Umbrella rod device and electric umbrella

Abstract

The utility model 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 utility model relates to electric umbrella technical field, especially umbrella rod device and electric umbrella. BACKGROUND

[0002] Traditional umbrella usually needs user both hands to open or fold, if user holds articles and is inconvenient to open or fold umbrella quickly with both hands, in order to facilitate user to open and fold umbrella with one hand or quickly, electric umbrella is designed, and the electric umbrella can be opened and folded by pressing button. SUMMARY

[0003] The utility model discloses a kind of umbrella rod devices, to solve the technical problems of current electric umbrella transmission device complex structure, not easy to assemble and high cost.

[0004] To achieve the above-mentioned purpose, the umbrella rod device provided by the utility model comprises:

[0005] Umbrella head;

[0006] Upper nest;

[0007] Middle stick, one end of the middle stick is connected with the umbrella head, the other end of the middle stick is connected with the upper nest, and a fixing member is further arranged in the middle stick;

[0008] Lower nest, the lower nest is sleeved on the outer periphery of the middle stick and slides along the middle stick;And

[0009] Transmission mechanism, the transmission mechanism includes a fixed pulley, a transmission belt and a transmission wheel, the fixed pulley is arranged on the fixing member and away from the transmission wheel, the transmission wheel is arranged on the umbrella head or the upper nest, the transmission belt is annular structure and is connected with the fixed pulley and the transmission wheel respectively, 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 slides along the middle stick.

[0010] Optionally, the umbrella rod device further comprises an elastic member arranged in the middle stick, one end of the elastic member is provided with a plug, the transmission belt rotates to drive the plug to move and compress and stretch the elastic member;The annular transmission belt forms a first belt body and a second belt body between the fixed pulley and the transmission wheel, a cavity is arranged in the middle stick, the first belt body is arranged in the cavity and connected with the plug, the first belt body further passes through the elastic member and is connected with the fixed pulley, and the second belt body is connected with the lower nest.

[0011] Optionally, the fixing member comprises a fixed part and a transmission part;

[0012] The transmission wheel is arranged in the umbrella head, the elastic member is connected with the transmission part at one end away from the plug, and the fixed part is connected with the upper nest.

[0013] The transmission wheel is arranged in the umbrella head, the elastic member is connected with the transmission part at one end away from the plug, and the fixed part is connected with the upper nest.

[0014] Optionally, the outer circumferential surface of the middle rod is provided with a avoiding groove, and the second belt body is arranged in the avoiding groove.

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

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

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

[0018] Optionally, the umbrella rod device further comprises a driving mechanism, the driving mechanism comprises a motor, a driving wheel and a gear shift gear set, the driving wheel is arranged on the output shaft of the motor, the driving wheel is in meshing connection with the gear shift gear set, the gear shift gear set is in driving connection with the transmission wheel, the umbrella head is provided with a control circuit board, the control circuit board is in electrical connection with the motor, and the control circuit board is further provided with a closing umbrella button and an opening umbrella button.

[0019] Optionally, when the transmission wheel and the driving mechanism are both arranged in the umbrella head, the umbrella head is provided with a transmission shaft, the transmission wheel is arranged on the transmission shaft, the transmission wheel is connected with a first linkage member, the gear shift gear set comprises an output gear, the output gear is arranged on the transmission shaft, the output gear is further connected with a second linkage member, the first linkage member and the second linkage member are in matched connection 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 gear shift gear set is connected with a worm, the worm is in meshing connection with a turbine, the turbine is connected with the transmission wheel, the transmission wheel is provided with a containing groove along the circumferential direction, the two side walls of the containing groove are provided with a plurality of protrusions, and the transmission belt is arranged between the protrusions of the two side walls.

[0021] Optionally, when the transmission wheel is arranged in the umbrella head, the umbrella head comprises a first shell and a first connecting seat connected to one end of the first shell towards the middle rod;

[0022] When the transmission wheel is arranged in the upper nest, the upper nest comprises a second shell and a second connecting seat arranged in the second shell and connected to one end of the second shell towards the middle rod, one end of the middle rod being connected to the first connecting seat and the other end being connected to the second connecting seat.

[0023] The utility model discloses still propose a kind of electric umbrella, including support framework, umbrella cloth and umbrella rod device as described above, wherein, the support framework includes first rib and second rib, one end of the first rib is connected with the upper nest of the umbrella rod device, one end of the second rib is connected with the first rib, and the other end is connected with the lower nest, and the umbrella cloth is arranged on the first rib.

