Assistive device

Abstract

The application provides a power-assisted device, and relates to the technical field of sports supplies, which optimizes the structure of the power-assisted device and reduces the space occupation of the power-assisted device to a certain extent.The power-assisted device comprises a base, a pedal, a thrust mechanism and a folding mechanism; the thrust mechanism and the folding mechanism are arranged between the pedal and the base, the folding mechanism comprises a first folding assembly and a second folding assembly, and the first folding assembly and the second folding assembly are oppositely arranged on the two sides of the base and the pedal; one end of the thrust mechanism is rotationally connected with the base, and the other end is detachably connected with the pedal.

Description

Technical Field

[0001] This invention relates to the field of sporting goods technology, and in particular to an assistive device. Background Technology

[0002] As pull-ups become more popular in sports and fitness, more people are participating in them. However, due to their own weight and physical condition, most people are unable to successfully perform this exercise and training.

[0003] Currently, assisted pull-up exercises require specialized gravity-assisted training equipment or the assistance of others. However, due to limitations in the usage environment and the size of the assistive equipment, pull-up exercises mostly need to be performed in specific places such as gyms, which cannot meet the exercise and training goals of most people at home or with outdoor fitness equipment.

[0004] Therefore, there is an urgent need to provide an assistive device to address the problems existing in the prior art to some extent. Summary of the Invention

[0005] The purpose of this invention is to provide an assistive device that optimizes the structure of the assistive device to a certain extent and reduces the space occupied by the assistive device.

[0006] The present invention provides an assistive device, including a base, a pedal, a thrust mechanism, and a folding mechanism; the thrust mechanism and the folding mechanism are both disposed between the pedal and the base, and the folding mechanism includes a first folding component and a second folding component, the first folding component and the second folding component being disposed opposite to each other on both sides of the base and the pedal; one end of the thrust mechanism is rotatably connected to the base, and the other end is detachably connected to the pedal.

[0007] The pedal is provided with a mounting mechanism on the side facing the base. The thrust mechanism includes multiple thrust members, which are arranged along a first direction. One end of each thrust member is rotatably connected to the base, and the other end is detachably connected to the mounting mechanism.

[0008] Specifically, it also includes a first positioning block and a second positioning block disposed opposite to each other on the base, and both the first positioning block and the second positioning block extend along the first direction. One end of the thrust member is rotatably connected to the first positioning block. The second positioning block has a plurality of receiving grooves on the side facing the pedal corresponding to the plurality of thrust members. A limiting part is formed on the end of the second positioning block away from the first positioning block corresponding to the plurality of receiving grooves. The telescopic end of the thrust member abuts against the limiting part.

[0009] Specifically, the installation mechanism includes a connecting block and a telescopic component; the connecting block extends along the first direction, and a plurality of connecting grooves are formed on the connecting block corresponding to the thrust member; the telescopic component extends along the first direction, and the fixed end of the telescopic component is connected to the first folding component, and the telescopic end can pass through the connecting block in a direction close to the second folding component to connect the end of the thrust member away from the base.

[0010] Furthermore, the telescopic assembly includes a rotating part, a sleeve, a telescopic rod, and a mating component; the mating component is disposed inside the sleeve, one end of the rotating part passes through the first folding assembly and enters the sleeve, connecting with the sleeve; a mating part is formed on the telescopic rod, the mating part cooperates with the mating component, and the rotating part can control the movement of the mating component so that the telescopic rod can extend or retract relative to the sleeve.

[0011] Specifically, the installation mechanism includes a connecting block and a pushing mechanism, and a baffle is provided between the pedal and the base; the connecting block extends along the first direction, and a plurality of connecting grooves are formed on the connecting block corresponding to the pushing member; the baffle is provided with a connecting portion extending along the first direction and a plurality of adjusting grooves spaced apart along the first direction, one end of which is connected to the connecting portion; the pushing mechanism includes a control rod, a connecting rod and an adjusting rod, the control rod is disposed in the adjusting groove, and one end of the control rod is rotatably connected to one end of the connecting rod, the other end of the connecting rod passes through the baffle and is connected to one end of the adjusting rod, the adjusting rod extends along the first direction, and the end of the adjusting rod away from the connecting rod can move towards or away from the second folding assembly.

