CN111439488B

CN111439488B - Heat insulation box

Info

Publication number: CN111439488B
Application number: CN202010337377.1A
Authority: CN
Inventors: 邱靖涛; 邱宇
Original assignee: Zhejiang Gint Thermal Insulation Technology Co ltd
Current assignee: Zhejiang Gint Thermal Insulation Technology Co ltd
Priority date: 2020-04-26
Filing date: 2020-04-26
Publication date: 2021-02-02
Anticipated expiration: 2040-04-26
Also published as: CN112777147A; WO2021218128A1; JP2021172447A; JP6933869B1; CN111439488A

Abstract

The invention belongs to the technical field of insulation boxes, and particularly relates to an insulation box which comprises an insulation box body and an insulation cover. When food is less, the gliding distance of the pressing plate is relatively large, the space below the pressing plate in the heat preservation box body is relatively small, namely the space occupied by the food is relatively small, and the heat loss is relatively small. According to the invention, the trigger strip is designed, after the heat insulation cover is closed, the telescopic function of the driving telescopic rod is locked by the trigger strip, so that the pressing plate is ensured to be in a static state in the carrying process, and the sliding phenomenon is prevented from occurring, and the heat insulation effect is prevented from being influenced.

Description

Heat insulation box

Technical Field

The invention belongs to the technical field of heat preservation boxes, and particularly relates to a heat preservation box.

Background

The heat preservation effect can be directly influenced by more and less objects in the heat preservation box, and under the condition that the heat dissipation areas are the same, the fewer the objects in the heat preservation box are, the fewer the heat sources are, and the worse the heat preservation effect is; and because the thing is less, the empty vacant space in the insulation can is great, and the air in the empty space of going can absorb partly heat, has reduced the heat preservation effect.

The insulation can often be moved in the use, will appear rocking moving the food in the in-process insulation can, scatter to cover to keep warm, open the lid that keeps warm after, the food of keeping warm lid edge department will drop the outside, middle food can drop again in the insulation can, and people can glue the food mistake on the arm taking the in-process in addition, made dirty the arm on the one hand, on the other hand by the food that the arm pollutes pollute whole food after dropping in the insulation can.

The invention designs an incubator to solve the problems.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention discloses an incubator which is realized by adopting the following technical scheme.

An insulation can comprises an insulation can body and an insulation cover, wherein one end of the insulation cover is arranged on the insulation can body in a hinged mode; the method is characterized in that: a pressing plate is slidably mounted in the insulation box body and consists of a fixed plate and a swinging plate, one end of the fixed plate is provided with a swinging plate mounting groove which is communicated up and down, the fixed plate is in sliding fit with the inner wall surface of the insulation box body, and the swinging plate is arranged in the swinging plate mounting groove in a swinging manner; and a driving telescopic rod for driving the pressure plate to slide up and down in the heat-insulating box body and driving the swinging of the swinging plate relative to the fixed plate is arranged between the heat-insulating cover and the swinging plate.

The driving telescopic rod is of a telescopic structure, and a return spring is arranged on the inner side of the driving telescopic rod; a trigger spring is further mounted on the heat-insulating cover, and the trigger spring is in transmission connection with the driving telescopic rod through a gear; after the heat preservation lid is closed, the trigger strip is triggered the swing by the up end extrusion of heat preservation box, and the flexible function lock that the strip swing of triggering makes the drive telescopic link is died through gear drive.

A limiting rod is arranged on the inner side of one end, which is not provided with the swinging plate mounting groove, of the fixed plate, a limiting spring is arranged between the limiting rod and the fixed plate, and the limiting spring is an extension spring and has pretension force; when the fixed plate is located the top, the gag lever post is not spacing the swing of wobble plate for the fixed plate, and when the fixed plate is located non-top, the gag lever post is spacing the swing of wobble plate for the fixed plate.

As a further improvement of the technology, the three wall surfaces at one end of the heat preservation box body are provided with limiting strips which can limit the upward sliding of the pressing plate.

A first sealing strip is arranged between the heat preservation cover and the upper end face of the heat preservation box body.