[0024] The utility model technical scheme is through using fixed part is arranged in upper nest, and fixed part is arranged on fixed pulley, transmission belt adopts annular structure and is connected with fixed pulley and transmission wheel respectively, and transmission belt is also connected with lower nest, so, transmission belt rotation can drive lower nest to slide along middle rod, when transmission belt drives lower nest to move along middle rod towards upper nest, can realize opening umbrella, when transmission belt drives lower nest to move along middle rod towards umbrella head, can realize folding umbrella. The umbrella rod device provided by the utility model, transmission belt is wound on transmission wheel and fixed pulley, and is driven to rotate by transmission wheel, to further drive lower nest to move, to realize opening umbrella and folding umbrella. Transmission mechanism is simple in structure, easy to assemble, so that the umbrella rod device has the characteristics of simple structure, easy to assemble and low assembly cost. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the following will briefly introduce the drawings needed to be used in embodiment or prior art description, obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained from the structure shown in these drawings without creative labor.

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

[0027] Figure 2 It is a sectional view structural schematic diagram of an embodiment of the umbrella rod device of the utility model;

[0028] Figure 3 It is an explosion structural schematic diagram of an embodiment of the umbrella rod device of the utility model;

[0029] Figure 4 It is a partial explosion structure schematic view of the umbrella rod device one embodiment of the utility model;

[0030] Figure 5 It is a transmission mechanism and drive mechanism structure schematic view of the umbrella rod device one embodiment of the utility model;

[0031] Figure 6 It is a first connecting seat structure schematic view of the umbrella rod device one embodiment of the utility model;

[0032] Figure 7 It is a partial explosion structure schematic view of the umbrella rod device another embodiment of the utility model;

[0033] Figure 8 It is a transmission mechanism and drive mechanism structure schematic view of the umbrella rod device another embodiment of the utility model;

[0034] Figure 9 It is a structure schematic view of the umbrella rod device another embodiment of the utility model.

[0035] Explanation of the attached drawing number:

[0036] 100, umbrella head;110, control circuit board;111, open umbrella button;112, close umbrella button;120, transmission shaft;130, first shell;140, first connecting seat;141, first seat body;142, second seat body;143, clamping groove;144, buckle;145, first connecting plate;146, second connecting plate;147, limiting protrusion;148, storage battery;200, upper nest;210, second shell;220, second connecting seat;300, middle rod;310, avoiding groove;320, connecting groove;330, extension pipe;340, extension plate;341, clamping hole;400, lower nest;410, fixed groove;500, transmission mechanism;510, fixed pulley;520, transmission belt;521, first stop;522, second stop;530, transmission wheel;531, first linkage;532, protrusion;600, fixing piece;610, fixed part;620, transmission part;700, elastic piece;710, plug;800, drive mechanism;810, motor;820, driving wheel;830, speed change gear set;831, output gear;832, second linkage;833, worm;834, turbine;10, umbrella rod device;20, support framework;21, first umbrella rib;22, second umbrella rib.

[0037] The utility model realizes the purpose, functional characteristics and advantages, which will be further explained by combining with the embodiment and referring to the attached drawings. Specific implementation

[0038] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the present utility model.

[0039] It should be noted that all the directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present utility model are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications will also change accordingly.

[0040] In the present utility model, unless otherwise explicitly specified and limited, the terms "connection", "fixation" and the like should be understood in a broad sense, for example, "fixation" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0041] In addition, if the embodiments of the present utility model involve "first", "second" and the like, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features with "first", "second" can explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes. For example, "A and / or B" includes A scheme, or B scheme, or A and B scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of those skilled in the art, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the scope of protection required by the present utility model.

[0042] The present utility model provides a kind of umbrella rod device.

[0043] In the prior art, the electric umbrella can be opened and folded by pressing the button, and the umbrella rod transmission device structure in the electric umbrella umbrella rod device is complex, not easy to assemble, and high in cost.

[0044] To solve the above technical problems, the utility model technical scheme through adopt fixed part is established in the upper nest, and fixed part is established on the fixed part and sets up the fixed pulley, and the transmission belt adopts the ring structure and is connected with the fixed pulley and the transmission wheel respectively, and the transmission belt is connected with the lower nest still, like this, transmission belt rotation can drive the lower nest to slide along the middle stick, when transmission belt drives the lower nest to move along the middle stick to the upper nest, can realize opening umbrella, when transmission belt drives the lower nest to move along the middle stick to the umbrella head, can realize closing umbrella.

