Reciprocating motion driving device and cradle machine

Abstract

The utility model relates to a reciprocating motion driving device and a cradle machine. The two ends of a first spring of the device are connected with a fixing support and a cradle respectively, a driving assembly and a push rod are installed on the fixing support, the push rod is movably inserted into the fixing support and at least forms a first position and a second position, and the first spring is connected with the push rod; the controller controls the driving assembly to push the push rod to move from the first position to the second position, the first spring elastically deforms to generate elastic force, and when the first spring rebounds, the driving assembly is controlled to be in transmission fit with the push rod or the push rod is pushed to move in the direction opposite to the gravity of the hanging basket; and the push rod moves from the second position to the first position until the push rod reaches the first position, and the operation is repeated to enable the hanging basket to move up and down. Based on mutual counteraction of the gravity of the hanging basket and the elastic force of the first spring, the hanging basket can move up and down only by applying small acting force to the push rod, and then the output power of the driving assembly is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of baby products, and in particular to a reciprocating motion drive device and a cradle. Background Art

[0002] A baby cradle is a device used for babies to rest. It can be used to simulate the rocking movement of a baby being hugged to help the baby fall asleep quickly.

[0003] In the prior art, in order to reduce the disadvantage that the baby cradle needs to be pushed manually when it is rocked, an electric baby cradle is designed. The electric baby cradle is divided into two types: horizontal reciprocating rocking and vertical reciprocating rocking. For the vertical reciprocating rocking cradle machine on the market, since it is necessary to overcome the gravity of the baby when lifting the hanging basket, a relatively large power motor drive is required, resulting in high power consumption of the cradle machine. Utility Model Content

[0004] Based on this, it is necessary to provide a reciprocating motion drive device and a cradle to address the problem of high output power of the cradle.

[0005] The present application discloses a reciprocating motion driving device, which includes a fixed bracket, a first spring, a push rod, a driving assembly and a controller, wherein:

[0006] The fixed bracket is provided with a sliding groove;

[0007] One end of the first spring is connected to the fixed bracket, and the other end is connected to the hanging basket;

[0008] A push rod, the push rod is movably inserted in the sliding groove and forms at least a first position and a second position relative to the sliding groove, the first spring at least partially away from the connection is connected to the push rod, and the direction from the first position to the second position is the same as the gravity direction of the hanging basket;

[0009] The drive assembly is electrically connected to the controller, and the drive assembly is in transmission cooperation with the push rod. When the push rod is in the first position, the controller controls the drive assembly to push the push rod to move toward the second position. When the push rod is in the second position, the controller controls the drive assembly to release the transmission cooperation with the push rod or the controller controls the drive assembly to push the push rod to move toward the first position.

[0010] The first aspect of the present application discloses a reciprocating drive device, wherein the two ends of the first spring are respectively connected to the fixed bracket and the hanging basket, a driving assembly and a push rod are installed on the fixed bracket, the push rod is movably inserted on the fixed bracket and forms at least a first position and a second position, the first spring is connected to the push rod at one end away from the fixed bracket, the driving assembly is electrically connected to the controller, the driving assembly and the push rod are in transmission cooperation, when the push rod is in the first position, the controller can control the driving assembly to push the push rod to move in the direction of gravity of the hanging basket, so that the push rod moves from the first position to the second position, thereby causing the first spring to undergo elastic deformation and generate elastic force, when the first spring overcomes the gravity of the hanging basket and rebounds, the controller controls the driving assembly to release the transmission cooperation with the push rod or the controller controls the driving assembly to push the push rod to move in the opposite direction of the gravity of the hanging basket, so that the push rod moves from the second position to the first position, until the push rod reaches the first position, and the above operation is repeated so that the hanging basket can move up and down. The present application is based on the mutual offset of the gravity of the hanging basket and the elastic force of the first spring. Through the mutual cooperation of the driving assembly, the first spring and the push rod, the up and down movement of the hanging basket can be achieved by applying a small force to the push rod, thereby reducing the output power of the driving assembly.

[0011] In one embodiment, the driving assembly includes a motor module, a first rotating wheel, a first roller, a first connecting rod, a pull rope and a second spring. The first rotating wheel is drivingly connected to the output shaft of the motor module, the first connecting rod is eccentrically connected to the first rotating wheel, the second spring is connected to the fixed bracket, the first roller is rotatably set on the push rod, one end of the pull rope is connected to the first connecting rod, and the other end is connected to the second spring, and the pull rope is partially sleeved on the first roller.

