Safety device of batch type circulating grain dryer

Abstract

The utility model provides a safety device of a batch type circulating grain dryer, which belongs to the technical field of agricultural machinery and comprises a dryer body. A protection mechanism, comprising an air opening communicating with an inner cavity of the drying machine body, a fixing base fixedly connected to the top of the drying machine body, a transparent heat conduction shell fixedly installed on the top of the fixing base, a thermal expansion block arranged in an inner cavity of the transparent heat conduction shell, and a sliding plate slidably connected to the inner wall of the transparent heat conduction shell and used in cooperation with the thermal expansion block. Through cooperation of all parts in the protection mechanism, when the internal temperature of the drying machine body is greatly increased, the air opening can be automatically opened for cooling, and after the internal temperature of the drying machine body is reduced, cold air is prevented from entering the drying chamber through the automatic air opening; unnecessary energy waste is avoided while the situation that the internal temperature of the drying machine body is too high and consequently grains are damaged or equipment is too hot is avoided, and the effect of efficient utilization of energy is ensured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to agricultural machinery technical field, concretely relates to a kind of safety device of batch type circulating grain dryer. BACKGROUND

[0002] The safety device of batch type circulating grain dryer plays a crucial role in the operation of the equipment. The batch type circulating grain dryer can monitor the pressure through a pressure sensor. When the pressure exceeds the safe range, an alarm is triggered or a pressure relief valve is activated to release the pressure. This effectively prevents the pressure in the drying chamber and the pipeline system from being too high, avoiding equipment damage or explosion caused by high pressure.

[0003] Although some batch type circulating grain dryers in the prior art have the ability to automatically release the pressure in the drying chamber and the pipeline system, some traditional equipment still has the problem of not being able to automatically release the heat in the drying chamber and the pipeline system. If the heat is not discharged in time, it may cause overheating due to high-temperature operation of the equipment, not only increasing the risk of fire, but also damaging the service life of the equipment and even affecting the quality of the grain. SUMMARY

[0004] The utility model aims to provide a kind of safety device of batch type circulating grain dryer, to solve the problems raised in the above background.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A safety device of batch type circulating grain dryer, comprising a dryer main body;

[0007] A protection mechanism, comprising a tuyere connected to the inner cavity of the dryer main body, a fixed seat fixedly connected to the top of the dryer main body, a transparent heat-conducting shell fixedly installed on the top of the fixed seat, a thermal expansion block arranged in the inner cavity of the transparent heat-conducting shell, a sliding plate slidingly connected to the inner wall of the transparent heat-conducting shell and cooperating with the thermal expansion block, a connecting rod fixedly connected to the surface of the sliding plate away from the thermal expansion block, a rack plate fixedly installed on the penetrating end of the connecting rod, a gear meshing with the outer surface of the rack plate, a drive column fixedly connected to the inner surface of the gear, a drive block fixedly sleeved on the outer surface of the drive column, a main strip and a vice strip respectively hinged to the surface of the drive block, a driven assembly respectively hinged to the other end of the main strip and the vice strip, and an auxiliary assembly arranged outside the tuyere.

[0008] As a preferred scheme of the utility model, the driven assembly includes driven blocks respectively hinged to the main strip and the auxiliary strip away from the driving block, a driven strip hinged to the outer surface of the driven block, a driven column fixedly connected to the inner surface of the driven block, and blades fixedly connected to the penetrating ends of the driving column and the driven column.

[0009] As a preferred scheme of the utility model, the outer surface of the connecting rod is in sliding contact with the inner surface of the transparent heat-conducting shell, the driven blocks and the driven strips are distributed in a circumferential array on the outer side of the air port, and the driven columns are all rotationally connected to the inner surface of the air port.

[0010] As a preferred scheme of the utility model, the auxiliary assembly includes a fixed frame fixedly connected to the outer surface of the air port and a guide rail fixedly connected to the outer side of the fixed frame and used in cooperation with the rack plate.

[0011] As a preferred scheme of the utility model, the inner surfaces of the air port and the fixed frame are rotationally connected to the outer surface of the driving column, and the outer surface of the rack plate is in sliding contact with the inner wall of the guide rail.

[0012] As a preferred scheme of the utility model, the auxiliary assembly further includes support strips fixedly connected to the inner surfaces of three sides of the air port and positioning blocks fixedly connected to the outer end surfaces of the support strips and used in cooperation with the blades.

[0013] As a preferred scheme of the utility model, the auxiliary assembly further includes a reset spring sleeved on the outer surface of the connecting rod and used in cooperation with the sliding plate, and one end of the reset spring is fixedly connected to the outer surface of the sliding plate.

