CN217031833U

CN217031833U - Novel small door linkage mechanism of freeze dryer and freeze dryer

Info

Publication number: CN217031833U
Application number: CN202220052676.5U
Authority: CN
Inventors: 何国强; 张磊
Original assignee: Shanghai Austar Pharmaceutical Technology Equipment Co ltd
Current assignee: Shanghai Austar Pharmaceutical Technology Equipment Co ltd
Priority date: 2022-01-10
Filing date: 2022-01-10
Publication date: 2022-07-22
Anticipated expiration: 2032-01-10

Abstract

The utility model provides a novel freeze dryer wicket linkage mechanism and a freeze dryer, belonging to the technical field of freeze dryers. The cantilever assembly comprises a cantilever shell, a fixed gear, a transmission gear, a driven gear and a lifting shaft, wherein the upper end of the cantilever shell is connected to the connecting shaft, the fixed gear, the transmission gear and the driven gear are all arranged inside the cantilever shell and are sequentially meshed, the fixed gear is fixedly connected to a door frame of a small door of the freeze dryer, the driven gear and the transmission gear are all in running fit with the cantilever shell, one end of the lifting shaft is connected to the connecting portion, and the other end of the lifting shaft penetrates through the cantilever shell and is connected with the transmission gear. The novel small door linkage mechanism of the freeze dryer can ensure that the small door body always keeps a vertically downward posture parallel to the small door base plate of the freeze dryer in the process of being lifted, and the situation that the gravity center swings due to the fact that the small door body is lifted and changes can be avoided.

Description

Novel small door linkage mechanism of freeze dryer and freeze dryer

Technical Field

The utility model belongs to the technical field of freeze dryers, and particularly relates to a novel small door linkage mechanism of a freeze dryer and the freeze dryer.

Background

In patent application No. 202010529839.X, a freeze dryer wicket is described, which presents two problems during actual use. Firstly, the small door body can swing in the process of being lifted; secondly, the small door cannot be well attached to the sealing strip on the small door base plate only by the rotation of the connecting shaft, and needs to be pressed by a positioning block; the main reason for the two problems is that no linkage mechanism exists between the rotation of the connecting shaft and the driven of the small door body, and the specific motion track of the small door body cannot be limited.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a novel linkage mechanism for a small door of a freeze dryer, and aims to solve the problem that a small body of the freeze dryer can not be well attached to a sealing strip on a small door base plate due to the swinging phenomenon in the lifting process.

In order to realize the purpose, the utility model adopts the technical scheme that: the utility model provides a novel little door link gear of freeze dryer, be in including setting up connecting portion, the setting in little door body upper end both sides little door body top is used for connecting power unit's connecting axle and locating the both sides of connecting axle and the cantilever subassembly of being connected with the connecting portion that correspond respectively:

cantilever subassembly includes cantilever casing, fixed gear, drive gear, driven gear and lift axle, the upper end of cantilever casing set firmly in on the connecting axle, fixed gear drive gear with driven gear all locates the inside of cantilever casing and mesh in proper order, fixed gear fixed connection is on the door frame of freeze dryer wicket, driven gear with drive gear all with cantilever casing normal running fit, lift axle one end is connected on the connecting portion, the other end runs through the cantilever casing and with drive gear connects.

In a possible implementation manner, a cover plate for shielding the transmission gear and the driven gear is arranged on the outer side of the cantilever shell.

In one possible implementation, the cover plate is detachably connected to the outer side of the cantilever housing.

In a possible implementation manner, a retaining ring for shielding the fixed gear is arranged on the outer side of the cantilever shell, and the retaining ring is sleeved on the connecting shaft.

In a possible implementation manner, the cantilever housing is sleeved on the connecting shaft and is fixedly connected through a connecting pin.

In one possible embodiment, the driven gear is provided axially through a gear shaft, which is connected to the cantilever housing.

In a possible implementation, an end of the lifting shaft remote from the connecting portion is sleeved with a bushing through which the lifting shaft is in hinged fit with the cantilever housing.

In a possible implementation manner, the driven gear is sleeved on the lifting shaft, and a flat key connected with the driven gear is arranged on the lifting shaft.

In a possible implementation, an end of the lifting shaft remote from the cantilever housing extends through and is fixedly connected to the connecting portion.

The novel small door linkage mechanism of the freeze dryer provided by the utility model has the beneficial effects that: compared with the prior art, the connecting shaft rotates anticlockwise to drive the cantilever shell to rotate anticlockwise, and the fixed gear is fixedly connected to the door frame of the small door of the freeze dryer to keep a stable state, and the driven gear and the transmission gear are in running fit with the cantilever shell, so that when the cantilever shell rotates anticlockwise, the driven gear is meshed with the fixed gear and rotates anticlockwise, at the moment, the driven gear and the driven gear are meshed with the transmission gear to rotate clockwise, and then the lifting shaft connected with the driven gear drives the small door body to rotate clockwise. Can guarantee like this that cantilever shell has rotated how many angles, the rotatory angle that equals of freeze dryer wicket body will be towards opposite direction, finally guarantees that freeze dryer wicket body is being promoted in-process, remains vertical decurrent gesture and freeze dryer wicket plate parallel throughout, can not be promoting because of wicket body, and the focus changes the wobbling condition.