[0012] The reciprocating motion drive device in the above embodiment further defines that the first connecting rod is eccentrically connected to the first rotating wheel, the two ends of the pull rope are respectively connected to the first connecting rod and the second spring, the middle section of the pull rope is wrapped around the roller, and during the process of the motor module driving the first rotating wheel to move in a circular motion, the first connecting rod performs eccentric motion relative to the first rotating wheel, and the first connecting rod pulls the pull rope to drive the push rod to realize up and down reciprocating motion in the sliding groove, thereby realizing the up and down reciprocating motion of the hanging basket through a smaller force.

[0013] In one embodiment, the driving assembly includes a motor module, a second rotating wheel and a second connecting rod, the second rotating wheel is drivingly connected to the output shaft of the motor module, one end of the second connecting rod is eccentrically connected to the circumferential surface of the second rotating wheel, and the other end is connected to the push rod.

[0014] The reciprocating motion drive device in the above embodiment further defines that one end of the second connecting rod is eccentrically connected to the circumferential surface of the second rotating wheel, and the other end is connected to the push rod. In the process of the motor module driving the second rotating wheel to move in a circular motion, the push rod is driven by the second connecting rod to realize up and down reciprocating motion in the sliding groove, thereby realizing the up and down reciprocating motion of the hanging basket through a smaller force.

[0015] In one embodiment, the driving assembly includes a motor module, an eccentric wheel and a second roller, the eccentric wheel is eccentrically connected to the output shaft of the motor module, the second roller is arranged on the push rod, when the push rod is in the first position, the eccentric wheel abuts against the push rod, and when the push rod is in the second position, the eccentric wheel is disengaged from the abutment with the push rod.

[0016] The reciprocating motion drive device in the above embodiment further limits that the motor module can drive the eccentric wheel to perform eccentric motion. When the eccentric wheel rotates downward, it abuts against the second roller, and the hanging basket moves downward due to the combined force of the eccentric wheel thrust and the gravity of the hanging basket. When the eccentric wheel rotates upward, it disengages from the abutment with the second roller, and the hanging basket moves upward due to the elastic force of the first spring, thereby realizing the up and down reciprocating motion of the hanging basket.

[0017] In one of the embodiments, the motor module includes a driving motor and a reduction gear set, the driving motor is drivingly connected to the reduction gear set, and the reduction gear set is provided with the output shaft.

[0018] The reciprocating motion driving device in the above embodiment further defines that the driving motor is connected to the rotating wheel or the eccentric wheel through a reduction gear set, thereby reducing the rotation speed of the driving motor and providing a greater output torque.

[0019] In one of the embodiments, a spiral groove is formed on the surface of the push rod exposed from the sliding groove and close to one end of the hanging basket, the spiral groove is adapted to the first spring, and a portion of the first spring away from the connection with the fixed bracket is engaged with the spiral groove.

[0020] The reciprocating motion drive device in the above embodiment further defines a push rod exposed in the sliding groove and provided with a spiral groove compatible with the first spring at one end close to the hanging basket. During the assembly process of the first spring and the push rod, the push rod can extend to the interior of the first spring through a threaded connection and stay at the end of the first spring away from the fixed bracket. Through the cooperation between multiple turns of the first spring and the spiral groove, the force exerted by the push rod on the first spring is circumferentially uniform during the sliding process of the push rod, and it is not easy for the first spring to shake left and right, thereby improving the stability of the device.

[0021] In one of the embodiments, the fixing bracket includes a mounting plate and a guide shell, the sliding groove is formed inside the guide shell, the guide shell is detachably connected to the mounting plate, and the first spring is hooked on the mounting plate.

[0022] The reciprocating motion driving device in the above embodiment further defines that the guide housing provided with the sliding groove and the mounting plate are detachably connected, so as to facilitate the overall assembly of the device and improve efficiency.

[0023] In one embodiment, the mounting plate is provided with a plurality of first through holes, the plurality of first through holes are spaced apart and distributed on the left and right sides of the mounting plate, and the first spring passes through the plurality of first through holes.