[0014] As a preferred scheme of the utility model, the outer end surfaces of the blades are all fixedly installed on the outer surface of the positioning block through bearings, and the other end of the reset spring away from the sliding plate is fixedly connected to the inner wall of the transparent heat-conducting shell.

[0015] Compared with the prior art, the utility model has the beneficial effects that through the cooperation between the components in the protection mechanism, the air port can be automatically opened for cooling when the internal temperature of the drying machine body greatly rises, and the air port can be automatically closed to prevent cold air from entering the drying chamber when the internal temperature of the drying machine body decreases, so that the internal temperature of the drying machine body is prevented from being too high to cause damage to the grains or overheating of the equipment, unnecessary energy waste is avoided, and the effect of efficient energy utilization is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the premise of not deviating from the connotation of the present application.

[0017] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0018] Figure 2 It is a schematic diagram of the overall structure of the protection mechanism of the present application;

[0019] Figure 3 It is a schematic diagram of the overall structure of the present application Figure 2 It is a schematic diagram of the local structure of the present application

[0020] Figure 4 It is a schematic diagram of the internal structure of the transparent heat-conducting shell in the present application.

[0021] In the figure: 100, drying machine main body; 200, protection mechanism; 201, air port; 202, fixed seat; 203, transparent heat-conducting shell; 204, thermal expansion block; 205, sliding plate; 206, connecting rod; 207, rack plate; 208, gear; 209, driving column; 210, driving block; 211, main strip; 212, auxiliary strip; 213, driven assembly; 213a, driven block; 213b, driven strip; 213c, driven column; 213d, blade; 214, auxiliary assembly; 214a, fixed frame; 214b, guide rail; 214c, support strip; 214d, positioning block; 214e, return spring. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings of the specification.

[0023] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without deviating from the connotation of the present application, therefore the present application is not limited by the specific embodiments disclosed below.

[0024] Secondly, the "one embodiment" or "embodiment" referred to herein means that the specific features, structures or characteristics can be included in at least one implementation of the present application. In this specification, "in one embodiment" does not mean the same embodiment, nor is it an independent or alternative embodiment that excludes other embodiments.

[0025] Embodiment

[0026] With reference to Figures 1-4 For the embodiment of the utility model, the embodiment provides a safety device of batch type circulating grain dryer, can realize when the internal temperature of dryer body 100 rises greatly, automatically open air port 201 and carry out cooling, and after the internal temperature of dryer body 100 drops, automatically avoid the effect that cold air enters drying chamber.

[0027] Dryer body 100;

[0028] It should be noted that the dryer body 100 is used to reduce the moisture content in the grain from a higher level at harvest to a level suitable for storage and transportation to prevent the grain from mildewing, rotting or insect infestation during storage, prolong the shelf life of the grain, and the dryer body 100 is prior art, which will not be described in detail, and those skilled in the art can clearly understand its working principle.

[0029] The protection mechanism 200 includes an air port 201 connected to the inner cavity of the dryer body 100, a fixed seat 202 fixedly connected to the top of the dryer body 100, a transparent heat-conducting shell 203 fixedly installed on the top of the fixed seat 202, a thermal expansion block 204 arranged in the inner cavity of the transparent heat-conducting shell 203, a sliding plate 205 slidingly connected to the inner wall of the transparent heat-conducting shell 203 and cooperating with the thermal expansion block 204, a connecting rod 206 fixedly connected to the surface of the sliding plate 205 away from the thermal expansion block 204, a rack plate 207 fixedly installed on the penetrating end of the connecting rod 206, a gear 208 meshing with the outer surface of the rack plate 207, a drive column 209 fixedly connected to the inner surface of the gear 208, a drive block 210 fixedly sleeved on the outer surface of the drive column 209, a main strip 211 and a secondary strip 212 respectively hinged to the surface of the drive block 210, a driven assembly 213 respectively hinged to the other end of the main strip 211 and the secondary strip 212, and an auxiliary assembly 214 arranged outside the air port 201.

[0030] It should be noted that the transparent heat-conducting shell 203 is made of polyimide material with a temperature resistance of up to 200℃ or above and good heat-conducting performance, the thermal expansion block 204 is made of nickel-titanium alloy material with excellent shape memory effect and super elasticity, which expands rapidly when heated and automatically restores after cooling without manual intervention, when the drive column 209 drives the drive block 210 to rotate, the drive block 210 can drive the main strip 211 and the secondary strip 212 to move, so that the main strip 211 and the secondary strip 212 simultaneously drive a plurality of driven blocks 213a and driven columns 213c to rotate, and through the cooperation of the drive column 209 and the driven column 213c, a plurality of blades 213d are driven to rotate synchronously.

