CN218324476U

CN218324476U - Door opening and closing device, centrifugal machine and automatic centrifugal system

Info

Publication number: CN218324476U
Application number: CN202221683903.0U
Authority: CN
Inventors: 刘建青; 王永康; 高建东; 杨名辉; 王波
Original assignee: Shanghai Zhiyao Technology Co ltd
Current assignee: Shanghai Zhiyao Technology Co ltd
Priority date: 2022-06-30
Filing date: 2022-06-30
Publication date: 2023-01-17
Anticipated expiration: 2032-06-30

Abstract

The utility model relates to a centrifuge technical field especially relates to a door opening and closing device, centrifuge and automatic centrifugal system. The door opening and closing device comprises a rotating unit, a first swinging unit and a second swinging unit, wherein the rotating unit comprises a driving mechanism and a first rotating shaft, and the driving mechanism is connected with the first rotating shaft so as to drive the first rotating shaft to rotate; the first end of the first swinging unit is connected with the first rotating shaft, and the first swinging unit can rotate along with the first rotating shaft; the first end of the second swing unit is connected with the first swing unit in a sliding mode, and the second end of the second swing unit is connected with the door cover. The rotating unit can drive the first swing unit to rotate, and the first swing unit is connected with the second swing unit in a sliding mode, so that the situation that the door cover is clamped when opened or closed can be avoided, the door opening and closing device can open or close the door cover, and the door cover can be automatically opened or closed.

Description

Door opening and closing device, centrifugal machine and automatic centrifugal system

Technical Field

The utility model relates to a centrifuge technical field especially relates to a door opening and closing device, centrifuge and automatic centrifugal system.

Background

A centrifuge is a device that uses centrifugal force to separate components of a liquid from solid particles or a mixture of liquid and liquid.

In order to improve the efficiency of getting and putting of centrifugal sample, getting and putting of centrifugal sample gradually changes into automatic, and the centrifuge that provides among the prior art needs manual switch door closure in the centrifuge use, like this, in centrifuge actual work in-process, operating personnel need manual switch door closure, just can realize the purpose that the automatic sampling advances a kind at last. The actual working efficiency of the centrifuge is low because a certain time is consumed for manually opening and closing the door cover.

Although the prior art has a structure of automatically opening the door, the structure is usually applied to a centrifuge and then the phenomenon of jamming occurs.

Therefore, there is a need for a door opening and closing device, a centrifuge and an automatic centrifuge system to solve the above-mentioned problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an open/close door device, centrifuge and automatic centrifugal system can realize opening automatically or close the door closure, and can not appear blocking under opening or the closed condition.

To achieve the purpose, the utility model adopts the following technical proposal:

a door opening and closing apparatus connected to a door cover, comprising:

the rotating unit comprises a driving mechanism and a first rotating shaft, and the driving mechanism is connected with the first rotating shaft so as to drive the first rotating shaft to rotate;

a first swing unit, a first end of which is connected with the first rotating shaft, the first swing unit being rotatable with the first rotating shaft;

and the first end of the second swinging unit is connected with the first swinging unit in a sliding manner, and the second end of the second swinging unit is connected with the door cover.

As a preferable technical solution of the above door opening and closing device, one of the second swing unit and the first swing unit includes a first guide slider, and the other includes a first guide slide rail, and the first guide slider is slidably connected to the first guide slide rail.

As an optimal technical solution of the above door opening and closing device, the first swing unit includes a swing arm and a first guide slide rail disposed on the swing arm, a first end of the swing arm is connected to the first rotating shaft, the first guide slide rail is disposed on a side wall of the swing arm facing the second swing unit, and a length direction of the first guide slide rail and a length direction of the swing arm are disposed in the same direction.

As an optimal technical scheme of the door opening and closing device, the first end of the swing arm is provided with two clamping plates, the two clamping plates are matched and clamped with the first rotating shaft, and the two clamping plates are connected through a connecting bolt.

