A bed restraint

Abstract

The utility model provides a kind of binding fixing device for bed, including at least one fixed unit, and fixed unit includes shell, reel, switch assembly and bandage;Shell is equipped with installation cavity and pull-out mouth, reel is installed in installation cavity;Switch assembly is arranged between reel and shell;Bandage one end is wound and fixed on reel, other end extends from pull-out mouth, can be detachably fixed connection with shell.Use, fixed unit is installed to bed body specified position, switch assembly is dialled to unlock state, bandage is pulled out, after winding and binding target is connected with shell, then switch is operated to locking state, complete fixing.The utility model can use one fixed unit, and single limb is constrained;Two or more fixed units are also used, and more comprehensive, more firm control is realized to torso and limbs.Connection is realized through detachable fixed connection structure, reduce the security risk caused by constraint failure, and also guarantee the operation efficiency of medical staff in emergency.

Description

Technical Field

[0001] This utility model relates to the field of medical auxiliary device technology, specifically to a bed-mounted binding and fixing device. Background Technology

[0002] In clinical medical care, protective restraint is an important safety management measure widely used for patients at risk of behavioral loss of control, such as those with impaired consciousness, mental abnormalities, agitation, or those in the postoperative recovery period. Its main purpose is to appropriately limit the patient's range of motion to prevent adverse events such as self-harm, harm to others, falls from bed, catheter dislodgement, and surgical site injury caused by unconscious or uncooperative behavior, thereby ensuring the safety of both patients and medical staff and ensuring the smooth progress of diagnosis and treatment.

[0003] Currently, clinically used restraint straps are typically secured to bed rails or frames through wrapping or knotting to restrict the movement of a patient's limbs or trunk. However, this traditional method of fixation has several shortcomings in practical application. First, the restraint achieved through wrapping and knotting is less secure; the knots can easily loosen or even detach completely due to the patient struggling, twisting, or prolonged friction, posing a safety hazard. Second, the strength of the knots is highly dependent on the knot-tying skills of the operator; significant differences exist in the techniques used by different medical personnel, lacking standardized procedures and affecting the consistency and reliability of the restraint effect. Furthermore, in sudden emergencies, such as when a patient's condition changes and immediate release from restraint is required, if the knots are too tight or complex, it often takes considerable time to untie them, delaying rescue efforts and impacting emergency response efficiency.

[0004] Therefore, there is an urgent need to provide a new type of protective restraint device that is structurally sound, easy to operate, reliably fixed, easy to release quickly, and balances safety and emergency response capabilities, so as to better meet actual clinical needs. Utility Model Content

[0005] Therefore, the technical problem to be solved by this utility model is to overcome the technical defects of the prior art, which is that restraint straps are usually fixed to bed rails or bed frames by wrapping or knotting. This fixing method is easy to loosen and lacks reliability in terms of firmness. Furthermore, in sudden emergency situations, if the knot is too tight or the structure is complex, it can easily affect the efficiency of emergency handling. Therefore, this utility model provides a bed binding and fixing device that is structurally reasonable, easy to operate, reliable in fixing, easy to release quickly, and takes into account both safety and emergency response capabilities.

[0006] Therefore, this utility model provides a bed binding and fixing device, including at least one fixing unit, the fixing unit comprising: The outer shell is suitable for installation on the bed frame. The outer shell has an installation cavity inside, a pull-out opening on the right side wall that communicates with the installation cavity, and a first detachable fixed connection structure on the left side wall. The reel is rotatably mounted in the mounting cavity via a support structure; A switch assembly, disposed between the reel and the housing, has an unlocked state that allows the reel to rotate and a locked state that prevents the reel from rotating; The strap has one end wound and fixed on the spool, and the other end extends out from the pull-out opening. It is also provided with a second detachable fixing connection structure that can be matched and connected with the first detachable fixing connection structure.

[0007] Furthermore, the support structure includes: There are two support plates, spaced apart within the mounting cavity; the two ends of the roller are rotatably mounted on the two support plates.

[0008] Furthermore, the switching assembly includes: The first snap-fit ​​structure is fixedly connected to the inner wall of the mounting cavity; A locking member is axially movable to one end of the reel via a connecting structure. A circumferential limiting structure is provided between the locking member and the reel to restrict their relative rotation. The locking member is provided with a second snap-fit ​​structure, which is arranged opposite to the first snap-fit ​​structure along the axial direction of the reel, and the two can be matched and snapped together to restrict the rotation of the locking member. The elastic element connects the spool and the locking element respectively, and has the tendency to drive the locking element to move along the axial direction of the spool so that the second locking structure engages with the first locking structure; A push button is mounted on the outer wall of the housing and can move back and forth; it is connected to the locking member through a transmission structure. In the initial state, the first locking structure and the second locking structure are engaged. When the push button is pushed, the push button drives the locking member to move along the axial direction of the scroll shaft through the transmission structure, causing the first locking structure and the second locking structure to disengage and the elastic member to deform. After the external force disappears, the elastic member returns to its original shape and drives the locking member to return to its original position, thereby causing the first locking structure and the second locking structure to re-engage.

