A medium-large low-floor three-wheeled pet vehicle

Abstract

The utility model relates to pet car technical field, specifically disclose a medium -sized low chassis three -wheel pet car, including base, the lower extreme of base is equipped with one forecarriage and two rear wheel frame, and the rear wheel frame is detachably connected with the base, and the upper extreme of base is equipped with handrail frame, and one side of handrail frame is equipped with front wall, and the other side of handrail frame is equipped with rear support rod, and the upper of front wall is equipped with sunshade frame, and one end of sunshade frame is hinged with the one end of front wall close to handrail frame, and the other end of sunshade frame is equipped with rotary press switch, and the other end of front wall is equipped with buckle structure. The engagement design of rotary press switch and buckle structure is simple and quick to operate, and one hand can complete fixing and unlocking, and it is unnecessary to have complicated steps, and compared with traditional single buckle fixing, it is stronger, and the hinged turnover structure makes sunshade frame not occupy extra space after being folded, and the detachable design of rear wheel frame can keep the whole vehicle simple, reduce logistics cost at the same time, and facilitate family storage.

Description

Technical Field

[0001] This utility model relates to the field of pet vehicle technology, and in particular to a medium-to-large low-chassis three-wheeled pet vehicle. Background Technology

[0002] As people's living standards improve, more and more urban residents are keeping pets. However, there are safety concerns when taking dogs or similar pets out on leashes across the street or in busy urban areas. Pets like cats are even less suitable for being leashed and require cages, which is inconvenient.

[0003] For example, patent application number CN202011250825.0 discloses a multifunctional pet stroller, which has a body, multiple wheels, and a pet bed. The pet bed is detachably connected to the body and is foldable. The rear end of the body is connected to a lever tube and a lever handle via a controllable lever pivot. The lever tube and lever handle can rotate around the controllable lever pivot and can be retracted into the bottom of the body. The body has a front-mounted light strip. The side of the body has drawers for storing pet supplies and tissues. The stroller can be retracted into the bottom of the body by rotating the lever pivot, and the roof is foldable to save space.

[0004] To prevent the curtain on the outside of the pet bed from coming undone, some pet strollers have buckles at the joint between the curtain and the frame to initially position the curtain. However, conventional buckle designs are prone to loosening due to vehicle vibration and bumps when dealing with rough roads, resulting in poor stability. In addition, some pet strollers enlarge and widen the rear wheels to make the vehicle more suitable for rough roads. This design further increases the space occupied when the vehicle is folded, affecting subsequent packaging and transportation, and needs to be optimized. Utility Model Content

[0005] To address the aforementioned problems, this utility model proposes a medium-to-large-sized low-chassis three-wheeled pet vehicle to overcome the shortcomings of existing models.

[0006] To achieve the purpose of this utility model, the utility model is implemented through the following technical solution: a medium-to-large low chassis three-wheeled pet vehicle, including a base, a front wheel frame and two rear wheel frames at the lower end of the base, the front wheel frame is rotatably connected to the base, and the rear wheel frames are detachably connected to the base;

[0007] The upper part of the base is equipped with a handrail frame, the lower end of the handrail frame is hinged to the base, one side of the handrail frame is equipped with a front enclosure, the front enclosure is hinged to the handrail frame, and the other side of the handrail frame is equipped with a rear support rod, the two ends of the rear support rod are hinged to the handrail frame and the base respectively.

[0008] A sunshade frame is provided above the front enclosure. The end of the sunshade frame near the handrail is hinged to the end of the front enclosure near the handrail. A rotary push-button switch is provided at the other end of the sunshade frame, and a buckle structure is provided at the other end of the front enclosure. The rotary push-button switch engages with the buckle structure.

[0009] A further improvement is that the buckle structure includes a lower buckle seat, which is fixedly connected to the front partition. A locking pin is provided on the side of the lower buckle seat away from the front partition. The locking pin is fixedly connected to the lower buckle seat, and an annular groove is provided on the outer side of the locking pin.