As a further improvement of the technology, two symmetrically distributed mounting holes are formed on two side surfaces of one end of a swinging plate mounting groove formed in the fixed plate, and a first step surface higher than the bottom surface is formed on the lower side of the other end of the swinging plate mounting groove; the bottom surface of the swing plate is provided with a second step surface, one end of the swing plate is symmetrically provided with two fixing shafts, the swing plate is arranged on the fixing plate through the matching of the two fixing shafts and the two mounting holes, and the second step surface on the swing plate is matched with the first step surface at the lower end of the mounting groove of the swing plate.

Both side surfaces of the mounting groove of the swing plate, which are not provided with the mounting holes, are arc surfaces in swing fit with the swing plate; the arc center line of the arc surface is the swing axis of the swing plate.

A third sealing strip is arranged between the second step surface on the swinging plate and the first step surface in the swinging plate mounting groove; and a first arc-shaped sealing strip and a second arc-shaped sealing strip are arranged on the two side surfaces of the swing plate mounting groove which are not provided with the mounting holes.

And a second sealing strip is arranged between the fixed plate and the inner wall surface of the heat preservation box body.

As a further improvement of the technology, a second clamping groove is formed in the circular surface of one end, provided with the fixed shaft, of the swing plate, and a first clamping groove is formed in the wall surface of the upper end of the heat preservation box body.

A fourth mounting groove penetrating through the fixed plate is formed in one end, close to the mounting hole, of the swing plate mounting groove formed in the fixed plate, and a third mounting groove is formed in the wall surface of the fourth mounting groove; the one end of gag lever post is opened there is the inclined plane that resets, installs the installation slide on the gag lever post, and gag lever post slidable mounting is in the fourth mounting groove, and installs slide and third mounting groove sliding fit, and the one end fixed mounting of spacing spring is on the installation slide, and the other end fixed mounting of spacing spring is on the terminal surface of third mounting groove.

As a further improvement of the technology, the heat-insulating cover is provided with a first mounting groove, one end of the first mounting groove is provided with a first shaft hole, one end of the first shaft hole is provided with a second mounting groove, and one end of the second mounting groove is provided with a second shaft hole.

The second rotating shaft is rotatably arranged in the first shaft hole, the trigger strip is fixedly arranged at one end of the second rotating shaft and is positioned in the first mounting groove, and a plate spring is arranged between the trigger spring and the first mounting groove; the second gear is fixedly arranged at the other end of the second rotating shaft and is positioned in the second mounting groove, the first rotating shaft is rotatably arranged in the second shaft hole, the first gear is fixedly arranged at one end of the first rotating shaft and is positioned in the second mounting groove, and the first gear is meshed with the second gear; one end of the driving telescopic rod is arranged at the other end of the first rotating shaft through a universal joint; the first rotating shaft and the heat preservation cover form an acute angle, and when the fixing plate slides up and down to the middle position of the stroke of the fixing plate and the heat preservation cover is in a closed state, the first rotating shaft and the telescopic rod are collinear.

The driving telescopic rod comprises a telescopic inner rod, a telescopic outer sleeve, an elliptical sliding column and a reset spring, wherein the inner circular surface of the telescopic outer sleeve is elliptical, one end of the telescopic outer sleeve is connected with a first rotary shaft through a universal joint, the elliptical sliding column is installed at one end of the telescopic inner rod, the one end of the telescopic inner rod is installed in the telescopic outer sleeve through the sliding fit of the elliptical sliding column and the telescopic outer sleeve, and the reset spring is installed between the elliptical sliding column and the inner end surface of the telescopic outer sleeve.

A pull ring is installed on one side of the swing plate, a driving hook is fixedly installed at one end, which does not penetrate into the telescopic outer sleeve, of the telescopic inner rod, and the driving hook is connected with a pull ring hook sleeve.