The utility model also provides a freeze dryer, which comprises the novel freeze dryer wicket linkage mechanism.

According to the freeze dryer provided by the utility model, because the novel freeze dryer wicket linkage mechanism is used, the novel freeze dryer wicket linkage mechanism has the same beneficial effects as the novel freeze dryer wicket linkage mechanism, and the description is omitted.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions 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 it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural view of a novel linkage mechanism of a small door of a freeze dryer provided in an embodiment of the present invention;

fig. 2 is a partial perspective view of a first novel linkage mechanism of a small door of a freeze dryer according to an embodiment of the present invention;

fig. 3 is a partial perspective view of a novel linkage mechanism of a small door of a freeze dryer according to an embodiment of the present invention.

Description of reference numerals:

1. a retainer ring; 2. a cover plate; 3. a connecting pin; 4. a lift shaft; 5. a cantilever housing; 6. a driven gear; 7. a gear shaft; 8. a transmission gear; 9. fixing a gear; 10. and (3) a bushing.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

Referring to fig. 1 to 3, a novel linkage mechanism for a small door of a freeze dryer provided by the present invention will now be described. The utility model provides a novel little door link gear of freeze dryer, is including setting up connecting portion, the setting that are used for connecting power unit's connecting axle and locating the both sides of connecting axle and the cantilever subassembly of being connected with corresponding connecting portion respectively in little door body upper end both sides in little door body top.

The cantilever assembly comprises a cantilever shell 5, a fixed gear 9, a transmission gear 8, a driven gear 6 and a lifting shaft 4, the upper end of the cantilever shell 5 is connected to the connecting shaft, the fixed gear 9, the transmission gear 8 and the driven gear 6 are all arranged inside the cantilever shell 5 and are sequentially meshed, the fixed gear 9 is fixedly connected to a door frame of a small door of the freeze dryer, the driven gear 6 and the transmission gear 8 are both in running fit with the cantilever shell 5, one end of the lifting shaft 4 is connected to the connecting portion, and the other end of the lifting shaft penetrates through the cantilever shell 5 and is connected with the transmission gear 8.

One end of the connecting shaft above the small door body is connected with a power mechanism which provides power for the rotation of the connecting shaft. The rotation of connecting axle can drive the cantilever subassembly of its both sides in step and rotate, and two cantilever subassemblies drive little door body through the connecting portion of being connected with it and open or close.

Specifically, power unit drive connecting axle anticlockwise rotation drives cantilever casing 5 anticlockwise rotation, because fixed gear 9 fixed connection is in order to keep steady state on the door frame of freeze-dryer wicket, driven gear 6 and drive gear 8 and cantilever casing 5 normal running fit, consequently, when cantilever casing 5 anticlockwise rotation, driven gear 6 and fixed gear 9 meshing and anticlockwise rotation, this moment, with the beginning clockwise rotation of driven gear 6 meshing drive gear 8, and then drive wicket body clockwise rotation through the promotion axle 4 of being connected with it. Can guarantee like this that cantilever housing 5 has rotated how many angles, the rotatory angle that equals of freeze dryer wicket body will be towards opposite direction, finally guarantees that freeze dryer wicket body is being promoted in-process, remains vertical decurrent gesture and freeze dryer wicket board parallel throughout, can not be promoting because of wicket body, and the focus changes the wobbling condition.

Referring to fig. 2, the cover plate 2 is detachably connected to the outer side of the cantilever housing 5, and shields the driving gear 8 and the driven gear 6 inside the cantilever housing 5, so as to improve the aesthetic appearance of the cantilever housing 5 and the dustproof effect of the driving gear 8 and the driven gear 6.

Preferably, the edge of the cover plate 2 is provided with a plurality of bolts for connecting the cantilever housing 5, and the bolts are sequentially screwed or loosened to complete the mounting and dismounting of the cover plate 2 and the cantilever housing 5.

Referring to fig. 2, the retainer ring 1 is disposed on the outer side of the cantilever housing 5 and sleeved on the connecting shaft, and the retainer ring 1 shields the fixed gear 9, so that the appearance of the cantilever housing 5 and the dustproof effect of the fixed gear 9 can be improved.

