Umbrella rod device and electric umbrella

Abstract

The invention discloses an umbrella rod device and an electric umbrella, and the umbrella rod device comprises an umbrella head; nesting; one end of the middle rod is connected with the umbrella head, the other end of the middle rod is connected with the upper nest, and a fixing piece is further arranged in the middle rod; the lower nest is connected to the periphery of the middle rod in a sleeving manner and slides along the middle rod; the transmission mechanism comprises a fixed pulley, a transmission belt and a transmission wheel, the fixed pulley is arranged on the fixing piece and is far away from the transmission wheel, the transmission wheel is arranged on the umbrella head or the upper nest, and the transmission belt is of an annular structure and is connected with the fixed pulley and the transmission wheel; the transmission belt is further connected with the lower nest, and the transmission wheel rotates to drive the transmission belt to rotate so that the lower nest can slide along the middle rod. According to the technical scheme, the umbrella rod device is simple in structure, easy to assemble and low in assembling cost.

Description

Technical Field

[0001] The present invention relates to the technical field of electric umbrellas, and particularly relates to a pole device and an electric umbrella. Background Art

[0002] Traditional umbrellas usually require users to use both hands to open or close them. If the user is holding something in their hands and it is inconvenient to quickly open or close the umbrella with both hands, in order to facilitate the user to open and close the umbrella with one hand or quickly, an electric umbrella is designed and produced. The umbrella can be opened and closed by pressing a button. In related technologies, the structure of the umbrella pole transmission device in the electric umbrella is complex, not easy to assemble, and has a high cost. Summary of the Invention

[0003] The main object of the present invention is to provide a pole device, aiming to solve the technical problems of the complex structure, difficult assembly, and high cost of the transmission device of current electric umbrellas.

[0004] To achieve the above object, the pole device proposed by the present invention includes:

[0005] An umbrella head;

[0006] An upper nest;

[0007] A middle rod, one end of the middle rod is connected to the umbrella head, the other end of the middle rod is connected to the upper nest, and a fixing member is further provided inside the middle rod;

[0008] A lower nest, the lower nest is sleeved on the outer periphery of the middle rod and slides along the middle rod; and

[0009] A transmission mechanism, the transmission mechanism includes a fixed pulley, a transmission belt, and a transmission wheel. The fixed pulley is provided on the fixing member and away from the transmission wheel. The transmission wheel is provided on the umbrella head or the upper nest. The transmission belt is of an annular structure and is respectively connected to the fixed pulley and the transmission wheel. The transmission belt is also connected to the lower nest. The rotation of the transmission wheel drives the transmission belt to rotate, causing the lower nest to slide along the middle rod.

[0010] Optionally, the pole device further includes an elastic member provided inside the middle rod. One end of the elastic member is provided with a plug, and the plug is fixedly connected to the transmission belt. The rotation of the transmission belt drives the plug to move, compressing and stretching the elastic member.

[0011] Optionally, a cavity is provided inside the middle rod, and the fixing member includes a fixing portion and a transmission portion;

[0012] When the transmission wheel is provided on the upper nest, an extension tube is provided inside the middle rod. One end of the extension tube is sleeved on the transmission portion, and the other end is connected to the upper nest. The elastic member and the plug are provided inside the extension tube;

[0013] When the transmission wheel is arranged on the umbrella head, the end of the elastic member away from the plug is connected to the transmission part, and the fixing part is connected to the upper nest.

[0014] Optionally, an avoidance groove is provided on the outer peripheral surface of the middle rod, and the annular transmission belt forms a first belt body and a second belt body between the fixed pulley and the transmission wheel, the first belt body is provided in the cavity, the second belt body is provided in the avoidance groove, the first belt body is connected to the plug and is connected to the fixed pulley through the elastic member, and the second belt body is connected to the lower nest.

[0015] Optionally, the lower nest is provided with a fixing groove;

[0016] The transmission belt is a pull rope, and both ends of the pull rope are provided with a first stopper, and the first stopper is arranged in the fixing groove, so that the pull rope is fixedly connected to the lower nest and drives the lower nest to move, and the transmission belt forms a ring structure;

[0017] Alternatively, the transmission belt is a synchronous belt, and the synchronous belt is protrudingly provided with a second stopper, and the second stopper is arranged in the fixing groove, so that the synchronous belt is fixedly connected to the lower nest and drives the lower nest to move.

[0018] Optionally, the umbrella pole device also includes a driving mechanism, which includes a motor, a driving wheel and a speed gear set, the driving wheel is arranged on the output shaft of the motor, the driving wheel is meshingly connected with the speed gear set, the speed gear set is drivingly connected to the transmission wheel, a control circuit board is provided in the umbrella head, the control circuit board is electrically connected to the motor, and an umbrella folding button and an umbrella opening button are also provided on the control circuit board.

