CN215634162U - Quick assembly disassembly structure of accessory - Google Patents

Abstract

The utility model provides a quick assembly and disassembly structure of accessories, relates to the technical field of rehabilitation bicycles, and solves the technical problem that the accessories and a crank cannot be quickly assembled and disassembled in the prior art. The device comprises a dismounting part and a clamping part, wherein the dismounting part is connected with a crank, the clamping part is arranged on an accessory, the free end of the clamping part extends out of the accessory, and the free end of the clamping part can penetrate through the crank to be clamped and connected with the dismounting part; the dismounting part comprises an adjusting clamping plate, a fixed body and a first spring, the fixed body is connected with the crank, one end of the adjusting clamping plate is connected with one side of the fixed body through the first spring, and the other end of the adjusting clamping plate is connected with the other side of the fixed body in a sliding manner; when the adjusting clamping plate is pressed, the free end of the clamping part can penetrate through the adjusting clamping plate and extend into the fixed body; when the adjusting clamping plate is loosened, the adjusting clamping plate can move towards the direction of returning to the original position under the action of the compression elasticity of the first spring and can be connected with the clamping part in a clamping mode.

Description

Quick assembly disassembly structure of accessory

Technical Field

The utility model relates to the technical field of rehabilitation bicycles, in particular to a quick assembly and disassembly structure of accessories.

Background

At present, different accessories are generally required to be fixed at the crank end of the electric rehabilitation bicycle to complete different rehabilitation functions, for example, the foot problems can be rehabilitated by installing a pedal accessory; the handle fittings are arranged, so that rehabilitation exercise massage can be carried out on the upper limbs of the human body. The accessory of the general rehabilitation bicycle is fixed to the crank end through threads, and then a nut is added for fixing, so that the accessory is prevented from slipping out, and particularly, in order to prevent rotation, the accessory rotates out, and the fixing threads on the left side and the right side are also rotated in the left-right direction. And when the accessories for rehabilitation are replaced, the replacement is inconvenient and needs to be completed by means of a special spanner.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a quick assembly and disassembly structure of accessories, which aims to solve the technical problem that the accessories and a crank cannot be quickly assembled and disassembled in the prior art. The technical effects that can be produced by the preferred technical scheme in the technical schemes provided by the utility model are described in detail in the following.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model provides a quick assembly and disassembly structure of an accessory, which comprises an assembly part and a clamping part, wherein the assembly part is connected with a crank, the clamping part is arranged on the accessory, the free end of the clamping part extends out of the accessory, and the free end of the clamping part can penetrate through the crank to be connected with the assembly part in a clamping way;

the dismounting and mounting part comprises an adjusting clamping plate, a fixed body and a first spring, the fixed body is connected with the crank, one end of the adjusting clamping plate is connected with one side of the fixed body through the first spring, and the other end of the adjusting clamping plate is connected with the other side of the fixed body in a sliding manner;

when the adjusting clamping plate is pressed, the free end of the clamping part can penetrate through the adjusting clamping plate and extend into the fixing body; when the adjusting clamping plate is loosened, the adjusting clamping plate can move towards the direction of returning to the original position under the action of the compression elasticity of the first spring and can be connected with the clamping part in a clamping mode.

Optionally, the adjusting clamping plate comprises a pressing plate and a clamping plate, the ends of the pressing plate and the clamping plate are fixedly connected and are vertically arranged, the pressing plate is connected with the first spring, and the clamping plate is slidably connected with the fixing body;

the clamping plate is provided with a clamping hole, the free end of the clamping portion can penetrate through the clamping hole, and the clamping plate can be connected with the clamping portion in a clamping mode.

Optionally, the detachable part further includes a clamping portion and a second spring, a limiting groove is disposed on the clamping plate, one end of the clamping portion is connected to the other side of the fixing body through the second spring, and the other end of the clamping portion is movably connected to the limiting groove.

Optionally, the clamping portion includes a first section, a second section, a third section and a fourth section, the first section, the second section, the third section and the fourth section are sequentially and fixedly connected, the fourth section is connected with the other side of the fixing body through the second spring, the diameter of the second section is smaller than that of the first section, the diameter of the first section is equal to that of the third section, and the diameter of the third section is smaller than that of the fourth section;

the limiting groove comprises a first groove and a second groove, the first groove and the clamping hole are respectively located on two sides of the second groove, the first groove and the clamping hole are communicated with the second groove, the width of the first groove is larger than the diameter of the second section, the width of the first groove is smaller than the diameter of the first section, the width of the second groove is larger than the diameter of the third section, and the width of the second groove is smaller than the diameter of the fourth section.

