Ventilation equipment for refrigeration storage

Abstract

The utility model provides ventilation equipment for refrigeration storage. The ventilation equipment comprises a shell, and a fan, a filter screen and a sealing plate are sequentially connected into an inner cavity of the shell; the fan is coaxially connected with the filter screen; a motor is connected to the side, back on to the fan, of the filter screen, a fixed rod is connected to an output shaft of the motor, a connecting block and a movable block are movably connected to the peripheral wall of the fixed rod, a supporting strip is fixedly connected to the connecting block, connecting rods are connected to the top and the bottom of the movable block, and the connecting rods penetrate through the supporting strip; the sealing plate is connected to the connecting rod and movably connected to the supporting strip. The motor is adopted to drive the fixing rod to rotate, the movable block on the fixing rod moves front and back, the movable block drives the sealing plate on the supporting strip to move front and back through the connecting rod, the sealing plate enters the shell, the shell is sealed, cold air leakage is avoided, and the refrigeration effect of the refrigeration house is improved.

Description

Technical Field

[0001] This application relates to the technical field of ventilation equipment, and particularly to a ventilation equipment for cold storage. Background Art

[0002] When a cold storage is used to store products, it is necessary to control the concentration of carbon dioxide in the cold storage. This is because too high a concentration of carbon dioxide will accelerate the decay rate of the products. Therefore, it is often necessary to introduce outdoor air into the cold storage to adjust the concentration of carbon dioxide in the cold storage. Usually, the exhaust fan is turned on to make the outdoor air and the air in the cold storage flow and exchange to adjust the concentration of carbon dioxide in the cold storage.

[0003] Most of the common cold storage ventilation equipment currently only has a ventilation function, and the air inlet does not have a sealing function, which is likely to cause cold air leakage, thereby affecting the refrigeration effect in the cold storage. For this reason, we provide a ventilation equipment for cold storage to solve the above problems. Utility Model Content

[0004] This application provides a ventilation equipment for cold storage to solve the problem that most of the common cold storage ventilation equipment currently only has a ventilation function, the air inlet does not have a sealing function, which is likely to cause cold air leakage, thereby affecting the refrigeration effect in the cold storage.

[0005] This application provides a ventilation equipment for cold storage, including a housing, in which a fan, a filter screen and a sealing plate are sequentially connected in the inner cavity of the housing;

[0006] The fan is coaxially connected with the filter screen; a motor is connected to the side of the filter screen facing away from the fan, an output shaft of the motor is connected with a fixed rod, a connecting block and a movable block are movably connected to the peripheral wall of the fixed rod, a support bar is fixedly connected to the connecting block, connecting rods are connected to the top and bottom of the movable block, and the connecting rods penetrate through the support bar; the sealing plate is connected to the connecting rods and is movably connected to the support bar.

[0007] Preferably, a stop block is fixedly connected to one end of the fixed rod away from the motor, and the stop block is used to limit the sealing plate.

[0008] Preferably, the support bar is provided with a groove, and the connecting rod penetrates through the groove.

[0009] Preferably, two sealing plates are provided, and the two sealing plates are respectively located on the upper surface and the lower surface of the fixed rod, and are movably connected between the two sealing plates.

[0010] Preferably, the side surface of the sealing plate is attached to the inner wall of the housing.

[0011] Preferably, a fixing block is provided on the side of the filter screen facing away from the fan, and the motor is fixedly connected to the fixing block.

[0012] Preferably, a sleeve is sleeved on the outer wall of the housing, a through hole is provided inside the sleeve, and the through hole communicates with the inner cavity of the housing.

[0013] Preferably, the sleeve includes a connected sealing sleeve and a connecting sleeve, and the connecting sleeve is sleeved on the housing.

[0014] Preferably, the inner diameter of the connecting sleeve is larger than the inner diameter of the sealing sleeve; and,

[0015] the outer diameter of the connecting sleeve is larger than the outer diameter of the sealing sleeve.

[0016] Preferably, an installation block is connected to the surface of the sealing sleeve, an installation rod is passed through the installation block, and the installation rod also extends towards the connecting sleeve and passes through the connecting sleeve; a nut is connected to the part of the installation rod passing through the connecting sleeve.

[0017] Beneficial effects:

[0018] Considering that most of the common cold storage ventilation equipment at present only has the ventilation function, the air inlet does not have the sealing function, which is likely to cause cold air leakage, thereby affecting the refrigeration effect in the cold storage. The motor is used to drive the fixed rod to rotate, so that the movable block on the fixed rod moves back and forth. The movable block drives the sealing plate on the support bar to move back and forth through the connecting rod, so that the sealing plate enters the housing to seal the housing, avoid cold air leakage, and improve the refrigeration effect of the cold storage.

[0019] The above description is only an overview of the technical solutions of the embodiments of the present application. In order to be able to understand the technical means of the embodiments of the present application more clearly, it can be implemented according to the content of the description. And in order to make the above and other purposes, features and advantages of the embodiments of the present application more obvious and understandable, the following specifically illustrates the specific embodiments of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained according to these drawings without creative efforts.

