WHEEL COMPONENT FOR EASY INSTALLATION AND REMOVAL

Abstract

A wheel component (500) for easy assembly and disassembly, comprising a wheel (510) and a rotary shaft (520), wherein a mounting hole (512) is arranged in a center of the wheel (510), characterized by an engagement element (530), wherein an engagement groove (521) is arranged at one end of the rotary shaft (520), the rotary shaft (520) is capable of advancing into or retracting from the mounting hole (512), the engagement element (530) is arranged on one side of the wheel (510) and has an elastic portion (531), and the elastic portion (531) is elastically engaged in the engagement groove (521) and enables connection and locking of the rotary shaft (520) to the wheel (510).

Description

TECHNICAL FIELD

[0001] The present disclosure relates to a stroller, and more particularly to an easy-to-install and easy-to-remove wheel component that has a simple structure and can be installed and removed quickly and conveniently. BACKGROUND

[0002] Today's strollers generally have four sets of wheels, the front two being universal wheels and the rear two being directional wheels. Each set of wheels is rotatably connected to a wheel seat, which is directly connected to a support leg of the vehicle. However, the wheels are made of rubber material. When the wheels wear out after long-term use and need to be replaced, users usually cannot replace the wheels manually because the wheel connection is cumbersome. For example, the hairpin wheel set, which is currently relatively common on the market, requires tools to be used to remove and install the wheel sets. For ordinary users, the installation and removal of the wheel sets is very laborious, difficult to maintain, and inconvenient to use. CN210970541U refers to a stroller wheel with a hub, a rotating shaft, a drive brake part, an elastic part, and a pressure plate.A first brake adjustment structure is arranged on the groove wall of the receiving groove of the hub; the active brake part is provided with a first working position and a second working position. DEMOLITION

[0003] The objective of the present disclosure is to provide a wheel component for easy installation and removal that has a simple structure and can be installed and removed quickly and conveniently. The invention is defined by the claims.

[0004] To achieve the stated object, the present disclosure provides a wheel component for easy installation and removal, comprising a wheel, a rotating shaft, and an engaging member, wherein a mounting hole is disposed at a center of the wheel, a receiving groove is disposed at one end of the rotating shaft, the engaging member is movably engaged in the receiving groove; the engaging member is pivotable between a first position and a second position, the engaging member and the rotating shaft are capable of passing through the mounting hole of the wheel when the engaging member assumes the first position; the rotating shaft is connected to the wheel and locked when the engaging member assumes the second position.

[0005] Compared with the prior art, the present disclosure provides the engagement member movably engaged in a connecting portion of the rotary shaft. When the rotary shaft is connected to the wheel, the engagement member can be pivoted to a first position or a second position. When the engagement member is pivoted to the first position, the engagement member and the rotary shaft can pass through the mounting hole of the wheel, thus achieving the purpose of attaching the wheel; when the engagement member is pivoted to the second position, the engagement member is engaged with the mounting hole, so that the wheel cannot be detached from the rotary shaft, thus achieving the purpose of connecting and locking the wheel. Thus, the wheel can be quickly attached and detached merely by operating the engagement member, resulting in a simple structure and achieving very convenient maintenance and use.

[0006] In one example, the receiving groove penetrates through two lateral surfaces and an end surface of the rotary shaft, and the connecting portion is disposed in the receiving groove and passes through the engaging member.

[0007] In one example, the first position is a position to which the engagement member is pivoted such that a longitudinal direction of the engagement member is the same as a direction in which a center axis of the rotary shaft extends; the second position is a position to which the engagement member is pivoted such that the longitudinal direction of the engagement member intersects the direction in which the center axis of the rotary shaft extends and the engagement member is pressed against an edge of the mounting hole.

[0008] In one example, the engagement element has an elongated annular structure.

[0009] More specifically, an elongated hole is formed in the center of the engaging member, an engaging region is disposed in the center of the elongated hole, and the connecting portion is engaged with the engaging region when the rotating shaft is locked in the wheel.

[0010] In one example, the connecting section is a connecting shaft.

[0011] In one example, the wheel component further includes a wheel cover for covering one side of the wheel to shield the engagement element for easy installation and removal. A positioning rib for positioning the engagement element is arranged on an inner side of the wheel cover.

[0012] A wheel component for easy installation and removal comprises a wheel, a rotary shaft, an engaging member, and an elastic member, wherein a mounting hole is arranged in a center of the wheel, an engaging groove is arranged at one end of the rotary shaft, the rotary shaft is capable of advancing into or retracting from the mounting hole, the engaging member is movably arranged on one side of the wheel, the elastic member provides an elastic force for engaging the engaging member in the engaging groove so that the rotary shaft is connected and locked to the wheel, and the rotary shaft is released and separated from the wheel when the engaging member is disengaged from the engaging groove.

[0013] Compared with the prior art, the present disclosure provides the engagement member movably engaged with the wheel, so that the engagement member can be moved to and engaged with the engagement groove of the rotary shaft when the rotary shaft is connected to the wheel, thus achieving the purpose of locking the rotary shaft and the wheel. When the engagement member is moved to disengage it from the engagement groove, the purpose of releasing or decoupling the rotary shaft and the wheel is achieved. Thus, the wheel can be quickly attached and detached merely by operating the engagement member, resulting in a simple structure and achieving very convenient maintenance and use.

[0014] In one example, an elongated hole through which the rotary shaft passes is arranged on the engagement member, one end of the elongated hole has a first engagement region, the other end of the elongated hole has a second engagement region, and the first engagement region and the second engagement region have different curvatures.

