Constant temperature sterilization device

Abstract

The present invention relates to the field of sterilization equipment, and particularly to a constant-temperature sterilization device, which includes a box body. One side of the box body has an accommodating cavity extending inward. There is a carrier plate in the accommodating cavity. At least three carrier columns are distributed on the edge of the carrier plate. A bearing member is arranged on the surface of the carrier column. The bearing member includes a rotating wheel, and the rotating wheel supports the carrier plate upward. The carrier column is connected with a driving mechanism for driving its rotation. An air spraying pipe is arranged in the accommodating cavity. The air spraying pipe extends upward and bends from the edge of the carrier plate, and the top end of the air spraying pipe bends above the middle of the carrier plate. Spray holes are evenly arranged on the surface of the air spraying pipe. The air spraying pipe is connected with an air pump, and an electric heating component is arranged between the air spraying pipe and the air pump. A fan is installed through the inner wall of the accommodating cavity. The present invention uses the air spraying pipe to spray hot air flow to the articles in a close-range wrapping manner, and cooperates with the carrier plate to drive the articles to rotate, so as to achieve comprehensive sterilization of the articles, and it is not easy to generate sterilization dead corners. Moreover, the position where the hot air is ejected is closer to the articles, and the sterilization efficiency is high.

Description

Technical Field

[0001] The present invention relates to the field of sterilization equipment, and particularly to a constant-temperature sterilization device. Background Art

[0002] A dry heat sterilizer is used for sterilizing products such as glassware and metal devices. The articles are placed inside the box, maintaining a relatively airtight environment, and circulating air conduction is carried out inside the box. By electrically heating the air flow, a constant high-temperature environment is formed inside the box body. The articles can achieve the sterilization purpose by maintaining for a period of time in this environment.

[0003] In the traditional dry heat sterilizer, the air conduction inside adopts the convection form. The gas inlet and outlet positions are generally set in the up-down or left-right direction. During sterilization, it is necessary to circulate hot air to gradually increase the temperature of the inner cavity. Only when the air in the entire inner cavity reaches the set temperature can it play a role in comprehensively sterilizing the articles. The sterilization effect is exerted slowly. Moreover, with the air flow convection conduction, there are easily dead corners when acting on irregularly shaped articles. The sterilization of the dead corner parts depends on the continuous maintenance of the overall temperature of the inner cavity, which prolongs the sterilization time. Summary of the Invention

[0004] The object of the present invention is to solve the following problems existing in the prior art: In the traditional dry heat sterilizer, the air conduction inside adopts the convection form. The gas inlet and outlet positions are generally set in the up-down or left-right direction. During sterilization, it is necessary to circulate hot air to gradually increase the temperature of the inner cavity. Only when the air in the entire inner cavity reaches the set temperature can it play a role in comprehensively sterilizing the articles. The sterilization effect is exerted slowly. Moreover, with the air flow convection conduction, there are easily dead corners when acting on irregularly shaped articles. The sterilization of the dead corner parts depends on the continuous maintenance of the overall temperature of the inner cavity, which prolongs the sterilization time.

[0005] To solve the problems existing in the prior art, the present invention provides a constant-temperature sterilization device, including a box body. One side of the box body has an accommodating cavity extending inward. There is a carrier plate in the accommodating cavity. At least three carrier columns are distributed on the edge of the carrier plate. A bearing member is provided on the surface of the carrier column. The bearing member includes a rotating wheel, and the rotating wheel supports the carrier plate upward. The carrier column is connected with a driving mechanism for driving its rotation. A spray pipe is arranged in the accommodating cavity. The spray pipe bends upward from the edge of the carrier plate and extends, and the top end of the spray pipe bends to above the middle of the carrier plate. Spray holes are evenly arranged on the surface of the spray pipe. The spray pipe is connected with an air pump, and an electric heating component is arranged between the spray pipe and the air pump. A fan is installed through the inner wall of the accommodating cavity.

[0006] Preferably, the electric heating component includes a through pipe. One end of the through pipe is connected to the exhaust end of the air pump, and the other end of the through pipe communicates with the spray pipe. Electric heating wires are arranged inside the wall of the through pipe.

[0007] Preferably, one end of the through pipe close to the jet pipe has a reduced-diameter valve port, a valve block is fitted in the valve port, a contact rod pointing to the jet pipe is fixed to the valve block, a guide cylinder slides on the contact rod, the guide cylinder is fixedly connected to the jet pipe, a spring is arranged between the valve block and the jet pipe, a first microswitch is arranged at the port part of the guide cylinder, and the first microswitch is electrically connected to the heating wire.

[0008] Preferably, at least two loading trays are distributed up and down, and each edge of the loading tray corresponds to one of the jet pipes.