Optionally, a first hole, a second hole, a third hole and a sliding groove are formed in the fixed body, a fourth hole is formed in the end portion of the clamping portion, two ends of the first spring are connected with the first hole and the pressing plate respectively, two ends of the second spring are connected with the second hole and the fourth hole respectively, the clamping plate is connected with the sliding groove in a sliding mode, and a free end of the clamping portion can penetrate through the clamping plate and extend into the third hole.

Optionally, the free end of joint portion is the notch cuttype structure just be provided with annular groove on the free end of joint portion, it can stretch into to adjust the cardboard annular inslot.

Optionally, the end of the crank is provided with a through hole and a connecting hole, the free end of the clamping portion can penetrate through the through hole, and the dismounting part is connected with the connecting hole through a bolt.

Optionally, the end of the crank is further provided with an open slot.

According to the quick assembly and disassembly structure of the accessory, the disassembly part is connected with the crank bolt, the clamping part is arranged on the accessory, when the accessory is installed, only the adjusting clamping plate needs to be pressed, then the free end of the clamping part sequentially penetrates through the crank and the adjusting clamping plate and extends into the fixing body, until the free end cannot continuously extend, the adjusting clamping plate is loosened, at the moment, the adjusting clamping plate can move towards the direction returning to the original position under the action of the compression elasticity of the first spring, the adjusting clamping plate can further clamp the clamping part, and the quick installation of the accessory and the crank is realized; when dismantling the accessory, only need press the regulation cardboard, to the outside pulling accessory, just can be so that joint portion and dismouting spare phase separation have realized accessory and articulate quick dismantlement to the accessory that exists among the prior art and the unable technical problem who realizes quick assembly disassembly of crank have been solved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of a quick release structure of a fitting according to an embodiment of the present invention;

FIG. 2 is an exploded view of a disassembled part of the quick-disconnect construction of the fitting provided by an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of an adjusting clamp plate of the quick-release structure of the fitting according to the embodiment of the present invention;

FIG. 4 is a schematic structural view of a latching portion of a quick-release structure of an accessory according to an embodiment of the present invention;

FIG. 5 is a schematic structural view of another side of the engaging portion of the quick release structure of the accessory according to the embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a fixing body of a quick-release structure of a fitting according to an embodiment of the present invention;

FIG. 7 is a schematic structural view of another side of the fixing body of the quick release structure of the fitting according to the embodiment of the present invention;

fig. 8 is a schematic structural diagram of a pedal type electric rehabilitation bicycle according to an embodiment of the present invention;

FIG. 9 is a schematic view of the connection structure of the quick release structure of the accessory, the connecting member, the locking member, the crank, and the pedal;

FIG. 10 is a cross-sectional view of the attachment/detachment member, the clip portion, the crank, and the pedal attachment connection of the quick-release structure of the attachment provided in the embodiment of the present invention;

FIG. 11 is a schematic structural view of a foot pedal attachment of the quick release construction of the attachment provided by the embodiments of the present invention;

FIG. 12 is a schematic structural view of a crank of the quick release structure of the fitting according to the embodiment of the present invention;

FIG. 13 is a schematic structural view of an uncompressed state of an adjusting clamp plate of the quick-release structure of the fitting according to the embodiment of the present invention;

FIG. 14 is a schematic structural view of a pressing state of an adjusting plate of the quick-release structure of the accessory according to the embodiment of the present invention;

fig. 15 is a schematic structural view of the handle type electric rehabilitation bicycle provided by the embodiment of the utility model;

FIG. 16 is a schematic view of the connection structure of the quick release structure of the accessory, including the connecting member, the connecting portion, the crank, and the handle;

FIG. 17 is a cross-sectional view of the attachment of the quick release structure of the attachment, the snap-fit portion, the crank, and the handle attachment provided in accordance with an embodiment of the present invention;

FIG. 18 is a schematic view of a handle fitting connection of the quick release construction of the fitting provided by the embodiments of the present invention;

in figure 1, a dismounting part; 11. adjusting the clamping plate; 111. a pressing plate; 112. a clamping and connecting plate; 1121. a clamping hole; 1122. a limiting groove; 11221. a first groove; 11222. a second groove; 12. a fixed body; 121. a first hole; 122. a second hole; 123. a third aperture; 124. a chute; 13. a first spring; 14. a clamping part; 141. a first stage; 142. a second stage; 143. a third stage; 144. a fourth stage; 145. a fourth aperture; 15. a second spring; 2. a clamping part; 21. an annular groove; 3. a crank; 31. a through hole; 32. connecting holes; 33. an open slot; 4. an accessory; 5. an electric rehabilitation bicycle.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the utility model, and not restrictive of the full scope of the utility model. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.

