Sterilization pot cover closing door signal detection device

Abstract

The utility model provides a signal detection device for closing a cover door of a sterilization pot, which relates to the field of sterilization pots and comprises a cylinder body and a pot cover, a plurality of convex teeth are arranged on an outer ring of an upper opening of the cylinder body, a plurality of concave teeth are arranged on an outer ring of a lower opening of the pot cover, and the convex teeth on the cylinder body and the concave teeth on the pot cover are alternately arranged and matched. The electric cooker further comprises a fixing frame, an opening and closing mechanism and a signal transmission mechanism used for triggering the cover closing detection circuit, fixing bases are arranged on the two sides of the top of the cylinder body, the two ends of the fixing frame are detachably fixed to the fixing bases, and the opening and closing mechanism is arranged on the fixing frame and can drive the cooker cover to rotate around a shaft in the vertical direction. When the pot cover is rotated to a cover closing position, the guide column drives the trigger convex hull on the trigger arm to trigger the pressing rod on the microswitch, so that the microswitch is closed, the cover closing detection circuit is conducted, the PCB transmits an electric signal to the power panel, electrifying heating can be achieved, and only when the pot cover is completely closed in place, the whole equipment can enter the heating work.

Description

Technical Field

[0001] The utility model relates to the technical field of sterilizing pots, in particular to a signal detection device for closing a cover door of a sterilizing pot. Background Art

[0002] Portable autoclaves are widely used in the fields of medical and health care, scientific research, life sciences, agriculture, etc. They are used to sterilize medical devices, dressings, glassware, solution culture media, etc. They are the most commonly used sterilization method in the field of bioengineering. This sterilization method is based on the fact that the steam formed when water boils cannot diffuse to the outside world, but gathers in a sealed container. Under this closed condition, as the water boils, the steam pressure increases and the temperature also increases accordingly. The higher the temperature, the shorter the time required and the stronger the heat penetration ability. Sterilization within a certain temperature range will not damage the culture medium or its components even if it is sterilized.

[0003] Traditional portable sterilizers use bolts to connect the pot cover and the pressure-bearing cylinder. They cannot detect the signal that the box cover is in place and are very dependent on the user's safety awareness. If the user does not tighten the bolts during use, it is easy for the portable sterilizer to explode during operation, causing personal safety accidents to the user. This is a safety hazard. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a signal detection device for a cover-closing door of a sterilizing pot, which solves the problems raised in the above-mentioned background technology.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the utility model is implemented through the following technical solutions: a sterilizing pot lid closing door signal detection device, including a cylinder body and a pot cover, a plurality of convex teeth are arranged on the upper outer ring of the cylinder body, and a plurality of concave teeth are arranged on the lower outer ring of the pot cover, the plurality of convex teeth on the cylinder body and the plurality of concave teeth on the pot cover are alternately arranged and matched, and also includes a fixed frame, an opening and closing mechanism, and a signal transmission mechanism for triggering a lid closing detection circuit, fixed seats are arranged on both sides of the top of the cylinder body, and the two ends of the fixed frame are detachably fixed on the fixed seats, the opening and closing mechanism is arranged on the fixed frame and can drive the pot cover to rotate around a vertical axis, and when the pot cover is completely closed, the opening and closing mechanism can trigger the signal transmission mechanism to turn on the lid closing detection circuit.

[0008] Preferably, the opening and closing mechanism includes a handle, a rotating disk, a rotating disk gear, a lid opening gear, and two groups of arc-shaped limiting grooves and guide columns. The rotating disk is rotatably connected to the fixed frame and is concentric with the pot cover. The rotating disk gear is cocentrically arranged on the rotating disk. The lid opening gear is laterally pivoted on the fixed frame and forms a bevel gear meshing with the rotating disk gear. The handle is coaxially connected to the rotating shaft of the lid opening gear. A conduction hole is provided at the bottom of the rotating disk. A conduction column that can be inserted into the conduction hole is vertically fixedly connected to the pot cover. Two groups of limiting grooves are symmetrically arranged on both sides of the fixed frame and are arranged around the rotation direction of the pot cover. The guide column is vertically fixed on the pot cover and slidably fits with the limiting grooves.

