Safety pressure relief mechanism of sterilization furnace

Abstract

The utility model relates to the technical field of sterilization furnaces, in particular to a safety pressure relief mechanism of a sterilization furnace, which comprises a pressure relief pipe, a breather pipe and a lifting structure, the breather pipe is communicated with the pressure relief pipe; the lifting structure is arranged in the pressure relief pipe; the lifting structure comprises an abutting plate, a spring and a lifting frame; one end of the spring is connected with the abutting plate, and the other end is connected with the lifting frame; the lifting structure is attached to the inner wall of the pressure relief pipe. The lifting structure can move relative to the pressure relief pipe; a screw groove is formed in the side, close to the abutting plate, of the pressure relief pipe. And the pressure relief pipe is provided with a screw rod corresponding to the screw groove. At present, many pressure release valves are manually operated, and the pressure condition needs to be concerned at any time, so that the pressure release of the sterilization furnace is troublesome. Compared with the prior art, the pressure relief mechanism can be automatically opened and closed according to pressure through the cooperation of the spring, the abutting plate and the lifting frame, automatic adjustment can be conducted according to the pressure during pressure relief, manual attention and operation are not needed, and pressure relief is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to a sterilization furnace technical field especially relates to a sterilization furnace safety pressure release mechanism. BACKGROUND

[0002] Sterilization furnace is a kind of equipment for killing bacteria, virus and other microorganisms, is widely used in food, medicine, health, cosmetics, health products and other industries, and family, school, hospital and other places. The usual sterilization furnace has ultraviolet sterilization furnace, steam sterilization furnace etc. The safety pressure release mechanism of sterilization furnace is the important component part of guaranteeing its work safety, mainly functions in the case of high temperature and high pressure, releases unnecessary steam and pressure, to ensure the safety of operation process. It can prevent the equipment damage or personnel casualty accident caused by excessive pressure.

[0003] Many current safety pressure release structures open the switch of pressure release valve when the pressure in sterilization furnace reaches a certain degree, release the excess pressure, but the process is manually operated, needs to pay attention to pressure condition at all times, makes the pressure release of sterilization furnace more troublesome. UTILITY MODEL CONTENTS

[0004] In view of the technical problem of prior art, the utility model provides a sterilization furnace safety pressure release mechanism.

[0005] To solve the above technical problem, the utility model provides the following technical scheme:

[0006] A kind of sterilization furnace safety pressure release mechanism, comprising: pressure relief pipe, air pipe, lifting structure;Air pipe is communicated with pressure relief pipe;Lifting structure is arranged in pressure relief pipe;Lifting structure includes: abutment plate, spring, lifting frame;Spring one end is connected with abutment plate, other end is connected with lifting frame;Lifting structure is attached with the inner wall of pressure relief pipe;Lifting structure can be moved relative to pressure relief pipe;Pressure relief pipe is opened with screw groove on the side close to abutment plate;Pressure relief pipe is equipped with the screw rod corresponding with screw groove.

[0007] Further, the lifting frame includes: sealing plate, support rod, limit plate;Support rod one end is connected with sealing plate, other end is connected with limit plate;Sealing plate is connected with spring.

[0008] Further, the pressure relief pipe further includes: positioning plate;Positioning plate is arranged in pressure relief pipe away from screw rod one end;Positioning plate is opened with pressure relief port;Limit plate is opened with air vent;Pressure relief port radius is less than the outer diameter of limit plate.

[0009] Further, it further includes: indicating device;Indicating device includes: connecting block, connecting rope, rotating rod;Connecting block is arranged in sealing plate close to screw rod side;Connecting rope one end is connected with connecting block, other end is connected with rotating rod.

[0010] Further, the indicating device further comprises a traction rope and a traction spring; one end of the traction rope is arranged on the rotating rod, and the other end is connected with the traction spring.

[0011] Further, the indicating device further comprises a connecting rod and a pointer; the connecting rod is arranged on the rotating rod away from the pressure relief pipe; and the pointer is arranged on the connecting rod.

[0012] Further, the indicating device further comprises a connecting rod and a pointer; the connecting rod is arranged on the rotating rod away from the pressure relief pipe; and the pointer is arranged on the connecting rod.

[0013] The utility model discloses a beneficial effect is: through the cooperation of spring and the contact plate, the lifting frame, make this pressure relief mechanism can open and close according to pressure automatically, can also automatically adjust the size of the opening according to pressure, make when pressure relief can automatically adjust according to pressure, need not manual attention pressure and then operate, make pressure relief is more convenient.