[0009] Furthermore, the connection structure includes a plug shaft formed at one end of the reel, and a plug sleeve formed at one end of the locking member and plugged into the plug shaft. Preferably, the elastic element is a compression helical spring, which is installed inside the plug sleeve, with its two ends abutting against the plug shaft and the plug sleeve, respectively.

[0010] Furthermore, the circumferential limiting structure includes an outer circumferential limiting plane formed on the outer circumferential sidewall of the plug shaft, and an inner circumferential limiting plane formed on the inner circumferential sidewall of the plug sleeve. The outer circumferential limiting plane cooperates with the inner circumferential limiting plane to restrict the rotation of the locking member relative to the scroll.

[0011] Furthermore, the first snap-fit ​​structure includes a first plate fixedly connected to the inner wall of the mounting cavity; the second snap-fit ​​structure includes a second plate fixedly connected to the locking member. One of the first plate and the second plate is provided with a locking tooth, and the other plate is provided with a corresponding locking hole suitable for the locking tooth to be inserted; Preferably, the second plate is arranged around the outer periphery of the locking member, and the first plate corresponds to the second plate; a plurality of the locking teeth and the locking holes are respectively provided, and are evenly arranged in a circle around the rotation axis of the scroll.

[0012] Furthermore, the first plate has a through hole, and the other end of the locking member passes through the through hole and is clearance-fitted with the through hole; the outer casing has a mounting opening; the transmission structure includes: The first spherical part is formed at the other end of the locking member; A pusher is located inside the mounting cavity and is disposed opposite to the other end of the locking member; the pusher is fixedly connected to the push button via the mounting port and can move back and forth with the push button; the pusher is provided with a second spherical part that can rotatably cooperate with the first spherical part. The first spherical surface and the second spherical surface are a convex spherical surface and a concave spherical surface, respectively.

[0013] Furthermore, the first detachable fixed connection structure includes a guide member disposed on the left side wall of the housing. The guide member has a guide groove with an opening facing left and a T-shaped cross-section. The upper end of the guide groove is closed and the lower end is open. The second detachable fixed connection structure includes a fixing rod connected to the other end of the strap. The two ends of the fixing rod protrude from both sides of the strap in the width direction, forming a T-shaped structure with the strap. The fixing rod can enter the guide groove from the lower end.

[0014] Furthermore, it also includes an energy storage device connected to the reel for storing energy when the strap is pulled out and releasing energy when the strap is retracted to reset the strap. The energy storage device includes: A clockwork spring, one end of which is wound and fixed to the other end of the spool, and the other end is fixedly connected to the inner wall of the mounting cavity through a fixing structure.

[0015] Furthermore, including: The connecting rod is fixedly connected to the outer shell at one end, and has a clamping part at the bottom of the other end. The clamping part has a horizontal U-shaped structure, with the opening of the U-shaped structure facing the outer shell, and a screw hole is provided through the top of the U-shaped structure. The fastening bolt is screwed into the screw hole, and its lower end extends into the U-shaped structure, with a pressure plate at the end.

[0016] The technical solution provided by this utility model has the following advantages: This utility model discloses a bed-mounted binding and fixing device, comprising at least one fixing unit. The fixing unit includes a housing, a roller, a switch assembly, and a strap. The housing is adapted to be installed on a bed frame, and has an internal mounting cavity. A pull-out opening communicating with the mounting cavity is provided on the right side wall, and a first detachable fixing connection structure is provided on the left side wall. The roller is rotatably mounted in the mounting cavity via a support structure. The switch assembly is disposed between the roller and the housing, and has an unlocked state that allows the roller to rotate and a locked state that prevents the roller from rotating. One end of the strap is wound and fixed to the roller, and the other end extends out from the pull-out opening, and is provided with a second detachable fixing connection structure that can be matched and connected with the first detachable fixing connection structure.

[0017] In use, the number of fixing units can be determined first, and then each fixing unit can be installed in the designated position. The working process can vary depending on the number and arrangement of the fixing units. For a single fixing unit: The outer shell is fixed to the bed frame. The switch assembly is turned to the unlocked state, the strap is pulled out and wrapped around the target, then connected to the first detachable fixing connection structure on the fixing unit's outer shell. The switch assembly is then operated again to lock the strap length, completing the fixing. When using two fixing units, taking the torso as an example, the two fixing units (e.g., labeled A and B) are installed on the bed frame on both sides of the torso. The strap of A is wrapped around the torso (or around the top of the torso), and after adjusting the tightness, it is connected to the outer shell of B and locked. To ensure a secure binding, after performing the above steps, the strap of B can also be wrapped around the torso (or around the top of the torso), and after adjusting the tightness, it is connected to the outer shell of A and locked. When using three anchoring units, taking lower limb anchoring as an example, install the three anchoring units (e.g., labeled A, B, and C) on the bed frame. Unit A is positioned between the two lower limbs, while units B and C are positioned on the outer sides of the two lower limbs respectively. The straps of unit B can be wrapped around the target and connected to the outer shell of unit A, and the straps of unit A can be wrapped around the target and connected to the outer shell of unit C. Adjust the tightness and lock them all in place. Alternatively, for added security, after performing the above steps, the straps of unit C can be wrapped around the top of the lower limb and connected to the outer shell of unit B.

