A heat pump dryer

Abstract

The present invention discloses a novel heat pump dryer, which relates to the technical field of dryers; it includes a housing and a drum rotatably installed inside the housing, and a clamping mechanism is installed on the drum. The clamping mechanism has a clamping state for clamping the clothes in the drum and a normal state without clamping the clothes. A control mechanism is used to switch the clamping state and the normal state of the clamping mechanism. The novel heat pump dryer provided by the present invention, during the process of the drum driving the wet clothes to tumble, clamps the clothes through the clamping mechanism, so that a relative displacement is formed between the clamped clothes and other clothes, prompting the clothes that are stuck together to separate, greatly reducing the occurrence of clothes entanglement; if the clamping mechanism clamps small clothes, the small clothes can be directly separated from other clothes, and if the clamping mechanism clamps large clothes, the large clothes can be unfolded to promote the separation of the small clothes wrapped in the large clothes.

Description

Technical Field

[0001] The present invention relates to the technical field of clothes dryers, and particularly to a heat pump clothes dryer. Background Art

[0002] A heat pump clothes dryer utilizes a heat pump evaporator to absorb heat energy from the outside air, transfers the energy to the drum through a compressor, and the clothes in the drum transfer heat through circulating hot air to evaporate moisture. After the evaporated water vapor forms condensed water, it flows out to achieve the purpose of drying clothes. During the working process of the clothes dryer, the drum inside it rotates continuously driven by a motor. The wet clothes attached to the inner wall of the drum are driven by the drum to rise a certain distance and then fall under the action of gravity. This process of rising and falling causes the wet clothes to flip. The flipped clothes are easily entangled with each other when they are in contact, and the inside of the entangled clothes cannot be effectively dried, which affects the drying effect.

[0003] Chinese Utility Model Patent with Publication No. CN216040275U discloses a lifting rib and a clothes processing device, including a bottom wall, a top wall, a first side wall and a second side wall. Among them, the first side wall and the second side wall are connected between the bottom wall and the top wall. Among them, the first side wall has a first recessed portion recessed in a first direction to form a structure similar to a V shape, and / or the second side wall has a second recessed portion and a third recessed portion recessed in the opposite direction of the first direction to form a structure similar to a W shape.

[0004] In the prior art including the above patent, the main method is to increase lifting ribs on the inner wall of the drum. In actual use, the effect of avoiding clothes entanglement by this method is limited. Especially when drying large clothes and small clothes together, for example, drying a coat and underwear together, the large clothes will wrap the small clothes, and it is very difficult to avoid the entanglement of large clothes and small clothes. Summary of the Invention

[0005] The purpose of the present invention is to provide a heat pump clothes dryer to solve the above deficiencies in the prior art.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A heat pump clothes dryer includes a housing and a drum rotatably installed inside the housing, and a clamping mechanism is installed on the drum.

[0007] The clamping mechanism has a clamping state for clamping the clothes in the drum and a normal state for not clamping the clothes.

[0008] A control mechanism is used to switch the clamping state and the normal state of the clamping mechanism.

[0009] As a preferred technical solution of the present invention, the clamping mechanism includes a clamping seat installed on the inner wall of the drum, and a clamping block is movably installed on the clamping seat.

[0010] As a preferred technical solution of the present invention, the number of clamping blocks is two and they are in the shape of cams. A rotating shaft fixedly connected to the corresponding clamping block is rotatably installed on the clamping seat at the position corresponding to each clamping block.

[0011] As a preferred technical solution of the present invention, the control mechanism includes a gear fixedly sleeved on the rotating shaft, and a rack meshing with the gear is slidably installed on the clamping seat.

[0012] As a preferred technical solution of the present invention, a control rod penetrating through the clamping seat and the drum is fixedly installed at the end of the rack. The control mechanism further includes an adjustment unit for adjusting the position of the control rod.

[0013] As a preferred technical solution of the present invention, there are two gears sleeved on the rotating shaft, and the two gears are arranged on both sides of the corresponding clamping block; the number of control rods is two, and the two control rods are fixedly connected.

