Protective device and sickbed with same

Abstract

The utility model relates to a protective device and a sickbed with the protective device, the protective device comprises a frame part, a mosquito net part and a guardrail part, the frame part comprises a plurality of fixed supporting rods and a plurality of movable supporting rods which are hinged through hinge assemblies; the movable supporting rod can rotate around a hinge assembly arranged at the end of the movable supporting rod to be away from or close to the fixed supporting rod. The mosquito net part comprises a mosquito net main body which surrounds the frame part to form a protection space, and a plurality of zippers for fixing the mosquito net main body on the frame part or opening the protection space are arranged on the surface of the mosquito net main body; the guardrail part comprises a first guardrail and a second guardrail which are arranged on the two sides of the frame part, and the two guardrails are mechanically connected with the hinge assembly so that the two guardrails can ascend and descend relative to the fixed supporting rod under the driving of the rotating motion of the movable supporting rod.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a protective device and a hospital bed with the protective device. Background Art

[0002] As a protective device, mosquito nets are primarily used to prevent mosquito bites, while also providing windbreaks and absorbing airborne dust. They are particularly popular in southern China during the summer. A wide variety of mosquito nets are available in various styles to meet the needs of diverse users.

[0003] However, hospital wards are typically not equipped with mosquito nets. This is particularly true in southern China, where the hot and humid climate encourages active mosquito breeding, making mosquito bites a more serious problem. This not only severely disrupts patients' nighttime rest and reduces sleep quality, but can also adversely affect their recovery and reduce their satisfaction with hospital services. To combat mosquito problems, hospitals often employ a dedicated staff member assigned by the General Affairs Department to spray wards with mosquito repellent. However, this method is not ideal. Furthermore, due to fire and safety concerns, hospitals generally prohibit the use of products such as electric mosquito repellent liquids, electric mosquito tablets, and traditional mosquito coils.

[0004] Compared with the home environment, the size of hospital beds is standardized to 187×78cm, so there are not many mosquito nets suitable for such beds on the market. According to the requirements of hospital infection control, all items used by patients must be terminally disinfected after the patient is discharged, and the frequent flow of personnel in the hospital requires that bedding supplies be easy to disassemble and clean. However, mosquito nets for daily use often have problems such as inconvenient disassembly or complicated installation process, which do not meet the standards for clinical use in hospitals. Existing mosquito nets are inconvenient in disassembly, installation, cleaning and storage, and take up a large space, affecting medical staff's observation and treatment of patients' conditions at night. In addition, mosquito nets may block the line of sight, increasing the risk of patients falling out of bed when moving in bed, especially for children or patients with special diseases (such as impaired consciousness, movement disorders, cognitive disorders, visual impairments, etc.). This risk is more significant.

[0005] Therefore, mosquito nets designed for hospital beds not only need to be structurally adapted to facilitate operation by medical staff and use by patients, but also need to be equipped with reasonable protective structures to reduce the risk of patients falling out of bed.

[0006] CN220423586U discloses a mosquito net for wards that is easy to disassemble and wash. The mosquito net comprises a hook, a connecting ring, a connecting rod, a connecting piece, a track ring, a drawstring, a movable mosquito net, and a mosquito net top cover. The top of the connecting ring is connected to a plurality of connecting rods, the top of the connecting rod is hinged with a hook, the bottom of the connecting ring is provided with a plurality of connecting pieces, the connecting pieces are connected to the track ring, the track ring is disconnected at both ends, the interior is hollow, and there is a notch at the bottom to form a track, balls are evenly arranged on the front and middle sections of the drawstring, the diameter of the balls is smaller than the diameter of the hollow inner wall of the track ring, a mosquito net clip is provided on the top of the movable mosquito net, the width of the mosquito net clip is smaller than the notch, a plurality of balls with holes are provided on the top of the mosquito net clip, and the rear section of the drawstring is inserted into the balls with holes.

