Kart telescoping mechanism and kart

Abstract

The utility model provides a kart telescoping mechanism and a kart, the kart telescoping mechanism comprises a fixed tube, a telescoping tube and a locking assembly, the locking assembly comprises a fixed seat, a pin seat, a lock cylinder, a compression spring, an operation button and a button gland; the fixed seat is mounted on the fixed pipe, the fixed seat is provided with a pin seat mounting part, and the pin seat is mounted on the pin seat mounting part in a manner of moving up and down; the lock cylinder is axially and movably arranged on the pin seat in a penetrating manner, and the lock cylinder can be inserted and pulled out relative to the gear hole of the telescopic pipe; the operation key is used for driving the lock cylinder to move up and down relative to the fixed seat when the operation key moves transversely; one end of the compression spring abuts against the lock cylinder. The key gland is fixed to the fixing base and used for limiting the operation key to move inwards or outwards relative to the frame, and the other end of the compression spring abuts against the key gland. According to the kart telescopic mechanism, unlocking or locking can be completed by pressing the operation key, operation is convenient, and the use experience of a user can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of baby carriages, and in particular to a kart telescopic mechanism and a kart. Background Art

[0002] A go-kart is a miniature sports car that has quickly become popular around the world because of its easy-to-drive, safe and exciting features. The structure of existing children's go-karts is very simple, generally including a main shaft, a bracket arranged on the main shaft, a seat installed on the bracket, rear wheels installed at both ends of the main shaft, a connecting rod arranged on the front side of the bracket, and a front wheel and pedals arranged at the front end of the connecting rod. Traditional go-karts cannot be adjusted according to the user's leg length, which is neither convenient to use nor easy to carry.

[0003] The existing utility model patent with announcement number CN213620079U discloses a kart with telescopic function, which realizes the telescopic function through a first rod, a second rod and a locking device, so that the kart can be adjusted according to the leg length of the user to meet the use needs of users with different leg lengths. However, the telescopic function of the kart is not easy to operate, especially not conducive to children to operate, and the user experience is not good. Utility Model Content

[0004] The purpose of the utility model is to provide a kart telescopic mechanism which is easy to operate and improves the user experience, and a kart using the kart telescopic mechanism.

[0005] In order to achieve the above objectives, the utility model provides the following technical solutions:

[0006] The utility model provides a kart telescopic mechanism, comprising a fixed tube, a telescopic tube and a locking assembly, wherein the fixed tube is used to be installed on one of a front frame and a rear frame and is provided with a first locking hole, the telescopic tube is used to be installed on the other of the front frame and the rear frame and is inserted and pulled out of the fixed tube, the locking assembly is installed on the fixed tube and can be partially inserted into the gear hole of the telescopic tube, the locking assembly comprises a fixed seat, a pin seat, a lock core, a compression spring, an operating button and a button cover; one side of the fixed seat is provided with a tube holding groove for holding and installing on the fixed tube, the other side of the fixed seat is provided with a pin seat mounting part, the pin seat mounting part is provided with a lock core giving hole that passes through the tube holding groove corresponding to the first locking hole; the pin seat is installed on the pin seat mounting part and can move up and down along the pin seat mounting part, and the pin seat is provided with The lock core mounting hole runs through both ends; the lock core is installed in the lock core mounting hole of the pin seat in a way that one end of the lock core passes through the lock core mounting hole, and the lock core can move axially along the lock core mounting hole; the operation button is used to drive the lock core to move up and down relative to the fixed seat, and when the operation button is pressed toward the inner side of the vehicle frame, the lock core is pulled out of the gear hole, and when the operation button is pressed toward the outer side of the frame, the lock core is inserted into the gear hole; one end of the compression spring is placed in the lock core mounting hole and pressed against the lock core; the button pressing cover is used to fix the operation button and the fixed seat in the height direction, and the button pressing cover is provided with a button sliding groove along its length direction, and a spring fixing part is provided in the button sliding groove corresponding to the compression spring, the button pressing cover is connected to the fixed seat, the operation button is passed through the button sliding groove, and the other end of the compression spring is pressed against the spring fixing part.

