阅读说明：本技术 一种化学实验用试管洗涤设备 (Test tube washing equipment for chemistry experiments ) 是由 游静 于 2021-08-06 设计创作，主要内容包括：本发明涉及一种洗涤设备,尤其涉及一种化学实验用试管洗涤设备。本发明提供一种能自动进行清洗、能及时擦干以及制造成本较低的化学实验用试管洗涤设备。一种化学实验用试管洗涤设备,包括：第一支撑板和第一支撑杆,第一支撑板上两侧均设有第一支撑杆；第二支撑板,两个第一支撑杆顶部之间设有第二支撑板；可转动试管架,第一支撑板上中间转动式设有可转动试管架；气缸,第二支撑板中间上侧安装有气缸；第一毛刷,气缸的输出轴上设有第一毛刷。本发明通过设有往复转动机构,气缸运转带动第一毛刷运转,从而带动往复转动机构运转,使得能够一边清洗一边转动,实现往复转动的效果。(The invention relates to washing equipment, in particular to test tube washing equipment for a chemical experiment. The invention provides the test tube washing equipment for the chemical experiment, which can automatically clean and timely dry and has lower manufacturing cost. A test tube washing apparatus for chemical experiments, comprising: the support device comprises a first support plate and first support rods, wherein the first support rods are arranged on two sides of the first support plate; the second supporting plate is arranged between the tops of the two first supporting rods; the test tube rack can be rotated, and the rotatable test tube rack is rotatably arranged in the middle of the first supporting plate; the air cylinder is arranged on the upper side in the middle of the second supporting plate; the output shaft of the cylinder is provided with a first brush. According to the invention, the reciprocating rotation mechanism is arranged, and the cylinder operates to drive the first brush to operate, so that the reciprocating rotation mechanism is driven to operate, the first brush can rotate while cleaning is carried out, and the effect of reciprocating rotation is realized.)

1. A test tube washing equipment for chemistry experiments, characterized by includes:

the support device comprises a first support plate (2) and first support rods (3), wherein the first support rods (3) are arranged on two sides of the first support plate (2);

a second support plate (4), wherein the second support plate (4) is arranged between the tops of the two first support rods (3);

the test tube rack comprises a rotatable test tube rack (5), wherein the rotatable test tube rack (5) is rotatably arranged in the middle of the first supporting plate (2);

the cylinder (6) is mounted on the upper side of the middle of the second supporting plate (4);

the output shaft of the cylinder (6) is provided with a first brush (1);

the reciprocating rotating mechanism (7) is arranged among the first brush (1), the rotatable test tube rack (5) and the first supporting rod (3) on one side;

and a liquid injection mechanism (8) is arranged between the second supporting plate (4) and the first brush (1).

2. A test tube washing apparatus for chemical experiments according to claim 1, wherein the reciprocating rotary mechanism (7) comprises:

a second support rod (71), wherein the second support rod (71) is arranged at the lower side of the first support rod (3) at one side;

the rotating shaft (72) is rotatably arranged on the second supporting rod (71);

a spur gear (73), wherein the rotating shaft (72) is provided with the spur gear (73);

the gear set (74) is arranged between the lower side of the rotatable test tube rack (5) and the rotating shaft (72);

the upper side of the first brush (1) is provided with a spur rack (75), and the spur rack (75) is matched with the spur gear (73).

3. Test tube washing apparatus for chemical experiments according to claim 2, characterized in that the liquid injection mechanism (8) comprises:

a third supporting rod (81), wherein the second supporting plate (4) is provided with the third supporting rod (81);

a water injection tank (82) is arranged on the third supporting rod (81);

a button (83), the button (83) is arranged on the water injection tank (82) in a sliding way;

the button (83) is wound with the first spring (84), and two ends of the first spring (84) are respectively connected with the button (83) and the water injection tank (82);

two water pipes (86) are connected between the lower part of the water injection tank (82) and the upper side of the first brush (1);

the first wedge block (85) is arranged on the upper side of the first brush (1), and the first wedge block (85) is matched with the button (83).