[0010] A further improvement is made in that: the rotary push switch includes a locking rotary seat and a locking upper seat. The locking upper seat is fixedly installed on the outside of the sunshade frame. One end of the locking rotary seat is hinged to the locking upper seat, and the other end of the locking rotary seat is provided with a locking quick release component. The locking quick release component is slidably connected to the inner side wall of the locking rotary seat. The locking rotary seat is provided with a rotary seat outer cover on the side near the locking lower seat. The rotary seat outer cover is engaged with the locking rotary seat. A through hole is opened on the rotary seat outer cover, and a valve hole is opened on the locking quick release component. A spring structure for pushing the locking quick release component outward is provided inside the locking rotary seat and the rotary seat outer cover.

[0011] A further improvement is that the spring structure includes a mounting block, which is fixedly installed on the side of the quick-release latch near the upper seat of the latch. A spring is sleeved on the outside of the mounting block, with one end of the spring overlapping the quick-release latch and the other end of the spring overlapping the inner wall of the latch rotating seat.

[0012] A further improvement is that a limiting groove is provided on the quick-release latch, and a positioning block is provided on the inner side of the latch rotating seat. One end of the positioning block is fixedly connected to the latch rotating seat, and the other end of the positioning block is inserted into the limiting groove and slidably connected to the limiting groove.

[0013] A further improvement is that: the outer cover of the rotating seat is provided with multiple elastic hooks on the side near the locking rotating seat, the elastic hooks are fixedly connected to the outer cover of the rotating seat, and the side of the elastic hook away from the outer cover of the rotating seat is provided with a hook-shaped protrusion, which engages with the hook groove opened on the outside of the locking rotating seat.

[0014] A further improvement is that the rear wheel frame includes a connecting shaft, with movable wheels at both ends of the connecting shaft. The movable wheels are fixedly connected to the connecting shaft, and caster brackets are fitted at both ends of the connecting shaft. An assembly groove is opened at the upper end of the caster bracket, which engages with the outer wall of the base. A fixing bolt is fitted on the outer side of the caster bracket, and the fixing bolt is screwed into the assembly groove and threadedly connected to the bolt hole opened on the outer side of the base.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] The rotating push-button switch and the snap-fit ​​design make operation simple and quick. It can be fixed and unlocked with one hand without complicated steps. Compared with the traditional single snap-fit, it is more secure. The hinged flip structure makes the sunshade rack take up no extra space when it is folded up. Combined with the detachable rear wheel rack design, it keeps the vehicle's overall appearance simple, reduces logistics costs, and is convenient for home storage. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a structural diagram of the handrail frame in this utility model.

[0019] Figure 2 This is a structural diagram of the base in this utility model.

[0020] Figure 3 This is a structural diagram of the rotary push-button switch and the snap-fit ​​structure in this utility model.

[0021] Figure 4 This is a structural diagram of the rotary push switch and the snap-fit ​​structure after disassembly in this utility model.

[0022] Figure 5 This is a structural diagram of the quick-release locking component in this utility model.

[0023] The components include: 1. Base; 2. Front wheel frame; 3. Rear wheel frame; 31. Connecting shaft; 32. Caster bracket; 33. Movable wheel; 34. Assembly slot; 4. Handrail frame; 5. Rotary push-button switch; 6. Front enclosure; 7. Sunshade frame; 8. Buckle structure; 9. Rear support rod; 10. Locking rotating seat; 11. Locking lower seat; 12. Rotating seat outer cover; 13. Locking quick release part; 14. Locking upper seat; 15. Through hole; 16. Elastic hook; 17. Positioning block; 18. Limiting groove; 19. Valve hole; 20. Mounting block; 21. Spring; 22. Locking pin; 23. Annular groove; 24. Hook groove. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0025] according to Figure 1 , 2 As shown in Figures 3, 4, and 5, this embodiment proposes a medium-to-large-sized low-chassis three-wheeled pet vehicle, including a base 1. The lower end of the base 1 is provided with a front wheel frame 2 and two rear wheel frames 3. The front wheel frame 2 is rotatably connected to the base 1, and the rear wheel frames 3 are detachably connected to the base 1.

[0026] The front wheel frame 2 is fixed to the front end of the base 1 to provide steering support. The two rear wheel frames 3 are detachably connected to the rear end of the base 1 to form a three-wheel support structure. During assembly, the rear wheel frames 3 are connected to the base 1 to facilitate vehicle movement. When transporting or storing, the rear wheel frames 3 can be detached to reduce the overall space occupied, lower logistics costs, and facilitate home storage.

