CN209128010U - Unidirectional torsion clutch and sample bottle automatic cap-rotating device for sample bottle automatic cap-rotating device - Google Patents

Abstract

The utility model discloses a kind of unidirectional torsion clutches for sample bottle automatic cap-rotating device, including unilateral bearing and torsion shaft coupling, unilateral bearing and torsion shaft coupling are coaxially disposed, the outer ring of unilateral bearing and the outer ring of torsion shaft coupling are fixed to each other to form the first connector, the inner ring of unilateral bearing and the inner ring of torsion shaft coupling are fixed to each other to form the second connector, and the first connector and the second connector are connected with the rotary drive unit of sample bottle automatic cap-rotating device and swivel head respectively.The invention also discloses a kind of sample bottle automatic cap-rotating devices, including sample bottle fixed cell, for body to be fixed；Swivel head sets bottle cap for card；Rotary drive unit drives bottle cap rotation for driving swivel head to rotate；Fixed bracket, for installing swivel head and rotary drive unit；Elevation driving unit, for driving fixed bracket oscilaltion.The unidirectional torsion clutch and lid rotator of the utility model all have the advantages that structure is simple, spiral cover is easy to be reliable.

Description

Unidirectional torsion clutch and sample bottle automatic cap-rotating device for sample bottle automatic cap-rotating device

Technical field

The utility model relates generally to sample analysis technology field, refers in particular to a kind of unidirectional torsion for sample bottle automatic cap-rotating device Power clutch and sample bottle automatic cap-rotating device.

Background technique

In coal property test industry, its working environment is poor, due to large labor intensity etc., automation, intelligence to equipment It is higher and higher level requirement to be changed.Especially during the entire process of the automatic weighing of coal sample, need repeatedly to uncap to sample bottle, Closing lid operation needs to configure Cover whirling Machine in multiple occasions to be uncapped or closing lid.The characteristics of because of sample bottle threaded cap, exists and tighten The skimble-scamble situation of torque after being easy to appear a sample bottle in practical application closing lid being tightened in certain Cover whirling Machine, then is revolved with this The case where lid machine is uncapped and is twisted not open；Also a sample bottle has been easy to appear to tighten in a Cover whirling Machine, and at another The case where twisting not open in Cover whirling Machine, above situation have seriously affected spiral cover efficiency.

Utility model content

The technical problems to be solved in the utility model is that for technical problem of the existing technology, this is practical new Type provides the unidirectional torsion clutch and sample that a kind of spiral cover is reliable, structure is simple, is used for sample bottle automatic cap-rotating device easily to operate Bottle automatic cap-rotating device.

In order to solve the above technical problems, the utility model proposes technical solution are as follows:

A kind of unidirectional torsion clutch for sample bottle automatic cap-rotating device, including unilateral bearing and torsion shaft coupling, it is described Unilateral bearing and torsion shaft coupling are coaxially disposed, and the outer ring of the unilateral bearing and the outer ring of torsion shaft coupling are fixed to each other to be formed First connector, the inner ring of the unilateral bearing and the inner ring of torsion shaft coupling are fixed to each other to form the second connector, and described A connection piece and the second connector are connected with the rotary drive unit of the sample bottle automatic cap-rotating device and swivel head respectively.

As a further improvement of the above technical scheme:

The inner ring of the unilateral bearing and the inner ring of torsion shaft coupling are sheathed on the output shaft of the rotary drive unit On, the outer ring of the unilateral bearing and the outer ring of torsion shaft coupling are installed on a fixed frame, the fixed frame and the rotation Rotary head fastening is connected.

The inner ring of the unilateral bearing and the inner ring of torsion shaft coupling are sheathed in a connecting shaft, and the one of the connecting shaft End is connected with swivel head fastening, and the outer ring of the unilateral bearing and the outer ring of torsion shaft coupling are installed in a connecting bracket, The connecting bracket is connected with the rotary drive unit.