[0018] This utility model discloses a bed-mounted restraint device. Users can use a single restraint unit independently to restrain a single limb, or combine two or more restraint units, utilizing the interconnection of straps and the outer shell to form complex restraint patterns such as crisscrossing, encircling, and side-by-side, achieving more comprehensive and secure control over different parts of the body. The combined application of multiple restraint units greatly expands the device's applicability and restraint capabilities. The roller, switch assembly, and straps are integrated into a single shell, resulting in a compact structure that is easy to install and use. A locking mechanism fixes the strap length, replacing the insecure knotting method. The straps are connected to the outer shell via a detachable fixing structure, which is simpler and faster to operate than knotting, facilitating emergency handling. It avoids the reliability issues of knotting methods, reduces safety hazards caused by restraint failure, and also ensures the operational efficiency of medical personnel in emergency situations. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the prior art or specific embodiments of this utility model, the accompanying drawings used in the description of the prior art or specific embodiments are briefly introduced below.

[0020] Figure 1 This is a schematic diagram of the overall structure of the bed binding and fixing device of this utility model.

[0021] Figure 2 yes Figure 1 Another stereoscopic view.

[0022] Figure 3 It is a sectional view after the connecting rod, fastening bolts, and sleeve have been removed.

[0023] Figure 4 This is an exploded view of the bed binding and fixing device of this utility model.

[0024] Figure 5 yes Figure 4 Enlarged structural diagram of part A.

[0025] Figure 6 yes Figure 4 Enlarged structural diagram of section B.

[0026] Figure 7 It is an exploded view of the spool, elastic element, and locking element.

[0027] Figure 8 This is a schematic diagram of two sets of fixed units installed on the bed board.

[0028] Reference numerals: 01, bed board; 1, fixing unit; 11, outer shell; 110, mounting cavity; 1101, pull-out opening; 1102, mounting port; 1103, first sliding groove; 1104, second sliding groove; 1105, third sliding groove; 111, support plate; 1111, upper support plate; 1112, lower support plate; 11110, upper mounting hole; 11120, lower mounting hole; 112, push button; 114, first plate; 1140, through hole; 1141, locking hole; 115, pushing component; 1151, second spherical surface; 116, guide component; 1 161. Guide groove; 117. Top cover; 118. Housing; 12. Reel; 121. Insert shaft; 1211. Outer peripheral limiting plane; 122. Mounting shaft; 13. Strap; 131. Fixing rod; 14. Locking element; 141. Insert sleeve; 1411. Inner peripheral limiting plane; 142. Second plate; 1421. Clamping tooth; 1431. First spherical part; 144. Elastic element; 15. Clock spring; 151. Mounting housing; 16. Connecting rod; 161. Clamping part; 162. Screw hole; 17. Fastening bolt; 171. Pressure plate; 18. Soft sleeve. Detailed Implementation

[0029] To enable those skilled in the art to better understand this solution, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this application.

[0030] It should be noted that the terms "first," "second," etc., in the claims and specification of this application are used to distinguish similar objects and are not used to describe a specific order or sequence. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such as a process, method, system, product, or device that includes a series of steps or units, not limited to those steps or units explicitly listed, but may also include other steps or units not explicitly listed or inherent to these processes, methods, products, or devices.

[0031] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation. Furthermore, some of the above terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application according to the specific circumstances. In addition, the term "multiple" should mean two or more. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0032] The present application will now be described in detail with reference to the accompanying drawings and embodiments.

[0033] This embodiment provides a bed binding and securing device, such as... Figure 1-7 As shown, it includes: at least one fixing unit, the fixing unit including a housing 11, a scroll 12, a switch assembly, and a strap 13; the housing 11 is adapted to be installed on the bed frame, the housing 11 has an installation cavity 110 inside, a pull-out opening 1101 communicating with the installation cavity 110 on the right side wall, and a first detachable fixing connection structure on the left side wall; the scroll 12 is rotatably installed in the installation cavity 110 by a support structure; the switch assembly is disposed between the scroll 12 and the housing 11, having an unlocked state that allows the scroll 12 to rotate and a locked state that prevents the scroll 12 from rotating; one end of the strap 13 is wound and fixed on the scroll 12, and the other end extends out from the pull-out opening 1101, and is provided with a second detachable fixing connection structure that can be matched and connected with the first detachable fixing connection structure.

