CN216257950U - Lifting adjusting guardrail and nursing bed - Google Patents

Abstract

The utility model provides a lifting adjusting guardrail and a nursing bed, which can effectively protect the whole bed side, are convenient to open and occupy less space. The nursing bed comprises the lifting adjusting guardrail. This lift adjustment guardrail is arranged in setting up the side at the bed body, in this lift adjustment guardrail: two ends of the top cross rod are respectively connected to the tops of the pair of first longitudinal pipes; the pair of first longitudinal pipes are respectively inserted into the pair of second longitudinal pipes and can move longitudinally in the second longitudinal pipes; the first locking mechanism has a locking state and an unlocking state, and can limit the longitudinal movement between the first longitudinal pipe and the second longitudinal pipe in the locking state; the unlocking mechanism is used for releasing the locking state of the first locking mechanism; the protection mechanism can stretch out and draw back along with the lift of lift adjustment guardrail, and protection mechanism is used for sheltering from the side of lift adjustment guardrail to prevent that human body position from being blocked into lift adjustment guardrail or between lift adjustment guardrail and the bed body.

Description

Lifting adjusting guardrail and nursing bed

Technical Field

The utility model relates to the technical field of bed guardrails, in particular to a lifting adjusting guardrail and a nursing bed.

Background

Hospital beds, nursing beds, child beds, etc. are usually provided with guardrails on the sides to prevent the patient or child from falling. To facilitate the getting on and off of a patient or a child and the care of the patient or the child by a caretaker, the guard rail is usually designed to be openable. Currently, the existing guardrails include plug-in type guardrails, transverse swinging type guardrails and longitudinal rotating type guardrails.

The plug-in guardrail has a simple structure, does not move relative to the bed in the using process, and needs to occupy extra storage space in the non-use state. The transverse swinging type guardrail and the longitudinal rotating type guardrail swing oppositely to the bed in the using process, and are provided with locking mechanisms, so that the structure is slightly complicated. The transverse swing type guard bar can transversely swing in the using process, the space at the lower part of the bed can be occupied, and meanwhile, the protection height is limited. The longitudinal rotary guardrail needs to reserve a certain space at the bed head or the bed tail due to longitudinal swing of the longitudinal rotary guardrail, cannot play a protection function on the whole bed side, and is limited in protection space.

SUMMERY OF THE UTILITY MODEL

One object of the present invention is to provide a lifting adjusting guardrail which can effectively protect the whole bedside, is easy to open and occupies less space.

In order to realize the lift adjustment guardrail of purpose for the side of setting at the bed body, including top horizontal pole, a pair of first indulges the pipe, a pair of second indulges pipe, first locking mechanism, release mechanism and protection machanism. Two ends of the top cross rod are respectively connected to the tops of the pair of first longitudinal pipes; the pair of first longitudinal pipes are respectively inserted into the pair of second longitudinal pipes and can move longitudinally in the second longitudinal pipes; the first locking mechanism has a locked state in which longitudinal movement between the first longitudinal tube and the second longitudinal tube is able to be restricted and an unlocked state in which the first locking mechanism is able to restrict longitudinal movement between the first longitudinal tube and the second longitudinal tube; the unlocking mechanism is used for releasing the locking state of the first locking mechanism; the protection mechanism can stretch out and draw back along with the lift of lift adjustment guardrail, protection mechanism is used for sheltering from the side of lift adjustment guardrail to prevent that human position from being blocked in the lift adjustment guardrail or the lift adjustment guardrail with between the bed body.

In one or more embodiments of the lifting adjustment barrier, the lifting adjustment barrier further includes a middle cross bar, both ends of the middle cross bar are respectively connected to the pair of second longitudinal tubes, the protection mechanism includes a first protection member and a second protection member, the first protection member and the second protection member are longitudinally movably connected, the top end of the first protection member is connected to the top cross bar, the second protection member is connected to the middle cross bar, and the bottom end of the second protection member is not higher than the bed surface of the bed.