[0007] The mosquito net design proposed in this patent is intended to achieve quick replacement to reduce the difficulty of operation for medical staff during the replacement process, and to ensure the stability and firmness of other components, thereby reducing the risk of components falling during replacement and avoiding injury to personnel. However, this design has certain limitations in actual hospital bed applications. Specifically, the mosquito net tightly surrounds the bed when fully expanded, which to a certain extent affects the medical staff's observation of the patient's condition and the convenience of infusion treatment. In addition, due to the full surrounding structure of the mosquito net, medical staff are also restricted in the connection operations of various necessary pipes and wires when treating patients, which may cause inconvenience to rapid treatment in emergency situations.

[0008] In addition, on the one hand, due to differences in understanding among those skilled in the art; on the other hand, because the applicant studied a large number of documents and patents when making this utility model, but due to space limitations, not all details and contents are listed in detail. However, this does not mean that the utility model does not have the characteristics of these prior arts. On the contrary, the utility model already has all the characteristics of the prior art, and the applicant reserves the right to add relevant prior art to the background technology. Utility Model Content

[0009] In response to the shortcomings of the existing technology, the present invention provides a protective device, including a frame portion, a mosquito net portion and a guardrail portion. The frame portion includes a plurality of fixed support rods and a plurality of movable support rods hinged by a hinge assembly. The movable support rod can rotate around the hinge assembly arranged at its end to move away from or closer to the fixed support rod; the mosquito net portion includes a mosquito net main body, which forms a protective space around the frame portion, and a plurality of zippers are arranged on its surface for fixing the mosquito net main body to the frame portion or for opening the protective space; the guardrail portion includes a first guardrail and a second guardrail arranged on both sides of the frame portion, and the two guardrails are mechanically connected to the hinge assembly so that the two guardrails can rise and fall relative to the fixed support rod under the drive of the rotational movement of the movable support rod.

[0010] The fixed and movable support rods of the protective device's frame are connected by a hinge assembly, providing structural stability and operational flexibility. The rotation of the movable support rod directly drives the raising and lowering of the guardrail, providing protection for the bed and preventing patients from accidentally falling. Furthermore, the mosquito net, surrounding the frame, creates an enclosed protective space, effectively preventing mosquito bites and ensuring a more comfortable resting environment for patients. The device's easy-to-remove design, featuring a zipper on the main surface of the mosquito net, allows medical staff to quickly remove the net for cleaning and disinfection, meeting hospital hygiene and infection control standards. Furthermore, when the protective device is not in use, it can be conveniently folded and stored at the head of the mattress, saving space and improving the efficiency of the patient room. The device's installation is quick, labor-saving, and efficient. It secures to the mattress without taking up additional space and facilitates the connection of infusion therapy and various tubing and wiring, further improving medical staff's work efficiency and the flexibility of the bed.

[0011] According to a preferred embodiment, a positioning block is provided at the end of the fixed support rod away from the hinge assembly. The positioning block can define the movement direction of the two guardrails by slidingly engaging in a first slide groove at the end of the first guardrail or a second slide groove at the end of the second guardrail. The cooperation between the positioning block and the slide groove ensures that the guardrails move smoothly along a predetermined trajectory during the raising and lowering process, avoiding instability caused by shaking or offsetting of the guardrails, thereby improving the accuracy and reliability of the operation. In addition, the presence of the positioning block provides an additional support point for the fixed support rod, enhancing the stability of the entire frame, especially when the guardrails are raised or lowered, reducing structural sway or deformation caused by movement.

[0012] According to a preferred embodiment, the movable support rod includes a first movable rod and a second movable rod, and the hinge assembly includes a first gear connected to the end of the first movable rod and a second gear connected to the end of the second movable rod, the first gear can be engaged with the first rack configured for the first guardrail, and the second gear can be engaged with the second rack configured for the second guardrail, so that the rotational movement of the two movable rods can drive the two guardrails to move along the opening direction of the first slide groove or the second slide groove. This design not only achieves effective control of the movement of the guardrail, but also improves the operational efficiency and stability of the entire protective device. Through the precise engagement of the gear and the rack, the lifting and lowering action of the guardrail is smoother and more reliable, reducing operational difficulties caused by friction or jamming. In addition, this structural design also helps to reduce maintenance costs and improve the durability of the device, and is suitable for long-term and stable operation in frequently used environments such as hospitals.