[0014] Still be equipped with the screw groove and the corresponding screw on the pressure relief pipe, make the position of contact plate can be adjusted, thereby the threshold of pressure relief can be adjusted according to specific pressure relief situation, it is more flexible to use. Still be equipped with indicating device, can control the position of pointer according to the position of sealing plate, namely, the pointer can reflect the internal situation of pressure relief pipe, make the pressure condition of pressure relief place can be observed in real time, be convenient for making corresponding measures in time according to demand. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 The utility model discloses a structure schematic diagram;

[0016] Fig. 2 The utility model discloses a part structure schematic diagram in the inside.

[0017] In the drawing: 1, pressure relief pipe;11, screw;12, positioning plate;121, pressure relief port;2, breather pipe;3, lifting structure;31, contact plate;32, spring;33, lifting frame;331, sealing plate;332, support rod;333, limiting plate;3331, breather port;4, indicating device;41, connecting block;42, connecting rope;43, rotating rod;44, traction rope;45, traction spring;46, connecting rod;47, pointer;5, shell;6, watch case. DETAILED DESCRIPTION

[0018] The following is the specific embodiment of the utility model and combines the drawing, and the technical scheme of the utility model is further described, but the utility model is not limited to these embodiments.

[0019] According to Figs. 1-2The utility model provides a kind of sterilization furnace safety pressure relief mechanism, comprising: pressure relief pipe 1, air pipe 2, lifting structure 3, indicating device 4, shell 5, watch case 6.

[0020] Air pipe 2 is communicated with pressure relief pipe 1.Lifting structure 3 is arranged in pressure relief pipe 1.Lifting structure 3 includes: contact plate 31, spring 32, lifting frame 33.Spring 32 one end is connected with contact plate 31, other end is connected with lifting frame 33.Lifting structure 3 is attached with the inner wall of pressure relief pipe 1.Lifting structure 3 can move relative to pressure relief pipe 1.Pressure relief pipe 1 is close to the side of contact plate 31 and is provided with screw groove.Pressure relief pipe 1 is equipped with screw rod 11 corresponding with screw groove.

[0021] The utility model is installed, and pressure relief pipe 1 is installed on sterilization furnace and is communicated with sterilization furnace far from screw rod 11 side.In the start-up of sterilization furnace, the pressure in it will gradually increase, and the corresponding pressure in the pressure relief pipe 1 communicated with it will also be generated, so that the pressure pushes lifting frame 33 to be close to contact plate 31, and then spring 32 is compressed, and contact plate 31 is contacted with screw rod 11.In the process of spring 32 compression, lifting frame 33 is closer and closer to the communication place of air pipe 2 and pressure relief pipe 1, and when the pressure in sterilization furnace needs to be released, lifting frame 33 can be moved to the communication place of air pipe 2 and pressure relief pipe 1, and at this time, the pressure will enter air pipe 2 to release pressure.As spring 32 controls the movement of lifting frame 33, when the pressure in sterilization furnace is too small, lifting frame 33 will be on the side of pressure relief pipe 1 far from screw rod 11, so that the pressure in sterilization furnace will not be released, and the sealing is ensured, and when the pressure increases, lifting frame 33 will be moved to the communication place of air pipe 2 and pressure relief pipe 1, so that air pipe 2 is communicated with sterilization furnace, and the pressure is discharged.If the pressure continues to increase, lifting frame 33 will continue to move, so that the range of communication between air pipe 2 and sterilization furnace is larger, and the release process is accelerated, and when the pressure is released to a certain extent, lifting frame 33 will be bounced back by compressed spring 32, so that sterilization furnace is kept sealed, that is, the pressure relief mechanism can be automatically opened and closed according to the pressure, and the size of the opening can also be automatically adjusted according to the pressure, so that the pressure can be automatically adjusted during release, and manual attention to pressure is not needed for operation, so that the release is more convenient.The utility model is provided with screw groove on the side of pressure relief pipe 1 far from sterilization furnace, and is equipped with corresponding screw rod 11, screw rod 11 can rotate in screw groove, the distance between screw rod 11 and sterilization furnace changes, the position of contact plate 31 contacted with screw rod 11 changes, the compression condition of spring 32 changes, the pressure required for lifting frame 33 to move to the communication place of air pipe 2 and pressure relief pipe 1 changes, and the pressure threshold value required for release can be adjusted, so that the utility model is more flexible to use, and the versatility is wider.

[0022] The lifting frame 33 comprises a sealing plate 331, a support rod 332 and a limiting plate 333. The support rod 332 is connected to the sealing plate 331 at one end and to the limiting plate 333 at the other end. The sealing plate 331 is connected to the spring 32. The pressure relief pipe 1 further comprises a positioning plate 12. The positioning plate 12 is arranged at the end of the pressure relief pipe 1 away from the screw rod 11. The positioning plate 12 is provided with a pressure relief opening 121. The limiting plate 333 is provided with a vent opening 3331. The radius of the pressure relief opening 121 is smaller than the outer diameter of the limiting plate 333.