[0024] The reciprocating motion drive device in the above embodiment further defines that a plurality of first through holes are opened on the left and right sides of the mounting plate, and the first spring passes through the plurality of first through holes in sequence, which not only increases the friction between the first spring and the mounting plate, making it difficult for the first spring to fall off the mounting plate, but also prevents the first spring from sliding left and right during the sliding process of the push rod, thereby improving the stability of the device.

[0025] In one embodiment, the controller includes a position sensor, which is used to monitor the position change of the push rod and feed back to the drive assembly.

[0026] The cradle provided in the second aspect of the present application comprises: a reciprocating motion drive device as described in any one of the above items; a base, the base is supported on the ground, and the fixed bracket is connected to the base; and a hanging basket, the hanging basket is connected to an end of the first spring away from the fixed bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 An exploded view of a reciprocating motion drive device in one embodiment;

[0028] Figure 2 This is one of the structural schematic diagrams of a reciprocating motion driving device in one embodiment;

[0029] Figure 3 This is a second structural schematic diagram of a reciprocating motion driving device in an embodiment;

[0030] Figure 4 This is a third structural schematic diagram of a reciprocating motion driving device in an embodiment;

[0031] Figure 5 This is a fourth structural schematic diagram of a reciprocating motion driving device in one embodiment;

[0032] Figure 6 This is a fifth structural diagram of a reciprocating motion driving device in one embodiment;

[0033] Figure 7 This is a sixth structural schematic diagram of a reciprocating motion driving device in one embodiment;

[0034] Figure 8 This is a seventh structural schematic diagram of a reciprocating motion driving device in one embodiment;

[0035] Fig. 9 This is an eighth structural schematic diagram of a reciprocating motion driving device in one embodiment;

[0036] Fig.10 FIG. 9 is a ninth structural diagram of a reciprocating motion drive device in an embodiment.

[0037] Reference numerals:

[0038] 10 fixing bracket, 11 mounting plate, 12 guide housing, 121 front guide housing, 122 rear guide housing, 101 sliding groove, 102 first through hole;

[0039] 20 first spring;

[0040] 30 push rod, 301 spiral groove;

[0041] 40 driving assembly, 41 motor module, 411 driving motor, 412 reduction gear set, 42a first rotating wheel, 43a first roller, 44a first connecting rod, 45 pull rope, 46 second spring, 42b second rotating wheel, 43b second connecting rod, 42c eccentric wheel, 43c second roller, 401 second through hole;

[0042] 50 hanging plate, 501 third through hole. DETAILED DESCRIPTION

[0043] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0044] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so as to describe the embodiments of the present application described herein.

[0045] like Figures 1 to 10 As shown, this embodiment provides a reciprocating motion driving device, including:

[0046] A fixed bracket 10, wherein the fixed bracket 10 is provided with a sliding groove 101;

[0047] A first spring 20, one end of the first spring 20 is connected to the fixed bracket 10, and the other end is connected to the hanging basket;

[0048] A push rod 30 is movably inserted in the sliding groove 101 and forms at least a first position and a second position relative to the sliding groove 101. A first spring 20 at least partially away from the connection is connected to the push rod 30, and a direction from the first position to the second position is the same as a gravity direction of the hanging basket;

[0049] The drive component 40 and the controller are electrically connected to the controller. The drive component 40 and the push rod 30 are in transmission cooperation. When the push rod 30 is in the first position, the controller controls the drive component 40 to push the push rod 30 to move to the second position. When the push rod 30 is in the second position, the controller controls the drive component 40 to release the transmission cooperation with the push rod 30 or the controller controls the drive component 40 to push the push rod 30 to move to the first position.

[0050] Among them, the fixed bracket 10 can be but not limited to a metal shell or a non-metal shell; for example, the fixed bracket 10 is a stainless steel shell structure to improve the strength of the fixed bracket 10 and is not prone to deformation or breakage. The fixed bracket 10 can be used to fix the first spring 20 and the drive component 40. For example, a plurality of first through holes 102 are provided on the fixed bracket 10, and the first spring 20 passes through the plurality of first through holes 102 so that one end of the first spring 20 is fixed to the fixed bracket 10; in addition, the drive component 40 and the fixed bracket 10 can be fixedly installed by using screws and threaded holes. In addition, the fixed bracket 10 can be connected to the base so that the fixed bracket 10 is away from the ground. It should be noted that there needs to be a sufficient distance between the fixed bracket 10 and the ground to prevent the hanging basket from colliding with the ground when it moves toward the ground.