[0015] Specifically, a diameter of a curved edge of the first engagement region is smaller than a diameter of the rotating shaft, and a diameter of a curved edge of the second engagement region is larger than the diameter of the rotating shaft. Thus, when the rotating shaft is in the first engagement region, the rotating shaft abuts or is engaged with an edge of the first engagement region. When the rotating shaft is in the second engagement region, the rotating shaft can directly pass through the second engagement region to disengage from the engagement element, thus achieving the purpose of locking or unlocking.

[0016] In one example, one end of the engagement member is rotatably connected to one side of the wheel, the other end of the engagement member has an engagement region, the engagement member is engaged in the engagement groove after being rotated in one direction, and the engagement member is disengaged from the engagement groove after being rotated in the other direction.

[0017] In one example, a sliding portion extends from one side of the engagement element. The easy-to-install and easy-to-remove wheel component includes a wheel cover slidably disposed in the center of the wheel, and a driving portion is disposed on the wheel cover and is capable of driving the sliding portion by applying pressure to the wheel cover. The wheel cover is configured not only to shield the engagement element to enhance the wheel's appearance and enhance its quality, but also to serve as a handling element for handling the engagement element, thereby improving ease of handling.

[0018] Specifically, the drive portion has an inclined drive surface, the sliding portion has an inclined counter surface, and the inclined drive surface slidably engages the inclined counter surface. The use of the inclined drive surface and the inclined counter surface can cause the wheel cover to smoothly drive the engagement element, further improving ease of use.

[0019] A wheel component for easy installation and removal comprises a wheel, a rotary shaft, and an engagement member, wherein a mounting hole is arranged in a center of the wheel, an engagement groove is arranged at one end of the rotary shaft, the rotary shaft is capable of advancing into or retracting from the mounting hole, the engagement member is arranged on one side of the wheel and has an elastic portion, and the elastic portion is engaged in the engagement groove and enables connection and locking of the rotary shaft to the wheel.

[0020] Compared with the prior art, the present disclosure provides the engagement element, and an elastic portion is disposed at one end of the engagement element and is used to provide a spring-back property. Thus, when the elastic portion is in a natural state, the elastic portion can spring back to engage the engagement groove of the rotary shaft, so that the rotary shaft is connected and locked with the wheel; when the elastic portion is forcibly stretched, the elastic portion can be separated from the engagement groove of the rotary shaft to decouple the rotary shaft from the wheel and further achieve the purpose of decoupling the wheel and the rotary shaft. Thus, the wheel can be quickly attached and detached only by manipulating the elastic portion, which results in a simple structure and can achieve very convenient maintenance and use.

[0021] In one embodiment, the engaging member has a U-shaped structure, and two ends of the U-shaped structure form the elastic portions.

[0022] In one embodiment, for easy installation and removal, the wheel component further comprises a handling element slidably disposed on one side of the wheel to push the elastic portion away from the engagement groove. Thus, ease of handling can be improved.

[0023] Specifically, the tail ends of the elastic sections extend from guide sections. The handling element has inclined holes, and the guide sections are slidably arranged in the inclined holes to drive the elastic sections to open. The arrangement of the guide section allows the handling element to drive the elastic section more easily, making handling more convenient.

[0024] In one embodiment, the wheel component further comprises a wheel cover arranged on one side of the wheel and covering the engagement element for easy installation and removal. The wheel cover is arranged to shield the engagement element to give the wheel a more attractive and high-quality appearance.

[0025] A wheel component for easy assembly and disassembly comprises a wheel, a rotary shaft, an engaging member, and an elastic member, wherein one end of the rotary shaft is fixedly connected to a center of the wheel, the other end of the rotary shaft has an engaging groove and is capable of advancing into or retracting from a support leg of the frame, the engaging member is movably arranged on the support leg, the elastic member provides an elastic force for engaging the engaging member in the engaging groove so that the rotary shaft is connected and locked to the support leg, and the rotary shaft is released and separated from the support leg when the engaging member is disengaged from the engaging groove.

[0026] Compared to the prior art, the present disclosure provides the engagement element for connecting the rotary shaft and the wheel, and the engagement element is movably disposed on the support leg. When the rotary shaft is connected to the support leg, the engagement element can be moved to the engagement groove of the rotary shaft and engaged in the engagement groove to achieve the purpose of locking the wheel; when the engagement element is moved to disengage it from the engagement groove, the purpose of releasing the wheel is achieved. Thus, the wheel can be quickly attached and detached simply by operating the engagement element, resulting in a simple structure and achieving very convenient maintenance and use.

[0027] In one embodiment, an elongated hole through which the rotary shaft passes is arranged on the engagement member, one end of the elongated hole has a first engagement region, the other end of the elongated hole has a second engagement region, and the first engagement region and the second engagement region have different curvatures.

