Door cover closing detection mechanism

Abstract

The utility model discloses a door cover closing detection mechanism which comprises a sterilizer body and a sealing door, a pressure container with an opening facing the sealing door is arranged in the sterilizer body, a sealing cover matched with the opening end of the pressure container is arranged on the sealing door, and a driving device used for driving the sealing door to be opened and closed is arranged on the sterilizer body. The sterilizer body is provided with a fixing sleeve and a trigger rod which is movably matched with the fixing sleeve, a connecting hole is formed in the fixing sleeve, and the trigger rod reciprocates in the axial direction of the connecting hole. At the moment, the sealing cover and the pressure container are in sealing fit, and the sterilizer continues to work; if the second trigger switch and the third trigger switch are both disconnected, a gap exists between the sealing cover and the pressure container, and the sterilizer stops working, so that the danger caused by high-temperature steam leakage due to the fact that the sealing door continues to work after being opened can be prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to detection equipment technical field, especially relate to a door cover closing detection mechanism. BACKGROUND

[0002] The sealing door lock mechanism for the pressure container in the sterilizer is divided into mechanical door lock mechanism and electric control type door lock mechanism. Among them, the mechanical door lock mechanism mostly has complex structure and needs manual door opening operation, and has the defect that the sealing door can be easily opened artificially when the pressure container in the sterilizer is in vacuum and high pressure state. At this time, the high pressure steam and high temperature water in the pressure container will be sprayed out, which will cause the operator to be easily scalded.

[0003] Through retrieval, the utility model discloses a kind of sealing door automatic locking mechanism for pressure container in sterilizer, including sterilizer body and sealing door, the pressure container with opening end is positioned to sealing door in the sterilizer body, sealing cover is positioned on the sealing door with the pressure container opening end cooperation: locking screw, screw spring, screw drive device, trigger lever and trigger lever return spring, first trigger switch, second trigger switch and control panel are further positioned on the sterilizer body, wherein, locking screw and trigger lever can move inside and outside, during the trigger lever inside movement, the first trigger switch is touched and triggers the control panel to control the screw drive device start operation, in turn drive the locking screw outside movement, during the locking screw outside movement, the second trigger switch is touched and triggers the control panel to control the screw drive device stop operation: the sealing door is further provided with the abutting block for abutting the trigger lever and making it inside movement and the locking nut for locking cooperation with the locking screw.

[0004] The above prior art will exist when using, the sealing door can be opened by gas pressure due to the high pressure in the cavity of sterilizer, and if the distance of opening is short, gas leakage will not occur, if the sealing door is opened by gas pressure for a long distance, gas leakage will occur, the first trigger switch and the second trigger switch cannot identify this situation, when the sealing door is opened, if sterilizer continues to work, the sterilization effect will be poor, and high temperature steam leakage will be dangerous, so the defect needs to be improved. UTILITY MODEL CONTENTS

[0005] The utility model aims at the above problem, and provides a door cover closing detection mechanism, which has the advantage of automatically closing the sterilizer when the door is opened.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: a door cover closing detection mechanism, including sterilizer body and sealed door, the pressure vessel of opening direction sealed door is equipped in the sterilizer body, the sealed cover that is used to cooperate with pressure vessel opening end is equipped on sealed door, the drive arrangement that is used to drive sealed door opening and closing is equipped on the sterilizer body, the fixed sleeve and trigger lever that are movably cooperated with fixed sleeve are equipped on the sterilizer body, the connecting hole is equipped in the fixed sleeve, the trigger lever is reciprocating along the axial direction of connecting hole, the first trigger switch, second trigger switch and third trigger switch that are movably cooperated with the trigger lever are sequentially arranged from the outside to the inside of connecting hole, the first trigger switch, second trigger switch and third trigger switch all are with drive arrangement electric signal.

[0007] Preferably, the trigger lever includes a sliding rod and a connecting rod, the connecting rod is provided with a mounting hole, the sliding rod is mounted in the mounting hole, the sliding rod is slidingly arranged in the connecting hole, one end of the connecting rod extends out of the connecting hole, a return spring is arranged between the connecting rod and the fixed sleeve, and the return spring is sleeved on the outer periphery of the sliding rod.

[0008] Preferably, the connecting rod is provided with a convex ring, and the connecting hole is provided with a limiting step limiting matched with the convex ring.

[0009] Preferably, one end of the connecting rod is provided with an abutting head, and the abutting head is limiting matched with the sterilizer body.

[0010] Preferably, the abutting head is threadedly matched with the connecting rod.

[0011] Preferably, the drive device includes a motor, a transmission member, a rotating shaft and a rotating member, one end of the transmission member is drivingly mounted on the output end of the motor, the rotating shaft is mounted on the other end of the transmission member, the rotating member is fixedly mounted on the rotating shaft, the rotating member is provided with a threaded hole, and the sealed door is provided with a screw rod threadedly matched with the threaded hole.

[0012] Preferably, a bearing is sleeved on the outer periphery of the rotating member, and the bearing is fixedly mounted in the sterilizer body.