[0027] The upper end of the base 1 is provided with a handrail frame 4, the lower end of the handrail frame 4 is hinged to the base 1, a front enclosure 6 is provided on one side of the handrail frame 4, the front enclosure 6 is hinged to the handrail frame 4, and a rear support rod 9 is provided on the other side of the handrail frame 4, with both ends of the rear support rod 9 being hinged to the handrail frame 4 and the base 1 respectively.

[0028] A sunshade frame 7 is provided above the front enclosure 6. The end of the sunshade frame 7 near the handrail frame 4 is hinged to the end of the front enclosure 6 near the handrail frame 4. A rotary push switch 5 is provided at the other end of the sunshade frame 7. A buckle structure 8 is provided at the other end of the front enclosure 6. The rotary push switch 5 engages with the buckle structure 8.

[0029] The sunshade frame 7 can be flipped up by hinge with the front enclosure 6. When sunshade and rain protection are needed, rotate the sunshade frame 7 to cover the base 1 and fix the position of the sunshade frame 7 by rotating and pressing the switch 5 and engaging the buckle structure 8. When not in use, release the engagement of the switch 5 and the buckle structure 8 and flip the sunshade frame 7 forward to fold it up, without affecting the pet's entry and exit or view.

[0030] The locking design of the rotary push switch 5 and the buckle structure 8 makes operation simple and quick. It can be fixed and unlocked with one hand without complicated steps. Compared with the traditional single buckle fixation, it is more secure. The hinged flip structure allows the sunshade frame 7 to be retracted without taking up extra space, keeping the vehicle's overall appearance simple.

[0031] Regarding the snap-fit ​​structure:

[0032] The buckle structure 8 includes a lower buckle seat 11, which is fixedly connected to the front baffle 6. A latch 22 is provided on the side of the lower buckle seat 11 away from the front baffle 6. The latch 22 is fixedly connected to the lower buckle seat 11. An annular groove 23 is provided on the outer side of the latch 22.

[0033] The buckle structure 8 is fixed to the front enclosure 6 by the locking seat 11 to form a fixed end; when the sunshade frame 7 is rotated to the closed position, the component of the rotating press switch 5 will be put into the locking pin 22 and will be positioned by engaging with the annular locking groove 23 to prevent the sunshade frame 7 from accidentally flipping over during use.

[0034] Regarding rotary push switch 5:

[0035] The rotary push switch 5 includes a locking rotating seat 10 and a locking upper seat 14. The locking upper seat 14 is fixedly installed on the outside of the sunshade frame 7. One end of the locking rotating seat 10 is hinged to the locking upper seat 14, and the other end of the locking rotating seat 10 is provided with a locking quick release part 13. The locking quick release part 13 is slidably connected to the inner side wall of the locking rotating seat 10. The side of the locking rotating seat 10 near the locking lower seat 11 is provided with a rotating seat outer cover 12. The rotating seat outer cover 12 is engaged with the locking rotating seat 10. A through hole 15 is opened on the rotating seat outer cover 12. A valve hole 19 is opened on the locking quick release part 13. The valve hole 19 is offset from the through hole 15. A spring structure for pushing the locking quick release part 13 outward is provided inside the locking rotating seat 10 and the rotating seat outer cover 12.

[0036] The upper locking seat 14 is fixed to the sunshade frame 7. After pulling down the sunshade frame 7, rotate the locking rotating seat 10 around the upper locking seat 14 so that the outer cover 12 of the rotating seat covers the locking pin 22. At this time, the spring structure pushes the locking quick release part 13 to slide outward. The inner side of the locking quick release part 13 is engaged in the annular groove 23 of the locking pin 22, thus completing the fixation. When unlocking, press the locking quick release part 13 to compress the spring structure, so that it is disengaged from the annular groove 23. Then, rotate the locking rotating seat 10 to open the sunshade frame 7.

[0037] Specifically, the spring structure includes a mounting block 20, which is fixedly installed on the side of the quick-release latch 13 near the upper latch seat 14. A spring 21 is sleeved on the outside of the mounting block 20. One end of the spring 21 overlaps with the quick-release latch 13, and the other end of the spring 21 overlaps with the inner wall of the latch rotating seat 10.