[0009] Preferably, the fixing seat is provided with raised positioning bumps, and the bottoms of both ends of the fixing frame are provided with positioning grooves matched with the positioning bumps.

[0010] Preferably, the signal transmission mechanism includes a micro switch, a PCB board, a guide pin, a guide post, and a trigger arm. The micro switch, guide pin, and guide post are connected in series on the PCB board. The micro switch is arranged in a fixed frame. The guide post is vertically embedded in the top of the positioning protrusion. The guide pin is vertically arranged at the bottom of the positioning groove and corresponds to the guide post. The trigger arm is fixed on the guide post and corresponds to the opening and closing pressure rod of the micro switch. When the guide post is located at one end edge of the limit groove, the convex teeth and the concave teeth correspond alternately, and the trigger arm is not in contact with the micro switch; when the guide post is located at the other end edge of the limit groove, the convex teeth and the concave teeth overlap and correspond, and the trigger arm triggers the micro switch.

[0011] Preferably, an arc-shaped trigger bulge protruding outward is provided on the midline of the trigger arm, the trigger bulge corresponds to the trigger pressure rod of the micro switch, and the radius from the rotation center of the pot cover to the outermost part of the trigger bulge is greater than the radius from the rotation center of the pot cover to the edge line of the trigger arm.

[0012] Preferably, a concave slide groove is fixedly provided at the bottom of the fixing frame below the rotating disk, and a plurality of balls are slidably provided in the concave slide groove, and the top surfaces of the balls are in contact with the rotating disk.

[0013] (III) Beneficial effects

[0014] The utility model provides a signal detection device for a cover closing door of a sterilizing pot, which has the following beneficial effects:

[0015] 1. The autoclave cover closing door signal detection device, when the pot cover is turned to the cover closing position, the guide column drives the trigger convex bump on the trigger arm to touch the pressure rod on the micro switch, so that the micro switch is closed, the cover closing detection circuit is turned on, and the PCB board transmits the electrical signal to the power board, which can be powered on for heating. Only when the pot cover is completely closed, the entire device can enter the heating work, which increases the safety of the equipment and reduces safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is an axonometric view of the pot lid of the utility model in a closed state;

[0017] Figure 2 It is the corresponding diagram of the convex teeth and the concave teeth of the utility model;

[0018] Figure 3 This is a corresponding diagram of the fixing frame and the fixing seat of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the opening and closing mechanism of the utility model;

[0020] Figure 5 It is a side sectional view of the utility model;

[0021] Figure 6 This is an axonometric diagram of the pot lid of the utility model in an open state;

[0022] Figure 7 It is a schematic diagram of the signal transmission mechanism of the present utility model.

[0023] In the figure: 1 cylinder body, 2 pot cover, 3 fixing frame, 4 fixing seat, 5 opening and closing mechanism, 6 positioning convex block, 7 signal transmission mechanism, 8 convex teeth, 9 concave teeth, 10 positioning groove, 51 rotating disk, 52 turntable gear, 53 handle, 54 cover opening gear, 55 limit groove, 56 guide column, 57 slide groove, 58 ball, 59 conduction column, 60 conduction hole, 71 micro switch, 72 PCB board, 73 guide pin, 74 guide column, 75 trigger arm, 76 trigger convex bag. DETAILED DESCRIPTION