In the description of the present invention, it is to be noted that "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing and simplifying the description, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus are not to be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as appropriate to those of ordinary skill in the art.

Example 1:

the utility model provides a quick assembly and disassembly structure of an accessory, which comprises an assembly part 1 and a clamping part 2, wherein the assembly part 1 is connected with a crank 3, the clamping part 2 is arranged on the accessory 4, the free end of the clamping part 2 extends out of the accessory 4, the accessory 4 can be a handle accessory or a pedal accessory, the clamping part 2 is rotatably connected with the accessory 4 through a bearing, so that the accessory 4 can rotate conveniently, and the free end of the clamping part 2 can penetrate through the crank 3 to be connected with the assembly part 1 in a clamping way;

the assembling and disassembling piece 1 comprises an adjusting clamping plate 11, a fixed body 12 and a first spring 13, wherein the fixed body 12 is connected with a crank 3, the fixed body 12 is connected with the crank 3 through a bolt, one end of the adjusting clamping plate 11 is connected with one side of the fixed body 12 through the first spring 13, and the other end of the adjusting clamping plate 11 is in sliding connection with the other side of the fixed body 12;

when the adjusting clamping plate 11 is pressed, the interiors of the adjusting clamping plate 11, the fixing body 12 and the crank 3 are free from obstruction, the clamping part 2 can smoothly extend into the adjusting clamping plate 11, and the free end of the clamping part 2 can penetrate through the adjusting clamping plate 11 and extend into the fixing body 12; when the adjusting clamping plate 11 is loosened, the adjusting clamping plate 11 can move towards the direction of returning to the original position under the action of the compression elasticity of the first spring 13 and can be connected with the clamping part 2 in a clamping mode. According to the quick assembly and disassembly structure of the accessory, the assembly and disassembly part 1 is in bolted connection with the crank 3, the clamping part 2 is installed on the accessory 4, when the accessory 4 is installed, only the adjusting clamping plate 11 needs to be pressed, then the free end of the clamping part 2 sequentially penetrates through the crank 3 and the adjusting clamping plate 11 and extends into the fixing body 12, until the accessory cannot be continuously extended, the adjusting clamping plate 11 is loosened, at the moment, the adjusting clamping plate 11 can move in the direction of returning to the original position under the action of the compression elasticity of the first spring 13, the adjusting clamping plate 11 can be further clamped on the clamping part 2, and the quick installation of the accessory 4 and the crank 3 is realized; when dismantling accessory 4, only need press the regulation cardboard 11, to outside pulling accessory 4, just can be so that joint portion 2 and the 1 phase separation of dismouting piece, realized accessory 4 and 3 quick dismantlements of crank to the accessory that exists among the prior art and the unable technical problem who realizes quick assembly disassembly of crank have been solved.

Example 2:

as an optional embodiment, the adjusting clamping plate 11 includes a pressing plate 111 and a clamping plate 112, the ends of the pressing plate 111 and the clamping plate 112 are fixedly connected and are vertically arranged, the pressing plate 111 is connected with the first spring 13, the clamping plate 112 is slidably connected with the fixed body 12, the clamping plate 112 is located between the fixed body 12 and the crank 3, and by moving the clamping plate 112, the fixed body 12 and the crank 3 can be conducted, so as to facilitate the insertion or extension of the clamping portion 2;

the clamping plate 112 is provided with a clamping hole 1121, the free end of the clamping portion 2 can penetrate through the clamping hole 1121, and the clamping plate 112 can be connected with the clamping portion 2 in a clamping mode. When the pressing plate 111 is pressed, the clamping hole 1121, the third hole 123 on the fixing body 12 and the through hole 31 on the crank 3 are concentric, and at this time, the free end of the clamping part 2 can extend into or out of the through hole 31, the clamping hole 1121 and the third hole 123; when the pressing plate 111 is not pressed or released, the engaging hole 1121 is not concentric with the third hole 123 and the through hole 31, and thus the free end of the engaging portion 2 cannot pass through the engaging hole 1121, or the free end of the engaging portion 2 cannot be separated from the engaging hole 1121.