[0023] The lifting frame 33 is the main moving structure during pressure relief. The lifting frame 33 is arranged instead of a separate plate to prevent instability when the plate moves to the position where the vent pipe 2 is in communication with the pressure relief pipe 1. The positioning plate 12 is arranged at the end of the pressure relief pipe 1 away from the screw rod 11, i.e. close to the sterilization furnace. When the lifting frame 33 is arranged in the pressure relief pipe 1, the spring is in a compressed state, the abutting plate 31 abuts against the screw rod 11, and the limiting plate 333 abuts against the positioning plate 12. The positioning plate 12 is arranged to prevent the spring 32 from rebounding and causing the lifting frame 33 to move out of the pressure relief pipe 1 when pressure relief is completed or in other situations, so as to ensure stable operation of the structures. During pressure relief, pressure enters from the pressure relief opening 121 and the vent opening 3331 and pushes the sealing plate 331 to move towards the screw rod 11, and the limiting plate 333 is driven to move.

[0024] The indicating device 4 comprises a connecting block 41, a connecting rope 42 and a rotating rod 43. The connecting block 41 is arranged at the side of the sealing plate 331 close to the screw rod 11. The connecting rope 42 is connected to the connecting block 41 at one end and to the rotating rod 43 at the other end. The indicating device 4 further comprises a traction rope 44 and a traction spring 45. The traction rope 44 is arranged on the rotating rod 43 at one end and connected to the traction spring 45 at the other end. The indicating device 4 further comprises a connecting rod 46 and a pointer 47. The connecting rod 46 is arranged at the side of the rotating rod 43 away from the pressure relief pipe 1. The pointer 47 is arranged on the connecting rod 46. The housing 5 is connected to the pressure relief pipe 1. The watch case 6 is arranged at the side of the housing 5 away from the pressure relief pipe 1. The indicating device 4 passes through the housing 5. One side of the traction rope 44 extends out of the housing 5. One side of the connecting rod 46 extends out of the housing 5. The side of the connecting rod 46 away from the rotating rod 43 is connected to the watch case 6. The connecting rod 46 is rotatable relative to the watch case 6.

[0025] The utility model still is equipped with indicating device 4, winding has the tow rope 44 on indicating device 4, and the tow rope 44 is connected with the tow spring 45, and the tow spring 45 is fixedly arranged in the shell 5 on the side away from the tow rope 44, and still winding has the connecting rope 42 on the rotary rod 43, and the connecting rope 42 is connected with the sealing plate 331 through the connecting block 41, when the pressure in the sterilization furnace is small, the sealing plate 331 is in the position close to the sterilization furnace in the pressure relief pipe 1, so that the one end of connecting rope 42 is also in the corresponding position, so that the rotary rod 43 will rotate to a certain position, so that the tow rope 44 will be wound on the rotary rod 43, and the tow rope 44 pulls the tow spring 45 again, so that the tow spring 45 is in the tensile state, and the force of spring 32 is much greater than that of the tow spring 45, so that it is difficult to affect the lifting frame 33, and the tow spring 45 continuously is in the tensile state, when the sealing plate 331 moves to the screw rod 11 due to pressure, the connecting block 41 will also move, at this time, the connecting rope 42 loses the force exerted on the rotary rod 43, so that the tow spring 45 will pull the tow rope 44, drive the rotary rod 43 to rotate, until the connecting rope 42 keeps taut again. That is, when the sealing plate 331 moves to the sterilization furnace, it will drive the rotary rod 43 to rotate to a certain position on one side through the connecting rope 42, when the sealing plate 331 moves to the screw rod 11, the tow spring 45 will make the tow rope 44 rotate to a certain position on the other side, that is, the position of the sealing plate 331 can affect the rotation direction and rotation angle of the rotary rod 43. The connecting rod 46 is connected with the rotary rod 43, the pointer 47 is arranged on the connecting rod 46, so that when the rotary rod 43 rotates, it will drive the connecting rod 46 to rotate, so that the pointer 47 rotates, and because the sealing plate 331 will make the rotary rod 43 rotate correspondingly, so that the pointer 47 can also rotate to the corresponding position according to the position of the sealing plate 331, that is, the pressure condition of the pressure relief place can be reflected reversely according to the position of the pointer 47, so that the staff can know the pressure condition of the sterilization furnace and the pressure relief place through the position of the pointer 47 when needed, so as to take corresponding measures when needed.

