Quick-release wheel of luggage case

Abstract

A quick-release wheel of a luggage case comprises a wheel fork, a shaft nail and a wheel body, the wheel fork is provided with a quick-release assembly position, the wheel fork is provided with a quick-release sliding groove and a quick-release fixing buckle, the quick-release assembly position is provided with a quick-release frame and a quick-release fixing nail, the quick-release fixing nail is connected with one end of the quick-release frame, the quick-release fixing nail penetrates through the quick-release sliding groove, and the quick-release fixing buckle is connected with the quick-release frame. One end of the quick-release frame is provided with a quick-release fixing buckle, the other end of the quick-release frame is provided with a quick-release fixing buckle position, the quick-release fixing buckle position is matched with the quick-release fixing buckle, the quick-release frame can move up and down at the quick-release assembly position, and the quick-release fixing nail can move back and forth in the quick-release sliding groove. The wheels can be disassembled and assembled only by opening or pressing the quick disassembling frame, the operation is simple and quick, the service life of the luggage case is prolonged, various wheels with different functions can be quickly replaced to adapt to different use scenes when necessary, and the requirements of users are well met.

Description

Technical Field

[0001] The utility model relates to the technical field of luggage cases, in particular to a quick-release wheel for a luggage case. Background Art

[0002] In many travel situations, suitcases have become essential equipment for travel. Suitcases are usually composed of a body and wheels. The wheels can be used to move the suitcase very conveniently. The wheels at the bottom of the suitcase are the part that directly contacts the ground and bear the greatest pressure, making them the most easily damaged parts of the suitcase.

[0003] In the prior art, the wheels of a suitcase are very difficult to remove. Not only do they require special tools, but sometimes they even require the suitcase body to be destroyed to remove the wheels. Therefore, a structure that facilitates the removal and assembly of suitcase wheels is needed to facilitate people to quickly replace the wheels when the suitcase wheels are damaged, thereby extending the service life of the suitcase. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a quick-release wheel for a luggage case.

[0005] The purpose of this utility model is achieved through the following technical solutions:

[0006] The quick-release wheel of a suitcase comprises a wheel fork, an axle nail, and a wheel. The wheel is connected to the wheel fork, and the axle nail can be inserted into the wheel fork. The wheel fork is provided with a quick-release assembly position, and the quick-release assembly position is U-shaped and recessed, which can accommodate a quick-release frame. The wheel fork is provided with a quick-release slide, and the quick-release slide is arranged on the side of the quick-release assembly position close to the axle nail hole and is in the shape of a rectangular through hole. The quick-release slide can accommodate a quick-release fixing nail and the width of the quick-release slide is greater than the width of the quick-release fixing nail. The wheel fork is provided with a quick-release fixing buckle, and the quick-release fixing buckle is a trapezoidal protrusion on the upper surface of the wheel fork. The quick-release assembly position is provided with a quick-release frame and a quick-release fixing nail. The quick-release frame is provided with a U-shaped groove and can be inserted into the quick-release assembly position. The quick-release fixing nail passes through the quick-release slide of the quick-release assembly position. The nail is connected to one end of the quick-release frame, and the quick-release fixing nail is connected to the quick-release frame through the quick-release frame fixing hole. The other end of the quick-release frame is provided with a quick-release fixing buckle, and the quick-release fixing buckle matches the quick-release fixing buckle. The quick-release frame can move up and down in the quick-release assembly position, and the quick-release fixing nail can move forward and backward in the quick-release slide groove. When the axle nail is inserted into the axle nail hole, the quick-release frame is pressed down and fixed by the quick-release fixing buckle. At this time, the quick-release fixing nail slides forward and is stuck in the axle nail fixing groove of the axle nail, thereby locking the suitcase and the wheel. The quick-release frame is lifted up and the quick-release fixing buckle is disengaged from the quick-release fixing buckle through deformation. At this time, the quick-release fixing nail slides backward to leave the axle nail fixing groove of the axle nail, and the axle nail can be pulled out of the axle nail hole to realize the removal of the wheel.

[0007] In one embodiment, when the quick release frame moves upward, the quick release fixing nail moves backward in the quick release sliding groove, and when the quick release frame moves downward, the quick release fixing nail moves forward in the quick release sliding groove, the quick release frame abuts the contact surface of the wheel fork, when the quick release frame rotates upward, the quick release fixing nail fixed to the other end of the quick release frame moves backward, and when the quick release frame rotates downward, the quick release fixing nail fixed to the other end of the quick release frame moves forward.

