CN219344503U - Double door and slicer - Google Patents

Abstract

The utility model provides a double-layer door and a slicing machine, wherein the protective door of the slicing machine is of a double-layer structure, so that horizontal transverse movement can be realized under the action of a connecting device with a transverse movement function, and a self-sealing effect is achieved when the protective door is closed; according to the automatic door body horizontal sliding device, the driven door body and the driving door body are connected conveniently, and meanwhile, the driven door body can well horizontally move relative to the driving door body, in addition, by arranging the double-layer door on the slicing machine, the automatic door body horizontal sliding device can meet the basic functions of convenient maintenance and prevent objects such as mortar in an operation area from splashing, and meanwhile, the technical effect of preventing oil mist and water mist from diffusing outside the operation area can be achieved through the self-sealing mechanism; and the power auxiliary mechanism is arranged on the double-layer door, so that the common sliding door is further improved, the sealing of water mist and oil mist can not be realized, and the current situation of small sliding resistance can be considered.

Description

Double door and slicer

Technical Field

The utility model relates to the technical field of wire cutting, in particular to a double-layer door and a slicing machine.

Background

During operation of the diamond wire slicing machine, such as a photovoltaic slicing machine, a magnetic material slicing machine, a semiconductor slicing machine and the like, cutting fluid needs to be sprayed to a piece to be cut and a cutting line, lubricating oil needs to be arranged in a bearing in a main cutting roller, and a large amount of heat can be generated in the cutting process, so that the cutting fluid and the lubricating oil in a cutting chamber of the slicing machine can be heated and evaporated to form oil mist or water mist, a slicing machine protection door in the prior art is of a single-layer door structure, and the airtight effect cannot be achieved, so that the protection effect on the oil mist and the water mist is poor, and accordingly the oil mist and the water mist can pollute surrounding working environments. Based on the problems in the prior art, there is a need for a microtome that reduces the leakage of mist and oil mist.

Disclosure of Invention

According to the technical scheme, the double-layer door and the slicing machine are provided, and the double-layer door structure capable of achieving the air sealing effect is designed, so that oil mist and water mist generated in the cutting process of the slicing machine are reduced to float outside an operation area.

The utility model provides a double-layer door, which comprises a driven door body and a driving door body, wherein a connecting device is arranged between the driving door body and the driven door body, the connecting device is used for enabling the driven door body to realize the displacement of water in a preset direction under the driving of the driving door body, and the self-sealing effect of the double-layer door can be realized when the double-layer door is matched with a fixed door frame through the horizontal displacement of the driven door body and the driving door body.

According to the technical scheme, at least two groups of connecting devices are arranged between the driving door body and the driven door body, so that the stability and the firmness of the double-layer door motion are ensured.

According to a further optimization of the technical scheme of the utility model, the connecting device comprises: the connecting piece, first dead lever and second dead lever, just the connecting piece respectively with first dead lever with the second dead lever rotates to be connected so that first dead lever with the second dead lever produces relative displacement in the direction of predetermineeing, through the rotation of connecting piece and two dead levers to be connected, the distance in the horizontal direction between first dead lever and the second dead lever can be followed 0-1 unit distance and changed (1 unit distance indicates the length of connecting piece). The driven door body is connected with the first fixed rod, and the driving door body is connected with the second fixed rod.

According to further optimization of the technical scheme, at least one connecting piece is arranged between the first fixing rod and the second fixing rod; the connecting piece respectively with first dead lever with the second dead lever is connected through the bearing, realizes connecting device's fastness and flexibility of using through this design, is difficult for appearing blocking when rotating.

According to further optimization of the technical scheme, the first fixing rod and the second fixing rod are respectively provided with a fixing assembly, and the fixing assemblies comprise bearing seats and fixing bearings fixed on the first fixing rod or the second fixing rod.

According to further optimization of the technical scheme, the connecting devices are horizontally arranged between the driven door body and the driving door body, and all the connecting devices are parallel to each other; and a tension mechanism is arranged on the driving door body.

According to the technical scheme, the mechanical control or manual control of the double-layer door can be realized by adopting the traction hook or/and the handle as the tension mechanism.