Compared with the traditional incubator technology, the incubator has the following beneficial effects:

1. when the insulation box is covered, the designed driving telescopic rod can drive the pressing plate to slide up and down in the insulation box body, the sliding distance is automatically adjusted according to the amount of food in the insulation box body, and the insulation effect of the food is ensured. When food is less, the gliding distance of the pressing plate is relatively large, the space below the pressing plate in the heat preservation box body is relatively small, namely the space occupied by the food is relatively small, and the heat loss is relatively small.

2. Because the heat preservation box can be moved frequently in the using process, the food in the heat preservation box can shake in the moving process, and the pressing plate is further extruded to slide; the sliding of the pressing plate can change the space in the heat-insulating box body, which is positioned at the lower side of the pressing plate, so that the heat-insulating effect is influenced; therefore, the invention designs the trigger strip, after the heat insulation cover is closed, the telescopic function of the driving telescopic rod is locked by the trigger strip, the pressing plate is ensured to be in a static state in the carrying process, and the sliding phenomenon is prevented from occurring to influence the heat insulation effect.

3. The elastic coefficient of the limiting spring designed by the invention is relatively small, when the limiting rod is not matched with the first clamping groove formed in the heat insulation box body, the friction force between one end of the limiting rod, which is contacted with the inner wall of the heat insulation box body, and the inner wall of the heat insulation box body is relatively small, so that the phenomenon of abrasion is avoided; and one end of the limiting rod with the reset inclined plane is provided with a straight surface, so that the abrasion between the limiting rod and the inner wall of the heat preservation box body can be reduced to a certain extent through the straight surface.

4. According to the invention, the driving telescopic rod is connected with the swinging plate through the driving hook and the pull ring, so that the pressing plate can be conveniently detached and cleaned.

5. According to the heat preservation box designed by the invention, when food is taken, the heat preservation cover is only required to be opened, so that the swinging plate is opened, and the swinging plate is shorter than the heat preservation cover, so that the phenomenon that the food is mistakenly stuck on the arm is reduced to a certain extent when the food is taken; preventing the hands from being soiled and the food from being polluted.

Drawings

Fig. 1 is an external view of an entire part.

Fig. 2 is a schematic view of the overall component distribution.

Fig. 3 is a schematic view of the mounting of the integral components.

FIG. 4 is a schematic view of the installation of the thermal insulation case and the thermal insulation cover.

FIG. 5 is a schematic view of the combination of the thermal insulation box and the thermal insulation cover.

FIG. 6 is a schematic view of the structure of the thermal insulation box and the thermal insulation cover.

Fig. 7 is a schematic view of the installation of the driving telescopic rod.

Fig. 8 is a schematic view of the structure of the driving telescopic rod.

Fig. 9 is a schematic view of a platen structure.

Fig. 10 is a schematic view of the installation of the stop lever.

Fig. 11 is a schematic view of the fixing plate structure.

Fig. 12 is a schematic view of a check spring installation.

Fig. 13 is a schematic view of a wobble plate configuration.

Number designation in the figures: 1. a heat preservation box body; 2. a heat preservation cover; 3. driving the telescopic rod; 4. pressing a plate; 5. touching the clockwork spring; 6. a pull ring; 7. a limiting strip; 8. a first mounting groove; 9. a first shaft hole; 10. a second mounting groove; 11. a second shaft hole; 12. a first seal strip; 13. a first card slot; 14. a drive hook; 15. a universal joint; 16. a first rotating shaft; 17. a first gear; 18. a second gear; 19. a second rotating shaft; 20. a plate spring; 21. a telescopic inner rod; 22. a telescopic outer sleeve; 23. an elliptical sliding post; 24. a return spring; 25. a swinging plate; 26. a fixing plate; 27. a limiting rod; 28. a second seal strip; 29. a third mounting groove; 30. a fourth mounting groove; 31. a first arc-shaped sealing strip; 32. mounting holes; 33. a third seal strip; 34. a second arc-shaped sealing strip; 35. a first step surface; 36. mounting a sliding plate; 37. a limiting spring; 38. resetting the inclined plane; 39. a second card slot; 40. a second step surface; 41. a fixed shaft; 42. and a swinging plate mounting groove.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples or figures are illustrative of the present invention and are not intended to limit the scope of the present invention.