In one or more embodiments of the lift adjustment barrier, the second guard member is longitudinally movably connected to the intermediate cross bar.

In one or more embodiments of the lifting adjusting guardrail, the sidewall of the second longitudinal pipe is provided with a first positioning hole, at least one first positioning hole is arranged in the middle or the top of the second longitudinal pipe, the lifting adjusting guardrail further comprises a first fixing sleeve, the first fixing sleeve is connected to the bottom of the first longitudinal pipe, the first locking mechanism comprises a first positioning pin and a first unlocking piece, the first positioning pin can be transversely telescopically inserted into the first fixing sleeve, the first positioning pin is used for being inserted into the first positioning hole in an extending state to limit the longitudinal movement between the first longitudinal pipe and the second longitudinal pipe, and the first unlocking piece can be longitudinally movably inserted into the first fixing sleeve and is used for driving the first positioning pin to retract and limit the maximum extending length of the first positioning pin.

In one or more embodiments of the lifting adjustment fence, the second longitudinal pipe includes a longitudinal pipe body and a fillet, the fillet is disposed on at least a part of an inner wall of the longitudinal pipe body, the fillet is made of a resin material, the plurality of first positioning holes are longitudinally disposed at intervals on the fillet, and the first positioning holes are disposed only on the fillet.

In one or more embodiments of the lifting adjusting barrier, the first fixing sleeve includes a first outer circumferential portion and a first protrusion, the first outer circumferential portion is located between an outer wall of the first longitudinal pipe and an inner wall of the second longitudinal pipe to guide and lubricate relative movement of the first longitudinal pipe and the second longitudinal pipe, and the first protrusion is located inside the first longitudinal pipe to guide movement of the first positioning pin and the first unlocking member.

In one or more embodiments of the lifting adjusting guardrail, the lifting adjusting guardrail further comprises a first guide sleeve, the first guide sleeve is connected to the top of the second longitudinal pipe and arranged between the outer wall of the first longitudinal pipe and the inner wall of the second longitudinal pipe, and is used for guiding and lubricating the relative movement between the first longitudinal pipe and the second longitudinal pipe and stopping the first fixing sleeve to prevent the first longitudinal pipe from being separated from the second longitudinal pipe.

In one or more embodiments of lift adjustment guardrail, first locking mechanism still includes first spring and second spring, first locating pin is provided with first inclined plane, first deblocking piece is provided with the second inclined plane, the second inclined plane be used for with first inclined plane cooperatees, in order to pass through the downward movement messenger of first deblocking piece first locating pin withdrawal, the elasticity of first spring is used for making first locating pin stretches out first fixed cover, the elasticity of second spring is used for making first deblocking piece upwards stretches out.

In one or more embodiments of the lifting adjustment barrier, the lifting adjustment barrier further comprises a pair of third longitudinal tubes and a second locking mechanism, wherein: the pair of second longitudinal pipes are respectively inserted into the pair of third longitudinal pipes and can move longitudinally in the third longitudinal pipes; the second locking mechanism has a locked state in which it is able to restrict longitudinal movement between the second longitudinal tube and the third longitudinal tube and an unlocked state; when the first longitudinal pipe moves downwards to the bottom of the second longitudinal pipe, the first locking mechanism releases the locking state of the second locking mechanism.

In one or more embodiments of the lifting adjusting guardrail, a second positioning hole is formed in a side wall of the third longitudinal pipe, the second positioning hole is formed in the middle or the top of the third longitudinal pipe, the lifting adjusting guardrail further comprises a second fixing sleeve, the second fixing sleeve is connected to the bottom of the second longitudinal pipe, the second locking mechanism comprises a second positioning pin and a second unlocking piece, the second positioning pin can be transversely and telescopically inserted into the second fixing sleeve, the second positioning pin is used for being inserted into the second positioning hole in an extending state to limit longitudinal movement between the second longitudinal pipe and the third longitudinal pipe, and the second unlocking piece is longitudinally movably inserted into the second fixing sleeve and used for driving the second positioning pin to retract and limit the maximum extending length of the second positioning pin.