Preferably, the upper contour of the inner cavity of the cantilever shell 5 is matched with the outer contour of the retainer ring 1, and an arc notch with a downward opening is formed. In addition, 2 upper portions of apron possess the ascending arc breach of opening, two arc breachs all with retaining ring 1 external profile looks adaptations. The retainer ring 1 is clamped between an arc opening with a downward opening at the upper part of the cantilever shell 5 and an arc gap with an upward opening at the upper part of the cover plate 2, so that the sealing performance of the fixed gear 9, the transmission gear 8 and the driven gear 6 in the cantilever shell 5 can be ensured.

Optionally, the cover plate 2 and the retainer ring 1 are both made of plastic.

Referring to fig. 2 and 3, the cantilever housing 5 is sleeved on the connecting shaft, and the connecting pin 3 vertically penetrates through the cantilever housing 5 from the outside and is inserted on the connecting shaft, so as to connect the cantilever housing 5 and the connecting shaft.

When the connecting shaft rotates, the cantilever shell 5 can be synchronously driven to rotate. In order to ensure the stability of the connection between the two, a plurality of connecting pins 3 can be arranged according to the installation space and the stress condition.

Referring to fig. 3, a gear shaft 7 axially penetrates the driven gear 6, and at least one end of the gear shaft 7 is connected to the cantilever housing 5. Wherein the gear shaft 7 is in running fit with the driven gear 6, or the gear shaft 7 is in running fit with the cantilever housing 5.

Referring to fig. 1, a bushing 10 is embedded in a predetermined hole of the cantilever housing 5, and an end of the lifting shaft 4 away from the connecting portion penetrates through the bushing 10 and is rotatably engaged with the bushing 10.

Optionally, the driven gear 6 is sleeved on the lifting shaft 4, and a flat key connected with the driven gear 6 is arranged on the lifting shaft 4.

Referring to fig. 1, two connecting portions are welded and fixed on two sides of the upper end of the small door body, a connecting hole is horizontally formed in the middle of the connecting portion, and one end of the lifting shaft 4, which is far away from the cantilever shell 5, penetrates through the connecting hole and is fixedly connected with the connecting portion through a positioning pin.

The utility model also provides a freeze dryer, and the novel freeze dryer wicket linkage mechanism is used, so that the novel freeze dryer wicket linkage mechanism has the same beneficial effects as the novel freeze dryer wicket linkage mechanism, and is not repeated herein.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a novel little door link gear of freeze dryer, its characterized in that, is in including setting up connecting portion, the setting in little door body upper end both sides be used for connecting power unit's connecting axle and locating little door body top the cantilever subassembly that the both sides of connecting axle and be connected with the connecting portion that correspond respectively:

cantilever subassembly includes cantilever casing (5), fixed gear (9), drive gear (8), driven gear (6) and lift axle (4), the upper end of cantilever casing (5) is connected on the connecting axle, fixed gear (9) drive gear (8) with driven gear (6) are all located the inside of cantilever casing (5) and mesh in proper order, fixed gear (9) fixed connection is on the door frame of freeze dryer wicket, driven gear (6) with drive gear (8) all with cantilever casing (5) normal running fit, lift axle (4) one end is connected on the connecting portion, the other end runs through cantilever casing (5) and with drive gear (8) are connected.

2. A new type of freeze dryer wicket linkage according to claim 1, characterized in that the cantilever housing (5) is provided on its outside with a cover plate (2) for shielding the drive gear (8) and the driven gear (6).

3. A novel freeze dryer wicket linkage as claimed in claim 2, wherein the cover plate (2) is removably attached to the outside of the cantilever housing (5).

4. The novel small door linkage mechanism of the freeze dryer as claimed in claim 1, wherein a retaining ring (1) for shielding the fixed gear (9) is arranged on the outer side of the cantilever shell (5), and the retaining ring (1) is sleeved on the connecting shaft.

5. The novel linkage mechanism for the small door of the freeze dryer as claimed in claim 1, wherein the cantilever housing (5) is sleeved on the connecting shaft and is fixedly connected through a connecting pin (3).

6. A novel freeze dryer wicket linkage as claimed in claim 1, wherein the driven gear (6) is provided with a gear shaft (7) axially extending therethrough, the gear shaft (7) being connected to the cantilever housing (5).

7. A novel linkage mechanism for a small door of a freeze dryer as claimed in claim 1, characterized in that a bushing (10) is sleeved on one end of the lifting shaft (4) far away from the connecting portion, and the lifting shaft (4) is in hinged fit with the cantilever housing (5) through the bushing (10).

8. The novel small door linkage mechanism of the freeze dryer as claimed in claim 1, characterized in that the driven gear (6) is sleeved on the lifting shaft (4), and a flat key connected with the driven gear (6) is arranged on the lifting shaft (4).

9. A novel freeze dryer wicket linkage according to claim 1, characterised in that the end of the lifting shaft (4) remote from the cantilever housing (5) extends through and is fixedly connected to the connecting portion.

10. A freeze dryer comprising a novel freeze dryer wicket linkage as claimed in any one of claims 1 to 9.