As a preferable technical solution of the above door opening and closing device, the second swing unit includes the first guide slider, and the first guide slider is disposed on the door cover.

As an optimal technical scheme of the door opening and closing device, the second swing unit further includes a second rotating shaft, a second supporting seat and a knuckle bearing, the first guide slider is fixedly connected with the knuckle bearing, the second supporting seat is arranged on the door cover, and the second rotating shaft penetrates through the knuckle bearing and then the two ends of the second rotating shaft are respectively fixedly arranged on the second supporting seat.

As an optimal technical scheme of the door opening and closing device, the second supporting seat is a U-shaped supporting frame, and a mounting groove used for mounting the second rotating shaft is formed in the second supporting seat.

As a preferable technical solution of the above door opening and closing device, the rotating unit further includes a first supporting seat, one end of the first rotating shaft is connected to the driving mechanism, and the other end of the first rotating shaft is connected to the first supporting seat.

As an optimal technical solution of the above door opening and closing device, the door opening and closing device further includes a detection unit, the detection unit includes a positioning sensor and a positioning sensing piece, one of the positioning sensor and the positioning sensing piece is disposed on the first rotating shaft, the other one is disposed below the first rotating shaft, the positioning sensor and the positioning sensing piece cooperate to detect whether the first rotating shaft drives the door cover to be opened in place.

As a preferred technical solution of the above door opening and closing device, the door opening and closing device further includes a fixing bracket, and the rotating unit is fixedly arranged on the fixing bracket; the fixed bracket is erected on one side of the door cover.

A centrifuge comprises the door opening and closing device and the door cover, wherein the door opening and closing device is connected with the door cover.

An automatic centrifugal system comprises a mobile robot and the centrifugal machine according to the scheme, wherein the mobile robot is used for sampling or sampling after a door cover of a door opening and closing device of the centrifugal machine is opened.

The utility model discloses beneficial effect:

the rotating unit can drive the first swing unit to rotate, and the first swing unit is connected with the second swing unit in a sliding mode, so that the situation that the door cover is blocked when opened or closed can be avoided. The door opening and closing device can open or close the door cover, so that the automatic opening or closing action of the door cover can be realized. Through setting up the door opening and closing device, can realize automatic opening or closing the door closure, can improve centrifuge's work efficiency like this. In addition, the door cover can be automatically opened or closed, so that the operation of personnel can be reduced, and the labor cost is saved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.

Fig. 1 is a rear view of a centrifuge provided by an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a first viewing angle of the centrifuge provided by the embodiment of the present invention;

fig. 3 is a schematic structural diagram of a second viewing angle of the centrifuge provided by the embodiment of the present invention;

fig. 4 is a partially enlarged view of a point a in fig. 3.

In the figure:

1. a housing; 2. a centrifugal rotor; 3. a door cover; 4. a door opening and closing device; 41. a rotation unit; 411. a first support base; 412. a drive mechanism; 413. a first rotating shaft; 42. a first swing unit; 421. swinging arms; 422. a first guide rail; 43. a second swing unit; 431. a first guide slider; 432. a second rotating shaft; 433. a second support seat; 434. a knuckle bearing; 44. a detection unit; 441. positioning the induction sheet; 442. a positioning sensor; 45. a coupling; 46. and fixing the bracket.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless otherwise explicitly specified or limited, the terms "connected", "connected" and "fixed" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation of the first and second features not being in direct contact, but being in contact with another feature between them. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", and the like are used based on the orientations and positional relationships shown in the drawings, and are only for convenience of description and simplification of operation, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to be limiting.

The centrifuge needs to take samples and sample in the prior art, so the door cover needs to be opened, but the door cover needs to be manually opened before sampling and sample introduction. Because the door cover needs to be opened manually, the condition that the working efficiency of the centrifuge is low can be caused in the actual working process of the centrifuge.