[0014] As a preferred technical solution of the present invention, the adjustment unit includes a fixed cylinder fixedly installed between the housing and the drum and coinciding with the axis of the drum; an adjustment ring coinciding with its axis is installed on the inner wall of the fixed cylinder. A guide groove is formed on the surface of the adjustment ring facing the control rod, and a guide rod cooperating with the guide groove is installed on the control rod.

[0015] As a preferred technical solution of the present invention, the guide rod is a round rod and is rotatably matched with the control rod; a roller for supporting and limiting the drum is installed on the inner wall of the fixed cylinder, and a limit ring cooperating with the roller is fixedly installed on the outer wall of the drum.

[0016] As a preferred technical solution of the present invention, the clamping seat is slidably matched with the inner wall of the drum along the axial direction of the drum, and the adjustment ring is slidably matched with the inner wall of the fixed cylinder along the axial direction of the fixed cylinder; the heat pump clothes dryer further includes a driving mechanism for driving the clamping seat and the adjustment ring to move reciprocally.

[0017] As a preferred technical solution of the present invention, the driving mechanism includes an elastic telescopic rod fixedly installed on the inner wall of the drum along the axial direction of the drum, and an electric telescopic rod for driving the adjustment ring to move is fixedly installed on the inner wall of the fixed cylinder along its axial direction.

[0018] In the above technical solution, a heat pump dryer provided by the present invention clamps clothes through a clamping mechanism during the process of the drum driving the wet clothes to tumble, so that a relative displacement is formed between the clamped clothes and other clothes, prompting the clothes that are stuck together to separate, greatly reducing the occurrence of clothes entanglement; if the clamping mechanism clamps small clothes, the small clothes can be directly separated from other clothes, and if the clamping mechanism clamps large clothes, the large clothes can be unfolded to promote the separation of the small clothes wrapped inside the large clothes. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings.

[0020] Figure 1 It is a schematic diagram of the overall structure of the heat pump dryer in the embodiment of the present invention;

[0021] Figure 2 It is a first three-dimensional structure diagram of the drum and the control mechanism in the embodiment of the present invention;

[0022] Figure 3 For Figure 2 The enlarged schematic diagram of part A in

[0023] Figure 4 It is a second three-dimensional structure diagram of the drum and the control mechanism in the embodiment of the present invention;

[0024] Figure 5 It is a rear view of the drum and the control mechanism in the embodiment of the present invention;

[0025] Figure 6 For Figure 5 The enlarged schematic diagram of part B in

[0026] Figure 7 It is a third three-dimensional structure diagram of the drum and the control mechanism in the embodiment of the present invention;

[0027] Figure 8 For Figure 7 The enlarged schematic diagram of part C in

[0028] Figure 9 It is a partial structure diagram of the driving mechanism in the embodiment of the present invention.

[0029] Explanation of the Reference Numerals:

[0030] 1. Housing; 2. Drum; 201. Annular groove; 3. Clamping mechanism; 301. Clamping seat; 302. Clamping block; 303. Rotating shaft; 304. Sealing piece; 4. Control mechanism; 401. Gear; 402. Rack; 403. Control rod; 404. Fixed cylinder; 405. Adjusting ring; 406. Guide groove; 407. Guide rod; 408. Roller; 409. Limit ring; 5. Driving mechanism; 501. Elastic telescopic rod; 502. Electric telescopic rod; 503. End plate; 504. Rotating rod; 505. Driving block; 506. Connecting rod; 507. Driven block; 508. Semi-circular plate; 509. Waist-shaped plate; 6. Extrusion mechanism; 601. Extrusion rod; 602. Extrusion block; 603. First arc-shaped block; 604. Second arc-shaped block; 605. Reset plate; 606. Reset spring; 7. Impeller. Detailed implementation manners

[0031] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further introduced in detail below with reference to the accompanying drawings.

[0032] Please refer to Figures 1-9 , an embodiment of the present invention provides a technical solution: a heat pump dryer, including a housing 1 and a drum 2 rotatably installed inside the housing 1, and a clamping mechanism 3 is installed on the drum 2; an annular groove 201 is formed on the outer surface of the drum 2, and a motor is installed inside the housing 1, and the motor drives the drum 2 to rotate through a drive belt cooperating with the annular groove 201; in this embodiment, the motor provides power to drive the drum 2 and the impeller 7 installed behind the drum 2 to rotate synchronously.

