CN112826972A

CN112826972A - Translation formula sterilizer self sealss door

Info

Publication number: CN112826972A
Application number: CN202110109274.4A
Authority: CN
Inventors: 牟春兰
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-01-27
Filing date: 2021-01-27
Publication date: 2021-05-25

Abstract

A translation sterilizer self-sealing door relates to the field of disinfection and sterilization equipment in medical instruments and comprises a door frame and a sealing door plate, wherein a guide chute is arranged on the front side of the door frame, the sealing door plate can slide up and down in the guide chute, and a door plate driving device is arranged; the front side of the doorframe is provided with an annular self-sealing adhesive tape and a compressible positioning piece; the upper side of the sealing door plate is provided with a front sealing tooth with a first prepressing inclined plane, the door frame is provided with a limiting chute, a moving slide bar is arranged in the limiting chute, and the moving slide bar is provided with a pressing sealing tooth which is matched with the front sealing tooth and is provided with a second prepressing inclined plane; a sealing pull plate is arranged on the lower side of the sealing door plate, rear sealing teeth with a third prepressing inclined plane are arranged on the sealing pull plate on the rear side of the door frame, an extrusion slide bar is arranged between the rear sealing teeth and the door frame, and extrusion sealing teeth with a fourth prepressing inclined plane are arranged on the extrusion slide bar; a moving slide bar and an extrusion slide bar driving device are arranged. The invention has the advantages of simple structure, low manufacturing cost, safe and reliable sealing, long service life and the like.

Description

Translation formula sterilizer self sealss door

Technical Field

The invention relates to the field of disinfection and sterilization equipment in medical instruments, in particular to a translation type sterilizer self-sealing door which is simple in structure, low in manufacturing cost, safe and reliable in sealing and long in service life.

Background

It is known that medical sterilization equipment is a pressure vessel and reliable sealing is a key feature of sterilizers. The sealing door of the translational sterilizer is widely used because of its advantages of compact structure, small space requirement, etc. The existing translational sterilizer sealing door adopts a door sealing mode of external force moving sealing slip type sealing; the structure of the existing translational sterilizer sealing door is as follows: be equipped with square door frame on the sterilizer cavity, be equipped with the relative direction spout that sets up on the anterior left and right sides of square door frame, sealing door board can be in it about or the horizontal slip, with sterilizer confined setting in the direction spout, be equipped with the annular direction spout around door frame a week on the square door frame front side in the direction spout, be equipped with in the direction spout and slide around, wholly be the joint strip of rectangle, be equipped with the air compression device and the evacuating device with the direction spout intercommunication of joint strip rear side. Before the sealing door plate reaches the door locking position, the sealing rubber strip is retracted in the guide sliding groove of the door frame; when the sealing door plate reaches the door locking position, the air compression device works, compressed air is introduced into the bottom (rear side) of the sealing rubber strip through a necessary control valve system, and the pressure of the compressed air pushes the sealing rubber strip against the sealing door plate to form a seal. After the work is finished, the sealing rubber strip is pumped back to the guide sliding groove by the vacuumizing device, and the sealing door can be opened.

The existing translation sterilizer sealing door has the defects that: 1) sealing can be realized only by a special compressed air system and a special vacuum pumping system; the cost is high, the potential safety hazard that the sealing is unreliable exists, and the field of used products is limited. 2) The sealing rubber strip moves repeatedly in the guide sliding groove, the rubber strip is subjected to severe friction and mechanical damage, the service life of the sealing rubber strip is short, the frequency of replacing the rubber strip is high, and the use cost is high. 3) The requirement on the manufacturing precision of the sealing groove is high, and the manufacturing cost is high.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides the self-sealing door of the translation type sterilizer, which has the advantages of simple structure, low manufacturing cost, safe and reliable sealing, long service life of a sealing rubber strip and low use cost.

The technical scheme adopted by the invention for solving the defects of the prior art is as follows:

