A drum mechanism for a condensation dryer

Abstract

The present invention discloses a drum mechanism for a condensation dryer, which relates to the technical field of condensation dryers. The drum mechanism includes a drum, an arc-shaped rod, a plurality of support units and a swing assembly. The arc-shaped rod is rotatably connected to a fixed frame through a rotating shaft. Each support unit is arranged on the arc-shaped rod side by side along the circumferential direction of the arc-shaped rod and is used for rolling and clamping to support the drum. The swing assembly has a first working position for keeping the axial direction of the drum horizontal and a second working position for receiving the rotational driving force of the drum to make the arc-shaped rod swing back and forth around the rotating shaft. In the present invention, under the working condition of condensing and drying clothes, the rotation speed of the drum is relatively low, and the drum is in the second working position where it can swing back and forth around the rotating shaft. At this time, the drum performs a compound motion of rotating around its own axis and swinging back and forth around the rotating shaft, which can fully turn the clothes, especially the front and back directions of the clothes and the flipping and adjustment of the front and back rows of clothes, so that the clothes can fully contact the condensing air flow, improve the evaporation speed of the moisture in the clothes, and shorten the drying time of the clothes.

Description

Technical Field

[0001] The present invention relates to the technical field of condensation clothes dryers, and specifically to a drum mechanism for a condensation clothes dryer. Background Art

[0002] There is a condenser inside a condensation clothes dryer. The humid hot air is cooled by the condenser, and the water vapor is liquefied when encountering cold and discharged through a drain pipe, and the condensed air is used to dry the clothes. The condensation clothes dryer has the function of integrating dehydration and drying, that is, the drum first rotates at a very high speed to dehydrate and spin-dry the clothes, and then rotates back and forth at a slower speed to tumble and condense-dry the clothes.

[0003] In the prior art, such as patents with publication numbers CN117144645A, CN220034984U, CN219908304U, etc., the drum is usually rotatably arranged on the horizontal axis in the front-rear direction inside the housing of the clothes dryer. When the drum rotates, it is very stable and the eccentricity range is extremely small. This is beneficial to noise reduction when the drum rotates and the stability when the drum rotates at a high speed for clothes dehydration. However, there are also some deficiencies. For example, during condensation drying, the drum can only rely on smoothly rotating forward and backward at a low speed to tumble the clothes, and the turning and unfolding effect on the clothes is not very ideal, especially for the front-rear direction of the clothes or the front-back row of clothes, which is not easy to turn and adjust positions. This also makes it necessary to set a longer drying time to achieve a better drying effect. Summary of the Invention

[0004] The purpose of the present invention is to provide a drum mechanism for a condensation clothes dryer to solve the above deficiencies in the prior art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A drum mechanism for a condensation clothes dryer, including a drum; an arc-shaped rod rotatably connected to a fixed frame of the condensation clothes dryer through a rotating shaft; a plurality of support units arranged side by side along the circumferential direction of the arc-shaped rod for rolling and clamping to support the drum; a swing assembly having a first position for keeping the axial direction of the drum horizontal and a second position for receiving the rotational driving force of the drum to make the arc-shaped rod swing back and forth around the rotating shaft.

[0006] Further, the support unit includes: a connecting rod fixedly connected to the arc-shaped rod; two rollers respectively rotatably connected to both ends of the connecting rod, and the two rollers are in rolling cooperation with the front and rear ends on the circumferential side of the drum.

[0007] Further, two circular raceways are provided on the circumferential side of the drum, and the two raceways are in rolling cooperation with the two rollers of the support unit in a one-to-one correspondence.

[0008] Further, there are 3-6 support units, and each support unit is distributed in a circumferential array along the circumferential direction of the drum.

[0009] Further, the swing assembly includes: a guide rod fixedly connected to the fixed frame; a sliding seat slidably connected to the guide rod in the front-rear direction; a flat shaft rod, one end of which is fixedly connected to the sliding seat, and the other end of which is inserted and fitted into a horn-shaped hole formed in the arc-shaped rod; an annular plate coaxially fixedly connected to the circumferential side of the drum, and a wave-shaped guide groove is formed in a circle along the circumferential direction thereof; an elastic telescopic rod, one end of which is fixedly connected to the sliding seat, and the other end of which is slidably abutted and fitted with the wave-shaped guide groove through an abutting portion, and the connection line between the position where the abutting portion contacts the wave-shaped guide groove and the axis of the drum is perpendicular to the axis of the rotating shaft; a driving unit for driving the sliding seat to slide along the guide rod.