[0051] The push rod 30 may be a long strip shell structure matching the shape of the sliding groove 101. The push rod 30 may slide back and forth in the sliding groove 101 and form at least a first position and a second position. The push rod 30 is connected to one end of the first spring 20 away from the connection. When the push rod 30 slides relative to the sliding groove 101, the push rod 30 may cause the first spring 20 to undergo elastic deformation. Specifically, when the push rod 30 moves from the first position to the second position, the first spring 20 undergoes elastic deformation and the elastic potential energy gradually increases. The direction from the first position to the second position is the same as the gravity direction of the hanging basket. As long as a force in the same direction as the gravity direction of the hanging basket is applied to the push rod 30, the first spring 20 may undergo elastic deformation, that is, the first spring 20 is stretched in the gravity direction of the hanging basket.

[0052] The first spring 20 can be a cylindrical tension spring, one end of the first spring 20 is connected to the fixed bracket 10, and the other end is connected to the hanging basket. When normally stationary, the coils of the tension spring are generally tight without gaps or the gaps are fixed at a certain value. Under the action of the gravity of the hanging basket and / or the thrust of the push rod 30, the first spring 20 can be stretched to generate elastic force. When the elastic force is greater than the combined force of the gravity of the hanging basket and the thrust of the push rod 30, the first spring 20 restores its elastic deformation.

[0053] The controller may, but is not limited to, output a control signal and drive assembly 40 according to the position change of push rod 30 or the motion state of drive assembly 40. For example, the controller may output a control signal and drive assembly 40 by monitoring the position change of push rod 30 through a sensor.

[0054] The drive assembly 40 can control the movement of the push rod 30 according to the signal of the controller. Specifically, when the controller obtains that the push rod 30 is in the first position, the control drive assembly 40 applies a first force on the push rod 30 in the same direction as the gravity of the hanging basket. At this time, the push rod 30 drives the first spring 20 to stretch and elastically deform with elastic force. When the controller obtains that the push rod 30 reaches the second position, the control drive assembly 40 and the push rod 30 are released from the transmission, so that the drive assembly 40 cancels the first force on the push rod 30, so that the elastic force of the first spring 20 is greater than the gravity of the hanging basket, and the first spring 20 rebounds until the controller obtains that the push rod 30 reaches the second position. When the push rod 30 reaches the first position, the control driving assembly 40 pushes the push rod 30 to move from the first position to the second position, and the above operation is repeated to make the hanging basket move up and down, or when the controller obtains that the push rod 30 reaches the second position, the drive assembly 40 applies a second force on the push rod 30 that is opposite to the direction of the gravity of the hanging basket, and the second force is in the same direction as the elastic force, so that the first spring 20 rebounds, until the controller obtains that the push rod 30 reaches the first position, the control driving assembly 40 pushes the push rod 30 to move from the first position to the second position, and the above operation is repeated to make the hanging basket move up and down.

[0055] In the reciprocating drive device in the above embodiment, the two ends of the first spring 20 are respectively connected to the fixed bracket 10 and the hanging basket, and a driving assembly 40 and a push rod 30 are installed on the fixed bracket 10. The push rod 30 is movably inserted on the fixed bracket 10 and forms at least a first position and a second position. The first spring 20 is connected to the push rod 30 at one end away from the fixed bracket 10, and the driving assembly 40 is electrically connected to the controller. The driving assembly 40 and the push rod 30 are in transmission cooperation. When the push rod 30 is in the first position, the controller can control the driving assembly 40 to push the push rod 30 to move in the direction of gravity of the hanging basket, so that the push rod 30 moves from the first position to the second position, thereby causing the first spring 20 to undergo elastic deformation and generate elastic force. When the first spring 20 overcomes the gravity of the hanging basket and rebounds, the controller controls the driving assembly 40 to release the transmission cooperation with the push rod 30 or the controller controls the driving assembly 40 to push the push rod 30 in the opposite direction of the gravity of the hanging basket, so that the push rod 30 moves from the second position to the first position until the push rod 30 reaches the first position. Repeating the above operation allows the hanging basket to move up and down. The present application is based on the mutual offset of the gravity of the hanging basket and the elastic force of the first spring 20. Through the cooperation of the driving assembly 40, the first spring 20 and the push rod 30, only a small force needs to be applied to the push rod 30 to realize the up and down movement of the hanging basket, thereby reducing the output power of the driving assembly.