a translational sterilizer self-sealing door comprises a door frame and a sealing door plate, wherein the door frame is arranged on a sterilizer cavity, two parallel sides of the front side of the door frame are respectively provided with a guide chute with opposite notches, the sealing door plate can slide in the guide chute to seal or open a sterilizer, and the translational sterilizer self-sealing door is provided with a door plate driving device for driving the sealing door plate to slide in the guide chute; the door frame is characterized in that the front side of the door frame is provided with an annular self-sealing rubber strip and a compressible positioning piece; a front sealing tooth is arranged on one side of the sealing door plate, which is perpendicular to the guide chute, and an inclined first pre-pressing inclined plane is arranged on the front side surface of the front sealing tooth; a limit sliding groove is arranged on the door frame on the same side as the front sealing tooth, a movable sliding strip capable of sliding in the limit sliding groove (in the direction vertical to the sliding direction of the sealing door panel) is arranged in the limit sliding groove, a pressing sealing tooth matched with the front sealing tooth is arranged on the movable sliding strip on the front side of the door frame, and an inclined second pre-pressing inclined plane matched with the first pre-pressing inclined plane is arranged on the rear side face of the pressing sealing tooth; a sealing pulling plate which extends backwards to the rear side of the door frame is arranged on the other side (the side and the other side of the sealing door plate which are vertical to the guide sliding chute) of the sealing door plate, a rear sealing tooth (opposite to the rear side surface of the door frame) is arranged on the sealing pulling plate on the rear side of the door frame, an inclined third pre-pressing inclined surface is arranged on the front side surface of the rear sealing tooth, an extrusion sliding strip which can slide left and right is arranged between the rear sealing tooth and the rear side surface of the door frame, an extrusion sealing tooth (protruding backwards) which is matched with the rear sealing tooth is arranged on the rear side surface of the extrusion sliding strip, and an inclined fourth pre-pressing inclined surface which is matched with the third pre-pressing inclined surface is arranged; and a driving device for driving the moving slide bar and the extrusion slide bar to slide (along the direction vertical to the sliding direction of the sealing door panel).

The compressible positioning pieces are uniformly distributed on the front side of the doorframe, and the compressible positioning pieces have the following structures: the front side of the door frame is provided with a compression chute, a pushing slide block capable of sliding back and forth is arranged in the compression chute, and a pushing pressure spring is arranged between the pushing slide block and the compression chute. Two ends of the ejection pressure spring are respectively connected with the bottom wall of the compression chute and the rear end of the ejection sliding block. When sealing door panel slides to ejection slider front side, ejection slider, compressible location original paper can produce forward thrust to sealing door panel, prevents that sealing door panel uncontrolled slope backward, extrusion annular from sealing the adhesive tape. When the sealing door plate is forced to move backwards (axially), the ejection sliding block is pressed into the compression sliding groove. The compressible positioning piece can also be a component which is provided with a compression mounting groove on the front side of the doorframe and can generate forward thrust to the sealing door plate, such as a Z-shaped elastic sheet or an arched elastic sheet and the like, which are arranged in the compression mounting groove.

The left side and the right side of the front side of the door frame are provided with guide chutes which are arranged oppositely, the sealing door plate can slide up and down in the guide chutes to seal or open the sterilizer, and the door plate driving device for driving the sealing door plate to slide up and down in the guide chutes is arranged; an annular self-sealing rubber strip (surrounding a circle) is arranged on the front side of the door frame; the upper side of the sealing door plate is provided with a front sealing tooth, and the front side surface of the front sealing tooth is provided with an inclined first pre-pressing inclined surface; a limiting sliding groove is formed in the upper side of the door frame, a moving sliding strip capable of sliding left and right in the limiting sliding groove is arranged in the limiting sliding groove, a pressing sealing tooth matched with the front sealing tooth is arranged on the moving sliding strip on the front side of the door frame, and an inclined second pre-pressing inclined surface matched with the first pre-pressing inclined surface is arranged on the rear side surface of the pressing sealing tooth; a sealing pulling plate extending backwards to the rear side of the door frame is arranged on the lower side of the sealing door plate, rear sealing teeth are arranged on the upper side of the sealing pulling plate on the rear side of the door frame, an inclined third pre-pressing inclined surface is arranged on the front side surface of the rear sealing teeth, an extrusion sliding strip capable of sliding left and right is arranged between the rear sealing teeth and the rear side surface of the door frame, extrusion sealing teeth (protruding backwards) matched with the rear sealing teeth are arranged on the rear side surface of the extrusion sliding strip, and an inclined fourth pre-pressing inclined surface matched with the third pre-pressing inclined surface is arranged on the rear side surface of the extrusion sealing teeth; the driving device is used for driving the movable slide bar and the extrusion slide bar to slide left and right. The left and right sides and the upper and lower sides are opposite directions around the sealing door plate, and the structural position relationship can be exchanged.