[0045] The above technical solutions will be described in detail below with reference to the drawings.

[0046] Embodiment one

[0047] In the utility model embodiment, as shown in Figures 1-9 The umbrella rod device comprises an umbrella head 100, an upper nest 200, a middle stick 300 and a lower nest 400. The lower nest 400 is sleeved on the outer periphery of the middle stick 300 and slides along the middle stick 300. One end of the middle stick 300 is connected with the umbrella head 100, and the other end of the middle stick 300 is connected with the upper nest 200. The middle stick 300 is further provided with a fixed part 600. Further, the umbrella rod device 10 further comprises a transmission mechanism 500. Specifically, the transmission mechanism 500 comprises a fixed pulley 510, a transmission belt 520 and a transmission wheel 530. The fixed pulley 510 is arranged on the fixed part 600 and is rotationally connected with the fixed part 600. The fixed pulley 510 is arranged away from the transmission wheel 530. The transmission wheel 530 is arranged on the umbrella head 100 or the upper nest 200. The transmission belt 520 is in the form of a ring and is connected with the fixed pulley 510 and the transmission wheel 530 respectively. The transmission belt 520 is further connected with the lower nest 400. The transmission wheel 530 is rotationally driven to drive the transmission belt 520 to rotate, so that the lower nest 400 slides along the middle stick 300.

[0048] In the implementation, when the umbrella is opened, the transmission belt 520 drives the lower nest 400 to move towards the upper nest 200, and when the umbrella is closed, the transmission belt 520 drives the lower nest 400 to move towards the umbrella head 100. It should be noted that in the embodiment, the middle rod 300 has a tubular structure, one end of which is connected to the upper nest 200, and the other end is connected to the umbrella head 100. The lower nest 400 moves on the middle rod 300 between the upper nest 200 and the umbrella head 100. In the embodiment, the middle rod 300 is internally provided with a fixing member 600, the fixed pulley 510 is mounted on the fixing member 600 and is rotatably connected to the fixing member 600, the transmission belt 520 is annularly arranged and wound around the transmission pulley 530 and the fixed pulley 510, and the transmission belt 520 is further connected to the lower nest 400. The fixed pulley 510 plays a supporting role, so that the transmission pulley 530 drives the transmission belt 520 to rotate, thereby driving the lower nest 400 to move along the middle rod 300. In addition, in the implementation, the transmission belt 520 can be a synchronous belt, a pull rope or a bead chain, etc., which is not limited in the embodiment.

[0049] The middle rod 300 is provided with a cavity, and the fixing member 600 includes a fixing portion 610 and a transmission portion 620. The fixing portion 610 is mounted on the upper nest 200, and the transmission portion 620 extends into the cavity of the middle rod 300 and is connected to the fixed pulley 510. The transmission portion 620 is located in the cavity, wherein the fixing portion 610 is located outside the middle rod 300 to limit the fixing member 600, so as to avoid the fixing portion 610 from entering the middle rod 300 and facilitate assembly of the fixing portion 610 and the middle rod 300. In addition, the transmission portion 620 is provided with a mounting groove, and the fixed pulley 510 is located in the mounting groove and is rotatably connected to the transmission portion 620.

[0050] Further, the umbrella rod device 10 further includes an elastic member 700 arranged in 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 transmission belt 520 is driven to rotate to drive the plug 710 to move and compress and stretch the elastic member 700. When the transmission pulley 530 is arranged on the umbrella head 100, the other end of the elastic member 700 away from the plug 710 is connected to the fixing member 600. When the transmission pulley 530 is arranged on the upper nest 200, the other end of the elastic member 700 away from the plug 710 is connected to the upper nest 200. When the transmission pulley 530 is arranged on the umbrella head 100, the fixing member 600 is arranged close to the upper nest 200, and when the transmission pulley 530 is arranged on the upper nest 200, the fixing member 600 is arranged close to the umbrella head 100. In this way, the fixed pulley 510 and the transmission pulley 530 can be away from each other, so as to ensure the distance of the transmission belt 520 driving the lower nest 400 to move, so as to smoothly open and close the umbrella. The fixing member 600 can be fixed in the middle rod 300, or can be connected to the umbrella head 100 or the upper nest 200, which is not limited in the embodiment, as long as a certain distance is ensured between the fixed pulley 510 and the transmission pulley 530 to smoothly open and close the umbrella.