[0028] Specifically, a diameter of a curved edge of the first engagement region is smaller than a diameter of the rotating shaft, and a diameter of a curved edge of the second engagement region is larger than the diameter of the rotating shaft. Thus, when the rotating shaft is in the first engagement region, the rotating shaft is capable of engaging with an edge of the first engagement region. When the rotating shaft is in the second engagement region, the rotating shaft can directly pass through the second engagement region and disengage from the engaging member to achieve the purpose of locking or releasing. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a state diagram of an easy-to-install and easy-to-remove wheel component according to a first example of the present disclosure that has been installed on a frame. Fig. 2 is a structural diagram of the wheel component for easy installation and removal according to the first example of the present disclosure. Fig. 3 is a structural diagram of an engagement member of the wheel component for easy attachment and detachment according to the first example of the present disclosure. Fig. 4 is a state diagram of the engaging element of the easy-to-install and easy-to-detach wheel component according to the first example of the present disclosure in a release position. Fig. 5 is a structural diagram of the engaging member of the wheel component for easy attachment and detachment according to the first example of the present disclosure in a position between the release position and the locking position. Fig. 6 is a structural diagram of the engaging member of the wheel component for easy attachment and detachment according to the first example of the present disclosure in the locking position. Fig. 7 is a cross-sectional view of the engaging member of the easy-to-install and easy-to-remove wheel component according to the first example of the present disclosure in the locking position. Fig. 8 is a state diagram of an easy-to-install and easy-to-detach wheel component according to a second example of the present disclosure that has been installed on the frame. Fig. 9 is a structural diagram of the wheel component for easy installation and removal according to the second example of the present disclosure. Fig. 10 is a structural diagram of an engagement member engaged to a rotary shaft according to the second example of the present disclosure. Fig. 11 is a structural diagram of the engaging member according to the second example of the present disclosure. Fig. 12 is a state diagram of a wheel cover of the easy-to-install and easy-to-remove wheel component according to the second example of the present disclosure after pressure is applied to the wheel cover. Fig. 13 is a state diagram of an easy-to-install and easy-to-detach wheel component according to a third example of the present disclosure that has been installed on the frame. Fig. 14 is a structural diagram of the wheel component for easy installation and removal according to the third example of the present disclosure. Fig. 15 is a structural diagram of an engagement member engaged to a rotary shaft according to the third example of the present disclosure. Fig. 16 is a structural diagram of the engaging member according to the third example of the present disclosure. Fig. 17 is a state diagram of the wheel component for easy installation and removal according to the third example of the present disclosure before pressure is applied to the wheel cover. Fig. 18 is a state diagram of the easy-to-install and easy-to-remove wheel component according to the third example of the present disclosure after pressure is applied to the wheel cover. Fig. 19 is a state diagram of the easy-to-install and easy-to-remove wheel component according to the third example of the present disclosure when released. Fig. 20 is a structural diagram of a wheel component for easy installation and removal according to a fourth example of the present disclosure. Fig. 21 is a structural diagram of an engagement member engaged to a rotary shaft according to the fourth example of the present disclosure. Fig. 22 is a structural diagram of the engaging member according to the fourth example of the present disclosure. Fig. 23 is a state diagram of an easy-to-install and easy-to-detach wheel component according to a first embodiment of the present disclosure that has been installed on the frame. Fig. 24 is a state diagram of a handling member engaged with a wheel according to the first embodiment of the present disclosure. Fig. 25 is a structural diagram of the wheel component for easy installation and removal according to the first embodiment of the present disclosure. Fig. 26 is a structural diagram of an engagement member disposed on the wheel according to the first embodiment of the present disclosure. Fig. 27 is a structural diagram of the engaging member according to the first embodiment of the present disclosure. Fig. 28 is a state diagram of an easy-to-install and easy-to-detach wheel component according to a second embodiment of the present disclosure that has been installed on the frame. Fig. 29 is a structural diagram of the wheel component for easy installation and removal according to the second embodiment of the present disclosure. Fig. 30 is a structural diagram of an engagement member engaged to a rotary shaft according to the second embodiment of the present disclosure. Fig. 31 is a structural diagram of the engaging member according to the second embodiment of the present disclosure. List of reference symbols: 100 wheel components for easy assembly and disassembly 110 wheel 120 rotating shaft 130 engagement element 111 Recording Chamber 112 mounting hole 121 mounting groove 122 connecting section 131 elongated hole 132 Intervention region 133 arched hole region 140 wheel cover 141 Positioning rib 200 wheel components for easy assembly and disassembly 210 wheel 220 rotating shaft 230 engagement element 240 elastic element 250 wheel cover 211 Recording Chamber 212 mounting hole 221 engagement groove 231 elongated hole 232 first intervention region 233 second intervention region 234 sliding section 235 inclined counter surface 251 drive section 252 inclined drive surface 300 wheel for easy assembly and disassembly 310 wheels 320 rotating shaft 330 engagement element 340 elastic element 350 shaft pin 360 wheel cover 311 Recording Chamber 312 mounting hole 321 engagement groove 331 Intervention region 332 sliding section 333 inclined counter surface 361 drive section 362 inclined drive surface 400 wheel components for easy assembly and disassembly 410 wheel 420 rotating shaft 430 engagement element 440 elastic element 411, 412 mounting hole 421 engagement groove 431 elongated hole 432 first intervention region 433 second intervention region 434 sliding section 500 wheel components for easy assembly and disassembly 510 wheel 520 rotating shaft 530 engagement element 540 Handling element 550 wheel cover 511 Recording Chamber 512 mounting hole 521 engagement groove 531 elastic section 532 management section 541 slanted hole 511 Recording Chamber 600 wheel components for easy assembly and disassembly 610 wheels 620 rotating shaft 630 engagement element 640 elastic element 611 mounting hole 621 engagement groove 631 elongated hole 632 first intervention region 633 second intervention region 634 sliding section 1000 support foot 1100 through hole DETAILED DESCRIPTION

[0029] In order to explain in detail the technical content, structural features and achieved effects of the present disclosure, the following detailed description is given in conjunction with the embodiments and accompanying drawings.

[0030] With reference to Fig. 1-7, the structure according to a first example of the present disclosure is shown below.