Therefore, the present embodiment provides a door opening and closing device to solve the above technical problems.

Referring to fig. 1 to 3, in the present embodiment, the door opening and closing device 4 includes a rotating unit 41, a first swinging unit 42 and a second swinging unit 43, the rotating unit 41 is connected to the first swinging unit 42 and can drive the first swinging unit 42 to rotate around a rotation axis of the rotating unit 41, a first end of the first swinging unit 42 is connected to the rotating unit 41, a second end of the first swinging unit 42 is slidably connected to a first end of the second swinging unit 43, and a second end of the second swinging unit 43 is connected to the door cover 3, so that the rotating unit 41 can drive the first swinging unit 42 and the second swinging unit 43 to move, thereby achieving the purpose of opening or closing the door cover 3. Since the first swing unit 42 and the second swing unit 43 are slidably connected, the door 3 will not be jammed during rotation during opening or closing the door 3, and the door 3 can be smoothly opened or closed.

Specifically, the rotating unit 41 includes a first supporting seat 411, a driving mechanism 412 and a first rotating shaft 413, wherein an output shaft of the driving mechanism 412 is connected to the first rotating shaft 413 through a coupling 45, and the first rotating shaft 413 is rotatably disposed on the first supporting seat 411, so that the first supporting seat 411 functions to support and fix the first rotating shaft 413. In order to reduce the friction force during the rotation of the first rotating shaft 413 and to improve the service life of the first rotating shaft 413, a bearing is provided on the first supporting seat 411. The first supporting seats 411 may be two in number, one of which supports a middle portion of the first rotating shaft 413 and the other of which supports an end portion of the first rotating shaft 413. One end of the first rotating shaft 413 passes through the bearing on the first supporting seat 411, so that the first supporting seat 411 supports the first rotating shaft 413 in a rotating manner, and the purpose that the first rotating shaft 413 rotates under the driving of the driving mechanism 412 can be ensured.

In order to enable the first rotating shaft 413 to rotate by a preset angle, in the present embodiment, the door opening and closing device 4 further includes a detecting unit 44, and the detecting unit 44 is configured to detect the rotating angle of the first rotating shaft 413, so that the door cover 3 is prevented from being rotated excessively to cause the door cover 3 to be overturned excessively. For example, the detecting unit 44 includes a positioning sensor 442 and a positioning sensing piece 441, one of the positioning sensor 442 and the positioning sensing piece 441 is disposed on the first rotating shaft 413, and the other is disposed below the first rotating shaft 413, and the positioning sensor 442 and the positioning sensing piece 441 cooperate to detect whether the first rotating shaft 413 drives the door 3 to be opened in place. Preferably, the positioning sensing piece 441 is disposed on a sidewall of the first rotating shaft 413, and the positioning sensor 442 is disposed directly below the first rotating shaft 413, corresponding to an installation position of the positioning sensing piece 441. When the position sensor 442 detects the signal of the position sensing piece 441, the rotation angle of the first rotating shaft 413 is 90 °, at this time, the driving mechanism 412 stops rotating, and the door 3 is opened or closed.

Wherein the positioning sensor 442 is an origin positioning sensor.

In detail, the first swing unit 42 includes a swing arm 421 and a first guide rail 422 provided on the swing arm 421, a first end of the swing arm 421 is connected to the first rotating shaft 413, the swing arm 421 can rotate with the first rotating shaft 413 when the first rotating shaft 413 rotates, and the swing arm 421 is provided perpendicular to the first rotating shaft 413. Specifically, the first end of swing arm 421 is provided with two grip blocks, and two grip blocks cooperate the first axis of rotation 413 of centre gripping, and two grip blocks pass through connecting bolt and connect, and connecting bolt is then the relative distance between two adjustable grip blocks, realizes that the grip block presss from both sides tight purpose to first axis of rotation 413. On the first rotating shaft 413, the first end of the swing arm 421 clamps the first rotating shaft 413, so that the swing arm 421 can rotate along with the first rotating shaft 413 when the first rotating shaft 413 rotates. The first guide sliding rail 422 is disposed on one side of the swing arm 421 facing the door cover 3, and the length of the first guide sliding rail 422 may be smaller than that of the swing arm 421, so that the rotation angle of the door cover 3 may be limited within 90 °, and the time for opening or closing the door cover 3 may be reduced.