[0019] Optionally, when the transmission wheel and the driving mechanism are both arranged in the umbrella head, a transmission shaft is provided in the umbrella head, the transmission wheel is provided on the transmission shaft, and the transmission wheel is connected to a first linkage member, the speed change gear set includes an output gear, the output gear is provided on the transmission shaft, and the output gear is also connected to a second linkage member, the first linkage member and the second linkage member are cooperatively connected and transmit torque to drive the transmission wheel to rotate.

[0020] Optionally, when the transmission wheel and the driving mechanism are both arranged in the upper nest, the speed change gear set is connected to a worm, the worm is meshingly connected to a turbine, the turbine is connected to the transmission wheel, the transmission wheel has a receiving groove along its circumferential direction, and the two side walls of the receiving groove are provided with a plurality of protrusions, and the transmission belt is arranged between the protrusions on the two side walls.

[0021] Optionally, when the transmission wheel is arranged inside the umbrella head, the umbrella head includes a first housing and a first connecting seat, and the first connecting seat is connected to one end of the first housing facing the middle rod;

[0022] When the transmission wheel is arranged inside the upper nest, the upper nest includes a second housing and a second connecting seat. The second connecting seat is arranged inside the second housing and is connected to one end of the second housing facing the middle rod. One end of the middle rod is connected to the first connecting seat, and the other end is connected to the second connecting seat.

[0023] The present invention also provides an electric umbrella, including a support skeleton, an umbrella cloth, and the umbrella rod device as described above. Wherein, the support skeleton includes a first umbrella rib and a second umbrella rib. One end of the first umbrella rib is connected to the upper nest of the umbrella rod device, one end of the second umbrella rib is connected to the first umbrella rib, and the other end is connected to the lower nest. The umbrella cloth is arranged on the first umbrella rib.

[0024] In the technical solution of the present invention, by arranging a fixing member on the upper nest and arranging a fixed pulley on the fixing member, the transmission belt adopts an annular structure and is respectively connected to the fixed pulley and the transmission wheel, and the transmission belt is also connected to the lower nest. In this way, the rotation of the transmission belt can drive the lower nest to slide along the middle rod. When the transmission belt drives the lower nest to move upward along the middle rod towards the upper nest, the umbrella can be opened. When the transmission belt drives the lower nest to move towards the umbrella head along the middle rod, the umbrella can be closed. For the umbrella rod device provided by the present invention, the transmission belt is wound around the transmission wheel and the fixed pulley, and the rotation of the transmission belt is driven by the transmission wheel to further drive the lower nest to move, thereby realizing the opening and closing of the umbrella. The transmission mechanism has a simple structure and is easy to assemble, so that the umbrella rod device has the characteristics of simple structure, easy assembly, and low assembly cost. Description of the Drawings

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0026] Figure 1 It is a schematic structural diagram of an embodiment of the umbrella rod device of the present invention;

[0027] Figure 2 It is a schematic cross-sectional structural diagram of an embodiment of the umbrella rod device of the present invention;

[0028] Figure 3 It is an exploded structural diagram of an embodiment of the umbrella rod device of the present invention;

[0029] Figure 4Schematic diagram of partial explosion structure of an embodiment of the umbrella rod device of the present invention;

[0030] Figure 5 Schematic diagram of the transmission mechanism and the driving mechanism of an embodiment of the umbrella rod device of the present invention;

[0031] Figure 6 Schematic diagram of the first connecting seat of an embodiment of the umbrella rod device of the present invention;

[0032] Figure 7 Schematic diagram of the explosion structure of another embodiment of the umbrella rod device of the present invention;

[0033] Figure 8 Schematic diagram of the transmission mechanism and the driving mechanism of another embodiment of the umbrella rod device of the present invention;

[0034] Figure 9 Schematic diagram of another embodiment of the umbrella rod device of the present invention.

[0035] Explanation of the reference numerals in the drawings:

[0036]

[0037]

[0038] The realization, functional features and advantages of the object of the present invention will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0039] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0040] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0041] In the present invention, unless otherwise clearly specified or limited, terms such as "connection" and "fixation" shall be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, such descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" can explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or the solution where A and B are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0043] The present invention provides a umbrella rod device.

[0044] In the prior art, an electric umbrella can be opened and closed by pressing a button. In the umbrella rod device of the electric umbrella, the umbrella rod transmission device has a complex structure, is not easy to assemble, and has a high cost.

[0045] To solve the above technical problems, the technical solution of the present invention is to adopt a fixing member arranged on the upper nest, and a fixed pulley is arranged on the fixing member. The transmission belt adopts an annular structure and is respectively connected to the fixed pulley and the transmission wheel, and the transmission belt is also connected to the lower nest. In this way, the rotation of the transmission belt can drive the lower nest to slide along the middle rod. When the transmission belt drives the lower nest to move upward along the middle rod towards the upper nest, the umbrella can be opened. When the transmission belt drives the lower nest to move towards the umbrella head along the middle rod, the umbrella can be closed. For the umbrella rod device provided by the present invention, the transmission belt is wound around the transmission wheel and the fixed pulley, and the transmission wheel drives the transmission belt to rotate, further driving the lower nest to move, thereby realizing opening and closing of the umbrella. The transmission mechanism has a simple structure and is easy to assemble, so that the umbrella rod device has the characteristics of simple structure, easy assembly, and low assembly cost.