The invention also discloses a kind of sample bottle automatic cap-rotating devices, including

Sample bottle fixed cell, for the body for being placed in sample bottle at predetermined spiral cover position to be fixed；

Swivel head is installed on the top of the predetermined spiral cover position, the bottle cap of sample bottle is set for card；

Rotary drive unit is connected with the swivel head, and for driving swivel head to rotate, drive is arranged in swivel head Bottle cap rotation is to be uncapped or closing lid operation；

Fixed bracket, for installing swivel head and rotary drive unit；

Elevation driving unit, for driving fixed bracket oscilaltion, so that swivel head oscilaltion is driven, to realize bottle The division of lid and body；

It is provided between the rotary drive unit and swivel head as described above for the unidirectional of sample bottle automatic cap-rotating device Torsion clutch.

As a further improvement of the above technical scheme:

The swivel head includes the ontology with roof and peripheral wall, and opening is formed on the bottom of the ontology, for accommodating bottle Lid；The card cap unit for bottle cap described in clamping is provided on the circumferencial direction of the peripheral wall.

The card cap unit includes multiple spring-loaded plungers for being distributed in peripheral wall circumferencial direction.

The inner surface of the roof is provided with frictional disk, for increasing and the frictional force of bottle cap.

The sample bottle fixed cell includes the extensible member positioned at the predetermined spiral cover position side, is used for and predetermined spiral cover position The side wall at the place of setting cooperates to realize the clamping to body.

The support bracket fastened lower section is provided with jacking unit, for will slowly fix during spiral cover is uncapped Bracket jacks upwards, and the lower pressure of elevation driving unit part is offset during spiral cover carries out closing lid.

Be provided on the fixed bracket for detect in swivel head whether the bottle cap detection unit containing bottle cap.

Compared with the prior art, the advantages of the utility model are:

(1) the unidirectional torsion clutch for sample bottle automatic cap-rotating device of the utility model, passes through unilateral bearing and torsion Cooperation between shaft coupling can be realized torque when torque when uncapping is greater than closing lid, thereby may be ensured that the bottle cap screwed is equal It can smoothly open, and structure is simple, easy to operate.

(2) the sample bottle automatic cap-rotating device of the utility model, after body is fixed by sample bottle fixed cell, then passes through Rotary drive unit drives swivel head to rotate, and drives bottle cap rotation to carry out closing lid or divide Gai Zuoye, and structure is simple, operation is simple Just.

(3) the sample bottle automatic cap-rotating device of the utility model, is provided with card cap unit on the peripheral wall of swivel head, to bottle cap into Row clamping, while frictional disk is provided on roof, to guarantee that bottle cap is rotated synchronously with swivel head, guarantee the reliable of spiral cover Property.Card cap unit uses spring-loaded plunger, and structure is simple, is easily achieved.

(4) the sample bottle automatic cap-rotating device of the utility model is provided with jacking unit in support bracket fastened lower section, in revolving bottle During lid is uncapped, elevation driving unit provides certain lower pressure, is pressing against body, and guarantee frictional disk is tight with bottle disk Contiguity touching, bottle cap is unscrewed, the operation of elevation driving unit is stopped；Slowly hold-down support is jacked upwards by jacking unit again To adapt to the stroke of uncapping of bottle cap；In addition, offsetting lifting driving by jacking unit during rotary bottle cover is uncapped The lower pressure of unit part；To guarantee the reliability uncapped with closing lid.

Detailed description of the invention

Fig. 1 is the implementation example figure of the unidirectional torsion clutch of the utility model in specific application.

Fig. 2 is the structural schematic diagram of the unidirectional torsion clutch in Fig. 1.

Fig. 3 is the structural schematic diagram of the lid rotator of the utility model.

Fig. 4 is one of process status figure of uncapping of the lid rotator of the utility model.

Fig. 5 is that the lid rotator of the utility model uncaps the two of process status figure.

Fig. 6 is that the lid rotator of the utility model uncaps the three of process status figure.