According to further optimization of the technical scheme, the driven door body is provided with the access window, and the access window is provided with the detachable access door plate. The driven door body and the access door plate can be made of sheet metal materials and are detachably connected through screws.

A slicer comprising a body and the double door described above, the double door being slidably disposed up and down on a door frame of the body; sealing mechanisms are respectively arranged between the double-layer door and the body, and through the arrangement of vertical sliding, the connecting device capable of realizing horizontal displacement between the double-layer door can be triggered, so that the technical effect of self sealing is realized by matching with the sealing mechanisms.

According to the technical scheme, the double-layer door is further optimized, the sliding block is arranged on the double-layer door, the sliding rail matched with the sliding block is arranged on the door frame, the double-layer door is limited in position through the sliding rail, and meanwhile the smoothness of up-and-down sliding is guaranteed.

According to the technical scheme, the sliding block is arranged on the driving door body, and the sealing mechanism is arranged between the sliding block and the sliding rail, so that dust or other objects in the external environment are prevented from entering the inside of the slicing machine.

According to the technical scheme, the bottom of the door frame is provided with the boss, the sealing mechanism is arranged between the boss and the bottom of the driving door body, liquid in the cutting chamber can be prevented from flowing out through the boss, and water on the bottom surface of the cutting chamber is prevented from splashing outside the cutting machine from the non-closed gate when the driven door body falls to the ground.

According to the technical scheme, the active door body of the double-layer door is provided with the positioning bolt, and the body is provided with the positioning hole matched with the positioning bolt, so that the fixed point of the double-layer door when the double-layer door is opened or closed is conveniently fixed.

The technical scheme of the utility model is further optimized, and the double-door sealing device further comprises a sealing detection module and an information feedback module which are electrically connected with each other, wherein the sealing detection module is used for detecting whether the double-door reaches a sealing condition or not, and the information feedback module is used for receiving an electric signal transmitted by the sealing detection module and feeding back a signal whether working equipment can be started or not to a control unit of the body. Through this design, can detect whether double-deck door reaches sealing state to the work of control body, if detect not reach sealing state, the equipment in the cutting room can't start.

According to further optimization of the technical scheme, the sealing detection module comprises a detection sensor and an in-place device arranged on the double-layer door, the detection sensor is arranged at a preset position, and when the in-place device reaches the detected position, the double-layer door is proved to be in a completely closed state.

According to the technical scheme, the in-place device is arranged at the top of the driven door body, and the space is reasonably utilized to facilitate the installation and detection of equipment.

According to the technical scheme, the in-place device comprises the supporting part, the connecting part and the sensing part, the sensing part is connected with the supporting part through the connecting part, the supporting part is connected with the driven door body, the sensing part is not on the same vertical plane with the driven door body, interference during up-and-down movement of the driven door body is avoided, the sensing part is independently detected through the connecting part, and the detection result is more accurate.

According to the technical scheme, the double-layer door is further optimized, the double-layer door further comprises a power auxiliary mechanism, the power auxiliary mechanism is arranged on the active door body and used for reducing resistance when the double-layer door is opened or closed, and the double-layer door is more flexible when the double-layer door is opened or closed manually through the design.

According to the technical scheme, the power auxiliary mechanism is a counterweight device, the counterweight device comprises a counterweight block, a pulley block and a traction rope, the traction rope is connected with the driving door body through a traction hook, and a yielding frame is arranged between the traction hook and the driving door body.