[0021] Figure 1 It is a schematic diagram of the overall structure of a ventilation device for cold storage according to the present utility model.

[0022] Figure 2 It is a schematic diagram of the planing structure of a ventilation device for cold storage according to the present utility model.

[0023] Figure 3 This is a schematic diagram of the connection structure of the fixed rod of a ventilation device for cold storage of the present utility model.

[0024] Figure 4 This is a schematic diagram of the connection structure of the connecting rod of a ventilation device for cold storage of the present utility model.

[0025] Description of reference numerals:

[0026] 1. Housing; 2. Sleeve; 21. Sealing sleeve; 22. Connecting sleeve; 3. Fan; 4. Filter screen; 5. Fixed block; 6. Fixed rod; 7. Connecting block; 8. Support bar; 9. Movable block; 10. Connecting rod; 11. Sealing plate; 12. Stopper; 13. Groove; 14. Through hole; 15. Mounting block; 16. Mounting rod; 17. Nut; 18. Motor. Detailed implementation manners

[0027] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are some but not all of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without making creative efforts shall fall within the protection scope of the present application.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs; the terms used in the description of the present application in the specification are only for the purpose of describing specific embodiments and are not intended to limit the present application; the terms "including" and "having" and any variations thereof in the description and claims of the present application and the drawings are intended to cover non-exclusive inclusion.

[0029] Reference to "embodiment" herein means that a particular feature, structure or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The phrase "embodiment" appearing in various places in the specification is not necessarily referring to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0030] The orientation terms used in the following description are all the directions shown in the figures, and do not limit the specific structure of the present application. For example, in the description of the present application, terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0031] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, the "connection" or "coupling" of a mechanical structure may refer to a physical connection. For example, a physical connection may be a fixed connection, such as a fixed connection through a fixing member, such as a screw, bolt, or other fixing member; a physical connection may also be a detachable connection, such as a snap connection or a snap-fit connection; a physical connection may also be an integral connection, such as a connection by welding, bonding, or integrally forming a connection. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0032] In order to enable those skilled in the art of the present technology to better understand the solution of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings.

[0033] The present utility model provides a ventilation device for cold storage as shown in Figures 1-4 Figure 1, which includes a housing 1. A sleeve 2 is fixedly connected to the front surface of the housing 1. A fan 3 and a filter screen 4 are respectively fixedly connected inside the housing 1. A fixing block 5 is fixedly connected inside the filter screen 4. A motor 18 is fixedly connected to the front side of the fixing block 5. A fixing rod 6 is fixedly connected to the front end of the motor 18. A connecting block 7 is movably connected to the surface of the fixing rod 6. Support bars 8 are fixedly connected to both the top and bottom of the connecting block 7. A movable block 9 is threadedly connected to the surface of the fixing rod 6. Connecting rods 10 are fixedly connected to both the top and bottom of the movable block 9. The other end of the connecting rod 10 extends outside the support bar 8. A sealing plate 11 is slidably connected to the surface of the support bar 8. The inner wall of the sealing plate 11 is movably connected to the surface of the connecting rod 10.

[0034] Specifically: The sleeve 2 is fixedly connected to the housing 1 and both are installed in the wall. The fan 3 is used for exhausting air from the cold storage. The filter screen 4 can prevent dust and insects from entering. The fixing block 5 is used to support the motor 18. The output end of the motor 18 is connected to the fixing rod 6. The connecting block 7 is sleeved on the fixing rod 6 to position the connecting block 7 at a specified position on the fixing rod 6. The connecting rods 10 at the top and bottom of the movable block 9 pass through the support bar 8 and the sealing plate 11 to limit the left and right moving sealing plate 11.

[0035] One end of the fixing rod 6 away from the motor 18 is fixedly connected with a stop block 12. The stop block 12 is used to limit the sealing plate 11. The support bar 8 is provided with a groove 13. The connecting rod 10 passes through the groove 13. Two sealing plates 11 are provided. The two sealing plates 11 are respectively located on the upper surface and the lower surface of the fixing rod 6 and are movably connected between the two sealing plates 11. The side surface of the sealing plate 11 is attached to the inner wall of the housing 1. On the side of the filter screen 4 facing away from the fan 3, there is a fixing block 5. The motor 18 is fixedly connected to the fixing block 5. The outer wall of the housing 1 is sleeved with a sleeve 2. A through hole 14 is provided inside the sleeve 2. The through hole 14 communicates with the inner cavity of the housing 1. The sleeve 2 includes a connected sealing sleeve 21 and a connecting sleeve 22. The connecting sleeve 22 is sleeved on the housing 1. The inner diameter of the connecting sleeve 22 is larger than the inner diameter of the sealing sleeve 21; and the outer diameter of the connecting sleeve 22 is larger than the outer diameter of the sealing sleeve 21. The surface of the sealing sleeve 21 is connected with a mounting block 15. A mounting rod 16 passes through the mounting block 15. The mounting rod 16 also extends towards the connecting sleeve 22 and passes through the connecting sleeve 22; the part of the mounting rod 16 passing through the connecting sleeve 22 is connected with a nut 17.

