Pulsator washing machine
By setting up a torsion spring at the rotating connection between the door cover and the case in the pulsator washing machine, the door cover is blocked from landing, the empty stroke problem when the door cover is closed is solved, the slow closing of the door cover and the effective buffering of the damper is achieved, and the service life of the damper is extended.
Patent Information
- Application Number
- CN202420658531.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-01
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-04-01
AI Technical Summary
In the pulsator washing machine, there is a problem with the empty stroke when the door cover is closed, which causes the door cover to close too quickly, affecting the buffering effect and service life of the damper.
A torsion spring is set up at the rotating connection between the door cover and the housing. The torsion spring always provides torque that prevents the door cover from falling after the door cover is opened until the door cover lands at a preset angle to contact the damper.
Through the torsion spring, the empty stroke problem before the door cover comes into contact with the damper is solved, allowing the door cover to be closed slowly, reducing the speed before the door cover comes into contact with the damper, thereby improving the buffering effect and service life of the damper.
Smart Images
Figure CN222594371U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of household appliances, in particular to a pulsator washing machine. Background Art
[0002] A pulsator washing machine is a household appliance that uses electrical energy to generate mechanical action to wash clothes. As consumers' living standards improve, the requirements for pulsator washing machines are getting higher and higher.
[0003] A pulsator washing machine is usually provided with a casing, a drum assembly and a door cover. The drum assembly is arranged inside the casing, and a washing chamber is formed inside the drum assembly, and the washing chamber is used to wash clothes. The top surface of the casing is open, and the door cover is arranged at the top surface opening of the casing, so as to achieve the function of opening and closing the casing. A damper is arranged on the top of the casing. When the door cover covers the top opening of the casing, the damper can interact with the door cover, and the damper can generate a damping force in the opposite direction of the closing direction of the door cover to prevent the door cover from falling freely and colliding with the casing.
[0004] In the relevant pulsator washing machine, when the door cover is opened to the maximum angle, the door cover usually does not contact the damper. The door cover needs to drop to a certain angle before it contacts the damper and the damper generates damping force. Therefore, there is an idle stroke problem before the door cover drops to contact the damper. During the idle stroke, the door cover falls freely, causing the door cover to close quickly, affecting the buffering effect and service life of the damper. Utility Model Content
[0005] The utility model aims to provide a pulsator washing machine to optimize the structure of the pulsator washing machine in the related art, solve the problem of the idle stroke of the door cover, enable the door cover to close slowly, ensure the buffering effect of the damper and improve the service life of the damper.
[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:
[0007] According to one aspect of the utility model, the utility model provides a pulsator washing machine, which includes: a casing, which is configured as an outer shell of the pulsator washing machine; a clothing inlet is provided at the top of the casing; a drum assembly is arranged in the casing, a washing chamber is formed in the drum assembly, and the washing chamber is connected to the clothing inlet; a door cover, which is rotatably arranged at the top of the casing, and the door cover is used to open and close the clothing inlet; a torsion spring, which is arranged at the rotation connection between the door cover and the casing, one end arm of the torsion spring is connected to the casing, and the other end arm of the torsion spring is connected to the door cover; a damper, which is arranged at the top of the casing; wherein, when the door cover is opened, the torsion spring can always generate torsion, and the torsion of the torsion spring can prevent the door cover from falling; when the door cover falls to a preset angle, the door cover can be offset against the damper, and the damper can provide a damping force in the opposite direction to the falling of the door cover.
[0008] The embodiments of the present invention have the following advantages and positive effects:
[0009] In the pulsator washing machine of the embodiment of the utility model, a door cover is rotatably arranged on the top of the casing, so that the clothing loading port on the top of the casing can be opened and closed. A torsion spring is arranged at the rotation connection between the door cover and the casing. After the door cover is opened, the torsion spring can always provide a torsion force to prevent the door cover from falling. When the door cover is closed from the maximum angle, the torsion force of the torsion spring can first provide resistance for the door cover, so that the door cover slowly falls. When the door cover falls to a preset angle, the door cover can abut against the damper, and at this time, the damping force of the damper can jointly prevent the door cover from falling with the torsion force of the torsion spring. The torsion spring can solve the problem of the empty stroke before the door cover contacts the damper, so that the door cover can be closed slowly. In addition, the torsion force of the torsion spring can effectively reduce the speed of the door cover before contacting the damper, which is conducive to ensuring the buffering effect of the damper and improving the service life of the damper. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 The utility model is a schematic structural diagram of a pulsator washing machine according to an embodiment of the present invention.
[0011] Figure 2 yes Figure 1 Schematic diagram of part of the structure.
[0012] Figure 3 yes Figure 2 Schematic diagram of the structure in another state.
[0013] Figure 4 yes Figure 3 Schematic diagram of the enlarged structure of area A in the middle.
[0014] Figure 5 yes Figure 3 A schematic diagram of the decomposed structure.
[0015] Figure 6 yes Figure 5 Schematic diagram of the enlarged structure of area B in the middle.
[0016] Figure 7 yes Figure 2 A cross-sectional schematic diagram of .
[0017] Figure 8 yes Figure 7 Schematic diagram of the enlarged structure of the C area in the middle.
[0018] Fig. 9 yes Figure 3 A cross-sectional schematic diagram of .
[0019] Fig.10 yes Fig. 9 Schematic diagram of the enlarged structure of the D area in the middle.
[0020] Fig.11 yes Fig. 9 A cross-sectional view in another state.