[0031] Specifically, the driven assembly 213 includes a driven block 213a hingedly connected to the main strip 211 and the auxiliary strip 212 away from the driving block 210, a driven strip 213b hingedly connected to the outer surface of the driven block 213a, a driven column 213c fixedly connected to the inner surface of the driven block 213a, and a vane 213d fixedly connected to the penetrating end of the driving column 209 and the driven column 213c, respectively.

[0032] Further, the outer surface of the connecting rod 206 is in sliding contact with the inner surface of the transparent heat-conducting shell 203, the driven block 213a and the driven strip 213b are distributed in a circumferential array on the outer side of the air port 201, and the driven columns 213c are all rotationally connected to the inner surface of the air port 201.

[0033] It should be further noted that the fixed frame 214a is used to support the guide rail 214b, and the guide rail 214b is used to support the rack plate 207.

[0034] Preferably, the auxiliary assembly 214 includes a fixed frame 214a fixedly connected to the outer surface of the air port 201, and a guide rail 214b fixedly connected to the outer side of the fixed frame 214a and cooperating with the rack plate 207.

[0035] It should be noted that the inner surfaces of the air port 201 and the fixed frame 214a are rotationally connected to the outer surface of the driving column 209, and the outer surface of the rack plate 207 is in sliding contact with the inner wall of the guide rail 214b.

[0036] Among them, the positioning block 214d is used to support the vane 213d, so as to prevent the vane 213d from bending the driving column 209 and the driven column 213c.

[0037] Further, the auxiliary assembly 214 further includes a support strip 214c fixedly connected to the inner surfaces of three sides of the air port 201, respectively, and a positioning block 214d fixedly connected to the outer end surface of the support strip 214c and cooperating with the vane 213d.

[0038] Specifically, the auxiliary assembly 214 further includes a reset spring 214e sleeved on the outer surface of the connecting rod 206 and cooperating with the sliding plate 205, one end of the reset spring 214e being fixedly connected to the outer surface of the sliding plate 205.

[0039] It should be explained that the reset spring 214e is used to reset the sliding plate 205, so that the sliding plate 205 returns to the initial position in preparation for subsequent cooling operation.

[0040] Preferably, the outer end surfaces of the plurality of vanes 213d are fixedly installed on the outer surface of the positioning block 214d through bearings, and the end of the reset spring 214e away from the sliding plate 205 is fixedly connected to the inner wall of the transparent heat-conducting shell 203.

[0041] In use, when the temperature in the drying chamber of the drying machine body 100 and the pipeline system rises sharply, heat is transferred to the fixed seat 202 through the shell of the drying machine body 100, and then to the heat expansion block 204 through the cooperation of the fixed seat 202 and the transparent heat-conducting shell 203, so that the heat expansion block 204 is heated and expanded and elastically deformed. The sliding plate 205 is extruded by the heat expansion block 204, so that the sliding plate 205 drives the connecting rod 206 and the rack plate 207 to move linearly, and gives the return spring 214e a pressure. The rack plate 207 drives the gear 208, the drive column 209 and the drive block 210 to rotate, so that the drive block 210 drives the main strip 211 and the auxiliary strip 212 to move, so that the main strip 211 and the auxiliary strip 212 simultaneously drive a plurality of driven blocks 213a, driven strips 213b and driven columns 213c to rotate. Through the cooperation of the drive column 209 and the driven column 213c, a plurality of blades 213d are simultaneously rotated, so that the air port 201 is opened for heat dissipation.

[0042] After the temperature in the drying chamber of the drying machine body 100 and the pipeline system decreases: when the heat expansion block 204 cools down and restores its shape, the sliding plate 205 loses pressure and is reset by the reaction force of the return spring 214e, so that the above mechanical movement is reversed, so that the plurality of blades 213d are reset to close the air port 201, thereby effectively preventing cold air from entering the drying chamber and reducing unnecessary energy loss and affecting the drying effect.

[0043] In summary, through the cooperation between the components in the protection mechanism 200, the air port 201 can be automatically opened for cooling when the internal temperature of the drying machine body 100 rises sharply, and the air port 201 can be automatically closed to prevent cold air from entering the drying chamber when the internal temperature of the drying machine body 100 decreases, so as to prevent the internal temperature of the drying machine body 100 from being too high to cause damage to the grains or overheating of the equipment, while avoiding unnecessary energy waste and ensuring efficient energy utilization.