[0033] Specifically, the front end of the drum 2 is rotatably installed on the front support of the dryer to ensure that the axis of the drum 2 does not change, which is the prior art and will not be elaborated; during the working process, the user puts the wet clothes dried by the washing machine into the drum 2 one by one. That is, in the initial state, the clothes in the drum 2 are in contact with each other but not entangled, and the clothes are located at the lowest point inside the drum 2; when the motor drives the drum 2 and the impeller 7 to rotate through the drive belt, the drum 2 drives the wet clothes to rise a certain distance synchronously first, and then the clothes fall under the action of their own gravity. During the falling process of the clothes, they roll until they return to the lowest point inside the drum 2, and so on; when the impeller 7 rotates, it generates an air flow, and the hot air passes through the inside of the drum 2 from front to back and contacts the wet clothes inside the drum 2 to dry the wet clothes.

[0034] The clamping mechanism 3 has a clamping state for clamping the clothes inside the drum 2 and a normal state in which the clothes are not clamped; the clamping mechanism 3 rotates synchronously with the drum 2. During the rotation of the clamping mechanism 3, the wet clothes inside the drum 2 are clamped. The clamped clothes first rotate synchronously with the drum 2 and the clamping mechanism 3. When rotated to a certain height, the unclamped clothes fall under the action of gravity, and the clamped clothes will rise synchronously with the clamping mechanism 3, so that relative displacement occurs between the clothes, promoting the separation of the clothes and avoiding the entanglement of the adhering clothes; then the clamping mechanism 3 returns from the clamping state to the normal state, that is, the clamping mechanism 3 releases the clamping of the clothes, and the clamped clothes fall under the action of gravity.

[0035] It should be noted that the clamping of the clothes by the clamping mechanism 3 is random, that is, the clamping mechanism 3 may clamp small clothes or large clothes; when the clamping mechanism 3 clamps small clothes, due to the small volume of the small clothes, the area of contact with other clothes is also small, and through the above working process, the small clothes can be directly separated from other clothes, avoiding the entanglement of small clothes and other clothes; when the clamping mechanism 3 clamps large clothes, due to the large volume of the large clothes, it will not be directly separated from other clothes, but during the process of the clamped part of the large clothes continuing to rotate and rise with the clamping mechanism 3, the large clothes can be unfolded, so that the small clothes wrapped by the large clothes fall under the action of gravity and can be separated from the large clothes, which can also play a role in preventing entanglement.

[0036] The clamping mechanism 3 includes multiple or a single movable clamping member, as long as it can clamp the clothes.

[0037] The control mechanism 4 is used to switch the clamping state and the normal state of the clamping mechanism 3; the control mechanism 4 includes a waterproof electric push rod installed on the inner wall of the drum 2, which is used to control the movement of the above-mentioned clamping piece or clamping plate and can keep the clamping member in a specific position, that is, keep the clamping mechanism 3 in the clamping state or the normal state. This is the prior art and will not be elaborated.

[0038] As Figure 3 shown, in another embodiment provided by the present invention, the clamping mechanism 3 includes a clamping seat 301 installed on the inner wall of the drum 2, and a clamping block 302 is movably installed on the clamping seat 301.

[0039] Specifically, the clamping block 302 can be single or multiple. The clamping block 302 can be slidably engaged with the clamping seat 301 or rotatably engaged with the clamping seat 301. When the clamping block 302 is single: in the normal state of the clamping mechanism 3, there is a gap between the clamping block 302 and the clamping block 301, and the clothing is filled in this gap; when the clamping mechanism 3 is switched from the normal state to the clamping state, the clamping block 302 approaches the clamping block 301 and clamps the clothing in the gap. When the clamping block 302 is multiple: in the normal state of the clamping mechanism 3, there is a gap between adjacent clamping blocks 302, and the clothing is filled in this gap; when the clamping mechanism 3 is switched from the normal state to the clamping state, adjacent clamping blocks 302 approach each other and clamp the clothing in the gap.