Fig. 7 is that the lid rotator of the utility model uncaps the four of process status figure.

Fig. 8 is that the lid rotator of the utility model uncaps the five of process status figure.

Fig. 9 is that the lid rotator of the utility model uncaps the six of process status figure.

Figure 10 is that the lid rotator of the utility model uncaps the seven of process status figure.

Figure 11 is one of the closing lid process status figure of lid rotator of the utility model.

Figure 12 is the two of the closing lid process status figure of the lid rotator of the utility model.

Figure 13 is the three of the closing lid process status figure of the lid rotator of the utility model.

Figure 14 is the four of the closing lid process status figure of the lid rotator of the utility model.

Figure 15 is state diagram of the jacking component of the utility model when uncapping.

Figure 16 is state diagram of the jacking component of the utility model in closing lid.

Figure label indicates: 1, sample bottle fixed cell；101, extensible member；2, fixed bracket；3, swivel head；301, roof； 302, peripheral wall；303, frictional disk；4, rotary drive unit；401, rotating electric machine；4011, output shaft；402, unidirectional torsion clutch Device；4021, unilateral bearing；4022, torsion shaft coupling；4023, fixed frame；5, elevation driving unit；6, card cap unit；601, bullet Spring plunger；7, unit is jacked；8, bottle cap detection unit；801, bottle cap detection piece；802, detection hole；9, sample bottle；901, body； 902, bottle cap.

Specific embodiment

The utility model is further described below in conjunction with Figure of description and specific embodiment.

As depicted in figs. 1 and 2, the unidirectional torsion clutch for sample bottle automatic cap-rotating device of the present embodiment, including it is unidirectional Bearing 4021 and torsion shaft coupling 4022, unilateral bearing 4021 and torsion shaft coupling 4022 are coaxially disposed, unilateral bearing 4021 Outer ring and the outer ring of torsion shaft coupling 4022 are fixed to each other to form the first connector, the inner ring and torsion shaft coupling of unilateral bearing 4021 The inner ring of device 4022 is fixed to each other to form the second connector, the first connector and the second connector respectively with sample bottle automatic cap-rotating device Rotary drive unit 4 be connected with swivel head 3.As shown in Fig. 2, specifically, the inner ring and torsion shaft coupling of unilateral bearing 4021 4022 inner ring is sheathed on rotary drive unit 4(such as rotating electric machine 401) output shaft 4011 on, unilateral bearing 4021 it is outer The outer ring of circle and torsion shaft coupling 4022 is installed on a fixed frame 4023, and fixed frame 4023 is specially ring set, unilateral bearing In in ring set, one end of ring set is then connected with the fastening of swivel head 3 for the outer ring swelling of 4021 outer ring and torsion shaft coupling 4022.? When rotating electric machine 401 rotates in the forward direction progress closing lid, unilateral bearing 4021 is freely rotated at this time, and torsion transmission path is motor output 4022 inner rings of axis 4011 → torsion shaft coupling → 4022 outer rings of torsion shaft coupling → outer ring 4023 → swivel head of fixed frame, output Torque size is that torsion shaft coupling 4022 sets torque；When the reverse rotation of rotating electric machine 401 is uncapped, unilateral bearing at this time 4021 inner ring and outer ring are locked, and torsion transmission path is 4011 → unilateral bearing of motor output shaft, 4021 inner rings → unilateral bearing 4021 outer rings → outer ring 4023 → swivel head of fixed frame, the torque size of output are 401 output torque of rotating electric machine.Actually answering Used time, torsion shaft coupling 4022 sets torque and is less than 401 output torque of rotating electric machine, if the torque of rotating electric machine 401 is 20NM, The torque of torsion shaft coupling 4022 is 9NM；I.e. closing lid when be torsion shaft coupling 4022 set torque 9NM, used when uncapping Be 20 NM of Motor torque, when uncapping torque be greater than closing lid when torque, thereby may be ensured that the bottle cap screwed can be smooth It opens, and structure is simple, easy to operate.It certainly, in other embodiments, can also be by the inner ring of unilateral bearing 4021 and torsion The inner ring of power shaft coupling 4022 is sheathed in a connecting shaft, and one end of connecting shaft is connected with swivel head fastening, unilateral bearing 4021 outer ring and the outer ring of torsion shaft coupling 4022 are installed on a connecting bracket (such as ring set), and connecting bracket and rotation are driven Moving cell 4 is connected.