[0034] In this embodiment, the outer shell 11 can be designed as plastic or metal to house the internal components, which are mounted on the bed frame (such as bed rails, bed frame, bed board, etc.) via a fixing structure. There is an internal mounting cavity 110, and a pull-out opening 1101 is provided on the right side wall for the strap 13 to extend out. A first detachable fixing connection structure is provided on the left side wall for connection to a second detachable fixing connection structure located at the other end of the strap 13. One end of the strap 13 is fixed to the roller 12, and the other end extends from the pull-out opening 1101. A switch assembly controls the rotation of the roller 12. In the unlocked state, the roller 12 can rotate, and the strap 13 can be retracted or extended. In the locked state, the roller 12 is locked, and the length of the strap 13 is fixed.

[0035] In this embodiment, the number of fixing units 1 can be determined first as needed, and then each fixing unit 1 can be installed in a designated position. The working process can vary depending on the number and arrangement of the fixing units 1.

[0036] How to use a single fixing unit 1: Secure the outer casing 11 to the bed frame. Turn the switch assembly to the unlocked state, pull out the strap 13, wrap it around the target, and connect it to the first detachable fixing connection structure on the outer casing 11. Then, operate the switch assembly again to lock it, thereby locking the length of the strap 13 and completing the fixation. Different wrapping methods can be used for limbs and torso. For example, for limbs, the strap 13 can be wrapped around them and directly fixed to the outer casing 11; while for the torso, after wrapping the strap 13 around the torso, it can be wrapped around the bottom of the bed frame before being fixed to the outer casing 11, or it can be wrapped around the bottom of the bed frame first before being wrapped around the torso and fixed to the outer casing 11.

[0037] When using two fixing units 1, taking the torso as an example, the two fixing units (e.g., labeled A and B) are installed on the bed frame on both sides of the torso (e.g., Figure 8 (As shown), then wrap the straps of A around the torso (or around the top of the torso), adjust the tightness, and attach them to the shell of B, then lock them. To ensure a secure binding, after performing the above steps, you can also wrap the straps of B around the torso (or around the top of the torso), adjust the tightness, and attach them to the shell of A, then lock them.

[0038] When using three fixing units 1, taking lower limb fixation as an example, install the three fixing units (e.g., labeled A, B, and C) on the bed frame. Unit A is positioned between the two lower limbs, and units B and C are positioned on the outer sides of the two lower limbs respectively. The straps of unit B can be wrapped around the target and connected to the outer shell of unit A, and the straps of unit A can be wrapped around the target and connected to the outer shell of unit C. Adjust the tightness and lock them all in place. Alternatively, for added security, after performing the above steps, the straps of unit C can be wrapped around the top of the lower limb and connected to the outer shell of unit B.

[0039] This bed-mounted restraint device allows users to use a single restraint unit to constrain a single limb, or combine two or more units to form complex restraint patterns—crossing, encircling, or side-by-side—through the interconnection of straps and the outer shell, achieving more comprehensive and secure control over different parts of the body. The combined application of multiple restraint units greatly expands the device's applicability and restraint capabilities. Integrating the roller, switch assembly, and straps into a single shell results in a compact structure that is easy to install and use. A locking mechanism fixes the strap length, replacing the insecure knotting method. The straps are connected to the outer shell via a detachable fixing structure, which is simpler and faster than knotting, facilitating emergency handling. It avoids the reliability issues of knotting, reduces safety hazards caused by restraint failure, and ensures the operational efficiency of medical personnel in emergency situations. During the binding process, the operator can adjust the tightness as needed, and can pre-wrap the patient's body to prevent pressure sores, or use soft pads to separate the straps from the body to prevent pressure sores.

[0040] The bed-mounted binding and securing device of this embodiment, further, such as Figure 3 , Figure 4 As shown, the support structure includes two support plates 111, which are spaced apart within the mounting cavity 110; the two ends of the roller 12 are rotatably mounted on the two support plates 111.

[0041] In this embodiment, the two ends of the scroll 12 are rotatably mounted on the two support plates 111. For example, the support plates 111 may be provided with mounting holes, and the two ends of the scroll are mounted in the mounting holes (or mounted in the mounting holes via bearings). The support plates 111 may be designed as a split structure, such as an upper support plate 1111 and a lower support plate 1112, each provided with an upper mounting hole 11110 and a lower mounting hole 11120, respectively. The inner wall of the mounting cavity 110 may be provided with a first sliding groove 1103, and the left and right ends of the support plates 111 can cooperate with the first sliding groove 1103, thereby being detachably mounted inside the mounting cavity.