[0013] According to a preferred embodiment, a plurality of first zippers are provided at the bottom edge and top corners of the mosquito net main body, wherein, when the movable support rod is rotated to a predetermined angle, the first zippers can be tightened to fix the mosquito net main body covering the frame portion. The design of the first zipper allows the mosquito net main body to be quickly installed and disassembled, making it convenient for medical staff to quickly replace or clean the mosquito net as needed during daily use, thereby improving the maintenance efficiency of the hospital bed. Through the close fit of the first zipper, the mosquito net main body can be tightly combined with the frame portion to form an effective sealed space, preventing mosquitoes and other small flying insects from entering, and providing patients with a more hygienic and comfortable sleeping environment. After the first zipper is tightened, it can fix the mosquito net main body to prevent displacement or loosening during use, thereby ensuring the stability and protective effect of the mosquito net.

[0014] According to a preferred embodiment, when the movable support rod is rotated to a predetermined angle, the side of the mosquito net main body can be divided into at least three mosquito nets according to the position of the movable support rod, wherein the first mosquito net located at the head of the bed and the second mosquito net adjacent to the first mosquito net are equipped with a plurality of second zippers, which can be opened to open the protective space enclosed by the mosquito net main body. By rotating the movable support rod, the side of the mosquito net main body is divided into different functional mosquito nets. This design enables the mosquito net main body to adapt to different usage scenarios and patient needs. The configuration of the second zipper provides the mosquito net main body with an easy-to-operate opening mechanism, allowing medical staff to quickly enter or exit the protective space according to the needs of treatment or care, thereby improving work efficiency. The second zipper design of the first mosquito net located at the head of the bed and the adjacent second mosquito net facilitates medical staff to easily access patients when performing medical operations such as infusion and monitoring, while maintaining the closedness of the protective space.

[0015] According to a preferred embodiment, an elastic band is connected to the bottom of the first mosquito net, which is secured by a looping mechanism that loops over the headboard. This looping mechanism provides a stable anchor point for the main mosquito net, ensuring that the net will not shift or fall off due to patient movement or external forces during use. Furthermore, the elastic band design allows for quick installation and removal of the main mosquito net, facilitating routine replacement, cleaning, and disinfection by medical staff, thereby improving work efficiency.

[0016] According to a preferred embodiment, the second mosquito net is equipped with a female buckle, and the third mosquito net adjacent to the second mosquito net is equipped with a male buckle matching the female buckle. When the second zipper in the second mosquito net is opened, the second mosquito net can be detachably fixed to the third mosquito net by fastening the female buckle and the male buckle to each other.

[0017] The combination of the female and male buckles provides a simple and effective connection method, allowing the second mosquito net to be quickly attached or released from the third mosquito net, making it easy for medical staff to adjust the mosquito net's opening position as needed. The female and male buckles prevent the mosquito net from accidentally slipping during operation, reducing interference with operation and providing a suitable nursing environment.

[0018] According to a preferred embodiment, through slots are provided at the locations of the first and second guardrails corresponding to the hinge assemblies, and portions of the hubs of the first and second gears can respectively pass through the through slots and rotate synchronously with the two gears. The design of the through slots enables mechanical linkage between the gears and the guardrails, ensuring that when the movable support rod rotates, the first and second gears can drive the corresponding guardrails to move linearly, achieving smooth raising and lowering of the guardrails. The design of the gear hub portion passing through the through slots makes the mechanical structure more compact, reduces external protrusions, reduces space occupancy, and also reduces interference and obstruction during movement.