[0009] Preferably, the bearing member further includes a contact handle. The inside of the loading column is hollow, and a vertically extending sliding opening is formed on the surface of the loading column. The contact handle penetrates through the sliding opening from the inside of the loading column and is fixedly connected to the rotating wheel. A second microswitch is arranged below the contact handle inside the loading column. The rotating wheel is vertically elastically connected to the loading column through an elastic member. The through pipe is connected to the exhaust end of the air pump through a solenoid valve, and the solenoid valve is electrically connected to the second microswitch.

[0010] Preferably, the elastic member includes a screw cylinder. The surface of the loading column has an external thread, the screw cylinder is threadedly connected to the loading column, an upwardly bent elastic piece is fixed on the upper surface of the screw cylinder, and the top end of the elastic piece supports the rotating wheel.

[0011] Preferably, the driving mechanism includes a motor. A transmission cavity is arranged at the bottom of the box body. The bottom end of the loading column rotatably penetrates into the transmission cavity, and the shaft end of the motor is connected to the loading column through belt transmission.

[0012] Preferably, the blower is arranged on one side of the accommodating cavity away from the jet pipe, and an air return channel is connected to the exhaust end of the blower. The air return channel communicates with the intake end of the air pump.

[0013] Compared with the related art, the constant-temperature sterilization device provided by the present invention has the following beneficial effects:

[0014] 1. The present invention uses the jet pipe to spray hot air to the article in a close-range wrapping manner, and cooperates with the loading tray to drive the article to rotate, so as to achieve comprehensive sterilization of the article, not easy to generate sterilization dead corners, and the hot air spraying position is closer to the article, with high sterilization efficiency;

[0015] 2. The present invention uses the elastically supported rotating wheel to carry the loading tray. When an article is placed on the surface of the loading tray, the second microswitch is pressed and touched, the corresponding solenoid valve is opened, and the corresponding jet pipe sprays hot air, while the air path of the jet pipe corresponding to the empty loading tray is closed, forming a local sterilization effect and effectively reducing energy consumption;

[0016] 3. The present invention elastically arranges the valve block and the contact rod to ensure that the first microswitch is touched only when a certain pressure of gas is conducted in the through pipe, and the heating wire circuit is connected, avoiding overheating of the heating wire caused by gas path blockage or gas path blockage, which is prone to overheating danger. Description of the Drawings

[0017] Figure 1 One of the overall structural schematic diagrams of the present invention;

[0018] Figure 2 Another overall structural schematic diagram of the present invention;

[0019] Figure 3 Schematic diagram of the circulating gas path structure of the present invention;

[0020] Figure 4 Schematic diagram of the jet pipe structure of the present invention;

[0021] Figure 5 Schematic diagram of the electric heating component structure of the present invention;

[0022] Figure 6 Schematic diagram of the contact structure between the runner and the carrier plate of the present invention;

[0023] Figure 7 Schematic diagram of the carrier structure of the present invention;

[0024] Figure 8 Schematic diagram of the shrapnel distribution structure of the present invention;

[0025] Figure 9 Schematic diagram of the driving mechanism structure of the present invention.

[0026] Reference numerals in the figure: 1, box body; 2, accommodating cavity; 3, carrier plate; 4, carrier column; 5, carrier; 51, runner; 52, sliding port; 53, contact handle; 54, second microswitch; 55, screw cylinder; 56, shrapnel; 6, fan; 7, jet pipe; 8, electric heating component; 81, through pipe; 82, valve port; 83, valve block; 84, heating wire; 85, guide cylinder; 86, contact rod; 87, first microswitch; 88, solenoid valve; 9, motor; 10, air pump; 11, return air duct; 12, transmission cavity. Detailed implementation manners

[0027] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0028] The following describes the specific implementation of the present invention in detail with reference to specific embodiments.

[0029] Embodiment 1

[0030] As Figure 1 , Figure 2As shown in the figure, the constant temperature sterilization device includes a box body 1. An electronic control component is arranged inside one side of the box body 1. A display screen and control buttons are arranged on the surface of the box body 1. An accommodation cavity 2 is opened inward on the front side of the box body 1. A temperature sensing and control component is arranged on the side wall of the accommodation cavity 2. A box door is installed at the port of the accommodation cavity 2;

[0031] The carrier tray 3 is disc-shaped. The edge of the carrier tray 3 is a stainless steel hard ring. The middle part of the carrier tray 3 is formed by wire weaving to form a mesh surface. The installation operation of the carrier tray 3 is as follows:

[0032] As Figure 1 , Figure 2 , Figure 6 , Figure 7 As shown in

[0033] Four hollow carrier columns 4 are arranged around the carrier tray 3 in the accommodation cavity 2. A transmission cavity 12 is opened at the bottom of the box body 1. The bottom end of the carrier column 4 rotates and penetrates into the transmission cavity 12. The bearing member 5 includes a runner 51. The runner 51 is sleeved outside the carrier column 4. A vertically extending sliding opening 52 is opened on the surface of the carrier column 4. A touch handle 53 penetrates through the sliding opening 52 and is fixedly connected to the inner wall of the runner 51, so that the runner 51 and the touch handle 53 can be limited to lift along the sliding opening 52;