[0024] The utility model provides a device for detecting a signal of a lid closing door of a sterilizing pot. Figure 1-7 As shown, it includes a cylinder body 1 and a pot cover 2. A plurality of convex teeth 8 are arranged on the outer ring of the upper opening of the cylinder body 1, and a plurality of concave teeth 9 are arranged on the outer ring of the lower opening of the pot cover 2. The outer diameter of the convex teeth 8 on the cylinder body 1 is slightly smaller than the outer diameter of the concave teeth 9 on the pot cover 2, and the two are matched with each other in a clearance. The number of the convex teeth 8 and the concave teeth 9 can be six or eight, and the plurality of convex teeth 8 on the cylinder body 1 and the plurality of concave teeth 9 on the pot cover 2 are arranged alternately and matched. When the pot cover 2 is covered on the cylinder body 1, the concave teeth 9 of the pot cover 2 pass through the convex teeth 8 on the cylinder body 1 and rotate at a certain phase angle, so that the convex teeth 8 on the cylinder body 1 are constrained by the pot cover 2 in the vertical direction and cannot be dislodged, thereby playing the role of closing the pot cover 2.

[0025] The utility model also includes a fixing frame 3, an opening and closing mechanism 5, and a signal transmission mechanism 7 for triggering a lid closing detection circuit. Fixing seats 4 are arranged on both sides of the top of the cylinder body 1. Both ends of the fixing frame 3 are detachably fixed on the fixing seats 4. The opening and closing mechanism 5 is arranged on the fixing frame 3 and can drive the pot cover 2 to rotate around the vertical axis. When the pot cover 2 is completely closed, the opening and closing mechanism 5 can trigger the signal transmission mechanism 7 to conduct the lid closing detection circuit.

[0026] Specific as Figure 4-5 As shown, the opening and closing mechanism 5 includes a handle 53, a rotating disk 51, a rotating disk gear 52, a cover opening gear 54, two sets of arc-shaped limit grooves 55 and a guide column 56. The rotating disk 51 is rotatably connected to the fixed frame 3 and is concentric with the pot cover 2. The rotating disk gear 52 is concentrically arranged on the rotating disk 51. The cover opening gear 54 is laterally pivoted on the fixed frame 3 and forms a bevel gear meshing with the rotating disk gear 52. When the cover opening gear 54 rotates, it can drive the rotating disk gear 52 to rotate in a circular direction. The handle 53 is U-shaped, and the handle 53 has two shafts in total. The two shafts are coaxial, and the two ends of the shafts of the two handles 53 are rotatably connected to the fixed frame 3, and the shaft of one of the handles 53 is coaxially connected to the rotating shaft of the cover opening gear 54.

[0027] Handle 53 Normally Figure 1 As shown, the handle 53 is parallel to the horizontal plane. Figure 6 As shown, when the handle 53 is rotated and lifted upward to a vertical state, the handle 53 links the opening and closing mechanism 5 to open the pot cover 2.

[0028] like Figure 5 As shown, a conduction hole 60 is provided at the bottom of the rotating disk 51, and a conduction column 59 which can be inserted into the conduction hole 60 is vertically fixedly connected to the pot cover 2. When the handle 53 is lifted upward, the cover opening gear 54 is driven to rotate, and the cover opening gear 54 drives the turntable gear 52 meshing with it and the rotating disk 51 to rotate. When the rotating disk 51 rotates, it drives the cover opening conduction column 59 welded to the pot cover 2 to rotate, and the conduction column 59 drives the pot cover 2 to rotate.

[0029] like Figure 4 As shown, two groups of limiting grooves 55 are symmetrically arranged on both sides of the fixing frame 3 and arranged around the rotation direction of the pot cover 2. The guide column 56 is vertically fixed on the pot cover 2 and slidably fits with the limiting grooves 55. When the pot cover 2 rotates, the guide column 56 is driven to slide along the limiting grooves 55. When the guide column 56 is located at one end edge of the limiting groove 55, the convex teeth 8 and the concave teeth 9 correspond alternately; when the guide column 56 is located at the other end edge of the limiting groove 55, the convex teeth 8 and the concave teeth 9 overlap and correspond.

