Integrated die-casting type wheelchair side frame

Abstract

The utility model relates to an integrated die-casting type wheelchair side frame which comprises a vertical section used for fixing a backrest, a first annular installation section used for installing a controller and a battery and a second annular installation section used for installing a motor, and the vertical section is arranged on one side of the first annular installation section and extends upwards. The second annular installation section is arranged at the bent position of the bottom of the first annular installation section and corresponds to the lower portion of the vertical section, and the vertical section, the first annular installation section and the second annular installation section are integrally formed in a die-casting mode. The utility model has the characteristics that the welding is not needed, the problems of welding difficulty, large welding deformation, welding position deviation and the like are effectively avoided, the normal proceeding of subsequent assembly procedures is ensured, the production efficiency is improved, and the like.

Description

Technical Field

[0001] The utility model relates to an integrated die-casting wheelchair side frame, belonging to the technical field of wheelchair side frames. Background Art

[0002] Wheelchairs are important tools for rehabilitation. They are not only a means of transportation for people with physical disabilities and mobility impairments, but more importantly, they can use wheelchairs to exercise and participate in social activities. As a special medical device, the function of wheelchairs is set to serve a specific group of people to meet their needs for transportation. With the advancement of technology and the improvement of living conditions, the functional requirements for wheelchairs are also increasing, which inevitably requires continuous improvement of its components to meet the ever-increasing needs of users. In order to improve comfort, today's wheelchair devices are becoming more and more complex. Not only are power facilities added to save manual labor, but the structural settings are also strengthened to make them as convenient to use and multifunctional as possible.

[0003] A Chinese patent application with publication number CN113317934A discloses a wheelchair side frame formed by bending metal profiles, wherein the wheelchair side frame is formed by bending at least one but no more than two metal profiles multiple times, and parallel arranged parts of the wheelchair side frame formed by bending at least one but no more than two metal profiles multiple times are connected by fasteners or butt welding.

[0004] In the above-mentioned prior art, the wheelchair side frame is formed by bending and welding metal profiles. In actual processing, other connectors that are auxiliary connected to components such as motors, armrests and brakes need to be welded to the wheelchair side frame. Due to their unique structure, some connectors will have problems such as welding difficulty, large welding deformation, and welding position deviation during actual welding, which will affect the normal progress of subsequent assembly processes and reduce production efficiency. Utility Model Content

[0005] The utility model aims to provide an integrated die-cast wheelchair side frame, which solves the problems of welding difficulty, large welding deformation, welding position deviation and the like existing in the prior art.

[0006] The above technical objectives of the utility model are mainly solved by the following technical solutions: an integrated die-cast wheelchair side frame, comprising a vertical section for fixing a backrest, a first annular mounting section for mounting a controller and a battery, and a second annular mounting section for mounting a motor, the vertical section is arranged at one side of the first annular mounting section and extends upward, the second annular mounting section is arranged at a bent portion of the bottom of the first annular mounting section corresponding to the bottom of the vertical section, and the vertical section, the first annular mounting section and the second annular mounting section are integrally die-cast;

[0007] The above-mentioned wheelchair side frame is formed by combining a vertical section, a first annular mounting section and a second annular mounting section, and the vertical section, the first annular mounting section and the second annular mounting section are die-cast as a whole, without the need for welding, effectively avoiding problems such as welding difficulties, large welding deformation and deviation in welding position, ensuring the normal progress of subsequent assembly processes and improving production efficiency.

[0008] Preferably, the radial cross-section of the vertical section, the first annular mounting section and the second annular mounting section is an integrally formed 8-shaped structure; the setting of the radial cross-section of the vertical section, the first annular mounting section and the second annular mounting section is an integrally formed 8-shaped structure can enhance the structural strength and reduce deformation.