Example 3:

as an optional embodiment, the detachable part 1 further includes a position-limiting portion 14 and a second spring 15, the latch plate 112 is provided with a position-limiting groove 1122, one end of the position-limiting portion 14 is connected to the other end of the fixing body 12 through the second spring 15, and the other end of the position-limiting portion 14 is movably connected to the position-limiting groove 1122, so that when the latch plate 112 slides, the position-limiting portion 14 and the position-limiting groove 1122 move relatively, the position-limiting portion 14 can limit the upward sliding distance of the latch plate 112, and the downward sliding distance of the latch plate 112 can be limited due to the positional relationship between the pressing plate 111 and the fixing body 12. When the bottommost part of the limiting groove 1122 is in contact with the positioning part 14, the adjusting clamping plate 11 is not pressed at this time, and the second spring 15 is compressed by the positioning part 14 at this time; when the adjustment card 11 is pressed, the position of the detent portion 14 and the position of the stopper groove 1122 are moved, and the detent portion 14 is also moved in a direction approaching the crank 3 by the compressive elastic force of the second spring 15.

As an optional embodiment, the blocking portion 14 includes a first section 141, a second section 142, a third section 143, and a fourth section 144, the first section 141, the second section 142, the third section 143, and the fourth section 144 are sequentially and fixedly connected, the fourth section 144 is connected to the other side of the fixing body 12 through a second spring 15, the diameter of the second section 142 is smaller than that of the first section 141, the diameter of the first section 141 is equal to that of the third section 143, and the diameter of the third section 143 is smaller than that of the fourth section 144;

the stopper groove 1122 includes a first groove 11221 and a second groove 11222, the first groove 11221 and the retaining hole 1121 are respectively located at both sides of the second groove 11222 and both the first groove 11221 and the retaining hole 1121 are communicated with the second groove 11222, the width of the first groove 11221 is larger than the diameter of the second section 142, the width of the first groove 11221 is smaller than the diameter of the first section 141, so that the second section 142 is located in the first groove 11221 without pressing the adjustment tab 11, the first section 141 and the third section 143 cannot pass through the first groove 11221, the second spring 15 is in a compressed state, the width of the second groove 11222 is larger than the diameter of the third section 143, the width of the second groove 11222 is smaller than the diameter of the fourth section 144, when the adjustment tab 11 is pressed, the second groove 11222 moves downward, the retaining portion 14 enters the second groove 11222, the second section 142 can pass through the second groove 11222 while the second section 143 enters the second groove 11222, the first section 141 will extend into the open slot 33 in the crank 3 and the fourth section 144 cannot pass through the second slot 11222.

Example 4:

in an alternative embodiment, the fixed body 12 is provided with a first hole 121, a second hole 122, a third hole 123 and a sliding slot 124, the end of the positioning portion 14 is provided with a fourth hole 145, two ends of the first spring 13 are respectively connected with the first hole 121 and the pressing plate 111, two ends of the second spring 15 are respectively connected with the second hole 122 and the fourth hole 145, the clamping plate 112 is slidably connected with the sliding slot 124, the number of the sliding slots 124 is two, two ends of the clamping plate 112 are respectively slidably connected with the two sliding slots, and the free end of the clamping portion 2 can penetrate through the clamping plate 112 and extend into the third hole 123.

Example 5:

as an optional implementation manner, the free end of the clamping portion 2 is a stepped structure, and an annular groove 21 is disposed on the free end of the clamping portion 2, the adjusting clamping plate 11 can extend into the annular groove 21, and the inner wall of the clamping hole 1121 on the clamping plate 112 can extend into the annular groove 21, so that the movement of the clamping portion 2 is limited.

As an alternative embodiment, the end of the crank 3 is provided with a through hole 31 and a connecting hole 32, the free end of the clamping part 2 can pass through the through hole 31, and the fixing body 12 is connected with the connecting hole 32 through a bolt. The end of the crank 3 is further provided with an open slot 33, the open slot 33 is communicated with the through hole 31, when the adjusting clamp plate 11 is pressed, a part of the first section 141 on the clamping portion 14 enters the open slot 33, the other part of the first section 141 enters the through hole 31, at this time, when the fitting 4 is installed, the clamping portion 2 extends into the through hole 31, the clamping portion 14 can be pushed to move, until the second section 142 is located behind the second groove 11222, the adjusting clamp plate 11 at this time can move towards the direction of returning to the original position under the action of the compression elasticity of the first spring 13, and a part of the clamping plate 112 extends into the annular groove 21, so that the movement of the clamping portion 2 is limited. The other end of the crank 3 can be mounted on the electric rehabilitation bicycle 5, and can also be mounted on a common bicycle.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims (8)

