Automatic overturning protection device for wheelchair storage

Abstract

The invention discloses an automatic overturning protection device for wheelchair storage, and relates to the technical field of wheelchair storage. The wheelchair storage device comprises two side guardrails fixedly connected to the interior of a storage frame of a wheelchair storage device body and a rear guardrail fixedly connected between the two side guardrails. A front protective plate is rotationally connected between the two side guardrails; wherein the outer portion of one side guardrail is fixedly connected with an upper installation column, one side of the front protection plate is fixedly connected with a lower installation column, an electric telescopic rod is installed outside the upper installation column, and an automatic circuit breaker is installed outside the lower installation column. The wheelchair storage space is formed by the side guardrails and the rear guardrails, opening and closing of the storage space can be achieved in cooperation with the rotatable front protection plate, a wheelchair can be conveniently pushed in and stored, complete protection can be formed after closing, and meanwhile the wheelchair storage space can be conveniently opened and closed through cooperation of an automatic circuit breaker and an electric telescopic rod. Power can be cut off in time when the electric telescopic rod drives the front protection plate to be closed and encounters overload pressure, and the use safety of the device is improved.

Description

Technical Field

[0001] This invention belongs to the field of wheelchair storage technology, and in particular relates to an automatic flip-over protective device for wheelchair storage. Background Technology

[0002] Wheelchair storage devices are specialized equipment designed for the organized storage of wheelchairs. They are widely used in hospitals, nursing homes, homes, and public service venues. Through a rational structural design, they enable the orderly storage of wheelchairs, reducing the space occupied during storage and preventing damage such as collisions and wear caused by careless placement, while facilitating subsequent retrieval.

[0003] For example, Chinese patent application CN119503281A discloses a wheelchair storage device, including a wall-mounting frame, a swing connecting frame, and a storage rack for storing a wheelchair. The wall-mounting frame is equipped with a traction device for controlling the swinging movement of the swing connecting frame. The storage rack is connected to the swing connecting frame to move in accordance with the swinging movement of the swing connecting frame, resulting in changes in height. The storage rack includes a base frame for supporting the wheelchair and booms on both sides of the base frame. The swing connecting frame includes a cantilever for suspending the storage rack and a connecting arm hinged to the wall-mounting frame. One end of the cantilever is connected to the connecting arm, and the other end is hinged to the boom, so that when the connecting arm is driven by the traction device to swing, the base frame remains horizontal. Using this invention, wheelchair storage is convenient, easy to access, and does not occupy floor space.

[0004] However, the aforementioned existing technical solutions mainly focus on achieving height adjustment and space saving of the storage rack through a swing connecting frame, but neglect the protection needs during wheelchair storage. The storage rack relies solely on the base frame and side arms to support the wheelchair, lacking a complete protective structure. Especially when the storage rack is moved at a height or in a suspended storage state, the wheelchair is prone to slipping off the storage rack due to external collisions, device shaking, or its own center of gravity shift. This can not only damage the wheelchair but also potentially injure nearby people, posing a safety hazard. In addition, for some scenarios that require automatic storage, the solution does not include corresponding protective opening and closing mechanisms, and the convenience and safety of pushing and taking out the wheelchair need to be improved.

[0005] To address these issues, we provide an automatic tilting and protective device for wheelchair storage. Summary of the Invention

[0006] The purpose of this invention is to provide an automatic flip-over protective device for wheelchair storage. It forms an openable and closable protective storage space through side guardrails, rear guardrails and a rotatable front guard plate. The front guard plate is opened and closed automatically with the help of an electric telescopic rod. At the same time, the automatic circuit breaker and the electric telescopic rod are linked to realize overload power-off protection. This solves the problem that existing wheelchair storage protective devices lack protective devices and wheelchairs are prone to accidental falling.

[0007] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: This invention relates to an automatic tilting and protective device for wheelchair storage, comprising two side rails fixedly connected to the inside of a storage rack of the main body of the wheelchair storage device, and a rear rail fixedly connected between the two side rails; a front guard plate is rotatably connected between the two side rails. One of the side rails is fixedly connected to an upper mounting post, and one side of the front guard plate is fixedly connected to a lower mounting post. An electric telescopic rod for opening and closing the front guard plate is installed on the outside of the upper mounting post, and an automatic circuit breaker for preventing the front guard plate from being overloaded or crushed is installed on the outside of the lower mounting post. The automatic circuit breaker is installed at the output end of the electric telescopic rod. A control component is provided on the outer side of one of the side rails.