[0010] Further, the abutting portion is in the shape of a cylinder with an axis parallel to the sliding direction of the sliding seat, the abutting portion is fixedly connected to the end of the elastic telescopic rod or the abutting portion is rotatably connected to the end of the elastic telescopic rod along its axis, and the diameter of the abutting portion is smaller than the width of the wave-shaped guide groove.

[0011] Further, the abutting portion is in the shape of a cylinder with an axis parallel to the sliding direction of the sliding seat, the abutting portion is rotatably connected to the end of the elastic telescopic rod through a rotating shaft, the rotating shaft is parallel to the rotating shaft, and the diameter of the abutting portion is adapted to the width of the wave-shaped guide groove.

[0012] Further, the elastic telescopic rod includes a first rod body, a second rod body and a compression spring. The first rod body and the second rod body are slidably connected. One end of the compression spring abuts against the first rod body, and the other end abuts against the second rod body. One of the first rod body and the second rod body is fixedly connected to the sliding seat, and the other is connected to the abutting portion.

[0013] Further, the driving unit is an electric push rod, a hydraulic cylinder or a cylinder.

[0014] In the above technical solution, a drum mechanism for a condensation dryer provided by the present invention sets a swing assembly to enable the drum to have two working state positions of axially maintaining horizontal and reciprocally swinging around the rotating shaft to adapt to different working conditions of the drum. In the working condition of condensing and drying clothes, the drum rotates at a low speed and has a great task of turning over clothes. The drum is in the second working state position where it can reciprocally swing around the rotating shaft. At this time, the drum runs a compound motion of rotating around its own axis and reciprocally swinging around the rotating shaft, which can fully turn over clothes, especially the front-back direction of clothes and the turning and adjustment of the front-back row of clothes, so that the clothes can fully contact the condensing air flow, improve the evaporation speed of the moisture in the clothes, and shorten the drying time of the clothes; and, in the working condition of dehydrating and drying clothes, the drum has a high-speed rotation requirement, and the drum is in the first working state position where the axis is kept horizontal, so that the drum only rotates around its own axis when rotating at a high speed for dehydration, maintaining extremely high stability, which is beneficial to improving the service life of the drum support structure and the motor drive structure. Description of the Drawings

[0015] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the accompanying drawings required in the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other accompanying drawings can also be obtained based on these drawings.

[0016] Figure 1 Structural schematic provided by the embodiment of the present invention Figure Ⅰ ;

[0017] Figure 2 Provided by the embodiment of the present invention Figure 1 Enlarged view of the structure at position A in

[0018] Figure 3 Structural schematic provided by the embodiment of the present invention Figure Ⅱ ;

[0019] Figure 4 Provided by the embodiment of the present invention Figure 3 Enlarged view of structure B in

[0020] Figure 5 Structural schematic provided by the embodiment of the present invention Figure Ⅲ ;

[0021] Figure 6 Provided by the embodiment of the present invention Figure 5 Enlarged view of structure C in

[0022] Figure 7 Structural schematic diagram of the swing assembly in the second working position provided by the embodiment of the present invention;

[0023] Figure 8 Structural schematic diagram of the swing assembly in the first working position provided by the embodiment of the present invention;

[0024] Figure 9 Structural schematic diagram of the connection between the abutting portion and the elastic telescopic rod provided by the embodiment of the present invention;

[0025] Figure 10 Structural schematic diagram of the connection between the arc-shaped rod and each support unit provided by the embodiment of the present invention.

[0026] Explanation of reference numerals:

[0027] 1, drum; 2, arc-shaped rod; 2.1, horn-shaped hole; 3, support unit; 3.1, connecting rod; 3.2, roller; 4, raceway; 5, swing assembly; 5.1, guide rod; 5.2, sliding seat; 5.3, flat shaft rod; 5.4, annular plate; 5.5, elastic telescopic rod; 5.6, abutting portion; 5.7, driving unit; 5.8, corrugated guide groove; 6, rotating shaft. Detailed implementation manners