[0056] like Figures 1 to 4 As shown, in addition to the features of the above embodiments, the present embodiment further defines that: the driving assembly 40 includes a motor module 41, a first rotating wheel 42a, a first roller 43a, a first connecting rod 44a, a pull rope 45 and a second spring 46, the first rotating wheel 42a is drivingly connected to the output shaft of the motor module 41, the first connecting rod 44a is eccentrically connected to the first rotating wheel 42a, the second spring 46 is connected to the fixed bracket 10, the first roller 43a is rotatably set on the push rod 30, one end of the pull rope 45 is connected to the first connecting rod 44a, and the other end is connected to the second spring 46, and the pull rope 45 is partially sleeved on the first roller 43a.

[0057] The motor module 41 can drive the first rotating wheel 42a to rotate in a circle along the output shaft of the motor module 41;

[0058] The first connecting rod 44a can be a long rod-shaped structure. The first connecting rod 44a can be eccentrically connected to the circumferential surface of the first rotating wheel 42a. For example, the circumferential surface of the first rotating wheel 42a is provided with threaded holes, which are eccentrically distributed on the circumferential surface of the first rotating wheel 42a. The first connecting rod 44a is provided with a second through hole 401. A bolt successively penetrates the second through hole 401 and is threadedly connected with the threaded hole to realize the eccentric connection between the first connecting rod 44a and the first rotating wheel 42a. One end of the first connecting rod 44a moves in a circle with the first rotating wheel 42a and pulls the pull rope 45, thereby driving the push rod 30 to reciprocate up and down in the sliding groove 101.

[0059] Specifically, when the push rod 30 is in the first position, the threaded hole on the first rotating wheel 42a is in the upper half of the first rotating wheel 42a, and the second spring 46 undergoes elastic deformation, generating a pulling force in the opposite direction to the gravity of the hanging basket, thereby causing the push rod 30 to be pulled by the pull rope 45. As the first rotating wheel 42a rotates, the threaded hole on the first rotating wheel 42a falls in the lower half of the first rotating wheel 42a, and the pull rope 45 decreases in height as the first rotating wheel 42a rotates. Under the action of the gravity of the hanging basket, the first roller 43 on the push rod 30 slides relative to the pull rope 45 and the push rod 30 is pulled. 0 slides in the sliding groove 101 toward the second position, so that the first spring 20 is stretched and elastically deformed. As the first rotating wheel 42a continues to rotate, the threaded hole on the first rotating wheel 42a falls on the upper half of the first rotating wheel 42a, and the horizontal height of the first connecting rod 44a pulling the pull rope 45 rises. Under the combined force of the tension of the first spring 20 and the tension of the pull rope 45, the push rod 30 slides from the second position to the first position, continuously driving the first rotating wheel 42a to rotate, so that the motor module 41 only needs to provide a small force to achieve the up and down reciprocating motion of the hanging basket;

[0060] In addition, when the motor module 41 is stationary, the pull rope 45 and the second spring 46 are combined to form an adaptive device, and the height of the push rod 30 in the sliding groove 101 can be adaptively adjusted when the weight of the hanging basket changes. Specifically, when the weight of the hanging basket increases, the tension on the pull rope 45 increases, the second spring 46 is stretched, and the horizontal height of the pull rope 45 is reduced, thereby lowering the horizontal height of the push rod 30.

[0061] like Figures 5 to 7 As shown, in addition to the features of the above-mentioned embodiments, this embodiment further defines that: the driving assembly 40 includes a motor module 41, a second rotating wheel 42b and a second connecting rod 43b, the second rotating wheel 42b is transmission-connected to the output shaft of the motor module 41, one end of the second connecting rod 43b is eccentrically connected to the circumferential surface of the second rotating wheel 42b, and the other end is connected to the push rod 30.

[0062] Based on the fact that one end of the second connecting rod 43b is eccentrically connected to the circumferential surface of the second rotating wheel 42b and the other end is connected to the push rod 30, during the process of the motor module 41 driving the second rotating wheel 42b to move in a circle, the second connecting rod 43b drives the push rod 30 to realize up and down reciprocating motion in the sliding groove 101, thereby realizing the up and down reciprocating motion of the hanging basket with a smaller force.