[0021] Fig.12 yes Fig.11 Schematic diagram of the enlarged structure of area E in the middle.
[0022] Fig.13 yes Figure 3 Schematic diagram of the structure without the door cover.
[0023] Fig.14 yes Fig.13 A schematic diagram of the decomposed structure.
[0024] Fig.15 yes Fig.14 Schematic diagram of the enlarged structure of the F region in the middle.
[0025] Fig.16 yes Fig.15 A schematic diagram of the decomposed structure.
[0026] Fig.17 yes Figure 3 Schematic diagram of the structure of the middle door cover and the shaft bracket.
[0027] Fig.18 yes Fig.17 Schematic diagram of the enlarged structure of the G region in the middle.
[0028] Fig.19 yes Fig.17 Schematic diagram of the exploded structure of the middle door cover from another perspective.
[0029] Fig. 20 yes Fig.19 Schematic diagram of the enlarged structure of the middle H region.
[0030] Fig.21 yes Fig.18 Schematic diagram of the structure of the central rotating shaft bracket, rotating shaft and torsion spring.
[0031] Fig. 22 yes Fig.21 A cross-sectional schematic diagram of .
[0032] The reference numerals in the accompanying drawings are as follows: 1. casing; 10. clothing loading port; 11. surrounding frame; 111. first mounting groove; 112. second mounting groove; 12. pivot bracket; 120. accommodating chamber; 121. pivot portion; 1211. opening groove; 1212. rotating connection portion; 122. limiting baffle; 1221. limiting rib; 13. damper; 131. cylinder; 132. piston rod; 14. top cover; 2. door cover; 20. avoidance groove; 201. through hole; 202. rotating connection hole; 21. cover frame; 211. abutment portion; 212. assembly groove; 22. panel; 23. splint; 24. front support plate; 3. torsion spring; 4. pivot member; 40. shaft hole. DETAILED DESCRIPTION
[0033] Typical embodiments that embody the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various changes in different embodiments without departing from the scope of the present invention, and the descriptions and illustrations therein are essentially for illustrative purposes rather than for limiting the present invention.
[0034] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "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 application 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 application.
[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. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0036] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 indirectly connected 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 this application can be understood according to specific circumstances.
[0037] In the relevant pulsator washing machine, when the door cover is opened to the maximum angle, the door cover usually does not contact the damper. The door cover needs to drop to a certain angle before it contacts the damper and the damper generates damping force. Therefore, there is an idle stroke problem before the door cover drops to contact the damper. During the idle stroke, the door cover falls freely, causing the door cover to close quickly, affecting the buffering effect and service life of the damper.
[0038] For the convenience of description, unless otherwise specified, the directions of up, down, left, right, front and back in this article are all based on the state of the pulsator washing machine in use, with the direction facing the user as the front direction, and the direction facing away from the user as the back direction; the vertical direction is the up and down direction, and the horizontal direction is the left and right direction.
[0039] Figure 1 The utility model is a schematic structural diagram of a pulsator washing machine according to an embodiment of the present invention. Figure 2 yes Figure 1 Schematic diagram of part of the structure. Figure 3 yes Figure 2 Schematic diagram of the structure in another state.
[0040] See also Figures 1 to 3 As shown, the pulsator washing machine provided in the embodiment of the utility model may include a housing 1. The housing 1 may be configured as an outer shell of the pulsator washing machine. The housing 1 may generally adopt a rectangular hollow structure. It should be noted that, in other embodiments, the appearance shape of the housing 1 may be designed as required, and is not limited here. The interior of the housing 1 may be used to provide an installation space.
[0041] In some embodiments, a clothing inlet 10 may be provided on the top side wall of the housing 1. The clothing inlet 10 may be connected to the internal space of the housing 1. Clothes may be placed into the housing 1 through the clothing inlet 10 for washing.
[0042] See also Figures 1 to 3 As shown, in some embodiments, a door cover 2 may be provided on the top surface of the housing 1. The door cover 2 may be used to open and close the clothing loading port 10 on the top surface of the housing 1, and then the space inside the housing 1 may be opened and closed through the door cover 2.
[0043] In some embodiments, the door cover 2 is rotatably disposed on the top of the housing 1. The rear edge of the door cover 2 can be rotatably connected to the top of the housing 1. The rear edge of the door cover 2 can be rotatably connected to the rear edge of the clothing loading port 10. Therefore, the front end of the door cover 2 can be rotated with its rear end as an axis. It should be noted that in some other embodiments, the door cover 2 can also be rotatably connected to the top of the housing 1 through other side edges.
[0044] See also Figures 1 to 3 As shown, in some embodiments, a frame 11 may be provided on the top of the housing 1. The frame 11 may be a rectangular frame structure. The clothing inlet 10 may be opened at the center of the frame 11. The rear end of the door cover 2 may be rotatably disposed on the frame 11. The rear end of the door cover 2 may be rotated relative to the frame 11, so that the front end of the door cover 2 covers or opens the clothing inlet 10, thereby realizing the opening and closing of the door cover 2, and then opening and closing the clothing inlet 10 on the frame 11.