In one or more embodiments of the lifting adjustment barrier, the second harness includes a second peripheral portion and a second protrusion, the second peripheral portion is located between an outer wall of the second longitudinal tube and an inner wall of the third longitudinal tube for guiding and lubricating relative movement of the second longitudinal tube and the third longitudinal tube, and the second protrusion is located inside the second longitudinal tube for guiding movement of the second positioning pin and the second unlocking member.

In one or more embodiments of the lifting adjusting guardrail, the lifting adjusting guardrail further comprises a second guiding sleeve, the second guiding sleeve is connected to the top of the third longitudinal pipe and arranged between the outer wall of the second longitudinal pipe and the inner wall of the third longitudinal pipe, and is used for guiding and lubricating the relative movement between the second longitudinal pipe and the third longitudinal pipe and stopping the second fixing sleeve to prevent the second longitudinal pipe from being separated from the third longitudinal pipe.

In one or more embodiments of lift adjustment guardrail, second locking mechanism still includes third spring and fourth spring, the second locating pin is provided with the third inclined plane, the second unlocking piece is provided with the fourth inclined plane, the fourth inclined plane be used for with the third inclined plane cooperatees, in order to pass through the downward movement messenger of second unlocking piece the second locating pin withdrawal, the elasticity of third spring is used for making the second locating pin stretches out the fixed cover of second, the elasticity of fourth spring is used for making the second unlocking piece upwards stretches out.

In one or more embodiments of the lifting adjusting guardrail, the unlocking mechanism includes an unlocking button for driving the first unlocking member to move downwards, so as to drive the first positioning pin to retract, so as to release the locking state of the first locking mechanism; the top horizontal pole includes button guide way, fifth spring, spring backstop portion and indulges tub of connecting portion, the button guide way is used for holding unlock button and for unlock button's removal provides the direction, unlock button passes through fifth spring with spring backstop portion is movably connected, the elasticity of fifth spring is used for making unlock button upwards stretches out, indulge tub of connecting portion be used for with first indulge tub of fixed connection.

In one or more embodiments of the lift adjustment barrier, the top rail includes a handle that provides the button guide slot and a linkage that supports the handle and provides the spring stop and the longitudinal tube connection.

This lift adjustment guardrail can rise to higher height when using, plays better guard action, can contract to lower height when not using, and occupation space is less, and can satisfy multiple user demand to can prevent that human position from being blocked in this lift adjustment guardrail, or by the card between this lift adjustment guardrail and the bed body, lead to personnel to be hindered or damage the lift adjustment guardrail by the clamp. The lifting adjusting guardrail is convenient to operate, safe, reliable, simple in structure and easy to machine, manufacture and assemble.

Another object of the present invention is to provide a nursing bed, the guard rail of which can effectively protect the whole bed side, and is easy to open and occupies less space.

To achieve the purpose, the nursing bed comprises the lifting adjusting guardrail.

This nursing bed can play good guard action to whole bedside through adopting this lift adjustment guardrail, can shrink this lift adjustment guardrail to lower height when not using, and occupation space is less, and can satisfy multiple user demand, the simple operation, safe and reliable.

Drawings

The above and other features, properties and advantages of the present invention will become more apparent from the following description of the embodiments with reference to the accompanying drawings, in which:

fig. 1 is a perspective view of a care bed according to one embodiment.

Fig. 2 is a schematic front view of a care bed according to one embodiment.

Fig. 3 is an exploded schematic view of the elevation adjustment fence of embodiment 1.

Fig. 4 is a partial schematic view at a in fig. 3.

Fig. 5 is a partially sectional schematic view of the elevation adjustment fence of embodiment 1.