[0013] Preferably, the end of the screw rod is provided with a conical head for guiding.

[0014] Compared with the prior art, the utility model has the beneficial effects as follows:

[0015] The utility model provides a door cover closed detection mechanism, when the sealing door is pushed open, if only third trigger switch is off, sealing cover and pressure container are still in sealing cooperation at this moment, and sterilizer continues to work, but if second trigger switch and third trigger switch are off, sealing cover and pressure container exist gap at this moment, and sterilizer stops working, thereby can prevent sealing door from continuing to work after opening, causes high temperature steam leakage to happen dangerous. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the three -dimensional structure schematic diagram of the utility model;

[0017] Figure 2 It is the sectional three -dimensional structure schematic diagram of the utility model;

[0018] Figure 3 It is Figure 2 The enlarged structure schematic diagram of A in

[0019] Figure 4 It is Figure 2 The enlarged structure schematic diagram of B in

[0020] Figure 5 It is the three -dimensional structure schematic diagram of the utility model part

[0021] BRIEF DESCRIPTION OF DRAWINGS: 1, sterilizer body;11, pressure container;2, sealing door;21, screw rod;3, fixed sleeve;30, connecting hole;301, limiting step;31, trigger rod;310, mounting hole;311, connecting rod;312, sliding rod;313, convex ring;32, abutment;33, spring;41, first trigger switch;42, second trigger switch;43, third trigger switch;5, driving device;51, motor;52, transmission part;53, rotating shaft;54, rotating part;540, screw hole;55, bearing. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative work are within the protection scope of the utility model.

[0023] As Figures 1-5As shown, a door cover closing detection mechanism, comprising a sterilizer body 1 and a sealing door 2, the sterilizer body 1 is provided with a pressure container 11 with an opening facing the sealing door 2, the sealing door 2 is provided with a sealing cover matched with the opening end of the pressure container 11, the sterilizer body 1 is provided with a driving device 5 for driving the sealing door 2 to open and close, the sterilizer body 1 is provided with a fixed sleeve 3 and a trigger lever 31 movably matched with the fixed sleeve 3, the fixed sleeve 3 is provided with a connecting hole 30, the connecting hole 30 is a hole penetrating through both ends, the trigger lever 31 reciprocally moves along the axial direction of the connecting hole 30, the connecting hole 30 is sequentially provided with a first trigger switch 41, a second trigger switch 42 and a third trigger switch 43 from outside to inside, and the first trigger switch 41, the second trigger switch 42 and the third trigger switch 43 are all triggered matched with the trigger lever 31, the first trigger switch 41, the second trigger switch 42 and the third trigger switch 43 are electrically connected with the driving device 5;

[0024] When the first trigger switch 41 is triggered, the driving device 5 is started to drive the sealing door 2 to close, and the sealing door 2 pushes the trigger lever 31 to move;

[0025] When the trigger lever 31 triggers the third trigger switch 43, the driving device 5 is closed to complete the door closing;

[0026] When the second trigger switch 42 and the third trigger switch 43 are disengaged, the sterilizer stops working.

[0027] It should be noted that the second trigger switch 42 is closer to the third trigger switch 43, when the second trigger switch 42 is disengaged, a gap appears between the sealing cover and the pressure container 11, so the sterilizer stops working to prevent steam leakage.

[0028] The trigger lever 31 comprises a sliding lever 312 and a connecting lever 311, the connecting lever 311 is provided with a mounting hole 310, the sliding lever 312 is screw-fixedly installed in the mounting hole 310, the sliding lever 312 is slidingly arranged in the connecting hole 30, one end of the connecting lever 311 extends out of the connecting hole 30, a reset spring 33 is abutted between the connecting lever 311 and the fixed sleeve 3, the reset spring 33 is sleeved on the outer periphery of the sliding lever 312, and the reset spring 33 is used for resetting the connecting lever 311.

[0029] The connecting rod 311 is provided with a convex ring 313 on the outer periphery, and the connecting hole 30 is provided with a limiting step 301 matched with the convex ring 313, so that the disconnection between the connecting rod 311 and the connecting hole 30 can be prevented. In addition, an abutting head 32 is installed at one end of the connecting rod 311, the abutting head 32 is located outside the connecting hole 30, and the abutting head 32 is used to contact the sealing door 2. The abutting head 32 is matched with the sterilizer body 1 in position, and the abutting head 32 is matched with the connecting rod 311 in screw thread, so that the position of the abutting head 32 in the axial direction can be finely adjusted, and the stroke of the connecting rod 311 can be adjusted.

[0030] The driving device 5 includes a motor 51, a transmission member 52, a rotating shaft 53, and a rotating member 54. One end of the transmission member 52 is drivingly installed on the output end of the motor 51. The rotating shaft 53 is installed on the other end of the transmission member 52. The rotating shaft 53 is fixedly installed with the rotating member 54. The rotating member 54 is provided with a threaded hole 540. The sealing door 2 is provided with a screw rod 21 matched with the threaded hole 540 in screw thread. The rotating member 54 is provided with a bearing 55 on the outer periphery. The bearing 55 is fixedly installed in the sterilizer body 1. The end of the screw rod 21 is provided with a conical head for guiding, so that the screw rod 21 can more easily enter the threaded hole 540.