[0051] When the umbrella needs to be opened or folded, the motor 810 starts to drive the transmission wheel 530 to rotate, which requires a large torque, and the motor 810 is easy to overload, which affects the service life of the motor 810, and the motor 810 overload also causes wear of the transmission wheel 530. In the embodiment, the elastic member 700 is used to assist the opening and folding of the umbrella, which protects the motor 810 and prolongs 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 the embodiment, the elastic member 700 is a spring, one end of the spring is fixedly connected with the plug 710, and the plug 710 is connected with the transmission belt 520. Specifically, the transmission belt 520 passes through the plug 710 to be connected, and the two can be connected by heat melting, adhesion or screw fixing, etc., which can ensure that the transmission belt 520 and the plug 710 will not displace.

[0052] When the transmission belt 520 rotates, the plug 710 can be driven to move. Specifically, when the umbrella is opened, the transmission belt 520 drives the lower nest 400 to move towards the upper nest 200, and correspondingly, the plug 710 moves towards the umbrella head 100, and the spring is stretched. Thus, when the umbrella is in the opened state, the spring is in the 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 spring in the stretched state has a tendency to contract, and further pulls the plug 710 to move towards the upper nest 200, that is, it can assist the folding of the umbrella. When the umbrella needs to be folded, the transmission belt 520 drives the lower nest 400 to move towards the umbrella head 100, and correspondingly, the plug 710 moves towards the upper nest 200, and the spring is compressed. Thus, when the umbrella is in the folded state, the spring is in the 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 spring in the compressed state has a tendency to stretch, and drives the plug 710 to move towards the umbrella head 100, that is, it can assist the opening of the umbrella.

[0053] Further, the outer circumferential surface of the middle rod 300 is provided with the avoiding groove 310, 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, and the second belt body is arranged in the avoiding groove 310. The first belt body is connected with the plug 710 and passes through the elastic member 700 to be connected with the fixed pulley 510, and the second belt body is connected with the lower nest 400.

[0054] It can be understood that the annular transmission belt 520 is wound around the fixed pulley 510 and the transmission wheel 530 respectively, and the distance between the fixed pulley 510 and the transmission wheel 530 is constant, so that two parallel belt bodies are formed between the fixed pulley 510 and the transmission wheel 530. The outer circumferential surface of the middle rod 300 is recessed inward to form the avoiding groove 310, the avoiding groove 310 extends along the axis direction, and the avoiding groove 310 plays a role of protection and limiting and guiding for the first belt body.

[0055] In specific implementation, the umbrella pole device 10 also includes a drive mechanism 800, which includes a motor 810, a drive wheel 820, and a transmission gear set 830. The drive wheel 820 is mounted on the output shaft of the motor 810 and meshes with the transmission gear set 830. The transmission gear set 830 is driven by the transmission wheel 530. A control circuit board 110 is provided inside the umbrella head 100 and is electrically connected to the motor 810. The control circuit board 110 also has a closing button 112 and an opening button 111. A storage battery 148 is also provided inside the umbrella head 100. The control circuit board 110 is electrically connected to the storage battery 148 and also has a charging base. The umbrella head 100 has a charging port and charges the storage battery 148 through the charging port and the charging base. When the umbrella needs to be opened, press the umbrella opening button 111. The motor 810 starts and drives the transmission wheel 530 to rotate. The transmission wheel 530 drives the transmission belt 520 to rotate, which in turn drives the lower umbrella 400 to move along the central rod 300 towards the upper umbrella 200, thus opening the umbrella. When the umbrella needs to be closed, press the umbrella closing button 112. The motor 810 starts and drives the transmission wheel 530 to rotate in the opposite direction. The transmission wheel 530 drives the transmission belt 520 to rotate in the opposite direction, which in turn drives the lower umbrella 400 to move along the central rod 300 towards the umbrella head 100, thus closing the umbrella. It is understood that in this embodiment, the control circuit board 110 is equipped with a current protection circuit. During the process of opening or closing the umbrella, when the limit position of opening or closing the umbrella is reached, the current increases, and the current protection circuit controls the motor 810 to shut down.

[0056] Example 2

[0057] Based on the above embodiment one, in this embodiment, as... Figures 1-6 As shown, the transmission wheel 530 is located on the umbrella head 100, and the drive mechanism 800 is also located on the umbrella head 100. Specifically, in this embodiment, the umbrella head 100 includes a first housing 130 and a first connecting seat 140, the first connecting seat 140 being connected to the end of the first housing 130 facing the central rod 300.