[0031] As in Fig. 1-3, the wheel component 100 for easy installation and removal according to the example includes a wheel 110, a rotating shaft 120, and an engaging member 130. A receiving chamber 111 is disposed at a center of the wheel 110, a mounting hole 112 is disposed at a center of the receiving chamber 111, one end of the rotating shaft 120 has a receiving groove 121 passing through two lateral surfaces and an end surface thereof, and the other end of the rotating shaft 120 is connected to the frame. A connecting portion 122 is disposed in the receiving groove 121 and passes through the engaging member 130. The connecting portion 122 is a connecting shaft. The engaging member 130 is movably engaged in the receiving groove 121; and the engaging member 130 can pivot between a first position and a second position.When the engagement element 130 assumes the first position, the engagement element 130 and the rotary shaft 120 can pass through a mounting hole 112 of the wheel 110; when the engagement element 130 assumes the second position, the rotary shaft 120 is connected and locked to the wheel 110. The first position is a position to which the engagement element 130 is pivoted so that a longitudinal direction of the engagement element is the same as a direction in which a central axis of the rotary shaft 120 extends; the second position is a position to which the engagement element 130 is pivoted so that the longitudinal direction of the engagement element 130 intersects the direction in which the central axis of the rotary shaft 120 extends, and the engagement element 130 presses against an edge of the mounting hole 112.

[0032] As in Fig. 3, the engagement member 130 further includes an elongated annular structure. An elongated hole 131 is formed in the center of the engagement member 130, an engagement region 132 is located at the center of the elongated hole 131, and arcuate hole regions 133 are formed on two lateral sides thereof. When the rotary shaft 120 is locked into the wheel 110, the connecting portion 122 is engaged with the engagement region 132. Specifically, an edge of the engagement member 130 is a wavy structure to form the engagement region 132 and has a certain elastic force. When the connecting portion 122 reaches the wavy structure, the wavy structure is elastically stretched, allowing the connecting portion 122 to pass through; When the connecting portion 122 has passed over the wavy structure, the wavy structure springs back and the engagement region 132 engages with the connecting portion 122.

[0033] The easy-to-install and easy-to-remove wheel component 100 further includes a wheel cover 140 that covers the receiving chamber 111 of the wheel 110 to shield the engagement element 130. A positioning rib 141 for positioning the engagement element 130 is arranged on the inside of the wheel cover 140.

[0034] As in Fig. 4-7, when the wheel 110 needs to be mounted and locked, it is only necessary to pivot the engagement element 130 to a position such that a longitudinal direction of the engagement element 130 is the same as a direction in which the central axis of the rotary shaft 120 extends, the wheel 110 is pushed onto the rotary shaft 120, and the rotary shaft 120 passes through the mounting hole 112. Thereafter, the engagement element 130 is pivoted to a position such that its longitudinal direction is perpendicular to the direction in which the central axis of the rotary shaft 120 extends. At this time, the engagement element 130 can be displaced until the engagement region 132 is engaged with the connecting portion 122 and the engagement element 130 is engaged on one side of the wheel 110.Then, the rotary shaft 120 cannot come out of the mounting hole 112 due to the complete locking of the engaging member 130, and then the rotary shaft 120 can be connected and locked to the wheel 110.

[0035] When the wheel 110 needs to be released and removed, it is only necessary to force the engagement element 130 to move the engagement region 132 away from the connecting portion 122, and then pivot the engagement element 130 so that the longitudinal direction of the engagement element 130 is the same as the direction in which the central axis of the rotary shaft 120 extends. At this time, the rotary shaft 120 and the engagement element 130 can pass through the mounting hole 112, and the wheel 110 can be detached from the rotary shaft 120.

[0036] Compared with the prior art, the present disclosure provides the engagement member 130 such that the engagement member 130 is movably engaged with the connecting portion 122 of the rotating shaft 120. When the gear 110 is connected to the rotating shaft 120, the engagement member 130 can be pivoted to a position such that its longitudinal direction is the same as the direction in which the central axis of the rotating shaft 120 extends, or it can be pivoted to a position such that its longitudinal direction intersects the direction in which the central axis of the rotating shaft 120 extends.Therefore, when both are in the same direction, the engaging member 130 and the rotating shaft 120 can pass through the mounting hole 112 of the wheel 110 to achieve the purpose of detaching the wheel 110; when both intersect, the engaging member 130 is engaged at the mounting hole 112, so that the wheel 110 cannot be detached from the rotating shaft 120, achieving the purpose of connecting and locking the wheel 110. Thus, the wheel 110 can be quickly attached and detached simply by manipulating the engaging member 130, resulting in a simple structure and very convenient maintenance and use.

[0037] As in Fig. 8-12, the structure according to a second example of the present disclosure is shown below.

[0038] As in Fig. 8-11, the wheel component 200 for easy installation and removal according to the example includes a wheel 210, a rotary shaft 220, an engaging member 230, and an elastic member 240, an accommodating chamber 211 is disposed at a center of the wheel 210, a mounting hole 212 is disposed at the center of the accommodating chamber 211, an annular engaging groove 221 is disposed at one end of the rotary shaft 220 so that the rotary shaft 220 can advance into and retract from the mounting hole 212, and the engaging member 230 can move along a radial direction of the wheel 210 and is disposed on one side of the wheel 210. The elastic member 240 provides an elastic force for engaging the engaging member 230 in the engaging groove 221 to connect and lock the rotary shaft 220 with the wheel 210.The elastic member 240 is a compression spring, one end of which abuts the engagement member 230 and the other end of which abuts the wheel 210. The rotary shaft 220 can be released and separated from the wheel 210 when the engagement member 230 is disengaged from the engagement groove 221.