[0042] The bed-mounted binding and securing device of this embodiment, further, such as Figure 4As shown, the switch assembly includes a first snap-fit ​​mechanism, a locking member 14, an elastic member 144, and a push button 112; the first snap-fit ​​mechanism is fixedly connected to the inner wall of the mounting cavity 110; the locking member 14 is axially movable to one end of the scroll 12 through a connecting structure, and a circumferential limiting structure is provided between the locking member 14 and the scroll 12 to restrict their relative rotation; the locking member 14 is provided with a second snap-fit ​​mechanism, which is arranged opposite to the first snap-fit ​​mechanism along the axial direction of the scroll 12, and the two can be matched and snapped together to restrict the rotation of the locking member 14; the elastic member 144 is connected to the scroll 12 and the locking member 14 respectively, and has the function of driving the locking member 14 to move axially along the scroll 12. The push button 112 is movable on the outer wall of the housing 11 and connected to the locking member 14 through a transmission structure. In the initial state, the first and second locking structures are engaged. When the push button 112 is pushed, the push button 112 drives the locking member 14 to move along the axial direction of the scroll 12 through the transmission structure, causing the first and second locking structures to disengage and the elastic member 144 to deform. After the external force disappears, the elastic member 144 returns to its original shape and drives the locking member 14 back to its original position, thereby restoring the engagement between the first and second locking structures.

[0043] In this embodiment, initially, under the elastic force of the elastic element 144, the locking element 14 is pushed towards the first locking structure, allowing the second locking structure to successfully engage with the first locking structure. At this time, the locking element 14 cannot rotate with the scroll 12, thus preventing the scroll 12 from rotating, and the strap length is fixed. When the medical staff pushes the push button 112, through the transmission structure, the push button 112 applies an external force to overcome the elastic force of the elastic element 144, driving the locking element 14 to move along the axial direction of the scroll 12, causing the second locking structure to disengage from the first locking structure. During this process, the elastic element 144 deforms (is compressed). Once the engagement is released, the locking element 14 no longer prevents the scroll 12 from rotating. At this time, the scroll 12 can rotate freely, allowing the strap 13 to be pulled out (unrolled) or retracted. When the external force disappears (i.e., the push button 112 is released), the compressed elastic element 144 recovers its deformation, releasing its stored energy and pushing the locking element 14 back to its original position. After the locking element 14 returns to its original position, the second locking structure re-engages with the first locking structure, and the scroll 12 is locked again.

[0044] The bed-mounted binding and securing device of this embodiment, further, such as Figure 4-7As shown, the connection structure includes a plug shaft 121 formed at one end of the reel 12, and a plug sleeve 141 formed at one end of the locking member 14 and plugged into the plug shaft 121; preferably, the elastic member 144 is a compression helical spring, which is installed inside the plug sleeve 141 and its two ends abut against the plug shaft 121 and the plug sleeve 141 respectively.

[0045] In this embodiment, the plug sleeve 141 and the plug shaft 121 are plugged into each other, enabling rotational transmission but not restricting axial relative movement. The elastic element 144 is a compression coil spring, installed inside the plug sleeve 141, with its two ends abutting against the end of the plug shaft 121 and the inner bottom wall of the plug sleeve 141, respectively. The engagement between the plug shaft 121 and the plug sleeve 141 allows the locking element 14 to slide axially. When the push button 112 drives the locking element 14 to move away from the first locking structure, the plug sleeve 141 also moves accordingly, compressing the internal compression coil spring. When the push button 112 is released, the compression coil spring, due to its elastic deformation, applies a reverse force, pushing the plug sleeve 141 and the locking element 14 back to their original positions, restoring the locking state.

[0046] The bed-mounted binding and securing device of this embodiment, further, such as Figure 7 As shown, the circumferential limiting structure includes an outer circumferential limiting plane 1211 formed on the outer circumferential sidewall of the insertion shaft 121, and an inner circumferential limiting plane 1411 formed on the inner circumferential sidewall of the insertion sleeve 141. The outer circumferential limiting plane 1211 and the inner circumferential limiting plane 1411 cooperate to limit the rotation of the locking member 14 relative to the scroll 12.

[0047] In this embodiment, the outer peripheral limiting plane 1211 and the inner peripheral limiting plane 1411 cooperate (e.g., in close contact) to restrict the rotation of the locking member 14 relative to the scroll 12.

[0048] The bed-mounted binding and securing device of this embodiment, further, such as Figure 3 , Figure 4 As shown, the first snap-fit ​​structure includes a first plate 114 fixedly connected to the inner wall of the mounting cavity 110; the second snap-fit ​​structure includes a second plate 142 fixedly connected to the locking member 14. One of the first plate 114 and the second plate 142 is provided with snap teeth 1421, and the other is provided with snap holes 1141 suitable for the snap teeth 1421 to be inserted. Preferably, the second plate 142 is arranged around the outer periphery of the locking member 14, and the first plate 114 corresponds to the second plate 142. A plurality of snap teeth 1421 and snap holes 1141 are provided, and they are evenly arranged in a circle around the rotation axis of the scroll 12.

