阅读说明：本技术 平台升降装置及其具有该加热装置的封膜仪 (Platform lifting device and film sealing instrument with same ) 是由 赵天杰 严才祥 陈震南 于 2019-11-28 设计创作，主要内容包括：本发明公开了平台升降装置,包括双连杆机构,双连杆机构包括第一连杆、第二连杆、把手、第一静音轴承和第二静音轴承,第一连杆的上端连接滑块机构,第一连杆的下端连接有第一连接铰接轴,第一连接铰接轴连接有第一连接铰接板,第一连杆的下部活动连接有第一静音轴承,第一静音轴承连接把手,第二连杆的上端连接滑块机构,第二连杆的下端连接有第二连接铰接轴,第二连接铰接轴连接有第二连接铰接板,第二连杆的下部活动连接有第二静音轴承,第二静音轴承连接把手。采用中间双立柱支撑双连杆抬起方式升降,形成转动副和滑动导轨移动副,该转动副和滑动导轨移动副组成的曲柄滑块上升机构,与传统硬摩擦机构相比,大大提升了稳定性和使用寿命。(The invention discloses a platform lifting device which comprises a double-link mechanism, wherein the double-link mechanism comprises a first connecting rod, a second connecting rod, a handle, a first mute bearing and a second mute bearing, the upper end of the first connecting rod is connected with a sliding block mechanism, the lower end of the first connecting rod is connected with a first connecting hinged plate, the first connecting hinged plate is connected with the first connecting hinged plate, the lower part of the first connecting rod is movably connected with the first mute bearing, the first mute bearing is connected with the handle, the upper end of the second connecting rod is connected with the sliding block mechanism, the lower end of the second connecting rod is connected with a second connecting hinged plate, the second connecting hinged plate is connected with the second connecting hinged plate, the lower part of the second connecting rod is movably connected with the second mute bearing, and the second mute bearing is connected with the handle. The lifting mechanism adopts a middle double-upright-column supporting double-connecting-rod lifting mode to lift, a revolute pair and a sliding guide rail moving pair are formed, and compared with a traditional hard friction mechanism, the crank block lifting mechanism formed by the revolute pair and the sliding guide rail moving pair greatly improves the stability and prolongs the service life.)

1. Platform elevating gear, including two link mechanism, its characterized in that: the double-link mechanism comprises a first connecting rod, a second connecting rod, a handle, a first mute bearing and a second mute bearing, the upper end of the first connecting rod is connected with the slider mechanism, the lower end of the first connecting rod is connected with a first connecting hinged shaft, the first connecting hinged shaft is connected with a first connecting hinged plate, the lower part of the first connecting rod is movably connected with the first mute bearing, the first mute bearing is connected with the handle, the upper end of the second connecting rod is connected with the slider mechanism, the lower end of the second connecting rod is connected with a second connecting hinged shaft, the second connecting hinged shaft is connected with a second connecting hinged plate, the lower part of the second connecting rod is movably connected with the second mute bearing, and the second mute bearing is connected with the handle.

2. The platform lift arrangement of claim 1, wherein: the double-link mechanism further comprises a reset assembly, the reset assembly comprises a spring hanging plate and a reset tension spring, the spring hanging plate is fixedly installed between the first connecting rod and the second connecting rod, the reset tension spring is arranged on the lower portion of the spring hanging plate, and the lower end of the reset tension spring is fixedly connected to the rack.

3. The platform lift arrangement of claim 1, wherein: platform elevating gear still includes slider mechanism, slider mechanism is located the upper portion of double link mechanism, slider mechanism include slider, slider fixed block, guide rail, major axis, connection bearing and major axis end plate, the upper portion of slider fixed block is equipped with the slider, slider accordant connection guide rail, the upper portion of guide rail is connected induction system, the middle part through connection of slider fixed block has the major axis, the both ends of major axis are equipped with the connection bearing, the connection bearing is connected with the major axis end plate, the both ends of major axis are connected respectively first connecting rod and second connecting rod.

4. The platform lift arrangement of claim 1, wherein: the handle comprises a handle middle connecting rod, a handle side part first connecting rod and a handle side part second connecting rod, one end of the handle middle connecting rod is hinged to the upper end of the handle side part first connecting rod, the other end of the handle middle connecting rod is hinged to the upper end of the handle side part second connecting rod, the lower end of the handle side part first connecting rod is hinged to a first mute bearing, and the lower end of the handle side part second connecting rod is hinged to a second mute bearing.