[0008] The present invention is further configured such that connecting angle irons are fixedly connected to the lower left corners of the outer sides of the two side guardrails, and rotating shafts are fixedly connected to both sides of the front guard plate, with the rotating shafts rotatably connected to the corresponding connecting angle irons.

[0009] The invention is further configured such that the automatic circuit breaker includes an outer shell, a connecting ring rotatably connected to the bottom of the outer shell and mounted on the outside of the lower mounting post, a top cover fixedly connected to the top of the outer shell, a conductive pull rod movably sleeved inside the top cover, a metal stop fixedly sleeved outside the conductive pull rod and fitting against the inner wall of the outer shell, an insulating connecting block fixedly connected to the top of the conductive pull rod and fixedly connected to the output end of the electric telescopic rod, an upper contact piece fixedly connected outside the conductive pull rod, an installation opening on the side of the outer shell, a contact spring for communicating with the metal stop fixedly connected to the side of the outer shell and located inside the installation opening, an upper spring and a lower spring respectively located at the upper and lower ends of the metal stop fixedly sleeved outside the conductive pull rod, and a protective shell covering the installation opening and the contact spring fixedly connected outside the outer shell.

[0010] The present invention is further configured such that electromagnetic pins are fixedly connected to the outer sides of both side guardrails, and buckles are fixedly connected to both sides of the front guard plate, and the buckles are adapted to the electromagnetic pins.

[0011] The invention is further configured such that a first push switch for activating an electromagnetic latch is fixedly connected to the outer side of one of the side guardrails, and a push plate for pressing the first push switch is fixedly connected to one side of the front guard plate.

[0012] The invention is further configured such that a bottom mounting post is fixedly connected to the bottom of the storage frame of the main body of the wheelchair storage device, and a second push switch is fixedly connected to the bottom of the bottom mounting post for retracting the electromagnetic pin and extending the output end of the electric telescopic rod.

[0013] The invention is further configured such that the control component includes a mounting plate fixedly connected to the outside of one of the side guardrails, and a controller is mounted on the outside of the mounting plate.

[0014] The invention is further configured such that an alarm is installed on the outside of the mounting plate to sound an alarm when the front guard plate is overloaded or crushed by an object, and a reset switch is installed to reset and close the front guard plate.

[0015] The present invention has the following beneficial effects: 1. This invention provides lateral and rear protection for the wheelchair storage space through side and rear guardrails. Combined with a rotatable front guardrail, the storage space can be opened and closed, making it easy to push the wheelchair in for storage and providing complete protection when closed, preventing the wheelchair from sliding off the side or front and rear when stored.

[0016] 2. This invention, through the cooperation of an automatic circuit breaker and an electric telescopic rod, can promptly cut off the power when the electric telescopic rod drives the front guard plate to close under overload pressure, thereby preventing damage to the front guard plate and the electric telescopic rod, and preventing injury to personnel or damage to crushed objects, thus improving the safety of the device. Attached Figure Description

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

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 This is a schematic diagram of the front guard plate of the present invention in the open state.

[0020] Figure 3 This is a cross-sectional view of the automatic circuit breaker of the present invention.

[0021] Figure 4 This is an exploded structural diagram of the automatic circuit breaker of the present invention.

[0022] Figure 5 for Figure 1 A magnified structural diagram of point A in the middle.

[0023] Figure 6 for Figure 1 A magnified structural diagram at point B in the middle.

[0024] Figure 7 for Figure 2 A magnified structural diagram at point C.

[0025] Figure 8 for Figure 2 A magnified structural diagram at point D.