[0019] According to a preferred embodiment, a first locking member is configured on the surface of the first guardrail. The first locking member is equipped with a locking tongue that abuts against the surface of the hub of the first gear, and the hub surface is equipped with a recessed hole that matches the locking tongue. When the first movable rod rotates to a predetermined angle, the locking tongue of the first locking member engages with the recessed hole, securing the first movable rod and the first guardrail in their current positions. A second locking member is configured on the surface of the second guardrail. The second locking member is equipped with a locking tongue that abuts against the surface of the hub of the second gear, and the hub surface is equipped with a recessed hole that matches the locking tongue. When the second movable rod rotates to a predetermined angle, the locking tongue of the second locking member engages with the recessed hole, securing the second movable rod and the second guardrail in their current positions. The locking tongue of the locking member precisely matches the recessed hole on the gear hub, ensuring that the guardrail is stably fixed in its current position when the movable support rod rotates to the predetermined angle, thereby improving the accuracy of guardrail operation. Through the locking mechanism of the locking member, the guardrail is less likely to move or vibrate accidentally during use, enhancing the stability of the entire protective device and providing a safer protective environment for patients. The locking mechanism allows medical staff to secure and unlock the siderail with a simple operation, streamlining the process and improving their work efficiency. The locking mechanism, where the locking tongue snaps into the recessed hole, provides a secure fixation, reducing the risk of accidental loosening of the siderail during use and minimizing the risk of patient injury.

[0020] Another aspect of the present invention also relates to a hospital bed, wherein the aforementioned protective device is arranged above the bed body of the hospital bed. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is an overall schematic diagram of the frame portion and guardrail portion provided by the utility model;

[0022] Figure 2 This is a disassembled schematic diagram of the frame portion and guardrail portion provided by the present invention;

[0023] Figure 3 This is a schematic diagram of the frame portion and guardrail portion provided by the present invention being installed on a bed body;

[0024] Figure 4 This is a schematic diagram showing the position of the hinge assembly from an internal perspective when the guardrail portion provided by the present invention is not raised;

[0025] Figure 5 This is a schematic diagram showing the position of the hinge assembly from another internal perspective when the guardrail portion provided by the present invention is not raised;

[0026] Figure 6 This is a schematic diagram of the position of the hinge assembly from an external perspective when the guardrail portion provided by the present invention is not raised;

[0027] Figure 7 This is a schematic diagram of the overall structure of a hospital bed with a protective device provided by the present invention;

[0028] Figure 8 This is a schematic diagram showing the position of the hinge assembly from an internal perspective when the guardrail portion provided by the present invention is raised;

[0029] Figure 9 This is a schematic diagram showing the position of the hinge assembly when the guardrail portion provided by the present invention is raised from an external perspective;

[0030] Figure 10 This is a cross-sectional view of the locking member provided by the present invention when performing the locking function.

[0031] Reference Signs List

[0032] 100: Frame portion; 110: Fixed support rod; 111: Positioning block; 120: Movable support rod; 121: First movable rod; 122: Second movable rod; 130: Hinge assembly; 131: First gear; 132: Second gear; 200: Mosquito net portion; 210: Mosquito net main body; 211: First mosquito net; 212: Second mosquito net; 213: Third mosquito net; 220: First zipper; 230: Second zipper; 240: Female buckle; 250: Male buckle; 260: Elastic band; 300: Guardrail portion; 310: First guardrail; 311: First rack; 312: First locking member; 313: First slide groove; 320: Second guardrail; 321: Second rack; 322: Second locking member; 323: Second slide groove. DETAILED DESCRIPTION

[0033] The following is a detailed description with reference to the accompanying drawings.

[0034] The utility model relates to a protective device, such as Figure 1 、 Figure 2 、 Figure 7 As shown, it comprises a frame portion 100 as the main structure of the protective device, a mosquito net portion 200 covering the frame portion 100, and guardrail portions 300 arranged on both sides of the frame portion 100. Another aspect of the present invention also relates to a hospital bed, wherein the aforementioned protective device is arranged above the bed body.