[0007] In one embodiment, a lifting slope is provided at one end of the pin seat; a driving slope matching the lifting slope is provided on a side of the operating button facing the pin seat, and the driving slope and the lifting slope are matched with each other in an oblique sliding manner, so that: when the operating button is pressed inward, the driving slope drives the lifting slope to move downward, the pin seat and the lock core move downward and compress the compression spring, and the lock core is pulled out of the gear hole; when the operating button is pressed outward, the driving slope drives the lifting slope to move upward under the action of the compression spring, and the pin seat and the lock core move upward under the action of the compression spring.

[0008] In one embodiment, the pin seat is provided with a first positioning groove at one end of the lifting inclined surface, and the operating button is provided with a second positioning groove at one end of the driving inclined surface, and the first positioning groove and the second positioning groove are matched and connected with each other to realize the positioning of the pin seat and the operating button.

[0009] In one embodiment, the pin seat includes a pair of guide parts and a pair of lifting parts, and the line connecting the centers of the pair of guide parts is perpendicular to the line connecting the centers of the pair of lifting parts; the pin seat mounting part defines a pair of guide grooves, and the pair of guide parts are inserted into the pair of guide grooves and move up and down along the guide grooves; the lifting part is exposed from the side of the guide groove, and the lifting slope is arranged on the lifting part.

[0010] In one embodiment, the operation button is provided with a limiting column, the button cover is provided with a long limiting hole, the limiting hole extends along the length direction of the button sliding groove, and the limiting column is inserted into the limiting hole.

[0011] In one embodiment, the lock core includes an axially connected lock column and a step, the pin seat is provided with an axially connected lock core mounting hole and a lock core limiting hole, the hole diameter of the lock core limiting hole is larger than the outer diameter of the lock column and smaller than the outer diameter of the step, the lock core is installed in the lock core mounting hole, and the lock column passes through the lock core limiting hole.

[0012] In one embodiment, a conical surface is provided at one end of the locking post away from the step.

[0013] In one embodiment, a fixed tube plug is provided at the end of the fixed tube, the telescopic tube is inserted into the fixed tube plug, and the fixed tube plug is provided with a second locking hole corresponding to the lock core.

[0014] In one embodiment, a positioning notch is provided at the end of the fixed pipe, and a positioning block is provided at the fixed pipe plug corresponding to the positioning notch, and the positioning block is embedded in the positioning notch.

[0015] The utility model also relates to a kart, comprising a front frame, a rear frame and the kart telescopic mechanism, wherein the fixed pipe is connected to one of the front frame and the rear frame, and the telescopic pipe is connected to the other of the front frame and the rear frame.

[0016] The technical solution provided by the utility model has the following beneficial effects: the kart telescopic mechanism of the utility model is fixed to the fixed tube through the fixed seat by configuring the locking assembly to be a matching and connected fixing seat, a pin seat, a lock core, a compression spring, an operating button and a button cover, and the fixing seat is used to fix the fixing tube. The operating button is moved inwardly or outwardly relative to the frame to drive the lock core to be pulled out of or inserted into the gear hole of the telescopic tube, thereby achieving unlocking or locking, and can support the adjustment of the extension length of the telescopic tube relative to the fixed tube, thereby completing the telescopic function of the kart. The kart telescopic mechanism can be unlocked or locked by pressing the operating button, which is convenient to operate and can improve the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments of the present invention.