[0045] See also Figure 1 As shown, a drum assembly (not shown in the figure) may be provided in the casing 1. The drum assembly may be arranged to extend vertically in the up-down direction. A washing chamber (not shown in the figure) may be formed in the drum assembly. A barrel opening (not shown in the figure) may be formed on the top surface of the drum assembly. The barrel opening of the drum assembly may be connected to the inside of the washing chamber. The barrel opening of the drum assembly is directly opposite to the clothing delivery port 10 and the door cover 2 at the top of the casing 1. The clothing delivery port 10 may be connected to the inside of the washing chamber. When the door cover 2 is rotated to lift the front end of the door cover 2, the clothing delivery port 10 can be opened, and the clothing can be sequentially placed into the washing chamber in the drum assembly through the clothing delivery port 10 of the casing 1 and the barrel opening at the top of the drum assembly, and operations such as clothing washing and clothing dehydration can be performed. When the door cover 2 is rotated to lower the front end of the door cover 2, the clothing delivery port 10 can be closed by the door cover 2, and the door cover 2 can simultaneously close the clothing delivery port 10 and the washing chamber.
[0046] In some embodiments, the drum assembly may include an outer drum (not shown). The outer drum may be disposed inside the housing 1. The outer drum is configured as a barrel for accommodating washing water, that is, the inner space of the outer drum can be used to hold washing liquid, such as water, detergent, softener, etc.
[0047] In some embodiments, the drum assembly may include an inner drum (not shown). A washing chamber may be formed inside the inner drum. A water hole may be provided on the peripheral wall of the inner drum. Washing liquid can enter the washing chamber in the inner drum through the water hole. The washing chamber in the inner drum is used to hold the clothes to be washed.
[0048] In some embodiments, the inner drum is rotatably disposed inside the outer drum. When the inner drum rotates relative to the outer drum, the inner drum can drive the clothes to rotate relative to the outer drum, thereby realizing the washing function of the clothes in the washing cavity of the inner drum, and improving the uniformity of washing and dehydrating the clothes. It should be noted that in other embodiments, the washing cavity can also be used to dry clothes, such as a washing and drying machine.
[0049] In some embodiments, the outer cylinder and the inner cylinder can be coaxially arranged inside and outside. The top of the outer cylinder and the top of the inner cylinder can be provided with openings arranged oppositely. The top opening of the outer cylinder and the top opening of the inner cylinder can be combined to form the cylinder mouth of the cylinder assembly.
[0050] In some embodiments, a driving device (not shown in the figure), such as a driving motor, may be provided in the housing 1. The driving device may be provided outside the outer drum. The driving device may be provided in the housing 1. The output end of the driving device may extend into the outer drum and be transmission-connected to the inner drum. When the driving device can drive the inner drum to rotate relative to the outer drum, the washing or dehydration function of the washing chamber in the inner drum can be realized. It should be noted that, in some other embodiments, the output end of the driving device may also be transmission-connected to the inner drum through a transmission device.
[0051] In some embodiments, a water-dispelling blade (not shown) may be provided on the inner bottom surface of the inner drum. The output end of the driving device may be in transmission connection with the water-dispelling blade. The driving device can drive the water-dispelling blade to rotate, thereby driving the water and clothes in the inner drum to rotate, thereby realizing the washing function of the washing chamber in the inner drum.
[0052] Figure 4 yes Figure 3 Schematic diagram of the enlarged structure of area A in the middle. Figure 5 yes Figure 3 A schematic diagram of the decomposed structure. Figure 6 yes Figure 5 Schematic diagram of the enlarged structure of area B in the middle.
[0053] See also Figures 3 to 6 As shown, in some embodiments, a rotating shaft portion 121 may be convexly provided on the top surface of the housing 1. The rotating shaft portion 121 may be convexly provided on the top surface of the surrounding frame 11. The side edge of the door cover 2 may be concavely provided with a avoiding groove 20 arranged opposite to the rotating shaft portion 121. The rotating shaft portion 121 can be rotatably extended into the avoiding groove 20. The side edge of the door cover 2 can rotate around the axis of the rotating shaft portion 121, so that the door cover 2 can rotate relative to the top of the housing 1.
[0054] It should be noted that, in other embodiments, the rotating shaft portion 121 may also be convexly disposed at the side edge of the door cover 2. The avoidance groove 20 may be concavely disposed on the top surface of the housing 1. The side edge of the door cover 2 can rotate in the avoidance groove 20 through the rotating shaft portion 121, and then rotate relative to the top of the housing 1.
[0055] In some embodiments, the rotating shaft 121 may be arranged at the rear edge of the clothing loading port 10. The avoiding groove 20 may be arranged at the rear edge of the door cover 2. The rear edge of the door cover 2 can rotate around the axis of the rotating shaft 121 as an axis.
[0056] It should be noted that, in other embodiments, the avoidance groove 20 may be provided at the left edge or the right edge of the door cover 2. Correspondingly, the rotating shaft portion 121 may be arranged at the corresponding side edge of the clothing inlet 10.
[0057] See also Figures 3 to 6 As shown, in some embodiments, the top of the housing 1 may be provided with two rotating shafts 121. The two rotating shafts 121 may be arranged at left and right intervals on the left and right sides of the top of the housing 1. The two rotating shafts 121 may be arranged coaxially and spaced apart. The axis lines of the two rotating shafts 121 may be located on the same axis.
[0058] In some embodiments, two avoidance grooves 20 may be recessed on the door cover 2. The two avoidance grooves 20 are arranged one-to-one with the two rotating shaft portions 121. The two rotating shaft portions 121 can be rotatably extended into one avoidance groove 20 in a one-to-one correspondence.
[0059] It should be noted that, in other embodiments, the number of the rotating shaft portions 121 on the top of the casing 1 and the number of the avoiding grooves 20 on the door cover 2 can be adjusted as needed, and are not limited here.