[0044] It is important to note that the construction and arrangements of the application shown in the various exemplary embodiments are illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications can be made to the embodiments without departing from the novel teachings and advantages of the subject matter described herein. For example, elements described as integrated in a single unit can be separated, elements described as separate can be integrated, and the position, number, shape, and arrangements of elements can be varied. Accordingly, all such modifications are intended to be included within the scope of the present inventive subject matter. The order or sequence of any process or method steps can be varied or re-sequenced without departing from the general nature of the claims. Any "means plus function" clauses are intended to cover the structures described herein as performing the recited functionality and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes, and omissions can be made in the design, operating conditions, and arrangement of the exemplary embodiments without departing from the scope of the present inventive subject matter. Accordingly, the present inventive subject matter is not limited to the particular embodiments described and illustrated herein, but extends to equivalents of which the foregoing describes are intended to cover.

[0045] Furthermore, in order to provide a concise description of the exemplary embodiments, not all features of an actual implementation can be described (i.e., those pertaining to the

[0046] It is understood that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions can be made. Such development efforts can inevitably lead to a number of substitutions, modifications, changes, and omissions of parts illustrated as having a specific configuration. Such are the natural consequences of research and development efforts, and

[0047] It should be noted that the above examples are intended to illustrate the technical solutions of the present application but not limit the present application, and although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the present application, and all should be included in the scope of the claims of the present application.

Claims

1. A safety device for a batch cycle grain dryer, characterised in that: The utility model relates to a drying machine main part (100); The utility model provides a drying machine main part (100) is provided with the protection mechanism (200), the protection mechanism (200) includes the air port (201) that communicates in the inner chamber of drying machine main part (100), the fixed seat (202) that fixes connection in drying machine main part (100) top, the transparent heat conduction shell (203) that fixed installation is in the fixed seat (202) top, the thermal expansion block (204) that sets up in the inner chamber of transparent heat conduction shell (203), the sliding plate (205) that sliding connection is used with the thermal expansion block (204) in the inner wall of transparent heat conduction shell (203) cooperation, the connecting rod (206) that fixed connection is in the surface of sliding plate (205) away from the thermal expansion block (204) side, the rack plate (207) that fixed installation is in the through -end of connecting rod (206), the gear (208) that engages in the outer surface of rack plate (207), the drive column (209) that fixed connection is in the inner surface of gear (208), the drive block (210) that fixed sleeve is set in the outer surface of drive column (209), the main strip (211) and vice strip (212) that are respectively hinged in the surface of drive block (210), the driven assembly (213) that is respectively hinged in the other end of main strip (211) and vice strip (212), and the auxiliary assembly (214) that sets up in the outside of air port (201). The driven assembly (213) includes driven blocks (213a) that are respectively hinged to the main strip (211) and vice strip (212) away from the drive block (210), driven bars (213b) that are hinged to the outer surface of the driven blocks (213a), driven columns (213c) that are fixedly connected to the inner surface of the driven blocks (213a), and vanes (213d) that are fixedly connected to the through-end of the drive column (209) and the driven column (213c).

2. A safety device for a batch cycle grain dryer as claimed in claim 1 wherein: The outer surface of the connecting rod (206) is in sliding contact with the inner surface of the transparent heat conduction shell (203), the driven blocks (213a) and the driven bars (213b) are distributed in a circumferential array outside the air port (201), and the driven columns (213c) are all rotationally connected to the inner surface of the air port (201).

3. A safety device for a batch cycle grain dryer as claimed in claim 2 wherein: The auxiliary assembly (214) includes a fixed frame (214a) fixedly connected to the outer surface of the air port (201), and a guide rail (214b) fixedly connected to the outside of the fixed frame (214a) and cooperating with the rack plate (207).

4. A safety device for a batch cycle grain dryer as claimed in claim 3 wherein: The inner surfaces of the air port (201) and the fixed frame (214a) are rotationally connected to the outer surface of the drive column (209), and the outer surface of the rack plate (207) is in sliding contact with the inner wall of the guide rail (214b).

5. A safety device for a batch cycle grain dryer as claimed in claim 4 wherein: The auxiliary assembly (214) further includes support bars (214c) fixedly connected to the inner surfaces of three sides of the air port (201), and positioning blocks (214d) fixedly connected to the outer end surfaces of the support bars (214c) and cooperating with the vanes (213d).

6. A safety device for a batch cycle grain dryer as claimed in claim 5 wherein: ​ 7. A safety device for a batch cycle grain dryer as claimed in claim 6 wherein: The auxiliary assembly (214) further comprises a reset spring (214e) sleeved on the outer surface of the connecting rod (206) and matched with the sliding plate (205), one end of the reset spring (214e) being fixedly connected with the outer surface of the sliding plate (205).

8. A safety device for a batch cycle grain dryer as claimed in claim 7 wherein: The outer end surfaces of the plurality of blades (213d) are fixedly installed on the outer surface of the positioning block (214d) through bearings, and the end of the reset spring (214e) away from the sliding plate (205) is fixedly connected with the inner wall of the transparent heat-conducting shell (203).

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