[0018] Figure 1 A schematic diagram of the structure of a kart telescopic mechanism provided by an embodiment of the utility model, showing the structure of the kart telescopic mechanism assembled with a frame;

[0019] Figure 2 An exploded view of a locking assembly provided in one embodiment of the utility model;

[0020] Figure 3 for Figure 1 A cross-sectional view of the telescopic mechanism of the go-kart shown;

[0021] Figure 4 for Figure 3 A magnified view of part A;

[0022] Figure 5 A schematic diagram of the structure of a fixing base provided in one embodiment of the utility model;

[0023] Figure 6 A schematic diagram of the structure of a pin seat provided in one embodiment of the utility model;

[0024] Figure 7 for Figure 6 A structural schematic diagram of the pin holder from another perspective;

[0025] Figure 8 A schematic diagram of the structure of a lock core provided in one embodiment of the utility model;

[0026] Fig. 9 A schematic diagram of the structure of an operation button provided by an embodiment of the utility model;

[0027] Fig.10 A schematic diagram of the structure of a key cover provided by an embodiment of the utility model;

[0028] Fig.11 A schematic diagram of the structure of the front frame portion provided in one embodiment of the utility model;

[0029] Fig.12 A schematic diagram of a locked state of a kart telescopic mechanism provided by an embodiment of the utility model;

[0030] Fig.13 A schematic diagram of the unlocked state of a kart telescopic mechanism provided by an embodiment of the utility model;

[0031] Fig.14 The present invention is a schematic structural diagram of a go-kart provided in one embodiment of the present invention. DETAILED DESCRIPTION

[0032] The embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as being limited to the embodiments described herein. Instead, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the drawings and embodiments of the present invention are only for exemplary purposes and are not intended to limit the scope of protection of the present invention.

[0033] It should be understood that the various steps described in the method implementation of the present utility model can be performed in different orders and / or performed in parallel. In addition, the method implementation may include additional steps and / or omit the steps shown. The scope of the present utility model is not limited in this respect.

[0034] The term "including" and its variations used herein are open inclusions, i.e., "including but not limited to". The term "connected" may be directly connected or indirectly connected through intermediate components (elements). The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one other embodiment"; the term "some embodiments" means "at least some embodiments". The relevant definitions of other terms will be given in the following description.

[0035] It should be noted that the concepts such as "first" and "second" mentioned in the present invention are only used to distinguish between devices, modules or units, and are not used to limit these devices, modules or units to be different devices, modules or units, nor are they used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0036] See also Figures 1 to 13 The utility model relates to a kart telescopic mechanism 100, which is used to achieve relative telescopic movement between the front frame 200 and the rear frame 300 of the kart, thereby adjusting the length of the kart body to meet the needs of drivers with different leg lengths and improve the user experience. Fig.14 The utility model also provides a go-kart using the go-kart telescopic mechanism.

[0037] Generally, the front and rear frames of a kart are telescopically connected by pipes, that is, the kart includes a front frame 200, a rear frame 300, a fixed tube 120 and a telescopic tube 130, wherein the fixed tube 120 is installed on one of the frames, and the telescopic tube 130 is installed on the other frame, and is pluggable and sleeved in the fixed tube 120. In this embodiment, the fixed tube 120 is installed on the front frame 200, and the telescopic tube 130 is installed on the rear frame 300. It can be understood that the front frame 200 and the rear frame 300 are connected by two groups of telescopic tubes 130 (each group of telescopic tubes 130 includes a fixed tube 120 and a telescopic tube 130) to improve the structural strength of the vehicle body. For the convenience of description, the side away from the two groups of telescopic tubes 130 is defined as the outer side of the frame, and the side between the two groups of telescopic tubes 130 is defined as the inner side of the frame.

[0038] The fixing tube 120 is provided with a first locking hole (not shown, the same below), and the end of the telescopic tube 130 away from the rear frame 300 is provided with a plurality of gear holes 131 distributed along its axial direction, and the plurality of gear holes 131 can be selectively aligned with the first locking hole after being adjusted by plugging and unplugging.

[0039] Optionally, a fixed pipe plug 140 is provided between the fixed pipe 120 and the telescopic pipe 130. The fixed pipe plug 140 is installed at one end of the fixed pipe 120 away from the front frame 200. The fixed pipe plug 140 has a second locking hole (not marked, the same below). By arranging the fixed pipe plug 140 between the telescopic pipe 130 and the fixed pipe 120, the coaxial arrangement of the two pipes is ensured, thereby improving the stability of the connection between the two pipes.

