Novel intelligent sofa bed anti-pinch sensitive switch

Abstract

The utility model relates to switch technical field discloses a new -type intelligent sofa bed anti -pinch pressure sensitive switch, including fixed band body, the fixed band body is the flexible structure that can bend as a whole, adapts the folding deformation demand of medical mattress or intelligent sofa, the lower end of fixed band body integrative formation has side, the side is used for inserting the sewing edge of medical mattress or intelligent sofa realizes quick positioning fixed. In the utility model, through the side of the lower end of fixed band body inserts the sewing edge of medical mattress or intelligent sofa, realizes quick fixing, whole installation does not need additional screw, gumming or special tool, can realize fixed, easy operation, when medical mattress or intelligent sofa is folded, the side fixed by sewing edge can effectively prevent the fixed band body whole rotation, ensures the long -term stability of installation state, thereby effectively prevents its function failure, improved the reliability in the course of using.

Description

Technical Field

[0001] This utility model relates to the field of pressure-sensitive switch technology, and in particular to a novel intelligent sofa bed anti-pinch pressure-sensitive switch. Background Technology

[0002] With the rapid development of smart homes and medical care, products such as smart foldable sofas and medical beds are becoming increasingly popular. However, there is a safety hazard of pinching the human body during folding and adjustment. Pressure-sensitive switches, as a core safety protection component, are widely used in these products. When subjected to a certain pressure, the electrical properties of the pressure-sensitive material will change. This change is converted into an electrical signal, thereby realizing the switching function of the switch to conduct or disconnect. It is used to detect the squeezing signal and trigger the device to stop operating, so as to ensure safe use.

[0003] Most existing smart sofa bed anti-pinch pressure switches lack fixing and anti-rotation auxiliary structures. These switches are mostly cylindrical in shape and rely on adhesive or external clips for fixing. However, during repeated folding and unfolding of the sofa bed, the adhesive or external clips are prone to loosening and falling off due to rotation, which can cause positional displacement. This makes it impossible for the pressure switch to accurately detect the squeezing signal, ultimately causing the device's protective function to fail and increasing the safety hazard of pinching injuries.

[0004] Therefore, those skilled in the art have provided a novel intelligent sofa bed anti-pinch pressure-sensitive switch to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a novel intelligent sofa bed anti-pinch pressure-sensitive switch. The switch is fixed by fixing the side of the lower end of the main body, effectively preventing the switch from rotating.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A novel intelligent sofa bed anti-pinch pressure-sensitive switch includes a fixing strap body, which is an integrally bendable flexible structure to adapt to the folding deformation requirements of medical mattresses or intelligent sofas.

[0008] The lower end of the fixing strap body is integrally formed with a side edge, which is used to insert into the sewn edge of a medical mattress or smart sofa to achieve quick positioning and fixing.

[0009] The fixing belt body has a wire core fixedly sleeved inside. The wire core works in conjunction with the fixing belt body to transmit the anti-pinch pressure signal.

[0010] Furthermore, the core wire is an integrally bendable flexible structure that is compatible with the bending characteristics of the fixing strap body. The fixing strap body and the side are integrally formed to ensure connection strength.

[0011] Furthermore, the side is a flexible structure that can be bent as a whole, adapting to the folding operation of medical mattresses or smart sofas;

[0012] The upper end of the side is located at the lower end of the wire core, and the positioning function of the side ensures the installation stability of the wire core within the fixing tape body.

[0013] Furthermore, a signal line is fixedly embedded at the rear end of the fixed strap body, and the front end of the signal line is fixedly connected to the rear end of the wire core.

[0014] Furthermore, the cross-sectional length of the side is 15mm, a size that fits the sewing edge width of conventional medical mattresses and smart sofas.

[0015] Furthermore, the height of the fixing strap body itself is 5.02mm, the height of the side is 1mm, the total height after the two heights are added together is 6.02mm, and the cross-sectional diameter of the fixing strap body itself is 7mm.

[0016] Furthermore, both sides of the side are rounded transition structures with a radius of 1-2 mm. The length of the rounded transition extends along the height direction of the side, covering the entire height of the side, and the rounded surface is smooth and burr-free.

