CN114278188A

CN114278188A - Sterilizer door

Info

Publication number: CN114278188A
Application number: CN202210006310.9A
Authority: CN
Inventors: 王俞庆; 陶晓旺; 黎群华
Original assignee: Maquet Suzhou Co Ltd
Current assignee: Maquet Suzhou Co Ltd
Priority date: 2022-01-05
Filing date: 2022-01-05
Publication date: 2022-04-05
Anticipated expiration: 2042-01-05
Also published as: CN114278188B

Abstract

The invention discloses a sterilizer door which comprises a base, a driving mechanism and a door plate, wherein one end of the driving mechanism is fixedly connected with the base, the other end of the driving mechanism is connected with the door plate, the driving mechanism comprises an electric push rod, a first fixing support, and pulleys and steel wire ropes which are symmetrically arranged relative to the electric push rod, the first fixing support is fixedly connected with the electric push rod and is in sliding connection with the door plate, the pulleys are fixedly arranged on the first fixing support, the steel wire ropes pass around the pulleys, one end of each steel wire rope is connected with the base, and the other end of each steel wire rope is connected with the door plate.

Description

Sterilizer door

Technical Field

The invention relates to the technical field of sterilization equipment, in particular to a sterilizer door.

Background

The sterilizer mainly comprises a sterilization chamber and a sealing door. In operation, sterilizer doors are classified into manual and automatic types. With the development of science and technology, sterilizers have all adopted a semi-automatic or full-automatic door structure.

At present, a vertical lifting door of a large-scale automatic sterilizer mainly adopts a cylinder or a speed reducing motor and a sprocket transmission mechanism as a main scheme. The technical scheme has the following technical defects: firstly, the air cylinder needs additional compressed air as a working medium, which increases the requirement of the installation condition of the sterilizer and also brings about the noise problem of a compressed air system (exhaust of a control valve, operation of an air compressor and the like). Secondly, adopt gear motor and sprocket driven mechanism to make the part increase, the structure is complicated, and the operating efficiency is low and be not convenient for maintain, can not leave lubricating grease among the drive mechanism, brings extra pollution risk for the supply room.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides the sterilizer door which is simple in structure and high in operation efficiency.

The invention is realized by the following technical scheme:

the utility model provides a sterilizer door, includes base, actuating mechanism and door plant, actuating mechanism one end and base fixed connection, the other end and the door plant is connected, actuating mechanism includes electric putter, first fixed bolster and relative the pulley and the wire rope that electric putter symmetry set up, first fixed bolster with electric putter fixed connection and with door plant sliding connection, the pulley is fixed to be set up on the first fixed bolster, wire rope walks around pulley and one end with base connection, the other end and the door plant is connected.

Furthermore, the driving mechanism further comprises a second fixing support which is symmetrically arranged relative to the electric push rod, and the second fixing support is fixedly connected with the base.

Furthermore, the driving mechanism further comprises a third fixing support which is symmetrically arranged relative to the electric push rod, the third fixing support is fixedly connected with the door plate, one end of the steel wire rope is connected with the second fixing support, and the other end of the steel wire rope is fixedly connected with the third fixing support.

Furthermore, the driving mechanism further comprises a lock catch which is sleeved on the steel wire rope and used for locking the steel wire rope.

Furthermore, the sterilizer door still includes stop gear, stop gear and controller down, the input of controller simultaneously with last stop gear and lower stop gear electricity are connected, the output with electric putter electricity is connected.

Further, the upper limiting mechanism comprises a safety plate and a first microswitch, and the safety plate is fixedly connected with the door plate; the first microswitch is fixedly arranged on the door plate, and the first microswitch is electrically connected with the controller and used for detecting the state change of the safety plate.

Further, lower limit mechanism includes locking shell fragment, locking shell fragment one end with second fixed bolster fixed connection, the other end with wire rope butt.

Furthermore, the lower limiting mechanism further comprises a second microswitch, the second microswitch is fixedly arranged on the second fixing support, and the second microswitch is electrically connected with the controller and used for detecting the state change of the anti-loosening elastic sheet.

Furthermore, the anti-loosening elastic sheet is fixedly connected with a shifting lever on the second microswitch.