[0012] The assist device provided by the present invention further includes a locking mechanism, which includes a positioning hook and a connecting hook. The positioning hook is connected to the base, and the connecting hook is rotatably connected to the pedal on the side facing the base.

[0013] Specifically, the locking mechanism further includes a mounting plate, a return member, a pressing member, a rotating shaft, and a positioning seat; the positioning seat is connected to the side of the pedal facing the base, one end of the rotating shaft is rotatably connected to the positioning seat, and one end of the mounting plate is connected to the rotating shaft; the connecting hook and the return member are respectively disposed at both ends of the mounting plate, one end of the pressing member abuts against the mounting plate near the return member, and the other end protrudes from the pedal, and the pressing member can move vertically relative to the pedal.

[0014] Furthermore, both the first folding assembly and the second folding assembly are hinged scissor-type structures, and the first and third ends of the first folding assembly and the second folding assembly are connected to fixed wheels, the second and fourth ends of the first folding assembly and the second folding assembly are connected to sliding wheels, and the base and the pedal form a slide rail corresponding to the position of the sliding wheels.

[0015] Furthermore, the assistive device provided by the present invention also includes a buffer assembly, which is disposed on the base and / or the pedal and extends in a vertical direction.

[0016] Compared with existing technologies, the assist device provided by this invention has the following advantages:

[0017] The assistive device provided by the present invention includes a base, a pedal, a thrust mechanism, and a folding mechanism; the thrust mechanism and the folding mechanism are both disposed between the pedal and the base, and the folding mechanism includes a first folding component and a second folding component, which are disposed opposite to each other on both sides of the base and the pedal; one end of the thrust mechanism is rotatably connected to the base, and the other end is detachably connected to the pedal.

[0018] This analysis shows that the thrust mechanism installed between the base and the pedal can provide a certain degree of lifting force to the pedal. When a user steps on the pedal to perform pull-ups, the thrust mechanism provides lifting force to the pedal, thus providing a certain lifting force to the user and assisting in the pull-up exercise.

[0019] Because one end of the thrust mechanism in this application is rotatably connected to the base and the other end is detachably connected to the pedal, and a first folding assembly and a second folding assembly are provided oppositely between the base and the pedal, when the assist device provided in this application is not used, separating one end of the thrust mechanism from the pedal causes the pedal to lose its support force. Then, guided by the folding mechanism, the pedal can fall towards the base until it fits against the base, thus achieving the retrieval of the entire device.

[0020] Since the pedal in this application only requires the user to stand with both feet, the overall space occupied by the assistive device in the retracted state is small, so it can be put into a backpack and carried with the user. This allows people who need assistance to perform pull-ups to no longer be restricted by location and environment. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is a first-view structural schematic diagram of the assistive device provided in an embodiment of the present invention;

[0023] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;

[0024] Figure 3 This is a structural schematic diagram of the assist device from a second perspective provided in an embodiment of the present invention;

[0025] Figure 4 for Figure 3 A magnified view of a section at point B in the middle;

[0026] Figure 5 This is a partial enlarged view of the connecting block and the mounting mechanism in the assistive device provided in an embodiment of the present invention;

[0027] Figure 6 This is a schematic diagram of the baffle and the pushing mechanism in the assist device provided in an embodiment of the present invention.

[0028] In the diagram: 1-Base; 2-Pedal; 3-Thrusting component; 4-First folding assembly; 5-Second folding assembly; 6-First positioning block; 7-Second positioning block; 701-Receiving groove; 702-Limiting part; 8-Connecting block; 801-Connecting groove; 9-Telescopic assembly; 901-Rotating part; 902-Sleeve; 10-Positioning hook; 11-Connecting hook; 12-Mounting plate; 13-Pressing component; 14-Rotating shaft; 15-Positioning seat; 16-Fixed wheel; 17-Sliding wheel; 1701-First connecting shaft; 18-Buffer assembly; 19-Baffle; 1901-Adjusting groove; 20-Control lever; 21-Connecting rod; 22-Adjusting rod;

[0029] S1 - First direction. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0031] In the description of the embodiments of this application, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use. They are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0032] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0033] In the description of the embodiments of this application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0034] As used herein, the term “and / or” includes any one of the relevant items listed and any combination of any two or more items.