[0035] Preferably, if Figure 1 As shown, the frame portion 100 of the protective device includes a plurality of fixed support rods 110 and movable support rods 120, which are hinged by a hinge assembly 130. The fixed support rods 110 provide stability to the structure, while the movable support rods 120 allow rotational movement to achieve dynamic adjustment away from or close to the fixed support rods 110. Preferably, there are two fixed support rods 110 and two movable support rods 120, and to match the dimensions of a hospital bed of 187×78 cm, the fixed support rods 110 and the movable support rods 120 are configured as a door frame-type structure with a length of 94 cm and a width of 78 cm. The fixed support rods 110 can be laid on both sides of the bed to form a flat base of the frame portion 100.

[0036] Preferably, if Figure 7 As shown, the mosquito net portion 200 includes a mosquito net body 210, which fits tightly against the frame portion 100, forming a sealed protective space that effectively isolates external interference, such as mosquitoes. The mosquito net body 210 is made of polyester fiber and features a honeycomb mesh structure, making it more stable, less prone to damage, and providing excellent transparency. To facilitate installation and removal of the mosquito net body 210, multiple zippers are provided on its surface. These zippers not only secure the mosquito net body 210 to the frame portion 100, but also allow for quick opening and closing of the protective space, creating an access window for infusion therapy and connecting various tubing and wires.

[0037] Preferably, if Figure 2 As shown, the guardrail portion 300 includes a first guardrail 310 and a second guardrail 320, which are arranged opposite each other and are respectively disposed on either side of the frame portion 100. The two guardrails are mechanically connected to the movable support rod 120 via a hinge assembly 130, ensuring that the guardrails can be raised or lowered synchronously when the movable support rod 120 rotates, thereby preventing children or patients with limited mobility from accidentally falling off the bed.

[0038] Preferably, if Figure 2As shown, the fixed support rod 110 is equipped with a positioning block 111 at its end away from the hinge assembly 130. This positioning block 111 is designed to precisely control the direction of guardrail movement. The positioning block 111 engages the first slot 313 at the end of the first guardrail 310 or the second slot 323 at the end of the second guardrail 320 through a sliding engagement mechanism. This design ensures the accuracy and stability of the guardrail's movement trajectory during raising and lowering, avoiding potential structural problems or operational errors caused by deviations in movement direction. Specifically, the sliding engagement of the positioning block 111 allows it to move freely within the slot while maintaining sufficient friction to limit lateral movement of the guardrail, ensuring that the guardrail is raised and lowered only along a predetermined vertical or inclined trajectory. This structural design not only improves operational convenience and guardrail movement accuracy, but also enhances overall stability and durability. This is particularly important in environments such as hospitals where bed guards require frequent use and cleaning, helping to improve the efficiency of medical staff while ensuring patient safety and comfort.

[0039] Preferably, if Figure 2 As shown, the movable support rod 120 includes a first movable rod 121 and a second movable rod 122, each of which is connected to a corresponding portion of the hinge assembly 130. The two movable rods can rotate without interfering with each other, forming the foundation for erecting the mosquito net main body 210. Preferably, starting from a point where the movable rod is parallel to the fixed support rod 110, the first movable rod 121 and the second movable rod 122 can each rotate at a predetermined angle of 60°. This configuration ensures that the frame portion 100 has the most stable structure.