[0049] In this embodiment, a locking tooth 1421 is provided on one of the first plate 114 and the second plate 142, and a locking hole 1141 is provided on the other for the locking tooth to be engaged. The second plate 142 is arranged around the outer periphery of the locking member 14. The first plate 114 corresponds to the second plate 142. The number of locking teeth 1421 and locking holes 1141 can be provided in several ways, and the number of locking teeth and locking holes can be limited to three or more, for example, three, four, six, eight, nine, etc. They are evenly arranged in a circle around the rotation axis of the scroll 12. When the locking member 14 is moved by the push force applied by the elastic member 144, the locking hole 1141 on the second plate 142 aligns with and engages with the locking tooth 1421 on the first plate 114. Due to the evenly distributed locking teeth and locking holes, they form an "engagement", preventing the overall rotation of the locking member 14 and the scroll 12 connected to it. When the push button 112 pushes the locking member 14 axially through the transmission structure, the second plate 142 separates from the first plate 114, and the locking teeth 1421 disengage from the locking holes 1141. At this time, the locking is released, and the scroll 12 can rotate freely. After the push button 112 is released, the elastic member 144 pushes the locking member 14 back to its original position, the second plate 142 aligns with the first plate 114 again, and the locking teeth 1421 re-engage with the locking holes 1141, restoring the locked state.

[0050] In this embodiment, as Figure 4 As shown, the inner wall of the mounting cavity 110 can be provided with a second sliding groove 1104, and the left and right ends of the first plate 114 can cooperate with the second sliding groove 1104, so that it can be detachably installed inside the mounting cavity. The first plate 114 can also be designed as an upper and lower split structure.

[0051] In this embodiment of the bed-mounted binding and fixing device, the first plate 114 is provided with a through hole 1140, and the other end of the locking member 14 passes through the through hole 1140 and is clearance-fitted with the through hole 1140; the outer shell 11 is provided with an installation port 1102; the transmission structure includes a first spherical part 1431 and a pusher 115; the first spherical part 1431 is formed at the other end of the locking member 14; the pusher 115 is located inside the installation cavity 110 and is disposed opposite to the other end of the locking member 14; the pusher 115 is fixedly connected to the push button 112 through the installation port 1102 and can move back and forth with the push button 112; the pusher 115 is provided with a second spherical part 1151 that is rotatably fitted with the first spherical part 1431; the first spherical part 1431 and the second spherical part 1151 are respectively a convex spherical surface and a concave spherical surface.

[0052] In this embodiment, the other end of the locking member 14 (the end away from the spool 12) passes through the through hole 1140 and is clearance-fitted with the through hole 1140 (this allows the other end of the locking member 14 to slide within the through hole). The pusher 115 is spherically fitted with the other end of the locking member 14, and the two can rotate relative to each other. The pusher 115 can apply a thrust to the locking member 14, causing it to move axially and disengage from the latching state.

[0053] In this embodiment, as Figure 3-5 As shown, the outer casing 11 may include an upper cover 117 and a housing 118. The upper cover 117 is detachably fitted onto the housing 118. The mounting opening 1102 is opened on the upper cover 117. The left and right inner walls of the upper cover 117 may be provided with a third sliding groove 1105. The left and right ends of the push button 112 can cooperate with the third sliding groove 1105, so that it can be slidably installed in the mounting opening 1102.

[0054] In this embodiment of the bed binding and fixing device, the first detachable fixing connection structure includes a guide member 116 disposed on the left side wall of the outer casing 11. The guide member 116 has a guide groove 1161 with an opening facing left and a T-shaped cross-section. The upper end of the guide groove 1161 is closed and the lower end is open. The second detachable fixing connection structure includes a fixing rod 131 connected to the other end of the binding strap 13. The two ends of the fixing rod 131 protrude from both sides of the binding strap 13 in the width direction, forming a T-shaped structure with the binding strap 13. The fixing rod 131 can enter the guide groove 1161 from the lower end.

[0055] In this embodiment, the two ends of the fixing rod 131 protrude from both sides of the strap 13 in the width direction, forming a T-shaped structure with the strap (i.e., the length of the fixing rod 131 is greater than the width of the strap 13, and both ends protrude). The guide groove 1161 has a T-shaped cross-section, with the upper end closed to prevent the fixing rod 131 from coming out, and the lower end open to facilitate the insertion of the fixing rod 131. Because the guide groove 1161 is T-shaped and the upper end is closed, once the fixing rod 131 is inserted and moves upward (or after the strap is tightened), the fixing rod 131 will be stuck at the top of the guide groove 1161, preventing the fixing rod 131 from coming out of the guide groove 1161. When it is necessary to release the restraint, the strap 13 is loosened, and the fixing rod 131 can be pulled out from the open lower end of the guide groove 1161 to complete the disassembly.

[0056] In this embodiment, multiple sets of guide grooves 1161 can be arranged on the guide member 116 from top to bottom. In this way, one guide member 116 can be detachably connected to multiple fixing rods 131, thereby improving the flexibility of binding and fixing.

[0057] The bed-mounted binding and securing device of this embodiment, such as Figure 4As shown, it further includes an energy storage device connected to the spool 12, used to store energy when the strap 13 is pulled out and release energy when the strap 13 is retracted to reset the strap 13. The energy storage device includes a spring 15, one end of which is wound and fixed to the other end of the spool 12, and the other end is fixedly connected to the inner wall of the mounting cavity 110 through a fixing structure.