5. The platform lift arrangement of claim 4, wherein: and a third connecting hinged plate is arranged at the middle lower part of the first connecting rod at the side part of the handle, and a fourth connecting hinged plate is arranged at the middle lower part of the second connecting rod at the side part of the handle.

6. Seal membrane appearance, its characterized in that: comprising a platform lifting device according to any of claims 1-4.

7. The film sealing instrument according to claim 6, wherein: the film sealing instrument further comprises a frame, an upper cover assembly and a push-pull module fixing frame assembly, the push-pull module fixing frame assembly is arranged on the front side of the frame, the upper cover assembly is arranged on the rear side of the frame, the heating device is arranged on the lower side of the front portion of the upper cover assembly, the push-pull module fixing frame assembly matched with the heating device is arranged below the heating device, the sensing device is arranged on the lower portion of the push-pull module fixing frame assembly, and the platform lifting device is arranged on the lower portion of the sensing device.

8. The film sealing instrument according to claim 7, wherein: the fixed frame assembly of the push-pull module comprises a microporous plate, a module adapter, a fixed frame of the module, an L-shaped guide plate and a T-shaped guide rail, wherein the module adapter is installed on the upper portion of the fixed frame of the module through a screw, the microporous plate is arranged on the module adapter, the T-shaped guide rail is installed on the lower portion of the fixed frame of the module, and the L-shaped guide plate is arranged on two sides of the T-shaped guide rail.

Technical Field

The invention relates to the field of film sealing instruments, in particular to a platform lifting device and a film sealing instrument with the same.

Background

The heat sealing of various microplates is mainly applied to sample sealing which needs long-term freezing storage, long-term sealing of blood samples, sealed storage and transportation of analysis samples of disease control departments, sealing of microplates packaged in kits of kit manufacturers, sample evaporation prevention of DNA gene amplification experiments, sample storage and related experiments of 96 microplates and 384 microplates (hereinafter referred to as microplates) which are routinely performed in laboratories of auxiliary scientific research units, hospitals, universities and the like.

In the work such as medical treatment, laboratory, scientific research, the sample that needs to freeze for a long time to deposit is sealed not tight enough, and liquid leaks easily, volatilizees, inequality such as rotten inefficacy problem, and the manual membrane appearance of sealing of conventionality encapsulates quality and depends on operator's arm strength size, press time and orifice plate and seal the roughness. The size of the arm force of an operator and the time directly influence whether the pore plate is completely sealed, the pore plate orifice is melted to pollute the test solution if the pressing time is too long, the packaging pressure of different types of pore plates is completely controlled by the size of the arm force of the operator, and the mechanical damage of the pore plate is easily caused by the overlarge arm force. Pore plates with uneven seals or slight distortions can result in local failure to seal, and such pore plates are discarded, resulting in waste of resources. The traditional manual film sealing instrument pore plate is positioned under the heating module, and an operator puts and takes the pore plate and directly faces the heating module (the temperature is about 200 ℃ generally) by hand back, so that scalding is easily caused. Because the last hot plate of ordinary manual seal membrane appearance is the plane usually, to the middle sunken area shirt rim formula orifice plate that the market is commonly used, just can't realize the encapsulation, the user adopts often to take gum self-adhesion type membrane to encapsulate with manual pressing mode, and the arm strength is improper or the orifice plate atress is inhomogeneous appears incompletely sealed easily, or the membrane gum pollutes the circumstances such as test solution. In view of the above situation, the present application provides a pressure-sensing planar compensation type multipurpose membrane sealing instrument.

Disclosure of Invention

The invention aims to provide a platform lifting device and a film sealing instrument with the heating device, aiming at the defects of the prior art.

In order to solve the technical problems, the following technical scheme is adopted:

platform elevating gear, including two link mechanism, two link mechanism include first connecting rod, second connecting rod, handle, first silence bearing and second silence bearing, the upper end of first connecting rod is connected slider mechanism, the lower extreme of first connecting rod is connected with first connection articulated shaft, first connection articulated shaft is connected with first connection articulated slab, the lower part swing joint of first connecting rod has first silence bearing, first silence bearing is connected the handle, the upper end of second connecting rod is connected slider mechanism, the lower extreme of second connecting rod is connected with the second and is connected the articulated slab, the articulated slab is connected to the second connection articulated shaft and is connected with the second, the lower part swing joint of second connecting rod has second silence bearing, second silence bearing is connected the handle.