[0036] Specifically: The stop block 12 is used to limit the moving movable block 9 so that the movable block 9 will not fall off the fixing rod 6, improving the stability of the movement. The groove 13 is a slot hole arranged from front to back. When the movable block 9 moves, the movable block 9 drives the connecting rod 10 to move. The connecting rod 10 passes through the sealing plate 11 and moves in the groove 13 on the support bar 8. The through hole 14 in the sleeve 2 is funnel-shaped and has the same inclination angle as the two support bars 8, enabling the sealing plate 11 on the support bar 8 to move into the sleeve 2. The connecting sleeve 22 is installed in the exhaust hole of the cold storage to seal the hole. When installing the ventilation equipment in the hole of the cold storage wall, the mounting block 15 contacts the outer wall of the cold storage wall. First, insert the mounting rod 16 into the hole of the cold storage wall, and then tighten the nut 17 so that the nut 17 contacts the inner wall of the cold storage, thereby completing the installation of the ventilation equipment. The two sealing plates 11 form a circular object, and the circular object has the same inner diameter as the housing 1, so as to be able to completely seal the housing 1.

[0037] Working principle: When the ventilation equipment for cold storage is in use, start the motor 18. The motor 18 drives the fixed rod 6 to rotate. There is a thread on the fixed rod 6. The fixed rod 6 drives the connecting block 7 to move. The connecting block 7 drives the support bar 8 to move. With the cooperation of the two inclined support bars 8, the connecting rod 10 follows the movable block 9 to move in the groove 13, thereby driving the sealing plate 11 on the surface of the connecting rod 10 to move left and right on the support bar 8. When the sealing plate 11 completely enters the housing 1, the housing 1 is sealed to prevent cold air from leaking and improve the refrigeration effect of the cold storage.

[0038] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present application.

Claims

1. An air exchange device for cold storage, comprising a housing (1), characterized in that: In the inner cavity of the housing (1), a fan (3), a filter screen (4) and a sealing plate (11) are sequentially connected; The fan (3) is coaxially connected to the filter screen (4); on the side of the filter screen (4) facing away from the fan (3), a motor (18) is connected. The output shaft of the motor (18) is connected to a fixing rod (6). A connecting block (7) and a movable block (9) are movably connected to the peripheral wall of the fixing rod (6). A support bar (8) is fixedly connected to the connecting block (7). Connecting rods (10) are connected to both the top and bottom of the movable block (9). The connecting rods (10) pass through the support bar (8). The sealing plate (11) is connected to the connecting rods (10) and is movably connected to the support bar (8).

2. The air exchange device for cold storage according to claim 1, wherein: A stop block (12) is fixedly connected to one end of the fixing rod (6) away from the motor (18). The stop block (12) is used to limit the sealing plate (11).

3. The air exchange device for cold storage according to claim 1, characterized in that: The support bar (8) is provided with a groove (13). The connecting rod (10) passes through the groove (13).

4. The air exchange device for cold storage according to claim 1, characterized in that: Two sealing plates (11) are provided. The two sealing plates (11) are respectively located on the upper surface and the lower surface of the fixing rod (6), and are movably connected between the two sealing plates (11).

5. The air exchange device for cold storage according to claim 1 or 3, characterized in that: The side surface of the sealing plate (11) is in contact with the inner wall of the housing (1).

6. The air exchange device for cold storage according to claim 1, wherein: On the side of the filter screen (4) facing away from the fan (3), a fixing block (5) is provided. The motor (18) is fixedly connected to the fixing block (5).

7. The air exchange device for cold storage according to claim 1, wherein: A sleeve (2) is sleeved on the outer wall of the housing (1). A through hole (14) is provided inside the sleeve (2). The through hole (14) communicates with the inner cavity of the housing (1).

8. The air exchange device for cold storage according to claim 7, characterized in that: The sleeve (2) includes a sealing sleeve (21) and a connecting sleeve (22) connected to each other. The connecting sleeve (22) is sleeved on the housing (1).

9. The air exchange device for cold storage according to claim 8, wherein: The inner diameter of the connecting sleeve (22) is larger than the inner diameter of the sealing sleeve (21); and, The outer diameter of the connecting sleeve (22) is larger than the outer diameter of the sealing sleeve (21).

10. The air exchange device for cold storage according to claim 9, characterized in that: An installation block (15) is connected to the surface of the sealing sleeve (21). An installation rod (16) passes through the installation block (15). The installation rod (16) also extends towards the connecting sleeve (22) and passes through the connecting sleeve (22); a nut (17) is connected to the part of the installation rod (16) passing through the connecting sleeve (22).

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