[0009] Preferably, a first mounting portion for mounting an armrest and arranged in the thickness direction of the side frame is provided on the side wall of the vertical section, and a second mounting portion for mounting a backrest handgrip is provided at the top of the vertical section, and the first mounting portion and the second mounting portion are both integrally formed with the vertical section; the arrangement of the above-mentioned first mounting portion and the second mounting portion is so as to increase the functionality of the vertical section, and at the same time, the first mounting portion and the second mounting portion are both integrally formed with the vertical section, which can reduce material usage, reduce processing difficulty, and improve production efficiency.

[0010] Preferably, a third mounting portion for mounting a brake lever assembly is provided on the first annular mounting segment on a side which is in the same direction as the vertical segment and opposite to the first mounting portion, and two fourth mounting portions for mounting a folding frame are provided on the first annular mounting segment on a side which is close to the second annular mounting segment and in the same direction as the third mounting portion, and the third mounting portion and the fourth mounting portion are both integrally formed with the first annular mounting segment; the provision of the third mounting portion and the fourth mounting portion is so as to increase the functionality of the first annular mounting segment, and at the same time, the third mounting portion and the fourth mounting portion are both integrally formed with the first annular mounting segment, which can reduce material usage, reduce processing difficulty, and improve production efficiency.

[0011] Preferably, a fifth mounting portion for mounting the motor is provided at positions corresponding to the upper and lower sides on the inner ring side wall of the second annular mounting segment, and a sixth mounting portion for mounting the anti-roll wheel rod is provided on the outer side of the bottom of the second annular mounting segment, and the fifth mounting portion and the sixth mounting portion are both integrally formed with the second annular mounting segment; the provision of the fifth mounting portion and the sixth mounting portion is so as to increase the functionality of the second annular mounting segment, and at the same time, the fifth mounting portion and the sixth mounting portion are both integrally formed with the second annular mounting segment, which can reduce material consumption, reduce processing difficulty, and improve production efficiency.

[0012] Therefore, the utility model has the characteristics of not requiring welding, effectively avoiding the problems of welding difficulty, large welding deformation and welding position deviation, ensuring the normal progress of subsequent assembly processes, and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model.

[0014] Figure 2 yes Figure 1 Structural cross-section view. DETAILED DESCRIPTION

[0015] The technical solution of the utility model is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0016] like Figure 1-2 As shown, an integrated die-cast wheelchair side frame includes a vertical section 1 for fixing a backrest, a first annular mounting section 2 for installing a controller and a battery, and a second annular mounting section 3 for installing a motor. The vertical section 1 is arranged on one side of the first annular mounting section 2 and extends upward, the second annular mounting section 3 is arranged at the bottom bending part of the first annular mounting section 2 corresponding to the bottom of the vertical section 1, the vertical section 1, the first annular mounting section 2 and the second annular mounting section 3 are integrally die-cast, and the radial cross-section of the vertical section 1, the first annular mounting section 2 and the second annular mounting section 3 is an integrally formed 8-shaped structure.

[0017] The vertical section, the first annular mounting section and the second annular mounting section are all made of aluminum alloy material. The vertical section, the first annular mounting section and the second annular mounting section are interconnected to form a wheelchair side frame, which is formed by integral die casting to form an integrated structure. The radial cross-sections of the vertical section, the first annular mounting section and the second annular mounting section are all in an 8-shaped structure a, which is formed by integral die casting. The wheelchair side frame is made as a whole by a liquid die forging integrated molding process.