Fig. 6 is a schematic view of a contracted state of the elevation adjustment fence of embodiment 1.

Fig. 7 is a schematic view of the deployed state of the elevation adjustment fence of embodiment 1.

Fig. 8 is an exploded schematic view of the elevation adjustment fence of embodiment 2.

Fig. 9 is a partial schematic view at B in fig. 8.

Fig. 10 is a partially sectional schematic view of the elevation adjustment fence of embodiment 2.

Fig. 11 is a schematic view of a contracted state of the elevation adjustment fence of embodiment 2.

Fig. 12 is a schematic view of the deployed state of the elevation adjustment fence of embodiment 2.

Detailed Description

The following discloses many different embodiments or examples for implementing the subject technology described. Specific examples of components and arrangements are described below to simplify the present disclosure, but these are merely examples and do not limit the scope of the utility model. It is to be noted that the drawings are designed solely as examples and are not to scale and should not be construed as limiting the scope of the utility model as it may be practiced. Furthermore, some of the features, structures, or characteristics of one or more embodiments of the present application may be combined as appropriate.

A nursing bed 2 according to an embodiment of the present invention is shown in fig. 1 and 2, the nursing bed 2 includes a bed body 200 and a lifting adjusting fence 1, and the lifting adjusting fence 1 is disposed at a side of the bed body 200. The lifting adjusting guardrail 1 can be lifted to protect the personnel on the nursing bed 2 and can be lowered to facilitate the falling of the personnel on the nursing bed 2 or the nursing of the nursing personnel. The lifting adjustment barrier 1 will be described below with reference to two specific embodiments.

Example 1:

a lifting adjustment fence 1 according to embodiment 1 of the present invention, as shown in fig. 3 to 7, includes a top cross bar 10, a pair of first longitudinal pipes 11, a pair of second longitudinal pipes 12, an intermediate cross bar 14, a first locking mechanism 15, a first fixing sheath 16, a first guide sheath 17, an unlocking mechanism 18, a guard mechanism 23, a mounting seat 19, and an elastic cylindrical pin 24.

The pair of first longitudinal pipes 11 are inserted into the pair of second longitudinal pipes 12, respectively, and are longitudinally movable within the second longitudinal pipes 12 to adjust the height of the elevation adjustment fence 1. The top cross bar 10 has both ends connected to the tops of the pair of first longitudinal pipes 11, respectively, and the middle cross bar 14 has both ends connected to the pair of second longitudinal pipes 12, respectively.

The guard mechanism 23 includes a first guard 231 and a second guard 232. The top end of the first prevention piece 231 is connected to the top rail 10, and the second prevention piece 232 is connected to the middle rail 14. The first prevention piece 231 is provided with a first sliding slot 2311 extending in the longitudinal direction, the second prevention piece 232 is provided with a second sliding slot 2321 extending in the longitudinal direction, the first sliding slot 2311 and the second sliding slot 2321 are connected by a first sliding pin 233, so that the first prevention piece 231 and the second prevention piece 232 are longitudinally movably connected together, so that the protection mechanism 23 can extend and contract along with the lifting of the lifting adjusting guardrail 1, and in the extending and contracting process of the protection mechanism 23, the bottom end of the second protection part 232 is not higher than the bed surface 201 of the nursing bed 2 all the time, so as to shield the side surface of the lifting adjusting guardrail 1 by the protection mechanism 23, prevent the hands, feet, knees or other body parts of the nursing bed 2 or the nursing staff from being clamped into the lifting adjusting guardrail 1, or is caught between the elevation adjustment fence 1 and the bed body 200 of the nursing bed 2, causing a person to be injured by being caught or/and damaging the elevation adjustment fence 1.

The second prevention piece 232 is further provided with a third sliding slot 2322 extending in the longitudinal direction, and the second prevention piece 232 is connected to the intermediate crossbar 14 by the second sliding pin 234 passing through the third sliding slot 2322 so that the second prevention piece 232 can move longitudinally with respect to the intermediate crossbar 14.