Further, the double-link mechanism further comprises a reset assembly, the reset assembly comprises a spring hanging plate and a reset tension spring, the spring hanging plate is fixedly installed between the first connecting rod and the second connecting rod, the reset tension spring is arranged on the lower portion of the spring hanging plate, and the lower end of the reset tension spring is fixedly connected to the rack.

Further, platform elevating gear still includes slider mechanism, slider mechanism is located the upper portion of two link mechanism, slider mechanism includes slider, slider fixed block, guide rail, major axis, connection bearing and major axis end plate, the upper portion of slider fixed block is equipped with the slider, slider accordant connection guide rail, the upper portion of guide rail is connected induction system, the middle part through connection of slider fixed block has the major axis, the both ends of major axis are equipped with the connection bearing, the connection bearing is connected with the major axis end plate, the both ends connection of major axis is connected respectively first connecting rod and second connecting rod.

Further, the handle comprises a handle middle connecting rod, a handle side portion first connecting rod and a handle side portion second connecting rod, one end of the handle middle connecting rod is hinged to the upper end of the handle side portion first connecting rod, the other end of the handle middle connecting rod is hinged to the upper end of the handle side portion second connecting rod, the lower end of the handle side portion first connecting rod is hinged to a first mute bearing, and the lower end of the handle side portion second connecting rod is hinged to a second mute bearing.

Furthermore, a third connecting hinge plate is arranged at the middle lower part of the first connecting rod at the side part of the handle, and a fourth connecting hinge plate is arranged at the middle lower part of the second connecting rod at the side part of the handle.

The film sealing instrument comprises the platform lifting device.

The film sealing instrument further comprises a frame, an upper cover assembly and a push-pull module fixing frame assembly, wherein the push-pull module fixing frame assembly is arranged on the front side of the frame, the upper cover assembly is arranged on the rear side of the frame, the heating device is arranged on the lower side of the front portion of the upper cover assembly, the push-pull module fixing frame assembly matched with the heating device is arranged below the heating device, the sensing device is arranged on the lower portion of the push-pull module fixing frame assembly, and the platform lifting device is arranged on the lower portion of the sensing device.

Further, the fixed frame assembly of push-pull module comprises a micropore plate, a module adapter, a fixed frame of module, an L-shaped guide plate and a T-shaped guide rail, wherein the module adapter is installed on the upper part of the fixed frame of module through a screw, the micropore plate is arranged on the module adapter, the T-shaped guide rail is installed on the lower part of the fixed frame of module, and the L-shaped guide plate is arranged on two sides of the T-shaped guide rail.

Due to the adoption of the technical scheme, the method has the following beneficial effects:

the invention relates to a platform lifting device and a film sealing instrument with the same, which have simpler and safer operation process and tighter micropore plate packaging. The method has the following advantages:

1. the lifting mode that the middle double-upright-column supports the double-connecting-rod is adopted, the lifting mode is adopted, the two ends of the double-connecting-rod are hinged to form a crank-slider mechanism with an intermediate support plate of the induction device, the slider mechanism is a double-silent linear guide rail assembly, a sliding block fixing block and a guide rail of the slider mechanism form a sliding guide rail moving pair, and the double-silent bearing drives a connecting rod to form a rotating pair. Compared with a traditional hard friction mechanism, the crank block lifting mechanism consisting of the revolute pair and the sliding guide rail sliding pair greatly improves the stability and prolongs the service life.

2. After the encapsulation is completed, the platform is reset by the two spring hanging plates connected with the crank under the action of two tension spring forces, and the fixed frame is pulled open to take out the pore plate. The whole operation is smooth and safe, and the ergonomics is better.

Drawings

The invention will be further described with reference to the accompanying drawings in which:

FIG. 1 is an overall view of the pressure-sensitive planar compensation type multipurpose film sealing instrument of the present invention.

FIG. 2 is a longitudinal sectional view of the pressure-sensitive planar compensation type multipurpose film sealing instrument.

Fig. 3 is a structural view of the heating apparatus of the present invention.