It is understood that the swing arm 421 and the first rotating shaft 413 may be fixed by tightening a top thread and a circular ring to prevent the two from moving relatively, and is not limited in this respect.

As shown in fig. 4, the second swing unit 43 includes a first guide slider 431, the first guide slider 431 is connected to the door cover 3, the first guide slider 431 is connected to the first guide rail 422 in a sliding manner, when the driving mechanism 412 receives an instruction to open or close the door, the driving mechanism 412 drives the first rotating shaft 413 to rotate, and the swing arm 421 rotates under the action of the first rotating shaft 413, because of the sliding connection between the first guide slider 431 and the first guide rail 422, in the rotating process of the swing arm 421, the positions of the first guide slider 431 and the first guide rail 422 are changed relatively, so that the door cover 3 can be opened smoothly, and the problem of jamming cannot occur.

Further, in order to open the door 3 more smoothly and prevent the first guide rail 422 and the first guide slider 431 from being jammed when the position is changed, the second swing unit 43 further includes a second rotation shaft 432, a second support base 433, and a knuckle bearing 434, wherein the first guide slider 431 and the knuckle bearing 434 are fixedly connected, the second support base 433 is fixedly disposed on the door 3, and both rear ends of the second rotation shaft 432 passing through the knuckle bearing 434 are fixedly disposed on the second support base 433. In this way, when the first guide slider 431 slides, the joint bearing 434 also moves synchronously with the first guide slider 431, and the second rotating shaft 432 is provided to prevent the first guide slider 431 from being caught on the first guide rail 422, so that the first guide slider 431 and the first guide rail 422 can slide more smoothly.

Second supporting seat 433 is U type support frame, is provided with the mounting groove that is used for installing second axis of rotation 432 on U type support frame, and the edge of U type support frame is run through to the one end of mounting groove, is convenient for like this to the installation of second axis of rotation 432, and second axis of rotation 432 both ends are equipped with respectively after the bearing in the embedding mounting groove, and the purpose of quick installation can be realized to the installation of second axis of rotation 432.

Of course, in other embodiments, it is also possible that the first swing unit 42 includes the first guide slider 431 and the knuckle bearing 434, and the second swing unit 43 includes the first guide sliding rail 422, so that the purpose of smoothly opening or closing the door 3 can also be achieved.

In this embodiment, the driving mechanism 412 may be a motor, for example, the driving mechanism 412 is specifically a stepping motor, but the driving mechanism 412 may also be a rotary cylinder, which is not limited in this respect.

In other embodiments, it is also possible that the first swing unit 42 includes a swing arm 421, and in both the first swing unit 42 and the second swing unit 43, one of them includes a pulley and the other includes a guide rail frame. Take second swing unit 43 to include the guide slide frame as an example, the guide slide frame is a rectangular frame, one side of the rectangular frame towards swing arm 421 is provided with a long strip shaped hole, the length direction of the long strip shaped hole is the same as the length direction of swing arm 421, the pulley is arranged in the rectangular frame and can move while rotating in the rectangular frame, the pulley is connected on swing arm 421 through a connecting arm, the connecting arm is rotationally connected with swing arm 421, and the pulley can be rotationally arranged on the connecting arm. The pulley setting is on swing arm 421, and the pulley rotates with swing arm 421 and is connected, and when swing arm 421 rotated, the pulley rotated along with swing arm 421, the pulley self produced the rotation when can be along with swing arm 421 is rotatory under the effect of linking arm, also can realize like this that swing arm 421 drives the purpose that door closure 3 opened or closed smoothly.