[0058] In the 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 oppositely arranged, 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, and the clamping groove 143 of the first seat body 141 and the clamping buckle 144 of the second seat body 142 are clamped, 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 is arranged to extend towards the second seat body 142, the second seat body 142 is provided with a second connecting plate 146, the second connecting plate 146 is arranged to extend towards the first seat body 141, and the second connecting plate 146 is formed with an accommodating groove, the first connecting plate 145 extends into the accommodating groove, so that the first connecting plate 145 and the second connecting plate 146 are arranged in layers. The first connecting plate 145 and the second connecting plate 146 are both provided with connecting holes, and screws are connected to the connecting holes, so that the first seat body 141 and the second seat body 142 are locked by the screws to ensure the strength of the connection between the two. At the same time, the screws also pass through the first shell 130, so that the first shell 130 and the first connecting seat 140 are connected.

[0059] 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, and the first inner wall and the second inner wall are both provided with a limiting protrusion 147. The middle rod 300 is provided with a connecting groove 320 on opposite sides, and when the middle rod 300 is connected to the first connecting seat 140, the limiting protrusion 147 is clamped in the connecting groove 320, so that the middle rod 300 is prevented from falling off the connecting cavity and the strength of the connection of the middle rod 300 is improved.

[0060] The umbrella head 100 is provided with a transmission shaft 120, the transmission wheel 530 is arranged on the transmission shaft 120, and the transmission wheel 530 is connected with a first linkage member 531; the transmission gear set 830 comprises an output gear 831, the output gear 831 is arranged on the transmission shaft 120, and the output gear 831 is further connected with a second linkage member 832; the first linkage member 531 and the second linkage member 832 are connected in cooperation and transmit torque to drive the transmission wheel 530 to rotate. In the specific implementation process, the driving mechanism 800 further comprises a mounting shaft, the first shell 130 is further provided with a support, the mounting shaft is fixed on the support, the transmission wheel 530 is arranged on the mounting shaft, the output gear 831 is also arranged on the mounting shaft, and the transmission wheel 530 and the output gear 831 are connected in cooperation through the first linkage member 531 and the second linkage member 832 to transmit torque, so that the torque output by the motor 810 is transmitted to the transmission wheel 530 through the transmission gear set 830. The mounting shaft comprises a first segment and a second segment connected in series, and the outer diameter of the second segment is greater than that of the first segment; the transmission wheel 530 and the first linkage member 531 are arranged on the first segment, the second linkage member 832 and the output gear 831 are also arranged on the first segment, and the transmission wheel 530 is close to the second segment. In this way, the transmission wheel 530 is clamped between the first linkage member 531 and the second segment, the first linkage member 531 cooperates with the second linkage member 832, and the output gear 831 can all limit the transmission wheel 530, so that the transmission wheel 530 can be prevented from sliding out of the second segment, thereby ensuring that the position of the transmission wheel 530 is relatively fixed.

[0061] In the embodiment, the fixed part 610 of the fixing member 600 is located at one end of the upper nest 200, the transmission part 620 is connected with the fixed part 610, the elastic member 700 is a spring, and one end of the spring away from the plug 710 is connected with the transmission part 620. The transmission belt 520 is a synchronous belt, the synchronous belt is provided with a second blocking piece 522, the second blocking piece 522 is arranged in the fixed groove 410 of the lower nest 400, so that the synchronous belt is fixedly connected with 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 connected with the synchronous belt in a meshing manner, so as to facilitate control of opening and closing of the umbrella, and the transmission belt 520 and the transmission wheel 530 and the transmission belt 520 and the fixed pulley 510 will not slip.

[0062] Further, among 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 passes through the spring to connect the plug 710 and connect the fixed pulley 510. The second belt body is located outside the middle rod 300 and is located in the avoiding groove 310, the outer wall of the second belt body is provided with the second blocking piece 522, the second blocking piece 522 is fixed in the fixed groove 410, and the connection between the second belt body and the lower nest 400 is realized, 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 blocking piece 522 is connected in the fixed groove 410 in a clamping or bonding manner.

[0063] Example 3

[0064] Based on the above embodiment one, in this embodiment, as... Figures 7-9 As shown, the transmission wheel 530 is located in the upper nest 200, and the drive mechanism 800 is also located in 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 located inside the second housing 210 and is connected to one end of the second housing 210 facing the central rod 300. One end of the central rod 300 is connected to the first connecting seat 140, and the other end is connected to the second connecting seat 220.

