Running vehicle

Abstract

The invention discloses a running vehicle. The treadmill comprises a treadmill body, wheels are arranged on the treadmill body, the treadmill further comprises a traction device, the traction device comprises a pull rod and a waistline assembly used for being connected with the waist of a user, the pull rod is connected with the treadmill body, and the waistline assembly is connected with the front end of the pull rod. And the treadmill is driven to advance through the strength of the waist of the user. The waistline assembly can be quickly disassembled and assembled.

Description

[0001] This application is a division of the invention with application number CN202011063953.4 and application date September 30, 2020. Technical Field

[0002] The invention belongs to the field of children's products, and in particular relates to a treadmill. Background Art

[0003] The treadmill is a kind of children's carriage. The treadmill is equipped with a waist assembly, which is used to be connected to the waist of the user, and the treadmill is driven forward by the power of the waist.

[0004] In an emergency, the user needs to immediately get off the treadmill. However, because the waist assembly is tightly connected to the body, it is difficult to immediately peel the waist assembly off the body, which causes burden and danger to the user.

[0005] Therefore, in order to quickly detach from the treadmill, a traction device and a treadmill are needed that can quickly disassemble and install the waist assembly. Summary of the invention

[0006] An object of the present invention is to provide a treadmill capable of quickly disassembling and assembling a first component, such as a waist assembly.

[0007] In order to achieve the above object, the technical solution adopted by the present invention is:

[0008] A treadmill comprises a treadmill body, the treadmill body is provided with wheels, the treadmill further comprises a traction device, the traction device comprises a pull rod and a waist component for connecting to the waist of a user, the pull rod is connected to the treadmill body, the waist component is connected to the front end of the pull rod, so that the treadmill is driven forward by the power of the user's waist.

[0009] In one embodiment, the waist component is detachably connected to the front end of the pull rod; a locking mechanism is provided between the front end of the pull rod and the waist component, and when the locking mechanism is in an unlocked state, the waist component is detached from the treadmill body.

[0010] In one embodiment, a fixed shaft is provided on the waist assembly, the fixed shaft has a neck with a smaller outer diameter, and a fixed cavity is provided on the front end of the pull rod;

[0011] When the locking mechanism is in a locked state, the fixed shaft is inserted into the fixed cavity and locked in the fixed cavity by the locking mechanism, and the waist assembly is connected to the pull rod;

[0012] When the locking mechanism is in an unlocked state, the fixing shaft can be disengaged from the fixing cavity to enable the waist assembly to be disengaged from the treadmill body.

[0013] In one embodiment, the locking mechanism comprises:

[0014] A locking plate, the locking plate being slidably disposed on the pull rod along the radial direction of the fixed shaft;

[0015] A button, the button is used to disengage the locking plate from the neck, the button having an operating portion exposed from the pull rod;

[0016] An elastic member is located between the button and the pull rod, and has a tendency to make the locking plate slide toward the neck.

[0017] In one embodiment, the locking mechanism includes two locking plates, two buttons and two elastic members, the first locking plate, the first button and the first elastic member cooperate with each other, the second locking plate, the second button and the second elastic member cooperate with each other, the two locking plates are respectively located on opposite sides of the neck, and the two buttons are respectively located on opposite sides of the fixed axis.

[0018] In one embodiment, the first elastic member is disposed between the first locking plate and the second button, and the second elastic member is disposed between the second locking plate and the first button.

[0019] In one embodiment, the end surface of the locking piece in contact with the neck is an arc-shaped surface adapted to the neck.

[0020] In one embodiment, the first locking plate has a first end face for contacting the neck and a second end face for abutting and cooperating with the first button, and the second locking plate has a third end face for contacting the neck and a fourth end face for abutting and cooperating with the second button.

[0021] In one embodiment, the first button has a first operating portion that exposes the pull rod, the first end face and the second end face both face the first operating portion, and the second end face and the first operating portion are in abutment with each other; the second button has a second operating portion that exposes the pull rod, the third end face and the fourth end face both face the second operating portion, and the fourth end face and the second operating portion are in abutment with each other; the first operating portion and the second operating portion are located on opposite sides of the fixed axis.

[0022] In one embodiment, the first locking piece and the second locking piece are L-shaped respectively.

[0023] In one embodiment, the number of the wheels is two.