[0046] The above technical solutions will be described in detail below with reference to the accompanying drawings.

[0047] Embodiment 1

[0048] In the embodiment of the present invention, asFigures 1-9 As shown in the figure, the umbrella rod device includes: an umbrella head 100, an upper nest 200, a middle rod 300, and a lower nest 400; among them, the lower nest 400 is sleeved on the outer periphery of the middle rod 300 and slides along the middle rod 300. One end of the middle rod 300 is connected to the umbrella head 100, the other end of the middle rod 300 is connected to the upper nest 200, and a fixing member 600 is further provided inside the middle rod 300. Further, the umbrella rod device 10 further includes a transmission mechanism 500. Specifically, the transmission mechanism 500 includes a fixed pulley 510, a transmission belt 520, and a transmission wheel 530. The fixed pulley 510 is provided on the fixing member 600 and is rotatably connected to the fixing member 600. The fixed pulley 510 is arranged away from the transmission wheel 530. The transmission wheel 530 is provided on the umbrella head 100 or the upper nest 200. The transmission belt 520 is of an annular structure and is respectively connected to the fixed pulley 510 and the transmission wheel 530. The transmission belt 520 is also connected to the lower nest 400. The rotation of the transmission wheel 530 drives the transmission belt 520 to rotate, causing the lower nest 400 to slide along the middle rod 300.

[0049] In the specific implementation process, when opening the umbrella, it is only necessary to drive the lower nest 400 to move towards the upper nest 200 by the transmission belt 520. When closing the umbrella, it is only necessary to drive the lower nest 400 to move towards the umbrella head 100 by the transmission belt 520. It should be noted that in this embodiment, the middle rod 300 adopts a tubular structure, one end is connected to the upper nest 200, the other end is connected to the umbrella head 100, and the lower nest 400 moves on the middle rod 300 between the upper nest 200 and the umbrella head 100. In this embodiment, a fixing member 600 is installed inside the middle rod 300. The fixed pulley 510 is installed on the fixing member 600 and is rotatably connected to the fixing member 600. The transmission belt 520 is arranged in a ring shape and winds around the transmission wheel 530 and the fixed pulley 510. The transmission belt 520 is also connected to the lower nest 400. The fixed pulley 510 plays a supporting role, enabling the transmission wheel 530 to drive the transmission belt 520 to rotate, and further causing the lower nest 400 to move along the middle rod 300. In addition, in the specific implementation process, the transmission belt 520 can be a synchronous belt, a pull rope, a bead chain, etc., which is not limited in this embodiment.

[0050] A cavity is provided inside the middle rod 300. The fixing member 600 includes a fixing part 610 and a transmission part 620. The fixing part 610 is installed on the upper nest 200, and the transmission part 620 extends into the cavity of the middle rod 300 and is connected to the fixed pulley 510. The transmission part 620 is located inside the cavity. Among them, the fixing part 610 is located outside the middle rod 300 to play a limiting role on the fixing member 600, preventing the fixing part 610 from entering the middle rod 300 and facilitating the assembly of the two. In addition, an installation groove is opened on the transmission part 620. The fixed pulley 510 is located in the installation groove and is rotatably connected to the transmission part 620.

[0051] Further, the umbrella rod device 10 further includes an elastic member 700 disposed inside the middle rod 300. One end of the elastic member 700 is provided with a plug 710, and the plug 710 is fixedly connected to the transmission belt 520. The rotation of the transmission belt 520 drives the plug 710 to move, thereby compressing and stretching the elastic member 700. When the transmission wheel 530 is disposed on the umbrella head 100, the end of the elastic member 700 away from the plug 710 is connected to the fixing member 600. When the transmission wheel 530 is disposed on the upper nest 200, the end of the elastic member 700 away from the plug 710 is connected to the upper nest 200. When the transmission wheel 530 is disposed on the umbrella head 100, the fixing member 600 is disposed close to the upper nest 200. When the transmission wheel 530 is disposed on the upper nest 200, the fixing member 600 is disposed close to the umbrella head 100. In this way, the fixed pulley 510 and the transmission wheel 530 can be separated from each other, ensuring the distance for the transmission belt 520 to drive the lower nest 400 to move, so as to smoothly open and close the umbrella. Among them, the fixing member 600 can be fixed inside the middle rod 300. Of course, it can also be connected to the umbrella head 100 or the upper nest 200. In this embodiment, there is no limitation, as long as there is a certain distance between the fixed pulley 510 and the transmission wheel 530 to smoothly open and close the umbrella.