The door opening and closing apparatus further includes a fixing bracket 46, and the rotating unit 41 is fixedly disposed on the fixing bracket 46. The fixed bracket 46 provides support for the rotating unit 41. The fixing bracket 46 is erected at one side of the door 3, so that it is avoided that the rotating unit 41 is directly arranged on the door 3 or the centrifuge, which results in an excessive load on the door 3 or the centrifuge.

The door opening and closing device 4 can open or close the door cover 3, so that the automatic opening or closing action of the door cover 3 can be realized. Through setting up switch door gear 4, can realize automatic opening or closing door closure 3, can improve centrifuge's work efficiency like this. In addition, the door cover 3 can be automatically opened or closed, so that the operation of personnel can be reduced, and the labor cost is saved.

The door opening and closing device 4 is connected to the door cover 3, and in some embodiments, the door opening and closing device 4 specifically includes an electric push rod or an air cylinder. For example, if the door opening and closing device 4 is a cylinder, the cylinder body of the cylinder is disposed on the housing 1, and the cylinder rod is pivotally connected to the door cover 3, so that the door cover 3 can rotate relative to the cylinder rod, in order to completely cover the door cover 3 above the housing 1, the cylinder body of the cylinder is disposed below the top plate of the housing 1, and one end of the cylinder rod penetrates through the top plate of the housing 1 and is rotatably connected to the door cover 3, so that the door cover 3 can completely shield the centrifugal rotor 2, and the sample is prevented from being thrown out when the centrifugal rotor 2 works.

In other embodiments, the door opening and closing device 4 comprises a crank arm push rod, a door opening transmission assembly and a driving mechanism 412, wherein the crank arm push rod comprises a first push rod and a second push rod, the first push rod and the second push rod are rotatably connected, the first push rod is connected with the door cover 3, the second push rod is connected with the door opening transmission assembly, and the door opening transmission assembly is connected with the driving mechanism 412. Specifically, the door opening transmission assembly comprises a gear, a connecting shaft and a rack, and one end of the rack is connected with the second push rod. One end of the connecting shaft penetrates through the gear, the other end of the connecting shaft is connected with an output shaft of the driving mechanism 412 through the coupler, the driving mechanism 412 rotates to drive the gear to rotate, the rack is meshed with the gear to convert the rotation into linear movement, the rack linear movement drives the crank arm push rod to move, and therefore the first push rod and the second push rod can be matched to achieve the opening or closing action of the door cover 3.

The embodiment discloses a centrifugal machine, which comprises a shell 1, a centrifugal rotor 2, a driving motor and a door cover 3, wherein the door cover 3 is rotatably connected with the top of the shell 1, and particularly the door cover 3 is pivotally connected with one side or one end of the top of the shell 1. Centrifugal rotor 2 sets up in the space that casing 1 formed, and centrifugal rotor 2 is connected with driving motor, and driving motor can drive centrifugal rotor 2 high-speed rotation and realize centrifugal purpose. This centrifuge still includes the embodiment of the utility model provides a door opening and closing device, this door opening and closing device are connected with the door closure to realize the automatic switch door.

Because including foretell switch door gear, the event the utility model discloses centrifuge has all advantages and the beneficial effect of above-mentioned embodiment, and the no longer repeated description here.

The embodiment discloses an automatic centrifugal system, including mobile robot and the embodiment of the utility model provides a centrifuge, mobile robot are used for advancing kind or sample after the switch door gear of centrifuge opens the door closure.

Wherein, mobile robot can include the arm, and the one end of arm is provided with the clamping jaw, and the clamping jaw is used for pressing from both sides to get the sample, and the arm is used for controlling the clamping jaw to remove to realize centrifuge's autoinjection or sample, reduce experimenter's work load and recruitment cost, improve work efficiency.