[0035] For ease of description, spatial relation terms such as “above,” “upper,” “below,” and “lower” may be used herein to describe the relationship between one element and another as shown in the accompanying drawings. Such spatial relation terms are intended to include not only the orientation depicted in the drawings but also the different orientations of the device during use or operation.

[0036] The terminology used herein is for the purpose of describing various examples only and is not intended to limit this disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms “comprising,” “including,” and “having” enumerate the stated features, quantities, operations, components, elements, and / or combinations thereof, but do not exclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof.

[0037] Variations in the shapes shown in the accompanying drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the accompanying drawings, but include changes in shape that may occur during manufacturing.

[0038] The features of the examples described herein can be combined in various ways that will be apparent upon understanding the disclosure of this application. Furthermore, although the examples described herein have various constructions, other constructions are possible, as will be apparent upon understanding the disclosure of this application. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis that they can be implemented by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0039] Example 1

[0040] like Figures 1-5 As shown, the present invention provides an assistive device, including a base 1, a pedal 2, a thrust mechanism and a folding mechanism; the thrust mechanism and the folding mechanism are both disposed between the pedal 2 and the base 1, and the folding mechanism includes a first folding component 4 and a second folding component 5, which are disposed opposite to each other on both sides of the base 1 and the pedal 2; one end of the thrust mechanism is rotatably connected to the base 1, and the other end is detachably connected to the pedal 2.

[0041] Compared with existing technologies, the assist device provided by this invention has the following advantages:

[0042] The assistive device provided by this invention, through a thrust mechanism set between the base 1 and the pedal 2, can provide a certain degree of lifting force to the pedal 2. When a user steps on the pedal 2 to perform pull-ups, the thrust mechanism can provide lifting force to the pedal 2, thereby providing a certain lifting force to the user through the pedal 2, thus achieving the assistive effect for pull-up exercises.

[0043] Because one end of the thrust mechanism in this application is rotatably connected to the base 1 and the other end is detachably connected to the pedal 2, and a first folding assembly 4 and a second folding assembly 5 are provided oppositely between the base 1 and the pedal 2, when the assist device provided in this application is not used, separating one end of the thrust mechanism from the pedal 2 causes the pedal 2 to lose its support force. Then, under the guidance of the folding mechanism, the pedal 2 can fall towards the base 1 until it fits against the base 1, thus achieving the recovery of the entire device.

[0044] Since the pedal 2 in this application only requires the user to stand with both feet, the overall space occupied by the assist device in the retracted state is small, so it can be put into a backpack and carried with the user, thus freeing people who need assistance to perform pull-ups from the limitations of location and environment.

[0045] It should be noted that in this embodiment, the thrust mechanism can be a structure with a connection position and capable of extension and buffering, such as a spring, air bladder, hydraulic cylinder or gas spring. Preferably, the side of the pedal 2 facing the base 1 is provided with a mounting seat corresponding to the installation position of the thrust mechanism.

[0046] When the assist device needs to be retrieved, the telescopic end of the thrust mechanism is separated from the mounting base, leaving the telescopic end in a free state. This allows the thrust mechanism to rotate relative to the base 1 around the fixed end until it is in contact with the base 1. Then, the pedal 2 descends, completing the retrieval of the assist device.

[0047] When the power assist device is needed, the telescopic end of the thrust mechanism is rotated to pedal 2 and connected to the mounting base. The mounting base may have a connection hole. The telescopic end of the thrust mechanism is locked to the mounting base by fasteners such as bolts and nuts, so that the power assist device is in the extended state.