[0008] In one embodiment, the wheel fork is provided with an axle pin hole, the diameter of the axle pin hole is larger than the diameter of the lower half of the axle pin, the axle pin is inserted into the axle pin hole, and an axle pin fixing groove is provided above the bottom of the axle pin. The position of the axle pin fixing groove matches the quick release sliding groove, and the quick release fixing pin can enter the axle pin fixing groove. When the quick release fixing pin enters the axle pin fixing groove, the axle pin is fixed by the quick release fixing pin and cannot slide up and down, thereby realizing rapid installation of the wheel.

[0009] In one of the embodiments, the quick-release fixing buckle is provided on the upper surface of the wheel fork in the form of a trapezoidal protrusion, and the quick-release fixing buckle position is provided on the quick-release frame in the form of a trapezoidal hole. The quick-release fixing buckle can enter the quick-release fixing buckle position. When the quick-release frame is rotated downward, the quick-release fixing buckle enters the quick-release fixing buckle position to clamp the quick-release frame, so that the quick-release frame cannot rotate upward. When an external force lifts the quick-release frame, the quick-release frame is disengaged from the quick-release fixing buckle through deformation, and the locked state is released. A quick-release frame lifting head is provided at one end of the quick-release frame, which is inclined downward. The quick-release frame lifting head increases the force surface for the user to lift the quick-release frame, making it easier for the user to lift the quick-release frame.

[0010] In one embodiment, the wheel fork is provided with a wheel connecting hole, a wheel fixing nail is provided in the wheel connecting hole, the wheel fixing nail is connected to the wheel, the wheel has two pieces respectively fixed at both ends of the wheel fixing nail, the wheel fixing nail passes through the wheel connecting hole of the wheel fork to realize the connection between the wheel and the wheel fork, a wheel seat is provided above the axle nail, the wheel seat is fixed on the suitcase, the top of the axle nail is connected to the wheel seat, the axle nail is fixed to the wheel seat of the suitcase, and the wheel quick release function is realized by the quick release structure and the locking and release state of the axle nail.

[0011] In one embodiment, the quick-release assembly position is provided on the wheel fork in a U-shaped recess, and a quick-release frame U-shaped groove is provided at one end of the quick-release frame. The U-shaped groove of the quick-release frame matches the shape of the quick-release assembly position, and the height of the U-shaped opening of the quick-release assembly position is greater than the height of the U-shaped groove of the quick-release frame. The quick-release frame can rotate up and down at the quick-release assembly position, and the quick-release frame is provided with a quick-release frame fixing hole. The quick-release fixing nail passes through the quick-release frame fixing hole and is connected to the quick-release frame, and the quick-release fixing nail moves with the quick-release frame.

[0012] In one embodiment, the quick-release sliding groove is obliquely opened on the side of the shaft pin hole. The oblique design prevents the shaft pin from being stuck by the quick-release fixing pin when inserted into the shaft pin hole.

[0013] In one embodiment, a spring is provided between the quick-release frame and the wheel fork. The spring support prevents the quick-release frame from falling when it is in the disassembled state, thereby preventing the quick-release fixing nail from getting stuck in the axle nail when the wheel is disassembled and assembled. The wheel fork is provided with a wheel fork spring fixing point, and the quick-release frame is provided with a quick-release frame spring fixing point. One end of the spring is connected to the wheel fork spring fixing point, and the other end of the spring is connected to the quick-release frame spring fixing point. The wheel fork spring fixing point is a cylindrical protrusion on the opposite surface of the wheel fork and the quick-release frame. The quick-release frame spring fixing point is a cylindrical protrusion on the opposite surface of the quick-release frame and the wheel fork. The cylindrical protrusion matches the inner ring of the spring, thereby improving the stability of the spring connection.

[0014] In one embodiment, a quick release frame limiting protrusion is provided at the bottom of the quick release frame, and a quick release frame limiting groove is provided on the upper surface of the wheel fork. The quick release frame limiting protrusion matches the quick release frame limiting groove. The quick release frame limiting protrusion is a semi-cylindrical protrusion on the bottom surface of the quick release frame, and the quick release frame limiting groove is a semi-cylindrical recessed on the upper surface of the wheel fork. The quick release frame limiting protrusion can be inserted into the quick release frame limiting groove.

[0015] In one embodiment, a deformation groove is provided on the upper surface of the wheel fork, and the deformation groove is provided on one side of the quick release frame limiting groove. The deformation groove is closely attached to the quick release frame limiting groove, and reserves space for the deformation generated when the quick release frame limiting protrusion is stuck in the quick release frame limiting groove, thereby saving effort.