[0028] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0029] See also Figure 1-9 , the drum 1 mechanism for a condensing dryer provided by an embodiment of the present invention includes a drum 1, an arcuate rod 2, a plurality of support units 3 and a swing assembly 5, wherein the arcuate rod 2 is rotatably connected to the fixed frame of the condensing dryer through a rotating shaft 6; each support unit 3 is arranged side by side on the arcuate rod 2 in the annular direction of the arcuate rod 2 for rolling and clamping the support drum 1. Specifically, the number of support units is no less than 3. Preferably, the support units 3 have 3-6, and each support unit 3 is distributed in a circumferential array along the circumference of the drum 1; the swing assembly 5 has a first station that keeps the drum 1 horizontal axially and a second station that receives the rotational driving force of the drum 1 to cause the arcuate rod 2 to swing reciprocatingly about the rotational shaft 6.

[0030] In the above technical scheme, the present invention provides a drum 1 mechanism for a condensing clothes dryer, in which a swinging assembly 5 is arranged so that the drum 1 has two working positions of maintaining horizontal axis and reciprocating swing around the rotating shaft 6, so as to adapt to different working conditions of the drum 1. Under the working condition of condensing and drying clothes, the rotation speed of the drum 1 is relatively low, and there is a great task of turning clothes. The drum 1 is in the second working position capable of reciprocating swing around the rotating shaft 6. At this time, the drum 1 performs a composite motion of self-rotation around its axis and reciprocating swing around the rotating shaft 6, which can fully turn clothes, especially the front and back directions of clothes and the turning and positioning of the front and back rows of clothes, so that the clothes are fully contacted with the condensing airflow, the evaporation rate of the water in the clothes is increased, and the drying time of the clothes is shortened; and, under the working condition of dehydrating and drying clothes, the drum 1 has a high rotation speed requirement, and the drum 1 is in the first working position of maintaining horizontal axis, so that the drum 1 only maintains self-rotation around its axis during high-speed rotation and dehydration, and maintains extremely high stability, which is conducive to improving the practical life of the drum 1 support structure and the motor transmission structure.

[0031] As a preferred technical solution of the present invention, each support unit 3 includes a connecting rod 3.1 and two rollers 3.2, wherein the connecting rod 3.1 is fixedly connected to the arc rod 2, and the two rollers 3.2 are respectively rotatably connected to the two ends of the connecting rod 3.1, and the two rollers 3.2 are rollingly matched with the front and rear ends of the peripheral side of the drum 1. Specifically, two circular rollers 4 are provided on the peripheral side of the drum 1, and the two rollers 4 are rollingly matched with the two rollers 3.2 of the support unit 3 in a one-to-one correspondence. The rollers 3.2 at the front end of each support unit 3 are all located in the slideway at the front end of the drum 1, and the rollers 3.2 at the rear end are all located in the slideway at the rear end of the drum 1. The support unit 3 and the drum 1 are stably matched, and the rolling clamping support effect on the drum 1 is good.

[0032] As a preferred technical solution of the present invention, the swing assembly 5 includes a guide rod 5.1, a sliding seat 5.2, a flat shaft rod 5.3, an annular plate 5.4, an elastic telescopic rod 5.5 and a driving unit 5.7. Among them, the guide rod 5.1 is fixedly connected to the fixed frame, the sliding seat 5.2 is slidably connected to the guide rod 5.1 in the front-back direction, one end of the flat shaft rod 5.3 is fixedly connected to the sliding seat 5.2, and the other end of the flat shaft rod 5.3 is inserted and fitted with a horn-shaped hole 2.1 formed in the arc-shaped rod 2. The horn mouth of the horn-shaped hole 2.1 faces the flat shaft rod 5.3. The annular plate 5.4 is coaxially fixedly connected to the circumference of the drum 1. A circle of waveform guide grooves 5.8 is formed in the annular plate 5.4 along the circumferential direction. One end of the elastic telescopic rod 5.5 is fixedly connected to the sliding seat 5.2, and the other end is slidably abutted and fitted with the waveform guide groove 5.8 through an abutting portion 5.6. The connection line between the position where the abutting portion 5.6 contacts the waveform guide groove 5.8 and the axis of the drum 1 is perpendicular to the axis of the rotating shaft 6, that is, the plane passing through the axis of the drum 1 where the abutting portion 5.6 contacts the waveform guide groove 5.8 is perpendicular to the axis of the rotating shaft 6. The driving unit 5.7 is used to drive the sliding seat 5.2 to slide along the guide rod 5.1.

