Heat pump dryer

Abstract

The utility model discloses a heat pump drying machine which comprises a heat pump drying machine body, at least two layers of object placing plates are fixed in the heat pump drying machine body, cleaning wheels are arranged at the bottoms of the object placing plates, and the cleaning wheels are driven by a driving mechanism. The adsorption mechanism, namely the cleaning wheel, is arranged at the bottom of the storage plate, the motor is used for driving the cleaning wheel to transversely move in a reciprocating mode, rotation is generated through meshing of a gear and a rack while movement is conducted, and therefore water drops at the bottom of the storage plate are adsorbed and cleaned, and the situation that the drying efficiency of equipment is affected by the existence of the water drops is avoided; meanwhile, by arranging a scraping mechanism, when the cleaning wheel moves into an extrusion shell, the extrusion shell extrudes the sponge on the cleaning wheel, water in the sponge is extruded out and flows out of an overflow groove, the situation that the drying efficiency of the dryer is affected by the water is avoided, and impurities on the cleaning wheel are cleaned through a scraper.

Description

Technical Field

[0001] The utility model relates to a heat pump drying machine. Background Art

[0002] Heat pump dryers can heat and dry many types of materials, such as Chinese medicinal materials. Generally, in order to facilitate the preservation of Chinese medicinal materials and maintain the efficacy of Chinese medicinal materials, Chinese medicinal materials need to be dried. The quality of the drying effect will directly determine the efficacy of the medicinal materials.

[0003] At present, heat pump drying equipment is mainly used for heating and dehumidification. When the humidity of the material is too high, fresh air dehumidification is often used. However, due to unreasonable structure, moisture needs to be discharged during fresh air dehumidification, and a lot of heat is lost into the air along with the moisture. This heat is not easy to recover, causing the temperature of the drying room to drop rapidly. It can only be heated continuously, resulting in very high energy consumption.

[0004] A Chinese patent with authorization publication number CN209341703U discloses a heat pump dryer. By starting a flow-promoting fan, the air inlet valve is opened and the return air valve is closed. Under the action of the flow-promoting fan, fresh air will enter the drying chamber from the fresh air inlet through the mixed air channel, and the air in the return air channel will be discharged from the exhaust port through the exhaust channel, thereby achieving the purpose of dehumidification.

[0005] Although this type of heat pump dryer achieves the purpose of dehumidification, during the drying process of Chinese medicinal materials, the Chinese medicinal materials are spread flat on a drying tray, and the drying tray is generally placed in multiple layers. During the long drying process, the bottom of the upper layer of the drying tray will be heated and the air flow is relatively slow, and water droplets will gather at the bottom of the drying tray and drip onto the surface of the lower layer of medicinal materials, thereby affecting the drying effect of the lower layer of medicinal materials. Utility Model Content

[0006] In view of the above problems, the utility model provides a heat pump dryer, which effectively solves the problems pointed out in the background technology.

[0007] The technical solution adopted by the utility model is:

[0008] A heat pump dryer comprises a heat pump dryer body, wherein at least two layers of storage plates are fixed inside the heat pump dryer body, a cleaning wheel is provided at the bottom of the storage plate, and the cleaning wheel is driven by a driving mechanism.

[0009] Preferably, a rotating shaft is fixed to the axis of the cleaning wheel, and the rotating shaft extends out of both ends of the cleaning wheel, and sliding grooves matching the rotating shaft are provided on the left and right inner walls of the heat pump dryer body.

[0010] The cleaning wheel can be moved laterally through the rotating shaft and the slide grooves on both sides.

[0011] Preferably, an extruded shell is fixed to the bottom of one side of the storage plate, and an overflow groove is provided on the inner wall of the extruded shell.

[0012] The inner wall of the extrusion shell is an arc-shaped structure matching the cleaning wheel. When the cleaning wheel enters the extrusion shell, the water on the cleaning wheel can be squeezed out by the extrusion of the extrusion shell and discharged through the overflow groove.

[0013] Preferably, a scraper is fixed to the top of the extruded shell on a side facing the center of the storage plate.

[0014] The scraper can clean the impurities on the surface of the cleaning wheel.