[0040] As Figure 3 shown, in another embodiment provided by the present invention, the number of the clamping blocks 302 is two and they are in the shape of cams. A rotating shaft 303 fixedly connected to the corresponding clamping block 302 is rotatably installed at each position of the clamping seat 301 corresponding to each clamping block 302; Figure 3 In the normal state, the clamping mechanism 3 is in the normal state. There is a gap between the two clamping blocks 302, and the width of this gap gradually becomes narrower from the inside to the outside along the radial direction of the drum 2. The wet clothing is filled in the gap between the two clamping blocks 302. When the left clamping block 302 rotates clockwise and the right clamping block 302 rotates counterclockwise in the figure, the gap between the two clamping blocks 302 becomes smaller, and the two clamping blocks 302 play a role in clamping the clothing in the gap.

[0041] Specifically, when the drum 2 rotates, it drives the clamping seat 301 and the two clamping blocks 302 to rotate synchronously. When the clamping seat 301 and the two clamping blocks 302 rotate to a position near the lowest point inside the drum, the clamping mechanism 3 is switched from the normal state to the clamping state, so as to clamp the clothing. As the drum 2 continues to rotate, the clamping block 302 drives the clamped clothing to rotate and rise synchronously. When the clamping seat 301 and the two clamping blocks 302 rotate to a position near the highest point inside the drum, the clamping mechanism 3 is switched from the clamping state to the normal state, and the clamped clothing falls under the action of gravity until it falls onto the inner wall of the drum 2.

[0042] As Figure 3 shown, in another embodiment provided by the present invention, the control mechanism 4 includes a gear 401 fixedly sleeved on the rotating shaft 303, and a rack 402 meshing with the gear 401 is slidably installed on the clamping seat 301; when the rack 402 drives the gear 401 to rotate, it can synchronously drive the rotating shaft 303 and the clamping block 302 to rotate, so as to realize the switching of the state of the clamping mechanism 3 by controlling the position of the rack 402; the control of the position of the rack 402 can be realized by installing a waterproof electric push rod on the clamping seat 301. The telescopic section of the electric push rod is connected to the rack 402. This is the prior art and will not be elaborated.

[0043] As Figure 3 and Figure 8 shown, in another embodiment provided by the present invention, a control rod 403 penetrating through the clamping seat 301 and the drum 2 is fixedly installed at the end of the rack 402. The control mechanism 4 further includes an adjusting unit for adjusting the position of the control rod 403. In this embodiment, the state of the clamping mechanism 3 can be switched by adjusting the position of the control rod 403. The adjustment of the position of the control rod 403 is achieved through the adjusting unit. The adjusting unit includes a waterproof electric push rod fixedly installed on the clamping seat 301, and the telescopic section of the waterproof electric push rod is connected to the control rod 403. This is prior art and will not be elaborated.

[0044] As Figure 3 and Figure 8 shown, in another embodiment provided by the present invention, there are two gears 401 sleeved on the rotating shaft 303, and the two gears 401 are arranged on both sides of the corresponding clamping block 302. The number of control rods 403 is two, and the two control rods 403 are fixedly connected. In this embodiment, by applying torsional forces to the positions on both sides of the clamping block 302 on the rotating shaft 303 simultaneously, the stability of the clamping of the clothes by the clamping block 302 is improved. Since the two control rods 403 are fixedly connected, the adjusting unit only needs to control one of the control rods 403 to achieve the switching of the state of the clamping mechanism 3.

[0045] As Figure 2 and Figure 5 shown, in another embodiment provided by the present invention, the adjusting unit includes a fixed cylinder 404 fixedly installed between the outer shell 1 and the drum 2 and coinciding with the axis of the drum 2. As Figure 1 and Figure 7 shown, a closed annular plate is provided on the rear end surface of the fixed cylinder 404. The annular plate is in rotational cooperation with the drum 2, and an arc-shaped groove allowing the transmission belt to pass through is provided on the fixed cylinder 404. An adjusting ring 405 coinciding with its axis is installed on the inner wall of the fixed cylinder 404. A guiding groove 406 is provided on the surface of the adjusting ring 405 facing the control rod 403, and a guiding rod 407 cooperating with the guiding groove 406 is installed on the control rod 403. In this embodiment, the fixed cylinder 404 is fixedly connected to the outer shell 1, and the two are connected by a bracket common in the prior art. There is no relative rotation between the adjusting ring 405 and the fixed cylinder 404. When the drum 2 operates, there is relative rotation between the adjusting ring 405 and the drum 2.