As shown in fig. 1 and 2, the heat preservation cover comprises a heat preservation box body 1 and a heat preservation cover 2, wherein one end of the heat preservation cover 2 is arranged on the heat preservation box body 1 in a hinged mode; the method is characterized in that: as shown in fig. 1, 2 and 3, a pressure plate 4 is slidably mounted in the heat-insulating box body 1, as shown in fig. 9, the pressure plate 4 is composed of a fixed plate 26 and a swinging plate 25, one end of the fixed plate 26 is provided with a swinging plate mounting groove 42 which is through up and down, the fixed plate 26 is in sliding fit with the inner wall surface of the heat-insulating box body 1, and the swinging plate 25 is swingably mounted in the swinging plate mounting groove 42; as shown in fig. 7, a telescopic driving rod 3 for driving the pressing plate 4 to slide up and down in the insulated cabinet 1 and for driving the swinging plate 25 to swing relative to the fixed plate 26 is installed between the insulated cover 2 and the swinging plate 25. When the heat preservation cover 2 is closed, the designed driving telescopic rod 3 can drive the pressing plate 4 to slide up and down in the heat preservation box body 1, the sliding distance is automatically adjusted according to the amount of food in the heat preservation box body 1, and the heat preservation effect of the food is ensured. When food is less, the downward sliding distance of the pressing plate 4 is relatively large, the space below the pressing plate 4 in the heat preservation box body 1 is relatively small, namely the space occupied by the food is relatively small, and the heat loss is relatively small.

As shown in fig. 2, 3 and 8, the driving telescopic rod 3 is of a telescopic structure, and a return spring 24 is installed inside the driving telescopic rod; the heat preservation cover 2 is also provided with a trigger spring 5, and the trigger spring 5 is in transmission connection with the driving telescopic rod 3 through a gear; after the heat preservation cover 2 is closed, the trigger strip 5 is extruded by the upper end face of the heat preservation box body 1 to trigger the swing, and the trigger spring 5 swings to enable the telescopic function of the driving telescopic rod 3 to be locked through gear transmission. The purpose of the design is that the food in the heat preservation box body 1 can shake in the moving process because the heat preservation box can be moved frequently in the using process, and then the pressing plate 4 is extruded, so that the pressing plate 4 slides; the sliding of the pressing plate 4 can change the space in the insulation box body 1 below the pressing plate 4, so that the insulation effect is influenced; therefore, the invention designs the trigger strip 5, after the heat preservation cover 2 is closed, the spring 5 is touched to lock the telescopic function of the driving telescopic rod 3, the pressing plate 4 is ensured to be in a static state in the carrying process, and the sliding phenomenon is prevented from occurring to influence the heat preservation effect.

As shown in fig. 3 and 10, a limit rod 27 is installed on the inner side of the end of the fixing plate 26 not provided with the swing plate installation groove 42, a limit spring 37 is installed between the limit rod 27 and the fixing plate 26, and the limit spring 37 is an extension spring and has pretension; when the fixed plate 26 is positioned at the uppermost side, the stopper rod 27 does not restrict the swing of the swing plate 25 with respect to the fixed plate 26, and when the fixed plate 26 is positioned at the non-uppermost side, the stopper rod 27 restricts the swing of the swing plate 25 with respect to the fixed plate 26.

When the limiting rod 27 is not matched with the first clamping groove 13 formed in the heat insulation box body 1, one end of the limiting rod 27 is extruded by the inner wall of the heat insulation box body 1, the other end of the limiting rod 27 is inserted into the second clamping groove 39 formed in the swinging plate 25, the swinging of the swinging plate 25 relative to the fixed plate 26 is limited, at the moment, the swinging plate 25 and the fixed plate 26 are in a relative static state, and the swinging plate 25 and the fixed plate 26 can be driven by the driving telescopic rod 3 to simultaneously slide up and down; when the first draw-in groove 13 that opens on gag lever post 27 and the insulation box 1 cooperates, the one end of gag lever post 27 inserts in first draw-in groove 13, and fixed plate 26 is spacing by insulation box 1, and the swing of pendulum plate 25 relative fixed plate 26 is spacing to be relieved, and drive 3 pulling pendulum plates 25 of telescopic link this moment just can make the pendulum plate 25 to swing on the relative fixed plate 26 and open, and then take the food in the insulation box 1.