4. A device for washing test tubes for chemical experiments according to claim 3, further comprising a liquid changing mechanism (9), wherein the liquid changing mechanism (9) comprises:

a fourth supporting rod (91), wherein the lower side of the inner wall of the water injection tank (82) is provided with the fourth supporting rod (91);

the hole-blocking liquid-changing rod (92) is arranged on the fourth supporting rod (91) in a sliding mode;

the hole-plugging liquid-changing rod (92) is wound with a second spring (93), and two ends of the second spring (93) are respectively connected with the fourth supporting rod (91) and the hole-plugging liquid-changing rod (92);

the bolt rod (95) is arranged on the hole-plugging liquid-changing rod (92) in a sliding manner;

the lower side of the outer wall of the water injection tank (82) is provided with a bolt plate (94), and the bolt plate (94) is matched with a bolt rod (95).

5. A test tube washing apparatus for chemical experiments according to claim 4, further comprising a clamping mechanism (10), wherein the clamping mechanism (10) comprises:

the fifth supporting rods (101) are arranged on two sides of the upper part of the rotatable test tube rack (5);

the outer sides of the two fifth supporting rods (101) are both provided with the clamping plates (102) in a sliding manner;

the third springs (103) are wound on the two fifth support rods (101), and two ends of each third spring (103) are respectively connected with the fifth support rods (101) and the clamping plate (102);

the lower sides of the two clamping plates (102) are respectively provided with a second wedge-shaped block (104);

two wedge-shaped rods (105) are arranged on the lower sides of the wedge-shaped rods (105) and the straight rack (75), and the second wedge-shaped block (104) is matched with the wedge-shaped rods (105).

6. A tube washing apparatus for chemical experiments, according to claim 5, characterized in that, it further comprises a fixing and positioning mechanism (11), and the fixing and positioning mechanism (11) comprises:

the sixth supporting rod (111) is arranged on one side of the first supporting plate (2) and the other side of the first supporting plate (2);

the upper sides of the two sixth supporting rods (111) are both provided with the ring sleeves (112) in a sliding manner, and the ring sleeves (112) are matched with the clamping plates (102);

the upper sides of the two sixth supporting rods (111) are respectively wound with the fourth spring (113), and two ends of the fourth spring (113) are respectively connected with the sixth supporting rods (111) and the ring sleeve (112).

7. The test tube washing device for the chemical experiment according to claim 6, further comprising a drying mechanism (12), wherein the drying mechanism (12) comprises:

a seventh supporting rod (121), wherein the seventh supporting rod (121) is arranged on the first supporting plate (2);

the seventh supporting rod (121) is rotatably provided with a second brush (122);

and the conveying belt (123) is wound between the lower side of the second brush (122) and the lower side of the rotatable test tube rack (5).

8. A test tube washing apparatus for chemical experiments according to claim 1, wherein the inside of the lower side of the first brush (1) is hollow.

Technical Field

The invention relates to washing equipment, in particular to test tube washing equipment for a chemical experiment.

Background

The test tube is the instrument that chemistry experiment room was commonly used, is used as in the reaction vessel of a small amount of reagent, and the test tube can divide into multiple such as ordinary test tube, utensil test tube and centrifugal test tube, and the test tube is after using, and some chemical agent can be remained to test tube inside, and what generally adopted the washing mode to the test tube at present is the manual cleaning mode, and this kind of mode has improved staff's intensity of labour, sometimes because of the human factor does not take the steady test tube of breaking into pieces easily.

Patent application CN207357742U, published Japanese 20180515 discloses a chemical test tube cleaning device, which comprises a first electric push rod, a support rod, a second electric push rod, a brush, an extension sponge, a ring-shaped sponge, a first electric cylinder, a second electric cylinder, a spring clamp plate, a motor and a base, wherein the support rod is installed at the lower end of the electric push rod, the second electric push rod is installed inside the support rod and extends to the outer end of the second electric push rod, the brush is arranged at the outer end of the second electric push rod, the design can clean test tubes with various pipe diameters, the motor is installed at the bottom end inside the base, the spring clamp plate is assembled at the upper end of the motor, the extension sponge is arranged inside the ring-shaped sponge and extends to the upper end of the ring-shaped sponge, the first electric cylinder is arranged at the outer end of the extension sponge, the second electric cylinder is installed at the outer end of the ring-shaped sponge, the design can clean the outer end surface of the test tube, the invention is convenient to use, the test tube cleaning device is convenient to operate, good in stability and high in reliability, improves the cleaning effect, and cannot wipe the cleaned test tube in time.