Fig. 4 is a structural view of a fixing frame assembly of the push-pull module according to the present invention.

Fig. 5 is a schematic view of the connection of the sensing device and the slider mechanism of the present invention.

Fig. 6 is a structural view of the double link mechanism of the present invention.

The following are marked in the figure: 1-1: a platform lifting device; 1-2: an upper cover assembly; 1-3: a frame; 1-4: a lifting platform; 1-5 frames;

2-1: a heating device; 2-3: a push-pull module fixing frame assembly; 2-4: an induction device; 2-5: a slider mechanism;

3-1: an upper cover main bracket; 3-2: a mineral wool board heat insulation board; 3-3: a heating rod; 3-4: a central temperature sensor; 3-5: a safety switch; 3-6: heating plates; 3-7: a heating rod mounting groove; 3-8: a heating rod fixing sheet; 3-9: slotting the heat insulation plate;

4-1: a microporous plate; 4-2: a module adapter; 4-3: a module fixing frame; 4-4: an L-shaped guide plate; 4-5: a T-shaped guide rail; 4-6: a push-pull handle;

5-1: a pressure sensor; 5-2: a cover plate; 5-3: a pressure head; 5-4: a middle pressure spring; 5-5: a fixing plate; 5-6: a direct bearing seat; 5-7: a spring guide post; 5-8: a long shaft end plate; 5-9: connecting a bearing; 5-10: a long axis; 5-11: a sliding block fixing block; 5-12: a sliding block fixing block; 5-13: a guide rail; 5-14: intermediate support plates 5-14; 5-15: mounting a through hole; 5-16: a fixing through hole; 5-17: lifting the linear column; 5-18: a planar compensation spring; 5-19: a planar compensation guide post; 5-20: 5-21 parts of plane compensation base:

6-1: a handle; 6-2: a first link; 6-3: a first mute bearing; 6-4: a return tension spring; 6-5: a spring hanging plate; 6-6: a second link; 6-7: a second mute bearing; 6-8: a first connecting hinge shaft; 6-9: a first connecting hinge plate; 6-10: a second connecting hinge shaft; 6-11: a second connecting hinged plate; 6-12: a handle intermediate link; 6-13: a first link at a side of the handle; 6-14: a second link at a side of the handle; 6-15: the third is connected with the articulated shaft; 6-16: a third connecting hinged plate; 6-17: the fourth is connected with a hinged shaft; 6-18: and the fourth connecting hinged plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood, however, that the description herein of specific embodiments is only intended to illustrate the invention and not to limit the scope of the invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

As shown in fig. 1 and 2, the pressure-sensitive planar compensation type multipurpose membrane sealing instrument comprises a rack 1-5, an upper cover assembly 1-2 and a push-pull module fixing frame assembly 2-3, wherein the push-pull module fixing frame assembly 2-3 is arranged on the front side of the rack 1-5, the upper cover assembly 1-2 is arranged on the rear side of the rack 1-5, a heating device 2-1 is arranged on the lower side of the front part of the upper cover assembly 1-2, the push-pull module fixing frame assembly 2-3 matched with the heating device 2-1 is arranged below the heating device 2-1, and the push-pull module fixing frame assembly 2-3 is used for bearing a microporous plate 4-1 to facilitate placing and taking of the microporous plate. The lower part of the push-pull module fixing frame assembly 2-3 is provided with a sensing device 2-4, and the sensing device 2-4 is used for monitoring and displaying the arm strength of an operator in real time. The lower part of the induction device 2-4 is provided with a platform lifting device 1-1, the platform lifting device 1-1 comprises a sliding block mechanism and a double-connecting-rod mechanism, the sliding block mechanism is arranged at the lower part of the induction device 2-4, and the sliding block mechanism is connected with the double-connecting-rod mechanism.

Specifically, in this embodiment, a display screen 1-6 is disposed on the front side of the rack 1-5, and a display screen circuit board 1-7 is disposed in the display screen 1-6 and can display working information during film sealing.

Specifically, in this embodiment, referring to fig. 3, the heating device 2-1 includes a plurality of heating rods 3-3, a heating plate 3-6, a central temperature sensor 3-4 and a safety switch 3-5, the heating rods 3-3 are uniformly arranged at four corners of the heating plate 3-6, the central temperature sensor 3-4 and the safety switch 3-5 are arranged at the rear side of the heating plate 3-6, and the safety switch 3-5 is connected to the heating rods 3-3. The heating device 2-1 provides a constant-temperature uniform heat source, the temperature is controlled at 80-200 ℃, and the adjustment can be carried out.