[0052] When opening or closing the umbrella, the motor 810 needs a large torque to drive the transmission wheel 530 to rotate. The motor 810 is prone to overload, which affects the service life of the motor 810. Similarly, the overload of the motor 810 will also cause wear to the transmission wheel 530. In this embodiment, the elastic member 700 is used to assist in opening and closing the umbrella, protecting the motor 810 and prolonging the service life of the motor 810. In the specific implementation process, the elastic member 700 can be a spring or an elastic rubber structure. In this embodiment, the elastic member 700 is a spring. One end of the spring is fixedly connected to the plug 710, and the plug 710 is connected to the transmission belt 520. Specifically, the transmission belt 520 passes through the plug 710 and is connected. The two can be connected by hot melting, bonding or screw fixing, etc., as long as the displacement between the transmission belt 520 and the plug 710 can be ensured.

[0053] When the transmission belt 520 rotates, it can drive the plug 710 to move. Specifically, when the umbrella is opened, the transmission belt 520 drives the lower nest 400 to move towards the upper nest 200. Correspondingly, the plug 710 moves towards the umbrella head 100, and the spring is stretched. Thus, when the umbrella is in the open state, the spring is in a stretched state. When the umbrella needs to be closed, the transmission belt 520 drives the lower nest 400 to move towards the umbrella head 100, and the plug 710 moves towards the upper nest 200. At this time, the stretched spring has a tendency to contract, and then pulls the plug 710 to move towards the upper nest 200, that is, it can play a role in assisting in closing the umbrella. When the umbrella needs to be closed, the transmission belt 520 drives the lower nest 400 to move towards the umbrella head 100. Correspondingly, the plug 710 moves towards the upper nest 200, and the spring is compressed. Thus, when the umbrella is in the closed state, the spring is in a compressed state. When the umbrella needs to be opened, the transmission belt 520 drives the lower nest 400 to move towards the upper nest 200, and the plug 710 moves towards the umbrella head 100. At this time, the compressed spring has a tendency to stretch, driving the plug 710 to move towards the umbrella head 100, that is, it can play a role in assisting in opening the umbrella.

[0054] Further, a relief groove 310 is provided on the outer peripheral surface of the middle rod 300. The annular transmission belt 520 forms a first belt body and a second belt body between the fixed pulley 510 and the transmission wheel 530. The first belt body is arranged in the cavity, the second belt body is arranged in the relief groove 310, the first belt body is connected to the plug 710 and passes through the elastic member 700 to connect to the fixed pulley 510, and the second belt body is connected to the lower nest 400.

[0055] It can be understood that the annular transmission belt 520 is respectively wound and connected to the fixed pulley 510 and the transmission wheel 530. The distance between the fixed pulley 510 and the transmission wheel 530 is fixed. In this way, two parallel belt bodies are formed between the fixed pulley 510 and the transmission wheel 530. The outer peripheral surface of the middle rod 300 is recessed inward to form a relief groove 310. The relief groove 310 extends along its axis. The relief groove 310 plays a role in protecting and limiting the guiding of the first belt body.

[0056] In the specific implementation process, the umbrella rod device 10 further includes a driving mechanism 800. The driving mechanism 800 includes a motor 810, a driving wheel 820, and a speed-changing gear set 830. The driving wheel 820 is arranged on the output shaft of the motor 810. The driving wheel 820 is meshed and connected with the speed-changing gear set 830. The speed-changing gear set 830 is drivingly connected with the driving wheel 530. A control circuit board 110 is arranged inside the umbrella head 100. The control circuit board 110 is electrically connected with the motor 810. A closing umbrella button 112 and an opening umbrella button 111 are further arranged on the control circuit board 110. A storage battery 148 is further arranged inside the umbrella head 100. The control circuit board 110 is electrically connected with the storage battery 148. A charging seat is further arranged on the control circuit board 110. The umbrella head 100 is provided with a charging port, and the storage battery 148 is charged through the charging port and the charging seat. When it is necessary to open the umbrella, the opening umbrella button 111 is pressed, the motor 810 is started and drives the driving wheel 530 to rotate. The driving wheel 530 drives the driving belt 520 to rotate, and further drives the lower nest 400 to move upward along the middle rod 300 towards the upper nest 200, so as to realize opening the umbrella. When it is necessary to close the umbrella, the closing umbrella button 112 is pressed, the motor 810 is started and drives the driving wheel 530 to rotate in the reverse direction. The driving wheel 530 drives the driving belt 520 to rotate in the reverse direction, and further drives the lower nest 400 to move along the middle rod 300 towards the umbrella head 100, so as to realize closing the umbrella. It can be understood that in this embodiment, a current protection circuit is arranged on the control circuit board 110. During the process of opening or closing the umbrella, when reaching the limit position of opening or closing the umbrella, the current increases, and the current protection circuit controls the motor 810 to turn off.

[0057] Embodiment 2

[0058] Based on the above-mentioned Embodiment 1, in this embodiment, as Figures 1-6 shown, the driving wheel 530 is arranged in the umbrella head 100, and the driving mechanism 800 is also arranged in the umbrella head 100. Specifically, in this embodiment, the umbrella head 100 includes a first housing 130 and a first connection seat 140. The first connection seat 140 is connected to one end of the first housing 130 facing the middle rod 300.