[0039] As in Fig. More specifically, as shown in Fig. 11, an elongated hole 231 through which the rotary shaft 220 passes is disposed on the engagement member 230. One end of the elongated hole 231 has a first engagement region 232, the other end thereof has a second engagement region 233, and the first engagement region 232 and the second engagement region 233 have different curvatures. More specifically, the edge of the first engagement region 232 has a circular arc shape, and the diameter of the curved edge of the first engagement region 232 is smaller than the diameter of the rotary shaft 220. The edge of the second engagement region 233 has a circular arc shape, and the diameter of the curved edge of the second engagement region 233 is larger than the diameter of the rotary shaft 220. The edge of the elongated hole 231 between the first engagement region 232 and the second engagement region 233 is straight.Thus, when the rotary shaft 220 is located in the first engagement region 232, the rotary shaft 220 is capable of engaging with the edge of the first engagement region 232; and when the rotary shaft 220 is located in the second engagement region 233, the rotary shaft 220 can directly pass through the second engagement region 233 and disengage from the engagement member 230 to achieve the purpose of locking or releasing.

[0040] As in Fig. 11 and Fig. 12, a sliding portion 234 extends from one side of the engaging member 230, and an inclined counter surface 235 is disposed on the sliding portion 234. The easy-to-install and easy-to-remove wheel component 200 further includes a wheel cover 250 disposed at the center of the wheel 210 and slidable along a direction of the center axis of the rotating shaft 220. The wheel cover 250 includes a driving portion 251, the driving portion 251 has an inclined driving surface 252, and the inclined driving surface 252 abuts against and is slidable on the inclined counter surface 235. Pressure on the wheel cover 250 along the axial direction of the rotating shaft 220 enables the driving portion 251 to drive the sliding portion 234 and thereby slidingly drive the engaging member 230.The arrangement of the wheel cover 250 can not only shield the engagement element 230 to make the wheel 210 look more beautiful and high-quality, but can also serve as a handling element for handling the engagement element 230, thereby improving ease of handling. The use of the inclined drive surface 252 and the inclined counter surface 235 can cause the wheel cover 250 to drive the engagement element 230 more smoothly, further improving ease of handling.

[0041] As in Fig. 10 and Fig. As shown in Figure 11, when the wheel 210 needs to be installed and locked, the wheel cover 250 pushes the engagement member 230 to slide it, simply by applying pressure to the wheel cover 250 and rotating it so that the second engagement region 233 directly faces the mounting hole 212. At this time, the rotating shaft 220 passes through the mounting hole 212 and the second engagement region 233, and the wheel 210 is slid onto the rotating shaft 220. Thereafter, the engagement member 230 is released, and the engagement member 230 is returned under the elastic force of the elastic member 240. At this time, the engaging element 230 is displaced, and the first engaging region 232 directly faces the mounting hole 212, and the edge of the first engaging region 232 is engaged in the engaging groove 221.Then, the rotary shaft 220 cannot come out of the mounting hole 212 due to the complete locking of the engaging member 230, and then the rotary shaft 220 can be connected and locked to the wheel 210.

[0042] As in Fig. As shown in Figure 12, when the wheel 210 needs to be released and removed, it is only necessary to apply pressure to the wheel cover 250 so that the wheel cover 250 drives the engagement element 230, and the engagement element 230 can be displaced and compress the elastic element 240. The second engagement region 233 again directly faces the mounting hole 212. At this time, the rotating shaft 220 is disengaged from the second engagement region 233 and the mounting hole 212, and the wheel 210 can be disengaged from the rotating shaft 220.

[0043] Compared with the prior art, the present disclosure provides the engagement member 230 such that the engagement member 230 is movably disposed on the engagement member 210. When the gear 210 is connected to the rotary shaft 220, the engagement member 230 can be moved to the engagement groove 221 of the rotary shaft 220 and engaged with the engagement groove 221 to achieve the purpose of locking the gear 210 and the rotary shaft 220; when the engagement member 230 is moved to release it from the engagement groove 221, the purpose of decoupling the gear 210 and the rotary shaft 220 is achieved. Thus, the gear 210 can be quickly attached and detached simply by manipulating the engagement member 230, which results in a simple structure and can achieve very convenient maintenance and use.

[0044] As in Fig. 13-19, the structure according to a third example of the present disclosure is shown below.

[0045] As in Fig. 13-16, the easy-to-install and easy-to-remove wheel component 300 according to the example further includes a wheel 310, a rotating shaft 320, an engaging member 330, and an elastic member 340. A receiving chamber 311 is disposed at the center of the wheel 310. A mounting hole 312 is disposed at a center of the receiving chamber 311. An annular engaging groove 321 is disposed at one end of the rotating shaft 320, and the rotating shaft 320 is capable of advancing into or retracting from the mounting hole 312. The engaging member 330 is disposed on one side of the wheel 310. One end of the engaging member 330 is pivotally connected to one side of the wheel 310 via a shaft pin 350, and the other end of the engaging member 330 has an engaging region 331. The intervention region 331 is reset.The engagement element 330 can be engaged in or disengaged from the engagement groove 321 after the engagement element 330 rotates along the shaft pin 350. The elastic element 340 provides an elastic force to engage the engagement element 330 in the engagement groove 321, so that the rotary shaft 320 is connected and locked to the wheel 310. The elastic element 340 is a compression spring and has one end pressing on the engagement element 330 and the other end pressing on the wheel 310. When the engagement element 330 is disengaged from the engagement groove 321, the rotary shaft 320 can be released and separated from the wheel 310.