Compared with the prior art, the technical scheme of the utility model has the advantages that: the protective door of the slicing machine is arranged into a double-layer structure, the driving door body is connected with power to drive the driven door body to move, the driven door body can horizontally move under the action of the connecting device with the transverse movement function in the moving process, and the self-sealing effect is achieved when the protective door is closed; according to the horizontal sliding door, the driven door body and the driving door body are connected conveniently, and meanwhile, the driven door body can well horizontally move relative to the driving door body, and the clamping can be prevented in the moving process by respectively arranging the bearing connection mechanisms between the fixed rod and the connecting piece and between the fixed rod and the connected device, so that the horizontal sliding of the driven door body in the horizontal direction can be realized under the action of the weight or the slight pulling force of the driving door body; the safety control unit comprising the sealing detection module and the information feedback module is designed between the top of the cutting chamber of the cutting machine and the top of the driven door body, so that the cutting machine can work under the premise that the double-layer door is completely sealed; in addition, by arranging the double-layer door on the slicing machine, the technical effects of preventing oil mist and water mist from diffusing outside the operation area can be achieved through the self-sealing mechanism while the basic convenience of feeding and discharging, assembly and maintenance and the prevention of splashing of objects such as mortar in the operation area are met; and the power auxiliary mechanism is arranged on the double-layer door, so that the common sliding door is further improved, the sealing of water mist and oil mist can not be realized, and the current situation of small sliding resistance can be considered.

Drawings

The utility model will be described in more detail hereinafter on the basis of embodiments and with reference to the accompanying drawings.

FIG. 1 is a schematic view of the structure of the connecting device of the present utility model;

FIG. 2 is a schematic cross-sectional view of the connecting device of the present utility model in a use state;

FIG. 3 is a schematic perspective view of a double door of the present utility model;

FIG. 4 is a schematic view of the overall structure of the double door of the present utility model;

FIG. 5 is a schematic side view of a double door of the present utility model;

FIG. 6 is a schematic illustration of the operation of a double door on the microtome of the present utility model;

fig. 7 is a schematic view of the overall structure of the slicer of the present utility model.

In the drawings, like parts are designated with like reference numerals. The figures are not drawn to scale.

Description of the reference numerals:

1-a connecting device; 11-a first fixing rod; 12-a second fixing rod; 13-bearing seats; 14-connecting piece; 15-fixing the bearing; 16-positioning the shaft sleeve; 17-limiting plates; 18-limiting screws;

2-a driven door body; 21-an access door panel; 22-in-place device;

3-an active door body; 31-traction hooks; 32-a slider; 33-positioning a bolt; 34-handle;

4-sliding rails; 51-balancing weight; 52-pulley support; 53-hauling rope; 54-fixed pulleys;

6-a body; 61-a cutting chamber; 62-boss; 63-sealing strip.

Detailed Description

The utility model will be further described with reference to fig. 1-7.

In order to conveniently realize loading and unloading operation of a workpiece to be processed and maintenance of internal equipment of the slicing machine, an opening capable of being communicated with the internal cutting chamber 61 is usually formed in the side wall of the slicing machine, a protective door convenient to open and close is arranged on the opening, and when the equipment fails or does not operate, the internal equipment is conveniently overhauled or maintained through the opening after the protective door is opened; when the slicer normally works, the protective door needs to be tightly closed to prevent the influence of objects in the operation area on the external environment, the door body in the prior art is of a single-layer structure or a door body structure incapable of horizontally moving, so that internal solid or liquid objects are mainly prevented from splashing outwards, but in the working process of the photovoltaic slicer, the magnetic slicing machine, the semiconductor slicing machine and the like, a large amount of heat is generated during cutting line operation, cooling oil or cooling water in contact with the photovoltaic slicing machine can be directly evaporated to form a large amount of oil mist and water mist, after the oil mist and the water mist in the cutting chamber 61 reach a certain amount, the oil mist and the water mist can be diffused to the outside of the slicing machine through door gaps, the comfort level of the surrounding working environment is reduced, and the service life of other equipment is even influenced. Because the single door body structure on the slicing machine in the prior art is difficult to seal water mist and oil mist, the utility model brings trouble to staff, so the sliding lifting double-layer door structure with the self-sealing function is designed on the slicing machine, and the utility model can achieve good sealing effect on the oil mist and the water mist while being convenient to overhaul and maintain.