[0059] In the specific implementation process, the first connecting seat 140 includes a first seat body 141 and a second seat body 142. The first seat body 141 and the second seat body 142 are arranged oppositely, and the first seat body 141 and the second seat body 142 are respectively provided with a clamping groove 143 and a clamping buckle 144. The clamping groove 143 of the first seat body 141 is clamped with the clamping buckle 144 of the second seat body 142, so that the first seat body 141 and the second seat body 142 are clamped and connected. Further, the first seat body 141 is provided with a first connecting plate 145, the first connecting plate 145 extends towards the second seat body 142, the second seat body 142 is provided with a second connecting plate 146, the second connecting plate 146 extends towards the first seat body 141, and a receiving groove is formed in the second connecting plate 146. The first connecting plate 145 extends into the receiving groove, so that the first connecting plate 145 and the second connecting plate 146 are stacked. Connecting holes are formed in both the first connecting plate 145 and the second connecting plate 146, and screws are connected to the connecting holes. In this way, the first seat body 141 and the second seat body 142 are locked by the screws to ensure the connection strength between the two. At the same time, the screws also pass through the first housing 130, thereby connecting the first housing 130 and the first connecting seat 140.

[0060] A connecting cavity is further formed between the first seat body 141 and the second seat body 142. One end of the middle rod 300 is located in the connecting cavity and is clamped by the first seat body 141 and the second seat body 142. The connecting cavity forms a first inner wall on the first seat body 141 and a second inner wall on the second seat body 142. Limiting protrusions 147 are provided on both the first inner wall and the second inner wall. Connecting grooves 320 are formed on both opposite sides of the middle rod 300. When the middle rod 300 is connected to the first connecting seat 140, the limiting protrusions 147 are clamped in the connecting grooves 320 to prevent the middle rod 300 from falling off the connecting cavity and improve the connection strength of the middle rod 300.

[0061] The umbrella head 100 is provided with a transmission shaft 120, a transmission wheel 530 is provided on the transmission shaft 120, and the transmission wheel 530 is connected with a first linkage 531, and the speed change gear set 830 includes an output gear 831, the output gear 831 is provided on the transmission shaft 120, and the output gear 831 is also connected with a second linkage 832, and the first linkage 531 and the second linkage 832 are connected and matched to transmit torque to drive the transmission wheel 530 to rotate. In the specific implementation process, the driving mechanism 800 also includes a mounting shaft, a bracket is also provided in the first housing 130, the mounting shaft is fixed on the bracket, the transmission wheel 530 is provided on the mounting shaft, the output gear 831 is also provided on the mounting shaft, and the transmission wheel 530 and the output gear 831 are plugged and matched to transmit torque through the first linkage 531 and the second linkage 832, so that the torque output by the motor 810 is transmitted to the transmission wheel 530 through the speed change gear set 830. The mounting shaft includes a first section and a second section connected to each other, and the outer diameter of the second section is larger than that of the first section. The transmission wheel 530 and the first linkage member 531 are arranged on the first section, and the second linkage member 832 and the output gear 831 are also arranged on the first section, and the transmission wheel 530 is close to the second section. In this way, the transmission wheel 530 is sandwiched between the first linkage member 531 and the second section, and the first linkage member 531 cooperates with the second linkage member 832, and the output gear 831 can limit the transmission wheel 530, so as to prevent the transmission wheel 530 from sliding out of the second section, thereby ensuring that the position of the transmission wheel 530 is relatively fixed.

[0062] In this embodiment, the fixing part 610 of the fixing member 600 is located at one end of the upper nest 200, the transmission part 620 is connected to the fixing part 610, and the elastic member 700 is a spring, and one end of the spring away from the plug 710 is connected to the transmission part 620. The transmission belt 520 is a synchronous belt, and the synchronous belt is protruding with a second stopper 522, and the second stopper 522 is arranged in the fixing groove 410 of the lower nest 400, so that the synchronous belt is fixedly connected to the lower nest 400 and drives the lower nest 400 to move. The transmission wheel 530 and the fixed pulley 510 are both synchronous wheels, and are respectively meshed with the synchronous belt, which is convenient for controlling the opening and closing of the umbrella. There will be no slipping between the transmission belt 520 and the transmission wheel 530 and between the transmission belt 520 and the fixed pulley 510.

[0063] Further, in the first belt body and the second belt body formed between the fixed pulley 510 and the transmission wheel 530, the first belt body is located in the middle rod 300, and is connected to the fixed pulley 510 through the spring after the plug 710 is connected. The second belt body is located outside the middle rod 300 and in the avoidance groove 310. The outer wall of the second belt body is protruding to provide a second stopper 522, and the second stopper 522 is fixed in the fixed groove 410, so as to realize the connection between the second belt body and the lower nest 400, so that the transmission belt 520 drives the lower nest 400 to move along the middle rod 300. In the specific implementation process, the second stopper 522 is connected in the fixed groove 410 by clamping or bonding.