[0030] like Figure 5As shown, the bottom of the fixed frame 3 is located below the rotating disk 51 and is fixedly provided with a concave chute 57, in which a plurality of balls 58 are slidably provided, and the top surfaces of the balls 58 are in contact with the rotating disk 51. When the rotating disk 51 rotates, its bottom surface rubs against the balls 58, which can reduce the rotation resistance of the rotating disk 51 and make the cover opening and rotation easy.

[0031] like Figure 2-3 As shown, the fixing seat 4 is provided with a raised positioning protrusion 6, and the bottoms of both ends of the fixing frame 3 are provided with positioning grooves 10 adapted to the positioning protrusion 6. When the positioning grooves 10 on the fixing frame 3 cover the positioning protrusion 6 of the fixing seat 4, and the handle 53 of the opening and closing mechanism 5 is in the position as shown in FIG. Figure 6 In the vertical state shown, the convex teeth 8 on the cylinder body 1 and the concave teeth 9 on the pot cover 2 are just in an alternating state.

[0032] like Figure 1 , Figure 2 , Figure 3 , Figure 7 As shown, the signal transmission mechanism 7 includes a micro switch 71, a PCB board 72, a guide pin 73, a guide post 74, and a trigger arm 75. The micro switch 71, the guide pin 73, and the guide post 74 are connected in series on the PCB board 72. Only when the micro switch 71, the guide pin 73, and the guide post 74 are all in contact and closed can the cover closing detection circuit on the PCB board 72 be turned on.

[0033] Specifically, the micro switch 71 is arranged in the fixing frame 3, the guide column 74 is vertically embedded in the top of the positioning protrusion 6, and the guide pin 73 is vertically arranged at the bottom of the positioning groove 10 and corresponds to the guide column 74. Only when the pot cover 2 is completely covered on the cylinder body 1, the guide pin 73 at the bottom of the fixing frame 3 will conflict with the guide column 74 to achieve conduction.

[0034] like Figure 1 and Figure 7 As shown, the trigger arm 75 is fixed on the guide column 56 and corresponds to the opening and closing pressure rod of the micro switch 71. When the guide column 56 is located at one end edge of the limit slot 55, the convex teeth 8 and the concave teeth 9 correspond alternately, and the trigger arm 75 is not in contact with the micro switch 71; when the guide column 56 is located at the other end edge of the limit slot 55, the convex teeth 8 and the concave teeth 9 overlap and correspond, and the trigger arm 75 triggers the micro switch 71.

[0035] An arc-shaped trigger bulge 76 protruding outward is provided on the midline of the trigger arm 75, and the trigger bulge 76 corresponds to the trigger pressure rod of the micro switch 71. The radius from the rotation center of the pot cover 2 to the outermost part of the trigger bulge 76 is greater than the radius from the rotation center of the pot cover 2 to the edge of the trigger arm 75. The trigger bulge 76 can prevent the edge of the trigger arm 75 from triggering the micro switch 71 in advance, making the trigger more accurate.

[0036] When the pot cover 2 is closed on the cylinder body 1, the fixing frame 3 is fixedly mounted on the fixing seat 4, so that the guide pin 73 contacts the guide column 74. Then, when the opening and closing mechanism 5 drives the pot cover 2 to rotate to the closed position, the guide column 56 drives the trigger convex bump 76 on the trigger arm 75 to touch the pressure rod on the micro switch 71, so that the micro switch 71 is closed, the closed cover detection circuit is turned on, and the PCB board 72 transmits the electrical signal to the power board, which can be powered on for heating. Only when the pot cover 2 is completely closed in place, the entire device can enter the heating work, which increases the safety of the device and reduces safety hazards.