[0026] The attached diagram lists the components represented by each number as follows: 100. Wheelchair storage unit main body; 200. Side guardrail; 201. Upper mounting post; 202. Connecting angle iron; 300. Rear guardrail; 400. Front guard plate; 401. Rotating shaft; 402. Lower mounting post; 500. Electric telescopic rod; 600. Automatic circuit breaker; 601. Outer casing; 602. Conductive pull rod; 603. Metal stop block; 604. Top cover; 605. Insulating connecting block; 606. Upper spring; 607. Lower... Spring; 608, Upper connecting piece; 609, Connecting spring; 610, Connecting ring; 611, Protective housing; 612, Mounting port; 700, Control component; 701, Mounting plate; 702, Controller; 703, Reset switch; 800, Electromagnetic pin; 900, Snap-fit; 1100, First push-button switch; 1200, Press plate; 1300, Bottom mounting post; 1400, Second push-button switch; 1500, Alarm. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Example 1 Please see Figures 1 to 8The present invention is an automatic flip-over protective device for wheelchair storage, comprising two side guardrails 200 fixedly connected to the inside of the storage rack of the main body 100 of the wheelchair storage device, and a rear guardrail 300 fixedly connected between the two side guardrails 200; a front guard plate 400 is rotatably connected between the two side guardrails 200, and the side guardrails 200 and the rear guardrail 300 form lateral and rear protection for the storage space. With the rotatable front guard plate 400, the storage space can be opened and closed, which is convenient for the wheelchair to be pushed in for storage, and can form complete protection after closing to prevent the wheelchair from sliding off the side or front and rear sides when stored. One of the side railings 200 is externally fixedly connected to an upper mounting post 201, and one side of the front guard plate 400 is fixedly connected to a lower mounting post 402. An electric telescopic rod 500 for opening and closing the front guard plate 400 is installed on the outside of the upper mounting post 201, and an automatic circuit breaker 600 for preventing the front guard plate 400 from being overloaded or crushed by objects is installed on the outside of the lower mounting post 402. The automatic circuit breaker 600 is installed at the output end of the electric telescopic rod 500. When the electric telescopic rod 500 drives the front guard plate 400 to close, if an overload pressure is encountered, the automatic circuit breaker 600 can cut off the power in time to prevent damage to the front guard plate 400 and the electric telescopic rod 500, and at the same time prevent injury to personnel or damage to crushed objects, thereby improving the safety of the device. A control component 700 is provided on the outside of one of the side rails 200.

[0029] Specifically, electromagnetic pins 800 are fixedly connected to the outer sides of both side guardrails 200, and buckles 900 are fixedly connected to both sides of the front guard plate 400. The buckles 900 are compatible with the electromagnetic pins 800. The compatibility between the electromagnetic pins 800 and the buckles 900 can lock the front guard plate 400 after it is closed, ensuring the stability of the front guard plate 400 after it is closed. One of the side guardrails 200 is fixedly connected to a first push switch 1100 for activating the electromagnetic latch 800. A push plate 1200 for pressing the first push switch 1100 is fixedly connected to one side of the front guard plate 400. When the front guard plate 400 is rotated and closed to the preset position, the push plate 1200 presses the first push switch 1100 simultaneously, automatically triggering the electromagnetic latch 800 to start and insert the buckle 900, thereby achieving automatic locking after the front guard plate 400 is closed. The bottom mounting post 1300 at the bottom of the storage frame of the wheelchair storage device main body 100 has a fixed connection at the bottom of the bottom mounting post 1300 for retracting the electromagnetic latch 800 and extending the output end of the electric telescopic rod 500. When the storage frame of the wheelchair storage device main body 100 is placed on the ground, the ground presses the second pressing switch 1400, which simultaneously realizes the retraction and unlocking of the electromagnetic latch 800 and the extension of the electric telescopic rod 500 to drive the front guard plate 400 to open. This realizes the linkage between unlocking and opening actions, simplifies the operation steps, and improves the efficiency of use.

[0030] Furthermore, connecting angle irons 202 are fixedly connected to the lower left corner of the outer side guardrails 200, and rotating shafts 401 are fixedly connected to both sides of the front guard plate 400, with the rotating shafts 401 rotatably connected to the corresponding connecting angle irons 202.

[0031] The operation process of this embodiment is as follows: When it is necessary to open the front guard plate 400 to take out the wheelchair, the storage frame of the wheelchair storage device body 100 is first placed on the ground smoothly. At this time, the ground presses the second press switch 1400 at the bottom of the bottom mounting column 1300. After the second press switch 1400 is triggered, a control signal is sent synchronously. First, the electromagnetic pins 800 on the outside of the two side guardrails 200 are retracted, so that the electromagnetic pins 800 are separated from the buckles 900 on both sides of the front guard plate 400, and the locking state of the front guard plate 400 is released. Then, the electric telescopic rod 500 is started, so that the output end of the electric telescopic rod 500 extends. Through the automatic circuit breaker 600 between the electric telescopic rod 500 and the lower mounting column 402, the front guard plate 400 is driven to rotate around the two side pivots 401 in the connecting angle iron 202, so as to realize the opening of the front guard plate 400. After the front guard plate 400 is fully opened, it forms a footboard, so that the wheelchair in the storage space can be easily pushed out and taken out.