[0060] Figure 7 yes Figure 2 A cross-sectional schematic diagram of . Figure 8 yes Figure 7 Schematic diagram of the enlarged structure of the C area in the middle. Fig. 9 yes Figure 3 A cross-sectional schematic diagram of . Fig.10 yes Fig. 9 Schematic diagram of the enlarged structure of the D area in the middle. Fig.11 yes Fig. 9 A cross-sectional view in another state. Fig.12 yes Fig.11 Schematic diagram of the enlarged structure of area E in the middle.
[0061] See also Figures 2 to 12 As shown, in some embodiments, a damper 13 may be provided on the top of the housing 1. The damper 13 may be used to provide a damping force for the door cover 2. When the door cover 2 is falling and closing, the door cover 2 can resist the damper 13, and the damper 13 can generate a damping force to provide a damping force in the opposite direction of the falling of the door cover 2. The damping force can slow down the closing speed of the door cover 2, thereby enabling the door cover 2 to achieve a slow falling effect, preventing the door cover 2 from pinching the hand, and improving the user experience.
[0062] In some embodiments, the door cover 2 may be provided with an abutment portion 211. The abutment portion 211 may be provided at the rear edge of the door cover 2. The abutment portion 211 may be arranged opposite to the damper 13. When the door cover 2 is in the process of falling and closing, the abutment portion 211 may abut against the damper 13, and the damper 13 may generate a damping force, providing a damping force in the opposite direction of the falling of the door cover 2. The damping force of the damper 13 acts on the abutment portion 211, thereby slowing down the closing speed of the door cover 2, and achieving the effect of the door cover 2 falling slowly.
[0063] In some embodiments, the abutment portion 211 may be protruding from the bottom surface of the door cover 2. The abutment portion 211 may be disposed on one side of the axial direction of the avoidance groove 20 of the door cover 2. The damper 13 may be disposed on the same side of the shaft portion 121 in the axial direction.
[0064] In some embodiments, two abutting portions 211 may be provided. The two abutting portions 211 may be respectively provided on opposite sides of the two avoidance grooves 20. Two dampers 13 may be provided. The two dampers 13 may be respectively provided on opposite sides of the two rotating shaft portions 121. The two abutting portions 211 may be arranged in a one-to-one correspondence with the two dampers 13. The two abutting portions 211 can respectively abut against the two dampers 13, and the two dampers 13 jointly provide opposite damping forces for the door cover 2. The two abutting portions 211 are provided on opposite sides of the door cover 2, so as to ensure that the left and right sides of the door cover 2 can be kept stable and fall during the closing process.
[0065] It should be noted that, in other embodiments, a plurality of abutting portions 211 may be provided. A plurality of dampers 13 may be provided. The number of abutting portions 211 and dampers 13 may be adjusted as required and are not limited here.
[0066] See also Figures 7 to 12 As shown, in some embodiments, the damper 13 may include a cylinder 131 and a piston rod 132. The cylinder 131 may be fixedly arranged at the top of the housing 1. The cylinder 131 may be fixedly arranged in the enclosure 11. The piston rod 132 may be coaxially arranged with the cylinder 131. One end of the piston rod 132 may be movably inserted in the cylinder 131. The other end of the piston rod 132 may extend and extend in the direction of the abutment portion 211. The end of the piston rod 132 extending out of the cylinder 131 may be exposed at the top of the housing 1.
[0067] When the door cover 2 is in the process of descending and closing, the abutment portion 211 can abut against the end of the piston rod 132 extending out of the cylinder 131, thereby pushing the piston rod 132 to move toward the inside of the cylinder 131. The inside of the cylinder 131 can have a damping force in the opposite direction of the movement direction of the piston rod 132, and the damping force can act on the abutment portion 211 in the opposite direction through the piston rod 132, thereby hindering the door cover 2 from descending. Since the damper 13 is in the process of the door cover 2 covering the clothing inlet 10, the damper 13 can be in a damping state. At this time, the piston rod 132 can have a damping force on the door cover 2 to hinder its descent, so that the door cover 2 can slow down its descent speed during the descent process, achieve the effect of slowly descending the door cover 2, prevent the door cover 2 from pinching the hand, and improve the user experience.
[0068] In some embodiments, the damper 13 can be arranged horizontally and extended forward and backward. The piston rod 132 can be arranged at the front end of the cylinder 131. In the process of the door cover 2 descending to close the clothing inlet 10, the abutment portion 211 can abut against the front end of the piston rod 132, pushing the piston rod 132 to move backward. At this time, the front end of the piston rod 132 can provide a reverse damping force to the abutment portion 211, hindering the front end of the door cover 2 from descending, and achieving the effect of the door cover 2 slowly descending.
[0069] It should be noted that in some other embodiments, the damper 13 may also be arranged at an angle. The extending direction of the damper 13 may be at a certain angle to the horizontal direction of the housing 1, or the extending direction of the damper 13 may be at a certain angle to the front-rear direction of the housing 1.
[0070] In some embodiments, a damping medium (not shown in the figure) may be provided in the damper 13. The damping medium may be provided in the cylinder 131. When the door cover 2 descends to close the clothing inlet 10, the abutment portion 211 pushes the piston rod 132 to move inside the cylinder 131, compressing the damping medium in the cylinder 131, so that the damping medium in the cylinder 131 can provide a reverse damping force for the piston rod 132, and the damping force is transmitted to the abutment portion 211 through the piston rod 132, thereby achieving a slow-descent effect of the door cover 2.