[0065] 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 to two symmetrically arranged extension plates 340. The two extension plates 340 are respectively provided with snap-fit ​​holes 341. The second connecting seat 220 is provided with snap-fit ​​members. The snap-fit ​​members are snapped into the snap-fit ​​holes 341 so that the middle rod 300 and the second connecting seat 220 are connected.

[0066] In this embodiment, both the transmission wheel 530 and the drive mechanism 800 are located within the upper housing 200. The transmission gear set 830 is connected to a worm 833, which meshes with a turbine 834. The turbine 834 is connected to the transmission wheel 530. Specifically, the second connecting seat 220 has a clearance space, within which the drive mechanism 800 and the transmission wheel 530 are located. The turbine 834 is coaxially arranged with the transmission wheel 530, and the worm 833 is perpendicular to the axial direction of the turbine 834. In practical implementation, the turbine 834 is sleeved on the rotating shaft of the transmission wheel 530. The worm 833 meshes with the turbine 834 and is connected to the transmission gear set 830. The motor 810 is connected to the transmission gear set 830, and the torque generated by the motor 810 is transmitted to the transmission wheel 530 through the transmission gear set 830, the turbine 834, and the worm 833, causing the transmission wheel 530 to rotate, thereby driving the transmission belt 520 to rotate.

[0067] In addition, in this embodiment, the battery 148 and the control circuit board 110 are located inside the umbrella head 100. The control circuit board 110 is connected to 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 connect with the motor 810 inside the upper nest 200.

[0068] In the embodiment, the transmission belt 520 is a pull rope, the transmission wheel 530 is provided with a receiving groove along the circumferential direction thereof, the two side walls of the receiving groove are provided with a plurality of protrusions 532, and the transmission belt 520 is arranged between the protrusions 532 of the two side walls, so as to improve the friction between the transmission belt 520 and the transmission wheel 530 and avoid the phenomenon of slipping. The protrusions 532 of the two side walls are arranged in a cross manner, when the transmission belt 520 receives a pulling force, the transmission belt 520 will sink between the protrusions 532 arranged in a cross manner and present a curved and curved snake shape, further preventing slipping, thereby improving the reliability of the umbrella rod device 10 and further ensuring smooth opening and folding of the umbrella.

[0069] It should be noted that the two side walls of the accommodating groove are inclined, so that the accommodating groove is gradually expanded from the bottom wall to the opening. The extending direction of the protrusions 532 is consistent with the inclination direction of the corresponding groove wall, so that the protrusions 532 are arranged in a radial pattern. The end surface of each protrusion 532 facing the opening of the accommodating groove is flat, so that when one end of the pull rope is stressed and the other end is relaxed, the pull rope slides out between the cross-shaped protrusions 532 and is on the end surface of the protrusions 532. Since the friction on the flat surface is small, the pull rope can be pulled more easily, and the transmission wheel 530 can be manually pushed or retracted when it is not moving, which is simple and labor-saving. It can be understood that when the motor 810 does not rotate due to a lack of power, the operation of opening and closing by hand can be realized. It should be noted that the angle between the inclination direction of the groove wall and the horizontal plane is in the range of 40° to 85°, preferably 50° to 80°, and more preferably 60° to 70°. In an embodiment of the present application, 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 scheme of the present application, the angle between the inclination direction of the groove wall and the horizontal plane is set to be in the range of 40° to 85°, so that the groove wall can better limit the pull rope and prevent the pull rope from slipping during movement. The protrusion 532 has opposite flat ends and root ends, and the root ends are connected to the bottom wall of the accommodating groove. The distance between the flat end and the root end is in the range of 0.8mm to 1.5mm. That is, the height of the protrusion 532 from the bottom wall to the opening of the accommodating groove is 0.8mm, 0.9mm, 1.0mm, 1.2mm or 1.5mm. Such a setting can effectively limit the pull rope by the protrusion 532 and the groove wall to prevent the pull rope from slipping during movement. Further, the distance between the flat ends of two adjacent and cross-shaped 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. Such a setting can easily cause the pull rope to sink between the cross-shaped protrusions 532 when the two ends of the pull rope are stressed, and the pull rope is in a curved and curved snake shape, effectively preventing the pull rope from slipping, thereby effectively ensuring that the electrically operated multi-fold umbrella has good use reliability. Further, the protrusion 532 is gradually expanded from the bottom wall to the opening of the accommodating 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 end of the protrusion 532 and the root end of the adjacent and cross-shaped protrusion 532 is less than the distance between the two flat ends. Such a setting can cause the pull rope to sink towards the central axis of the transmission wheel 530 when the two ends of the pull rope are stressed, so that the pull rope is pulled tighter, effectively preventing the pull rope from slipping with the transmission wheel 530.

