Sterilization pot cover closing door signal transmission device
By setting alternating convex and concave teeth on the sterilization pot, and using elastically retractable guide needles and guide columns, the problem of disconnection of the detection circuit caused by pressure on the pot lid is solved, and the pot lid is realized when floating The design that still maintains contact improves the safety and stability of the equipment.
Patent Information
- Application Number
- CN202320621209.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-03-27
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2033-03-27
AI Technical Summary
During use, the traditional portable sterilization pot is pressed due to internal pressure and is pushed up, causing the cover to be closed, causing false alarms and work interruptions, posing safety hazards.
A signal transmission device for sterilizing pot-close door is designed. By providing alternating convex and concave teeth on the cylinder and pot cover, and combining spring guide needles and guide columns that can retract elastically, ensure that the pot cover is in When floating, the contact between the cover detection circuit can be maintained to prevent interruption of operation.
It effectively prevents interruption of the closing detection circuit when the pot cover is floating, improves the safety and use stability of the equipment, and ensures the continuity and safety of the sterilization process.
Smart Images
Figure CN222341619U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sterilizing pots, in particular to a signal transmission 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 autoclaves use bolts to connect the lid and the pressure-bearing cylinder, which cannot detect the lid in place signal and are very dependent on the user's safety awareness. If the user does not tighten the bolts during use, it is easy to cause an explosion accident in the portable autoclave during operation, causing a personal safety accident for the user, which poses a safety hazard. Therefore, it is very necessary to set a lid closing detection circuit on the lid to check whether the lid and the cylinder are connected in place. However, the current lid closing detection circuit is of upper and lower distance contact type, that is, when the lid is completely closed in place, the upper and lower contacts of the lid closing detection circuit are connected. However, when the autoclave is in use, due to the high internal pressure of the autoclave, the lid will be slightly lifted up by the pressure in the pot, which often causes the lid closing detection circuit to be disconnected, resulting in false alarms and interruption of work. 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 transmission device for closing the lid 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 signal transmission device for closing the lid door of a sterilizing pot, comprising a cylinder body and a pot cover, wherein 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, and the plurality of convex teeth on the cylinder body and the plurality of concave teeth on the pot cover are arranged alternately and matched, and further comprising a fixing frame, an opening and closing mechanism, and a signal transmission mechanism for triggering a lid closing detection circuit, wherein fixing seats are arranged on both sides of the top of the cylinder body, and the two ends of the fixing frame are detachably fixed on the fixing seats, and the opening and closing mechanism is arranged on the fixing frame and can drive the pot cover to move around The axis rotates in the vertical direction, and a raised positioning bump is provided on the fixing seat. Positioning grooves matched with the positioning bump are provided at the bottom of both ends of the fixing frame. The signal transmission mechanism includes a micro switch, a PCB board, an elastically retractable spring guide pin, and a guide column. The micro switch is arranged in the fixing frame. When the pot cover is completely closed, the opening and closing mechanism can trigger the micro switch to conduct the cover closing detection circuit. A jack is vertically opened on the positioning bump, and the guide column is vertically embedded in the jack. The spring guide pin is vertically arranged in the positioning groove and can contact and correspond with the guide column up and down. The micro switch, spring guide pin, and guide column are connected in series on the PCB board.
[0008] Preferably, the spring guide needle comprises a needle sleeve, a guide needle and a spring. The guide needle is vertically slidably adapted in the needle sleeve, and the bottom end extends out of the needle sleeve and corresponds to the guide column up and down. The spring is arranged in the needle sleeve at the top of the guide needle.
[0009] Preferably, under normal conditions, the distance H from the guide pin to the top of the positioning groove is smaller than the total height of the positioning groove.
[0010] 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.
[0011] Preferably, the signal transmission mechanism also includes a trigger arm, which is fixed on the guide column and corresponds to the opening and closing pressure rod of the micro switch. When the guide column is located at one end edge of the limit slot, the convex teeth and the concave teeth correspond alternately, and the trigger arm is not in contact with the micro switch; when the guide column is located at the other end edge of the limit slot, the convex teeth and the concave teeth overlap and correspond, and the trigger arm triggers the micro switch.
[0012] 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.
[0013] 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.
[0014] (III) Beneficial effects
[0015] The utility model provides a signal transmission device for closing the lid door of a sterilizing pot, which has the following beneficial effects:
[0016] 1. The autoclave cover closing door signal transmission device can ensure that the cover closing detection circuit is always closed when the cover floats up during the pressure application process by arranging an elastically retractable spring guide pin on the fixing frame to elastically support and contact the lower contact guide post on the fixing seat, thereby effectively preventing work interruption. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is an axonometric view of the pot lid of the utility model in a closed state;
[0018] Figure 2 It is the corresponding diagram of the convex teeth and the concave teeth of the utility model;
[0019] Figure 3 This is a corresponding diagram of the fixing frame and the fixing seat of the utility model;
[0020] Figure 4 It is a structural schematic diagram of the opening and closing mechanism of the utility model;
[0021] Figure 5 It is a side sectional view of the utility model;
[0022] Figure 6 This is an axonometric diagram of the pot lid of the utility model in an open state;
[0023] Figure 7 It is a schematic diagram of the signal transmission mechanism of the utility model;
[0024] Figure 8 This is a cross-sectional view of the connection between the spring guide needle and the guide post of the utility model.