[0031] It should be noted that the transmission member 52 in the present application is a worm gear. The worm is drivingly installed on the output end of the motor 51. The worm gear is connected in mesh with the worm. The worm gear is installed on the outer periphery of the rotating shaft 53.

[0032] In use: the sealing door 2 is manually pushed, so that the screw rod 21 enters the threaded hole 540. At this time, the abutting head 32 contacts the sealing door 2, so that the connecting rod 311 and the sliding rod 312 move in the axial direction of the connecting hole 30, so that the connecting rod 311 triggers the first trigger switch 41. At this time, the motor 51 is started, so as to drive the transmission member 52, and then drive the rotating shaft 53 to rotate, and then drive the rotating member 54 to rotate. Since the screw rod 21 is matched with the threaded hole 540, when the rotating member 54 rotates, the threaded hole 540 rotates synchronously, so as to drive the screw rod 21 to move in the axial direction of the threaded hole 540, so that the sealing door 2 continuously moves to the side close to the sterilizer body. When the connecting rod 311 triggers the third trigger switch, the motor 51 is turned off at this time, and the sealing cover is sealingly matched with the pressure container 11.

[0033] And the sterilizer in the working process will appear pressure is too high to cause the sealing door 2 is pushed open, when the sealing door 2 is pushed open, if only third trigger switch 43 is off, at this time the sealing cover and pressure vessel 11 between still in sealing cooperation, sterilizer continues to work;But if the second trigger switch 42 and third trigger switch 43 are off, at this time the sealing cover and pressure vessel 11 between there is a gap, sterilizer stops working.

[0034] It should be noted that in this document, the terms "first" and "second" and the like are used merely as identifiers to distinguish between two instances of an entity or operation, and are not necessarily required to be used in a specific order or to have any other meaning.

[0035] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A door cover closure detection mechanism, comprising a sterilizer body (1) and a sealing door (2), a pressure container (11) is provided in the sterilizer body (1) and opens towards the sealing door (2), a sealing cover is provided on the sealing door (2) and matches the opening end of the pressure container (11), a driving device (5) is provided on the sterilizer body (1) and is used to drive the sealing door (2) to open and close, characterized in that: The sterilizer body (1) is provided with a fixed sleeve (3) and a trigger lever (31) movably matched with the fixed sleeve (3), the fixed sleeve (3) is provided with a connecting hole (30), the trigger lever (31) reciprocates along the axial direction of the connecting hole (30), the connecting hole (30) is provided with a first trigger switch (41), a second trigger switch (42) and a third trigger switch (43) from outside to inside, which are respectively triggered matched with the trigger lever (31), the first trigger switch (41), the second trigger switch (42) and the third trigger switch (43) are electrically connected with the driving device (5).

2. A door cover closure detection mechanism according to claim 1, characterized in that: The trigger lever (31) comprises a sliding rod (312) and a connecting rod (311), the connecting rod (311) is provided with a mounting hole (310), the sliding rod (312) is mounted in the mounting hole (310), the sliding rod (312) is slidably arranged in the connecting hole (30), one end of the connecting rod (311) extends out of the connecting hole (30), a return spring (33) is arranged between the connecting rod (311) and the fixed sleeve (3), the return spring (33) is sleeved on the outer periphery of the sliding rod (312).

3. A door cover closure detection mechanism according to claim 2, characterized in that: The connecting rod (311) is provided with a convex ring (313) on the outer periphery, and the connecting hole (30) is provided with a limiting step (301) limiting matched with the convex ring (313).

4. A door cover closure detection mechanism according to claim 3, characterized in that: One end of the connecting rod (311) is provided with an abutting head (32), and the abutting head (32) is limiting matched with the sterilizer body (1).

5. A door cover closure detection mechanism according to claim 4, characterized in that: The abutting head (32) is threadedly matched with the connecting rod (311).

6. A door cover closure detection mechanism according to claim 1, characterized in that: The driving device (5) comprises a motor (51), a transmission member (52), a rotating shaft (53) and a rotating member (54), one end of the transmission member (52) is drivingly mounted on the output end of the motor (51), the rotating shaft (53) is mounted on the other end of the transmission member (52), the rotating member (54) is fixedly mounted on the rotating shaft (53), the rotating member (54) is provided with a threaded hole (540), and the sealing door (2) is provided with a screw rod (21) threadedly matched with the threaded hole (540).

7. A door cover closure detection mechanism according to claim 6, characterized in that: The rotating member (54) is provided with a bearing (55) on the outer periphery, and the bearing (55) is fixedly mounted in the sterilizer body (1).

8. A door cover closure detection mechanism according to claim 6, characterized in that: The screw rod (21) is provided with a conical head for guiding.

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