[0071] See also Fig. 9 and Fig.10 As shown, in some embodiments, when the door cover 2 is opened to the maximum angle, the door cover 2 can be separated from the damper 13. At this time, the abutment portion 211 can be separated from the piston rod 132, and the damper 13 does not provide a damping force that hinders the door cover 2 from falling.
[0072] See also Figures 9 to 12 As shown, in some embodiments, when the door cover 2 is lowered from the maximum angle, as the door cover 2 rotates, the front end of the door cover 2 can gradually drop, and the abutting portion 211 can rotate toward the direction of the piston rod 132 close to the damper 13, as shown in FIG. Figures 9 to 11 Until the door cover 2 drops to a preset angle, the abutting portion 211 can abut against the damper 13, that is, the door cover 2 can abut against the damper 13. At this time, the damper 13 can generate a damping force, and the damper 13 can provide a damping force in the opposite direction of the falling direction to the abutting portion 211 of the door cover 2, such as Fig.11 The damper 13 provides a reverse damping force until the door cover 2 completely closes the clothing loading port 10. Figure 7 Status shown.
[0073] Fig.13 yes Figure 3 The structural schematic diagram in which the door cover 2 is removed. Fig.14 yes Fig.13 A schematic diagram of the decomposed structure. Fig.15 yes Fig.14 Schematic diagram of the enlarged structure of the F region in the middle. Fig.16 yes Fig.15 A schematic diagram of the decomposed structure.
[0074] See also Figures 13 to 16 As shown, in some embodiments, a rotating shaft bracket 12 may be provided on the top of the housing 1. A rotating shaft portion 121 may be formed protrudingly on the top surface of the rotating shaft bracket 12. The rotating shaft bracket 12 may be fixed inside the surrounding frame 11. The rotating shaft portion 121 may be exposed on the top surface of the surrounding frame 11. The rotating shaft portion 121 may be fixed to the top of the surrounding frame 11 through the rotating shaft bracket 12, so that the rotating shaft portion 121 is rotatably connected to the door cover 2.
[0075] In some embodiments, the shaft bracket 12 can be arranged on one side of the damper 13. The abutment portion 211 can be arranged on one side of the axial direction of the avoidance groove 20 of the door cover 2. The damper 13 can be arranged on the same side of the axial direction of the shaft portion 121. When the door cover 2 rotates relative to the shaft portion 121, the abutment portion 211 can rotate along the axis of the shaft portion 121, so that the abutment portion 211 and the damper 13 abut against each other.
[0076] See also Figures 8 to 16 As shown, in some embodiments, a limit baffle 122 may be protruding from the side wall of the shaft bracket 12. The limit baffle 122 may be extended toward one side of the damper 13. The shaft bracket 12 can be detachably fixed to the top of the casing 1. The shaft bracket 12 can be detachably fixed inside the surrounding frame 11. When the shaft bracket 12 is fixed to the top of the casing 1, the limit baffle 122 may be arranged on the top of the damper 13. The limit baffle 122 can clamp and fix the damper 13 between the bottom surface of the limit baffle 122 and the casing 1, that is, clamp and fix the damper 13 between the bottom surface of the limit baffle 122 and the surrounding frame 11, which can simplify the installation and fixing structure of the damper 13 and reduce the difficulty of installation.
[0077] See also Figure 15 to Figure 16 As shown, in some embodiments, a first mounting groove 111 may be provided on the top surface of the surrounding frame 11. The first mounting groove 111 may be arranged on the top of the housing 1. The rotating shaft bracket 12 may be fixedly installed in the first mounting groove 111.
[0078] In some embodiments, the front end of the first mounting groove 111 can be exposed on the top surface of the housing 1. The front end of the first mounting groove 111 can be exposed on the top surface of the surrounding frame 11. The shaft portion 121 can be arranged on the top surface of the front end of the shaft bracket 12. When the shaft bracket 12 is fixedly installed in the first mounting groove 111, the shaft portion 121 can be exposed on the top surface of the housing 1, and the shaft portion 121 can be exposed on the top surface of the surrounding frame 11.
[0079] See also Figure 15 to Figure 16 As shown, in some embodiments, a second mounting groove 112 may be provided on the top surface of the frame 11. The second mounting groove 112 may be installed and arranged on the top of the housing 1. The damper 13 may be fixedly installed and arranged in the second mounting groove 112. The second mounting groove 112 may be arranged on one side of the first mounting groove 111. The second mounting groove 112 may be arranged adjacent to the first mounting groove 111. The limiting baffle 122 may extend into and be arranged in the second mounting groove 112, thereby clamping and fixing the damper 13 in the second mounting groove 112.
[0080] In some embodiments, the front end of the second mounting groove 112 can be exposed on the top surface of the casing 1. The front end of the second mounting groove 112 can be exposed on the top surface of the surrounding frame 11. The piston rod 132 can be arranged at the front end of the cylinder 131. The piston rod 132 can be arranged at the front end of the second mounting groove 112. The cylinder 131 can be arranged at the rear end of the second mounting groove 112. When the damper 13 is fixedly installed in the second mounting groove 112, the front end of the piston rod 132 can be exposed on the top surface of the casing 1, and the front end of the piston rod 132 can be exposed on the top surface of the surrounding frame 11, so that the abutment portion 211 of the door cover 2 can abut against each other.