[0016] Beneficial effects of the utility model:

[0017] Due to the adoption of the above technical solution, the present invention can conveniently and quickly replace the wheel components of the suitcase that are most easily damaged, thereby maintaining the normal use state of the suitcase. When removing and installing the wheels, it is only necessary to open or press the quick-release frame. The operation is simple and fast, which not only extends the service life of the suitcase, but also allows for the rapid replacement of wheels with various functions when necessary to adapt to different usage scenarios, thereby greatly enhancing the product potential of the suitcase. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is an exploded view of the utility model.

[0020] Figure 2 This is a three-dimensional diagram of the wheel fork.

[0021] Figure 3 This is a three-dimensional diagram of the quick-release frame.

[0022] Figure 4 This is a cross-sectional view of the utility model in a tight-fitting state.

[0023] Figure 5 This is a cross-sectional view of the disassembly process of the utility model.

[0024] Figure 6 This is a cross-sectional view of the utility model in a disassembled state.

[0025] Figure 7 This is a diagram of the tight fitting state of the utility model.

[0026] Figure 8 This is a diagram of the disassembled state of the utility model.

[0027] Figure 9 This is an exploded view of the quick-release wheel with a spring.

[0028] Figure 10 This is the front view of the fork with a spring quick-release wheel.

[0029] Figure 11 This is a three-dimensional view of a fork with a spring quick-release wheel.

[0030] Figure 12 This is a three-dimensional view of a quick-release rack with a spring-loaded quick-release wheel.

[0031] Figure 13 This is a three-dimensional diagram of the quick-release frame and spring with a spring quick-release wheel.

[0032] Figure 14 This is a diagram of the tight fit state of the spring quick-release wheel.

[0033] Figure 15 This is a diagram of the disassembled state of the spring quick-release wheel.

[0034] : The numbers in the figure represent: fork 1, axle nail 2, quick release frame 3, quick release fixing nail 4, wheel 5, quick release assembly position 6, quick release slide groove 7, quick release fixing buckle 8, quick release fixing buckle position 9, quick release frame fixing hole 10, quick release frame U-shaped groove 11, quick release frame lifting head 12, axle nail hole 13, axle nail fixing groove 14, wheel connecting hole 15, wheel fixing nail 16, wheel seat 17, spring 18, fork spring fixing point 19, quick release frame spring fixing point 20, quick release frame limiting protrusion 21, quick release frame limiting groove 22, deformation groove 23. DETAILED DESCRIPTION

[0035] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be provided below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the disclosure of the present invention.

[0036] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are intended solely for the purpose of describing specific embodiments and are not intended to limit this invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0038] Please refer to the first embodiment of the utility model Figure 1-8 :

[0039] A quick-release wheel for a suitcase includes a wheel fork 1, an axle nail 2, and a wheel 5. The wheel fork 1 is provided with a quick-release assembly position 6, the wheel fork 1 is provided with a quick-release slide groove 7, and the wheel fork 1 is provided with a quick-release fixing buckle 8. The quick-release assembly position 6 is provided with a quick-release frame 3 and a quick-release fixing nail 4. The quick-release fixing nail 4 is connected to one end of the quick-release frame 3, and the quick-release fixing nail 4 passes through the quick-release slide groove 7. The other end of the quick-release frame 3 is provided with a quick-release fixing buckle position 9, and the quick-release fixing buckle position 9 matches the quick-release fixing buckle 8. The quick-release frame 3 can move up and down at the quick-release assembly position 6, and the quick-release fixing nail 4 can move forward and backward in the quick-release slide groove 7.