[0046] Specifically, a part of the guiding rod 407 is located in the guiding groove 406, and the other part is located on the control rod 403. When the drum 2 rotates, it will drive the clamping seat 301, the clamping block 302, the rotating shaft 303, the gear 401, the rack 402, the control rod 403, and the drum 2 to revolve synchronously around the axis of the drum 2. The shape of the guiding groove 406 is as Figure 5As shown, it is composed of an inner arc segment with a smaller inner diameter, an outer arc segment with a larger inner diameter, and a connecting segment between the inner arc segment and the outer arc segment. When the guide rod 407 is located in the inner arc segment, the clamping mechanism 3 is in a normal state. During the process of the guide rod 407 moving from the inner arc segment of the guide groove 406 to the outer arc segment, the guide rod 407 pulls the control rod 403 to move radially outward along the drum 2. The control rod 403 drives the rack 402 to move, the rack 402 drives the gear 401 to rotate, the gear 401 drives the rotating shaft 303 and the clamping block 302 to rotate, and the clamping mechanism 3 switches from the normal state to the clamping state; throughout the process when the guide rod 407 is located in the outer arc segment of the guide groove 406, the clamping mechanism 3 is in the clamping state, so as to ensure that the clamping mechanism 3 can drive the clamped clothing to rotate and rise along with the drum 2.

[0047] As Figure 7 and Figure 8 As shown, in another embodiment provided by the present invention, the guide rod 407 is a round rod and is rotationally matched with the control rod 403; during the process of the guide rod 407 moving along the guide groove 406, it is in rolling cooperation with the guide groove 406, thereby improving the smoothness of the movement of the guide rod 407 and ensuring that the guide rod 407 can move synchronously in the guide groove 406 when the drum 2 rotates; a roller 408 for supporting and limiting the drum 2 is installed on the inner wall of the fixed cylinder 404, and a limiting ring 409 matched with the roller 408 is fixedly installed on the outer wall of the drum 2; in this embodiment, through the cooperation of the roller 408 and the limiting ring 409, the axial limit of the drum 2 is realized, ensuring that the axis of the drum 2 and the axes of the fixed cylinder 404 and the adjusting ring 405 are kept in a coincident state, so as to ensure the normal cooperation between the guide rod 407 and the guide groove 406; preventing the situation that the guide rod 407 falls off from the guide groove 406 due to the axial offset of the drum 2.

[0048] As Figure 5 and Figure 6 As shown, in another embodiment provided by the present invention, it further includes an extrusion mechanism 6 for squeezing the wet clothing into the space between the two clamping blocks 302. The extrusion mechanism 6 includes an extrusion rod 601 that slides radially through the drum 2. One end of the extrusion rod 601 located inside the drum 2 faces the space between the two clamping blocks 302 and is fixedly installed with an arrow-shaped extrusion block 602; the other end of the extrusion rod 601 is fixedly installed with a first arc-shaped block 603, and a second arc-shaped block 604 corresponding to the position of the first arc-shaped block 603 is fixedly installed on the inner wall of the fixed cylinder 404; a reset plate 605 is fixedly installed on the extrusion rod 601, and a reset spring 606 is connected between the reset plate 605 and the drum 2.

[0049] In the actual use process, due to the wide variety of clothing types and different materials for different types of clothing, some clothes with harder materials are not easily deformed. For example, thicker coats such as overcoats and windbreakers. If the clothes are directly placed into the drum 2, the clothes may not fill the gap between the two clamping blocks 302, which results in the clamping mechanism 3 not being able to clamp the clothes when switching from the normal state to the clamping state. To avoid this situation, the squeezing mechanism 6 squeezes the clothes placed in the drum 2 to squeeze the clothes into the gap between the two clamping blocks 302, ensuring that the clamping mechanism 3 can clamp the clothes when switching from the normal state to the clamping state.