[0063] The motor module 41 can drive the second rotating wheel 42 b to rotate in a circle along the output shaft of the motor module 41 .

[0064] The second connecting rod 43b can be a long rod-shaped structure. The second connecting rod 43b can be eccentrically connected to the circumferential surface of the second rotating wheel 42b. For example, the circumferential surface of the second rotating wheel 42b is provided with threaded holes, which are eccentrically distributed on the circumferential surface of the second rotating wheel 42b. The second connecting rod 43b is provided with a second through hole 401. A bolt successively penetrates the second through hole 401 and is threadedly connected with the threaded hole to realize the eccentric connection between the second connecting rod 43b and the second rotating wheel 42b. In addition, the connection between the second connecting rod 43b and the push rod 30 can also be realized by the cooperation of the bolt and the threaded hole; one end of the second connecting rod 43b performs a circular motion with the second rotating wheel 42b to drive the push rod 30 to perform an up and down reciprocating motion in the sliding groove 101. Specifically, when the push rod 30 is in the first position, During the process, the second connecting rod 43b pushes the push rod 30 to move in the direction of gravity of the hanging basket, so that the first spring 20 is stretched and elastically deformed, and the second rotating wheel 42b continues to rotate, and the threaded hole on the second rotating wheel 42b falls in the upper half area of ​​the second rotating wheel 42b. During the process, the second connecting rod 43b pushes the push rod 30 to move in the opposite direction of the gravity of the hanging basket, that is, the combined force between the thrust of the push rod 30 and the elastic force of the first spring 20 pulls the hanging basket upward, thereby realizing energy compensation and ensuring the up and down movement amplitude of the hanging basket.

[0065] like Figures 8 to 10 As shown, in addition to the features of the above embodiments, this embodiment further defines: the driving component includes a motor module 41, an eccentric wheel 42c and a second roller 43c, the eccentric wheel 42c is eccentrically connected to the output shaft of the motor module 41, the second roller 43c is arranged on the push rod 30, when the push rod 30 is in the first position, the eccentric wheel 42c is in contact with the push rod 30, and when the push rod 30 is in the second position, the eccentric wheel 42c is out of contact with the push rod 30.

[0066] Based on the motor module 41, the eccentric wheel 42c can be driven to make eccentric movement. When the eccentric wheel 42c rotates downward, it abuts against the second roller 43c, and the hanging basket moves downward due to the thrust of the eccentric wheel 42c and the gravity of the hanging basket. When the eccentric wheel 42c rotates upward, it disengages from the abutment with the second roller 43c, and the hanging basket moves upward due to the elastic force of the first spring 20, thereby realizing the up and down reciprocating motion of the hanging basket.

[0067] The output shaft of the motor module 41 is eccentrically connected to the eccentric wheel 42c, and the motor module 41 can drive the eccentric wheel 42c to perform eccentric movement. Specifically, the eccentric wheel 42c and the second roller 43c are two independent components. When the eccentric wheel 42c rotates downward and the push rod 30 is in the first position, the eccentric wheel 42c abuts against the second roller 43c, and the eccentric wheel 42c applies a force toward the gravity direction of the hanging basket to the second roller 43c, so that the first spring 20 is stretched and elastically deformed, and the push rod 30 moves from the first position to the second position. When the eccentric wheel 42c rotates upward, the eccentric wheel 42c is disengaged from the second roller 43c, and the push rod 30 moves from the second position to the first position under the action of the elastic force of the first spring 20.

[0068] like Figure 1 As shown, in addition to the features of the above embodiments, this embodiment further defines that: the motor module 41 includes a driving motor 411 and a reduction gear set 412, the driving motor 411 is transmission-connected to the reduction gear set 412, and the reduction gear set 412 is provided with an output shaft.

[0069] The driving motor 411 is connected to the second rotating wheel 42b or the eccentric wheel 42c via the reduction gear set 412, thereby reducing the rotation speed of the driving motor 411 and providing a greater output torque.

[0070] like Figure 1 As shown, in addition to the features of the above-mentioned embodiments, the present embodiment is further defined as follows: a spiral groove 301 is formed on the surface of the push rod 30 exposed from the sliding groove 101 and close to one end of the hanging basket, the spiral groove 301 is adapted to the first spring 20, and a portion of the first spring 20 away from the connection with the fixed bracket 10 is engaged with the spiral groove 301.