Therefore, according to the above situations, there is a need in the market to design a tube washing device for chemical experiments, which can automatically clean, dry in time, and has a low manufacturing cost.

Disclosure of Invention

The invention aims to provide test tube washing equipment for chemical experiments, which can automatically clean and timely dry and has low manufacturing cost, and can solve the problems that the manual cleaning mode is adopted in the background technology, the labor intensity of workers is improved, and sometimes test tubes are not stably taken and are easily broken due to manpower factors.

The technical scheme is as follows: a test tube washing apparatus for chemical experiments, comprising:

the support device comprises a first support plate and first support rods, wherein the first support rods are arranged on two sides of the first support plate;

the second supporting plate is arranged between the tops of the two first supporting rods;

the test tube rack can be rotated, and the rotatable test tube rack is rotatably arranged in the middle of the first supporting plate;

the air cylinder is arranged on the upper side in the middle of the second supporting plate;

the output shaft of the cylinder is provided with a first brush;

the reciprocating rotation mechanism is arranged among the first brush, the rotatable test tube rack and the first supporting rod on one side;

annotate the liquid mechanism, be equipped with between second backup pad and the first brush and annotate the liquid mechanism.

Advantageously, the reciprocal rotation mechanism comprises:

a second supporting rod is arranged at the lower side of the first supporting rod at one side;

the rotating shaft is rotatably arranged on the second supporting rod;

a spur gear is arranged on the rotating shaft;

the gear set is arranged between the lower side of the rotatable test tube rack and the rotating shaft;

the upper side of the first brush is provided with a spur rack which is matched with a spur gear.

Advantageously, the injection mechanism comprises:

the second supporting plate is provided with a third supporting rod;

the third supporting rod is provided with a water injection tank;

the button is arranged on the water injection tank in a sliding manner;

the button is wound with the first spring, and two ends of the first spring are respectively connected with the button and the water injection tank;

two water pipes are connected between the lower part of the water injection tank and the upper side of the first hairbrush;

the first wedge block is arranged on the upper side of the first brush and matched with the button.

Beneficially, a fluid exchange mechanism is also included, the fluid exchange mechanism comprising:

a fourth supporting rod is arranged on the lower side of the inner wall of the water injection tank;

the hole-plugging liquid-changing rod is arranged on the fourth supporting rod in a sliding mode;

the hole-plugging liquid-changing rod is wound with a second spring, and two ends of the second spring are respectively connected with the fourth supporting rod and the hole-plugging liquid-changing rod;

the plug rod is arranged on the hole-plugging liquid-changing rod in a sliding manner;

the bolt board, water injection tank outer wall downside are equipped with the bolt board, and the bolt board cooperates with the bolt pole.

Advantageously, a clamping mechanism is also included, the clamping mechanism comprising:

the fifth supporting rods are arranged on two sides of the upper part of the rotatable test tube rack;

the outer sides of the two fifth supporting rods are both provided with clamping plates in a sliding manner;

the two fifth support rods are wound with third springs, and two ends of each third spring are connected with the fifth support rods and the clamping plates respectively;

the lower sides of the two clamping plates are respectively provided with a second wedge-shaped block;

the lower side of the straight rack is provided with two wedge-shaped rods, and the second wedge-shaped block is matched with the wedge-shaped rods.

Advantageously, a fixed detent mechanism is also included, the fixed detent mechanism comprising:

the sixth supporting rod is arranged on one side of the first supporting plate and the other side of the first supporting plate;

the upper sides of the two sixth supporting rods are both provided with ring sleeves in a sliding manner, and the ring sleeves are matched with the clamping plates;

and the upper sides of the two sixth supporting rods are wound with fourth springs, and two ends of each fourth spring are connected with the sixth supporting rods and the ring sleeves respectively.

Advantageously, the drying machine further comprises a drying mechanism, wherein the drying mechanism comprises:

the seventh supporting rod is arranged on the first supporting plate;

the seventh supporting rod is rotatably provided with a second brush;

and a conveying belt is wound between the lower side of the second brush and the lower side of the rotatable test tube rack.

Advantageously, the first brush is hollow on the inside of the lower side.