The annular self-sealing rubber strip comprises an annular connecting part and an annular sealing lip part, wherein the annular sealing lip part is arranged opposite to the annular connecting part, the annular sealing lip part is connected with the outer side of the opposite surface of the annular connecting part, and the inner side of the annular sealing lip part opposite to the annular connecting part is a high-pressure sealing side. The annular connecting part is fixedly connected with the front side of the square door frame. In the translation process, the sealing door plate keeps a proper (usually 3-10mm) gap with the annular sealing lip under the action of the compressible positioning piece, so that the contact friction between the sealing door plate and the self-sealing rubber strip is avoided. When the sealing door plate moves in place, the moving slide bar and the extruding slide bar move, and the sealing door plate moves axially by matching the pre-pressing inclined planes on the moving slide bar and the extruding slide bar with the corresponding pre-pressing inclined planes on the sealing door plate, so that the self-sealing rubber strips are compressed. When the sterilizer works, the high-pressure steam in the chamber enables the lip edge of the sealing rubber strip to be tightly attached to the sealing door plate, thereby generating reliable sealing effect.

The cross section of the annular connecting part is rectangular, the cross section of the annular sealing lip part is wedge-shaped, an annular mounting groove matched with the annular connecting part is arranged on the front side of the square door frame, and the annular connecting part is mounted in the annular mounting groove.

The two angle irons and the front side surface of the door frame respectively surround two guide chutes with opposite openings; the sealed door plant upside on be equipped with 2 at least preceding sealed teeth, the structure of spacing spout be: the periphery of the square door frame protrudes out of the sterilizer cavity, a sliding groove seat is arranged on the part of the door frame protruding out of the sterilizer cavity, the sliding groove seat and the door frame (the rear side surface and the outer side surface) are matched to enclose a limiting sliding groove with an L-shaped cross section, one arm of the L-shaped cross section of the limiting sliding groove is positioned on the rear side of the door frame, and the other arm of the L-shaped cross section of the limiting sliding groove is positioned on the outer side of the door; the movable sliding strip is in a sliding strip shape with an L-shaped cross section and matched with the limiting sliding groove.

The driving device for driving the moving slide bar and the extrusion slide bar to slide is characterized in that a moving slide bar air cylinder and an extrusion slide bar air cylinder are respectively arranged at one end of the moving slide bar and one end of the extrusion slide bar, piston rods of the moving slide bar air cylinder and the extrusion slide bar air cylinder are respectively hinged with the end parts of the moving slide bar and the extrusion slide bar, and the moving slide bar air cylinder and the extrusion slide bar air cylinder push the moving slide bar and the extrusion slide bar to move. The cylinder can also be a linear motion machine such as an oil cylinder or an electric push rod.

The door plate driving device is provided with a door plate driving power source, and the output end of the door plate driving power source is hinged with the middle part of the door plate through a hinge seat. The door plate driving power source can be one of an air cylinder, an oil cylinder or an electric push rod, and can also be other linear motion machines.

The rear side surface of the door frame is provided with an installation chute, the extrusion sliding strip can slide left and right in the installation chute, and a sterilizer cavity at the rear side of the extrusion sliding strip is provided with a sliding strip limiting baffle plate positioned above the rear sealing teeth. The sliding strip limiting baffle blocks the extrusion sliding strip in the installation sliding groove, and the extrusion sliding strip can only slide left and right and cannot move back and forth; the operation stability is improved.

The invention further improves, the said sealed door plant is square, the upper side of said sealed door plant has 3-10 front seal teeth that arrange in left and right direction evenly, the left part of front side of front seal tooth has the first prepressing inclined plane that inclines forward from left to right, the right part of front side of front seal tooth is the laminating plane (without front and back inclination), the upper side of moving slide bar of front side of said door frame has 3-10 compressing seal teeth that arrange in left and right direction and cooperate with front seal tooth evenly, the right part of rear side of compressing seal tooth has the second prepressing inclined plane that cooperates with first prepressing inclined plane, incline backward from right to left, the left part of rear side of compressing seal tooth is the laminating plane (without front and back inclination); 3-10 rear sealing teeth which are arranged in the left-right direction are uniformly distributed on the upper side of the sealing pulling plate, a third prepressing inclined plane which is forwards inclined from right to left is arranged at the right part of the front side surface of each rear sealing tooth, a joint plane (without front and back inclination) is arranged at the left part of the front side surface of each rear sealing tooth, 3-10 extrusion sealing teeth which are convexly arranged in the left-right direction are uniformly distributed on the rear side surface of the extrusion sliding strip, and a fourth prepressing inclined plane which is matched with the third prepressing inclined plane and backwards inclined from left to right is arranged at the left part of the rear side surface of each extrusion sealing tooth; the right part of the rear side surface of the extrusion sealing tooth is a joint plane (without front and back inclination); the drive remove draw runner and the drive arrangement of the horizontal slip of extrusion draw runner include power supply, articulated seat and transmission bridge plate, articulated seat fixed set up on square door frame right side, transmission bridge plate middle part articulated with articulated seat, both ends can be around articulated seat (low-angle) horizontal hunting, the both ends of transmission bridge plate are articulated with the right-hand member that removes the draw runner and the extrusion draw runner respectively, the power supply link to each other with the one end of transmission bridge plate, be used for driving transmission bridge plate horizontal hunting. The two ends of the transmission bridge plate are respectively provided with a long strip-shaped hinged sliding hole which is arranged in the vertical direction, the right end parts of the movable sliding strip and the extrusion sliding strip are respectively connected with the two ends of the transmission bridge plate through hinged pin shafts which can slide up and down in the long strip-shaped hinged sliding holes, and the movable sliding strip and the extrusion sliding strip are driven to move left and right when the two ends of the transmission bridge plate move left and right.