[0015] Preferably, the heat pump dryer body is provided with a vertically arranged support rod in the inner cavity of the right side wall, the support rod is provided with a plurality of longitudinally arranged shaft holes, the shaft holes match the shafts on the cleaning wheel, and a top block is fixed to the side of the support rod for pushing the support rod to move laterally.

[0016] All cleaning wheels are moved synchronously by the support rod, thereby making the control of the reciprocating motion easier.

[0017] Preferably, the driving mechanism includes a reciprocating screw, an upper threaded sleeve and a lower threaded sleeve matchingly arranged at the upper and lower parts of the reciprocating screw, an upper connecting rod is provided between the upper threaded sleeve and the top block, and the upper connecting rod is rotatably connected to both the upper threaded sleeve and the top block, a lower connecting rod is provided between the lower threaded sleeve and the top block, and the lower connecting rod is rotatably connected to both the lower threaded sleeve and the top block.

[0018] Preferably, the spiral directions of the upper and lower parts of the reciprocating screw are opposite, the spiral direction of the upper part matches the upper threaded sleeve, and the spiral direction of the lower part matches the lower threaded sleeve.

[0019] The bidirectional reciprocating screw can stably drive the top block back and forth.

[0020] Preferably, a motor is provided at one end of the reciprocating screw rod for driving the reciprocating rotation of the reciprocating screw rod.

[0021] Preferably, a gear is fixed to the left end of the rotating shaft, and a rack matching the gear is fixed in the inner cavity of the left side wall of the heat pump dryer body, and the rack is transversely fixed along the slide groove.

[0022] When the rotating shaft slides laterally along the slide groove, the rotating shaft can rotate through the meshing of the gear rack, and the rotating cleaning wheel can produce a better adsorption effect on the bottom of the storage plate.

[0023] The utility model arranges an adsorption mechanism, namely a cleaning wheel, at the bottom of the storage plate, and utilizes a motor to drive the cleaning wheel to move back and forth laterally. While moving, the cleaning wheel rotates by meshing of a gear rack, thereby adsorbing and cleaning water droplets at the bottom of the storage plate, thereby preventing the presence of water droplets from affecting the drying efficiency of the device. At the same time, the utility model arranges a scraping mechanism. When the cleaning wheel moves to the inside of an extrusion shell, the extrusion shell squeezes the sponge on the cleaning wheel, squeezes out the water in the sponge, and flows out from the overflow groove, thereby preventing the water from affecting the drying efficiency of the dryer, and the arrangement of the scraper cleans the impurities on the cleaning wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is the overall structural view of the utility model;

[0025] Figure 2 It is a cross-sectional view of the overall structure of the utility model;

[0026] Figure 3 for Figure 2 The enlarged structural diagram of the middle A part;

[0027] Figure 4 for Figure 2 A schematic diagram of the enlarged structure of the middle B part;

[0028] Figure 5 It is a cross-sectional view of the inner cavity of the left side wall of the utility model;

[0029] Figure 6 for Figure 5 The enlarged structural diagram of the middle C part;

[0030] Figure 7 It is a cross-sectional view of the inner cavity of the right side wall of the utility model;

[0031] Figure 8 for Figure 7 Schematic diagram of the enlarged structure of part D in the middle. DETAILED DESCRIPTION

[0032] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0033] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0034] In addition, in the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0035] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "plurality" means two or more, unless otherwise clearly defined.

[0036] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0038] The present invention is further described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0039] Example 1

[0040] like Figure 1-8As shown, a heat pump dryer comprises a heat pump dryer body 1, at least two layers of storage plates 2 are fixed inside the heat pump dryer body 1, a cleaning wheel 3 is provided at the bottom of the storage plate 2, a sponge is provided on the surface of the cleaning wheel 3, the sponge has a strong water absorption effect, and the cleaning wheel 3 is driven by a driving mechanism.

[0041] A rotating shaft 4 is fixed to the axis of the cleaning wheel 3, and the rotating shaft 4 extends out of the two ends of the cleaning wheel 3. Slide grooves 5 matching the rotating shaft are provided on the inner walls on the left and right sides of the heat pump dryer body 1. The height of the slide groove 5 is greater than the outer diameter of the rotating shaft 4 and smaller than the outer diameter of the cleaning wheel 3, thereby ensuring that the two ends of the rotating shaft 4 slide horizontally in the slide groove 5.