[0025] 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 spring guide pin, 74 guide column, 75 trigger arm, 76 trigger convex package, 77 jack, 731 needle sleeve, 732 guide pin, 733 spring. DETAILED DESCRIPTION
[0026] The utility model provides a signal transmission device for closing the lid door of a sterilizing pot, such as Figure 1-8 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.
[0027] 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.
[0028] 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.
[0029] Handle 53 Normally Figure 1 As shown, the handle 53 is parallel to the horizontal plane. Figure 6As 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.
[0030] 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.
[0031] 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.
[0032] like Figure 5 As 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.
[0033] 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.
[0034] 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, an elastically retractable spring guide pin 73, and a guide column 74. The micro switch 71 is arranged in the fixing frame 3. When the pot cover 2 is completely closed, the opening and closing mechanism 5 can trigger the micro switch 71. Only when the micro switch 71, the spring guide pin 73, and the guide column 74 are all in contact and closed can the cover closing detection circuit on the PCB board 72 be turned on.
[0035] Specifically, a socket 77 is vertically provided on the positioning protrusion 6, a guide post 74 is vertically embedded in the socket 77, a spring guide pin 73 is vertically arranged in the positioning groove 10 and can contact and correspond with the guide post 74 up and down, and a micro switch 71, a spring guide pin 73, and a guide post 74 are connected in series on a PCB board 72. Only when the pot cover 2 is completely covered on the cylinder body 1, the spring guide pin 73 at the bottom of the fixing frame 3 will contact with the guide post 74 to achieve conduction.
[0036] By arranging an elastically retractable spring guide pin 73 on the fixing frame 3 and elastically supporting and contacting the lower contact guide column 74 on the fixing seat 4, it can be ensured that the pot cover 2 floats up during the pressure application process and still maintains contact so that the lid closing detection circuit is always closed, effectively preventing work interruption.
[0037] like Figure 8 As shown, the spring guide needle 73 includes a needle sleeve 731, a guide needle 732 and a spring 733. The guide needle 732 is vertically slidably adapted in the needle sleeve 731, and the bottom end extends out of the needle sleeve 731 and corresponds to the guide column 74 up and down. The spring 733 is arranged in the needle sleeve 731 and located at the top of the guide needle 732. When the spring guide needle 73 is inserted into the jack 77, the guide column 74 in the jack 77 will compress the guide needle 732, so that part of it shrinks into the needle sleeve 731 and compresses the spring 733. When the pot cover 2 is pressed and pushed upward during the use of the sterilizing pot, the guide needle 732 will extend under the action of the spring 733 and always conflict with the guide column 74. Avoid the power failure of the cover closing detection circuit.
[0038] like Figure 8 As shown, under normal conditions, the distance H between the guide pin 732 and the top of the positioning groove 10 is less than the total height of the positioning groove 10. H can be greater than 0.5 mm to prevent the guide pin 732 from contacting foreign objects when the pot cover 2 is placed, so as to avoid damaging the spring guide pin 73 when the pot cover 2 is placed on the table.
[0039] like Figure 1 and Figure 7 As shown, the signal transmission mechanism 7 also includes a trigger arm 75, which 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.
[0040] 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.
[0041] 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 spring 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.
[0042] Although 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 transmission device for closing the lid of a sterilizing pot, comprising a cylinder body (1) and a pot cover (2), wherein the upper outer ring of the cylinder body (1) is provided with a plurality of convex teeth (8), and the lower outer ring of the pot cover (2) is provided with a plurality of concave teeth (9), 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. The top two sides of the cylinder body (1) are provided with fixing seats (4). The two 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. The fixing frame (4) is provided with a raised positioning bump (6). The bottoms of the two ends of the fixing frame (3) are provided with positioning grooves (10) adapted to the positioning bump (6). The signal transmission mechanism (7) comprises a micro switch (71), a PCB The invention relates to a pot cover (72), a spring guide pin (73) which can be elastically extended, and a guide column (74); the micro switch (71) is arranged in a fixing frame (3); when the pot cover (2) is completely closed, the opening and closing mechanism (5) can trigger the micro switch (71) to conduct the cover closing detection circuit; a plug hole (77) is vertically provided on the positioning protrusion (6); the guide column (74) is vertically embedded in the plug hole (77); the spring guide pin (73) is vertically arranged in the positioning groove (10) and can contact and correspond with the guide column (74) up and down; the micro switch (71), the spring guide pin (73) and the guide column (74) are connected in series on the PCB board (72).
2. The autoclave cover closing door signal transmission device according to claim 1, characterized in that: The spring guide needle (73) comprises a needle sleeve (731), a guide needle (732) and a spring (733); the guide needle (732) is vertically slidably adapted in the needle sleeve (731), and the bottom end thereof extends out of the needle sleeve (731) and corresponds to the guide column (74) up and down; the spring (733) is arranged in the needle sleeve (731) at the top of the guide needle (732).
3. The signal transmission device for closing the lid door of a sterilizing pot according to claim 2, characterized in that: Under normal conditions, the distance H from the guide needle (732) to the top of the positioning groove (10) is smaller than the total height of the positioning groove (10).
4. The autoclave cover closing door signal transmission 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).
5. The signal transmission device for closing the lid door of a sterilizing pot according to claim 4, characterized in that: The signal transmission mechanism (7) further comprises a trigger arm (75), wherein 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 at this time 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 at this time the trigger arm (75) triggers the micro switch (71).
6. The autoclave cover closing door signal transmission device according to claim 5, 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).
7. The autoclave cover closing door signal transmission device according to claim 4, 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).