The elastic coefficient of the limiting spring 37 designed by the invention is relatively small, when the limiting rod 27 is not matched with the first clamping groove 13 formed in the heat preservation box body 1, the friction force between one end of the limiting rod 27, which is contacted with the inner wall of the heat preservation box body 1, and the inner wall of the heat preservation box body 1 is relatively small, so that the phenomenon of abrasion is avoided; in addition, one end of the limiting rod 27 provided with the reset inclined plane 38 is provided with a straight surface, so that the abrasion between the limiting rod 27 and the inner wall of the heat preservation box body 1 can be reduced to a certain extent through the straight surface.

As shown in fig. 4 and 5, three wall surfaces at one end of the thermal insulation box body 1 are provided with limiting strips 7 which limit the upward sliding of the pressure plate 4; the limiting strip 7 is used for preventing the pressure plate 4 from being separated from the inner wall of the heat preservation box body 1 in the process of automatically adjusting or being driven to slide upwards to influence normal use.

As shown in fig. 9, 10 and 11, two symmetrically distributed mounting holes 32 are formed on two side surfaces of one end of a swing plate mounting groove 42 formed on the fixed plate 26, and a first step surface 35 higher than the bottom surface is formed on the lower side of the other end of the swing plate mounting groove 42; as shown in fig. 13, the bottom surface of the swing plate 25 has a second step surface 40, one end of the swing plate 25 is symmetrically provided with two fixed shafts 41, the swing plate 25 is mounted on the fixed plate 26 by the matching of the two fixed shafts 41 and the two mounting holes 32, and the second step surface 40 on the swing plate 25 is matched with the first step surface 35 at the lower end of the swing plate mounting groove 42; the first step surface 35 and the second step surface 40 are designed to ensure the sealing performance of the contact matching part after the swing plate 25 is closed with the fixed plate 26, and improve the heat preservation effect.

As shown in fig. 11, both side surfaces of the swing plate mounting groove 42, which are not provided with the mounting hole 32, are arc surfaces in swing fit with the swing plate 25; the arc center line of the arc surface is the swing axis of the swinging plate 25; the arc-shaped surface is designed to prevent the swinging interference between the swinging plate 25 and the swinging plate mounting groove 42 opened on the fixed plate 26 in the swinging process, and on the other hand, the gap is reduced, and the heat preservation effect is enhanced.

A third sealing strip 33 is arranged between the second step surface 40 on the swinging plate 25 and the first step surface in the swinging plate mounting groove 42; the two side surfaces of the swing plate mounting groove 42, which are not provided with the mounting holes 32, are provided with a first arc-shaped sealing strip 31 and a second arc-shaped sealing strip 34. The first sealing strip 12, the second sealing strip 28 and the third sealing strip 33 are used for ensuring the sealing performance of the contact matching part after the swinging plate 25 is closed with the fixed plate 26, and improving the heat insulation effect.

A second sealing strip 28 is arranged between the fixed plate 26 and the inner wall surface of the heat preservation box body 1; the second sealing strip 28 is used for ensuring the sealing performance of the fixing plate 26 in the sliding process relative to the inner wall of the heat preservation box body 1 and improving the heat preservation effect.