[0017] This utility model has the following beneficial effects:

[0018] This utility model proposes a novel anti-pinch pressure-sensitive switch for smart sofa beds. During installation, the side of the fixing strap body is inserted into the sewn edge of the medical mattress or smart sofa for quick fixation. The entire installation requires no additional screws, adhesives, or special tools, making it easy to operate. When the medical mattress or smart sofa is folded, the side fixed by the sewn edge effectively prevents the fixing strap body from rotating as a whole, ensuring long-term stability of the installation state and thus effectively preventing functional failure and improving reliability during use. Attached Figure Description

[0019] Figure 1 This is a frontal axonometric view of the entire utility model;

[0020] Figure 2 This is a side axonometric view of the entire utility model;

[0021] Figure 3 This is a bottom-view axonometric schematic diagram of the entire utility model;

[0022] Figure 4This is a front view schematic diagram of the present invention close to the wire core.

[0023] Legend:

[0024] 1. Fixing strap body; 2. Side; 3. Wire core; 4. Signal wire. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Reference Figures 1-4 One embodiment provided by this utility model:

[0027] A novel intelligent sofa bed anti-pinch pressure-sensitive switch includes a fixing strap body 1, which is an integrally bendable flexible structure to adapt to the folding deformation requirements of medical mattresses or intelligent sofas.

[0028] The lower end of the fixing strap body 1 is integrally formed with a side 2, which is used to insert into the sewing edge of a medical mattress or smart sofa to achieve quick positioning and fixing.

[0029] The fixing belt body 1 has a wire core 3 fixedly sleeved inside. The wire core 3 works in conjunction with the fixing belt body 1 to transmit the anti-pinch pressure signal.

[0030] The core 3 is a flexible structure that can be bent as a whole, which is compatible with the bending characteristics of the fixing strap body 1. The fixing strap body 1 and the side 2 are integrally formed to ensure the connection strength. The side 2 is a flexible structure that can be bent as a whole, which is compatible with the folding operation of medical mattresses or smart sofas. The upper end of the side 2 is set at the lower end of the core 3. The positioning function of the side 2 ensures the installation stability of the core 3 in the fixing strap body 1.

[0031] The signal line 4 is fixedly embedded in the rear end of the fixing strap body 1. The front end of the signal line 4 is fixedly connected to the rear end of the wire core 3. The cross-sectional length of the side 2 is 15mm, which is suitable for the sewing edge width of conventional medical mattresses and smart sofas. The height of the fixing strap body 1 itself is 5.02mm, the height of the side 2 is 1mm, and the total height after the two heights are added together is 6.02mm. The cross-sectional diameter of the fixing strap body 1 itself is 7mm.

[0032] Both sides of side 2 have rounded transition structures with a radius of 1-2mm. The length of the rounded transition extends along the height of side 2, covering the entire height of side 2. The rounded surface is smooth and burr-free.

[0033] Specifically, when fixing the whole, the side 2 of the fixing strap body 1 can be directly clamped to the edge of the mattress or the seam of the sofa by the sewing edge of the smart sofa or mattress. Then, the signal line 4 at the rear end of the fixing strap body 1 is electrically connected to the external sensor to complete the fixed installation of the whole in the smart sofa or medical bed.

[0034] Side 2 forms a wide support structure, and the 15mm length of the cross section can effectively increase the contact area between the switch and the mattress, thus facilitating its fixation to the sewing edge of the mattress. At the same time, it effectively prevents the switch from rotating and shifting due to mechanical force or friction during the folding and adjustment of the device, ensuring that the switch is always in the preset detection position and avoiding missed detection or false detection.

[0035] The rounded corners of side 2 and the overall cross-sectional height allow it to be adapted to the thickness of regular sofa or mattress fabrics. It can be directly adapted to the sewn edges of sofas or mattresses without the need for additional auxiliary fixing structures. The entire installation process is relatively simple, and it reduces the time cost and operation difficulty during the installation process. At the same time, it can be embedded in the narrow folding gaps of sofa beds or medical care beds without affecting the comfort and appearance of sofa beds or medical care beds.

[0036] The fixing strap body 1 and the side 2 are integrated fixing structures, which can effectively improve the bending resistance and wear resistance of the overall structure, thereby extending the service life of the switch in frequent folding scenarios. In addition, both sides of the side 2 are rounded to avoid sharp edges from scratching the user's skin, clothing or bed fabric. The signal line 4 is built into the rear end of the fixing strap body 1 for easy connection with external devices. Moreover, the modular structure also facilitates later replacement or maintenance.

[0037] It should be noted that the resistance value of the wire core 3 changes with the external squeezing pressure. When the sofa bed is folded and a pinching situation occurs, the external pressure acts on the fixing belt body 1, causing the wire core 3 to deform and the resistance value to change accordingly. The signal line 4 transmits the resistance change signal of the wire core 3 to the external control module. After the control module recognizes the abnormal signal, it immediately triggers the sofa bed to stop folding, realizing the anti-pinch protection function. The above technology is a mature and publicly available technology. Therefore, its specific structure and working principle will not be described in detail in this article.