In summary, the advantages of the invention are as follows: 1. according to the invention, the reciprocating rotation mechanism is arranged, and the cylinder operates to drive the first brush to operate, so that the reciprocating rotation mechanism is driven to operate, the first brush can rotate while cleaning is carried out, and the effect of reciprocating rotation is realized;

2. by arranging the liquid injection mechanism, the first hairbrush operates to drive the liquid injection mechanism to operate, so that the first hairbrush can be loaded, and the liquid injection effect is realized;

3. through the arrangement of the liquid changing mechanism, people pull the liquid changing mechanism to operate, so that different cleaning liquids flow onto the first brush, and the liquid changing effect is realized;

4. the clamping mechanism is arranged, so that the test tube can be clamped by the operation of the clamping mechanism, and the clamping effect is realized;

5. the clamping mechanism is matched with the clamping mechanism and operates, so that the clamping mechanism components can be kept in a clamped state to realize the effect of fixed clamping;

6. through being equipped with and stroking out with fingers dry mechanism, dry mechanism and rotatable test-tube rack cooperation of stroking out with fingers, people put the test tube after having washed down with fingers dry mechanism's part on, rotatable test-tube rack operation drives and stroked out with fingers dry mechanism's operation to make and stroked out with fingers dry mechanism and can brush the test tube futilely, realize stroking out with fingers dry effect.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic perspective view of the reciprocating rotation mechanism of the present invention.

Fig. 3 is a schematic perspective view of the liquid injection mechanism of the present invention.

Fig. 4 is a schematic perspective view of the liquid changing mechanism of the present invention.

Fig. 5 is a schematic perspective view of the clamping mechanism of the present invention.

Fig. 6 is a schematic perspective view of the fixing and positioning mechanism of the present invention.

Fig. 7 is a schematic perspective view of the drying mechanism of the present invention.

Reference numerals: 1. a first brush, 2, a first support plate, 3, a first support rod, 4, a second support plate, 5, a rotatable test tube rack, 6, a cylinder, 7, a reciprocating rotation mechanism, 71, a second support rod, 72, a rotating shaft, 73, a spur gear, 74, a gear set, 75, a spur rack, 8, a liquid injection mechanism, 81, a third support rod, 82, a water injection tank, 83, a button, 84, a first spring, 85, a first wedge block, 86, a water pipe, 9, a liquid change mechanism, 91, a fourth support rod, 92, a hole-blocking liquid change rod, 93, a second spring, 94, a latch plate, 95, a latch rod, 10, a clamping mechanism, 101, a fifth support rod, 102, a clamping plate, 103, a third spring, 104, a second wedge block, 105, a wedge rod, 11, a fixed clamping mechanism, 111, a sixth support rod, 112, a ring sleeve, 113, a fourth spring, 12, a dry smoothing mechanism, 121, a seventh support rod, 122. second brush, 123, conveyer belt.

Detailed Description

All of the features disclosed in this application, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations where mutually exclusive features and/or steps are present.

Any feature disclosed in this application (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to fig. 1 to 7 in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 7, a test tube washing device for chemical experiments, which comprises a first brush 1, a first support plate 2, first support rods 3, a second support plate 4, a rotatable test tube rack 5, a cylinder 6, a reciprocating rotation mechanism 7 and a liquid injection mechanism 8, wherein the first support rods 3 are arranged on the left side and the right side of the first support plate 2, the second support plate 4 is arranged between the tops of the two first support rods 3, the rotatable test tube rack 5 is rotatably arranged in the middle of the first support plate 2, the cylinder 6 is arranged on the upper side of the middle of the second support plate 4, the first brush 1 is arranged on an output shaft of the cylinder 6, the reciprocating rotation mechanism 7 is arranged between the first support rods 3 on the first brush 1, the rotatable test tube rack 5 and the right side, and the liquid injection mechanism 8 is arranged between the second support plate 4 and the first brush 1.

The reciprocating rotation mechanism 7 comprises a second support rod 71, a rotating shaft 72, a straight gear 73, a gear set 74 and a straight rack 75, the second support rod 71 is arranged on the lower side of the first support rod 3 on the right side, the rotating shaft 72 is rotatably arranged on the left side of the second support rod 71, the straight gear 73 is arranged on the right side of the rotating shaft 72, the gear set 74 is arranged between the lower side of the rotatable test tube rack 5 and the left side of the rotating shaft 72, the straight rack 75 is arranged on the upper side of the first brush 1, and the straight rack 75 is matched with the straight gear 73.