As shown in fig. 13, a second locking groove 39 is formed on the circular surface of the swing plate 25 at the end where the fixed shaft 41 is installed, and a first locking groove 13 is formed on the wall surface of the upper end of the thermal insulation box 1;

as shown in fig. 11, a fourth mounting groove 30 penetrating the fixed plate 26 is formed at one end of the swing plate mounting groove 42 formed in the fixed plate 26, which is close to the mounting hole 32, and a third mounting groove 29 is formed in a wall surface of the fourth mounting groove 30; as shown in fig. 12, one end of the limiting rod 27 is provided with a reset inclined surface 38, the limiting rod 27 is provided with an installation sliding plate 36, as shown in fig. 10, the limiting rod 27 is slidably installed in the fourth installation groove 30, the installation sliding plate 36 is slidably matched with the third installation groove 29, one end of the limiting spring 37 is fixedly installed on the installation sliding plate 36, and the other end of the limiting spring 37 is fixedly installed on the end surface of the third installation groove 29. The effect of the design of the reset inclined plane 38 is that, when the swing plate 25 is closed and the communicating fixing plate 26 moves down together, the limiting rod 27 is extruded to be separated from the first clamping groove 13 under the action of the first clamping groove 13 and the reset inclined plane 38, the end matched with the second clamping groove 39 on the swing plate 25 can be smoothly inserted into the second clamping groove 39, the swing of the swing plate 25 relative to the fixing plate 26 is limited, the swing plate 25 and the fixing plate 26 are in a relative static state, and the swing plate and the fixing plate can be driven by the driving telescopic rod 3 to slide downwards simultaneously.

As shown in fig. 6, the heat-insulating cover 2 is provided with a first mounting groove 8, one end of the first mounting groove 8 is provided with a first shaft hole 9, one end of the first shaft hole 9 is provided with a second mounting groove 10, and one end of the second mounting groove 10 is provided with a second shaft hole 11;

as shown in fig. 2, 6 and 7, the second rotating shaft 19 is rotatably installed in the first shaft hole 9, the trigger bar 5 is fixedly installed at one end of the second rotating shaft 19 and located in the first installation groove 8, and the plate spring 20 is installed between the trigger bar 5 and the first installation groove 8; the second gear 18 is fixedly arranged at the other end of the second rotating shaft 19 and is positioned in the second mounting groove 10, the first rotating shaft 16 is rotatably arranged in the second shaft hole 11, the first gear 17 is fixedly arranged at one end of the first rotating shaft 16 and is positioned in the second mounting groove 10, and the first gear 17 is meshed with the second gear 18; one end of the driving telescopic rod 3 is installed at the other end of the first rotating shaft 16 through the universal joint 15, the first rotating shaft 16 and the heat preservation cover 2 form an acute angle, and when the fixing plate 26 slides up and down to the middle position of the stroke of the fixing plate, and the heat preservation cover 2 is in a closed state, the first rotating shaft 16 and the telescopic rod are collinear.

When the heat preservation cover 2 is closed, the trigger spring 5 arranged on the heat preservation cover 2 can be extruded and swung by the upper end face of the heat preservation cover 2, the trigger bar 5 swings to drive the second rotating shaft 19 to rotate, the second rotating shaft 19 rotates to drive the second gear 18 to rotate, the second gear 18 rotates to drive the first gear 17 to rotate, the first gear 17 rotates to drive the first rotating shaft 16 to rotate, and the first rotating shaft 16 rotates to drive the telescopic outer sleeve 22 of the telescopic rod 3 to rotate through the universal joint 15. The action of the plate spring 20 acts to reset the trigger bar 5.

As shown in fig. 8, the driving telescopic rod 3 includes a telescopic inner rod 21, a telescopic outer sleeve 22, an elliptical sliding column 23, and a return spring 24, wherein the inner circular surface of the telescopic outer sleeve 22 is elliptical, one end of the telescopic outer sleeve 22 is connected to the first rotating shaft 16 through the universal joint 15, the elliptical sliding column 23 is installed at one end of the telescopic inner rod 21, one end of the telescopic inner rod 21 is installed in the telescopic outer sleeve 22 through the sliding fit of the elliptical sliding column 23 and the telescopic outer sleeve 22, and the return spring 24 is installed between the elliptical sliding column 23 and the inner end surface of the telescopic outer sleeve 22.

In the invention, because the elliptical sliding column 23 slides in the telescopic outer sleeve 22 and the telescopic inner rod 21 is connected with the hook sleeve of the swing plate 25 and cannot rotate relative to the swing plate 25, when the telescopic outer sleeve 22 rotates, the telescopic outer sleeve 22 can extrude and rub with the elliptical sliding column 23, and the telescopic outer sleeve 22 and the telescopic inner rod 21 are locked by friction.