[0058] In this embodiment, a mounting shaft 122 is formed at the other end of the spool 12. One end (inner end) of the spring 15 is wound and fixed to the mounting shaft 122 at the other end of the spool 12, and the other end (outer end) is fixedly connected to the inner wall of the mounting cavity 110 through a mounting structure. When the strap 13 is pulled out, the spool 12 rotates accordingly. At this time, the end fixed to the mounting shaft 122 causes the spring 15 to deform (store energy). When the spool 12 is unlocked and allowed to rotate, the spring 15 will automatically recover its deformation under the action of the stored elastic potential energy, thereby driving the spool 12 to rotate in the opposite direction and automatically retracting the strap 13.

[0059] In this embodiment, the fixing structure can be a mounting shell 151, which is fixedly installed inside the mounting cavity 110 and covers the outside of the spring 15. The other end of the spring 15 is fixedly connected to the inner wall of the mounting shell 151.

[0060] The bed-mounted binding and securing device of this embodiment, further, such as Figure 1-4 As shown, it includes a connecting rod 16 and a fastening bolt 17; one end of the connecting rod 16 is fixedly connected to the outer shell 11, and the bottom of the other end is provided with a clamping part 161. The clamping part 161 is a horizontally placed U-shaped structure, the opening of the U-shaped structure faces the outer shell 11, and a screw hole 162 is provided through the top of the U-shaped structure; the fastening bolt 17 is screwed to the screw hole 162, the lower end extends into the U-shaped structure, and the end is provided with a pressure plate 171.

[0061] In this embodiment, one end of the connecting rod 16 is fixedly connected to the outer casing 11 (e.g., connected to the outer wall of the outer casing by screws, adhesive, welding, etc.), and the other end has a clamping part 161 at its bottom. The clamping part 161 is a horizontally placed U-shaped structure. The opening of the U-shaped structure faces the outer casing 11 and can "clamp" the bed board 01. In use, the clamping part 161 clamps the bed board 01, the fastening bolt 17 is screwed in, and the pressure plate 171 presses it onto the bed board 01.

[0062] In this embodiment, as Figure 4 As shown, the bottom inner wall of the U-shaped structure is equipped with an anti-slip structure, and the lower end face of the pressure plate 171 is also equipped with an anti-slip structure, thereby improving the firmness of the fixation to the bed board. The anti-slip structure can be a rubber pad or anti-slip stripes.

[0063] The bed-mounted binding and securing device of this embodiment, such as Figure 4 As shown, to prevent injury to the patient, the outer shell 11 and the connecting rod 16 may be covered with a soft sleeve 18 made of flexible material.

[0064] Clinically, maintaining a semi-recumbent position is an important basic treatment measure for patients with respiratory failure, acute respiratory distress syndrome, and chronic obstructive pulmonary disease. This position can effectively improve diaphragmatic activity, reduce the work of breathing, and decrease the risk of aspiration. However, during clinical implementation, patients are prone to slipping or falling, and frequent changes in position may interfere with the effectiveness of mechanical ventilation (such as endotracheal tube displacement and airway pressure fluctuations). Therefore, professional medical staff usually assist patients in maintaining a semi-recumbent position, which undoubtedly increases the workload of medical staff significantly.

[0065] The bed-mounted binding and securing device of this embodiment, such as Figure 8 As shown, two fixing units 1 can be symmetrically installed at the head of the bed, positioned on either side of the patient's body. The outer shell 11 and the soft cover 18 have a certain height (perpendicular to the bed board), and their width matches the patient's armpits, providing support and preventing slippage. They also limit the patient's lateral movement between the two fixing units 1, preventing them from tilting to either side. Then, using the same binding and fixing method as described above when using the two fixing units 1, the patient can be restrained to some extent, thus helping them maintain a sitting or lying position.

[0066] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this innovative technical solution.

Claims

1. A bed binding and securing device, characterized in that, Includes at least one fixing unit, said fixing unit comprising: The outer shell (11) is suitable for installation on the bed frame. The outer shell (11) has an installation cavity (110) inside, a pull-out opening (1101) communicating with the installation cavity (110) on the right side wall, and a first detachable fixed connection structure on the left side wall. The spool (12) is rotatably mounted in the mounting cavity (110) by means of a support structure; A switch assembly, disposed between the spool (12) and the housing (11), has an unlocked state that allows the spool (12) to rotate and a locked state that prevents the spool (12) from rotating; The strap (13) has one end wound and fixed on the spool (12), and the other end extends out from the pull-out port (1101), and is provided with a second detachable fixed connection structure that can be matched and connected with the first detachable fixed connection structure.

2. The bed binding and fixing device according to claim 1, characterized in that, The support structure includes: There are two support plates (111) spaced apart in the mounting cavity (110); the two ends of the roller (12) are rotatably mounted on the two support plates (111).