[0050] Specifically, when the drum 2 rotates, it drives the squeezing rod 601, the squeezing block 602, the first arc-shaped block 603, the reset plate 605 and the reset spring 606 to rotate synchronously. When the first arc-shaped block 603 rotates to the position corresponding to the second arc-shaped block 604, it is pushed by the second arc-shaped block 604. The first arc-shaped block 603 drives the squeezing rod 601, the reset plate 605 and the squeezing block 602 to move, and the reset spring 606 is stretched. During the movement of the squeezing block 602, it squeezes the clothes piled up together. Since the squeezing block 602 faces the gap between the two squeezing blocks 602, the clothes will be squeezed into the gap between the two squeezing blocks 602 after being squeezed, thus ensuring that the clamping mechanism 3 can clamp the clothes when switching from the normal state to the clamping state.

[0051] It should be noted that in this embodiment, the squeezing mechanism 6 can not only squeeze the clothes into the gap between the two squeezing blocks 602, but also squeeze out some moisture in the clothes by squeezing the wet clothes in the drum 2, improving the drying efficiency of the clothes.

[0052] As Figure 3 and Figure 4 shown, in another embodiment provided by the present invention, the clamping seat 301 is slidably matched with the inner wall of the drum 2 along the axial direction of the drum 2, and the adjusting ring 405 is slidably matched with the inner wall of the fixed cylinder 404 along the axial direction of the fixed cylinder 404; the heat pump dryer further includes a driving mechanism 5 for driving the clamping seat 301 and the adjusting ring 405 to reciprocate. In this embodiment, since the clamping seat 301 is slidably matched with the drum 2 and the control rod 403 installed on the clamping seat 301 penetrates the drum 2, a through groove for cooperating with the control rod 403 needs to be opened on the drum 2. The existence of the through groove will cause the water inside the drum to overflow when the drum works. To avoid this situation, sealing sheets 304 that are fixedly installed on the front and rear end faces of the clamping seat 301 and are in contact with the inner wall of the drum 2 and can seal the through groove are provided in this embodiment.

[0053] In this embodiment, the driving mechanism 5 controls the clamping mechanism 3 and the adjusting ring 405 to reciprocate axially along the drum 2 during the rotation of the drum 2, realizing the shaking of the clamped clothes and improving the separation effect of the clothes. Specifically, the driving mechanism 5 includes a waterproof electric push rod installed on the inner wall of the drum 2. The end of the telescopic section of the waterproof electric push rod is fixedly connected to the clamping seat 301. An electric push rod is installed on the inner wall of the fixed cylinder 404, and the end of the telescopic section of the electric push rod is fixedly connected to the adjusting ring 405. The clamping seat 301 and the adjusting ring 405 are driven to move synchronously along the axis of the drum 2 by the waterproof electric push rod and the electric push rod. It should be noted that although the clamping seat 301 revolves around the axis of the drum 2 and the adjusting ring 405 does not rotate, this does not affect the synchronous movement between the two in the axial direction.

[0054] As Figure 7 shown, in another embodiment provided by the present invention, the driving mechanism 5 includes an elastic telescopic rod 501 fixedly installed on the inner wall of the drum 2 along the axis of the drum 2. The end of the telescopic section of the elastic telescopic rod 501 is fixedly connected to the clamping seat 301. An electric telescopic rod 502 for driving the adjusting ring 405 to move is fixedly installed on the inner wall of the fixed cylinder 404 along its axis, and the end of the telescopic section of the electric telescopic rod 502 is fixedly connected to the adjusting ring 405.