Furthermore, a sliding rail is arranged on the door plate and is in sliding connection with the first fixing support.

Compared with the prior art, the invention has the advantages that:

1. the up-and-down movement of the door plate is driven by the electric push rod, the traditional cylinder driving is replaced, and the electric push rod driving mode is low in noise and smooth in driving.

2. Through set up first fixed bolster on electric putter, electric putter symmetry is equipped with the pulley relatively, and the pulley is fixed on first fixed bolster, and wire rope walks around behind the pulley one end and base connection, the other end and door plant connection, and when the push rod rose, the functioning speed of door plant was the twice of push rod functioning speed, has simplified equipment structure, and the later maintenance of being convenient for has improved the operating efficiency.

3. Through set up stop gear on the door plant and set up down stop gear on the base, the upper limit is that mechanism and lower stop gear all are connected to electric putter through the controller on, when last stop gear or down any one in the stop gear triggered, electric putter stop work is controlled immediately to the controller, has improved the security of sterilizer door operation.

Drawings

FIG. 1 is a schematic view of the overall structure of a sterilizer door according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view taken along A-A of FIG. 1;

FIG. 3 is a schematic view of a door portion of a sterilizer;

FIG. 4 is an enlarged view of portion A of FIG. 3;

FIG. 5 is an enlarged view of portion B of FIG. 3;

fig. 6 is a circuit control block diagram.

1. A base; 2. a drive mechanism; 20. an electric push rod; 21. a first fixed bracket; 22. a pulley; 23. a wire rope; 24. a second fixed bracket; 25. a third fixed bracket; 26. locking; 3. an upper limit mechanism; 30. a security pane; 31. a first microswitch; 4. a lower limit mechanism; 40. a locking spring plate; 41. a second microswitch; 410. a deflector rod; 5. a door panel; 50. a slide rail; 6. and a controller.

Detailed Description

The following non-limiting detailed description of the present invention is provided in connection with the preferred embodiments and accompanying drawings. In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings. Furthermore, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying a driving importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

As shown in fig. 1 to 6, a sterilizer door according to an embodiment of the present invention includes a base 1, a driving mechanism 2, an upper limiting mechanism 3, a lower limiting mechanism 4, a door panel 5 and a controller 6, wherein one end of the driving mechanism 2 is fixedly connected to the base 1, the other end is connected to the door panel 5, the upper limiting mechanism 3 is fixed to the door panel 5, the lower limiting mechanism 4 is fixed above the base 1, an input end of the controller 6 is electrically connected to the upper limiting mechanism 3 and the lower limiting mechanism 4 at the same time, and an output end is electrically connected to an electric push rod 20. The driving mechanism 2 can drive the door plate 5 to move along the vertical direction, and in the ascending process or the descending process of the door plate 5, once the door plate 5 is triggered to the upper limiting mechanism 3 or the lower limiting mechanism 4, the controller 6 can immediately receive the trigger signal of the upper limiting mechanism 3 or the lower limiting mechanism 4 and control the driving mechanism 2 to stop working, so that the safety of an operator is ensured, and the safety of the operation of the sterilizer door is improved.

Referring to fig. 3, the driving mechanism 2 includes an electric push rod 20, a first fixing bracket 21, a pulley 22, a wire rope 23, a second fixing bracket 24, third fixed bolster 25 and hasp 26, pulley 22, wire rope 23, second fixed bolster 24 and third fixed bolster 25 are the relative electric putter 20 symmetry setting, first fixed bolster 21 and electric putter 20 fixed connection and door plant 5 sliding connection, pulley 22 is fixed to be set up on first fixed bolster 21, second fixed bolster 24 and base 1 fixed connection, third fixed bolster 25 and door plant 5 fixed connection, wire rope 23 walks around pulley 22 and one end and second fixed bolster 24 and is connected and be used for fixing wire rope 23's one end on base 1, the other end and third fixed bolster 25 fixed connection are used for fixing the wire rope 23 other end on door plant 5, hasp 26 cup joints and is used for locking wire rope 23 on wire rope 23.