When the invention works, the door plate driving device pushes the sealing door plate to slide to the front side of the door frame on the guide sliding chute to block the entrance and exit of the sterilizer cavity, a gap of 0-20mm, preferably 3-10mm is formed between the annular sealing lip edge part and the sealing door plate, the driving device works to drive the movable sliding strip and the extrusion sliding strip to slide along the direction vertical to the sliding direction of the sealing door plate, the second prepressing inclined plane of the compaction sealing tooth on the movable sliding strip is matched with the first prepressing inclined plane of the front sealing tooth to press the sealing door plate backwards, simultaneously, the fourth prepressing inclined plane of the extrusion sealing tooth on the extrusion sliding strip is matched with the third prepressing inclined plane of the back sealing tooth, the sealing door plate is pulled to move backwards (axially move) by the sealing pull plate, the backward translation (axial movement) of the sealing door plate is completed by the left and right movement of the movable sliding strip and the extrusion sliding strip, and the sealing lip edge part of, the sealing lip edge part of the annular self-sealing rubber strip is pre-compressed, when the pressure in the cavity of the sterilizer rises, high-pressure gas can tightly press the sealing lip edge part of the annular self-sealing rubber strip on the sealing door plate, and the sealing effect is better when the pressure is higher. When the sealing door plate needs to be opened, the driving device works and drives the moving sliding strip and the extruding sliding strip to slide in a reverse mode, the pressing sealing teeth on the moving sliding strip are separated from the front sealing teeth in a left-right staggered mode, and the extruding sealing teeth on the extruding sliding strip are separated from the rear sealing teeth in a left-right staggered mode; under the effect of the compressible positioning element, the sealing door plate leaves the annular self-sealing rubber strip surface, no relative pressure exists between the sealing door plate and the annular self-sealing rubber strip, and the door plate driving device can drive the sealing door plate to slide on the guide sliding groove and open the inlet and outlet of the sterilizer cavity. The invention adopts a simple mechanical structure to realize the sealing function of the translational sealing door plate of the medical sterilizer, does not need an air compression system and a vacuum pumping system, has low manufacturing cost, eliminates a plurality of fault hidden dangers, has reliable sealing and no potential safety hazard, and is suitable for various sterilizers; the annular self-sealing rubber strip has the advantages of no ineffective relative sliding in the sealing process, no severe friction and mechanical damage, long service life, low application cost, low requirement on the manufacturing precision of the groove for mounting the annular self-sealing rubber strip on the door frame, and further reduced cost.

Drawings

FIG. 1 is a schematic view of the sealing door panel of the present invention sliding to the front side of the door frame without sealing.

Fig. 2 is a sectional view a-a of fig. 1.

Fig. 3 is a sectional view B-B of fig. 1.

Fig. 4 is a cross-sectional view C-C of fig. 1.

Fig. 5 is a partial enlarged view of fig. 3 at G.

Fig. 6 is a schematic structural view of the sealing door panel of the present invention positioned on the front side of the door frame during sealing.

Fig. 7 is a cross-sectional view taken along line D-D of fig. 6.

Fig. 8 is a cross-sectional view E-E of fig. 6.

Fig. 9 is a sectional view F-F of fig. 6.

Fig. 10 is a partial enlarged view of fig. 8 at H.