[0040] By adopting the above technical solution, the wheel 5 is connected to the fork 1, and the axle nail 2 can be locked or released simply and quickly by the fork 1, so that the wheel 5 can be quickly disassembled and assembled. The U-shaped recessed quick-release assembly position 6 on the fork 1 accommodates the quick-release frame 3 and the quick-release slide 7. The quick-release slide 7 accommodates the quick-release fixing nail 4 and the width of the quick-release slide 7 is greater than the width of the quick-release fixing nail 4. The upper surface of the fork 1 is provided with a trapezoidal protrusion quick-release fixing buckle 8, the quick-release frame 3 with a U-shaped groove is inserted into the quick-release assembly position 6, the quick-release fixing nail 4 passes through the quick-release slide 7 of the quick-release assembly position 6, and the quick-release fixing nail 4 and the quick-release frame are connected. 3 is connected to the quick-release frame fixing hole 10 at one end of the quick-release frame 3, and the quick-release fixing buckle position 9 at the other end of the quick-release frame 3 matches the quick-release fixing buckle 8. When the axle pin 2 is inserted into the axle pin hole 13, the quick-release frame 3 is pressed downward and fixed by the quick-release fixing buckle 8. At this time, the quick-release fixing pin 4 slides forward and is stuck in the axle pin fixing groove 14 of the axle pin 2, thereby locking the luggage case and the wheel 5. The quick-release frame 3 is lifted up and deformed to cause the quick-release fixing buckle position 9 to disengage from the quick-release fixing buckle 8. At this time, the quick-release fixing pin 4 slides backward and leaves the axle pin fixing groove 14 of the axle pin 2, and the axle pin 2 can be pulled out of the axle pin hole 13 to realize the removal of the wheel 5.

[0041] Preferably, when the quick release frame 3 moves upward, the quick release fixing nail 4 moves backward in the quick release sliding groove 7 , and when the quick release frame 3 moves downward, the quick release fixing nail 4 moves forward in the quick release sliding groove 7 .

[0042] By adopting the above technical solution, the quick release frame 3 abuts against the contact surface of the wheel fork 1. When the quick release frame 3 rotates upward, the quick release fixing nail 4 fixed to the other end of the quick release frame 3 moves backward. When the quick release frame 3 rotates downward, the quick release fixing nail 4 fixed to the other end of the quick release frame 3 moves forward.

[0043] Preferably, the wheel fork 1 is provided with an axle pin hole 13, the axle pin 2 is inserted into the axle pin hole 13, an axle pin fixing groove 14 is provided above the bottom of the axle pin 2, the position of the axle pin fixing groove 14 matches the quick release slide groove 7, and the quick release fixing pin 4 can enter the axle pin fixing groove 14.

[0044] By adopting the above technical solution, the diameter of the axle pin hole 13 of the fork 1 is larger than the diameter of the lower half of the axle pin 2. The axle pin 2 is inserted into the axle pin hole 13. The position of the axle pin fixing groove 14 above the bottom of the axle pin 2 matches the quick release slide groove 7 and can accommodate the quick release fixing pin 4. When the quick release fixing pin 4 enters the axle pin fixing groove 14, the axle pin 2 is fixed by the quick release fixing pin 4 and cannot slide up and down, thereby realizing the rapid installation of the wheel 5.

[0045] Preferably, the quick release fixing buckle 8 is provided on the upper surface of the fork 1 in the form of a trapezoidal protrusion, and the quick release fixing buckle position 9 is provided on the quick release frame 3 in the form of a trapezoidal hole. The quick release fixing buckle 8 can enter the quick release fixing buckle position 9, and one end of the quick release frame 3 is provided with a quick release frame lifting head 12 inclined downward.

[0046] By adopting the above technical solution, the quick-release fixing buckle 8 with a trapezoidal protrusion on the upper surface of the fork 1 can enter the quick-release fixing buckle position 9 with a trapezoidal hole on the quick-release frame 3. When the quick-release frame 3 rotates downward, the quick-release fixing buckle 8 enters the quick-release fixing buckle position 9 and clamps the quick-release frame 3, so that the quick-release frame 3 cannot rotate upward. When an external force opens the quick-release frame 3, the quick-release frame 3 is disengaged from the quick-release fixing buckle 8 through deformation, and the locked state is released. The quick-release frame lifting head 12 at one end of the quick-release frame 3 that is inclined downward increases the force-bearing surface for the user to lift the quick-release frame 3, making it easier for the user to lift the quick-release frame 3.

[0047] Preferably, the wheel fork 1 is provided with a wheel connecting hole 15, a wheel fixing nail 16 is provided in the wheel connecting hole 15, the wheel fixing nail 16 is connected to the wheel 5, a wheel seat 17 is provided above the axle nail 2, the wheel seat 17 is fixed on the suitcase, and the top of the axle nail 2 is connected to the wheel seat 17.

[0048] By adopting the above technical solution, the wheel 5 is fixed on the wheel fixing nail 16, and the wheel fixing nail 16 passes through the wheel connecting hole 15 of the fork 1 to realize the connection between the wheel 5 and the fork 1. The top of the axle nail 2 is connected to the wheel seat 17 fixed on the luggage box, and the quick release function of the wheel 5 is realized by the quick release structure and the locking and release state of the axle nail 2.