[0040] In one embodiment, a positioning notch 121 is provided at the end of the fixed tube 120, and a positioning block 141 is provided at the fixed tube plug 140. When the fixed tube plug 140 is assembled with the fixed tube 120, the positioning block 141 is embedded in the positioning notch 121. The second locking hole and the first locking hole can be quickly aligned through the positioning notch 121 and the positioning block 141, thereby facilitating the assembly of the fixed tube plug 140 with the fixed tube 120.

[0041] In addition, the fixed pipe plug 140 is fixed to the fixed pipe 120 via the clamp 150 to improve the stability of the connection between the two.

[0042] The fixed tube 120 is provided with a locking assembly 110, which has a lock core 3. The lock core 3 can pass through the first locking hole and the second locking hole and be inserted into the gear hole 131 of the telescopic tube 130 to achieve locking between the telescopic tube 130 and the fixed tube 120. The lock core 3 can also be driven to be pulled out from the gear hole 131 to achieve an unlocking function, so that the telescopic tube 130 can be plugged in and out relative to the fixed tube 120, so that a certain gear hole 131 can be aligned with the first locking hole to achieve length adjustment of the telescopic tube. After the gear hole 131 is adjusted, it is inserted into the gear hole 131 again to be locked again.

[0043] In one embodiment, the locking assembly 110 includes a fixing seat 1, a pin seat 2, a lock core 3, a compression spring 4, an operating button 5 and a button cover 6. The fixing seat 1 is provided with a tube holding groove 11 on one side for holding and installing on the fixing tube 120, and a pin seat mounting portion 12 is provided on the other side of the fixing seat 1. The pin seat mounting portion 12 is provided with a lock core 3 clearance hole 13 that passes through the tube holding groove 11 corresponding to the first through-lock hole. The pin seat 2 is installed on the pin seat mounting portion 12 and can move up and down along the pin seat mounting portion 12. The pin seat 2 is provided with a lock core mounting hole 21 that passes through both ends. The lock core 3 is installed in the lock core mounting hole 21 of the pin seat 2 in a manner that one end thereof passes through the lock core mounting hole 21, and the lock core 3 can move axially along the lock core mounting hole 21. The operation button 5 is used to drive the lock core 3 to move up and down relative to the fixed seat 1. When the operation button 5 is pressed toward the inner side of the vehicle frame, the lock core 3 is pulled out of the gear hole 131. When the operation button 5 is pressed toward the outer side of the vehicle frame, the lock core 3 is inserted into the gear hole 131. One end of the compression spring 4 is placed in the lock core mounting hole 21 and pressed against the lock core 3. The button cover 6 is used to fix the operation button 5 and the fixed seat 1 in the height direction. The button cover 6 is provided with a button sliding groove 61 along its length direction. A spring fixing part 62 is provided in the button sliding groove 61 corresponding to the compression spring 4. The button cover 6 is connected to the fixed seat 1. The operation button 5 is inserted into the button sliding groove 61. The other end of the compression spring 4 is pressed against the spring fixing part 62.

[0044] The locking assembly 110 is configured to be a matching fixed seat 1, a pin seat 2, a lock core 3, a compression spring 4, an operating button 5 and a button cover 6, which are fixed to the fixed tube 120 through the fixed seat 1, and the operating button 5 is moved inward or outward relative to the frame to drive the lock core 3 to be pulled out of or inserted into the gear hole 131 of the telescopic tube 130, thereby achieving unlocking or locking, and can support the adjustment of the extension length of the telescopic tube 130 relative to the fixed tube 120, thereby completing the telescopic function of the kart. The telescopic mechanism of the kart can be unlocked or locked by pressing the operating button 5, which is convenient to operate and can improve the user experience.