Detailed Description

The translational sterilizer self-sealing door shown in fig. 1-10 comprises a square door frame 13 and a square sealing door plate 4, wherein the door frame and the sealing door plate can also be in a hexagonal or octagonal structure. The door frame 13 is arranged on the periphery of the entrance and exit of the sterilizer cavity 12, the left side and the right side of the front side of the door frame 13 are respectively provided with a guide chute with opposite notches, and the sealing door plate 4 can slide up and down in the guide chute to close or open the entrance and exit of the sterilizer cavity; as can be seen from fig. 2, 4, 7 and 9, the guiding chutes are two guiding chutes with L-shaped cross sections, which are respectively arranged on the left and right sides of the door frame, and the two L-shaped angle bars 9 and the front side surfaces of the left and right door frames 13 respectively enclose into two guiding chutes with opposite openings; the left and right sides of the sealing door plate 4 are positioned in the two guide sliding grooves respectively. The door plate driving device is used for driving the sealing door plate to slide up and down in the guide sliding chute; as shown in fig. 1 and 6, the door driving device is provided with a door driving power source 11, and an output end of the door driving power source 11 is hinged to the middle of the door 4 through a hinge base. The door panel driving power source 11 may be one of an air cylinder, an oil cylinder or an electric push rod, or may be other linear motion machines. The front side of the door frame 13 is provided with an annular self-sealing rubber strip and a compressible positioning piece which surround the periphery of the inlet and the outlet of the sterilizer cavity; as can be seen from fig. 5 and 10, the annular self-sealing rubber strip includes an annular connecting portion 23 and an annular sealing lip portion 16, the annular sealing lip portion 16 and the annular connecting portion 23 are disposed in front and back opposition, the annular sealing lip portion 23 is connected to an outer side of an opposing surface of the annular connecting portion 16, that is, the annular sealing lip portion 23 is inclined inward from back to front, a rear side surface thereof is fixedly connected to an outer side of a front side surface of the annular connecting portion 16, and an inner side of the annular sealing lip portion 23 opposing the annular connecting portion 16 is a high-pressure sealing side; compressible setting element equipartition on the door frame front side, the structure of compressible setting element is: the front side of the door frame is provided with a compression sliding chute, a pushing sliding block 26 capable of sliding back and forth is arranged in the compression sliding chute, and a pushing pressure spring is arranged between the pushing sliding block 26 and the compression sliding chute. The front end of the ejection slide block 26 is semicircular, and two ends of the ejection pressure spring are respectively connected with the bottom wall of the compression chute and the rear end of the ejection slide block. When the sealing door plate slides to the front side of the ejection sliding block 26, the ejection sliding block 26 can generate forward thrust on the sealing door plate, so that the sealing door plate is prevented from being uncontrollably inclined backwards and extruding the annular self-sealing rubber strip. When the sealing door plate is stressed to move backwards, the ejection sliding block is pressed into the compression sliding groove. 4 upside equipartitions of sealing door plant have 5 preceding sealing teeth 3 that the left-right direction was arranged, and 3 leading flank left parts of preceding sealing teeth are equipped with the first pre-compaction inclined plane 15 that slopes forward from left to right, and the laminating plane of 3 leading flank right parts of preceding sealing teeth for slope around not having is equipped with spacing spout on the 13 upside of door frame, is equipped with in the spacing spout and can be in its gliding removal draw runner 5 of left right, can see from figure 3, 8, the structure of spacing spout be: the periphery of a square door frame 13 protrudes out of a sterilizer cavity 12, a sliding groove seat 1 is arranged on the part of the door frame protruding out of the sterilizer cavity, the sliding groove seat 1 is matched with the rear side surface and the outer side surface of the door frame 13 to enclose a limiting sliding groove with an L-shaped cross section, one arm of the L-shaped cross section of the limiting sliding groove is positioned at the rear side of the door frame, and the other arm of the L-shaped cross section of the limiting sliding groove is positioned at the outer side of; the movable sliding strip 5 is in a sliding strip shape with an L-shaped cross section and matched with the limiting sliding groove. 5 upper sides of the movable sliding strip 5 at the front side of the door frame 13 are uniformly provided with 5 pressing sealing teeth 2 which are arranged in the left-right direction and matched with the front sealing teeth 3, the right part of the rear side surface of each pressing sealing tooth 2 is provided with a second pressing inclined surface 14 which is matched with the first pressing inclined surface 15 and inclines from right to left, and the left part of the rear side surface of each pressing sealing tooth 2 is a laminating plane without front inclination and rear inclination. A sealing pulling plate 17 extending backwards to the rear side of a door frame 13 is arranged on the lower side of a sealing

door plate

4, 5 rear sealing teeth 18 arranged in the left-right direction are uniformly distributed on the upper side of the sealing pulling plate 17 at the rear side of the door frame, a third pre-pressing inclined plane 21 inclining forwards from right to left is arranged on the right part of the front side of each rear sealing tooth 18, the left part of the front side of each rear sealing tooth 18 is a joint plane without front and back inclination, an extrusion sliding strip 10 capable of sliding left and right is arranged between each rear sealing tooth 18 and the rear side of the