[0040] Preferably, if Figure 2 As shown, the hinge assembly 130 includes two gears, namely a first gear 131 and a second gear 132, which are respectively connected to the ends of the first movable rod 121 and the second movable rod 122. This configuration allows the rotational movement of the movable support rod 120 to be converted into linear motion of the guardrail through the meshing mechanism of the gear and rack. The first gear 131 and the first rack 311 on the first guardrail 310 are designed to mesh with each other. Similarly, the second gear 132 and the second rack 321 on the second guardrail 320 are also designed to mesh with each other. This gear-and-rack coordination ensures that when the movable support rod 120 rotates, it can accurately drive the first guardrail 310 and the second guardrail 320 to move linearly along the first and second slide grooves 313 and 323 at their respective ends, thereby achieving the raising and lowering of the guardrail. This design enables the guardrail to move synchronously when the frame part 100 is erected, that is, when the medical staff rotates the movable support rod 120 to the predetermined position, the guardrail part 300 also rises to the predetermined position, which has the function of preventing patients from falling and simplifies the operation of medical staff.

[0041] Preferably, if Figure 7 As shown, the mosquito net body 210 is equipped with several first zippers 220 at the bottom edge and top corners. These zippers are designed to securely secure the mosquito net body 210 to the frame 100. Specifically, zipper strips are provided where the mosquito net body connects to the top and sides of the frame, and the first zippers 220 can be positioned above these strips. When the movable support rod 120 is rotated to a predetermined angle, the first zippers 220 are tightened, ensuring that the mosquito net body 210 lies flat on the frame 100, forming a sealed protective space. This design allows for greater flexibility during installation and removal of the mosquito net body 210 while ensuring stability and sealing during use. Furthermore, the placement of the first zippers 220 takes into account the need for easy cleaning and disinfection, which is particularly important in environments such as hospitals where high hygiene conditions are required. This design allows medical staff to easily remove the mosquito net for cleaning and disinfection, while also reducing potential hygiene issues caused by the net becoming loose.

[0042] Preferably, if Figure 7 As shown, after the movable support rod 120 is rotated to a predetermined angle and the mosquito net body 210 is secured, the side of the mosquito net body 210 can be divided into at least three functional mosquito nets to accommodate different usage needs and ease of operation. Specifically, each of the three mosquito nets can be triangular in shape. The first mosquito net 211 at the head of the bed and the second mosquito net 212 immediately adjacent to the first mosquito net 211 are each equipped with a plurality of second zippers 230. These second zippers 230 allow medical staff to open or close the protective space enclosed by the mosquito net body 210 as needed. When the second zippers 230 are opened, the protective space is ventilated and facilitates medical staff's observation and operation. Furthermore, the provision of the second zippers 230 also takes into account the need for rapid access, especially in emergency situations, so that necessary medical procedures can be performed quickly on the patient.

[0043] Preferably, if Figure 1 、 Figure 7 As shown, the bottom of the first mosquito net 211 is specially designed with an elastic band 260. This elastic band 260 secures the mosquito net body 210 by looping over the headboard. This design allows the elastic band 260 to provide sufficient tension to keep the mosquito net body 210 tightly fitted to the headboard. This looping allows the elastic band 260 to be quickly secured or released, making it easier for medical staff to adjust or replace the mosquito net when needed. Furthermore, the elastic properties of the elastic band 260 can buffer the pulling forces that may be exerted on the mosquito net by the patient's movements, reducing wear on the mosquito net material and extending its service life.

[0044] Preferably, if Figure 7As shown, the second mosquito net 212 and the adjacent third mosquito net 213 cooperate with each other through a quick-release connection mechanism. Specifically, a female buckle 240 is installed on the edge of the second mosquito net 212, while a male buckle 250 that mates with the female buckle 240 is installed at the corresponding position of the third mosquito net 213. This design allows the second mosquito net 212 to be secured and lifted up through the snapping mechanism of the female buckle 240 and the male buckle 250 when the second zipper 230 of the second mosquito net 212 is unzipped and the mosquito net body 210 needs to be partially opened or adjusted, allowing for more time-consuming care activities. The snapping mechanism not only provides a simple operation method, but also ensures the stability of the mosquito net body 210 during use.