[0038] The mounting block 20 is fixed on the quick-release latch 13, providing mounting positioning for the spring 21. When the quick-release latch 13 is pressed, it slides into the latch rotating seat 10, compressing the spring 21 and causing it to deform. After the quick-release latch 13 is released, the spring 21 releases its elastic force, pushing the quick-release latch 13 to slide outward and reset, thus achieving automatic engagement with the locking pin 22.

[0039] To ensure that the quick-release latch 13 will not be pushed out of the latch rotating seat 10 by the spring structure and affect its use, a limiting groove 18 is provided on the quick-release latch 13. A positioning block 17 is provided on the inner side of the latch rotating seat 10. One end of the positioning block 17 is fixedly connected to the latch rotating seat 10, and the other end of the positioning block 17 is inserted into the limiting groove 18 and slidably connected to the limiting groove 18. The width of the limiting groove 18 is greater than the width of the positioning block 17. When the quick-release latch 13 is pressed, the positioning block 17 will slide up and down along the limiting groove 18 to limit the quick-release latch 13 and ensure that the quick-release latch 13 will not detach from the latch rotating seat 10.

[0040] In a preferred embodiment, the outer cover 12 of the rotating seat is provided with a plurality of elastic hooks 16 on the side near the locking rotating seat 10. The elastic hooks 16 are fixedly connected to the outer cover 12 of the rotating seat. The side of the elastic hooks 16 away from the outer cover 12 of the rotating seat is provided with a hook-shaped protrusion, which engages with the hook groove 24 opened on the outside of the locking rotating seat 10.

[0041] The snap-fit ​​design of the elastic hook 16 and the hook groove 24 allows for quick disassembly and assembly of the rotating seat outer cover 12 without the need for screws or other fasteners, facilitating the inspection and maintenance of internal components.

[0042] It is worth explaining in detail that the rear wheel frame 3 includes a connecting shaft 31, with movable wheels 33 at both ends of the connecting shaft 31. The movable wheels 33 are fixedly connected to the connecting shaft 31. Caster brackets 32 are sleeved on both ends of the connecting shaft 31. The upper end of the caster bracket 32 ​​is provided with an assembly groove 34. The assembly groove 34 is engaged with the outer wall of the base 1. A fixing bolt is installed on the outer side of the caster bracket 32. The fixing bolt is screwed into the assembly groove 34 and threadedly connected to the bolt hole opened on the outer side of the base 1.

[0043] During assembly, the mounting slot 34 of the caster bracket 32 ​​is engaged with the outer wall of the base 1, and the fixing bolt is screwed in to fix the caster bracket 32 ​​to the base 1, thus connecting the rear wheel frame 3 to the base 1; during disassembly, the fixing bolt is unscrewed to separate the caster bracket 32 ​​from the base 1, and the rear wheel frame 3 can be removed.

[0044] How this application works:

[0045] When assembling the pet stroller, first engage the caster bracket 32 ​​of the rear wheel frame 3 with the outer wall of the base 1 via the mounting groove 34, then screw in the fixing bolt to fix the caster bracket 32 ​​to the base 1, completing the assembly of the three-wheeled mobile structure; next, rotate the armrest frame 4 to a suitable angle, and achieve support and fixation through the hinges of the two ends of the rear support rod 9 with the armrest frame 4 and the base 1 respectively; then rotate the front panel 6 to a vertical position, then rotate the sunshade frame 7 to cover the top of the front panel 6, press the quick-release latch 13 to compress the spring 21, causing the latch rotating seat 10 to rotate around the latch upper seat 14, allowing the outer cover 12 of the rotating seat to rotate. The quick-release buckle 13 is released by loosening the quick-release buckle 22 on the outside of the lower seat 11 of the buckle. The spring 21 returns to its original position and pushes the quick-release buckle 13 so that its inner side engages with the annular groove 23 of the quick-release buckle 22. At the same time, the hook-shaped protrusion of the elastic hook 16 engages with the hook groove 24 of the buckle rotating seat 10, thus completing the fixation of the sunshade frame 7 and the front enclosure 6. When disassembly and transportation are required, press the quick-release buckle 13 to release the engagement with the quick-release buckle 22, open the sunshade frame 7, fold up the rear support rod 9 and lower the handrail frame 4, unscrew the fixing bolt to separate the rear wheel frame 3 from the base 1, reduce the overall volume and reduce packaging and transportation costs.