[0081] See also Figures 13 to 16 As shown, in some embodiments, a top cover 14 may be provided on the top of the casing 1. The top cover 14 may be provided on the top of the surrounding frame 11. The top cover 14 may be provided on the back side of the door cover 2. The top cover 14 may be provided on the top surface of the rear end of the surrounding frame 11. The top cover 14 may be provided on the back side of the clothing loading port 10. When the top cover 14 is covered on the top surface of the surrounding frame 11, the top cover 14 may be covered above the top of the first mounting groove 111 and the second mounting groove 112. The top cover 14 may be covered above the top of the shaft bracket 12 and the damper 13. The front ends of the first mounting groove 111 and the second mounting groove 112 may be exposed on the front side of the top cover 14. The shaft portion 121 of the shaft bracket 12 and the front end of the damper 13 may be exposed on the front side of the top cover 14.
[0082] Fig.17 yes Figure 3 Schematic diagram of the structure of the middle door cover 2 and the shaft support 12. Fig.18 yes Fig.17 Schematic diagram of the enlarged structure of the G region in the middle.
[0083] See also Figures 8 to 18 As shown, in some embodiments, a limiting rib 1221 may be convexly provided on the bottom surface of the limiting baffle 122. The limiting rib 1221 may be arranged at the front end of the cylinder 131. The limiting rib 1221 may cooperate with the rear end groove wall of the second mounting groove 112 to limit and fix the cylinder 131 in the second mounting groove 112, thereby preventing the cylinder 131 from moving forward and backward in the second mounting groove 112.
[0084] See also Figures 3 to 18 As shown, in some embodiments, a torsion spring 3 may be provided between the door cover 2 and the top of the housing 1. The torsion spring 3 may be used to provide a torsion force. The torsion spring 3 may be arranged at the rotation connection between the door cover 2 and the housing 1. One end arm of the torsion spring 3 may be connected to the housing 1. The other end arm of the torsion spring 3 may be connected to the door cover 2.
[0085] After the door cover 2 is opened, the torsion spring 3 can always generate a torsion force, and the torsion force of the torsion spring 3 can prevent the door cover 2 from falling and closing, so that the door cover 2 can fall slowly.
[0086] See also Fig. 9 and Fig.10 As shown, in some embodiments, when the door cover 2 is opened to the maximum angle, the torsion spring 3 can remain against the door cover 2, and the torsion of the torsion spring 3 can continue to prevent the door cover 2 from falling and closing, so that the door cover 2 can fall slowly. At this time, the damper 13 can be separated from the door cover 2. The damper 13 does not provide a damping force to prevent the door cover 2 from falling.
[0087] See also Figures 9 to 12 As shown, in some embodiments, when the door cover 2 is lowered from the maximum angle, the torsion force of the torsion spring 3 can continue to prevent the door cover 2 from falling and closing, so that the door cover 2 can slowly fall, such as Figures 9 to 11 The state shown. When the door cover 2 drops to a preset angle, the door cover 2 can abut against the damper 13. At this time, the reverse damping force generated by the damper 13 and the torsion force of the torsion spring 3 can act on the door cover 2 together, and together prevent the door cover 2 from falling and closing, so that the door cover 2 can drop slowly.
[0088] It should be noted that, during the idle stroke from the door cover 2 falling from the maximum angle to the door cover 2 before it contacts the damper 13, the torsion force of the torsion spring 3 can always effectively hinder the door cover 2 from falling, and effectively reduce the speed of the door cover 2 before it contacts the damper 13, which is beneficial to ensure the buffering effect of the damper 13 and improve the service life of the damper 13.
[0089] In some embodiments, when the door cover 2 descends, as the door cover 2 gradually descends, the torsion force of the torsion spring 3 can gradually increase, thereby gradually improving the slow-descent effect of the torsion spring 3 on the door cover 2.
[0090] Fig.19 yes Fig.17 A schematic diagram of the exploded structure of the middle door cover 2 from another viewing angle. Fig. 20 yes Fig.19 Schematic diagram of the enlarged structure of the middle H region.
[0091] See also Figures 3 to 20 As shown, in some embodiments, the torsion spring 3 can be arranged inside the door cover 2. One end arm of the torsion spring 3 can abut against the inner wall of the door cover 2. The other end arm of the torsion spring 3 can extend into the avoidance groove 20, extend into the shaft portion 121, and abut against the inner wall of the shaft portion 121.
[0092] It should be noted that, in some other embodiments, the main body of the torsion spring 3 may also be disposed in the shaft portion 121. One end arm of the torsion spring 3 may abut against the inner wall of the shaft portion 121. The other end arm of the torsion spring 3 may extend into the interior of the door cover 2 through the groove wall of the avoidance groove 20 and abut against the inner wall of the door cover 2.
[0093] Fig.21 yes Fig.18 Schematic diagram of the structure of the central rotating shaft bracket 12, the rotating shaft member 4 and the torsion spring 3. Fig. 22 yes Fig.21 A cross-sectional schematic diagram of .
[0094] See also Figures 18 to 22 As shown, in some embodiments, a receiving chamber 120 may be provided inside the rotating shaft portion 121. The receiving chamber 120 may be arranged inside the rotating shaft bracket 12. One end of the receiving chamber 120 may extend to the axis of the rotating shaft portion 121. An opening groove 1211 may be formed at one axial end of the rotating shaft portion 121. The opening groove 1211 may communicate with the receiving chamber 120. One end arm of the torsion spring 3 may extend from the opening groove 1211 into the receiving chamber 120 and abut against the inner wall of the receiving chamber 120.