door frame

13, 5 extrusion sealing teeth 19 protruding backwards and matched with the rear sealing teeth 18 and arranged in the left-right direction are uniformly distributed on the rear side of the extrusion sliding strip 10, and a fourth pre-pressing inclined plane 20 matched with the third pre-pressing inclined plane 21 and inclining backwards from left to right is arranged on; the right part of the rear side surface of the extrusion seal tooth 19 is a joint plane without front and rear inclination. The driving device is used for driving the movable sliding strip and the extrusion sliding strip to slide left and right; as shown in fig. 1 and 6, the driving device for driving the sliding strip and the extrusion sliding strip to slide left and right comprises a power source 7, an articulated seat 8 and a transmission bridge plate 6, the articulated seat 8 is fixedly arranged on the right side of an L-shaped angle iron 9 on the right side of a square door frame 13, the middle part of the transmission bridge plate 6 is articulated with the articulated seat 8, two ends of the transmission bridge plate 6 can swing left and right within the range of 60 degrees around the articulated seat 6, two ends of the transmission bridge plate 6 are respectively articulated with the right ends of the movable sliding strip 5 and the extrusion sliding strip 10, and the output end of the power source 7 is connected with one end of the transmission bridge plate 6 and is used for driving the transmission bridge plate to swing left and right. The power source 7 may be any linear motion machine such as an air cylinder, an oil cylinder, or an electric push rod.

The invention is further improved, the two ends of the transmission bridge plate are respectively provided with a long strip hinged sliding hole which is arranged in the vertical direction, the right end parts of the movable sliding strip and the extrusion sliding strip are respectively connected with the two ends of the transmission bridge plate through hinged pin shafts which can slide up and down in the long strip hinged sliding holes, and the movable sliding strip and the extrusion sliding strip are driven to move left and right when the two ends of the transmission bridge plate move left and right. The annular cross section of the annular connecting part of the annular self-sealing rubber strip is rectangular, the annular cross section of the sealing lip part is wedge-shaped and inclines forwards from outside to inside, the front side of the square door frame is provided with an annular mounting groove matched with the annular connecting part, and the annular connecting part is mounted in the annular mounting groove. The rear side surface of the door frame is provided with an installation sliding groove, the extrusion sliding strip can slide left and right in the installation sliding groove, and the sterilizer cavity 12 at the rear side of the extrusion sliding strip is provided with a sliding strip limit baffle 22 positioned above the rear sealing teeth 18. The sliding strip limiting baffle 22 blocks the extrusion sliding strip in the installation sliding groove, and the extrusion sliding strip can only slide left and right and cannot move back and forth; the operation stability is improved.

When the sterilizer door sealing device works, the door plate driving device pushes the sealing door plate to upwards slide to the front side of the door frame on the guide sliding chute to block the entrance and the exit of the sterilizer cavity, a gap of 0-20mm, preferably 3-10mm is formed between the annular sealing lip part and the sealing door plate, and the up-and-down (translational) movement of the sealing door plate can not generate friction and shearing action on the sealing ring. The power source 7 drags the moving slide bar to the right side to drive the extruding slide bar to move left, the second prepressing inclined plane of the pressing sealing tooth on the moving slide bar is matched with the first prepressing inclined plane of the front sealing tooth to press the sealing door panel backwards, the fourth prepressing inclined plane of the extruding sealing tooth on the extruding slide bar is matched with the third prepressing inclined plane of the rear sealing tooth to pull the sealing door panel to move backwards (axially move) through the sealing pulling plate, the backward translation (axial motion) of the sealing door plate is completed by the left and right motion of the movable sliding strip and the extrusion sliding strip, and the sealing door plate is pressed against the sealing lip part of the annular self-sealing rubber strip, the pre-compression function is performed on the sealing lip edge part of the annular self-sealing rubber strip, when the pressure in the sterilizer cavity is increased, the high-pressure gas pressurizes the high-pressure sealing side of the sealing lip edge part, the sealing lip edge part of the annular self-sealing rubber strip is tightly pressed on the sealing door plate, and the sealing effect is better when the pressure is higher. When the sealing door plate needs to be opened, the power source 7 works to push the moving sliding strip to the left side and drive the extrusion sliding strip to move rightwards (reversely), the pressing sealing teeth on the moving sliding strip are separated from the front sealing teeth in a left-right staggered manner, and the extrusion sealing teeth on the extrusion sliding strip are separated from the rear sealing teeth in a left-right staggered manner; the sealing door plate leaves the annular self-sealing rubber strip under the action of the compressible positioning piece, no relative pressure exists between the sealing door plate and the annular self-sealing rubber strip, and the door plate driving device can drive the sealing door plate to slide downwards on the guide sliding groove and open the inlet and outlet of the cavity of the sterilizer. The invention adopts a simple mechanical structure to realize the sealing function of the translational sealing door plate of the medical sterilizer, does not need an air compression system and a vacuum pumping system, has low manufacturing cost, eliminates a plurality of fault hidden dangers, has reliable sealing and no potential safety hazard, and is suitable for various sterilizers; the annular self-sealing rubber strip has the advantages of no ineffective relative sliding in the sealing process, no severe friction and mechanical damage, long service life, low application cost, low requirement on the manufacturing precision of the groove for mounting the annular self-sealing rubber strip on the door frame, and further reduced cost.