[0045] In one embodiment, a lifting slope 22 is provided at one end of the pin seat 2, and a driving slope 51 matching the lifting slope 22 is provided on a side of the operation button 5 facing the pin seat 2. The driving slope 51 and the lifting slope 22 are matched with each other in an oblique sliding manner, so that: when the operation button 5 is pressed inward, the driving slope 51 drives the lifting slope 22 to move downward, the pin seat 2 and the lock core 3 move downward and compress the compression spring 4, and the lock core 3 is pulled out of the gear hole 131; when the operation button 5 is pressed outward, the driving slope 51 drives the lifting slope 22 to move upward under the action of the compression spring 4, and the pin seat 2 and the lock core 3 move upward under the action of the compression spring 4.

[0046] In one embodiment, the pin seat 2 is provided with a first positioning groove 23 at one end of the lifting inclined surface 22, and the operation button 5 is provided with a second positioning groove 52 at one end of the driving inclined surface 51, and the first positioning groove 23 and the second positioning groove 52 are matched and connected with each other to realize the positioning of the pin seat 2 and the operation button 5.

[0047] In one embodiment, the pin seat 2 includes a pair of guide portions 24 and a pair of lifting portions, and the line connecting the centers of the pair of guide portions 24 is perpendicular to the line connecting the centers of the pair of lifting portions; the pin seat mounting portion 12 defines a pair of guide grooves 121, and the pair of guide portions 24 are inserted into the pair of guide grooves 121 and move up and down along the guide grooves 121; the lifting portion is exposed from the side of the guide groove 121, and the lifting slope 22 is arranged on the lifting portion.

[0048] In one embodiment, the operation button 5 is provided with a limiting column 53, and the button cover 6 is provided with a long limiting hole 63, the limiting hole 63 extends along the length direction of the button sliding groove 61, and the limiting column 53 is inserted into the limiting hole 63 to realize the limiting of the inward or outward movement of the operation button 5.

[0049] In one embodiment, the lock core 3 includes a lock column 31 and a step 32 connected axially, the pin seat 2 is provided with a lock core limiting hole axially connected to the lock core mounting hole 21, the hole diameter of the lock core limiting hole is larger than the outer diameter of the lock column 31 and smaller than the outer diameter of the step 32, the lock core 3 is installed in the lock core mounting hole 21, and the lock column 31 passes through the lock core limiting hole. The end of the lock column 31 away from the step 32 is provided with a conical surface to facilitate the insertion of the lock core 3 into the gear hole 131.

[0050] The utility model also relates to a kart, comprising a front frame 200, a rear frame 300 and the telescopic mechanism of the kart, wherein the fixed tube 120 is connected to one of the front frame 200 and the rear frame 300, and the telescopic tube 130 is connected to the other of the front frame 200 and the rear frame 300.

[0051] The above description is only a preferred embodiment of the utility model and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the utility model involved in the utility model is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the concept of the above utility model. For example, the above features are replaced with the technical features of the utility model (but not limited to) with similar functions in the utility model of the utility model to form a technical solution.

[0052] Although the subject matter has been described in language specific to structural features and / or methodological logical actions, it should be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or actions described above. On the contrary, the specific features and actions described above are merely example forms of implementing the claims.