As shown in figure 3, the invention also discloses a kind of sample bottle automatic cap-rotating device, including sample bottle fixed cell 1, it is used for The body 901 for being placed in sample bottle 9 at predetermined spiral cover position is fixed；Swivel head 3 is being installed on predetermined spiral cover position just Top, for covering the bottle cap 902 of simultaneously clamping sample bottle 9；Rotary drive unit 4 is connected with swivel head 3, for driving swivel head 3 Rotation drives the bottle cap 902 being clamped in swivel head 3 rotation to be uncapped or closing lid operation；Fixed bracket 2, for installing Swivel head 3 and rotary drive unit 4；Elevation driving unit 5 is installed on the side of a fixing seat, for driving fixed bracket 2 Lower lifting, so that 3 oscilaltion of swivel head is driven, to realize the division of bottle cap 902 Yu body 901；Rotary drive unit 4 and rotation The unidirectional torsion clutch 402 as described above for being used for sample bottle automatic cap-rotating device is provided between rotary head 3.Pass through unilateral bearing Cooperation between 4021 and torsion shaft coupling 4022 can be realized torque when torque when uncapping is greater than closing lid, so as to protect Demonstrate,proving the bottle cap 902 screwed can smoothly open, and structure is simple, easy to operate；By sample bottle fixed cell 1 by body After 901 are fixed, then by rotary drive unit 4 drive swivel head 3 rotate, drive bottle cap 902 rotation with carry out closing lid or Divide Gai Zuoye, structure is simple, easy to operate.

In the present embodiment, swivel head 3 includes the ontology with roof 301 Yu peripheral wall 302, and opening is formed on the bottom of ontology, Similar bottle cap shape, wherein open for covering bottle cap 902；It is wherein provided on the circumferencial direction of peripheral wall 302 for clamping bottle The card cap unit 6 of lid 902.Specifically, card cap unit 6 includes multiple spring-loaded plungers 601 for being distributed in 302 circumferencial direction of peripheral wall (also referred to as bulb plunger, specific structure are conventional structure).Wherein the quantity of spring-loaded plunger 601 is 4~8, is evenly distributed on week On the circumferencial direction of wall 302.During swivel head 3 covers bottle cap 902 and is pressed downward, bulb is in bullet in spring-loaded plunger 601 The side that bottle cap 902 is compressed under the elastic force of spring, to form certain clamping force to bottle stopper.Certainly, the quantity of spring-loaded plunger 601 It can be selected according to the size or type of bottle cap 902, to guarantee suitable clamping force.Further, in the roof of swivel head 3 301 inner surfaces are provided with frictional disk 303(as used disk made of high coefficient of friction material), for increasing and bottle cap 902 Frictional force guarantees bottle cap 902 with 3 synchronous rotary of swivel head without skidding.

In the present embodiment, the side at predetermined spiral cover position is provided with baffle (or other fixtures)；The side of sample bottle 9 is then It is placed against baffle；Sample bottle fixed cell 1 then includes the extensible member 101 positioned at the predetermined spiral cover position other side, extensible member 101 The body 901 of sample bottle 9 is clamped between baffle and telescopic end by telescopic end after stretching out, to realize the fixation of body 901.Specifically Ground, extensible member 101 can use telescopic oil cylinder, cylinder or motor, it is preferred to use cylinder.In addition, elevation driving unit 5 also uses Telescopic oil cylinder, cylinder or motor, wherein it is preferred that using cylinder；Rotary drive unit 4 then uses rotating electric machine 401.