Specifically, in this embodiment, the heating plate 3-6 is divided into a middle boss and a lower middle plate, the middle plate is 116 × 77mm, the boss is 3mm high, and is completely matched with the hollow packaging part of the market middle concave skirt-type micro-pore plate 4-1, and 4 100W rapid heating rods 3-3 are used to uniformly arrange the periphery of the boss to ensure uniform heat of the boss.

Specifically, in the embodiment, the heating device 2-1 further comprises a mineral wool board heat insulation board 3-2, the mineral wool board heat insulation board 3-2 is arranged on the upper portion of the heating board 3-6, a heat insulation board slot 3-9 is arranged on the rear side of the mineral wool board heat insulation board 3-2, and the heat insulation board slot 3-9 is matched with the safety switch 3-5.

Specifically, in this embodiment, the heating device 2-1 further includes an upper cover main support 3-1, the upper cover main support 3-1 is fixedly mounted on the upper cover assembly 1-2, and the upper cover main support 3-1 is fixedly connected to the heating plate 3-6 through a bolt.

Specifically, in this embodiment, heating rod mounting grooves 3 to 7 are formed in four corners of the heating plates 3 to 6, the heating rod mounting grooves 3 to 7 are matched with the heating rods 3 to 3, heating rod fixing pieces 3 to 8 are arranged outside the heating plates 3 to 6, and the heating rod fixing pieces 3 to 8 are connected to the side portions of the heating plates 3 to 6 through screws.

Starting the machine, heating by four rapid heating rods 3-3, rapidly heating by a heating plate 3-6, uniformly arranging the four heating rods 3-3 around a boss of the heating plate 3-6 to ensure the uniform temperature distribution of the boss, monitoring the temperature of the boss at the center of the heating plate 3-6 by a central temperature sensor 3-4 in real time, actuating a safety switch 3-5 after the preset temperature is reached, stopping heating, and prompting by sound. The heating plate 3-6 and the upper cover main bracket 3-1 are insulated by a mineral wool plate heat insulation plate 3-2, the temperature resistance can reach 800 ℃, and the heat radiation can be prevented from being conducted to the upper cover main bracket 3-1.

Specifically, in this embodiment, referring to fig. 4, the push-pull module fixing frame assembly 2-3 includes a micro-porous plate 4-1, a module adapter 4-2, a module fixing frame 4-3, an L-shaped guide plate 4-4, and a T-shaped guide rail 4-5, the module adapter 4-2 is installed on the upper portion of the module fixing frame 4-3 through a screw, the micro-porous plate 4-1 is disposed on the module adapter 4-2, the T-shaped guide rail 4-5 is installed on the lower portion of the module fixing frame 4-3, and the L-shaped guide plates 4-4 are disposed on two sides of the T-shaped guide rail 4-5. The side surface of the module fixing frame 4-3 is provided with a fixing frame handle, and the corresponding module adapter 4-2 is replaced according to different microporous plates 4-1. Two L-shaped guide plates 4-4 are arranged at the bottom of the module fixing frame 4-3 and slide back and forth on a T-shaped guide rail 4-5 made of high-density POM material, and the high-height and high-crystallization linear polymer POM has the advantages of high strength, stable size, wear resistance and the like, so that the module fixing frame 4-3 slides back and forth smoothly and has low noise. The microporous plate 4-1 and the film are put well and integrally pushed into the position right below the heating plate 3-6, the push-pull handle 4-6 is held tightly to press down, the module fixing frame 4-3 slowly rises along with the platform, and the film and the microporous plate 4-1 are completely contacted with the heating plate 3-6.