[0033] In the above technical solution, when the driving unit 5.7 drives the sliding seat 5.2 to slide towards the arc-shaped rod 2, on the one hand, the sliding seat 5.2 causes the abutting portion 5.6 to withdraw from the corrugated guide groove 5.8, and on the other hand, regardless of whether the axis of the drum 1 is in a horizontal state at this time, the sliding seat 5.2 can make the flat shaft rod 5.3 insert into the bell mouth and pass through the bell hole 2.1. The bell hole 2.1 has a cylindrical groove connecting the bell mouth, and the diameter of the cylindrical groove is adapted to the straight line of the flat shaft rod 5.3 (the minimum interference fit is sufficient). At this time, the axis of the cylindrical groove is horizontal in the front-rear direction, that is, the cylindrical groove is coaxial with the flat shaft rod 5.3. Thus, when the flat shaft rod 5.3 is fixed, the arc-shaped rod 2 and the drum 1 cannot swing relative to the rotating shaft 6, so that the drum 1 maintains a stable state of only being able to rotate around its own axis, which is suitable for high-speed dehydration and drying conditions. When the driving unit 5.7 drives the sliding seat 5.2 to slide towards the annular plate 5.4, on the one hand, the sliding seat 5.2 causes the flat shaft rod 5.3 to withdraw from the bell hole 2.1, and on the other hand, the abutting portion 5.6 abuts against the annular plate 5.4 or the corrugated guide groove 5.8 through the telescopic rod. If the abutting portion 5.6 is exactly aligned with the corrugated guide groove 5.8 at this time, the sliding seat 5.2 slides to directly make the abutting portion 5.6 enter the corrugated guide groove 5.8. If the abutting portion 5.6 is not aligned with the corrugated guide groove 5.8 at this time, the sliding seat 5.2 slides to make the abutting portion 5.6 abut against the surface of the annular plate 5.4, and the elastic telescopic rod 5.5 will contract for adaptation. After the drum 1 starts to rotate along its own axis or the drum 1 is already rotating along its own axis, the drum 1 will drive the annular plate 5.4 to rotate together. The abutting portion 5.6 and the surface of the annular plate 5.4 have relative sliding, so that at the moment when the corrugated guide groove 5.8 rotates and aligns with the abutting portion 5.6, the elastic elongation of the elastic telescopic rod 5.5 makes the abutting portion 5.6 quickly enter the corrugated guide groove 5.8; then, the drum 1 rotating along its own axis and the annular rod cause relative movement between the corrugated guide groove 5.8 and the abutting portion 5.6, so that the inner and outer side walls of the abutting portion 5.6 and the corrugated guide groove 5.8 are in mutual abutting cooperation, so that the drum 1 swings relative to the rotating shaft 6, and the swing amplitude is preferably controlled within 3°. The drum 1 has a combined motion state of rotating around its axis and swinging around the rotating shaft 6, which is suitable for the working condition of condensation drying. During this period, the elastic elongation of the elastic telescopic rod 5.5 makes the abutting portion 5.6 always keep abutting against the bottom of the corrugated guide groove 5.8 to prevent the abutting portion 5.6 from disengaging from the corrugated guide groove 5.8 when the swing amplitude of the drum 1 increases.

[0034] As a further preferred technical solution, the abutting portion 5.6 is cylindrical with its axis parallel to the sliding direction of the sliding seat 5.2. The abutting portion 5.6 is fixedly connected to the end of the elastic telescopic rod 5.5 or is rotatably connected to the end of the elastic telescopic rod 5.5 along its axis. The diameter of the abutting portion 5.6 is slightly smaller than the width of the corrugated guide groove 5.8, so as to adapt to the swing amplitude of the drum 1 around the rotating shaft 6. The abutting portion 5.6 is cylindrical, with its axis parallel to the sliding direction of the sliding seat 5.2. The abutting portion 5.6 is rotatably connected to the end of the elastic telescopic rod 5.5 through a rotating shaft, and the rotating shaft is parallel to the rotating shaft 6. A limiting block for restricting the rotation amplitude of the abutting portion 5.6 is provided at the end of the elastic telescopic rod 5.5. The diameter of the abutting portion 5.6 is adapted to the width of the corrugated guide groove 5.8 (the minimum interference fit is sufficient), so that the inner and outer side walls of the abutting portion 5.6 and the corrugated guide groove 5.8 can be in sliding contact and abutting tightly, and the vibration and noise during the cooperation between the two can be reduced. The elastic telescopic rod 5.5 includes a first rod body, a second rod body and a compression spring. The first rod body and the second rod body are slidably connected. One end of the compression spring abuts against the first rod body, and the other end abuts against the second rod body. One of the first rod body and the second rod body is fixedly connected to the sliding seat 5.2, and the other is connected to the abutting portion 5.6. The driving unit 5.7 is an electric push rod, a hydraulic cylinder or a pneumatic cylinder, or other mechanisms in the prior art that can output linear reciprocating motion.