[0038] The fixing strap body 1 is made of flame-retardant thermoplastic polyurethane material, which is wear-resistant, bend-resistant and waterproof. It can adapt to the frequent folding environment of sofa beds and avoid safety accidents caused by accidental high temperature. The signal line 4 is a double-core shielded cable. The shielding layer can reduce external electromagnetic interference, avoid false triggering or signal loss during signal transmission, and ensure the communication stability with the external control module.

[0039] The cross-section of side 2 is adapted to the depth of the sewing edge structure of sofa beds or medical mattresses. Its 15mm cross-sectional length matches the double-line spacing of the sewing edge of a conventional sofa bed. Furthermore, a non-slip groove is provided on the side of side 2 near the fixing strap body 1. When side 2 is inserted into the sewing edge, the sewing thread can be embedded in the non-slip groove to form a mechanical engagement. At the same time, side 2 has a certain deformation capacity, which can tightly fit the inner side material of the sewing edge and prevent side 2 from loosening due to vibration or slight pulling. In addition, the connection between side 2 and fixing strap body 1 adopts a structure with rounded transition and reinforcing ribs, which can further prevent relative displacement between fixing strap body 1 and side 2 after installation and ensure the reliability of fixation. All contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0040] Working principle: During installation, first align the side 2 of the pressure-sensitive switch fixing strap body 1 with the seam edge of the mattress or sofa of the sofa bed or medical care bed. Then, use a sewing process to follow the edge of the side 2 to firmly fix the side 2 to the seam edge, so that the fixing strap body 1 fits into the movable clip. Subsequently, connect the signal line 4 led out from the rear end of the fixing strap body 1 to the external sensor or control device to complete the electrical connection, thereby realizing the assembly and fixing of the entire pressure-sensitive switch.

[0041] When the medical bed or smart sofa is folded or unfolded, the lateral torsional force generated by folding or unfolding is directly offset by the sewn-fixed side 2, thereby restricting the fixing strap body 1 from rotating along its own axis, so that it always stays in the preset installation position in the movable gap, and avoids its position shifting due to mechanical movement.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A novel intelligent sofa bed anti-pinch pressure-sensitive switch, comprising a fixing strap body (1), characterized in that: The fixing strap body (1) is an integrally bendable flexible structure that can adapt to the folding and deformation requirements of medical mattresses or smart sofas. The lower end of the fixing strap body (1) is integrally formed with a side (2), which is used to insert into the sewing edge of a medical mattress or smart sofa to achieve quick positioning and fixing; The fixing belt body (1) is fitted with a wire core (3) inside. The wire core (3) works together with the fixing belt body (1) to transmit the anti-pinch pressure signal.

2. The novel intelligent sofa bed anti-pinch pressure-sensitive switch according to claim 1, characterized in that: The core (3) is a flexible structure that can be bent as a whole, which is compatible with the bending characteristics of the fixing tape body (1). The fixing tape body (1) and the side (2) are integrally formed to ensure the connection strength.

3. The novel intelligent sofa bed anti-pinch pressure-sensitive switch according to claim 1, characterized in that: The side (2) is a flexible structure that can be bent as a whole, which is adapted to the folding operation of medical mattresses or smart sofas. The upper end of the side (2) is set at the lower end of the core (3), and the positioning function of the side (2) ensures the installation stability of the core (3) within the fixed tape body (1).

4. The novel intelligent sofa bed anti-pinch pressure-sensitive switch according to claim 1, characterized in that: The signal line (4) is fixedly embedded in the rear end of the fixed belt body (1), and the front end of the signal line (4) is fixedly connected to the rear end of the wire core (3).

5. A novel intelligent sofa bed anti-pinch pressure-sensitive switch according to claim 1, characterized in that: The cross-sectional length of the side (2) is 15mm, which is suitable for the sewing edge width of conventional medical mattresses and smart sofas.

6. The novel intelligent sofa bed anti-pinch pressure-sensitive switch according to claim 1, characterized in that: The height of the fixing strap body (1) is 5.02 mm, the height of the side (2) is 1 mm, and the total height after the two heights are added together is 6.02 mm. The cross-sectional diameter of the fixing strap body (1) is 7 mm.

7. A novel intelligent sofa bed anti-pinch pressure-sensitive switch according to claim 1, characterized in that: Both sides of the side (2) are arc transition structures with an arc radius of 1-2 mm. The length of the arc transition extends along the height direction of the side (2) and the extension range covers the entire height of the side (2). The arc surface is smooth and burr-free.

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