Claims

1. A translational sterilizer self-sealing door comprises a door frame and a sealing door plate, wherein the door frame is arranged on a sterilizer cavity, two parallel sides of the front side of the door frame are respectively provided with a guide chute with opposite notches, the sealing door plate can slide in the guide chute to seal or open a sterilizer, and the translational sterilizer self-sealing door is provided with a door plate driving device for driving the sealing door plate to slide in the guide chute; the method is characterized in that: the front side of the doorframe is provided with an annular self-sealing adhesive tape and a compressible positioning piece; a front sealing tooth is arranged on one side of the sealing door plate, which is perpendicular to the guide chute, and an inclined first pre-pressing inclined plane is arranged on the front side surface of the front sealing tooth; a limiting sliding groove is formed in the door frame on the same side as the front sealing tooth, a moving sliding strip capable of sliding in the limiting sliding groove is arranged in the limiting sliding groove, a pressing sealing tooth matched with the front sealing tooth is arranged on the moving sliding strip on the front side of the door frame, and an inclined second pre-pressing inclined surface matched with the first pre-pressing inclined surface is arranged on the rear side surface of the pressing sealing tooth; a sealing pull plate which extends backwards to the rear side of the door frame is arranged on the other side, perpendicular to the guide sliding groove, of the sealing door plate, rear sealing teeth are arranged on the sealing pull plate on the rear side of the door frame, an inclined third pre-pressing inclined surface is arranged on the front side surface of the rear sealing teeth, an extrusion sliding strip which can slide left and right is arranged between the rear sealing teeth and the rear side surface of the door frame, extrusion sealing teeth matched with the rear sealing teeth are arranged on the rear side surface of the extrusion sliding strip, and an inclined fourth pre-pressing inclined surface matched with the third pre-pressing inclined surface is arranged on the rear side surface of the; the driving device is used for driving the movable sliding strip and the extrusion sliding strip to slide.

2. The translating sterilizer self-sealing door according to claim 1, wherein: compressible setting element equipartition on the door frame front side, the structure of compressible setting element is: the front side of the door frame is provided with a compression chute, a pushing slide block capable of sliding back and forth is arranged in the compression chute, and a pushing pressure spring is arranged between the pushing slide block and the compression chute.

3. The translating sterilizer self-sealing door according to claim 2, wherein: the left side and the right side of the front side of the door frame are provided with oppositely arranged guide chutes, the sealing door plate can slide up and down in the guide chutes to seal or open the sterilizer, and the door plate driving device for driving the sealing door plate to slide up and down in the guide chutes is arranged; an annular self-sealing adhesive tape is arranged on the front side of the door frame; the upper side of the sealing door plate is provided with a front sealing tooth, and the front side surface of the front sealing tooth is provided with an inclined first pre-pressing inclined surface; a limiting sliding groove is formed in the upper side of the door frame, a moving sliding strip capable of sliding left and right in the limiting sliding groove is arranged in the limiting sliding groove, a pressing sealing tooth matched with the front sealing tooth is arranged on the moving sliding strip on the front side of the door frame, and an inclined second pre-pressing inclined surface matched with the first pre-pressing inclined surface is arranged on the rear side surface of the pressing sealing tooth; a sealing pulling plate extending backwards to the rear side of the door frame is arranged on the lower side of the sealing door plate, rear sealing teeth are arranged on the upper side of the sealing pulling plate on the rear side of the door frame, an inclined third pre-pressing inclined surface is arranged on the front side surface of the rear sealing teeth, an extrusion sliding strip capable of sliding left and right is arranged between the rear sealing teeth and the rear side surface of the door frame, extrusion sealing teeth matched with the rear sealing teeth are arranged on the rear side surface of the extrusion sliding strip, and an inclined fourth pre-pressing inclined surface matched with the third pre-pressing inclined surface is arranged on the rear side surface of the extrusion; the driving device is used for driving the movable slide bar and the extrusion slide bar to slide left and right.