As shown in fig. 7, the slicing machine specifically disclosed by the application comprises a body 6 and a split double-layer door with a self-sealing function, wherein the double-layer door is arranged on a door frame of the body 6 in a vertical sliding manner, and an operator can open or close the double-layer door through vertical sliding when using the slicing machine, so that the occupied space of the double-layer door is reduced to the greatest extent; and be provided with sealing mechanism between the bilayer door with the slide rail 4 of door frame to and set up self-closing sealing mechanism between bilayer door and the cutting chamber 61 opening of slicer, thereby can avoid the oil mist and the water smoke in the cutting chamber 61 outwards to spread completely, also prevent simultaneously that outside dust etc. from entering into inside the body. The preferred sealing mechanism may be a rubber strip seal, a dense brush seal, or a profile wrap sealing mechanism, which may be designed as a G-like slide rail 4, and a 7-shaped slider 32. In addition, in order to facilitate that the door body is not automatically closed when in use, the active door body 3 of the double-layer door is provided with a positioning bolt 33, so that the double-layer door body can be positioned and fixed under the condition of an open state or a closed state.

As shown in fig. 3-5, the split double-layer door with self-sealing function used in the technical scheme specifically comprises a driven door body 2 and a driving door body 3, wherein the driven door body 2 and the driving door body 3 are connected through a connecting device with a transverse movement function, and at least two groups of connecting devices are arranged between the driving door body and the driven door body, so that the technical effect of automatic compression sealing is realized through transverse movement. In this embodiment, the connecting device may be a traction cylinder connected with the driven door body and the driving door body respectively, and the traction cylinder only plays a role in connection in the ascending or descending process of the double-layer door, and after the door body reaches a predetermined position, the traction cylinder is started to work so as to achieve the technical effect that the driven door body moves transversely relative to the driving door body, thereby achieving the self-sealing effect. In another embodiment of the connecting device between double-layer doors in the technical scheme, a plurality of connecting devices 1 are horizontally arranged between the driven door body 2 and the driving door body 3, and all the connecting devices 1 are mutually parallel, so that the driven door body 2 can conveniently vertically displace in the longitudinal direction under the action of self gravity and cannot deflect; the inside of the driven door body 2 is provided with a sealing device, the sealing device is preferably a sealing strip 63 or a sealing gasket, when the double-layer door is closed, the driven door body 2 and the driving door body 3 can be pressed on the opening of the slicing machine tightly by relative transverse displacement under the action of the connecting device 1, so that the opening is completely sealed, gas, liquid and solid in the cutting chamber 61 are prevented from diffusing to the outside, the sealing strip 63 or the sealing gasket is arranged around the opening of the slicing machine according to one embodiment of the sealing device, the driven door body 2 can be not arranged or arranged at the same time, the service life of the sealing gasket can be prolonged by design, and the dislocation friction loss of the sealing gasket is reduced as small as possible due to the fact that the driven door body 2 moves during operation.

The connecting device 1 specifically shown in fig. 1 and 2 includes a connecting piece 14, a first fixing rod 11 and a second fixing rod 12, where the connecting piece 14 is rotatably connected with the first fixing rod 11 and the second fixing rod 12, and preferably 2 or 3 connecting pieces 14 are disposed between the first fixing rod 11 and the second fixing rod 12, so that stability and firmness of the connecting device 1 can be increased, and the connecting piece 14 has a rod-shaped or sheet-shaped structure; in order to increase the rotation effect between the connecting member 14 and the first fixing rod 11 and the second fixing rod 12, a bearing structure may be disposed between the connecting member 14 and the two fixing rods, so that the resistance is smaller during rotation, rotation is easier to be achieved under the action of external force, the preferred connecting member 14 is fixed on the corresponding fixing rod through the positioning shaft sleeve 16, the limiting plate 17 and the limiting screw 18, a through hole is specifically formed in the connecting member 14, the connecting member 14 is sleeved at one end of the fixing rod through the through hole, then is positioned at a preset position of the fixing rod through the positioning shaft sleeve, the limiting plate 17 is placed outside the positioning shaft sleeve, and then is fixed at one end of the fixing rod through the limiting screw. In the embodiment of the present technical solution, the driven door body 2 may be connected with the first fixing rod 11 of the connecting device 1, and the driving door body 3 may be connected with the second fixing rod 12 of the connecting device 1, so that the driven door body 2 and the driving door body 3 may be connected, and when an external force acts on the driving door body 3, the driven door body 2 may be linked to move together. When the driven door body 2 and the driving door body 3 are connected to the first fixing rod 11 and the second fixing rod 12 of the connecting device 1, a bearing connecting mechanism, that is, a fixing bearing 13 is preferably fixed on the door body, and fixing bearings 15 are fixedly arranged on the first fixing rod 11 and the second fixing rod 12, respectively.