[0042] An extrusion shell 6 is fixed to the bottom of one side of the storage plate 2, and an overflow groove 7 is opened on the inner wall of the extrusion shell 6. The other end of the overflow groove 7 is directly connected to the drain port of the heat pump dryer body 1. Since this structure is a conventional means, the utility model will not be described in detail, and it is not drawn in the accompanying drawings. The inner wall of the extrusion shell 6 is an arc-shaped structure and matches the cleaning wheel 3. When the cleaning wheel 3 enters the extrusion shell 6, water can be squeezed out of the cleaning wheel 3.

[0043] A scraper 8 is fixed to the top of the extrusion shell 6 on one side facing the center of the storage plate 2 . The scraper 8 extends downward from the inner wall of the extrusion shell 6 to scrape and clean the impurities on the outside of the cleaning wheel 3 .

[0044] The heat pump dryer body 1 is provided with a vertically arranged support rod 9 in the inner cavity of the right side wall, and a slideway (not shown in the figure) matching the support rod 9 is provided in the heat pump dryer body 1 to facilitate the lateral sliding of the support rod 9. The support rod 9 is provided with a plurality of longitudinally arranged shaft holes 10, and the shaft holes 10 match the shaft 4 on the cleaning wheel 3. A top block 11 for pushing the support rod 9 to move lateraly is fixed to the side of the support rod 9.

[0045] The driving mechanism includes a reciprocating screw 12, which is longitudinally arranged in the inner cavity of the side wall of the heat pump dryer body 1 and is rotatably connected to the heat pump dryer body 1. An upper threaded sleeve 13 and a lower threaded sleeve 14 are matched and arranged at the upper and lower parts of the reciprocating screw 12. An upper connecting rod 15 is arranged between the upper threaded sleeve 13 and the top block 11. The upper connecting rod 15 is rotatably connected to both the upper threaded sleeve 13 and the top block 11. A lower connecting rod 16 is arranged between the lower threaded sleeve 14 and the top block 11. The lower connecting rod 16 is rotatably connected to both the lower threaded sleeve 14 and the top block 11.

[0046] The upper and lower parts of the reciprocating screw 12 have opposite spiral directions. The spiral direction of the upper part matches the upper threaded sleeve 13, and the thread direction of the lower part matches the lower threaded sleeve 14. In this way, the upper threaded sleeve 13 and the lower threaded sleeve 14 can move toward and relative to each other. When the top block 11 is pushed away from the reciprocating screw 12, the upper threaded sleeve 13 and the lower threaded sleeve 14 move toward each other. When the top block 11 is pushed close to the reciprocating screw 12, the upper threaded sleeve 13 and the lower threaded sleeve 14 move relative to each other.

[0047] A motor 17 is provided at one end of the reciprocating screw rod 12 for driving the reciprocating rotation of the reciprocating screw rod 12 .

[0048] A gear 18 is fixed to the left end of the rotating shaft 4, and the gear 18 is located in the inner cavity of the left side wall of the heat pump dryer body 1. A rack 19 matching the gear 18 is fixed in the inner cavity of the left side wall of the heat pump dryer body 1, and the rack 19 is laterally fixed along the slide groove 5.

[0049] The working principle of this utility model:

[0050] When the Chinese medicinal materials are placed on the storage plate 2 and the dryer is started for drying, the moisture in the medicinal materials condenses under the storage plate 2. At this time, the motor 17 is started, so that the output shaft of the motor 17 drives the reciprocating screw 12 to rotate. The reciprocating screw 12 is a bidirectional reciprocating screw. Therefore, the upper threaded sleeve 13 and the lower threaded sleeve 14 connected by the spiral transmission on the outer surface of the reciprocating screw 12 will continuously switch between opposite motion and relative motion. The upper threaded sleeve 13 carries the upper connecting rod 15 to move, and the lower threaded sleeve 14 carries the lower connecting rod 16 to move. The upper connecting rod 15 and the lower connecting rod 16 simultaneously drive the top block 11 to move horizontally, so the support rod 9 will be on the side of the heat pump dryer body 1 The inner wall cavity continuously reciprocates and drives the rotating shaft 4 to move laterally. The cleaning wheel 3 on the rotating shaft 4 moves synchronously. Since the gear 18 and the rack 19 at the end of the rotating shaft 4 are in meshing state, the meshing action of the rack 19 and the gear 18 will drive the rotating shaft 4 to rotate. Therefore, the rotating shaft 4 will drive the cleaning wheel 3 to move laterally while rotating to absorb the water droplets condensed at the bottom of the storage plate 2. When the cleaning wheel 3 moves to the inside of the extrusion shell 6, the extrusion shell 6 will squeeze the sponge on the cleaning wheel 3, so that the water absorbed in the sponge flows out of the equipment from the overflow groove 7. At the same time, the scraper 8 on the extrusion shell 6 will scrape and clean the cleaning wheel 3.