[0024] The present invention also adopts the following technical solution:

[0025] A quick-release assembly comprises a first component and a second component, wherein the first component is provided with a fixed shaft, the fixed shaft having a neck with a smaller outer diameter, the second component is provided with a fixed cavity, the fixed shaft is inserted into the fixed cavity, the quick-release assembly further comprises a locking mechanism for locking the fixed shaft in the fixed cavity, when the locking mechanism is in an unlocked state, the first component is detachably connected to the second component,

[0026] The locking mechanism comprises:

[0027] a locking plate, the locking plate being slidably disposed on the second component along the radial direction of the fixed shaft;

[0028] a button, the button being used to disengage the locking plate from the neck, the button having an operating portion exposed from the second component;

[0029] An elastic member is located between the button and the second member, and has a tendency to make the locking plate slide toward the neck.

[0030] Preferably, the locking mechanism includes two locking plates, two buttons and two elastic members, the first locking plate, the first button and the first elastic member cooperate with each other, the second locking plate, the second button and the second elastic member cooperate with each other, the two locking plates are respectively located on opposite sides of the neck, and the two buttons are respectively located on opposite sides of the fixed axis.

[0031] More preferably, the first elastic member is disposed between the first locking plate and the second button, and the second elastic member is disposed between the second locking plate and the first button.

[0032] Preferably, the end surface of the locking piece in contact with the neck is an arc-shaped surface adapted to the neck.

[0033] More preferably, the first locking plate has a first end face for contacting the neck and a second end face for abutting and cooperating with the first button, and the second locking plate has a third end face for contacting the neck and a fourth end face for abutting and cooperating with the second button.

[0034] Further, the first button has a first operating portion that exposes the second component, the first end face and the second end face both face the first operating portion, and the second end face and the first operating portion are in abutment with each other; the second button has a second operating portion that exposes the second component, the third end face and the fourth end face both face the second operating portion, and the fourth end face and the second operating portion are in abutment with each other; the first operating portion and the second operating portion are located on opposite sides of the fixed axis.

[0035] Furthermore, the first locking piece and the second locking piece are L-shaped respectively.

[0036] Another technical solution adopted by the present invention is as follows:

[0037] A traction device comprises the quick-release assembly as described above.

[0038] Preferably, the first component is a waist component, and the second component is a pull rod.

[0039] Another technical solution adopted by the present invention is as follows:

[0040] A treadmill comprises a treadmill body, the treadmill further comprising the quick-release assembly as claimed in any one of claims 1 to 7, the second component being connected to the treadmill body.

[0041] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art: the treadmill of the present invention can quickly disassemble and install the waist assembly through the locking mechanism, and the fixed axis on the waist assembly can be locked and unlocked by pressing the button in the locking mechanism, thereby realizing the rapid installation and disassembly of the waist assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is a three-dimensional structural diagram of a treadmill according to an embodiment of the present invention;

[0043] Figure 2 for Figure 1 A three-dimensional schematic diagram of the middle traction device;

[0044] Figure 3 for Figure 2 A three-dimensional schematic diagram of the middle waist assembly;

[0045] Figure 4 is a schematic diagram of the local structure of the traction device at a certain viewing angle;

[0046] Figure 5 for Figure 4 Sectional view in the AA direction;

[0047] Figure 6is a schematic diagram of the local structure of the traction device at a certain viewing angle;

[0048] Figure 7 for Figure 6 Cross-sectional view in the BB direction;

[0049] Figure 8 for Figure 6 A schematic diagram showing a locking mechanism of the components in a locked state;

[0050] Fig. 9 for Figure 8 Cross-sectional view in CC direction;

[0051] Fig.10 for Figure 6 A schematic diagram of the locking mechanism of the illustrated component in an unlocked state;

[0052] Fig.11 for Fig.10 Cross-sectional view along the DD direction.

[0053] Among them, 1. treadmill body; 2. pull rod; 21. fixed cavity; 3. waist assembly; 31. fixed axis; 311. neck; 4. locking mechanism; 41. first locking plate; 42. second locking plate; 43. first button; 431. first operating part; 44. second button; 441. second operating part; 45. first elastic member; 46. second elastic member. DETAILED DESCRIPTION

[0054] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0055] The present embodiment provides a quick release assembly, which includes a first component and a second component. The first component is provided with a fixed shaft, and the second component is provided with a fixed cavity, in which the fixed shaft is inserted. The quick release assembly also includes a locking mechanism for locking the fixed shaft in the fixed cavity, and when the locking mechanism is in an unlocked state, the first component is detachably connected to the second component.