[0049] Preferably, the quick release assembly position 6 is provided on the wheel fork 1 in a U-shaped recessed shape, one end of the quick release frame 3 is provided with a quick release frame U-shaped groove 11, the quick release frame U-shaped groove 11 matches the shape of the quick release assembly position 6, the quick release frame 3 is provided with a quick release frame fixing hole 10, and the quick release fixing nail 4 passes through the quick release frame fixing hole 10 to be connected to the quick release frame 3.

[0050] By adopting the above technical solution, the U-shaped recessed quick-release assembly position 6 on the fork 1 matches the shape of the quick-release frame U-shaped groove 11 at one end of the quick-release frame 3. The height of the U-shaped opening of the quick-release assembly position 6 is greater than the height of the U-shaped groove 11 of the quick-release frame. The quick-release frame 3 can rotate up and down at the quick-release assembly position 6. The quick-release fixing nail 4 passes through the quick-release frame fixing hole 10 of the quick-release frame 3 and is connected to the quick-release frame 3. The quick-release fixing nail 4 moves with the quick-release frame 3.

[0051] Preferably, the quick-release sliding groove 7 is obliquely opened on the side of the pin hole 13 .

[0052] By adopting the above technical solution, the quick-release sliding groove 7 obliquely opened on the side of the shaft pin hole 13 prevents the shaft pin 2 from being stuck by the quick-release fixing pin 4 when being inserted into the shaft pin hole 13 .

[0053] Please refer to the second embodiment of the utility model Figure 9-15 :

[0054] Preferably, a spring 18 is provided between the quick-release frame 3 and the wheel fork 1 , the wheel fork 1 is provided with a wheel fork spring fixing point 19 , and the quick-release frame 3 is provided with a quick-release frame spring fixing point 20 .

[0055] By adopting the above technical solution, the spring 18 between the quick-release frame 3 and the wheel fork 1 supports the quick-release frame 3, so that the quick-release frame 3 does not fall when it is in the disassembled state, and the quick-release fixing nail 4 is kept on the side of the quick-release slide groove 7 and does not enter the shaft nail 2 hole, so as to prevent the quick-release fixing nail 4 from getting stuck in the shaft nail 2 when the wheel 5 is disassembled and assembled. The wheel fork spring fixing point 19 with a cylindrical protrusion on the opposite side of the wheel fork 1 and the quick-release frame 3 and the quick-release frame spring fixing point 20 with a cylindrical protrusion on the opposite side of the quick-release frame 3 and the wheel fork 1 fix the two ends of the spring 18. The cylindrical protrusion matches the inner ring of the spring 18, which improves the stability of the connection of the spring 18 and prevents the spring 18 from falling off.

[0056] Preferably, a quick release frame limiting protrusion 21 is provided on the bottom of the quick release frame 3 , and a quick release frame limiting groove 22 is provided on the upper surface of the wheel fork 1 , and the quick release frame limiting protrusion 21 matches the quick release frame limiting groove 22 .

[0057] By adopting the above technical solution, the quick-release frame limiting protrusion 21 with a semi-cylindrical protrusion on the bottom of the quick-release frame 3 matches the quick-release frame limiting groove 22 with a semi-cylindrical recess on the upper surface of the fork 1 in shape. The quick-release frame limiting protrusion 21 can be snapped into the quick-release frame limiting groove 22 through plastic deformation, preventing the quick-release frame 3 from falling off, thereby improving the stability of the tight-fitting state of the quick-release frame 3.

[0058] Preferably, a deformation groove 23 is provided on the upper surface of the wheel fork 1 , and the deformation groove 23 is provided on one side of the quick release frame limiting groove 22 .

[0059] By adopting the above technical solution, the deformation groove 23 on the upper surface of the fork 1 closely attached to one side of the quick release frame limiting groove 22 reserves space for the deformation generated when the quick release frame limiting protrusion 21 is clamped into the quick release frame limiting groove 22, saving effort.

[0060] Working principle: The quick-release frame 3 is moved up and down to drive the quick-release fixing pin 4 to move in the quick-release slide groove 7. After the axle pin 2 is inserted, the quick-release frame 3 is moved downward and locked by the quick-release fixing buckle 8. The quick-release fixing pin 4 is inserted into the axle pin fixing groove 14 of the axle pin 2 to realize the installation of the wheel 5. The quick-release frame 3 is opened and disengaged from the quick-release fixing buckle 8, so that the quick-release fixing pin 4 leaves the axle pin fixing groove 14 of the axle pin 2 to realize the removal of the wheel 5.