[0048] It should be further noted that, in this embodiment, the first folding assembly 4 and the second folding assembly 5 can adopt a Z-shaped folding structure. When the assist device is in the unfolded support state, the folding mechanism is in the unfolded state. Preferably, a reinforcing beam can be connected between the two folding structures at an appropriate position, thereby improving the stability of the assist device in the unfolded state. The appropriate position of the reinforcing beam is one that does not obstruct the rotation and disassembly of the thrust mechanism.

[0049] Example 2

[0050] like Figures 1-3 As shown, this application provides a second embodiment. Specifically, the pedal 2 is provided with an installation mechanism on the side facing the base 1. The thrust mechanism includes a plurality of thrust members 3, which are arranged along the first direction S1. One end of the thrust member 3 is rotatably connected to the base 1, and the other end is detachably connected to the installation mechanism.

[0051] By using multiple thrust components 3 and the mounting mechanism on the pedal 2, an appropriate number of thrust components 3 can be selected according to requirements.

[0052] Specifically, when the user has a large body weight or weak arm strength, the number of connections between the pusher 3 and the mounting mechanism can be increased, thereby increasing the support force on the pedal 2, which in turn enhances the support force for the user and ensures the smooth progress of pull-up exercises.

[0053] It should be further explained here that, in this embodiment, mounting positions are formed on the mounting mechanism corresponding to the positions of multiple thrust members 3, allowing the thrust members 3 to be inserted into the corresponding mounting positions. To ensure that multiple thrust members 3 can be connected to the mounting mechanism simultaneously, insert rods, long bolts, or threaded rods can be used, with the insert rods, long bolts, or threaded rods passing sequentially through the multiple mounting positions on the mounting mechanism along the first direction S1. When multiple thrust members 3 need to be connected, the telescopic ends of the thrust members 3 are sequentially placed into the mounting positions, and one end of the insert rod, long bolt, or threaded rod passes sequentially through the corresponding thrust member 3 along the first direction S1, thereby connecting the thrust member 3 to the mounting mechanism.

[0054] Preferably, such as Figure 1 Combination Figure 3 As shown, the first folding component 4 and the second folding component 5 in this application are both hinged scissor structures, and the first and third ends of the first folding component 4 and the second folding component 5 are connected to fixed wheels 16, the second and fourth ends of the first folding component 4 and the second folding component 5 are connected to sliding wheels 17, and the base 1 and the pedal 2 form a slide rail corresponding to the position of the sliding wheel 17.

[0055] It is understandable that in this application Figure 1 The formation of the first folding component 4 and the second folding component 5 shown can be superimposed or reduced as needed.

[0056] By making both the first folding component 4 and the second folding component 5 into a hinged scissor structure, the stability of the connection between the pedal 2 and the base 1 can be improved when the assist device is in the open state, thereby avoiding the problem of the assist device shaking when the user steps on the pedal 2 to a certain extent.

[0057] Since a hinged scissor structure is adopted, the first and third ends of the first folding assembly 4 and the second folding assembly 5 in this application are connected to fixed wheels 16, and the fixed wheels 16 are fixedly connected to the corresponding base 1 and pedal 2, respectively. The second and fourth ends are connected to sliding wheels 17. The first folding assembly 4 and the second folding assembly 5 are unfolded and folded by moving the sliding wheels 17 towards or away from the fixed wheels 16.

[0058] like Figure 1 As shown, in this application, a first connecting shaft 1701 is provided between two oppositely arranged sliding wheels 17, and a second connecting shaft is provided between two oppositely arranged fixed wheels 16. The first connecting shaft 1701 and the second connecting shaft can improve the stability between the two oppositely arranged sliding wheels 17 and fixed wheels 16. Since the sliding wheels 17 slide relative to the base 1 and the pedal 2, the second positioning block 7 in this application has a clearance portion corresponding to the position of the first connecting shaft 1701, thereby enabling the first connecting shaft 1701 to move smoothly.