[0046] As in Fig. 16, a sliding portion 332 further extends from one side of the engagement member 330. The sliding portion 332 has a counter sloped surface 333. The easy-to-install and easy-to-remove wheel component 300 includes a wheel cover 360. The wheel cover 360 is disposed at the center of the wheel 310 and can be slid along the direction of the central axis of the rotary shaft 320. The wheel cover 360 includes a drive portion 361, the drive portion 361 has a drive sloped surface 362, and the drive sloped surface 362 slidably engages the counter sloped surface 333. Pressure on the wheel cover 360 along the axial direction of the rotary shaft 320 can cause the driving portion 361 to drive the sliding portion 332 and thereby drive the engaging member 330 to swing around the shaft pin 350.The arrangement of the wheel cover 360 can not only shield the engagement element 330 to make the wheel 310 look more beautiful and high-quality, but can also serve as a handling element for handling the engagement element 330, thereby improving ease of handling. The use of the inclined drive surface 362 and the inclined counter surface 333 can cause the wheel cover 360 to drive the engagement element 330 smoothly, further improving ease of handling.

[0047] As in Fig. As shown in Figure 17, when the wheel 310 needs to be installed and locked, it is only necessary to apply pressure to the wheel cover 360 and rotate it, and then the wheel cover 360 pushes the engagement member 330 to pivot it, so that the engagement region 331 is separated from the mounting hole 312. At this time, the rotary shaft 320 can pass through the mounting hole 312, and the wheel 310 is slid onto the rotary shaft 320. After that, the engagement member 330 is released, and the engagement member 330 is rotated and returned under the elastic force of the elastic member 340. At this time, the engagement region 331 directly faces the mounting hole 312, and the edge of the engagement region 331 is engaged in the engagement region 321. Then, the rotary shaft 320 cannot come out of the mounting hole 312 due to the complete locking of the engaging member 330, and then the rotary shaft 320 can be connected and locked to the wheel 310.

[0048] As in Fig. As shown in Figures 18-19, when the wheel 310 needs to be released and removed, it is only necessary to apply pressure to the wheel cover 360, and then the wheel cover 360 drives the engagement member 330, allowing the engagement member 330 to swing and compress the elastic member 340, and the engagement region 331 is separated from the mounting hole 312. At this time, the rotary shaft 320 can be disengaged from the engagement member 330 and the mounting hole 312, and the wheel 310 can be disengaged from the rotary shaft 320.

[0049] As in Fig. 20-22, the structure according to a fourth example of the present disclosure is shown below.

[0050] As in Fig. 20-21, the easy-to-install and easy-to-remove wheel component 400 according to the first example is basically the same in structure as the second example, including a wheel 410, a rotating shaft 420, an engaging member 430, and an elastic member 440, respectively. A mounting hole 411 is disposed at a center of the wheel 410. An annular engaging groove 421 is disposed at one end of the rotating shaft 420, and the rotating shaft 420 can advance into or retract from the mounting hole 411. The engaging member 430 is disposed on one side of the wheel 410 and can move along a radial direction of the wheel 410. The elastic member 440 is a compression spring. The difference is that the engaging member 430 has an elongated hole 431 through which the rotating shaft 420 passes.One end of the elongated hole 431 has a first engagement region 432, the other end of the elongated hole 431 has a second engagement region 433, and the first engagement region 432 and the second engagement region 433 have different curvatures. More specifically, the edge of the first engagement region 432 has a circular arc shape, and the diameter of the curved edge of the first engagement region 432 is smaller than the diameter of the rotating shaft 420. The edge of the second engagement region 433 has a circular arc shape, and the diameter of the curved edge of the second engagement region 433 is larger than the diameter of the rotating shaft 420. The edge of the elongated hole 431 between the first engagement region 432 and the second engagement region 433 is arc-shaped.Thus, when the rotary shaft 420 is located in the first engagement region 432, the rotary shaft 420 can be engaged with the edge of the first engagement region 432; when the rotary shaft 420 is located in the second engagement region 433, the rotary shaft 420 can directly pass through the second engagement region 433 to disengage from the engagement member 430 to achieve the purpose of locking or releasing. A sliding portion 434 extends from one side of the engagement member 430. A through hole 412 is disposed on the side of the hub of the wheel 410 opposite the sliding portion 434. The sliding portion 434 can be pushed from the outside through the through hole 412 to push the engagement member 430, thereby sliding it.

[0051] As in Fig. As shown in Figure 21, when the wheel 410 needs to be installed and locked, it is only necessary to push the sliding portion 434, and then the second engagement region 433 directly faces the mounting hole 411. At this time, the rotary shaft 420 passes through the mounting hole 411 and the second engagement region 433, and the wheel 410 is slid onto the rotary shaft 420. After that, the engagement element 430 is released, the engagement element 430 is returned under the elastic force of the elastic element 440. At this time, the engagement element 430 is displaced, the first engagement region 432 directly faces the mounting hole 411, and the edge of the first engagement region 432 is engaged in the engagement region 421. Then, the rotary shaft 420 cannot come out of the mounting hole 411 due to the complete locking of the engaging member 430, and then the rotary shaft 420 can be connected and locked to the wheel 410.

[0052] In combination with those in Fig. 21, when the wheel 410 needs to be released and removed, it is only necessary to push the sliding portion 434, and then the second engagement region 433 directly faces the mounting hole 411. At this time, the rotating shaft 420 can be disengaged from the second engagement region 433 and the mounting hole 411, and the wheel 410 can be disengaged from the rotating shaft 420.