[0061] During use, the user inserts the axle pin 2 fixed on the suitcase into the axle pin hole 13 of the wheel 5 to be replaced as needed, and presses the quick-release frame 3 to engage the quick-release fixing buckle 8 to install the wheel 5. When removing, the user only needs to lift the quick-release frame 3 upwards to pull the axle pin 2 out of the wheel 5 to remove the wheel 5.

[0062] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A quick-release wheel for a suitcase, comprising a wheel fork (1), an axle pin (2), and a wheel (5), characterized in that: The wheel fork (1) is provided with a quick-release assembly position (6), the wheel fork (1) is provided with a quick-release slide groove (7), the wheel fork (1) is provided with a quick-release fixing buckle (8), the quick-release assembly position (6) is provided with a quick-release frame (3), a quick-release fixing nail (4), the quick-release fixing nail (4) is connected to one end of the quick-release frame (3), the quick-release fixing nail (4) passes through the quick-release slide groove (7), the other end of the quick-release frame (3) is provided with a quick-release fixing buckle position (9), the quick-release fixing buckle position (9) matches the quick-release fixing buckle (8), the quick-release frame (3) can move up and down at the quick-release assembly position (6), and the quick-release fixing nail (4) can move forward and backward in the quick-release slide groove (7).

2. The quick-release wheel for a luggage case according to claim 1, characterized in that: When the quick-release frame (3) moves upward, the quick-release fixing nail (4) moves backward in the quick-release sliding groove (7); when the quick-release frame (3) moves downward, the quick-release fixing nail (4) moves forward in the quick-release sliding groove (7).

3. The quick-release wheel for a luggage case according to claim 1, characterized in that: The wheel fork (1) is provided with an axle pin hole (13), the axle pin (2) is inserted into the axle pin hole (13), an axle pin fixing groove (14) is provided above the bottom of the axle pin (2), the position of the axle pin fixing groove (14) matches the quick-release sliding groove (7), and the quick-release fixing pin (4) can enter the axle pin fixing groove (14).

4. The quick-release wheel for a luggage case according to claim 1, characterized in that: The quick-release fixing buckle (8) is provided on the upper surface of the wheel fork (1) in the form of a trapezoidal protrusion, the quick-release fixing buckle position (9) is provided on the quick-release frame (3) in the form of a trapezoidal hole, the quick-release fixing buckle (8) can enter the quick-release fixing buckle position (9), and one end of the quick-release frame (3) is provided with a quick-release frame lifting head (12) inclined downward.

5. The quick-release wheel for a luggage case according to claim 1, characterized in that: The wheel fork (1) is provided with a wheel connecting hole (15), a wheel fixing nail (16) is provided in the wheel connecting hole (15), the wheel fixing nail (16) is connected to the wheel (5), a wheel seat (17) is provided above the axle nail (2), the wheel seat (17) is fixed on the suitcase, and the top of the axle nail (2) is connected to the wheel seat (17).

6. The quick-release wheel for a luggage case according to claim 1, characterized in that: The quick-release assembly position (6) is provided on the wheel fork (1) in a U-shaped recessed shape. A quick-release frame U-shaped groove (11) is provided at one end of the quick-release frame (3). The quick-release frame U-shaped groove (11) matches the shape of the quick-release assembly position (6). The quick-release frame (3) is provided with a quick-release frame fixing hole (10). The quick-release fixing nail (4) passes through the quick-release frame fixing hole (10) and is connected to the quick-release frame (3).

7. The quick-release wheel for a luggage case according to claim 3, characterized in that: The quick-release slide groove (7) is obliquely opened on the side of the axle pin hole (13).

8. The quick-release wheel for a luggage case according to claim 1, characterized in that: A spring (18) is provided between the quick-release frame (3) and the wheel fork (1), the wheel fork (1) is provided with a wheel fork spring fixing point (19), and the quick-release frame (3) is provided with a quick-release frame spring fixing point (20).

9. The quick-release wheel for a luggage case according to claim 1, characterized in that: A quick-release frame limiting protrusion (21) is provided at the bottom of the quick-release frame (3), and a quick-release frame limiting groove (22) is provided on the upper surface of the wheel fork (1), wherein the quick-release frame limiting protrusion (21) matches the quick-release frame limiting groove (22).

10. The quick-release wheel for a luggage case according to claim 9, characterized in that: The upper surface of the wheel fork (1) is provided with a deformation groove (23), and the deformation groove (23) is provided on one side of the quick-release frame limiting groove (22).

Images