[0018] like Figure 1 As shown, a first mounting portion 11 for mounting an armrest and arranged in the thickness direction of the side frame is provided on the side wall of the vertical section 1, a second mounting portion 12 for mounting a backrest handgrip is provided at the top of the vertical section 1, and the first mounting portion 11 and the second mounting portion 12 are both integrally formed with the vertical section, a third mounting portion 21 for mounting a brake lever assembly is provided on the first annular mounting section 2 in the same direction as the vertical section 1 and in the opposite direction to the first mounting portion 11, two fourth mounting portions 22 for mounting a folding frame are provided on the first annular mounting section 2 on a side close to the second annular mounting section 3 and in the same direction as the third mounting portion 21, and the third mounting portion 21 and the fourth mounting portion 22 are both integrally formed with the first annular mounting section 2, fifth mounting portions 31 for mounting a motor are provided at positions corresponding to the upper and lower sides on the inner ring side wall of the second annular mounting section 3, a sixth mounting portion 32 for mounting an anti-roll wheel rod is provided on the outer side of the bottom of the second annular mounting section 3, and the fifth mounting portion 31 and the sixth mounting portion 32 are both integrally formed with the second annular mounting section 3.

[0019] The armrest is installed at the top of the above-mentioned vertical section through the first mounting part, and the side wall of the vertical section is also provided with a second mounting part for installing the backrest handgrip, the first mounting part and the second mounting part are integrally die-cast with the vertical section, and the corresponding positions on the above-mentioned first annular mounting section are provided with a third mounting part for installing the brake lever assembly and two fourth mounting parts for installing the folding frame, the third mounting part and the two fourth mounting parts are axially formed on the side opposite to the second mounting part of the bottom of the first annular mounting section, the inner ring side wall of the above-mentioned second annular mounting section is formed with a fifth mounting part located on the upper and lower sides respectively, for installing the motor, the above-mentioned sixth mounting part is used to install the anti-roll wheel rod, which is formed at the bending part of the bottom of the second annular mounting section and is coaxial with the bottom of the second annular mounting section, the first annular mounting section is on one side of the vertical section, and the sixth mounting part is on the other side opposite to the first annular mounting section.

Claims

1. An integrated die-cast wheelchair side frame, characterized in that: The invention comprises a vertical section (1) for fixing a backrest, a first annular mounting section (2) for mounting a controller and a battery, and a second annular mounting section (3) for mounting a motor, wherein the vertical section (1) is arranged on one side of the first annular mounting section (2) and extends upward, and the second annular mounting section (3) is arranged at a bent portion of the bottom of the first annular mounting section (2) corresponding to the bottom of the vertical section (1), and the vertical section (1), the first annular mounting section (2) and the second annular mounting section (3) are integrally die-cast.

2. The one-piece die-cast wheelchair side frame according to claim 1, characterized in that: The radial cross-sections of the vertical section (1), the first annular mounting section (2) and the second annular mounting section (3) are an integrally formed figure-8 structure (a).

3. The one-piece die-cast wheelchair side frame according to claim 1 or 2, characterized in that: A first mounting portion (11) for mounting an armrest and arranged in the thickness direction of the side frame is provided on the side wall of the vertical section (1), and a second mounting portion (12) for mounting a backrest handgrip is provided at the top end of the vertical section (1), wherein the first mounting portion (11) and the second mounting portion (12) are both integrally formed with the vertical section.

4. The one-piece die-cast wheelchair side frame according to claim 3, characterized in that: A third mounting portion (21) for mounting a brake lever assembly is provided on the first annular mounting section (2) on a side thereof which is in the same direction as the vertical section (1) and which is opposite to the first mounting portion (11); two fourth mounting portions (22) for mounting a folding frame are provided on the first annular mounting section (2) on a side thereof which is close to the second annular mounting section (3) and which is in the same direction as the third mounting portion (21); the third mounting portion (21) and the fourth mounting portion (22) are both integrally formed with the first annular mounting section (2).

5. The one-piece die-cast wheelchair side frame according to claim 1 or 2, characterized in that: A fifth mounting portion (31) for mounting a motor is provided at positions corresponding to the upper and lower sides of the inner ring side wall of the second annular mounting section (3), and a sixth mounting portion (32) for mounting an anti-roll wheel rod is provided on the outer side of the bottom of the second annular mounting section (3), and the fifth mounting portion (31) and the sixth mounting portion (32) are both integrally formed with the second annular mounting section (3).

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