In the present embodiment, the fast speed when being gone up and down of the cylinder as used by elevation driving unit 5, in revolving bottle When lid 902 is uncapped, easily leads to bottle cap 902 and deviate from out of swivel head 3；Therefore it is single that the lower section of fixed bracket 2 is provided with jacking First 7(for example small-sized telescopic cylinder), during rotary bottle cover 902 is uncapped, elevation driving unit 5 provide it is certain under Pressure compresses body 901, guarantees the close contact of frictional disk 303 and bottle cap 902, bottle cap 902 is unscrewed, then stops lifting and drive The operation of moving cell 5；Slowly hold-down support is jacked by jacking unit 7 to adapt to the stroke of uncapping of bottle cap 902 upwards, is protected again Demonstrate,prove the reliability uncapped；In addition, can offset lifting during rotary bottle cover 902 is uncapped by jacking unit 7 and drive The lower pressure of 5 part of moving cell.

In the present embodiment, it is provided with whether the bottle cap containing bottle cap 902 is examined in swivel head 3 for detecting on fixed bracket 2 Survey unit 8.Specifically, bottle cap detection unit 8 includes bottle cap detection piece 801, and bottle cap detection piece 801 is installed on fixed bracket 2, It is provided with perforative detection hole 802 at the position of 801 face Cao rotating head of bottle cap detection piece, bottle cap detection piece 801 passes through detection hole It whether there is bottle cap 902 in 802 detection swivel heads 3, so that judgement is uncapped or whether closing lid succeeds.

The utility model further correspondingly discloses a kind of capping method based on sample bottle automatic cap-rotating device as described above, including Step:

S01, firstly, sample bottle 9 is placed at predetermined spiral cover position, and be fixed by sample bottle fixed cell 1；

S02, elevation driving unit 5 drive the swivel head 3 on fixed bracket 2 to decline, and the bottle cap 902 of sample bottle 9 is fastened on In swivel head 3；Rotary drive unit 4 drives swivel head 3 to rotate forward or backwards, drives bottle cap 902 to rotate, to realize bottle cap 902 uncap or closing lid.

In the present embodiment, in step S02, before the bottle cap 902 of sample bottle 9 is fastened on swivel head 3, rotary drive unit 4 driving swivel heads 3 rotate forward or backwards.When the bottle cap 902 of sample bottle 9 is fastened in swivel head 3, sample lid 902 has certain Clamping force, if restarting rotary drive unit 4(rotary drive unit 4 after 902 clamping of bottle cap mostly uses greatly motor), it may The staring torque that will lead to rotary drive unit 4 is less than clamping force and is unable to drive the rotation of swivel head 3.Therefore, in the bottle of sample bottle 9 Lid 902 is fastened on before swivel head 3, rotary drive unit 4 i.e. drive swivel head 3 rotate forward or backwards (such as oscilaltion and Rotate synchronous averaging), guarantee that bottle cap 902 is smoothly uncapped.

The sample bottle automatic cap-rotating method of the utility model, after body 901 is fixed by sample bottle fixed cell 1, then It drives swivel head 3 to rotate by rotary drive unit 4, drives the rotation of bottle cap 902 to carry out closing lid or divide Gai Zuoye, operation letter Just, it is easily achieved.

It is described further below with reference to method of the specific embodiment to the utility model:

(1) as shown in figure 4, each unit is in preparation state；

(2) as shown in figure 5, sample bottle 9(is contained bottle cap 902) it is placed on predetermined spiral cover position；

(3) as shown in fig. 6, clamping body 901 by sample bottle fixed cell 1；

(4) as shown in fig. 7, elevation driving unit 5 drives swivel head 3 to decline, and the bottle cap of sample bottle 9 902 is arranged in rotation In rotary head 3；