[0055] During the rotation of the drum 2, the electric telescopic rod 502 drives the adjusting ring 405 to move backward along the axis of the drum 2, and the electric telescopic rod 502 itself contracts. During the movement of the adjusting ring 405, a thrust is applied to the guide rod 407, and the guide rod 407, the control rod 403, the gear 401, the rack 402 and the clamping mechanism 3 are driven to move synchronously. The clamping mechanism 3 drives the clamped clothes to move backward along the axis of the drum 2, and the elastic telescopic rod 501 is compressed by the clamping seat 301. Subsequently, the electric telescopic rod 502 resets and extends. The electric telescopic rod 502 drives the adjusting ring 405 to move forward along the axis of the drum 2. The adjusting ring 405 no longer applies a thrust to the guide rod 407, and the elastic telescopic rod 501 is no longer subjected to the thrust of the clamping seat 301. The elastic telescopic rod 501 can be reset. When the elastic telescopic rod 501 resets, the resilience force thereof drives the guide rod 407, the control rod 403, the gear 401, the rack 402 and the clamping mechanism 3 to move forward and reset synchronously along the axis of the drum 2. In this embodiment, the synchronous movement of the clamping mechanism 3 and the adjusting ring 405 in the axial direction of the drum 2 is realized through one electronic control element, and there is no need to separately set a waterproof electric push rod for controlling the clamping mechanism 3 in the drum 2, saving costs.

[0056] As Figure 9As shown in the figure, in another embodiment provided by the present invention, an end plate 503 is fixedly installed at the end of the telescopic section of the electric telescopic rod 502. Two rotating rods 504 are rotatably installed on the surface of the end plate 503 facing the adjusting ring 405 through torsion springs. A driving block 505 is fixedly installed at the end of the rotating rod 504. A connecting rod 506 is fixedly installed on the surface of the adjusting ring 405 facing the end plate 503. A driven block 507 that cooperates with the driving block 505 is fixedly installed at the end of the connecting rod 506. The surface of the driven block 507 facing the end plate 503 is an arc surface, and the surface of the driven block 507 away from the end plate 503 is a flat surface. The surface of the driving block 505 facing the adjusting ring 405 is an arc surface, and the surface of the driving block 505 facing the end plate 503 is a flat surface. A semi-circular plate 508 is fixedly installed on each rotating rod 504. A kidney-shaped plate 509 is fixedly installed at a position on the inner wall of the fixed cylinder 404 between the end plate 503 and the adjusting ring 405.

[0057] The effect achieved by the above structure in this embodiment is as follows: The electric telescopic rod 502 provides power to pull the adjusting ring 405 to move backward along its axis. The adjusting ring 405 pushes the guide rod 407, the control rod 403, and the clamping mechanism 3 to move backward synchronously. The clamping mechanism 3 drives the clamped wet clothes to move backward while in the clamping state, and the elastic telescopic rod 501 shortens while storing energy. After the adjusting ring 405 moves backward to a certain position, the electric telescopic rod 502 no longer provides power for the adjusting ring 405 to move backward. At this time, the elastic telescopic rod 501 quickly extends and restores. The telescopic section of the elastic telescopic rod 501 pushes the clamping mechanism 3, the control rod 403, the guide rod 407, and the adjusting ring 405 to quickly move forward and reset along the axis of the adjusting ring 405. The clamping mechanism 3 drives the clamped wet clothes to quickly move forward and reset, and quickly stops after reaching the reset position, thus achieving the effect of rapid shaking, further promoting the separation of the wet clothes that are stuck together.

[0058] Specifically, when the electric telescopic rod 502 extends, its telescopic section drives the end plate 503, the rotating rod 504, the driving block 505 and the semi-circular plate 508 to gradually approach the adjusting ring 405; the driving block 505 first abuts against the arc surface of the driven block 507 and is pushed by the reaction force of the driven block 507, and the two rotating rods 504 overcome the action of the torsion spring and open, and the two driving blocks 505 move away from each other until the arc surface of the driving block 505 is separated from the arc surface of the driven block 507; then, the resilience of the torsion spring causes the two rotating rods 504 to rotate and reset, and the two driving blocks 505 approach and reset each other; then, the electric telescopic rod 502 contracts, and its telescopic section drives the end plate 503, the rotating rod 504, the driving block 505 and the semi-circular plate 508 to move backward and gradually away from the adjusting ring 405; the driving block 505 first abuts against the surface of the driven block 507 away from the end plate 503, and then drives the connecting rod 506 and the adjusting ring 405 to move backward along the axis of the adjusting ring 405 by pulling the driven block 507, and the adjusting ring 405 pushes the guide rod 407, the control rod 403 and the clamping mechanism 3 to move backward along the axis of the adjusting ring 405, and the elastic telescopic rod 501 contracts; during the backward movement of the semi-circular plate 508, it abuts against the kidney-shaped plate 509 and is pushed by the kidney-shaped plate 509, and the two semi-circular plates 508 move away from each other and drive the two rotating rods 504 to overcome the action of the torsion spring and open, and the two driving blocks 505 move away from each other again until the driving block 505 is separated from the driven block 507; at this time, the driven block 507 is no longer driven by the electric telescopic rod 502, and the elastic telescopic rod 501 can also quickly extend and recover. During the recovery process of the elastic telescopic rod 501, its telescopic section pushes the clamping mechanism 3, the control rod 403, the guide rod 407 and the adjusting ring 405 to quickly move forward and reset along the axis of the adjusting ring 405.