[0059] It should be added here that, such as Figure 1 Combination Figure 3 As shown, in this application, two reinforcing crossbeams are provided between the first folding assembly 4 and the second folding assembly 5, thereby further improving the overall strength of the device. However, when the telescopic end of the thrust member 3 is separated from the mounting mechanism, since the telescopic end of the thrust member 3 is difficult to retract manually, the reinforcing crossbeams will interfere with the telescopic end of the thrust member 3 during the rotation of the thrust member 3, preventing the thrust member 3 from rotating to a state that fits against the base 1.

[0060] Therefore, as Figure 1 Combination Figure 2 As shown, the assist device provided by the present invention further includes a first positioning block 6 and a second positioning block 7 disposed opposite to each other on the base 1, and both the first positioning block 6 and the second positioning block 7 extend along the first direction S1. One end of the thrust member 3 is rotatably connected to the first positioning block 6. The second positioning block 7 has a plurality of receiving grooves 701 formed on the side facing the pedal 2 corresponding to the plurality of thrust members 3. A limiting part 702 is formed on the end of the second positioning block 7 corresponding to the plurality of receiving grooves 701 away from the first positioning block 6. The telescopic end of the thrust member 3 abuts against the limiting part 702.

[0061] The thrust component 3 in this application is a gas spring. However, whether it is a cylinder, a hydraulic cylinder or a gas spring, when there is no obstruction at the telescopic end, the telescopic end will automatically pop out. After popping out, the telescopic end is difficult to retract manually. That is, when the telescopic end of the thrust component 3 is not needed to extend, there must always be a limiting structure that can restrict the telescopic end from popping out.

[0062] Therefore, this application uses a first positioning block 6 and a second positioning block 7 provided on the base 1. The first positioning block 6 enables the fixed ends of multiple gas springs to be rotatably connected to the first positioning block 6, thereby realizing the installation of the thrust member 3. The multiple receiving grooves 701 formed on the second positioning block 7 and the limiting part 702 provided at the port of the receiving groove 701 enable the end of the telescopic end of the thrust member 3 to abut against the limiting part 702 when the thrust member 3 is placed in the receiving groove 701, thereby preventing the telescopic end from popping out when not in use.

[0063] like Figure 5 As shown, the installation mechanism in this application includes a connecting block 8 and a telescopic component 9; the connecting block 8 extends along the first direction S1, and a plurality of connecting grooves 801 are formed on the connecting block 8 corresponding to the thrust member 3; the telescopic component 9 extends along the first direction S1, and the fixed end of the telescopic component 9 is connected to the first folding component 4, and the telescopic end can pass through the connecting block 8 in a direction close to the second folding component 5 to connect the end of the thrust member 3 away from the base 1.

[0064] In this application, the limiting part 702 formed on the second positioning block 7 can be inserted into the connecting groove 801. Since the telescopic end of the thrust member 3 abuts against the limiting part 702, when the limiting part 702 is inserted into the connecting groove 801, the telescopic end of the thrust member 3 is also inserted into the connecting groove 801.

[0065] Therefore, in this case, the connection between the thrust member 3 and the connecting block 8 is completed at the second positioning block 7. That is, when it is necessary to connect the telescopic end of the thrust member 3 to the connecting block 8, the pedal 2 and the base 1 are in a closed state, and in this state, the limiting part 702 is inserted into the connecting groove 801, so that the telescopic end of the thrust member 3 can be located in the connecting groove 801. Then, the corresponding number of thrust members 3 are connected by the extension of the telescopic component 9 along the first direction S1.

[0066] The telescopic assembly 9 of this application includes a rotating part 901, a sleeve 902, a telescopic rod, and a mating part; the mating part is disposed inside the sleeve 902, one end of the rotating part 901 passes through the first folding assembly 4 and enters the sleeve 902, and is connected to the sleeve 902; a mating part is formed on the telescopic rod, and the mating part cooperates with the mating part. The rotating part 901 can control the movement of the mating part so that the telescopic rod can extend or retract relative to the sleeve 902.