[0071] Based on the fact that the push rod 30 is exposed in the sliding groove 101 and a spiral groove 301 compatible with the first spring 20 is provided at one end close to the hanging basket, during the assembly process of the first spring 20 and the push rod 30, the push rod 30 can be extended to the inside of the first spring 20 by means of a threaded connection, and stay at the end of the first spring 20 away from the fixed bracket 10. Through the cooperation between multiple turns of the first spring 20 and the spiral groove 301, the force exerted by the push rod 30 on the first spring 20 is circumferentially uniform during the sliding process of the push rod 30, and it is not easy for the first spring 20 to shake left and right, thereby improving the stability of the device.

[0072] like Figure 1 As shown, in addition to the features of the above-mentioned embodiments, this embodiment further defines: the fixed bracket 10 includes a mounting plate 11 and a guide shell 12, a sliding groove 101 is formed inside the guide shell 12, the guide shell 12 is detachably connected to the mounting plate 11, and the first spring 20 is hooked on the mounting plate 11.

[0073] The guide housing 12 provided with the sliding groove 101 and the mounting plate 11 are detachably connected, which facilitates the overall assembly of the device and improves efficiency.

[0074] Among them, the guide shell 12 includes a front guide shell 121 and a rear guide shell 122, the front guide shell 121 and the rear guide shell 122 are detachably connected and the front guide shell 121 and the rear guide shell 122 are enclosed to form a sliding groove 101. Based on the detachable connection between the front guide shell 121 and the rear guide shell 122, the assembly between the push rod 30 and the guide shell 12 is facilitated.

[0075] like Figure 1 As shown, in addition to the features of the above embodiments, this embodiment further defines: the mounting plate 11 is provided with a plurality of first through holes 102 , the plurality of first through holes 102 are spaced apart and distributed on the left and right sides of the mounting plate 11 , and the first spring 20 passes through the plurality of first through holes 102 .

[0076] Based on the fact that a plurality of first through holes 102 are opened on the left and right sides of the mounting plate 11, the first spring 20 successively penetrates the plurality of first through holes 102, which not only increases the friction between the first spring 20 and the mounting plate 11, making it difficult for the first spring 20 to fall off the mounting plate 11, but also prevents the first spring 20 from sliding left and right during the sliding process of the push rod 30, thereby improving the stability of the device.

[0077] In addition to the features of the above embodiments, the present embodiment further defines that: the controller includes a position sensor, and the position sensor is used to monitor the position change of the push rod 30 and feed back to the driving assembly 40.

[0078] The position sensor may be a photoelectric position sensor. For example, when the light beam emitted by the transmitter in the sensor is blocked or reflected by the push rod 30, the receiver in the sensor receives the reflected light signal, thereby confirming that the push rod 30 is in the first position. Otherwise, the receiver does not receive the reflected light signal, thereby confirming that the push rod 30 is in the second position. It should be noted that in other embodiments, the position sensor may also provide feedback to the drive assembly 40 based on the position change of the first connecting rod 44a, the second rotating wheel 42b, or the eccentric wheel 42c. In addition, the position sensor may also be a capacitive position sensor, an inductive position sensor, an ultrasonic position sensor, etc.

[0079] This embodiment provides a cradle machine, including:

[0080] A reciprocating drive device according to any one of the above;

[0081] A base, the base is supported on the ground, and a fixed bracket 10 is connected to the base;

[0082] The hanging basket is connected to an end of the first spring 20 away from the fixed bracket 10.

[0083] Among them, Figure 1 As shown, the first spring 20 can be connected to the hanging basket through the hanging plate 50, and the hanging basket is connected to the central axis of the hanging plate 50. Specifically, a plurality of third through holes 501 are opened on the left and right sides of the hanging plate 50. The first spring 20 successively penetrates the plurality of third through holes 501, which not only increases the friction between the first spring 20 and the hanging plate 50, making it difficult for the first spring 20 to fall off the hanging plate 50, but also can concentrate the gravity of the hanging basket in the center of the hanging plate 50, and the left and right sides of the hanging plate 50 are evenly stressed, so that the hanging basket is not prone to shaking left and right.

[0084] The technical features of the above embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0085] The above embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present utility model patent shall be subject to the attached claims.