[0070] In the embodiment, the extension pipe 330 is sleeved with the transmission part 620 at one end and connected with the upper nest 200 at the other end. The elastic member 700 and the plug 710 are arranged in the extension pipe 330, and the end of the elastic member 700 away from the plug 710 is connected with the upper nest 200. The one end of the extension pipe 330 is fastened and connected with the upper nest 200 and locked by a screw, and the other end of the extension pipe 330 is sleeved and connected with the transmission part 620, so that the transmission belt 520 wound on the transmission wheel 530 passes through the extension pipe 330 and reaches the fixed part 610 and is further wound and connected with the transmission wheel 530 through the fixed part 610. Specifically, the elastic member 700 is arranged in the extension pipe 330. In the embodiment, the elastic member 700 is a spring, one end of which is connected with the upper nest 200 and the other end of which is connected with the plug 710. The first belt body enters the extension pipe 330 after passing through the fixed pulley 510 and is fixedly connected with the plug 710, passes through the spring, reaches the second connecting seat 220, and is connected with the transmission wheel 530 through the second connecting seat 220. The second belt body enters the avoiding groove 310 of the middle rod 300 after passing through the second connecting seat 220 from the transmission wheel 530.

[0071] The lower nest 400 is provided with a fixed groove 410, and the two ends of the pull rope are provided with first stop pieces 521 arranged in the fixed groove 410, so that the pull rope is fixedly connected with the lower nest 400 and drives the lower nest 400 to move, and the transmission belt 520 forms a ring structure. The transmission belt 520 is a pull rope, and the two ends of the pull rope are fixedly provided with the first stop pieces 521 for limiting the end of the pull rope from falling off the fixed groove 410, so as to ensure that the pull rope is connected with the lower nest 400 and drives the lower nest 400 to move along the middle rod 300.

[0072] In addition, in the embodiment, the one end of the middle rod 300 close to the umbrella head 100 extends into the first shell 130 of the umbrella head 100 and is locked with the middle rod 300 by a screw. The electric connection wire enters the middle rod 300 from the battery 148 and the umbrella head 100, passes through the fixed part 610 and the second connecting seat 220, and is connected with the motor 810, so that the motor 810 is connected with the power supply and the motor 810 is started.

[0073] Embodiment Four

[0074] The utility model also proposes a kind of electric umbrella, the electric umbrella includes support framework 20, umbrella cloth and umbrella rod device 10, the specific structure of this umbrella rod device 10 refers to above-mentioned embodiment, since the electric umbrella of the application adopts all technical solutions of above-mentioned all embodiments, at least has all beneficial effects brought by the technical scheme of above-mentioned embodiment, here no longer one by one elaboration. Among them, support framework 20 includes first umbrella rib 21 and second umbrella rib 22, one end of first umbrella rib 21 is connected with the upper nest 200 of umbrella rod device 10, one end of second umbrella rib 22 is connected with first umbrella rib 21, and the other end is connected with lower nest 400, and umbrella cloth is arranged on first umbrella rib 21.

[0075] In the specific implementation process, it can be understood that support framework 20 is arranged around middle stick 300, and a plurality of first umbrella ribs 21 are arranged along the circumferential direction of upper nest 200, and a plurality of second umbrella ribs 22 are arranged along the circumferential direction of lower nest 400, the first umbrella rib 21 and the second umbrella rib 22 are arranged one by one, the umbrella cloth is bonded or tied on the first umbrella rib 21, and the end of the second umbrella rib 22 is connected to the first umbrella rib 21 close to the middle position, to drive the first umbrella rib 21 to rotate. When the transmission belt 520 drives the lower nest 400 to slide along the middle stick 300 towards the umbrella head 100 direction, the transmission belt 520 drives the lower nest 400 to slide along the middle stick 300 towards the umbrella head 100 direction, the lower nest 400 drives one end of the second umbrella rib 22 to move towards the umbrella head 100 direction, and makes the first umbrella rib 21 rotate towards the middle stick 300 direction, so as to reduce the included angle and distance between the first umbrella rib 21 and the middle stick 300, and further achieve the purpose of folding the umbrella.