[0067] Optionally, based on the above-mentioned telescopic component 9, this application provides three implementations of the telescopic component 9. The first implementation is that the telescopic component 9 includes a rotating part 901, a sleeve 902, and a telescopic rod. One end of the rotating part 901 passes through the first folding component 4 and is connected to the sleeve 902, and the rotating part 901 can drive the sleeve 902 to rotate relative to the first folding component 4. The mating part is a ball bearing, and the ball bearing is embedded in the sleeve 902. One end of the telescopic rod is located in the sleeve 902, and the mating part is a threaded part formed on the outer wall surface of the telescopic rod. By the mating of the ball bearing and the threaded part, the end of the telescopic rod protruding from the sleeve 902 can move towards or away from the end of the second folding component 5.

[0068] During operation, rotating the rotating part 901 can drive the sleeve 902 to rotate. Since the sleeve 902 is embedded with balls, and preferably there are two balls, which are evenly distributed along the circumference of the sleeve 902, and the outer wall surface of the telescopic rod is formed with a threaded part, the balls can move in the threaded part when the sleeve 902 rotates through the cooperation between the balls and the threaded part, thereby realizing the extension and retraction of the telescopic rod relative to the sleeve 902.

[0069] Since the thrust member 3 needs to be connected to the connecting block 8 at the second positioning block 7, the extension distance of the telescopic rod can be controlled by simply turning the rotating part 901 during use, thereby accurately controlling the number of thrust members 3 that need to be connected. After connection, there is no need to operate the telescopic assembly 9 again, reducing the number of work actions.

[0070] The second embodiment of the telescopic component 9 includes a rotating part 901, a sleeve 902, a telescopic rod, and an elastic element, with a pull cable as the mating component. One end of the rotating part 901 passes through the first folding component 4 and connects to one end of the sleeve 902. The elastic element is disposed inside the sleeve 902, with one end abutting against the bottom of the sleeve 902 and the other end abutting against one end of the telescopic rod. The other end of the telescopic rod extends out of the sleeve 902. One end of the pull cable is connected to the rotating part 901, and the other end is connected to the telescopic rod. In this embodiment, the mating part is a mounting groove, and the other end of the pull cable is connected to the telescopic rod through the mounting groove. The rotating part 901 can release or retract the pull cable to control the telescopic rod to move towards or away from the second folding component 5.

[0071] By means of a pull line wound around the rotating part 901, the pull line can be released or retracted when the rotating part 901 rotates. Since the sleeve 902 is provided with an elastic element, preferably a spring, the spring can push the telescopic rod to extend outward. By connecting the end of the pull line away from the rotating part 901 to the telescopic rod, the telescopic rod can be pulled. Thus, during the release of the pull line, the telescopic rod can extend out of the sleeve 902. That is, the extension distance of the telescopic rod can be controlled by the pull line, thereby realizing the connection of different numbers of thrust members 3.

[0072] In the third embodiment of the telescopic component 9, the mating part in the telescopic component 9 is a gear, and the mating part is a tooth formed on the telescopic rod along the first direction. One end of the rotating part 901 that extends into the sleeve 902 is connected to the gear, and the gear meshes with the tooth. When the rotating part 901 drives the gear to rotate, it can drive the telescopic rod to reciprocate along the first direction.

[0073] like Figure 6 As shown, this application also provides another embodiment of the installation mechanism for connecting multiple thrust members 3, wherein the installation mechanism includes a connecting block 8 and a pushing mechanism, and a baffle 19 is provided between the pedal 2 and the base 1; the connecting block 8 extends along the first direction S1, and a plurality of connecting grooves 801 are formed on the connecting block 8 corresponding to the thrust members 3; the baffle 19 is provided with a connecting portion extending along the first direction S1 and a plurality of adjusting grooves 1901 spaced apart along the first direction S1, one end of which is connected to the connecting portion; the pushing mechanism includes a control lever 20, a connecting rod 21 and an adjusting rod 22, the control lever 20 is disposed in the adjusting groove 1901, and one end of the control lever 20 is rotatably connected to one end of the connecting rod 21, the other end of the connecting rod 21 passes through the baffle 19 and is connected to one end of the adjusting rod 22, the adjusting rod 22 extends along the first direction S1, and the end of the adjusting rod 22 away from the connecting rod 21 can move towards or away from the second folding assembly 5.