Claims

1. A kart telescopic mechanism, comprising a fixed tube, a telescopic tube and a locking assembly, wherein the fixed tube is used to be installed on one of a front frame and a rear frame and is provided with a first locking hole, the telescopic tube is used to be installed on the other of the front frame and the rear frame and is inserted and pulled out of the fixed tube, the locking assembly is installed and connected to the fixed tube and can be partially inserted into the gear hole of the telescopic tube, characterized in that: The locking assembly includes a fixing seat, a pin seat, a lock core, a compression spring, an operating button and a button cover; The fixing seat is provided with a pipe holding groove on one side for holding and installing on the fixing pipe, and a pin seat installation part is provided on the other side of the fixing seat, and the pin seat installation part is provided with a lock core clearance hole corresponding to the first locking hole and penetrating to the pipe holding groove; The pin seat is installed on the pin seat installation part and can move up and down along the pin seat installation part. The pin seat is provided with a lock core installation hole penetrating through both ends. The lock core is installed in the lock core installation hole of the pin seat in a manner that one end of the lock core passes through the lock core installation hole, and the lock core can move axially along the lock core installation hole; The operating button is used to drive the lock core to move up and down relative to the fixing seat. When the operating button is pressed toward the inner side of the frame, the lock core is pulled out of the gear hole, and when the operating button is pressed toward the outer side of the frame, the lock core is inserted into the gear hole; One end of the compression spring is placed in the lock core mounting hole and pressed against the lock core; The key cover is used to fix the operation key and the fixed seat in the height direction. The key cover is provided with a key sliding groove along its length direction. A spring fixing part is provided in the key sliding groove corresponding to the compression spring. The key cover is connected to the fixed seat, the operation key is inserted into the key sliding groove, and the other end of the compression spring is pressed against the spring fixing part.

2. The kart telescopic mechanism according to claim 1, characterized in that: One end of the pin seat is provided with a lifting inclined surface; The operating button is provided with a driving inclined surface matched with the lifting inclined surface on one side facing the pin seat, and the driving inclined surface and the lifting inclined surface are matched with each other in an oblique sliding manner, so that: When the operating button is pressed inward, the driving inclined surface drives the lifting inclined surface to move downward, the pin seat and the lock core move downward and compress the compression spring, and the lock core is pulled out of the gear hole; when the operating button is pressed outward, the driving inclined surface drives the lifting inclined surface to move upward under the action of the compression spring, and the pin seat and the lock core move upward under the action of the compression spring.

3. The kart telescopic mechanism according to claim 2, characterized in that: The pin seat is provided with a first positioning groove at one end of the lifting inclined surface, and the operation button is provided with a second positioning groove at one end of the driving inclined surface. The first positioning groove and the second positioning groove are matched and connected with each other to realize the positioning of the pin seat and the operation button.

4. The kart telescopic mechanism according to claim 2, characterized in that: The pin seat includes a pair of guide parts and a pair of lifting parts, and the line connecting the centers of the pair of guide parts is perpendicular to the line connecting the centers of the pair of lifting parts; the pin seat mounting part defines a pair of guide grooves, and the pair of guide parts are inserted into the pair of guide grooves and move up and down along the guide grooves; the lifting part is exposed from the side of the guide groove, and the lifting slope is arranged on the lifting part.

5. The kart telescopic mechanism according to claim 1, characterized in that: The operation button is provided with a limiting column, and the button cover is provided with a long limiting hole, the limiting hole extends along the length direction of the button sliding groove, and the limiting column is inserted into the limiting hole.

6. The kart telescopic mechanism according to claim 1, characterized in that: The lock core includes an axially connected lock column and a step. The pin seat is also provided with a lock core limiting hole axially connected to the lock core mounting hole. The hole diameter of the lock core limiting hole is larger than the outer diameter of the lock column and smaller than the outer diameter of the step. The lock core is installed in the lock core mounting hole, and the lock column passes through the lock core limiting hole.

7. The kart telescopic mechanism according to claim 6, characterized in that: A conical surface is provided at one end of the locking column away from the step.

8. The kart telescopic mechanism according to claim 1, characterized in that: A fixed pipe plug is provided at the end of the fixed pipe, the telescopic pipe is inserted into the fixed pipe plug, and the fixed pipe plug is provided with a second locking hole corresponding to the lock core.

9. The kart telescopic mechanism according to claim 8, characterized in that: The end of the fixed pipe is provided with a positioning notch, and the fixed pipe plug is provided with a positioning block corresponding to the positioning notch, and the positioning block is embedded in the positioning notch.

10. A go-kart, characterized in that: The invention comprises a front frame, a rear frame and a kart telescopic mechanism as claimed in any one of claims 1 to 9, wherein the fixed tube is connected to one of the front frame and the rear frame, and the telescopic tube is connected to the other of the front frame and the rear frame.

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