[0045] Preferably, if Figures 1 to 9 As shown, the design of the first and second guardrails 310 and 320 includes through slots corresponding to the positions of the hinge assembly 130. These slots are designed to accommodate the hubs of the first and second gears 131 and 132, allowing the hubs of these gears to pass through the slots and rotate with the gears on the opposite sides of the first and second guardrails 310 and 320. Specifically, the first and second gears 131 and 132 are connected to the ends of the first and second movable rods 121 and 122, respectively, and their hubs are designed to fit into the through slots. When the movable support rod 120 rotates, the gears rotate accordingly, driving the first and second guardrails 310 and 320 to perform corresponding linear motion through the through slots. This design achieves mechanical linkage between the raising and lowering of the guardrails and the rotation of the movable support rod 120. The through slots not only ensure mechanical connection and synchronous movement between the gears and the guardrails, but also provide the necessary space for the gears to rotate, thus avoiding interference or obstruction during movement. Furthermore, the slot design takes into account structural compactness and stability, ensuring the reliability and durability of the entire guard during operation. This coordinated design of gears and slots enables efficient and smooth guardrail raising and lowering, while simplifying the mechanical structure and reducing maintenance difficulty and costs.

[0046] Preferably, if Figures 4 to 6 , Figures 8 to 10As shown, the surfaces of the first guardrail 310 and the second guardrail 320 are respectively equipped with a first locking member 312 and a second locking member 322. These locking members are designed to precisely secure the guardrails in place. The first locking member 312 includes a locking tongue designed to abut and engage with a recessed hole in the hub surface of the first gear 131. Correspondingly, the second locking member 322 also includes a locking tongue designed to engage with a recessed hole in the hub surface of the second gear 132. The matching design of these recessed holes and locking tongues ensures that when the movable support rod 120 is rotated to a specific angle, the locking tongues precisely engage with the recessed holes, thereby securing the first movable rod 121 and first guardrail 310, as well as the second movable rod 122 and second guardrail 320 in their current positions. The matching design of the recessed holes and locking tongues requires calculations and simulations during the design phase. This involves comprehensive consideration of the gear hub dimensions, the location and shape of the recessed holes, and the dimensions and elastic properties of the locking tongues. Through these calculations, it can be ensured that when the movable support rod 120 is rotated to a specific angle, the lock tongue can be accurately aligned with the recessed hole and snapped into it. The lock tongue design of the locking member usually has a certain degree of elasticity, which allows them to naturally move toward the surface of the hub without external force, so that they can be snapped into the recessed hole of the hub. This elastic design also allows the lock tongue to be quickly unlocked when it is necessary to cancel the fixation. The medical staff can use external force to operate the toggle member provided on the locking member to pull the lock tongue out of the recessed hole, thereby releasing the fixed state of the guardrail. This design not only improves the convenience of operation, but also reduces equipment damage or inconvenience in use caused by improper operation.

[0047] It should be noted that the above-mentioned specific embodiments are exemplary, and those skilled in the art can come up with various solutions inspired by the disclosure of this utility model, and these solutions also belong to the disclosure scope of this utility model and fall within the protection scope of this utility model. Those skilled in the art should understand that the specification of this utility model and its drawings are illustrative and do not constitute a limitation on the claims. The scope of protection of this utility model is defined by the claims and their equivalents. This utility model specification contains multiple concepts, such as "preferably" and "according to a preferred embodiment", which means that the corresponding paragraph discloses an independent concept, and the applicant reserves the right to file a divisional application based on each concept.

Claims

1. A protective device, characterized in that: It comprises a frame part (100), a mosquito net part (200) and a guardrail part (300), The frame portion (100) includes a plurality of fixed support rods (110) and a plurality of movable support rods (120) hingedly connected via a hinge assembly (130), wherein the movable support rods (120) are capable of rotating around the hinge assembly (130) disposed at their ends to move away from or toward the fixed support rods (110); The mosquito net portion (200) comprises a mosquito net main body (210), the mosquito net main body (210) surrounds the frame portion (100) to form a protective space, and a surface of the mosquito net main body (210) is provided with a plurality of zippers for fixing the mosquito net main body (210) to the frame portion (100) or for opening the protective space; The guardrail portion (300) comprises a first guardrail (310) and a second guardrail (320) arranged on both sides of the frame portion (100), and the two guardrails are mechanically connected to the hinge assembly (130) so that the two guardrails can be raised and lowered relative to the fixed support rod (110) under the drive of the rotational movement of the movable support rod (120).