Specifically, in this embodiment, referring to fig. 5, the sensing device 2-4 includes a pressure sensor 5-1, a cover plate 5-2, a pressure head 5-3, an intermediate pressure spring 5-4, a fixing plate 5-5 and a spring guide post 5-7, the upper portion of the pressure sensor 5-1 is connected with the cover plate 5-2, the lower portion of the pressure sensor 5-1 is connected with the pressure head 5-3, the pressure head 5-3 is connected with the intermediate pressure spring 5-4, the lower portion of the intermediate pressure spring 5-4 is connected with an intermediate support plate 5-14, the fixing plate 5-5 is provided with an installation wire guide slot 5-21, the installation wire guide slot 5-21 is matched with the pressure sensor 5-1, the middle portion of the fixing plate 5-5 is provided with an installation through hole 5-16, the installation through holes 5-16 are matched with the middle pressure spring 5-4, the four corners of the fixing plate 5-5 are provided with fixing through holes 5-16, the fixing through holes 5-16 are connected with spring guide columns 5-7 through screws, the lower parts of the spring guide columns 5-7 are provided with middle supporting plates 5-14, the side parts of the middle supporting plates 5-14 are provided with direct bearing seats 5-6, and the direct bearing seats 5-6 are connected with the lifting linear columns 5-17. After the film and the microporous plate 4-1 are completely contacted with the heating plate 3-6, the pressure sensor 5-1 of the sensing device 2-4 senses pressure and starts to display the pressure, the upper part presses the upper end face of the pressure sensor 5-1 through the cover plate 5-2, the middle pressure spring 5-4 pushes against the pressure head 5-3, and the pressure head 5-3 is made of skin-imitated flexible silica gel to realize accurate pressure transmission. The arm force of an operator overcomes the elastic force of the spring, the elastic force is transmitted to the pressure sensor 5-1 through the pressure head 5-3, the pressure of the pressure head 5-3 is converted into an electric signal and displayed through the nixie tube, and the arm force of the operator is converted into a visual pressure value. The four spring guide posts 5-7 around adjust the plane position of the upper fixing plate 5-5 according to the stress of the upper part, and the film and the hole are completely jointed with the heating plate 3-6 in an optimal mode for the pore plate with uneven sealing or slight distortion, so as to achieve uniform heating and complete sealing.

Four groups of spring guide columns 5-7 are arranged, each spring guide column 5-7 comprises a plane compensation spring 5-18, a plane compensation guide column 5-19 and a plane compensation base 5-20, the upper part of each plane compensation guide column 5-19 is connected with the corresponding fixed plate 5-5, the lower part of each plane compensation guide column 5-19 is connected with the corresponding middle support plate 5-14, each plane compensation spring 5-18 is sleeved outside each plane compensation guide column 5-19, the upper part of each plane compensation spring 5-18 is connected with the corresponding fixed plate 5-5, the lower part of each plane compensation spring 5-18 is connected with the corresponding plane compensation base 5-20, and each plane compensation base 5-20 is fixedly installed on the corresponding middle support plate 5-14. The spring guide columns 5-7 are arranged at the lower parts of the fixing plates 5-5 and used for plane compensation, so that the film and the microporous plate 4-1 can be conveniently contacted with the heating plates 3-6, the film is better attached and contacted, and the film sealing work is completed.

Specifically, in this embodiment, referring to fig. 6, the dual link mechanism includes a first link 6-2, a second link 6-6, a handle 6-1, a first mute bearing 6-3 and a second mute bearing 6-17, the upper end of the first link 6-2 is connected to the slider mechanism 2-5, the lower end of the first link 6-2 is connected to a first connecting hinge shaft 6-8, the first connecting hinge shaft 6-8 is connected to a first connecting hinge plate 6-9, the lower portion of the first link 6-2 is movably connected to a first mute bearing 6-3, the first mute bearing 6-3 is connected to the handle 6-1, the upper end of the second link 6-6 is connected to the slider mechanism 2-5, the lower end of the second link 6-6 is connected to a second connecting hinge shaft 6-10, the second connecting hinge shaft 6-10 is connected with a second connecting hinge plate 6-11, the lower part of the second connecting rod 6-6 is movably connected with a second silent bearing 6-7, and the second silent bearing 6-7 is connected with the handle 6-1.

In this embodiment, the double-link mechanism further comprises a reset assembly, the reset assembly comprises a spring hanging plate 6-5 and a reset tension spring 6-4, the spring hanging plate 6-5 is fixedly installed between the first link 6-2 and the second link 6-6, the reset tension spring 6-4 is arranged on the lower portion of the spring hanging plate 6-5, and the lower end of the reset tension spring 6-4 is fixedly connected to the rack 1-5.