[0032] Example 2 Please see Figure 3 , Figure 4 , Figure 7 and Figure 8Based on the first specific embodiment, the automatic circuit breaker 600 includes an outer shell 601. A connecting ring 610, rotatably connected to the outside of the lower mounting post 402, is fixedly connected to the bottom of the outer shell 601. A top cover 604 is fixedly connected to the top of the outer shell 601. A conductive pull rod 602 is movably sleeved inside the top cover 604. A metal stop 603 is fixedly sleeved outside the conductive pull rod 602, and the metal stop 603 fits against the inner wall of the outer shell 601. An insulating connecting block 605 is fixedly connected to the top of the conductive pull rod 602. 05 is fixedly connected to the output end of the electric telescopic rod 500. An upper contact plate 608 is fixedly connected to the outside of the conductive rod 602. An installation opening 612 is provided on the side of the outer shell 601. An electric contact spring 609 for connecting to the metal stop 603 is fixedly connected to the side of the outer shell 601, and the electric contact spring 609 is located inside the installation opening 612. An upper spring 606 and a lower spring 607, located at the upper and lower ends of the metal stop 603 respectively, are movably sleeved on the outside of the conductive rod 602. A cover for the installation opening is fixedly connected to the outside of the outer shell 601. The protective shell 611 outside the contact spring 609 and the metal stop 603 are attached to the inner wall of the outer shell 601 to ensure the stability of the metal stop 603 when it moves up and down, and to ensure that it can contact or separate from the contact spring 609. The upper spring 606 and the lower spring 607 provide elastic support for the metal stop 603. When there is no overload pressure, they can maintain stable contact between the metal stop 603 and the contact spring 609 to ensure circuit conduction. When overload pressure occurs, the metal stop 603 slides upward, causing the upper spring 606 to compress, and at the same time, it contacts the contact spring 609. 09 Separation enables power-off protection. When the front guard plate 400 clamps an object, the metal stop 603 slides down, compressing the lower spring 607 and separating it from the contact spring 609, thus achieving power-off protection. The insulating connecting block 605 prevents conductive interference between the output end of the electric telescopic rod 500 and the conductive pull rod 602, ensuring circuit safety. The protective shell 611 protects the mounting port 612 and the contact spring 609, preventing external debris from touching the contact spring 609 and causing poor contact or short circuit, further improving the working stability of the automatic circuit breaker 600.

[0033] Specifically, the mounting plate 701 is externally equipped with an alarm 1500 for sounding an alarm when the front guard plate 400 is overloaded or crushed by an object, and a reset switch 703 for resetting and closing the front guard plate 400. The alarm 1500 promptly sounds an alarm to remind staff to handle the abnormal situation in time, and the reset switch 703 can conveniently control the front guard plate 400 to reset and close after the abnormal situation is handled.

[0034] The operation process of this embodiment is as follows: During the opening and closing of the front guard plate 400, if there is an overload of pressure on the front guard plate 400, the metal stop 603 slides upward and compresses the upper spring 606; if there is pressure from an object being clamped, the metal stop 603 slides downward and compresses the lower spring 607. Both displacements will cause the metal stop 603 to separate from the contact spring 609 in the mounting opening 612 on the side of the outer casing 601, resulting in the disconnection of the power supply circuit of the electric telescopic rod 500. The electric telescopic rod 500 immediately stops moving, realizing power cut-off protection; at the same time, the signal of the circuit disconnection is synchronously transmitted to the alarm outside the mounting plate 701. Device 1500, alarm 1500 sounds an alarm to remind staff to check and remove obstacles in time; after the staff finds the alarm, they deal with the overloaded or pressure-bearing items at the front guard plate 400. After the handling is completed, the metal block 603 in the automatic circuit breaker 600 returns to the initial position of contacting the contact spring 609 under the elastic reset action of the upper and lower springs 607, and the circuit is restored to conduction. Press the reset switch 703 on the mounting plate 701. The reset switch 703 sends a signal to the controller 702. The controller 702 re-controls the electric telescopic rod 500 to move, driving the front guard plate 400 to reset and close.