[0064] Embodiment III

[0065] Based on the above-mentioned Embodiment I, in this embodiment, as Figures 7-9 shown, the driving wheel 530 is arranged on the upper nest 200. At the same time, the driving mechanism 800 is also arranged on the upper nest 200. Specifically, the upper nest 200 includes a second housing 210 and a second connecting seat 220. The second connecting seat 220 is arranged inside the second housing 210 and is connected to one end of the second housing 210 facing the middle rod 300. One end of the middle rod 300 is connected to the first connecting seat 140, and the other end is connected to the second connecting seat 220.

[0066] In the specific implementation process, the second housing 210 and the second connecting seat 220 are connected by screws or pins, etc. The end of the middle rod 300 is connected with two symmetrically arranged extension plates 340. Clamping holes 341 are respectively opened on the two extension plates 340. The second connecting seat 220 is provided with a clamping member, and the clamping member is clamped in the clamping hole 341 so that the middle rod 300 is connected to the second connecting seat 220.

[0067] In this embodiment, both the driving wheel 530 and the driving mechanism 800 are arranged inside the upper nest 200. The speed-changing gear set 830 is connected with a worm 833, and the worm 833 is meshed and connected with a turbine 834. The turbine 834 is connected with the driving wheel 530. Specifically, the second connecting seat 220 is provided with an avoidance space, and the driving mechanism 800 and the driving wheel 530 are arranged in the avoidance space. The turbine 834 and the driving wheel 530 are coaxially arranged, and the axial direction of the worm 833 is perpendicular to that of the turbine 834. In the specific implementation process, the turbine 834 is sleeved on the rotating shaft of the driving wheel 530, the worm 833 is meshed and connected with the turbine 834, the worm 833 is connected with the speed-changing gear set 830, and the motor 810 is connected with the speed-changing gear set 830. The torque generated by the motor 810 is transmitted to the driving wheel 530 through the speed-changing gear set 830, the turbine 834 and the worm 833, so that the driving wheel 530 rotates, and then the driving belt 520 is driven to rotate.

[0068] In addition, in this embodiment, the storage battery 148 and the control circuit board 110 are arranged inside the umbrella head 100. The control circuit board 110 is connected with the motor 810 through a power connection line. Specifically, the power connection line is located inside the middle rod 300 and outside the extension tube 330. The power connection line passes through the middle rod 300 and extends to the upper nest 200 to be connected with the motor 810 inside the upper nest 200.

[0069] In this embodiment, the transmission belt 520 is a pull rope, and the transmission wheel 530 is provided with a receiving groove along its circumferential direction. The two side walls of the receiving groove are provided with a plurality of protrusions 532. The transmission belt 520 is provided between the protrusions 532 of the two side walls, so as to increase the friction between the transmission belt 520 and the transmission wheel 530 and avoid slipping. The protrusions 532 of the two side walls are arranged crosswise, and when the transmission belt 520 receives a pulling force, the transmission belt 520 will sink between the crosswise protrusions 532 and present a winding snake shape, further preventing slipping, thereby improving the reliability of the umbrella pole device 10 and further ensuring smooth opening and closing of the umbrella.

[0070] It should be noted that both side walls of the receiving groove are inclined, so that the receiving groove is gradually widened from its bottom wall to its opening. Moreover, the extending direction of the protrusion 532 is consistent with the inclination direction of the corresponding groove wall, so that a plurality of protrusions 532 are arranged at intervals in a radial pattern. The end face of each protrusion 532 facing the opening of the receiving groove is arranged as a flat surface. In this way, when one end of the pull rope is stressed and the other end is relaxed, the pull rope will slide out between the cross - arranged protrusions 532 and be on the end - plane of the protrusions 532. Since the friction of the pull rope on the plane is small, the pull rope can be pulled more easily, so that when the transmission wheel 530 does not move, the umbrella can be manually pushed open or retracted, and the operation is simple and labor - saving. It can be understood that when the battery runs out of power and the motor 810 does not rotate, the operation of manually opening and retracting can be realized. It should be noted that the range of the angle between the inclination direction of the groove wall and the horizontal plane is 40° - 85°, preferably 50° - 80°, and more preferably 60° - 70°. In an embodiment of the present invention, the angle between the inclination direction of the groove wall and the horizontal plane can be 40°, 50°, 60°, 70°, 80°, or 85°. In the technical solution of the present invention, setting the range of the angle between the inclination direction of the groove wall and the horizontal plane to 40° - 85° can enable the groove wall to play a better limiting role on the pull rope and prevent the pull rope from slipping during movement. The protrusion 532313 has an opposite flat - end and root - end, and the root - end is connected to the bottom wall of the receiving groove; the distance between the flat - end and the root is in the range of 0.8mm - 1.5mm. That is to say, the height of the protrusion 532 from the bottom wall to the opening of the receiving groove is 0.8mm, 0.9mm, 1.0mm, 1.2mm, or 1.5mm. With such a setting, the protrusion 532 and the groove wall can effectively play a better limiting role on the pull rope to prevent the pull rope from slipping during movement. Further, the distance between the flat - ends of two adjacent cross - arranged protrusions 532 is greater than the diameter of the pull rope, and the distance between the protrusion 532 and the opposite groove wall is greater than the diameter of the pull rope. With such a setting, when both ends of the pull rope are stressed, the pull rope will easily get into the cross - arranged protrusions 532 and present a winding snake - like shape, effectively preventing the occurrence of the pull - rope slipping phenomenon, thus effectively ensuring that the electric opening and retracting multi - fold umbrella has good use reliability. Further, the protrusion 532 is gradually widened from the bottom wall to the opening of the receiving groove. Specifically, the distance between the root - end of the protrusion 532 and the opposite groove wall is less than the distance between the flat - end and the opposite groove wall, or the distance between the root - ends of the protrusion 532 and the adjacent and cross - arranged protrusion 532 is less than the distance between their flat - ends. With such a setting, when both ends of the pull rope are stressed, the pull rope will sink towards the central axis direction of the transmission wheel 530, and thus be tightened more and more, effectively preventing the pull rope from slipping with the transmission wheel 530.