[0095] In some embodiments, one end of the accommodating cavity 120 away from the axis of the rotating shaft portion 121 may be exposed on the bottom surface of the rotating shaft bracket 12 , so that one end of the torsion spring 3 can be conveniently installed and fixed in the accommodating cavity 120 .
[0096] See also Figures 18 to 22As shown, in some embodiments, a rotating shaft member 4 may be provided in the door cover 2. The rotating shaft member 4 may be arranged on one side of the avoidance groove 20. One end of the rotating shaft member 4 may be arranged inside the door cover 2. The other end of the rotating shaft member 4 may extend into the avoidance groove 20 and rotatably extend into the opening groove 1211 arranged in the rotating shaft portion 121. When the door cover 2 rotates, the rotating shaft member 4 may rotate relative to the rotating shaft portion 121.
[0097] In some embodiments, one end of the torsion spring 3 can be inserted into the rotating shaft 4. After passing through the rotating shaft 4, one end of the torsion spring 3 can extend into the rotating shaft portion 121.
[0098] In some embodiments, the torsion spring 3 and the damper 13 may be arranged on opposite sides of the shaft portion 121 of the shaft support 12 in the axial direction.
[0099] See also Figures 18 to 22 As shown, in some embodiments, an axial hole 40 that runs axially through the rotating shaft 4 may be provided. One end of the torsion spring 3 can be inserted into the axial hole 40 of the rotating shaft 4. The axial hole 40 may be connected to the opening groove 1211 and the accommodating cavity 120. One end of the torsion spring 3 may pass through the axial hole 40 of the rotating shaft 4 and extend into the accommodating cavity 120 arranged in the rotating shaft portion 121.
[0100] See also Fig.18 As shown, in some embodiments, a through hole 201 may be provided on the side wall of the avoidance groove 20 near the shaft member 4. One end of the shaft member 4 may pass through the through hole 201 and extend into the avoidance groove 20. Figures 18 to 22 As shown, in some embodiments, a rotation connection portion 1212 may be protruded from one end of the rotation shaft portion 121 away from the rotation shaft member 4. The rotation connection portion 1212 may be rotationally connected to a side wall of the avoidance groove 20 away from the rotation shaft member 4. One axial end of the rotation shaft portion 121 may be rotationally connected to the rotation shaft member 4. The other axial end of the rotation shaft portion 121 may be rotationally connected to a side wall of the avoidance groove 20 through the rotation connection portion 1212, so that the rotation shaft portion 121 can be stably limited in the avoidance groove 20 for rotation.
[0101] See also Fig.17 and Fig.18 As shown, in some embodiments, a rotation connection hole 202 may be provided on the side wall of the avoidance groove 20 away from the rotating shaft member 4. The rotation connection portion 1212 may be rotatably extended into the rotation connection hole 202. Figure 6 and Fig. 20 As shown, in some embodiments, a mounting groove 212 may be provided inside the door cover 2. The main body of the torsion spring 3 may be provided in the mounting groove 212. The mounting groove 212 may be provided on a side of the rotating shaft member 4 away from the avoidance groove 20.
[0102] See also Figures 3 to 20 As shown, in some embodiments, the door cover 2 may include a cover frame 21. The cover frame 21 may be a rectangular ring structure. When the door cover 2 closes the clothing loading port 10, the cover frame 21 may be arranged around the clothing loading port 10. The abutment portion 211 may be convexly formed at the rear edge of the bottom surface of the cover frame 21. The avoidance groove 20 may be concavely arranged on the bottom surface of the cover frame 21. The assembly groove 212 may be formed inside the cover frame 21. The assembly groove 212 may be arranged on one side of the avoidance groove 20.
[0103] In some embodiments, the door cover 2 may include a panel 22. The panel 22 is covered on the top surface of the cover frame 21. When the door cover 2 closes the clothing loading port 10, the panel 22 may cover the entire clothing loading port 10.
[0104] See also Fig.19 As shown, in some embodiments, the door cover 2 may include a clamping plate 23. The panel 22 may be covered on the top surface of the cover frame 21. The clamping plate 23 may be provided between the top surface of the cover frame 21 and the bottom surface of the panel 22. The torsion spring 3 may be clamped and fixed between the clamping plate 23 and the cover frame 21. The assembly groove 212 may be formed between the clamping plate 23 and the cover frame 21. One end arm of the torsion spring 3 may abut against the clamping plate 23.
[0105] In some embodiments, the clamping plate 23 may be disposed on the top surface of the rear end of the cover frame 21. The clamping plate 23 may be disposed between the top surface of the rear end of the cover frame 21 and the bottom surface of the rear end of the panel 22.
[0106] See also Fig.19 As shown, in some embodiments, two clamping plates 23 may be provided. The two clamping plates 23 may be respectively arranged on the left and right sides of the top surface of the rear end of the cover frame 21. The two clamping plates 23 may respectively clamp a torsion spring 3 between the top surface of the cover frame 21 and the bottom surface of the panel 22.
[0107] See also Fig.19 As shown, in some embodiments, the door cover 2 may include a front support plate 24. The front support plate 24 may be covered on the top surface of the front end of the cover frame 21. The clamping plate 23 may be provided between the top surface of the front end of the cover frame 21 and the bottom surface of the front end of the panel 22. The front end of the panel 22 may be fixed on the top surface of the front support plate 24. The rear end of the panel 22 may be fixed on the top surface of the clamping plate 23.