[0035] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0036] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention.

Claims

1. An automatic turnover protection device for wheelchair storage, comprising two side guards (200) fixedly connected to the inside of the storage frame of a wheelchair storage device main body (100) and a rear guard (300) fixedly connected between the two side guards (200); characterized in that: Two side guardrails (200) are rotationally connected with a front guard plate (400); One of the side guardrails (200) is externally fixedly connected with an upper mounting column (201), one side of the front guard plate (400) is fixedly connected with a lower mounting column (402), the outer portion of the upper mounting column (201) is externally mounted with an electric telescopic rod (500) for opening and closing the front guard plate (400), the outer portion of the lower mounting column (402) is externally mounted with an automatic power breaker (600) for avoiding overloading or pressing of the front guard plate (400), and the automatic power breaker (600) is mounted at the output end of the electric telescopic rod (500). The outer side of one of the side guardrails (200) is provided with a control assembly (700).

2. An automatic roll-over guard for wheelchair storage according to claim 1, wherein, The outer side of one of the side guardrails (200) is provided with a control assembly (700).

3. An automatic roll-over guard for wheelchair storage according to claim 1, wherein, The outer side of one of the side guardrails (200) is provided with a control assembly (700).

4. An automatic roll-over guard for wheelchair storage according to claim 1, wherein, The automatic power breaker (600) comprises an outer sleeve shell (601), the bottom of the outer sleeve shell (601) is fixedly connected with a connecting ring (610) rotationally connected to the outer portion of the lower mounting column (402), the top of the outer sleeve shell (601) is fixedly connected with a top cover (604), the inner portion of the top cover (604) is movably sleeved with a conductive pull rod (602), the outer portion of the conductive pull rod (602) is fixedly sleeved with a metal stop block (603) in abutment with the inner wall of the outer sleeve shell (601), the top of the conductive pull rod (602) is fixedly connected with an insulating connecting block (605) fixedly connected to the output end of the electric telescopic rod (500), the outer portion of the conductive pull rod (602) is fixedly connected with an upper electric contact piece (608), the side of the outer sleeve shell (601) is provided with a mounting opening (612), the side of the outer sleeve shell (601) is fixedly connected with an electric contact spring (609) in communication with the metal stop block (603), and the electric contact spring (609) is located in the inner portion of the mounting opening (612), the outer portion of the conductive pull rod (602) is movably sleeved with an upper spring (606) and a lower spring (607) respectively located at the upper and lower ends of the metal stop block (603), and the outer portion of the outer sleeve shell (601) is fixedly connected with a protective shell (611) covering the outer portions of the mounting opening (612) and the electric contact spring (609).

5. An automatic roll-over guard for wheelchair storage according to claim 4, wherein, The outer side of one of the side guardrails (200) is externally fixedly connected with an electric telescopic rod (500) for opening and closing the front guard plate (400), the outer portion of the lower mounting column (402) is externally mounted with an automatic power breaker (600) for avoiding overloading or pressing of the front guard plate (400), and the automatic power breaker (600) is mounted at the output end of the electric telescopic rod (500). The outer side of one of the side guardrails (200) is externally fixedly connected with an electric telescopic rod (500) for opening and closing the front guard plate (400), the outer portion of the lower mounting column (402) is externally mounted with an automatic power breaker (600) for avoiding overloading or pressing of the front guard plate (400), and the automatic power breaker (600) is mounted at the output end of the electric telescopic rod (500).

6. An automatic roll-over guard for wheelchair storage according to claim 1, wherein, The bottom mounting column (1300) of the storage rack bottom of the wheelchair storage device main body (100), the bottom of the bottom mounting column (1300) is fixedly connected with a second press switch (1400) for retracting the electromagnetic bolt (800) and making the output end of the electric telescopic rod (500) extend.

7. An automatic roll-over guard for wheelchair storage according to claim 1, wherein, The control assembly (700) comprises a mounting plate (701) fixedly connected to the outer side of one of the side guardrails (200), and a controller (702) mounted on the outside of the mounting plate (701).

8. An automatic roll-over guard for wheelchair storage according to claim 7, wherein, The outside of the mounting plate (701) is provided with an alarm (1500) for issuing an alarm when the front guard plate (400) is overloaded or pressed by an object and a reset switch (703) for resetting the front guard plate (400) to be closed.

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