[0033] The upper part of the runner 51 is reduced in diameter to form a circular step surface in the middle. The edge of the carrier tray 3 is pressed on the step surface of the runner 51, and the edge of the carrier tray 3 is laterally limited by the reduced diameter part of the runner 51. The reduced diameter surface of the runner 51 is serrated to increase the friction strength with the edge of the carrier tray 3. Serrations can also be arranged on the edge of the carrier tray 3 to engage with it;

[0034] As Figure 9 As shown in

[0035] Place the items to be sterilized at the center position on the surface of the carrier tray 3. Close the box door. Turn on the motor 9 to drive the four groups of carrier columns 4 to rotate. The runner 51 rotates synchronously to drive the carrier tray 3 to drive the items to rotate for rotational sterilization;

[0036] As Figure 3 , Figure 4 As shown in

[0037] As Figure 3 , Figure 5As shown in the figure, the electrothermal component 8 includes a through pipe 81. The through pipe 81 penetrates from the installation cavity into the accommodation cavity 2. The through pipe 81 is fixedly connected to the bottom end of the air jet pipe 7. An air pump 10 is installed in the installation cavity. The exhaust end of the air pump 10 is connected to an air pipe. The through pipe 81 is communicated with the air pipe. Electric heating wires 84 are spirally distributed on the inner wall of the through pipe. The electric heating wires 84 are connected to the electric control component inside the box body 1;

[0038] When the air pump 10 is turned on to conduct air into the air pipe, the gas enters the through pipe 81. The electric heating wires 84 are energized to generate heat, heating the gas passing through the through pipe 81. The hot air is introduced into the air jet pipe 7 and sprayed onto the articles through the air holes. The articles rotate with the carrier plate 3, and the hot air sprayed by the air jet pipe 7 can fully cover the surface of the articles, achieving the purpose of rapid sterilization;

[0039] As Figure 3 shown in the figure, a fan 6 is installed through the accommodation cavity 2 on the side far from the air jet pipe 7. The exhaust end of the fan 6 is communicated with the intake end of the air pump 10 through the return air duct 11. The fan 6 recovers the hot air in the accommodation cavity 2 and guides it back to the air pump 10 through the return air duct 11. Under the coordination of the electric control component and the temperature sensor, the air jet pipe 7 can spray a constant high-temperature gas, realizing constant-temperature sterilization, and the heat circulation conduction saves energy.

[0040] Embodiment 2

[0041] As Figure 2 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 shown in the figure, there are two carrier plates 3, which are distributed up and down. Two groups of runners 51 on the surface of the carrier column 4 respectively carry and limit the two carrier plates 3. A second microswitch 54 is installed inside the carrier column 4 below the contact handle 53. An elastic member is arranged below the runner 51. The elastic member includes a screw cylinder 55. The surface of the carrier column 4 has an external thread. The screw cylinder 55 is threadedly connected to the carrier column 4. The upper surface of the screw cylinder 55 is fixedly provided with a plurality of elastic pieces 56 at equal angles. The top ends of the elastic pieces 56 are bent upward to support the runner 51;

[0042] One air jet pipe 7 and a group of electrothermal components 8 correspond to the edge of each carrier plate 3. The through pipe 81 is connected to the exhaust end of the air pump 10 through a solenoid valve 88. The solenoid valve 88 is electrically connected to the second microswitch 54;

[0043] When the device leaves the factory, the screw cylinder 55 is rotated to adjust its height on the surface of the carrier column 4, ensuring that when the empty carrier plate 3 presses on the surface of the runner 51, after the elastic piece 56 is pressed and deformed downward, the contact handle 53 does not contact the second microswitch 54;

[0044] When an item is placed on the surface of one of the trays 3 and the other tray 3 is empty, the pressure of the loaded tray 3 on the elastic piece 56 increases, causing an increase in the deformation of the elastic piece 56. The contact handle 53 contacts the second microswitch 54, causing the corresponding solenoid valve 88 to open. The air jet pipe 7 corresponding to the loaded tray 3 forms a passage, and air jet sterilization is carried out normally. However, the pressure of the empty tray 3 on the elastic piece 56 is not sufficient to cause the contact handle 53 to contact the second microswitch 54, and the corresponding solenoid valve 88 is closed, causing the corresponding air jet pipe 7 to be closed, effectively reducing the waste of hot air use, and the local sterilization method is more energy-efficient;