[0074] In this embodiment, the structure of the connecting block 8 is the same as that in the above-described scheme. When more thrust members 3 need to be connected, the user moves the control lever 20 to disengage it from the adjustment slot 1901. Then, the control lever 20 is moved along the first direction S1 to the next adjustment slot 1901, and then rotated back into the adjustment slot 1901, thereby achieving the positioning of the control lever 20. During this process, the connecting rod 21 can drive the adjustment rod 22 to move closer to the second folding assembly 5, thereby achieving the connection of more thrust members 3.

[0075] like Figure 1 Combination Figure 4 As shown, the assist device provided by the present invention also includes a locking mechanism, which includes a positioning hook 10 and a connecting hook 11. The positioning hook 10 is connected to the base 1, and the connecting hook 11 is rotatably connected to the pedal 2 on the side facing the base 1.

[0076] The connection between the connecting hook 11 and the positioning hook 10 allows the pedal 2 to be stably engaged with the base 1. When the pedal 2 needs to be moved away from the base 1, the connecting hook 11 is rotated to separate the connecting hook 11 from the positioning hook 10, thus unlocking the pedal 2 from the base 1.

[0077] Optionally, such as Figure 4As shown, the locking mechanism in this application also includes a mounting plate 12, a return member, a pressing member 13, a rotating shaft 14, and a positioning seat 15; the positioning seat 15 is connected to the side of the pedal 2 facing the base 1, one end of the rotating shaft 14 is rotatably connected to the positioning seat 15, and one end of the mounting plate 12 is connected to the rotating shaft 14; the connecting hook 11 and the return member are respectively disposed at both ends of the mounting plate 12, one end of the pressing member 13 abuts against the position of the mounting plate 12 near the return member, and the other end protrudes from the pedal 2, and the pressing member 13 can move relative to the pedal 2 in the vertical direction.

[0078] Since the mounting plate 12 is rotatably connected to the positioning seat 15 via the rotating shaft 14, and one end of the mounting plate 12 is connected to a return element (not shown in the figure), preferably, the return element is a tension spring, one end of which is connected to the pedal 2, and the other end is connected to the mounting plate 12. A connecting hook 11 is connected to the end of the mounting plate 12 away from the return element.

[0079] Therefore, when unlocking is required, the user presses the actuating member 13. Since the end of the actuating member 13 that abuts against the mounting plate 12 is close to the return member, and as... Figure 4 As shown, the rotating shaft 14 is located at the end of the mounting plate 12 away from the return member. Therefore, the pressing member 13 can make the mounting plate 12 rotate downward, thereby driving the connecting hook 11 to rotate outward, and thus separating the connecting hook 11 from the positioning hook 10, completing the unlocking between the pedal 2 and the base 1.

[0080] Preferably, the positioning hook 10 in this application includes a vertically extending column and a guide column inclined downwards at an angle to the horizontal direction, forming an approximately inverted L-shaped structure. When the connecting hook 11 moves from top to bottom, it can contact the guide column and rotate outwards under the guidance of the guide column. After the connecting hook 11 continues to move downwards and crosses the guide column, the connecting hook 11 returns to its original position under the action of the return member, thereby hooking the guide column and locking the pedal 2 and the base 1.

[0081] Furthermore, such as Figure 1 Combination Figure 3 As shown, the assist device provided by the present invention further includes a buffer assembly 18, which is disposed on and connected to the base 1 and / or the pedal 2, and the buffer assembly 18 extends in the vertical direction.

[0082] By providing a buffer assembly 18 on the base 1 and / or the pedal 2, the problem of the pedal 2 falling rapidly after being stepped on due to the insufficient number of push-force components 3 installed by the user can be avoided to a certain extent, causing the pedal 2 to collide with the base 1 and be damaged, or even causing injury to the user.

[0083] Therefore, the buffer assembly 18 in this application can also be a fixed spring, air bag, cylinder, gas spring or hydraulic cylinder. When the pedal 2 comes into contact with the buffer assembly 18, it can play a certain degree of buffering role and avoid the problem of device damage and personnel injury.