Because including foretell centrifuge, so the utility model discloses automatic centrifugation system has all advantages and the beneficial effect of above-mentioned embodiment, and the no longer repeated description here.

In addition, the foregoing is only a preferred embodiment of the present invention and the technical principles applied thereto. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious modifications, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims

1. A door opening and closing device connected with a door cover (3), comprising:

the rotating unit (41) comprises a driving mechanism (412) and a first rotating shaft (413), wherein the driving mechanism (412) is connected with the first rotating shaft (413) to drive the first rotating shaft (413) to rotate;

a first swing unit (42), a first end of the first swing unit (42) being connected to the first rotating shaft (413), the first swing unit (42) being rotatable with the first rotating shaft (413);

a second swing unit (43), wherein a first end of the second swing unit (43) is connected with the first swing unit (42) in a sliding manner, and a second end of the second swing unit (43) is connected with the door cover (3).

2. Door opening and closing device according to claim 1, characterized in that, of said second swinging unit (43) and said first swinging unit (42), one of them comprises a first guide slide (431) and the other one comprises a first guide slide (422), said first guide slide (431) being slidably connected with said first guide slide (422).

3. The door opening and closing apparatus according to claim 2, wherein the first swing unit (42) comprises a swing arm (421) and the first guide rail (422) disposed on the swing arm (421), a first end of the swing arm (421) is connected to the first rotating shaft (413), the first guide rail (422) is disposed on a side wall of the swing arm (421) facing the second swing unit (43), and a length direction of the first guide rail (422) is disposed in the same direction as a length direction of the swing arm (421).

4. The door opening and closing device as claimed in claim 3, wherein the first end of the swing arm (421) is provided with two clamping plates which are engaged to clamp the first rotating shaft (413), and the two clamping plates are connected by a connecting bolt.

5. The door opening and closing apparatus according to claim 2, wherein the second swing unit (43) includes the first guide slider (431), and the first guide slider (431) is provided on the door cover (3).

6. The door opening and closing device as claimed in claim 5, wherein the second swing unit (43) further comprises a second rotation shaft (432), a second support base (433) and a knuckle bearing (434), the first guide slider (431) is fixedly connected to the knuckle bearing (434), the second support base (433) is disposed on the door cover (3), and the second rotation shaft (432) is fixedly disposed on the second support base (433) through both rear ends of the knuckle bearing (434), respectively.

7. The door opening and closing device according to claim 6, wherein the second supporting base (433) is a U-shaped supporting frame, and an installation groove for installing the second rotating shaft (432) is formed on the second supporting base (433).

8. The door opening and closing apparatus according to claim 1, wherein the rotating unit (41) further includes a first supporting seat (411), and the first rotating shaft (413) has one end connected to the driving mechanism (412) and the other end connected to the first supporting seat (411).

9. The door opening and closing apparatus according to any one of claims 1 to 8, further comprising a sensing unit (44), wherein the sensing unit (44) comprises a positioning sensor (442) and a positioning sensing piece (441), one of the positioning sensor (442) and the positioning sensing piece (441) is disposed on the first rotating shaft (413) and the other is disposed below the first rotating shaft (413), and the positioning sensor (442) and the positioning sensing piece (441) cooperate to detect whether the first rotating shaft (413) brings the door cover (3) into position for opening.

10. Door opening and closing device according to any one of claims 1 to 8, characterized in that it further comprises a fixed bracket (46), said rotating unit (41) being fixedly arranged on said fixed bracket (46);

the fixed support (46) is erected on one side of the door cover (3).

11. A centrifuge, characterized in that it comprises a door cover (3) and a door opening and closing device according to any one of claims 1-10, which is connected to the door cover (3).

12. An automatic centrifugation system, characterized by comprising a mobile robot and the centrifuge of claim 11, wherein the mobile robot is used for sampling or sampling after the door cover (3) is opened by the door opening and closing device of the centrifuge.