Connecting structure for wheelchair

Abstract

The utility model discloses a connecting structure for a wheelchair, which relates to the technical field of wheelchairs, and adopts the technical scheme that the connecting structure comprises a connecting platform for connecting a chair body and a tire shaft for connecting wheels, a telescopic rod is jointly connected between the connecting platform and the tire shaft, a cross rod is further arranged between the connecting platform and the tire shaft, and the cross rod is connected with the connecting platform. The tire shafts are hinged to the lower ends of the cross rods. According to the wheel chair, the connecting piece is divided into a plurality of parts, and force buffering is carried out among the parts through the springs, so that the state of the tires can be changed through deformation of the springs when the wheel chair runs on a rugged road, the stability of the chair body is further kept, the comfort of the wheel chair is improved to a certain extent when the wheel chair is used, and the service life of the wheel chair is prolonged. In addition, the springs can absorb part of the gravity of the user, so that the wheelchair is soft, and the comfort is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wheelchairs, and more specifically, to a connecting structure for wheelchairs. Background Art

[0002] A wheelchair is a chair with wheels that can help replace walking. It is an important means of transportation for the injured, sick, and disabled to recover at home, be transported around, see a doctor, and go out for activities.

[0003] The wheelchairs currently on the market are mainly composed of two parts: a seat body and wheels. Electric wheelchairs will also be provided with a driving mechanism between the wheels and the seat body. Wheelchairs in the prior art are generally also provided with a frame to connect the seat body and wheels to the frame so as to realize the function of the wheels driving the seat body to move. This method makes the movement mode of the wheelchair more integrated, and the entire wheelchair will make corresponding state changes with the changes of the wheels. However, when the wheelchair travels on a more rugged road, the entire wheelchair will produce greater bumps along the road surface, which will cause greater discomfort to the user.

[0004] Therefore, a new method needs to be proposed to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a connecting structure for a wheelchair in order to solve the above-mentioned problem.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions: a connection structure for a wheelchair, including a connection platform for connecting a chair body and a tire shaft for connecting a wheel, a telescopic rod is commonly connected between the connection platform and the tire shaft, a cross rod is also arranged between the connection platform and the tire shaft, and the tire shaft is hinged to the lower end of the cross rod.

[0007] The utility model is further configured as follows: a first spring is sleeved on the telescopic rod.

[0008] The utility model is further configured as follows: a second spring is arranged between the tire axle and the cross rod.

[0009] The utility model is further configured as follows: the tire shaft comprises a connecting shaft and a mounting shaft, the connecting shaft is used for being hinged with the cross rod, and the mounting shaft is arranged perpendicular to the connecting shaft.

[0010] The utility model is further configured as follows: a sliding groove is arranged on the connecting shaft, and the installation shaft slides in the sliding groove.

[0011] The utility model is further configured as follows: a third spring for contacting with the installation shaft is arranged in the slide groove.

[0012] In summary, the utility model has the following beneficial effects:

[0013] By splitting the connecting parts into multiple parts and buffering the force between each part through springs, the state of the tire can be changed by the deformation of the spring when the wheelchair is traveling on rough roads, thereby keeping the chair body stable, thereby improving the comfort of the wheelchair when in use to a certain extent. The spring can also absorb part of the user's own gravity, so that the wheelchair itself can be made softer, further improving comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model.

[0015] Figure numerals: 1, connecting platform; 2, tire axle; 21, connecting axle; 211, slide groove; 212, third spring; 22, mounting axis; 3, telescopic rod; 4, first spring; 5, cross rod; 6, second spring. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] A connection structure for a wheelchair, such as Figure 1 As shown, it includes a connecting platform 1 for connecting the chair body and a tire shaft 2 for connecting the wheels. A telescopic rod 3 is commonly connected between the connecting platform 1 and the tire shaft 2. The telescopic rod 3 can utilize its own telescopic characteristics when in use, so that the distance from the tire shaft 2 to the connecting platform 1 can be adjusted, so that when the wheelchair is walking on a rough road, the state of the tire can be changed to adapt to the road surface, instead of the entire chair body bobbing up and down with the road surface, which reduces the bumpiness of the wheelchair on the rough road surface, thereby improving the comfort of the wheelchair to a certain extent. A first spring 4 is sleeved on the telescopic rod 3, and the spring can make the retracted telescopic rod 3 pop out again, so that the state of the telescopic rod 3 can be automatically restored, and at the same time, the state transition of the telescopic rod 3 can be smoother, further reducing the bumpiness, thereby making the wheelchair more comfortable.

[0018] A cross rod 5 is also arranged between the connecting platform 1 and the tire axle 2. The tire axle 2 is hinged to the lower end of the cross rod 5. A second spring 6 is arranged between the tire axle 2 and the cross rod 5. The cross rod 5 can further support the connecting platform 1, thereby improving the structural strength of the entire wheelchair to a certain extent. The spring on the cross rod 5 allows the cross rod 5 itself to further adjust the state of the tire by adjusting the crossing angle, thereby making the wheelchair more comfortable.

[0019] The tire shaft 2 includes a connecting shaft 21 and a mounting shaft 22. The connecting shaft 21 is used to be hinged with the cross rod 5. The mounting shaft 22 is arranged perpendicular to the connecting shaft 21. A slide groove 211 is arranged on the connecting shaft 21. The mounting shaft 22 slides in the slide groove 211. A third spring 212 for abutting against the mounting shaft 22 is arranged in the slide groove 211. This arrangement allows the tire itself to be adjusted to a certain extent along with the mounting shaft 22, thereby achieving more precise fine-tuning of the tire, so that the tire on some small pothole roads can also make corresponding changes to adapt to the road surface conditions, thereby reducing the bumpy feeling of the wheelchair when in use, thereby further enhancing its comfort.

[0020] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A connection structure for a wheelchair, comprising a connection platform (1) for connecting a chair body and a tire axle (2) for connecting a wheel, characterized in that: A telescopic rod (3) is commonly connected between the connection platform (1) and the tire axle (2), and a cross rod (5) is also arranged between the connection platform (1) and the tire axle (2), and the tire axle (2) and the cross rod (5) are hinged at their lower ends.

2. A connection structure for a wheelchair according to claim 1, characterized in that: The telescopic rod (3) is sleeved with a first spring (4).

3. A connection structure for a wheelchair according to claim 1, characterized in that: A second spring (6) is arranged between the tire axle (2) and the cross rod (5).

4. A connection structure for a wheelchair according to claim 1, characterized in that: The tire shaft (2) comprises a connecting shaft (21) and a mounting shaft (22); the connecting shaft (21) is used for being hinged to the cross rod (5); and the mounting shaft (22) is arranged perpendicular to the connecting shaft (21).

5. A connection structure for a wheelchair according to claim 4, characterized in that: The connecting shaft (21) is provided with a sliding groove (211), and the installation shaft (22) slides in the sliding groove (211).

6. A connection structure for a wheelchair according to claim 5, characterized in that: A third spring (212) for abutting against the installation shaft (22) is arranged in the sliding groove (211).

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