[0046] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0047] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A medium-to-large low-chassis three-wheeled pet vehicle, comprising a base (1), wherein a front wheel frame (2) and two rear wheel frames (3) are provided at the lower end of the base (1), the front wheel frame (2) being rotatably connected to the base (1), characterized in that: The rear wheel frame (3) is detachably connected to the base (1); The upper end of the base (1) is provided with a handrail (4), the lower end of the handrail (4) is hinged to the base (1), a front guard (6) is provided on one side of the handrail (4), the front guard (6) is hinged to the handrail (4), and a rear support rod (9) is provided on the other side of the handrail (4), the two ends of the rear support rod (9) are respectively hinged to the handrail (4) and the base (1); A sunshade frame (7) is provided above the front enclosure (6). The end of the sunshade frame (7) near the handrail frame (4) is hinged to the end of the front enclosure (6) near the handrail frame (4). A rotary push switch (5) is provided at the other end of the sunshade frame (7). A buckle structure (8) is provided at the other end of the front enclosure (6). The rotary push switch (5) engages with the buckle structure (8).

2. A medium-large low-floor three-wheeled pet vehicle according to claim 1, characterized in that: The buckle structure (8) includes a buckle base (11), which is fixedly connected to the front enclosure (6). A latch (22) is provided on the side of the buckle base (11) away from the front enclosure (6). The latch (22) is fixedly connected to the buckle base (11), and an annular groove (23) is provided on the outer side of the latch (22).

3. A medium-large low-floor three-wheeled pet vehicle according to claim 2, characterized in that: The rotary push switch (5) includes a locking rotary seat (10) and a locking upper seat (14); The upper locking seat (14) is fixedly installed on the outside of the sunshade frame (7). One end of the locking rotating seat (10) is hinged to the upper locking seat (14), and the other end of the locking rotating seat (10) is provided with a locking quick release part (13). The locking quick release part (13) is slidably connected to the inner side wall of the locking rotating seat (10). The locking rotating seat (10) is provided with a rotating seat cover (12) on the side near the locking lower seat (11). The rotating seat cover (12) engages with the locking rotating seat (10). A through hole (15) is provided on the rotating seat cover (12). A valve hole (19) is provided on the locking quick release part (13). A spring structure for pushing the locking quick release part (13) outward is provided inside the locking rotating seat (10) and the rotating seat cover (12).

4. A medium-large low-floor three-wheeled pet vehicle according to claim 3, characterized in that: The spring structure includes a mounting block (20), which is fixedly disposed on the side of the quick-release latch (13) near the upper latch seat (14). A spring (21) is sleeved on the outside of the mounting block (20). One end of the spring (21) overlaps with the quick-release latch (13), and the other end of the spring (21) overlaps with the inner wall of the latch rotating seat (10).

5. A medium-large low-floor three-wheeled pet vehicle according to claim 3, characterized in that: The quick-release latch (13) has a limiting groove (18), and the inner side of the latch rotating seat (10) is provided with a positioning block (17). One end of the positioning block (17) is fixedly connected to the latch rotating seat (10), and the other end of the positioning block (17) is inserted into the limiting groove (18) and slidably connected to the limiting groove (18).

6. A medium-large low-floor three-wheeled pet vehicle according to claim 3, characterized in that: The outer cover (12) of the rotating seat is provided with a plurality of elastic hooks (16) on the side near the locking rotating seat (10). The elastic hooks (16) are fixedly connected to the outer cover (12) of the rotating seat. The side of the elastic hooks (16) away from the outer cover (12) of the rotating seat is provided with hook-shaped protrusions. The hook-shaped protrusions engage with the hook grooves (24) opened on the outside of the locking rotating seat (10).

7. A medium-large low-floor three-wheeled pet vehicle according to claim 1, characterized in that: The rear wheel frame (3) includes a connecting shaft (31), and the left and right ends of the connecting shaft (31) are provided with movable wheels (33). The movable wheels (33) are fixedly connected to the connecting shaft (31). The two ends of the connecting shaft (31) are fitted with caster brackets (32). The upper end of the caster bracket (32) is provided with an assembly groove (34). The assembly groove (34) is engaged with the outer wall of the base (1). The outer side of the caster bracket (32) is fitted with a fixing bolt. The fixing bolt is screwed into the assembly groove (34) and threadedly connected to the bolt hole opened on the outer side of the base (1).

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