[0076] The above-mentioned is only optional embodiment of the utility model, and not therefore limit the patent range of the utility model, any equivalent structural transformation made by using the utility model specification and drawing contents, or direct / indirect application in other related technical fields under the inventive concept of the utility model are included in the patent protection range of the utility model.

Claims

1. An umbrella pole device, characterized in that, include: Umbrella head; Go to the nest; The central rod has one end connected to the umbrella head and the other end connected to the upper nest. A fixing component is also provided inside the central rod. The lower nest, which is fitted onto the outer periphery of the central rod and slides along the central rod; and The transmission mechanism includes a fixed pulley, a transmission belt, and a transmission wheel. The fixed pulley is located on the fixed member and away from the transmission wheel. The transmission wheel is located on the umbrella head or the upper nest. The transmission belt has a ring 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, causing the lower nest to slide along the middle rod.

2. The umbrella pole device as described in claim 1, characterized in that, The umbrella pole device also includes an elastic element disposed within the central rod. One end of the elastic element is provided with a plug. The rotation of the transmission belt drives the plug to move, thereby compressing and stretching the elastic element. The annularly arranged transmission belt forms a first belt body and a second belt body between the fixed pulley and the transmission wheel. A cavity is provided within the central rod. The first belt body is disposed within the cavity and connected to the plug. The first belt body also passes through the elastic element and is connected to the fixed pulley. The second belt body is connected to the lower nest.

3. The umbrella pole device as described in claim 2, characterized in that, The fastener includes a fixing part and a transmission part; When the transmission wheel is located in the upper nest, the middle rod is provided with an extension tube. One end of the extension tube is sleeved on the transmission part, and the other end is connected to the upper nest. The elastic element and the plug are located inside the extension tube. When the transmission wheel is located at the umbrella head, the end of the elastic element facing away from the plug is connected to the transmission part, and the fixing part is connected to the upper nest.

4. The umbrella pole device as described in claim 3, characterized in that, The outer circumferential surface of the middle rod is provided with a clearance groove, and the second belt is disposed in the clearance groove.

5. The umbrella pole device as described in claim 1, characterized in that, The lower nest is provided with a fixing groove; The transmission belt is a pull rope, and each end of the pull rope is provided with a first stop. The first stop is provided in the fixed groove, so that the pull rope is fixedly connected to the lower nest and drives the lower nest to move, and so that the transmission belt forms a ring structure. Alternatively, the transmission belt is a synchronous belt, and the synchronous belt has a protruding second stop, which is located in the fixed groove, so that the synchronous belt is fixedly connected to the lower nest and drives the lower nest to move.

6. The umbrella pole device as described in claim 1, characterized in that, The umbrella pole device also includes a drive mechanism, which includes a motor, a drive wheel, and a gear set. The drive wheel is mounted on the output shaft of the motor and meshes with the gear set. The gear set is driven by the transmission wheel. A control circuit board is provided inside the umbrella head and is electrically connected to the motor. The control circuit board also has a close button and an open button.

7. The umbrella pole device as described in claim 6, characterized in that, When both the transmission wheel and the driving mechanism are located inside the umbrella head, the umbrella head is provided with a transmission shaft, the transmission wheel is located on the transmission shaft, and the transmission wheel is connected to a first linkage member. The speed-changing gear set includes an output gear, the output gear is located 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 cooperate to connect and transmit torque to drive the transmission wheel to rotate.

8. The umbrella pole device as described in claim 6, characterized in that, When both the transmission wheel and the drive mechanism are located in the upper housing, the speed-changing gear set is connected to a worm gear, the worm gear is meshed with a turbine gear, the turbine gear is connected to the transmission wheel, the transmission wheel has a receiving groove along its circumferential direction, the two side walls of the receiving groove are provided with several protrusions, and the transmission belt is located between the protrusions of the two side walls.

9. The umbrella pole device as claimed in claim 1, characterized in that, When the transmission wheel is located inside the umbrella head, the umbrella head includes a first housing and a first connecting seat, the first connecting seat being connected to the end of the first housing facing the central rod; When the transmission wheel is located inside the upper nest, the upper nest includes a second housing and a second connecting seat. The second connecting seat is located inside the second housing and connected to one end of the second housing facing the central rod. One end of the central 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, The umbrella includes a support frame, an umbrella fabric, and an umbrella pole assembly as described in any one of claims 1-9, wherein the support frame 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 pole assembly, one end of the second umbrella rib is connected to the first umbrella rib, and the other end is connected to the lower nest, and the umbrella fabric is disposed on the first umbrella rib.

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