[0051] Finally, it should be noted that the above examples are only specific embodiments of the present invention. Obviously, the present invention is not limited to the above embodiments, and there are many variations. All variations that can be directly derived or associated with the content disclosed by a person skilled in the art from the present invention should be considered as the protection scope of the present invention.

Claims

1. A heat pump dryer, characterized in that: It comprises a heat pump dryer body (1), wherein at least two layers of storage plates (2) are fixed inside the heat pump dryer body (1), a cleaning wheel (3) is provided at the bottom of the storage plate (2), and the cleaning wheel (3) is driven by a driving mechanism.

2. A heat pump dryer according to claim 1, characterized in that: A rotating shaft (4) is fixed to the axis of the cleaning wheel (3), and the rotating shaft (4) extends out of both ends of the cleaning wheel (3). Slide grooves (5) matching the rotating shaft are provided on the inner walls on both left and right sides of the heat pump dryer body (1), and the height of the slide grooves (5) is greater than the outer diameter of the rotating shaft (4) and less than the outer diameter of the cleaning wheel (3).

3. A heat pump dryer according to claim 1, characterized in that: An extrusion shell (6) is fixed to the bottom of one side of the storage plate (2), an overflow groove (7) is provided on the inner wall of the extrusion shell (6), and the inner wall of the extrusion shell (6) is in an arc-shaped structure and matches the cleaning wheel (3).

4. A heat pump dryer according to claim 3, characterized in that: A scraper (8) is fixed to the top of the extruded shell (6) on a side facing the center of the storage plate (2), and the scraper (8) extends downwardly out of the inner wall of the extruded shell (6).

5. A heat pump dryer according to claim 2, characterized in that: The heat pump dryer body (1) is provided with a vertically arranged support rod (9) in the inner cavity of the right side wall, the support rod (9) is provided with a plurality of rotating shaft holes (10) arranged in the longitudinal direction, the rotating shaft holes (10) match the rotating shaft (4) on the cleaning wheel (3), and a top block (11) is fixed to the side of the support rod (9) for pushing the support rod (9) to move horizontally.

6. A heat pump dryer according to claim 5, characterized in that: The driving mechanism comprises a reciprocating screw (12), an upper threaded sleeve (13) and a lower threaded sleeve (14) matched with each other at the upper and lower parts of the reciprocating screw (12); an upper connecting rod (15) is arranged between the upper threaded sleeve (13) and the top block (11); the upper connecting rod (15) is rotatably connected to both the upper threaded sleeve (13) and the top block (11); a lower connecting rod (16) is arranged between the lower threaded sleeve (14) and the top block (11); the lower connecting rod (16) is rotatably connected to both the lower threaded sleeve (14) and the top block (11).

7. A heat pump dryer according to claim 6, characterized in that: The upper and lower parts of the reciprocating screw rod (12) have opposite spiral directions, the spiral direction of the upper part matches the upper threaded sleeve (13), and the spiral direction of the lower part matches the lower threaded sleeve (14).

8. A heat pump dryer according to claim 7, characterized in that: A motor (17) is provided at one end of the reciprocating screw rod (12) for driving the reciprocating screw rod (12) to rotate back and forth.

9. The heat pump dryer according to claim 5, characterized in that: A gear (18) is fixed to the left end of the rotating shaft (4), and a rack (19) matching the gear (18) is fixed in the inner cavity of the left side wall of the heat pump dryer body (1), and the rack (19) is fixed transversely along the slide groove (5).

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