[0071] In this embodiment, an extension tube 330 is provided inside the middle rod 300. One end of the extension tube 330 is sleeved on the transmission part 620, and the other end is connected to the upper nest 200. The elastic member 700 and the plug 710 are arranged inside the extension tube 330. One end of the elastic member 700 facing away from the plug 710 is connected to the upper nest 200. One end of the extension tube 330 is fixedly connected to the upper nest 200 and locked by screws. The other end of the extension tube 330 is sleeved and connected to the transmission part 620, and the transmission belt 520 wound around the transmission wheel 530 passes through the extension tube 330 and reaches the fixing part 610, and further passes through the fixing part 610 and is wound and connected to the transmission wheel 530. Specifically, the elastic member 700 is located inside the extension tube 330. In this embodiment, the elastic member 700 is a spring. One end of the spring is connected to the upper nest 200, and the other end is connected to the plug 710. The first belt body enters the extension tube 330 after passing through the fixed pulley 510 and is fixedly connected to the plug 710, passes through the spring and reaches the second connection seat 220, and passes through the second connection seat 220 and is connected to the transmission wheel 530. The second belt body enters the avoidance groove 310 of the middle rod 300 after passing through the second connection seat 220 from the transmission wheel 530.

[0072] The lower nest 400 is provided with a fixing groove 410. First stoppers 521 are provided at both ends of the pull rope. The first stoppers 521 are arranged in the fixing groove 410, so that the pull rope is fixedly connected to the lower nest 400 and drives the lower nest 400 to move, and the transmission belt 520 forms an annular structure. The transmission belt 520 is a pull rope. First stoppers 521 are fixed at both ends of the pull rope. The first stoppers 521 are used to limit the end of the pull rope from falling off the fixing groove 410, so as to ensure that the pull rope is connected to the lower nest 400 and drives the lower nest 400 to move along the middle rod 300.

[0073] In addition, in this embodiment, one end of the middle rod 300 close to the umbrella head 100 extends into the first housing 130 of the umbrella head 100, and the first housing 130 and the middle rod 300 are locked by screws. The electrical connection line enters the middle rod 300 from the storage battery 148 and the umbrella head 100, and passes through the fixing part 610 and the second connection seat 220 and then is connected to the motor 810, so that the motor 810 is powered on, and then the motor 810 is started.

[0074] Embodiment Four

[0075] The present invention also provides an electric umbrella, which includes a support framework 20, an umbrella cloth, and a pole device 10. The specific structure of the pole device 10 refers to the above-mentioned embodiments. Since this electric umbrella adopts all the technical solutions of the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be elaborated here one by one. Among them, the support framework 20 includes a first umbrella rib 21 and a second umbrella rib 22. One end of the first umbrella rib 21 is connected to the upper socket 200 of the pole device 10. One end of the second umbrella rib 22 is connected to the first umbrella rib 21, and the other end is connected to the lower socket 400. The umbrella cloth is arranged on the first umbrella rib 21.

[0076] In the specific implementation process, it can be understood that the support framework 20 is arranged around the middle rod 300. A plurality of first umbrella ribs 21 are arranged along the circumferential direction of the upper socket 200, and a plurality of second umbrella ribs 22 are arranged along the circumferential direction of the lower socket 400. The first umbrella ribs 21 and the second umbrella ribs 22 are arranged in one-to-one correspondence. The umbrella cloth is bonded or tied to the first umbrella rib 21. The end of the second umbrella rib 22 is connected to a position near the middle of the first umbrella rib 21 to drive the first umbrella rib 21 to rotate. When the driving wheel 530 drives the driving belt 520 to rotate and close the umbrella, the driving belt 520 drives the lower socket 400 to slide along the middle rod 300 towards the umbrella head 100. The lower socket 400 drives one end of the second umbrella rib 22 to move towards the umbrella head 100, and causes the first umbrella rib 21 to rotate towards the middle rod 300, thereby reducing the angle and distance between the first umbrella rib 21 and the middle rod 300, and further achieving the purpose of closing the umbrella.