[0084] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An assisting device, characterized in that The utility model provides a folding device of a folding bicycle, which comprises a base, a pedal, a thrust mechanism and a folding mechanism. The thrust mechanism and the folding mechanism are arranged between the pedal and the base, and the folding mechanism comprises a first folding assembly and a second folding assembly, which are oppositely arranged on both sides of the base and the pedal. One end of the thrust mechanism is rotationally connected to the base, and the other end is detachably connected to the pedal. The thrust mechanism comprises a plurality of thrust pieces, and the pedal is provided with a mounting mechanism on one side facing the base. The mounting mechanism comprises a connecting block and a telescopic assembly. The connecting block extends along the first direction, and a plurality of connecting grooves are formed in the connecting block corresponding to the thrust pieces. The telescopic assembly extends along the first direction, and a fixed end of the telescopic assembly is connected to the first folding assembly, and a telescopic end can pass through the connecting block in a direction approaching the second folding assembly to connect one end of the thrust piece away from the base. The telescopic assembly comprises a rotating part, a sleeve, a telescopic rod and a matching piece. The matching piece is arranged in the sleeve, one end of the rotating part passes through the first folding assembly and enters the sleeve, and the rotating part is connected to the sleeve. A matching part is formed on the telescopic rod, the matching part is matched with the matching piece, and the rotating part can control the matching piece to move so that the telescopic rod can extend or retract relative to the sleeve.

2. The assistive device of claim 1, wherein, A first positioning block and a second positioning block are oppositely arranged on the base, and the first positioning block and the second positioning block extend along the first direction. One end of the thrust piece is rotationally connected to the first positioning block.

3. The assistive device of claim 1, wherein, A plurality of accommodating grooves are formed in one side of the second positioning block facing the pedal corresponding to the plurality of thrust pieces, and a limiting part is formed on one end of the second positioning block away from the first positioning block corresponding to the plurality of accommodating grooves, and the telescopic end of the thrust piece abuts against the limiting part. The mounting mechanism comprises a connecting block and a pushing mechanism, and a baffle is arranged between the pedal and the base. The connecting block extends along the first direction, and a plurality of connecting grooves are formed in the connecting block corresponding to the thrust pieces. A communication part extending along the first direction and a plurality of adjusting grooves spaced along the first direction and connected to the communication part are formed in the baffle.

4. The assistive device of claim 1, wherein, The pushing mechanism comprises a control rod, a connecting rod and an adjusting rod, the control rod is arranged in the adjusting groove, one end of the control rod is rotationally connected to one end of the connecting rod, the other end of the connecting rod passes through the baffle and is connected to one end of the adjusting rod, the adjusting rod extends along the first direction, and one end of the adjusting rod away from the connecting rod can move in a direction approaching or away from the second folding assembly. The locking mechanism comprises a positioning hook and a connecting hook, the positioning hook is connected to the base, and the connecting hook is rotationally connected to one side of the pedal facing the base.

5. A power assist device according to claim 4, wherein The locking mechanism further comprises a mounting plate, a return member, a pressing member, a rotating shaft and a positioning seat; The positioning seat is connected to a side of the pedal facing the base, one end of the rotating shaft is rotationally connected to the positioning seat, and one end of the mounting plate is connected to the rotating shaft; The connecting hook and the return member are respectively arranged at two ends of the mounting plate, one end of the pressing member is abutted to the mounting plate near the return member, the other end of the pressing member protrudes from the pedal, and the pressing member can move along a vertical direction relative to the pedal.

6. The assistive device of claim 1, wherein, The first folding assembly and the second folding assembly are both hinged scissor structures, first ends and third ends of the first folding assembly and the second folding assembly are both connected with fixed wheels, second ends and fourth ends of the first folding assembly and the second folding assembly are both connected with sliding wheels, and the base and the pedal form a sliding way corresponding to positions of the sliding wheels.

7. The assistive device of claim 1, wherein, Further comprising a buffer assembly, the buffer assembly is arranged on the base and / or the pedal, and the buffer assembly extends along a vertical direction.

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