Annotate liquid mechanism 8 including third bracing piece 81, water injection tank 82, button 83, first spring 84, first wedge 85 and water pipe 86, second backup pad 4 rear side left part is equipped with third bracing piece 81, third bracing piece 81 front side is equipped with water injection tank 82, the right front side sliding type of water injection tank 82 is equipped with button 83, around having first spring 84 on the button 83, first spring 84 both ends are connected with button 83 and water injection tank 82 respectively, be connected with two water pipes 86 between water injection tank 82 lower part right front side and the first brush 1 upside, first brush 1 upside is equipped with first wedge 85, first wedge 85 cooperates with button 83.

Still including trading liquid mechanism 9, it trades liquid mechanism 9 including fourth bracing piece 91 to trade liquid mechanism, stifled hole trades liquid pole 92, second spring 93, bolt board 94 and bolt pole 95, the anterior downside of water injection jar 82 inner wall is equipped with fourth bracing piece 91, it is equipped with stifled hole and trades liquid pole 92 to slide type on the fourth bracing piece 91, around having second spring 93 on the stifled hole trades liquid pole 92, second spring 93 both ends are connected with fourth bracing piece 91 and stifled hole trades liquid pole 92 respectively, the sliding type is equipped with bolt pole 95 before stifled hole trades liquid pole 92 left side, the anterior downside of water injection jar 82 outer wall is equipped with bolt board 94, bolt board 94 and bolt pole 95 cooperation.

Still including clamping mechanism 10, clamping mechanism 10 is including fifth bracing piece 101, splint 102, third spring 103, second wedge 104 and wedge 105, both sides all are equipped with fifth bracing piece 101 around rotatable test-tube rack 5 upper portion, two fifth bracing piece 101 outsides all slidingtype are equipped with splint 102, all around having third spring 103 on two fifth bracing pieces 101, third spring 103 both ends are connected with fifth bracing piece 101 and splint 102 respectively, two splint 102 lower part right sides all are equipped with second wedge 104, spur rack 75 downside is equipped with two wedge 105, second wedge 104 and the cooperation of wedge 105.

Still including fixed screens mechanism 11, fixed screens mechanism 11 is including sixth bracing piece 111, ring cover 112 and fourth spring 113, left side all is equipped with sixth bracing piece 111 on first bracing piece 2 and the first bracing piece 2 rear side, two sixth bracing piece 111 upsides all are slidingtype and are equipped with ring cover 112, ring cover 112 and splint 102 cooperation, two sixth bracing piece 111 upsides all around having fourth spring 113, fourth spring 113 both ends are connected with sixth bracing piece 111 and ring cover 112 respectively.

The test tube rack is characterized by further comprising a drying mechanism 12, wherein the drying mechanism 12 comprises a seventh supporting rod 121, a second brush 122 and a conveying belt 123, the seventh supporting rod 121 is arranged on the front side of the first supporting plate 2, the seventh supporting rod 121 is rotatably provided with the second brush 122, and the conveying belt 123 is wound between the lower side of the second brush 122 and the lower side of the rotatable test tube rack 5.

When people need wash the test tube that the chemistry experiment was used, can use this kind of test tube washing equipment for chemistry experiment, at first people need put the test tube on rotatable test-tube rack 5, then pour the washing medicament of washing into annotate liquid mechanism 8, start cylinder 6 afterwards, the telescopic link downstream of cylinder 6 drives first brush 1 downstream, thereby drive reciprocating rotation mechanism 7 downstream, and make reciprocating rotation mechanism 7 drive rotatable test-tube rack 5 and rotate, and then make reciprocating rotation mechanism 7 drive annotate liquid mechanism 8 operation, make and rotate while wasing, when cylinder 6 upward movement, the telescopic link upward movement of cylinder 6 drives first brush 1 and the equal upward movement of reciprocating rotation mechanism 7 and resets, test tube washing finishes this moment, close cylinder 6, people take out the test tube that has washed.