As shown in fig. 3, a pull ring 6 is mounted on one side of the swing plate 25, a driving hook 14 is fixedly mounted on one end of the telescopic inner rod 21 which is not inserted into the telescopic outer sleeve 22, and the driving hook 14 is connected with the pull ring 6. The purpose of this design is to facilitate removal of the pressure plate 4.

As shown in fig. 5 and 6, a first seal strip 12 is attached between the heat insulating cover 2 and the upper end surface of the heat insulating box 1. The first sealing strip 12 is used for ensuring the sealing performance between the heat preservation cover 2 and the heat preservation box body 1 and improving the heat preservation effect.

According to the heat preservation box designed by the invention, when food is taken, the swinging plate 25 only needs to be opened through the heat preservation cover 2, and the swinging plate 25 is shorter than the heat preservation cover 2, so that the situation that the food is mistakenly stuck on the arm is reduced to a certain extent when the food is taken; preventing the hands from being soiled and the food from being polluted.

The elastic coefficient of the return spring 24 in the driving telescopic rod 3 is small, but the original length of the return spring is longer than the length of the return spring in the driving telescopic rod 3, the compression amplitude of the return spring 24 in the working process of the driving telescopic rod 3 is the best fifth of the original length, the change of the compressible resistance of the driving telescopic rod 3 in the working process can be ensured to be small, a small value can be maintained, and the requirement on sealing is reduced.

The specific working process is as follows: when the insulation can designed by the invention is used, the insulation cover 2 is closed, the designed driving telescopic rod 3 can drive the pressing plate 4 to slide up and down in the insulation can body 1, the sliding distance is automatically adjusted according to the amount of food in the insulation can body 1, and the insulation effect of the food is ensured.

When food is taken, the heat preservation cover 2 is opened, the heat preservation cover 2 drives the driving telescopic rod 3 to swing upwards when being opened, the reset spring 24 on the inner side of the driving telescopic rod 3 resets when the driving telescopic rod 3 swings upwards, and after the reset, the driving telescopic rod 3 drives the pressing plate 4 to move upwards integrally; move the in-process on clamp plate 4, when gag lever post 27 and insulation box 1 go up the first draw-in groove 13 of opening during the cooperation, gag lever post 27's one end will insert in first draw-in groove 13, fixed plate 26 is spacing by insulation box 1, and the swing of pendulum plate 25 relative fixed plate 26 is spacing to be relieved, drive telescopic link 3 extends to the longest state this moment, when insulation cover 2 continues to open, drive telescopic link 3 continues the swing, the relative fixed plate 26 of pulling pendulum plate 25 is gone up the swing and is opened, and then take the food in the insulation box 1.

When the pressing plate 4 is taken down for cleaning, the limiting rod 27 limits the fixed plate 26 and the heat preservation box body 1 because the pressing plate 4 is positioned at the uppermost side, so that when the pressing plate 4 is taken down, firstly, the connection between the driving hook 14 and the pull ring 6 is opened, and then, the swinging plate 25 is pulled upwards to open the swinging plate 25; after the swinging plate 25 is opened, the fixing plate 26 is pressed downwards, so that the limiting rod 27 between the limiting fixing plate 26 and the heat preservation box body 1 is separated from the heat preservation box body 1 to remove the limiting, and finally the pressing plate 4 can be taken down for cleaning.