[0035] Only some exemplary embodiments of the present invention have been described by way of illustration above. Undoubtedly, for those of ordinary skill in the art, without departing from the spirit and scope of the present invention, the described embodiments can be modified in various different ways. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the protection scope of the claims of the present invention.

Claims

1. A drum mechanism for a condensation dryer, comprising a drum, characterized in that, Further included are: An arc-shaped rod rotatably connected to the fixed frame of the condensation dryer through a rotating shaft; A plurality of support units arranged side by side along the circumferential direction of the arc-shaped rod on the arc-shaped rod for rolling and clamping to support the drum; A swing assembly having a first position for keeping the axial direction of the drum horizontal and a second position for receiving the rotational driving force of the drum to cause the arc-shaped rod to reciprocally swing around the rotating shaft; The swing assembly includes: A guide rod fixedly connected to the fixed frame; A sliding seat slidably connected to the guide rod in the front-rear direction; A flat shaft rod, one end of which is fixedly connected to the sliding seat, and the other end of which is inserted and matched with a trumpet-shaped hole opened on the arc-shaped rod; An annular plate coaxially and fixedly connected to the circumferential side of the drum, and a circle of waveform guide grooves are opened on it along the circumferential direction; An elastic telescopic rod, one end of which is fixedly connected to the sliding seat, and the other end of which is slidably abutted and matched with the waveform guide groove through an abutting portion, and the connection line between the position where the abutting portion contacts the waveform guide groove and the axis of the drum is perpendicular to the axis of the rotating shaft; A driving unit for driving the sliding seat to slide along the guide rod.

2. The drum mechanism for a condensing clothes dryer according to claim 1, characterized in that, The support unit includes: A connecting rod fixedly connected to the arc-shaped rod; Two rollers respectively rotatably connected to both ends of the connecting rod, and the two rollers are in rolling cooperation with the front and rear ends of the circumferential side of the drum.

3. The drum mechanism for a condensation dryer according to claim 2, wherein, Two circular raceways are arranged on the circumferential side surface of the drum, and the two raceways are in rolling cooperation with the two rollers of the support unit in a one-to-one correspondence.

4. A drum mechanism for a condensation dryer according to claim 1, characterized in that, There are 3-6 support units, and each support unit is circumferentially and arrayed along the circumferential direction of the drum.

5. A drum mechanism for a condensation dryer, characterized in that, The abutting portion is cylindrical with an axis parallel to the sliding direction of the sliding seat, and the abutting portion is fixedly connected to the end of the elastic telescopic rod or the abutting portion is rotatably connected to the end of the elastic telescopic rod along its axis, and the diameter of the abutting portion is smaller than the width of the waveform guide groove.

6. The drum mechanism for a condensation dryer according to claim 1, characterized in that, The abutting portion is cylindrical with an axis parallel to the sliding direction of the sliding seat, and the abutting portion is rotatably connected to the end of the elastic telescopic rod through a rotating shaft, the rotating shaft is parallel to the rotating shaft, and the diameter of the abutting portion is adapted to the width of the waveform guide groove.

7. The drum mechanism for a condensation dryer according to claim 1, characterized in that, The elastic telescopic rod includes a first rod body, a second rod body and a compression spring. The first rod body and the second rod body are slidably connected, one end of the compression spring abuts against the first rod body, the other end abuts against the second rod body, and one of the first rod body and the second rod body is fixedly connected to the sliding seat, and the other is connected to the abutting portion.

8. A drum mechanism for a condensation dryer according to claim 1, characterized in that, The driving unit is an electric push rod, a hydraulic cylinder or a cylinder.

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