[0059] Only some exemplary embodiments of the present invention have been described by way of illustration above. Without doubt, for those of ordinary skill in the art, the described embodiments can be modified in various different ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A heat pump dryer, comprising a housing (1) and a drum (2) rotatably installed inside the housing (1), characterized in that, A clamping mechanism (3) is installed on the drum (2); The clamping mechanism (3) has a clamping state for clamping the clothes in the drum (2) and a normal state in which the clothes are not clamped; A control mechanism (4) for switching between the clamping state and the normal state of the clamping mechanism (3); The clamping mechanism (3) includes a clamping seat (301) installed on the inner wall of the drum (2), and a clamping block (302) is movably installed on the clamping seat (301); the number of clamping blocks (302) is two and they are in the shape of cams, and a rotating shaft (303) fixedly connected to the corresponding clamping block (302) is rotatably installed at the position corresponding to each clamping block (302) on the clamping seat (301); The control mechanism (4) includes a gear (401) fixedly sleeved on the rotating shaft (303), and a rack (402) meshing with the gear (401) is slidably installed on the clamping seat (301); a control rod (403) passing through the clamping seat (301) and the drum (2) is fixedly installed at the end of the rack (402), and the control mechanism (4) further includes an adjustment unit for adjusting the position of the control rod (403); The adjustment unit includes a fixed cylinder (404) fixedly installed between the housing (1) and the drum (2) and coinciding with the axis of the drum (2); an adjustment ring (405) coinciding with its axis is installed on the inner wall of the fixed cylinder (404), a guide groove (406) is provided on the surface of the adjustment ring (405) facing the control rod (403), and a guide rod (407) cooperating with the guide groove (406) is installed on the control rod (403); An extrusion mechanism (6), the extrusion mechanism (6) includes an extrusion rod (601) sliding radially through the drum (2), and an arrow-shaped extrusion block (602) is fixedly installed at one end of the extrusion rod (601) inside the drum (2) facing between the two clamping blocks (302).

2. The heat pump dryer according to claim 1, characterized in that, Two gears (401) are sleeved on the rotating shaft (303), and the two gears (401) are arranged on both sides of the corresponding clamping block (302); the number of control rods (403) is two, and the two control rods (403) are fixedly connected.

3. The heat pump dryer according to claim 2, characterized in that, The guide rod (407) is a round rod and is rotatably matched with the control rod (403); a roller (408) for supporting and limiting the drum (2) is installed on the inner wall of the fixed cylinder (404), and a limiting ring (409) cooperating with the roller (408) is fixedly installed on the outer wall of the drum (2).

4. The heat pump dryer according to claim 3, characterized in that, The clamping seat (301) is slidably matched with the inner wall of the drum (2) along the axial direction of the drum (2), and the adjustment ring (405) is slidably matched with the inner wall of the fixed cylinder (404) along the axial direction of the fixed cylinder (404); the heat pump dryer further includes a driving mechanism (5) for driving the clamping seat (301) and the adjustment ring (405) to move reciprocally.

5. A heat pump dryer according to claim 4, characterized in that, The driving mechanism (5) includes an elastic telescopic rod (501) fixedly installed on the inner wall of the drum (2) along the axial direction of the drum (2), and an electric telescopic rod (502) for driving the adjustment ring (405) to move is fixedly installed on the inner wall of the fixed cylinder (404) along its axial direction.

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