The two ends of the connecting piece are respectively connected with the corresponding fixing rods in a rotating way, the two fixing rods can realize relative displacement of the two fixing rods in the horizontal direction, in particular, one of the two fixing rods is taken as a reference object, in an initial state, the two fixing rods are positioned on the same horizontal plane, at the moment, the distance between the two fixing rods in the horizontal direction is reduced, when the active fixing rods move upwards, due to the gravity action of the passive fixing rods and the connecting piece and the friction action of the passive fixing rods contacted with the ground, the upward pulling force of the active fixing rods is decomposed into horizontal force and vertical force by the connecting piece, when the horizontal force is larger than the friction force between the passive fixing rods and the ground, the horizontal force of the passive fixing rods is larger than the friction force between the passive fixing rods contacted with the ground, at the moment, the distance between the two fixing rods in the horizontal direction is reduced, and the distance between the passive fixing rods and the ground is zero, namely, the distance between the passive fixing rods and the active fixing rods in the horizontal direction is 0; in this process, because the rotational design of the connecting piece, the friction force between the connecting piece and the two fixing rods is far smaller than the gravity of the passive fixing rod, so that the rotational friction is negligible when the active fixing rod moves upwards, and the connecting piece can decompose the force to drive the passive fixing rod to move in the direction close to the active fixing rod and in the traction direction just because of the rotation of the connecting piece.

On the sliding connection between the double door and the body 6, one embodiment of the present technical solution is as follows: the left and right sides of double-deck door is provided with slider 32 respectively, be provided with on the door frame with slider 32 assorted slide rail 4, just slider 32 sets up on the initiative door body 3, inject the holistic motion track of double-deck door through initiative door body 3, reach the self-closing control to driven door body 2 when increasing double-deck door stability, preferred slider 32 is connected with initiative door body 3 through linking the panel beating, and lie in between driven door body 2 and the initiative door body 3 on the horizontal position, the purpose of design linking panel beating is in order to dodge the lateral wall of cutter body, the initiative door body is parallel and level with the outer lateral wall of cutter body when making double-deck door close, the aesthetic feeling of increase equipment. In addition, this technical scheme is in order to prevent the inside liquid outflow of slicer the bottom of door frame is provided with boss 62, just boss 62 with be provided with sealing mechanism between the initiative door body 3 bottom, can prevent inside liquid outflow when opening the in-process of overhauling, also can prevent inside liquid exudation when closing equally.

In the technical scheme, the double-layer door power mechanism can be an intelligent mechanical control mechanism or can be manually controlled to be opened or closed, and in order to facilitate the control of the double-layer door, a tension mechanism is arranged on the active door body 3, the tension mechanism can be a traction hook 31 or/and a handle 34, the tension mechanism can be directly manually controlled by an operator, and a servo motor or a push-pull cylinder can be connected to the corresponding tension mechanism, so that the intelligent control is conveniently realized; in order to facilitate the installation, maintenance and the maintenance of the internal connection mechanism of the double-layer door, an access window is formed in the driven door body 2, a detachable access door plate 21 is fixed on the access window through screws, and the door body of the double-layer door is preferably made of sheet metal materials.