In the present embodiment, referring to fig. 5 in particular, the slider mechanism 2-5 comprises a slider 5-12, a slider fixing block 5-11, a guide rail 5-13, a long shaft 5-10, a connecting bearing 5-9 and a long shaft end plate 5-8, the upper part of the sliding block fixing block 5-11 is provided with a sliding block 5-12, the sliding block 5-12 is matched and connected with a guide rail 5-13, the upper parts of the guide rails 5 to 13 are connected with the induction devices 2 to 4, the middle parts of the sliding block fixing blocks 5 to 11 are connected with long shafts 5 to 10 in a penetrating way, two ends of the long shaft 5-10 are provided with connecting bearings 5-9, the connecting bearings 5-9 are connected with the long shaft end plate 5-8, two ends of the long shaft 5-10 are respectively connected with the first connecting rod 6-2 and the second connecting rod 6-6.

The handle 6-1 comprises a handle middle connecting rod 6-12, a handle side first connecting rod 6-13 and a handle side second connecting rod 6-14, one end of the handle middle connecting rod 6-12 is hinged to the upper end of the handle side first connecting rod 6-13, the other end of the handle middle connecting rod 6-12 is hinged to the upper end of the handle side second connecting rod 6-14, the lower end of the handle side first connecting rod 6-13 is hinged to a first mute bearing 6-3, and the lower end of the handle side second connecting rod 6-14 is hinged to a second mute bearing 6-7. The middle lower part of the first connecting rod 6-13 at the side part of the handle is provided with a third connecting hinge shaft 6-15, the third connecting hinge shaft 6-15 is connected with a third connecting hinge plate 6-16, the middle lower part of the second connecting rod 6-14 at the side part of the handle is provided with a fourth connecting hinge shaft 6-17, and the fourth connecting hinge shaft 6-17 is connected with a fourth connecting hinge plate 6-18.

The working principle of the platform lifting device 1-1 is as follows: the upper end and the lower end of the first connecting rod 6-2 and the second connecting rod 6-6 are hinged with the middle supporting plate 5-14 of the sensing device 2-4 to form a crank block 5-12 mechanism 2-5, the block 5-12 mechanism 2-5 is a double-mute linear guide rail 5-13 assembly, and the block 5-12, the block fixing block 5-11 and the guide rail 5-13 of the block 5-12 mechanism 2-5 form a sliding guide rail 5-13 moving pair. A lifting platform is arranged between the push-pull module fixing frame 4-3 assembly 2-3 and the sensing device 2-4, the module fixing frame 4-3 assembly is installed on the upper portion of the lifting platform, the sensing device 2-4 is installed on the lower portion of the lifting platform, and when the double-link mechanism drives the sliding block 5-12 mechanism 2-5 and the sensing device 2-4 to move up and down, the module fixing frame 4-3 assembly also moves up and down accordingly.

The double silent bearing drives the first connecting rod 6-2 and the second connecting rod 6-6 to form a revolute pair. The slide block 5-12 is fixed on a slide block fixing block 5-11, the guide rail 5-13 is fixed on a middle supporting plate 5-14, connecting bearings 5-9 used at two ends of the slide block fixing block 5-11 are self-lubricating graphite bearings, a long shaft end plate 5-8 axially positions a long shaft 5-10, the long shaft 5-10 penetrates through the self-lubricating graphite bearings, two ends of the long shaft are fixed with screws of a first connecting rod 6-2 and a second connecting rod 6-6, the double-mute bearing drives the first connecting rod 6-2 and the second connecting rod 6-6 to drive a pressure sensing device 2-4 to move upwards along with the pressing of a handle 6-1, and a spring hanging plate 6-5) drives a reset tension spring 6-4 to move upwards to a tension state.

And under the set pressure and temperature, the heat sealing enters a countdown state, and the buzzer reminds when the timing is finished. And (3) indicating that the packaging is finished, at the moment, slowly reducing the arm force by an operator, enabling the sensing device 2-4 to downwards reach the original position under the action of gravity and the tension and pressure of the reset tension spring 6-4, at the moment, pulling open the module fixing frame 4-3 by the operator, taking out the microporous plate 4-1, pushing the module fixing frame 4-3 to the original position, and finishing the packaging of the microporous plate 4-1.

The above is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions or modifications made on the basis of the present invention to solve the same technical problems and achieve the same technical effects are all covered in the protection scope of the present invention.