1. A quick assembly disassembly structure of accessories is characterized by comprising an assembly part (1) and a clamping part (2), wherein,

the detachable part (1) is connected with the crank (3), the clamping part (2) is installed on the accessory (4), the free end of the clamping part (2) extends out of the accessory (4), and the free end of the clamping part (2) can penetrate through the crank (3) to be connected with the detachable part (1) in a clamping mode;

the dismounting part (1) comprises an adjusting clamping plate (11), a fixed body (12) and a first spring (13), the fixed body (12) is connected with the crank (3), one end of the adjusting clamping plate (11) is connected with one side of the fixed body (12) through the first spring (13), and the other end of the adjusting clamping plate (11) is in sliding connection with the other side of the fixed body (12);

when the adjusting clamping plate (11) is pressed, the free end of the clamping part (2) can penetrate through the adjusting clamping plate (11) and extend into the fixed body (12); when the adjusting clamping plate (11) is loosened, the adjusting clamping plate (11) can move towards the direction of returning to the original position under the action of the compression elasticity of the first spring (13) and can enable the adjusting clamping plate (11) to be connected with the clamping part (2) in a clamping mode.

2. The quick-release structure of an accessory according to claim 1, wherein the adjusting catch plate (11) comprises a pressing plate (111) and a catch plate (112), the ends of the pressing plate (111) and the catch plate (112) are fixedly connected and vertically arranged, the pressing plate (111) is connected with the first spring (13), and the catch plate (112) is slidably connected with the fixed body (12);

be provided with joint hole (1121) on joint board (112), the free end of joint portion (2) can pass joint hole (1121), joint board (112) can with joint portion (2) joint is connected.

3. The quick-release structure of an accessory according to claim 2, wherein the detachable member (1) further comprises a retaining portion (14) and a second spring (15), the retaining plate (112) is provided with a retaining groove (1122), one end of the retaining portion (14) is connected to the other side of the fixed body (12) through the second spring (15), and the other end of the retaining portion (14) is movably connected to the retaining groove (1122).

4. The quick-release structure of an accessory according to claim 3, wherein the retainer (14) comprises a first section (141), a second section (142), a third section (143) and a fourth section (144), the first section (141), the second section (142), the third section (143) and the fourth section (144) are sequentially and fixedly connected, the fourth section (144) is connected with the other side of the fixed body (12) through the second spring (15), the diameter of the second section (142) is smaller than that of the first section (141), the diameter of the first section (141) is equal to that of the third section (143), and the diameter of the third section (143) is smaller than that of the fourth section (144);

the limiting groove (1122) comprises a first groove (11221) and a second groove (11222), the first groove (11221) and the clamping hole (1121) are respectively located on two sides of the second groove (11222), the first groove (11221) and the clamping hole (1121) are communicated with the second groove (11222), the width of the first groove (11221) is larger than the diameter of the second section (142), the width of the first groove (11221) is smaller than the diameter of the first section (141), the width of the second groove (11222) is larger than the diameter of the third section (143), and the width of the second groove (11222) is smaller than the diameter of the fourth section (144).

5. The quick-release structure of a fitting according to claim 3, wherein the fixed body (12) is provided with a first hole (121), a second hole (122), a third hole (123) and a sliding groove (124), the end of the latching portion (14) is provided with a fourth hole (145), two ends of the first spring (13) are respectively connected with the first hole (121) and the pressing plate (111), two ends of the second spring (15) are respectively connected with the second hole (122) and the fourth hole (145), the latching plate (112) is slidably connected with the sliding groove (124), and a free end of the latching portion (2) can pass through the latching plate (112) and extend into the third hole (123).

6. The quick-assembly and disassembly structure of accessory according to claim 1, characterized in that the free end of the clip portion (2) is a step structure and an annular groove (21) is provided on the free end of the clip portion (2), the adjusting clip plate (11) can extend into the annular groove (21).

7. The quick-release structure of an accessory according to claim 1, wherein the end of the crank (3) is provided with a through hole (31) and a connecting hole (32), the free end of the clamping part (2) can pass through the through hole (31), and the detachable part (1) is connected with the connecting hole (32) through a bolt.

8. Quick release construction according to claim 1, characterised in that the end of the crank (3) is also provided with an open slot (33).

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