged on the left side and the right side in the middle of the front side wall of the box (101), the cover (102) is installed on the upper surface of the box (101), a motor installing ring (110) is fixedly connected to the center of the bottom of an inner cavity of the box (101), the motor installing ring (110) is connected with a motor (109) in an interference fit manner, a right driving gear (107) and a left driving gear (108) are sequentially fixed on an output shaft of the motor (109), the left driving gear (108) and the right driving gear (107) are respectively connected with a left driven wheel (105) and a right driven wheel (105) in a rotating manner through a belt (106), the left driven wheel (105) and the right driven wheel (105) are respectively sleeved with a rotating shaft (104), and the rotating shaft (104) penetrates through rotating shaft installing holes (1021) on the left side and the right side of the upper surface of the cover (102), control pivot (104) top difference fixed connection test tube carousel (103), lid (102) upper surface center fixed connection support column fixing base (2), support column fixing base (2) center trompil suit support column (3), support column (3) suit adjustable ring (4), adjustable ring (4) lateral wall rotates to be connected connecting axle (5) one end, connecting axle (5) other end rotates to be connected the solid fixed ring of test tube (6).

2. The test tube rack for chemical experiments according to claim 1, characterized in that: the motor installation structure is characterized in that a motor controller (111) and a battery (112) are fixedly installed on the left side and the right side of a motor installation ring (110) at the bottom of the base (1) respectively, and a motor shaft installation hole (1022) is formed in the center of the upper surface of the box (101).

3. The test tube rack for chemical experiments according to claim 2, characterized in that: the adjusting ring is characterized in that a first rectangular boss (401) is arranged on the side wall of the adjusting ring (4), a first notch (402) is formed in the middle of the first rectangular boss (401), and first mounting holes (403) are symmetrically formed in two inner side walls of the first notch (402).

4. A test tube rack for chemical experiments according to claim 3, characterized in that: the left end and the right end of the connecting shaft (5) are respectively provided with a second rectangular boss (501), and the center of the second rectangular boss (501) is provided with a second mounting hole (502).

5. A test-tube rack for chemical experiments according to claim 4, characterized in that: the test tube fixing ring is characterized in that a third rectangular boss (601) is arranged on the outer side wall of the test tube fixing ring (6), a third notch (602) is arranged in the middle of the third rectangular boss (601), third mounting holes (603) are symmetrically formed in two inner side walls of the third notch (602), a circular through groove (604) is formed in the center of the inner side wall of the test tube fixing ring (6), and balls (605) are uniformly arranged in the circular through groove (604).

6. A test-tube rack for chemical experiments according to claim 5, characterized in that: adjusting ring (4) with connecting axle (5) one end is passed through first notch (402) with second rectangle boss (501) rotate to be connected, connecting axle (5) other end with test tube fixed ring (6) pass through second rectangle boss (501) with third notch (602) rotate to be connected.