3. The bed binding and fixing device according to claim 1, characterized in that, The switching assembly includes: The first snap-fit ​​structure is fixedly connected to the inner wall of the mounting cavity (110); The locking member (14) is axially movable to one end of the scroll (12) through a connecting structure. A circumferential limiting structure is provided between the locking member (14) and the scroll (12) to restrict their relative rotation. The locking member (14) is provided with a second snap-fit ​​structure. The second snap-fit ​​structure and the first snap-fit ​​structure are arranged opposite to each other along the axial direction of the scroll (12), and the two can be matched and snapped together to restrict the rotation of the locking member (14). The elastic element (144) is connected to the spool (12) and the locking element (14) respectively, and has the tendency to drive the locking element (14) to move axially along the spool (12) so that the second snap-fit ​​structure snaps into the first snap-fit ​​structure; The push button (112) is movable back and forth on the outer wall of the housing (11) and is connected to the locking member (14) through a transmission structure; In the initial state, the first locking structure is engaged with the second locking structure; when the push button (112) is pushed, the push button (112) drives the locking member (14) to move along the axial direction of the scroll (12) through the transmission structure, so that the first locking structure and the second locking structure are disengaged, and the elastic member (144) is deformed; after the external force disappears, the elastic member (144) recovers its deformation and drives the locking member (14) to return to its position, thereby making the first locking structure and the second locking structure engage again.

4. The bed binding and fixing device according to claim 3, characterized in that, The connection structure includes a plug shaft (121) formed at one end of the spool (12) and a plug sleeve (141) formed at one end of the locking member (14) and plugged into the plug shaft (121). The elastic element (144) is a compression helical spring, which is installed inside the plug sleeve (141) and its two ends abut against the plug shaft (121) and the plug sleeve (141) respectively.

5. The bed binding and fixing device according to claim 4, characterized in that, The circumferential limiting structure includes an outer circumferential limiting plane (1211) formed on the outer circumferential sidewall of the plug shaft (121) and an inner circumferential limiting plane (1411) formed on the inner circumferential sidewall of the plug sleeve (141). The outer circumferential limiting plane (1211) and the inner circumferential limiting plane (1411) cooperate to limit the rotation of the locking member (14) relative to the scroll (12).

6. The bed binding and fixing device according to claim 4, characterized in that, The first snap-fit ​​structure includes a first plate (114) fixedly connected to the inner wall of the mounting cavity (110); the second snap-fit ​​structure includes a second plate (142) fixedly connected to the locking member (14). One of the first plate (114) and the second plate (142) is provided with a locking tooth (1421), and the other is provided with a corresponding locking hole (1141) suitable for the locking tooth (1421) to be inserted. The second plate (142) is arranged around the outer periphery of the locking member (14), and the first plate (114) corresponds to the second plate (142); the locking teeth (1421) and the locking holes (1141) are respectively provided in a plurality of numbers, and are evenly arranged in a circle around the rotation axis of the scroll (12).

7. The bed binding and fixing device according to claim 6, characterized in that, The first plate (114) has a through hole (1140), and the other end of the locking member (14) passes through the through hole (1140) and is clearance-fitted with the through hole (1140); the outer shell (11) has a mounting port (1102); the transmission structure includes: The first spherical part (1431) is formed at the other end of the locking member (14); The pusher (115) is located inside the mounting cavity (110) and is disposed opposite to the other end of the locking member (14); the pusher (115) is fixedly connected to the push button (112) through the mounting port (1102) and can move back and forth with the push button (112); the pusher (115) is provided with a second spherical part (1151) that can rotatably cooperate with the first spherical part (1431). The first spherical surface (1431) and the second spherical surface (1151) are a convex spherical surface and a concave spherical surface, respectively.

8. The bed binding and fixing device according to claim 1, characterized in that, The first detachable fixed connection structure includes a guide (116) disposed on the left side wall of the outer shell (11). The guide (116) is provided with a guide groove (1161) with an opening facing left and a cross-section in the shape of a T. The upper end of the guide groove (1161) is closed and the lower end is open. The second detachable fixed connection structure includes a fixing rod (131) connected to the other end of the strap (13). The two ends of the fixing rod (131) protrude from both sides of the strap (13) in the width direction, forming a T-shaped structure with the strap (13). The fixing rod (131) can enter the guide groove (1161) from the lower end.

9. The bed binding and fixing device according to claim 1, characterized in that, It also includes an energy storage device connected to the reel (12) for storing energy when the strap (13) is pulled out and releasing energy when the strap (13) is retracted to reset the strap (13). The energy storage device includes: A spring (15) is wound and fixed at one end on the other end of the spool (12), and the other end is fixedly connected to the inner wall of the mounting cavity (110) through a fixing structure.

10. The bed binding and fixing device according to claim 1, characterized in that, include: The connecting rod (16) is fixedly connected to the outer shell (11) at one end and has a clamping part (161) at the bottom of the other end. The clamping part (161) is a horizontal U-shaped structure with the opening of the U-shaped structure facing the outer shell (11). A screw hole (162) is opened through the top of the U-shaped structure. The fastening bolt (17) is screwed into the screw hole (162), with its lower end extending into the U-shaped structure and a pressure plate (171) at the end.

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