[0077] The above are only optional embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made by using the content of the specification and drawings of the present invention under the inventive concept of the present invention, or direct / indirect application in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. An umbrella rod device, characterized in that, include: Umbrella head; Go up to the nest; A middle rod, one end of which is connected to the umbrella head, and the other end of which is connected to the upper nest, and a fixing piece is also provided inside the middle rod; A lower nest, which is sleeved on the outer circumference of the middle rod and slides along the middle rod; and A transmission mechanism, the transmission mechanism includes a fixed pulley, a transmission belt and a transmission wheel, the fixed pulley is arranged on the fixed part and away from the transmission wheel, the transmission wheel is arranged on the umbrella head or the upper nest, the transmission belt is an annular structure and connects the fixed pulley and the transmission wheel respectively, the transmission belt is also connected to the lower nest, the rotation of the transmission wheel drives the transmission belt to rotate so that the lower nest slides along the middle rod.

2. The umbrella rod device according to claim 1, characterized in that, The umbrella pole device also includes an elastic member arranged in the middle rod, one end of the elastic member is provided with a plug, the plug is fixedly connected to the transmission belt, and the transmission belt rotates to drive the plug to move and compress and stretch the elastic member.

3. The umbrella rod device according to claim 2, characterized in that, The middle rod is provided with a cavity, and the fixing member includes a fixing part and a transmission part; When the transmission wheel is arranged on the upper nest, an extension tube is arranged in the middle rod, one end of the extension tube is sleeved on the transmission part, and the other end is connected to the upper nest, and the elastic member and the plug are arranged in the extension tube; When the transmission wheel is arranged on the umbrella head, the end of the elastic member away from the plug is connected to the transmission part, and the fixing part is connected to the upper nest.

4. The umbrella rod device according to claim 3, wherein, An avoidance groove is provided on the outer circumferential surface of the middle rod, and the annular transmission belt forms a first belt body and a second belt body between the fixed pulley and the transmission wheel, the first belt body is provided in the cavity, the second belt body is provided in the avoidance groove, the first belt body is connected to the plug, and is connected to the fixed pulley through the elastic member, and the second belt body is connected to the lower nest.

5. The umbrella rod device according to claim 1, characterized in that, The lower nest is provided with a fixing groove; The transmission belt is a pull rope, and both ends of the pull rope are provided with a first stopper, and the first stopper is arranged in the fixing groove, so that the pull rope is fixedly connected to the lower nest and drives the lower nest to move, and the transmission belt forms a ring structure; Alternatively, the transmission belt is a synchronous belt, and the synchronous belt is protrudingly provided with a second stopper, and the second stopper is arranged in the fixing groove, so that the synchronous belt is fixedly connected to the lower nest and drives the lower nest to move.

6. The umbrella rod device according to claim 1, wherein The umbrella rod device also includes a driving mechanism, which includes a motor, a driving wheel and a speed gear set. The driving wheel is arranged on the output shaft of the motor, the driving wheel is meshed and connected with the speed gear set, and the speed gear set is drivingly connected with the transmission wheel. A control circuit board is arranged in the umbrella head, the control circuit board is electrically connected with the motor, and an umbrella folding button and an umbrella opening button are also arranged on the control circuit board.

7. The umbrella rod device according to claim 6, characterized in that, When the transmission wheel and the driving mechanism are both arranged in the umbrella head, a transmission shaft is provided in the umbrella head, the transmission wheel is arranged on the transmission shaft, and the transmission wheel is connected with a first linkage member, the speed change gear set includes an output gear, the output gear is arranged on the transmission shaft, and the output gear is also connected with a second linkage member, the first linkage member is cooperatively connected with the second linkage member and transmits torque to drive the transmission wheel to rotate.

8. The umbrella rod device according to claim 6, characterized in that, When the transmission wheel and the driving mechanism are both arranged in the upper nest, the speed change gear set is connected with a worm, the worm is meshed with a turbine, the turbine is connected with the transmission wheel, a receiving groove is formed in the transmission wheel along its circumferential direction, a plurality of protrusions are arranged on two side walls of the receiving groove, and the transmission belt is arranged between the protrusions on the two side walls.

9. The umbrella rod device according to claim 1, characterized in that When the transmission wheel is arranged in the umbrella head, the umbrella head includes a first housing and a first connecting seat, and the first connecting seat is connected to one end of the first housing facing the middle rod. When the transmission wheel is arranged in the upper nest, the upper nest includes a second housing and a second connecting seat. The second connecting seat is arranged in the second housing and is connected to one end of the second housing facing the middle rod. One end of the middle rod is connected to the first connecting seat, and the other end is connected to the second connecting seat.

10. An electric umbrella, characterized in that, It includes a support skeleton, umbrella cloth and the umbrella rod device according to any one of claims 1-9. Among them, the support skeleton includes a first umbrella rib and a second umbrella rib. One end of the first umbrella rib is connected to the upper nest of the umbrella rod device, one end of the second umbrella rib is connected to the first umbrella rib, and the other end is connected to the lower nest. The umbrella cloth is arranged on the first umbrella rib.

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