Specifically, a pair of wire rope 23 symmetry sets up and wire rope 23 one end, fix on door plant 5 through pulley 22 on the first fixed bolster 21, the other end is fixed to the second fixed bolster 24, when electric putter 20 upwards drives, every wire rope 23 only bears half the weight of door plant 5, but every pulley 22 need bear twice wire rope 23's pulling force, transmit to the first fixed bolster 21 of installing pulley 22, bear twice door plant 5's gravity by electric putter 20 finally, electric putter 20 is fixed on base 1, base 1 bears the total weight of whole sterilizer door. When the electric push rod 20 extends upwards, the door panel 5 can move upwards at twice of the extending speed of the electric push rod 20, and the moving distance of the door panel 5 is 2 times of the stroke of the electric push rod 20; when the electric push rod 20 contracts, the door plate 5 moves downwards under the action of self gravity, the difficulty of selecting the electric push rod 20 is reduced due to the characteristic that the speed of the sterilizer door is multiplied by the stroke, so that the sterilizer door can be applied to common push rods with short stroke and low speed, the cost is reduced, and the opening and closing efficiency of the sterilizer door is improved.

Go up stop gear 3 and include safety plate 30 and first micro-gap switch 31, safety plate 30 and door plant 5 fixed connection, first micro-gap switch 31 is fixed to be set up on door plant 5, and first micro-gap switch 31 and controller 6 electricity are connected and are used for detecting the state change of safety plate 30. In order to prevent the door panel 5 from being damaged by extrusion during the lifting process, a floating safety plate 30 is fixedly installed on the door panel 5, a first microswitch 31 is arranged at the lower side of the safety plate 30, and the first microswitch 31 is fixed on the movable door panel 5. When the door panel 5 is blocked by an obstacle in the ascending process, the safety plate 30 is forced to move downwards, the safety plate is driven to move in a certain distance from the door panel 5, the first microswitch 31 is triggered to act, a signal that the door meets the obstacle is sent to the controller 6, the controller 6 controls the electric push rod 20 to be powered off, the electric push rod 20 stops ascending, and the clamping injury is prevented.

The lower limiting mechanism 4 can be arranged at the bottom of any one steel wire rope 23, and the lower limiting mechanisms 4 can be arranged at the lower sides of the two steel wire ropes 23, so that the safety is further improved. Lower stop gear 4 includes locking shell fragment 40 and second micro-gap switch 41, and locking shell fragment 40 one end and second fixed bolster 24 fixed connection, the other end and wire rope 23 butt, second micro-gap switch 41 are fixed to be set up on the second fixed bolster 24, just second micro-gap switch 41 with the state change that is used for detecting locking shell fragment 40, driving lever 410 fixed connection on locking shell fragment 40 and the second micro-gap switch 41 are connected to the controller 6 electricity. In order to prevent the steel wire rope 23 from loosening in the descending process of the door panel 5, the second fixing support 24 at the bottom of the steel wire rope 23 is provided with the anti-loosening elastic sheet 40, under the normal condition, the anti-loosening elastic sheet 40 is pre-deformed and pressed on the steel wire rope 23 in a tightened state, elastic potential energy in the pressing direction is kept, and the anti-loosening elastic sheet 40 can also be replaced by a common spring or a torsion spring to be used as a potential energy storage and release mode. When the door panel 5 encounters an obstacle in the descending process, and the steel wire rope 23 is loosened to a certain degree, the anti-loosening elastic sheet 40 releases potential energy to swing, the driving lever 410 on the second microswitch 41 is driven to move, the second microswitch 41 is triggered to act, the second microswitch 41 sends a loosening signal of the steel wire rope 23 to the controller 6, the controller 6 controls the electric push rod 20 to be powered off, the electric push rod 20 stops descending, only when the obstacle of the door panel 5 descending is eliminated, the tightening state of the steel wire rope 23 is recovered to reset the second microswitch 41, the power supply of the electric push rod 20 is recovered, and therefore various dangerous situations caused by further loosening of the steel wire rope 23 can be avoided.

Be provided with slide rail 50 on door plant 5, slide rail 50 and first fixed bolster 21 sliding connection, slide rail 50 plays supplementary guide effect, improves the gliding smooth degree of electric putter 20, and plays a support guard action to door plant 5, improves the stability of door plant 5 motion.