[0056] This embodiment also provides a traction device using the quick-release assembly. The traction device can be used as a component of a baby carriage (a treadmill as described below), in which case the first component can be a waist assembly and the second component can be a pull rod, so that the waist assembly can be quickly installed and removed.

[0057] This embodiment also provides a baby carriage, which includes a traction device using the above-mentioned quick-release assembly. The baby carriage in this embodiment is specifically as follows Figures 1 to 11 The running bike shown.

[0058] Reference Figures 1 to 11The treadmill comprises a treadmill body 1 and a traction device. The traction device comprises a pull rod 2 and a waist assembly 3. The pull rod 2 is connected to the treadmill body 1, and the waist assembly 3 is connected to the front end of the pull rod 2. A fixed shaft 31 is provided at the rear end of the waist assembly 3, and the fixed shaft 31 has a neck 311 with a smaller outer diameter. The front end of the pull rod 2 has a fixed cavity 21 for accommodating the fixed shaft 31, and a locking mechanism 4 for locking the fixed shaft 31 in the fixed cavity 21 is provided between the front end of the pull rod 2 and the rear end of the waist assembly 3, and the locking mechanism 4 has a locked state and an unlocked state. The locking mechanism 4 comprises two locking plates (a first locking plate 41 and a second locking plate 42), two buttons (a first button 43 and a second button 44), and two elastic members (a first elastic member 45 and a second elastic member 46). The first locking plate 41 is slidably provided at the front end of the pull rod 2 along a radial direction perpendicular to the axis of the fixed shaft 31. The second locking piece 42 is slidably disposed at the front end of the pull rod 2 along a radial direction perpendicular to the axis of the fixed shaft 31. The first locking piece 41 and the second locking piece 42 are respectively located on opposite sides of the neck 311 of the fixed shaft 31, and the first button 43 and the second button 44 are also respectively located on opposite sides of the neck 311 of the fixed shaft 31. The first locking piece 41 has a first end face in contact with the neck 311 and a second end face abutting and matching with the first button 43, and the first end face is an arc surface adapted to the neck 311. The second locking piece 42 has a third end face in contact with the neck 311 and a fourth end face abutting and matching with the second button 44, wherein the third end face is also an arc surface adapted to the neck 311. Optionally, the first locking piece 41 is L-shaped, and the surface area of ​​the first end face is greater than the surface area of ​​the second end face; the second locking piece 42 is also L-shaped, and the surface area of ​​the third end face is greater than the surface area of ​​the fourth end face. The first button 43 cooperates with and abuts against the first locking plate 41. The first button 43 has a first operating portion 431 exposed from the pull rod 2. The first operating portion 431 and the first locking plate 41 are respectively located on opposite sides of the fixed shaft 31. Specifically, the first end face and the second end face of the first locking plate 41 both face the first operating portion 431, and the second end face contacts the first operating portion 431. The second button 44 cooperates with and abuts against the second locking plate 42. The second button 44 has a second operating portion 441 exposed from the pull rod 2. The second operating portion 441 and the second locking plate 42 are respectively located on opposite sides of the fixed shaft 31. Specifically, the third end face and the fourth end face of the second locking plate 42 both face the second operating portion 441, and the fourth end face contacts the second operating portion 441. The first elastic member 45 is located between the first locking plate 41 and the second button 44. The first elastic member 45 has a tendency to make the first locking plate 41 tend to slide toward the neck 311. The second elastic member 46 is located between the second locking plate 42 and the first button 43 . The second elastic member 46 has a tendency to make the second locking plate 42 slide toward the neck 311 .Specifically, the first elastic member 45 is a compression spring, one end of the first elastic member 45 presses against the first locking plate 41, and the other end of the first elastic member 45 presses against the second button 44; the second elastic member 46 is also a compression spring, one end of the second elastic member 46 presses against the second locking plate 42, and the other end of the second elastic member 46 presses against the first button 43.