[0053] Compared with the prior art, the present disclosure provides the engagement member 430 such that the engagement member 430 is movably disposed on the engagement member 410. When the gear 410 and the rotary shaft 420 are connected to each other, the engagement member 430 can be moved to the engagement groove 421 of the rotary shaft 420 and is engaged with the engagement groove 421 to achieve the purpose of locking the gear 410 and the rotary shaft 420; when the engagement member 430 is moved to disengage it from the engagement groove 421, the purpose of releasing the gear 410 and the rotary shaft 420 is achieved. Thus, the gear 410 can be quickly attached and detached simply by manipulating the engagement member 430, which results in a simple structure and can achieve very convenient maintenance and use.

[0054] As in Fig. 23-27, the structure according to a first embodiment of the present disclosure is shown below.

[0055] In Fig. 23-26. The easy-to-install wheel component 500 according to the embodiment further includes a wheel 510, a rotating shaft 520, and an engaging member 530. A receiving chamber 511 is disposed at the center of the wheel 510, and a mounting hole 512 is disposed at a center of the receiving chamber 511. An annular engaging groove 521 is disposed at one end of the rotating shaft 520, the rotating shaft 520 can advance into or retract from the mounting hole 512, and the engaging member 530 is disposed in the receiving chamber 511 and has an elastic portion 531. Specifically, the engaging member 530 has a U-shaped structure, two ends of which form the elastic portions 531. The elastic portion 531 is elastically engaged in the engagement groove 521 to connect and lock the rotary shaft 520 and the wheel 510.

[0056] It will continue on Fig. 26-27, it is shown that a tail end of the elastic portion 531 extends from a guide portion 532. The easy-to-install and easy-to-remove wheel component 500 further includes a handling member 540, and the handling member 540 is disposed on one side of the wheel 510 and can be slid along a radial direction of the wheel 510. The handling member 540 has a slant hole 541, and the guide portion 532 is slidably disposed in the slant hole 541 to drive the elastic portions 531 to open. By providing the guide portion 532, the handling member 540 can more easily drive the elastic portion 531, thereby improving ease of handling.

[0057] The wheel component 500 for easy installation and removal includes a wheel cover 550. The wheel cover 550 is disposed on the receiving chamber 511 and covers the handling element 540. By providing the wheel cover 550, the engagement element 530 is shielded, thus making the wheel 510 look more attractive and high-quality.

[0058] When the wheel 510 needs to be installed and locked, it is necessary to press on the handling element 540 so that the handling element 540 is displaced and pushes the guide portion 532. The guide portion 532 is displaced toward the inclined hole 541 to cause the elastic portions 531 to open and separate from the mounting hole 512. At this time, the rotary shaft 520 can pass through the mounting hole 512, and the wheel 510 is slid onto the rotary shaft 520. After that, the handling element 540 is released, and the elastic portion 531 is returned under the elastic force. At this time, the elastic portion 531 is engaged in the engagement groove 521. The rotary shaft 520 cannot come out of the mounting hole 512 due to the complete locking of the engaging member 530, and then the rotary shaft 520 can be connected and locked to the wheel 510.

[0059] When the wheel 510 needs to be released and removed, it is only necessary to press the handling member 540 so that the handling member 540 slides and pushes the guide portion 532. The guide portion 532 slides toward the inclined hole 541 to cause the elastic portions 531 to open and separate from the mounting hole 512. At this time, the rotating shaft 520 can be disengaged from the engaging member 530 and the mounting hole 512, and then the wheel 510 can be disengaged from the rotating shaft 520.

[0060] Compared with the prior art, the present disclosure provides the engagement member 530 such that the elastic portion 531 is disposed at one end of the engagement member 530. By utilizing the springback property of the elastic portion 531, when the elastic portion 531 is in a natural state, the elastic portion 531 can spring back and be engaged in the engagement groove 521 of the rotary shaft 520 to connect and lock the rotary shaft 520 and the wheel 510; when the elastic portions 531 are forcibly opened, the elastic portions 531 can come out of the engagement groove 521 of the rotary shaft 520 to release the rotary shaft 520 and the wheel 510, thus achieving the purpose of decoupling the wheel 510 and the rotary shaft 520.Thus, the wheel 510 can be quickly mounted and dismounted only by handling the elastic portion 531, which results in a simple structure and can achieve very convenient maintenance and use.

[0061] As in Fig. 28-31, the structure according to a second embodiment of the present disclosure is shown below.

[0062] As in Fig. 28-30, the easy-to-install and easy-to-remove wheel component 600 according to the embodiment further includes a wheel 610, a rotating shaft 620, an engaging member 630, and an elastic member 640. A center of the wheel 610 and one end of the rotating shaft 620 are fixedly connected. The other end of the rotating shaft 620 has an engaging groove 621 and can advance into or retract from a mounting hole 611 of a support leg 1000 of a frame. The engaging member 630 is movably disposed on the support leg 1000. The elastic member 640 provides an elastic force for engaging the engaging member 630 in the engaging groove 621 to connect and lock the rotating shaft 620 and the support leg 1000. The elastic element 640 is a compression spring, one end of which is pressed against the engagement element 630 and the other end of which rests against the support foot 1000.When the engaging member 630 is disengaged from the engaging groove 621, the rotating shaft 620 is released and separated from the support leg 1000.