When the electric push rod 20 extends upwards, the electric push rod 20 drives a stack of pulleys 22 on the first fixing support 21 to move upwards, a pair of steel wire ropes 23 on the pulleys 22 respectively pull bottoms of two ends of the door panel 5 to enable the door panel 5 to move upwards, the pulleys are basically defined, one pulley 22 can ensure the same movement speed and movement distance of the door panel 5 and the electric push rod 20, and if a group of pulleys 22 are arranged in bilateral symmetry, the movement distance and the movement speed of the door panel 5 are twice of those of the electric push rod 20. In this embodiment, a set of symmetrically arranged pulleys 22 is adopted, the door panel 5 can move upwards at twice the extension speed of the electric push rod 20, and the moving distance of the door panel 5 is 2 times the stroke of the electric push rod 20; when the electric push rod 20 contracts, the door plate 5 moves downwards under the action of self gravity, the difficulty of selecting the electric push rod 20 is reduced due to the characteristic that the speed of the sterilizer door is multiplied by the stroke, so that the sterilizer door can be applied to common push rods with short stroke and low speed, the cost is reduced, and the lifting efficiency of the sterilizer door is improved.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The utility model provides a sterilizer door, includes base (1), actuating mechanism (2) and door plant (5), actuating mechanism (2) one end and base (1) fixed connection, the other end and door plant (5) are connected, its characterized in that, actuating mechanism (2) include electric putter (20), first fixed bolster (21) and relative pulley (22) and wire rope (23) that electric putter (20) symmetry set up, first fixed bolster (21) with electric putter (20) fixed connection and with door plant (5) sliding connection, pulley (22) are fixed to be set up on first fixed bolster (21), wire rope (23) are walked around pulley (22) and one end with base (1) is connected, the other end with door plant (5) are connected.

2. The sterilizer door according to claim 1, wherein the drive mechanism (2) further comprises a second stationary bracket (24) symmetrically arranged with respect to the electric ram (20), the second stationary bracket (24) being fixedly connected to the base (1).

3. The sterilizer door according to claim 2, wherein the driving mechanism (2) further comprises a third fixing bracket (25) symmetrically arranged with respect to the electric push rod (20), the third fixing bracket (25) is fixedly connected to the door panel (5), one end of the wire rope (23) is connected to the second fixing bracket (24), and the other end is fixedly connected to the third fixing bracket (25).

4. The sterilizer door according to claim 1, wherein the drive mechanism (2) further comprises a latch (26), and the latch (26) is sleeved on the wire rope (23) for locking the wire rope (23).

5. A sterilizer door as claimed in claim 3, further comprising an upper limit mechanism (3), a lower limit mechanism (4) and a controller (6), wherein the input end of the controller (6) is electrically connected to the upper limit mechanism (3) and the lower limit mechanism (4) at the same time, and the output end is electrically connected to the electric push rod (20).

6. The sterilizer door according to claim 5, wherein the upper limit mechanism (3) comprises a safety plate (30) and a first microswitch (31), the safety plate (30) and the door panel (5) being fixedly connected; the first microswitch (31) is fixedly arranged on the door plate (5), and the first microswitch (31) is electrically connected with the controller (6) and used for detecting the state change of the safety plate (30).

7. The sterilizer door according to claim 5, wherein the lower limit mechanism (4) comprises a locking spring (40), one end of the locking spring (40) is fixedly connected with the second fixing bracket (24), and the other end of the locking spring is abutted against the steel wire rope (23).

8. The sterilizer door according to claim 7, wherein the lower limit mechanism (4) further comprises a second microswitch (41), the second microswitch (41) is fixedly arranged on the second fixing bracket (24), and the second microswitch (41) is electrically connected with the controller (6) for detecting the state change of the anti-loosening elastic sheet (40).

9. The sterilizer door according to claim 8, wherein the anti-loose spring (40) is fixedly connected with a shift lever (410) on the second microswitch (41).

10. A steriliser door as claimed in claim 1, wherein the door panel (5) is provided with a sliding track (50), the sliding track (50) being slidably connected to the first fixing support (21).