(5) as shown in figure 8, rotary drive unit 4 drives swivel head 3 to rotate, bottle cap 902 is unscrewed；In the process, it rises Drop driving unit 5 provides downward pressure, so as to have enough frictional force between the frictional disk 303 and bottle cap 902 of swivel head 3, Rotate synchronously bottle cap 902 with swivel head 3；As shown in figure 15, when rotary drive unit 4 drives swivel head 3 to rotate in the forward direction drive During the rotation of bottle cap 902 is to realize that bottle cap 902 is uncapped, elevation driving unit 5, which moves downward, provides certain lower pressure, protects The close contact of frictional disk 303 and bottle cap 902 is demonstrate,proved, while by the way that the jacking unit 7 below fixed bracket 2 is arranged in spiral cover Slowly hold-down support is jacked upwards smoothly to uncap during being uncapped；

(6) as shown in figure 9, when completion of uncapping, elevation driving unit 5 continues to drive swivel head 3 is past to rise toward rising, Bottle cap 902 is arranged in swivel head 3 by spring-loaded plunger 601 at this time, realizes the separation of bottle cap 902 and body 901；Swivel head 3 After being raised to position, bottle cap detection piece 801 incudes in swivel head 3 whether have bottle cap 902 by detection hole 802, if there is, then it is assumed that it opens It covers successfully；Think to uncap unsuccessfully if without bottle cap 902, continues to uncap by above-mentioned steps；

(7) as shown in Figure 10, sample bottle fixed cell 1 unclamps sample bottle 9, is removed at this time without the sample bottle 9 of bottle cap 902, into Row sampling operation；

(8) as shown in figure 11, the sample bottle 9 after the completion of sampling is placed at predetermined spiral cover position, then passes through sample bottle 9 again Fixed cell 1 clamps body 901；

(9) as shown in figure 12, elevation driving unit 5 drives swivel head 3 to decline, and the bottle cap of sample bottle 9 902 is arranged in rotation In rotary head 3；Rotary drive unit 4 drives swivel head 3 to rotate, and bottle cap 902 is screwed；In the process, elevation driving unit 5 mentions Make bottle cap 902 with rotation so as to have enough frictional force between the frictional disk 303 and bottle cap 902 of swivel head 3 for downward pressure Rotary head 3 rotates synchronously；As shown in figure 16, when rotary drive unit 4 drive swivel head 3 reversely rotate drive bottle cap 902 rotation with During realizing 902 closing lid of bottle cap, closing lid is carried out in spiral cover by the way that the jacking unit 7 below fixed bracket 2 is arranged in The lower pressure of 5 part of elevation driving unit is offset in the process

(10) as shown in figure 13, elevation driving unit 5 drives swivel head 3 to rise, although bottle cap 902 is by spring-loaded plunger at this time 601 are stuck in swivel head 3, but bottle cap 902 is linked together by screw thread with body 901 at this time, and body 901 is consolidated by sample bottle Order member 1 clamps；Elevation driving unit 5 drives swivel head 3 to rise by force, and swivel head 3 is separated with bottle cap 902, rotates After first 3 are raised to position, bottle cap detection piece 801 incudes in swivel head 3 whether have bottle cap 902 from detection hole 802, if it is not, recognizing For spiral cover success, think that spiral cover fails if not, carries out closing lid operation by above-mentioned steps；

(11) as shown in figure 14, sample bottle fixed cell 1 unclamps sample bottle 9, and the sample bottle 9 for having bottle cap 902 is shifted.

Above are merely preferred embodiments of the utility model, the protection scope of the utility model is not limited merely to above-mentioned Embodiment, technical solution belonging to the idea of the present invention belong to the protection scope of the utility model.It should be pointed out that pair For those skilled in the art, several improvements and modifications without departing from the principle of the utility model, It should be regarded as the protection scope of the utility model.

Claims (10)

1. a kind of unidirectional torsion clutch for sample bottle automatic cap-rotating device, which is characterized in that including unilateral bearing (4021) and Torsion shaft coupling (4022), the unilateral bearing (4021) and torsion shaft coupling (4022) are coaxially disposed, the unilateral bearing (4021) outer ring of outer ring and torsion shaft coupling (4022) is fixed to each other to form the first connector, the unilateral bearing (4021) Inner ring and the inner ring of torsion shaft coupling (4022) be fixed to each other to form the second connector, first connector and the second connection Part is connected with the rotary drive unit (4) of the sample bottle automatic cap-rotating device and swivel head (3) respectively.