[0108] Based on the above technical solution, the embodiment of the utility model has at least the following advantages and positive effects:
[0109] In the pulsator washing machine of the embodiment of the utility model, the door cover 2 is rotatably arranged on the top of the casing 1, so that the clothing loading port 10 on the top of the casing 1 can be opened and closed. The torsion spring 3 is arranged at the rotation connection between the door cover 2 and the casing 1. After the door cover 2 is opened, the torsion spring 3 can always provide a torsion force to prevent the door cover 2 from falling. When the door cover 2 is closed from the maximum angle, the torsion force of the torsion spring 3 can first provide resistance for the door cover 2, so that the door cover 2 slowly falls. When the door cover 2 falls to a preset angle, the door cover 2 can abut against the damper 13, and the damping force of the damper 13 can jointly prevent the door cover 2 from falling with the torsion force of the torsion spring 3. The torsion spring 3 can solve the problem of the empty stroke before the door cover 2 contacts the damper 13, so that the door cover 2 can be closed slowly. In addition, the torsion force of the torsion spring 3 can effectively reduce the speed of the door cover 2 before contacting the damper 13, which is conducive to ensuring the buffering effect of the damper 13 and improving the service life of the damper 13.
[0110] Although the utility model has been described with reference to several typical embodiments, it should be understood that the terms used are illustrative and exemplary, rather than restrictive. Since the utility model can be implemented in a variety of forms without departing from the spirit or essence of the utility model, it should be understood that the above-mentioned embodiments are not limited to any of the aforementioned details, but should be widely interpreted within the spirit and scope defined by the attached claims, so all changes and modifications falling within the scope of the claims or their equivalents should be covered by the attached claims.
Claims
1. A pulsator washing machine, characterized in that: include: A casing, wherein the casing is configured as an outer shell of the pulsator washing machine; A clothing inlet is provided on the top of the housing; A drum assembly is disposed in the housing, a washing cavity is formed in the drum assembly, and the washing cavity is connected to the clothing loading port; A door cover, the door cover is rotatably arranged on the top of the housing, and the door cover is used to open and close the clothing loading port; A torsion spring, which is arranged at the rotation connection between the door cover and the housing, one end arm of the torsion spring is connected to the housing, and the other end arm of the torsion spring is connected to the door cover; A damper, the damper being arranged on the top of the casing; Wherein, when the door cover is opened, the torsion spring can always generate torsion, and the torsion of the torsion spring can prevent the door cover from falling; When the door cover drops to a preset angle, the door cover can abut against the damper, and the damper can provide a damping force in the opposite direction to the drop of the door cover.
2. The pulsator washing machine according to claim 1, characterized in that: When the door cover descends, the torsion force of the torsion spring gradually increases.
3. The pulsator washing machine according to claim 1, characterized in that: A rotating shaft portion is convexly provided on the top surface of the housing, and a avoiding groove arranged opposite to the rotating shaft portion is concavely provided on the side edge of the door cover; The rotating shaft portion can be rotatably extended into the avoiding groove.
4. The pulsator washing machine according to claim 3, characterized in that: The torsion spring is arranged inside the door cover; one end arm of the torsion spring abuts against the inner wall of the door cover; the other end arm of the torsion spring extends into the avoidance groove and extends into the rotating shaft portion.
5. The pulsator washing machine according to claim 4, characterized in that: A receiving cavity is provided in the rotating shaft portion, and one end of the receiving cavity extends to the axis center of the rotating shaft portion; An open groove is formed at one axial end of the rotating shaft portion, and the open groove is connected to the accommodating cavity; One end arm of the torsion spring extends from the opening slot into the accommodating cavity and abuts against the inner wall of the accommodating cavity.
6. The pulsator washing machine according to claim 5, characterized in that: A rotating shaft is provided in the door cover, and the rotating shaft is provided at one side of the avoidance groove. One end of the rotating shaft extends into and is arranged in the avoidance groove, and can be rotatably extended into and arranged in the opening groove; one end arm of the torsion spring is passed through the rotating shaft.
7. The pulsator washing machine according to claim 4, characterized in that: The door cover comprises a cover frame, a panel and a clamping plate; the panel is covered on the top surface of the cover frame, and the clamping plate is arranged between the top surface of the cover frame and the bottom surface of the panel; The torsion spring is clamped and fixed between the clamping plate and the cover frame.
8. The pulsator washing machine according to claim 3, characterized in that: The avoidance groove is recessed on the bottom surface of the rear edge of the door cover; the rotating shaft is arranged at the rear edge of the clothing loading port, and the damper is arranged on one side of the rotating shaft.
9. The pulsator washing machine according to claim 8, characterized in that: An abutment portion is convexly provided on the rear edge of the door cover, and the abutment portion is arranged on one side of the avoidance groove; When the door cover drops to a preset angle, the abutting portion can abut against the damper, so that the damper generates a damping force.
10. The pulsator washing machine according to claim 8, characterized in that: A shaft bracket is provided on the top of the housing, and the shaft portion is convexly provided on the top surface of the shaft bracket; the shaft bracket is provided on one side of the damper, and a limit baffle extending toward one side of the damper is convexly provided on the side wall of the shaft bracket; The rotating shaft bracket is detachably fixed on the top of the casing, and the damper is clamped and fixed between the bottom surface of the limiting baffle and the casing.