In order to ensure the safe starting of equipment, the cutting machine is prevented from being started in a state that the double-layer door is not completely sealed, the technical scheme is characterized in that a sealing detection module and an information feedback module which are electrically connected with each other are further arranged, the sealing detection module can detect whether the double-layer door reaches a sealing state or not, and the information feedback module receives an electric signal transmitted by the sealing detection module and feeds back a signal of whether the working equipment can be started or not to a control unit of the body. Through the design, whether the double-layer door reaches a sealing state can be detected, so that the work of the cutting machine is controlled, and if the sealing state is not reached, the cutting machine cannot start to work. The seal detection module comprises a detection sensor and an in-place device 22 arranged on the double door, wherein the detection sensor is arranged at a preset position, preferably at the top of the cutting chamber 61, and when the in-place device reaches the detected position, the double door is proved to be in a completely closed state. In this technical scheme, the in-place device 22 is provided with a barb piece far away from one side of the driving door body 3, a detection unit for sensing the barb piece is mounted on the slicing machine, when the driven door body 2 is completely sealed, the barb piece can touch the detection unit, the detection unit can be, but is not limited to, a laser sensor, a photosensitive sensor and the like, after the detection unit detects that the barb piece reaches a preset position, the driving door body 3 is proved to realize the sealing of the opening of the slicing machine, at this time, the cutting device and the like in the cutting chamber 61 can normally start to work, otherwise, the cutting device cannot be started. The specific piece of colluding includes supporting part, linking portion and induction part, induction part passes through linking portion with the supporting part is connected, supporting part with driven door 2 is connected, just induction part not with driven door 2 is on same vertical plane, avoids the interference when driven door 2 up-and-down motion, makes the induction part be detected alone through linking portion, and the testing result is more accurate.

On the basis of the above-mentioned embodiment, as shown in fig. 4 and 5, the present application further designs a power assisting mechanism, where the power assisting mechanism is disposed on the active door body 3 and can be connected with the active door body 3 through a traction hook 31, and the power assisting mechanism is used to assist the double-layer door to open or close, so that the resistance of the double-layer door when sliding up and down can be reduced, the operation smoothness can be increased, and the power assisting device can be a traction cylinder or a counterweight device. When designing into counter weight device, specifically include balancing weight 51, assembly pulley and haulage rope 53, balancing weight 51 can walk around the assembly pulley through haulage rope 53 and be connected with initiative door body 3, and the haulage rope directly sets up on the haulage couple 31 of initiative door body 3, has set up the frame of stepping down between haulage couple and initiative door body 3 in order to make things convenient for the alignment of initiative door body 3 and cutting machine outer wall. The weight of the balancing weight 51 is matched with the weight of the double-layer door body to balance the gravity of the double-layer door, and the pulley block is fixed on the body 6 of the slicing machine and comprises at least one group of fixed pulley 54 brackets 52 and fixed pulleys 54 which are symmetrically arranged on the upper part of the double-layer door.

As shown in fig. 6 a-E, which is a schematic diagram of the whole motion process of the double door on the slicer in the present technical solution, starting from the initial state that the double door in the a is completely opened, at this time, under the action of self gravity of the driven door body 2, the first fixing rod 11 is driven to descend, at this time, the connecting piece 14 is inclined, so that the height of the driven door body 2 is lower than that of the driving door body 3; in the diagram B, as the driving door body 3 slowly descends under the action of external force, the bottom end of the driven door body 2 is firstly contacted with the bottom surface, at the moment, the driving door body 3 continuously descends, the connecting piece 14 gradually changes from inclination to horizontal, and as the driving door body 3 is fixed in the horizontal direction, the driven door body 2 is pushed to horizontally move under the action of the connecting piece 14, so that the driven door body 2 is tightly pressed on an opening of a slicing machine, when the state in the diagram C is reached, the driven door body 2 has the best sealing effect, at the moment, the bottom end of the driving door body 3 is contacted with the boss 62, the driving door body 3 is tightly pressed on the boss 62 by setting the position of the designed positioning bolt 33, the sealing effect is achieved, and meanwhile, the double-layer door is in a completely closed state; as shown in fig. D, when the double door is opened, the driving door body 3 is driven to rise under the action of external force, and the second fixing rod 12 is driven to rise at the same time, the connecting piece 14 is pulled to be in an inclined state from the horizontal direction by the second fixing rod 12, the driven door body 2 is moved to the horizontal direction far away from the opening of the slicer in the process of inclining the connecting piece 14 (at this time, the driven door body 2 does not displace in the vertical direction), when the driven door body 2 is completely separated from the opening of the slicer, the connecting piece 14 reaches the maximum inclination angle, and then the driven door body 2 starts to displace in the vertical direction along with the continuous rising of the driving door body 3 until the double door is completely opened as shown in fig. E. Thus, the whole opening and closing process is completed, and due to the assistance of the counterweight device, an operator can realize the opening and closing only by slightly pulling down or up the handle 34 on the driving door body 3 in the whole process, so that the operation is smooth.