2. the unidirectional torsion clutch according to claim 1 for sample bottle automatic cap-rotating device, which is characterized in that the list The inner ring of inner ring and torsion shaft coupling (4022) to bearing (4021) is sheathed on the output shaft of the rotary drive unit (4) (4011) on, the outer ring of the unilateral bearing (4021) and the outer ring of torsion shaft coupling (4022) are installed in a fixed frame (4023) on, the fixed frame (4023) is connected with the swivel head (3) fastening.

3. the unidirectional torsion clutch according to claim 1 for sample bottle automatic cap-rotating device, which is characterized in that the list The inner ring of inner ring and torsion shaft coupling (4022) to bearing (4021) is sheathed in a connecting shaft, one end of the connecting shaft It is connected with swivel head (3) fastening, the outer ring of the unilateral bearing (4021) and the outer ring of torsion shaft coupling (4022) are installed in In one connecting bracket, the connecting bracket is connected with the rotary drive unit (4).

4. a kind of sample bottle automatic cap-rotating device, which is characterized in that including

Sample bottle fixed cell (1), for the body (901) for being placed in sample bottle (9) at predetermined spiral cover position to be fixed；

Swivel head (3) is installed on the top of the predetermined spiral cover position, and the bottle cap (902) of sample bottle (9) is set for card；

Rotary drive unit (4) is connected with the swivel head (3), and for driving swivel head (3) to rotate, drive is arranged in rotation Bottle cap (902) rotation in head (3) is to be uncapped or closing lid operation；

Fixed bracket (2), for installing swivel head (3) and rotary drive unit (4)；

Elevation driving unit (5), for driving fixed bracket (2) oscilaltion, so that swivel head (3) oscilaltion is driven, with Realize the division of bottle cap (902) and body (901)；

It is arranged between the rotary drive unit (4) and swivel head (3) just like use described in any one of claims 1 to 3 In the unidirectional torsion clutch (402) of sample bottle automatic cap-rotating device.

5. sample bottle automatic cap-rotating device according to claim 4, which is characterized in that the swivel head (3) includes having roof (301) with the ontology of peripheral wall (302), opening is formed on the bottom of the ontology, for accommodating bottle cap (902)；The peripheral wall (302) Circumferencial direction on be provided with card cap unit (6) for bottle cap described in clamping (902).

6. sample bottle automatic cap-rotating device according to claim 5, which is characterized in that the card cap unit (6) includes multiple points Spring-loaded plunger (601) of the cloth in peripheral wall (302) circumferencial direction.

7. sample bottle automatic cap-rotating device according to claim 5 or 6, which is characterized in that the inner surface of the roof (301) is set Frictional disk (303) are equipped with, for increasing and the frictional force of bottle cap (902).

8. the sample bottle automatic cap-rotating device according to any one of claim 4 or 5 or 6, which is characterized in that the sample bottle is solid Order member (1) includes the extensible member (101) positioned at the predetermined spiral cover position side, for the side wall at predetermined spiral cover position It cooperates to realize the clamping to body (901).

9. the sample bottle automatic cap-rotating device according to any one of claim 4 or 5 or 6, which is characterized in that the fixed branch Jacking unit (7) is provided with below frame (2), it is upward for will slowly fix bracket (2) during spiral cover is uncapped It jacks, and offsets the lower pressure of elevation driving unit (5) part during spiral cover carries out closing lid.

10. the sample bottle automatic cap-rotating device according to any one of claim 4 or 5 or 6, which is characterized in that the fixation It is provided on bracket (2) for detecting the bottle cap detection unit (8) for whether containing bottle cap (902) in swivel head (3).