Claims

1. A reciprocating drive device, characterized in that: include: A fixed bracket (10), wherein the fixed bracket (10) is provided with a sliding groove (101); A first spring (20), one end of the first spring (20) is connected to the fixed bracket (10), and the other end of the first spring (20) is connected to the hanging basket; A push rod (30), the push rod (30) being movably inserted in the sliding groove (101) and forming at least a first position and a second position relative to the sliding groove (101), the first spring (20) at least partially away from the connection position being connected to the push rod (30), and the direction from the first position toward the second position being the same as the gravity direction of the hanging basket; A drive component (40) and a controller, wherein the drive component (40) is electrically connected to the controller, and the drive component (40) is in transmission cooperation with the push rod (30). When the push rod (30) is in the first position, the controller controls the drive component (40) to push the push rod (30) to move toward the second position. When the push rod (30) is in the second position, the controller controls the drive component (40) to release the transmission cooperation with the push rod (30) or the controller controls the drive component (40) to push the push rod (30) to move toward the first position.

2. The reciprocating motion drive device according to claim 1, characterized in that: The driving assembly (40) comprises a motor module (41), a first rotating wheel (42a), a first roller (43a), a first connecting rod (44a), a pull rope (45) and a second spring (46); the first rotating wheel (42a) is drivingly connected to the output shaft of the motor module (41); the first connecting rod (44a) is eccentrically connected to the first rotating wheel (42a); the second spring (46) is connected to the fixed bracket (10); the first roller (43a) is rotatably arranged on the push rod (30); one end of the pull rope (45) is connected to the first connecting rod (44a), and the other end is connected to the second spring (46); and the pull rope (45) is partially sleeved on the first roller (43a).

3. The reciprocating motion drive device according to claim 1, characterized in that: The driving assembly (40) comprises a motor module (41), a second rotating wheel (42b) and a second connecting rod (43b), wherein the second rotating wheel (42b) is drivingly connected to the output shaft of the motor module (41), one end of the second connecting rod (43b) is eccentrically connected to the circumferential surface of the second rotating wheel (42b), and the other end is connected to the push rod (30).

4. The reciprocating motion drive device according to claim 1, characterized in that: The driving assembly (40) comprises a motor module (41), an eccentric wheel (42c) and a second roller (43c), wherein the eccentric wheel (42c) is eccentrically connected to the output shaft of the motor module (41), and the second roller (43c) is arranged on the push rod (30). When the push rod (30) is in the first position, the eccentric wheel (42c) abuts against the push rod (30), and when the push rod (30) is in the second position, the eccentric wheel (42c) is disengaged from the abutment with the push rod (30).

5. The reciprocating motion drive device according to any one of claims 2 to 4, characterized in that: The motor module (41) comprises a driving motor (411) and a reduction gear set (412); the driving motor (411) is transmission-connected to the reduction gear set (412); and the reduction gear set (412) is provided with the output shaft.

6. The reciprocating drive device according to claim 1, characterized in that: A spiral groove (301) is formed on the surface of the push rod (30) exposed outside the sliding groove (101) and close to one end of the hanging basket. The spiral groove (301) is adapted to the first spring (20), and a portion of the first spring (20) away from the connection with the fixed bracket (10) is engaged with the spiral groove (301).

7. The reciprocating motion drive device according to claim 1, characterized in that: The fixed bracket (10) comprises a mounting plate (11) and a guide housing (12); the sliding groove (101) is formed inside the guide housing (12); the guide housing (12) is detachably connected to the mounting plate (11); and the first spring (20) is hooked on the mounting plate (11).

8. The reciprocating drive device according to claim 7, characterized in that: The mounting plate (11) is provided with a plurality of first through holes (102), the plurality of first through holes (102) being distributed at intervals on the left and right sides of the mounting plate (11), and the first spring (20) passing through the plurality of first through holes (102).

9. The reciprocating motion drive device according to claim 1, characterized in that: The controller comprises a position sensor, which is used to monitor the position change of the push rod (30) and feed back to the drive assembly (40).

10. A cradle, characterized in that: include: A reciprocating drive device as described in any one of claims 1 to 9 above; A base, the base is supported on the ground, and the fixing bracket (10) is connected to the base; A hanging basket is connected to an end of the first spring (20) away from the fixed bracket (10).

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