While the utility model has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the utility model. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict. The present utility model is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.

Claims (21)

1. The double-layer door is characterized by comprising a driven door body and a driving door body which are arranged in parallel, wherein a connecting device is arranged between the driving door body and the driven door body and used for enabling the driven door body to realize displacement in a preset direction under the driving of the driving door body.

2. The double door of claim 1, wherein the connection means comprises: the door comprises a connecting piece, a first fixing rod and a second fixing rod, wherein the driven door body is connected with the first fixing rod, the driving door body is connected with the second fixing rod, and the connecting piece is respectively connected with the first fixing rod and the second fixing rod in a rotating mode so that the first fixing rod and the second fixing rod generate relative displacement in a preset direction, and then the driven door body is driven to generate relative displacement relative to the driving door body.

3. The double door of claim 2, wherein at least one of the connectors is disposed between the first and second securing bars; the connecting piece is connected with the first fixing rod and the second fixing rod through bearings respectively.

4. A double door according to claim 3, wherein the connector is connected to the corresponding fixing rod sequentially by a positioning sleeve, a limiting plate and a limiting screw.

5. A double-deck door according to claim 3, wherein the first and second fixing bars are further provided with fixing members, respectively, the fixing members including bearing blocks and fixing bearings fixed to the first or second fixing bars.

6. The double door according to claim 1, wherein at least two sets of said connection means are provided between said driving door body and said driven door body.

7. The double door as claimed in claim 6, wherein the connection means is horizontally disposed between the driven door body and the driving door body, and all the connection means are parallel to each other; and a tension mechanism is arranged on the driving door body.

8. The double door of claim 7, wherein the pulling mechanism is a pulling hook or/and a pull handle.

9. The double door of claim 1, wherein the slave door body has an access window disposed thereon and the access window has a removable access panel disposed thereon.

10. A microtome comprising a body and a double door as claimed in any one of claims 1 to 9.

11. The slicer of claim 10, wherein the double door is slidably disposed up and down on a door frame of the body; sealing mechanisms are respectively arranged between the double-layer door and the body.

12. The slicer of claim 11, wherein the double door is provided with a slide, and the door frame is provided with a slide rail that mates with the slide.

13. The slicer of claim 12, wherein the slider is disposed on the active gate and a sealing mechanism is disposed between the slider and the slide rail.

14. The slicer of claim 11, wherein a boss is provided at a bottom of the door frame and a sealing mechanism is provided between the boss and the bottom of the active door body.

15. The slicer of claim 11, wherein a positioning pin is provided on the active door body of the double door, and a positioning hole is provided on the body to match the positioning pin.

16. The slicer of claim 11, further comprising a seal detection module and an information feedback module electrically connected to each other, the seal detection module configured to detect whether the double door reaches a sealed condition, the information feedback module configured to receive an electrical signal transmitted by the seal detection module and to feedback a signal to a control unit of the body whether to activate a working device.

17. The slicer of claim 16, wherein the seal detection module includes a detection sensor and an in-place device disposed on the double door.

18. The slicer of claim 17, wherein the in-place device is disposed on top of the driven gate.

19. The slicer of claim 18, wherein the in-place device comprises a support portion, an engagement portion, and a sensing portion, the sensing portion being coupled to the support portion via the engagement portion, the support portion being coupled to the slave gate, and the sensing portion not being in a same vertical plane as the slave gate.

20. The slicer of any one of claims 10-19, further comprising a power assist mechanism disposed on the active door body, the power assist mechanism configured to reduce resistance to opening or closing of the double door.

21. The slicer of claim 20, wherein the power assist mechanism is a counterweight device, the counterweight device comprises a counterweight block, a pulley block and a traction rope, the traction rope is connected with the active door body through a traction hook, and a relief frame is arranged between the traction hook and the active door body.

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