[0045] Embodiment 3

[0046] As Figure 5 shown, a reduced-diameter valve port 82 is provided at one end of the through pipe 81 close to the air jet pipe 7. A valve block 83 is fitted in the valve port 82. A contact rod 86 pointing to the air jet pipe 7 is fixed on the surface of the valve block 83. A guide cylinder 85 is slidably sleeved outside the contact rod 86. The guide cylinder 85 is fixedly connected to the air jet pipe 7. A spring is sleeved outside the contact rod 86 and the guide cylinder 85 to elastically connect the valve block 83 to the air jet pipe 7. A first microswitch 87 is installed at the port position of the guide cylinder 85. The first microswitch 87 is electrically connected to the heating wire 84;

[0047] When gas is conducted in the through pipe 81, the high-pressure gas will squeeze the valve block 83 to move, and the contact rod 86 will contract into the guide cylinder 85. The valve block 83 opens the valve port 82 to introduce the gas into the air jet pipe 7. At this time, the contact rod 86 touches the first microswitch 87, and the circuit of the heating wire 84 is connected to generate heat. It is realized that the circuit of the heating wire 84 is only opened when gas is conducted in the through pipe 81 and the gas maintains a moving intensity, avoiding excessive heating of the heating wire 84 caused by gas path blockage or gas path blockage, which is likely to cause overheating danger.

Claims

1. The constant-temperature sterilization device includes a box body (1), and one side of the box body (1) has a receiving cavity (2) extending inwardly. It is characterized in that, There is a carrier tray (3) in the accommodation cavity (2). At least three carrier posts (4) are distributed on the edge of the carrier tray (3). A bearing member (5) is arranged on the surface of the carrier post (4). The bearing member (5) includes a rotating wheel (51). The rotating wheel (51) supports the carrier tray (3) upward. The carrier post (4) is connected with a driving mechanism for driving its rotation. An air spraying pipe (7) is arranged in the accommodation cavity (2). The air spraying pipe (7) bends upward and extends from the edge of the carrier tray (3). The top end of the air spraying pipe (7) bends above the middle of the carrier tray (3). Spray holes are evenly arranged on the surface of the air spraying pipe (7). The air spraying pipe (7) is connected with an air pump (10). An electric heating component (8) is arranged between the air spraying pipe (7) and the air pump (10). A blower (6) is installed through the inner wall of the accommodation cavity (2); The electric heating component (8) includes a through pipe (81). One end of the through pipe (81) is connected with the exhaust end of the air pump (10). The other end of the through pipe (81) communicates with the air spraying pipe (7). An electric heating wire (84) is arranged in the wall of the through pipe (81); One end of the through pipe (81) close to the air spraying pipe (7) has a reduced-diameter valve port (82). A valve block (83) is fitted in the valve port (82). A contact rod (86) pointing to the air spraying pipe (7) is fixed on the valve block (83). A guide cylinder (85) slides on the contact rod (86). The guide cylinder (85) is fixedly connected with the air spraying pipe (7). A spring is arranged between the valve block (83) and the air spraying pipe (7). A first micro switch (87) is arranged at the port part of the guide cylinder (85). The first micro switch (87) is electrically connected with the electric heating wire (84); At least two carrier trays (3) are distributed up and down. Each carrier tray (3) corresponds to one air spraying pipe (7) at the edge; The bearing member (5) further includes a contact handle (53). The inside of the carrier post (4) is hollow. A vertically extending sliding opening (52) is arranged on the surface of the carrier post (4). The contact handle (53) penetrates through the sliding opening (52) inside the carrier post (4) and is fixedly connected with the rotating wheel (51). A second micro switch (54) is arranged below the contact handle (53) inside the carrier post (4). The rotating wheel (51) is vertically elastically connected with the carrier post (4) through an elastic member. The through pipe (81) is connected with the exhaust end of the air pump (10) through an electromagnetic valve (88). The electromagnetic valve (88) is electrically connected with the second micro switch (54); The elastic member includes a screw cylinder (55). The surface of the carrier post (4) has an external thread. The screw cylinder (55) is threadedly connected with the carrier post (4). An upward-bent elastic piece (56) is fixed on the upper surface of the screw cylinder (55). The top end of the elastic piece (56) supports the rotating wheel (51).

2. The constant-temperature sterilization device according to claim 1, characterized in that, The driving mechanism includes a motor (9). There is a transmission cavity (12) at the bottom of the box body (1). The bottom end of the carrier post (4) rotates and penetrates into the transmission cavity (12). The shaft end of the motor (9) is connected with the carrier post (4) through belt transmission.

3. The constant-temperature sterilization device according to claim 1, characterized in that, The blower (6) is arranged on one side of the accommodation cavity (2) away from the air spraying pipe (7). The exhaust end of the blower (6) is connected with a return air duct (11). The return air duct (11) communicates with the intake end of the air pump (10).

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