After people put the test tube on rotatable test-tube rack 5, first brush 1 downstream drives spur rack 75 downstream, make spur rack 75 and spur gear 73 mesh, spur rack 75 downstream makes spur gear 73 rotate, thereby drive pivot 72 and rotate, and then drive gear train 74 and rotate, when gear train 74 rotates, gear train 74 drives rotatable test-tube rack 5 and rotates, thereby drive the test tube and rotate, make and rotate on one side and wash, and when first brush 1 upstream drive spur rack 75 upward movement resets, make spur rack 75 and spur gear 73 not mesh, spur gear 73 stall, thereby drive pivot 72 and gear train 74 all stall, and then drive rotatable test-tube rack 5 stall, people can take out the test tube this moment.

People pour two kinds of different washing liquids into water injection tank 82 earlier, when first brush 1 downstream, first brush 1 drives first wedge 85 downstream, thereby make first wedge 85 and button 83 contact, first wedge 85 downstream makes button 83 downstream, first spring 84 is compressed, thereby make two kinds of cleaning solution flow to first brush 1 through two water pipes 86 on, make first brush 1 can wash the test tube, realize the effect of annotating the liquid, and when first brush 1 upstream drives first wedge 85 upward movement, make first wedge 85 and button 83 contactless, because first spring 84 resets and drives button 83 upward movement, thereby make two kinds of washing liquids can not flow on first brush 1.

When people need to change a cleaning liquid, people can pull the plug rod 95 to move towards the left front, so as to drive the hole-blocking liquid-changing rod 92 to move towards the left front, the second spring 93 is compressed, so that the hole-blocking liquid-changing rod 92 blocks the water pipe 86 at the right rear side, then people push the plug rod 95 to move towards the left rear, so that the plug rod 95 is aligned with the small hole in the plug plate 94 and is clamped on the plug plate 94, meanwhile, another cleaning liquid can flow onto the first brush 1 through the water pipe 86 at the right front side, the liquid-changing effect can be realized, when the liquid does not need to be changed, people pull the plug rod 95 to move towards the right front, so that the plug rod 95 is not clamped on the plug plate 94, then the hands are loosened, and the hole-blocking liquid-changing rod 92 is driven to move towards the right rear due to the reset of the second spring 93, so that the hole-blocking liquid-changing rod 92 does not block the water pipe 86 at the right rear side.

When spur rack 75 moves down, spur rack 75 drives wedge pole 105 downstream, make wedge pole 105 and the second wedge block 104 contact of homonymy, thereby make second wedge block 104 move in opposite directions, and then drive splint 102 move in opposite directions, third spring 103 is compressed, make splint 102 can press from both sides the test tube tightly, and when wedge pole 105 continued downstream, make wedge pole 105 and the second wedge block 104 contactless of homonymy, people's manual fixing splint 102 makes it can not reset this moment, when spur rack 75 moves up and drives wedge pole 105 and move to splint 102 top, people loosen splint 102, third spring 103 resets and drives splint 102 dorsal movement, thereby drive second wedge block 104 dorsal movement.

People need to manually pull the ring sleeve 112 to move upwards first, when the clamping plates 102 move in opposite directions, the fourth spring 113 is compressed, so that the ring sleeve 112 cannot block the clamping plates 102 to move in opposite directions, when the clamping plates 102 cross the ring sleeve 112, people can release hands, the fourth spring 113 resets to drive the ring sleeve 112 to move downwards to reset, at the moment, the ring sleeve 112 blocks the clamping plates 102 to enable the clamping plates 102 not to move backwards to reset, so that the clamping plates 102 can clamp test tubes, the clamping plates 102 can always clamp the test tubes during test tube washing, the clamping effect is achieved, when people need to take out the test tubes, the ring sleeve 112 is manually pulled to move upwards, the ring sleeve 112 does not block the clamping plates 102, the third spring 103 drives the reset clamping plates 102 to move backwards to reset, then hands are released, the fourth spring 113 resets to drive the ring sleeve 112 to move downwards to reset, and at the moment, people can take out the test tubes.

People take out the back with the test tube that washes, again with this test tube cover on second brush 122 upside down, when washing next test tube, rotatable test-tube rack 5 rotates and drives conveyer belt 123 and rotate, thereby drive second brush 122 and rotate, make second brush 122 can brush the test tube that washes well futilely, realize stroking up the effect futilely, when rotatable test-tube rack 5 stall, make conveyer belt 123 stall, thereby make second brush 122 stall, people can take out the test tube of stroking up this moment.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.