Claims

1. An insulation can comprises an insulation can body and an insulation cover, wherein one end of the insulation cover is arranged on the insulation can body in a hinged mode; the method is characterized in that: a pressing plate is slidably mounted in the insulation box body and consists of a fixed plate and a swinging plate, one end of the fixed plate is provided with a swinging plate mounting groove which is communicated up and down, the fixed plate is in sliding fit with the inner wall surface of the insulation box body, and the swinging plate is arranged in the swinging plate mounting groove in a swinging manner; a driving telescopic rod for driving the pressure plate to slide up and down in the heat insulation box body and driving the swinging plate to swing relative to the fixed plate is arranged between the heat insulation cover and the swinging plate;

the driving telescopic rod is of a telescopic structure, and a return spring is arranged on the inner side of the driving telescopic rod; a trigger spring is further mounted on the heat-insulating cover, and the trigger spring is in transmission connection with the driving telescopic rod through a gear; after the heat insulation cover is closed, the trigger strip is extruded by the upper end face of the heat insulation box body to trigger and swing, the telescopic outer sleeve of the driving telescopic rod rotates relative to the telescopic inner rod through the swinging of the trigger strip through gear transmission, and the telescopic outer sleeve and the telescopic inner rod rotate relative to each other to lock the telescopic function of the driving telescopic rod;

a limiting rod is arranged on the inner side of one end, which is not provided with the swinging plate mounting groove, of the fixed plate, a limiting spring is arranged between the limiting rod and the fixed plate, and the limiting spring is an extension spring and has pretension force;

a second clamping groove is formed in the round surface of one end, provided with the fixed shaft, of the swing plate, and a first clamping groove is formed in the wall surface of the upper end of the heat insulation box body;

2. An incubator according to claim 1, wherein: limiting strips which have the limiting effect on the upward sliding of the pressing plate are arranged on three wall surfaces at one end of the heat preservation box body;

3. An incubator according to claim 1, wherein: two symmetrically distributed mounting holes are formed in two side faces of one end of a swinging plate mounting groove formed in the fixed plate, and a first step face higher than the bottom face is formed in the lower side of the other end of the swinging plate mounting groove; the bottom surface of the swinging plate is provided with a second step surface, one end of the swinging plate is symmetrically provided with two fixed shafts, the swinging plate is arranged on the fixed plate through the matching of the two fixed shafts and the two mounting holes, and the second step surface on the swinging plate is matched with the first step surface at the lower end of the mounting groove of the swinging plate;

both side surfaces of the mounting groove of the swing plate, which are not provided with the mounting holes, are arc surfaces in swing fit with the swing plate; the arc center line of the arc surface is the axis of the swing plate;

a third sealing strip is arranged between the second step surface on the swinging plate and the first step surface in the swinging plate mounting groove; a first arc-shaped sealing strip and a second arc-shaped sealing strip are arranged on two side surfaces, which are not provided with the mounting holes, in the mounting groove of the swing plate;

4. An incubator according to claim 1, wherein: the heat preservation cover is provided with a first mounting groove, one end of the first mounting groove is provided with a first shaft hole, one end of the first shaft hole is provided with a second mounting groove, and one end of the second mounting groove is provided with a second shaft hole;

the second rotating shaft is rotatably arranged in the first shaft hole, the trigger strip is fixedly arranged at one end of the second rotating shaft and is positioned in the first mounting groove, and a plate spring is arranged between the trigger spring and the first mounting groove; the second gear is fixedly arranged at the other end of the second rotating shaft and is positioned in the second mounting groove, the first rotating shaft is rotatably arranged in the second shaft hole, the first gear is fixedly arranged at one end of the first rotating shaft and is positioned in the second mounting groove, and the first gear is meshed with the second gear; one end of the driving telescopic rod is arranged at the other end of the first rotating shaft through a universal joint; the first rotating shaft and the heat-insulation cover form an acute angle, and when the fixing plate slides up and down to the middle position of the stroke of the fixing plate and the heat-insulation cover is in a closed state, the first rotating shaft and the telescopic rod are collinear;

the driving telescopic rod comprises a telescopic inner rod, a telescopic outer sleeve, an elliptical sliding column and a reset spring, wherein the inner circular surface of the telescopic outer sleeve is elliptical, one end of the telescopic outer sleeve is connected with the first rotating shaft through a universal joint, the elliptical sliding column is mounted at one end of the telescopic inner rod, one end of the telescopic inner rod is mounted in the telescopic outer sleeve through the sliding fit of the elliptical sliding column and the telescopic outer sleeve, and the reset spring is mounted between the elliptical sliding column and the inner end surface of the telescopic outer sleeve;