4. The translating sterilizer self-sealing door according to claim 1, 2 or 3, wherein: the annular self-sealing rubber strip comprises an annular connecting part and an annular sealing lip edge part, the annular sealing lip edge part is arranged opposite to the annular connecting part, the annular sealing lip edge part is connected with the outer side of the opposite surface of the annular connecting part, and the inner side of the annular sealing lip edge part opposite to the annular connecting part is a high-pressure sealing side.

5. The translating sterilizer self-sealing door according to claim 4, wherein: the cross section of the annular connecting part is rectangular, the cross section of the annular sealing lip part is wedge-shaped, an annular mounting groove matched with the annular connecting part is formed in the front side of the square door frame, and the annular connecting part is mounted in the annular mounting groove.

6. The translating sterilizer self-sealing door according to claim 1, 2 or 3, wherein: the two angle irons and the front side surface of the door frame respectively surround two guide sliding chutes with opposite openings; the sealed door plant upside on be equipped with 2 at least preceding sealed teeth, the structure of spacing spout be: the periphery of the square door frame protrudes out of the sterilizer cavity, a sliding groove seat is arranged on the part of the door frame protruding out of the sterilizer cavity, the sliding groove seat is matched with the rear side surface and the outer side surface of the door frame to enclose a limiting sliding groove with an L-shaped cross section, one arm of the L-shaped cross section of the limiting sliding groove is positioned on the rear side of the door frame, and the other arm of the L-shaped cross section of the limiting sliding groove is positioned on the outer side of; the movable sliding strip is in a sliding strip shape with an L-shaped cross section and matched with the limiting sliding groove.

7. The translating sterilizer self-sealing door according to claim 1, 2 or 3, wherein: the driving device for driving the movable sliding strip and the extrusion sliding strip to slide is characterized in that a movable sliding strip cylinder and an extrusion sliding strip cylinder are respectively arranged at one end of the movable sliding strip and one end of the extrusion sliding strip, piston rods of the movable sliding strip cylinder and the extrusion sliding strip cylinder are respectively hinged with the end parts of the movable sliding strip and the extrusion sliding strip, and the movable sliding strip cylinder and the extrusion sliding strip cylinder push the movable sliding strip and the extrusion sliding strip to move.

8. The translating sterilizer self-sealing door according to claim 7, wherein: the door plate driving device is provided with a door plate driving power source, and the output end of the door plate driving power source is hinged with the middle part of the door plate through a hinged seat.

9. The translating sterilizer self-sealing door according to claim 1, 2 or 3, wherein: the sealing door plate is square, 3-10 front sealing teeth which are arranged in the left-right direction are uniformly distributed on the upper side of the sealing door plate, a first prepressing inclined plane which is forwards inclined from left to right is arranged at the left part of the front side surface of each front sealing tooth, a joint plane is formed at the right part of the front side surface of each front sealing tooth, 3-10 pressing sealing teeth which are matched with the front sealing teeth and are arranged in the left-right direction are uniformly distributed on the upper side of the moving sliding strip at the front side of the door frame, a second prepressing inclined plane which is matched with the first prepressing inclined plane and backwards inclined from right to left is arranged at the right part of the rear side surface of each pressing sealing tooth, and a joint plane is formed; 3-10 rear sealing teeth which are arranged in the left-right direction are uniformly distributed on the upper side of the sealing pulling plate, a third prepressing inclined plane which is forwards inclined from right to left is arranged at the right part of the front side surface of each rear sealing tooth, the left part of the front side surface of each rear sealing tooth is a joint plane, 3-10 extrusion sealing teeth which are arranged in the left-right direction are uniformly distributed on the rear side surface of the extrusion sliding strip, and a fourth prepressing inclined plane which is matched with the third prepressing inclined plane and backwards inclined from left to right is arranged at the left part of the rear side surface of each extrusion sealing tooth; extruding a joint plane on the right part of the rear side surface of the sealing tooth; the drive remove the draw runner and extrude the drive arrangement of the horizontal slip of draw runner include power supply, articulated seat and transmission bridge plate, articulated seat fixed set up on square door frame right side, transmission bridge plate middle part articulated with articulated seat, both ends can be around articulated seat horizontal hunting, the both ends of transmission bridge plate are articulated with the right-hand member that removes the draw runner and extrude the draw runner respectively, the power supply link to each other with the one end of transmission bridge plate, be used for driving transmission bridge plate horizontal hunting.