[0063] It will continue on Fig. Referring to Figure 31, the engagement member 630 is shown to have an elongated hole 631 through which the rotating shaft 620 passes. One end of the elongated hole 631 has a first engaging region 632, the other end of which has a second engaging region 633, and the first engaging region 632 and the second engaging region 633 have different curvatures. Specifically, the diameter of the curved edge of the first engaging region 632 is smaller than the diameter of the rotating shaft 620, and the diameter of the curved edge of the second engaging region 633 is larger than the diameter of the rotating shaft 620.Thus, when the rotary shaft 620 is located in the first engagement region 632, the rotary shaft 620 is engaged with the edge of the first engagement region 632; whereas, when the rotary shaft 620 is located in a second engagement region 633, the rotary shaft 620 can pass through the second engagement region 633 and be disengaged from the engagement member 630 to achieve the purpose of locking or releasing. One end of the engagement member 630 has a sliding portion 634, and the bottom of the support leg 1000 has a through-hole 1100. The through-hole 1100 directly faces the sliding portion 634, and the engagement member 630 can be pushed through the through-hole 1100 to be displaced.

[0064] As in Fig. 30, when the wheel 610 needs to be installed and locked, it is only necessary to push the sliding portion 634 so that the second engagement region 633 directly faces the mounting hole 611. At this time, the rotary shaft 620 passes through the second engagement region 633 and the mounting hole 611 of the support leg 1000. Thereafter, the engagement element 630 is released, and the engagement element 630 is returned under the elastic force of the elastic element 640. At this time, the engagement element 630 is displaced, the first engagement region 632 directly faces the mounting hole 611, and the edge of the first engagement region 632 is engaged in the engagement region 621. Thus, due to the complete locking of the engagement element 630, the wheel 610, the rotary shaft 620 cannot come out of the mounting hole 611, and then the rotary shaft 620 can be connected and locked to the support leg 1000.

[0065] As in Fig.As shown in Figure 30, when the wheel 610 needs to be released and removed, it is necessary to push the sliding portion 634 so that the second engagement region 633 directly faces the mounting hole 611. At this time, the rotating shaft 620 can be disengaged from the second engagement region 633 and the mounting hole 611, and the wheel 610 and the rotating shaft 620 can be disengaged from the support leg 1000.

[0066] Compared to the prior art, the present disclosure provides an engagement member 630 for connecting the wheel 610 and the rotary shaft 620. The engagement member 630 is movably disposed on the support leg 1000. When the rotary shaft 620 and the support leg 1000 are connected, the engagement member 630 can be moved toward the engagement groove 621 of the rotary shaft 620 and engaged in the engagement groove 621 to achieve the purpose of locking the wheel 610. When the engagement member 630 is moved to disengage it from the engagement groove 621, the purpose of releasing the wheel 610 is achieved. Thus, the wheel 610 can be quickly attached and detached simply by manipulating the engagement member 630, which results in a simple structure and can achieve very convenient maintenance and use.

[0067] The contents disclosed above are only some examples of the present disclosure and should not be used to limit the scope of the present disclosure. Therefore, all equivalent variations made according to the claims of the present application are within the scope of the present disclosure.

Claims

[1] A wheel component (500) for easy assembly and disassembly, comprising a wheel (510) and a rotary shaft (520), wherein a mounting hole (512) is arranged in a center of the wheel (510), characterized by an engagement element (530), wherein an engagement groove (521) is arranged at one end of the rotary shaft (520), the rotary shaft (520) is capable of advancing into or retracting from the mounting hole (512), the engagement element (530) is arranged on one side of the wheel (510) and has an elastic portion (531), and the elastic portion (531) is elastically engaged in the engagement groove (521) and enables connection and locking of the rotary shaft (520) to the wheel (510). [2] The wheel component (500) for easy installation and removal according to claim 1, wherein the engagement member has a U-shaped structure and two ends of the U-shaped structure form the elastic portions (531). [3] The wheel component (500) for easy installation and removal according to claim 1 or 2, further comprising a handling member (540) slidably disposed on one side of the wheel (510) for pushing the elastic portion (531) away from the engagement groove (521). [4] The wheel component (500) for easy installation and removal according to claim 3, wherein tail ends of the elastic portions (531) extend from guide portions (532), the handling member (540) comprises inclined holes (541), the guide portions (532) are slidably disposed in the inclined holes (541) to cause the elastic portions (531) to open. [5] The wheel component (500) for easy assembly and disassembly according to any one of claims 3 or 4, further comprising a wheel cover (550) disposed on one side of the wheel (510) and covering the handling member (540). [6] Wheel component (600) for easy assembly and disassembly, comprising a wheel (610) and a rotary shaft (620), characterized by an engagement element (630) and an elastic element (640), wherein one end of the rotary shaft (620) is fixedly connected to a center of the wheel (610), the other end of the rotary shaft (620) comprises an engagement groove (621) and is capable of advancing into or retracting from a support leg (1000) of the frame, the engagement element (630) is movably arranged on the support leg (1000), the elastic element (640) provides an elastic force for engaging the engagement element (630) in the engagement groove (651) so that the rotary shaft (620) is connected and locked to the support leg (1000), and the rotary shaft (620) is released and separated from the support leg (1000) when the engagement element (630) is disengaged from the engagement groove (621). [7] The wheel component (600) for easy installation and removal according to claim 6, wherein an elongated hole (631) through which the rotary shaft (620) passes is arranged on the engagement member (630), a first engagement region (632) is arranged at one end of the elongated hole (631), a second engagement region (633) is arranged at the other end of the elongated hole (631), and the first engagement region (632) and the second engagement region (633) have different curvatures. [8] The easy-to-install and easy-to-remove wheel component (600) according to claim 7, wherein a diameter of a curved edge of the first engagement region (632) is smaller than a diameter of the rotary shaft (620), and a diameter of a curved edge of the second engagement region (633) is larger than the diameter of the rotary shaft (620).

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