[0026] The working principle and use process of the utility model are as follows:

[0027] When the pressure in the sterilization furnace is too large and needs to be released, the pressure will pass through the pressure release port 121 and the vent port 3331 and push the sealing plate 331 to move closer to the screw rod 11, so that the spring 32 is compressed and the sealing plate 331 is moved to the connection position of the vent pipe 2 and the pressure release pipe 1, so that the pressure is released from the position, and when the sealing plate 331 moves closer to the screw rod 11, the connecting block 41 will be driven to move closer to the screw rod 11, so that the connecting rope 42 and the rotating rod 43 are in a tight contact state, the traction spring 45 pulls the traction rope 44, the traction rope 44 drives the rotating rod 43 to rotate, the connecting rod 46 rotates, and the pointer 47 rotates to a certain position. When the pressure release is completed, the spring 32 is rebounded, the sealing plate 331 moves closer to the sterilization furnace and moves to a certain position, and at the same time drives the connecting block 41 to move away from the screw rod 11, so that the connecting rope 42 drives the rotating rod 43 to rotate, and the pointer 47 rotates to a certain position.

[0028] In summary, the pressure release mechanism can be automatically opened and closed according to the pressure, and the size of the opening can be automatically adjusted according to the pressure, so that the pressure can be automatically adjusted during pressure release, without the need for manual attention to pressure and operation, so that the pressure release is more convenient.

[0029] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or replace them with similar ways, but will not deviate from the spirit of the present application or exceed the scope defined by the appended claims.

Claims

1. A sterilizing oven safety relief mechanism characterized by: Include: Pressure relief pipe (1), air pipe (2), lifting structure (3); The air pipe (2) is communicated with the pressure relief pipe (1); The lifting structure (3) is arranged in the pressure relief pipe (1); The lifting structure (3) comprises: abutting plate (31), spring (32), lifting frame (33); One end of the spring (32) is connected with the abutting plate (31), and the other end is connected with the lifting frame (33); The lifting structure (3) is attached to the inner wall of the pressure relief pipe (1); The lifting structure (3) can move relative to the pressure relief pipe (1); The pressure relief pipe (1) is provided with a screw slot on one side close to the abutting plate (31); The pressure relief pipe (1) is provided with a screw rod (11) corresponding to the screw slot.

2. The safety pressure relief mechanism of the sterilization furnace according to claim 1, wherein: The lifting frame (33) comprises: sealing plate (331), support rod (332), limiting plate (333); One end of the support rod (332) is connected with the sealing plate (331), and the other end is connected with the limiting plate (333); The sealing plate (331) is connected with the spring (32).

3. The safety pressure relief mechanism of the sterilization furnace according to claim 2, wherein: The pressure relief pipe (1) further comprises: positioning plate (12); The positioning plate (12) is arranged at one end of the pressure relief pipe (1) away from the screw rod (11); The positioning plate (12) is provided with a pressure relief port (121); The limiting plate (333) is provided with an air vent (3331); The radius of the pressure relief port (121) is smaller than the outer diameter of the limiting plate (333).

4. The safety pressure relief mechanism of the sterilization furnace according to claim 2, wherein: Further comprising: indicating device (4); The indicating device (4) comprises: connecting block (41), connecting rope (42), rotating rod (43); The connecting block (41) is arranged on one side of the sealing plate (331) close to the screw rod (11); One end of the connecting rope (42) is connected with the connecting block (41), and the other end is connected with the rotating rod (43).

5. The safety pressure relief mechanism of the sterilization furnace according to claim 4, wherein: The indicating device (4) further comprises: traction rope (44), traction spring (45); One end of the traction rope (44) is arranged on the rotating rod (43), and the other end is connected with the traction spring (45).

6. The safety pressure relief mechanism of the sterilization furnace according to claim 5, wherein: The indicating device (4) further comprises: connecting rod (46), pointer (47); The connecting rod (46) is arranged on one side of the rotating rod (43) away from the pressure relief pipe (1); The pointer (47) is arranged on the connecting rod (46).

7. The safety pressure relief mechanism of the sterilization furnace according to claim 6, wherein: Further comprising: shell (5), watch case (6); The shell (5) is connected with the pressure relief pipe (1); The watch case (6) is arranged on one side of the shell (5) away from the pressure relief pipe (1). The indicating device (4) penetrates the housing (5); One side of the traction rope (44) extends out of the housing (5); One side of the connecting rod (46) extends out of the housing (5); The side of the connecting rod (46) away from the rotating rod (43) is connected with the watch case (6); The connecting rod (46) is rotatable relative to the watch case (6).

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