[0059] like Figures 4 to 9 , the locking mechanism 4 is in the locked state, and the locking mechanism 4 locks the fixed shaft 31 of the waist assembly 3 in the fixed cavity 21 of the pull rod 2. At this time, the first end face of the first locking plate 41 contacts the neck 311 of the fixed shaft 31, and the third end face of the second locking plate 42 also contacts the neck 311 of the fixed shaft 31; the second end face of the first locking plate 41 contacts the first operating part 431, and the fourth end face of the second locking plate 42 contacts the second operating part 441; the first locking plate 41 as a whole and the second locking plate 42 as a whole are respectively located on the opposite sides of the neck 311 of the fixed shaft 31. When the locking mechanism 4 is in the locked state, the first elastic member 45 and the second elastic member 46 are both in the initial state. Figure 10 to Figure 11 , the locking mechanism 4 changes from the locked state to the unlocked state, and the front end of the pull rod 2 is detachably connected to the rear end of the waist assembly 3. The specific process is: the first button 43 and the second button 44 are pressed simultaneously, the first locking piece 41 and the second locking piece 42 are pushed away from the fixed shaft 31, and the first elastic member 45 and the second elastic member 46 change from the initial state to the deformed state to provide a reset force for the first locking piece 41 and the second locking piece 42. When the locking mechanism 4 is in the unlocked state, the fixed shaft 31 can be disengaged from the fixed cavity 21.

[0060] The treadmill of this embodiment has the following advantages over the prior art: the waist assembly of the treadmill can be quickly disassembled and installed, so that the waist assembly can be quickly separated from the treadmill body, which is convenient for the user to quickly separate from the treadmill body.

[0061] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A treadmill, comprising a treadmill body, wherein the treadmill body is provided with wheels, wherein: The treadmill also includes a traction device, which includes a pull rod and a waist component for connecting to the waist of a user. The pull rod is connected to the treadmill body, and the waist component is connected to the front end of the pull rod to drive the treadmill forward by the power of the user's waist.

2. The treadmill according to claim 1, characterized in that: The waist component is detachably connected to the front end of the pull rod; a locking mechanism is provided between the front end of the pull rod and the waist component, and when the locking mechanism is in an unlocked state, the waist component is separated from the treadmill body.

3. The treadmill according to claim 2, characterized in that: The waist assembly is provided with a fixed shaft, the fixed shaft has a neck with a smaller outer diameter, and the front end of the pull rod is provided with a fixed cavity; When the locking mechanism is in a locked state, the fixed shaft is inserted into the fixed cavity and locked in the fixed cavity by the locking mechanism, and the waist assembly is connected to the pull rod; When the locking mechanism is in an unlocked state, the fixing shaft can be disengaged from the fixing cavity to enable the waist assembly to be disengaged from the treadmill body.

4. The treadmill according to claim 3, characterized in that: The locking mechanism comprises: A locking plate, the locking plate being slidably disposed on the pull rod along the radial direction of the fixed shaft; A button, the button is used to disengage the locking plate from the neck, the button having an operating portion exposed from the pull rod; An elastic member is located between the button and the pull rod, and has a tendency to make the locking plate slide toward the neck.

5. The treadmill according to claim 4, characterized in that: The locking mechanism includes two locking plates, two buttons and two elastic members. The first locking plate, the first button and the first elastic member cooperate with each other, and the second locking plate, the second button and the second elastic member cooperate with each other. The two locking plates are respectively located on opposite sides of the neck, and the two buttons are respectively located on opposite sides of the fixed axis.

6. The treadmill according to claim 5, characterized in that: The first elastic member is arranged between the first locking plate and the second button, and the second elastic member is arranged between the second locking plate and the first button.

7. The treadmill according to claim 6, characterized in that: The end surface of the locking piece in contact with the neck is an arc-shaped surface matched with the neck.

8. The treadmill according to claim 5 is characterized in that: The first locking piece has a first end face for contacting the neck and a second end face for abutting and cooperating with the first button, and the second locking piece has a third end face for contacting the neck and a fourth end face for abutting and cooperating with the second button.

9. The treadmill according to claim 8, characterized in that: The first button has a first operating portion that exposes the pull rod, the first end face and the second end face both face the first operating portion, and the second end face and the first operating portion are in abutment with each other; the second button has a second operating portion that exposes the pull rod, the third end face and the fourth end face both face the second operating portion, and the fourth end face and the second operating portion are in abutment with each other; the first operating portion and the second operating portion are located on opposite sides of the fixed axis.

10. The treadmill according to claim 7, characterized in that: The first locking piece and the second locking piece are L-shaped respectively.

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