[0037] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A signal detection device for a lid closing door of a sterilizing pot, comprising a cylinder body (1) and a pot cover (2), wherein a plurality of convex teeth (8) are arranged on the upper outer ring of the cylinder body (1), and a plurality of concave teeth (9) are arranged on the lower outer ring of the pot cover (2), and the plurality of convex teeth (8) on the cylinder body (1) and the plurality of concave teeth (9) on the pot cover (2) are arranged alternately and matched, and characterized in that: The invention also comprises a fixing frame (3), an opening and closing mechanism (5), and a signal transmission mechanism (7) for triggering a lid closing detection circuit. Fixing seats (4) are arranged on both sides of the top of the cylinder body (1). Both ends of the fixing frame (3) are detachably fixed on the fixing seats (4). The opening and closing mechanism (5) is arranged on the fixing frame (3) and can drive the pot cover (2) to rotate around a vertical axis. When the pot cover (2) is completely closed, the opening and closing mechanism (5) can trigger the signal transmission mechanism (7) to conduct the lid closing detection circuit.

2. The autoclave cover closing door signal detection device according to claim 1, characterized in that: The opening and closing mechanism (5) comprises a handle (53), a rotating disk (51), a rotating disk gear (52), a cover opening gear (54), two sets of arc-shaped limiting grooves (55) and a guide column (56); the rotating disk (51) is rotatably connected to the fixed frame (3) and is coaxial with the pot cover (2); the rotating disk gear (52) is coaxially arranged on the rotating disk (51); the cover opening gear (54) is laterally pivoted on the fixed frame (3) and forms a bevel gear with the rotating disk gear (52). The handle (53) is coaxially connected with the rotating shaft of the cover opening gear (54), a conducting hole (60) is provided at the bottom of the rotating disk (51), a conducting column (59) which can be inserted into the conducting hole (60) is vertically fixedly connected to the pot cover (2), two groups of limiting grooves (55) are symmetrically provided on both sides of the fixing frame (3) and are arranged around the rotation direction of the pot cover (2), and the guide column (56) is vertically fixed on the pot cover (2) and is slidably adapted to the limiting grooves (55).

3. The autoclave cover closing door signal detection device according to claim 2, characterized in that: The fixing seat (4) is provided with a raised positioning lug (6), and the bottoms of both ends of the fixing frame (3) are provided with positioning grooves (10) matched with the positioning lug (6).

4. The autoclave cover closing door signal detection device according to claim 3, characterized in that: The signal transmission mechanism (7) comprises a micro switch (71), a PCB board (72), a guide pin (73), a guide column (74), and a trigger arm (75); the micro switch (71), the guide pin (73), and the guide column (74) are connected in series on the PCB board (72); the micro switch (71) is arranged in a fixing frame (3); the guide column (74) is vertically embedded in the top of the positioning protrusion (6); the guide pin (73) is vertically arranged at the bottom of the positioning groove (10) and is opposite to the guide column (74). The trigger arm (75) is fixed on the guide column (56) and corresponds to the opening and closing pressure rod of the micro switch (71). When the guide column (56) is located at one end edge of the limiting groove (55), the convex teeth (8) and the concave teeth (9) correspond alternately, and the trigger arm (75) is not in contact with the micro switch (71); when the guide column (56) is located at the other end edge of the limiting groove (55), the convex teeth (8) and the concave teeth (9) overlap and correspond, and the trigger arm (75) triggers the micro switch (71).

5. The autoclave cover closing door signal detection device according to claim 4, characterized in that: An arc-shaped trigger bulge (76) protruding outward is provided on the midline of the trigger arm (75), the trigger bulge (76) corresponds to the trigger pressure rod of the micro switch (71), and the radius from the rotation center of the pot cover (2) to the outermost part of the trigger bulge (76) is greater than the radius from the rotation center of the pot cover (2) to the edge of the trigger arm (75).

6. The autoclave cover closing door signal detection device according to claim 2, characterized in that: The bottom of the fixed frame (3) is located below the rotating disk (51) and is fixedly provided with a concave sliding groove (57), and a plurality of balls (58) are slidably provided in the concave sliding groove (57), and the top surfaces of the balls (58) are in contact with the rotating disk (51).

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