2. The device according to claim 1, characterized in that The end of the fixed support rod (110) away from the hinge assembly (130) is provided with a positioning block (111), and the positioning block (111) can limit the movement direction of the two guardrails by slidingly engaging in a first sliding groove (313) at the end of the first guardrail (310) or a second sliding groove (323) at the end of the second guardrail (320).

3. The device according to claim 2, characterized in that The movable support rod (120) includes a first movable rod (121) and a second movable rod (122); the hinge assembly (130) includes a first gear (131) connected to the end of the first movable rod (121) and a second gear (132) connected to the end of the second movable rod (122); the first gear (131) can be meshed with a first rack (311) configured for the first guardrail (310), and the second gear (132) can be meshed with a second rack (321) configured for the second guardrail (320), so that the rotational movement of the two movable rods can drive the two guardrails to move along the opening direction of the first slide groove (313) or the second slide groove (323).

4. The device according to claim 1, characterized in that A plurality of first zippers (220) are arranged at the bottom edge and top corners of the mosquito net main body (210), wherein when the movable support rod (120) is rotated to a predetermined angle, the first zippers (220) can be tightened to fix the mosquito net main body (210) covering the frame part (100).

5. The device according to claim 4, characterized in that When the movable support rod (120) is rotated to a predetermined angle, the side surface of the mosquito net main body (210) can be divided into at least three mosquito nets according to the position of the movable support rod (120), wherein a first mosquito net (211) located at the head of the bed and a second mosquito net (212) adjacent to the first mosquito net (211) are provided with a plurality of second zippers (230), and the plurality of second zippers (230) can be opened to open the protective space enclosed by the mosquito net main body (210).

6. The device according to claim 5, characterized in that The bottom of the first mosquito net (211) is connected to an elastic band (260) for fixing the mosquito net portion (200) in a sleeve-type manner to the head of a bed.

7. The device according to claim 5, characterized in that The second mosquito net (212) is equipped with a female buckle (240), and a third mosquito net (213) adjacent to the second mosquito net (212) is equipped with a male buckle (250) matching the female buckle (240). When the second zipper (230) in the second mosquito net (212) is opened, the second mosquito net (212) can be detachably fixed to the third mosquito net (213) by the mutual fastening of the female buckle (240) and the male buckle (250).

8. The device according to claim 3, characterized in that The first guardrail (310) and the second guardrail (320) are both provided with through slots at positions corresponding to the hinge assembly (130), and part of the hubs of the first gear (131) and the second gear (132) can respectively pass through the through slots and rotate synchronously with the two gears.

9. The device according to claim 8, characterized in that The surface of the first guardrail (310) is provided with a first locking member (312), the first locking member (312) is equipped with a locking tongue that abuts against the hub surface of the first gear (131), the hub surface is provided with a concave hole matching the locking tongue, and when the first movable rod (121) is rotated to a predetermined angle, the locking tongue of the first locking member (312) is engaged in the concave hole to fix the first movable rod (121) and the first guardrail (310) in the current position; The surface of the second guardrail (320) is provided with a second locking member (322), and the second locking member (322) is equipped with a locking tongue that abuts against the surface of the hub of the second gear (132), and the surface of the hub is provided with a recessed hole that matches the locking tongue. When the second movable rod (122) is rotated to a predetermined angle, the locking tongue of the second locking member (322) is engaged in the recessed hole to fix the second movable rod (122) and the second guardrail (320) in the current position.

10. A hospital bed, characterized in that: A protective device according to any one of claims 1 to 9 is arranged above the bed.

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