Thus, by providing the first, second, and third slide grooves 2311, 2321, and 2322, it is possible to shorten the longitudinal dimensions of the first and second prevention pieces 231 and 232 and to obtain a large extension and contraction range of the prevention mechanism 23, thereby reducing the weight of the elevation adjustment fence 1.

In order to ensure sufficient protection for the human body, a narrow gap may be left between the first and second shielding members 231, 232 and the first and second longitudinal pipes 11, 12, or/and the first and second shielding members 231, 232 may be provided with through holes having a smaller size to facilitate ventilation.

The middle rail 14 serves to increase the strength of the elevation adjustment fence 1 and support the second prevention piece 232, and one or more middle rails 14 may be provided according to the use requirement of the elevation adjustment fence 1. In another embodiment, the second guard 232 is coupled to the second side rail 12 such that the center cross bar 14 may be eliminated.

The mounting seat 19 is provided with a first mounting seat hole 191 and a second mounting seat hole 192, the second longitudinal pipe 12 is provided with a mounting seat connecting hole 124, and the first mounting seat hole 191 and the mounting seat connecting hole 124 are connected by a mounting seat fastener 193 to connect the mounting seat 19 to the second longitudinal pipe 12. The mounting 19 mounts the elevation adjustment fence 1 to the bed 200 through the second mounting hole 192 and a fastener (not shown).

In the description of the present invention, the orientation or positional relationship indicated by the orientation words "upper", "lower", "top", "bottom", "lateral", "longitudinal", and the like is based on the orientation or positional relationship shown in the drawings. It should be understood that the terms "first," "second," and the like, are used for limiting the components, are used for convenience in distinguishing between corresponding components, and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature.

Referring to fig. 3 to 5, the sidewall 120 of the second longitudinal tube 12 is provided with a plurality of first positioning holes 121, the plurality of first positioning holes 121 are longitudinally spaced apart, and at least one first positioning hole 121 is disposed in the middle or at the top of the second longitudinal tube 12. The first locking mechanism 15 includes a first positioning pin 152, a first unlocking member 153, a first spring 156, and a second spring 157. The first lock mechanism 15 has a locked state and an unlocked state, and when the first positioning pin 152 is engaged with the first positioning hole 121, the first lock mechanism 15 is in the locked state, thereby restricting the longitudinal movement between the first longitudinal pipe 11 and the second longitudinal pipe 12. The elevation adjustment fence 1 can be maintained at different heights by inserting the first aligning pins 152 into different first aligning holes 121, which will be described later. It is understood that the number of the first positioning holes 121 shown in fig. 3 to 5 is merely an example.

In another embodiment, the second vertical pipe 12 includes a vertical pipe body (not shown) and a fillet (not shown), the vertical pipe body is a tubular structure, the fillet is disposed on at least a part of the inner wall of the vertical pipe body, the plurality of dense first positioning holes 121 are longitudinally disposed on the fillet at small intervals, the first positioning holes 121 are disposed only on the fillet, the vertical pipe body is not disposed with the first positioning holes 121, that is, at least a part of the sidewall 120 of the second vertical pipe 12 is a double-layer structure including an inner layer provided by the fillet and an outer layer provided by the vertical pipe body, and the first positioning holes 121 penetrate only through the inner layer. From this, can set up more first locating hole 121 to make this lift adjustment guardrail 1 have more high fender position, with satisfy multiple user demand, and can not weaken the intensity and the rigidity of second vertical pipe 12. The molding is made of a resin material to reduce the weight of the elevation regulation fence 1.

In still another embodiment, the number of the first positioning holes 121 is only one, and is provided at the middle or top of the second longitudinal pipe 12, so that the elevation adjustment fence 1 is maintained in the unfolded state by inserting the first positioning pins 152 into the first positioning holes 121 when the elevation adjustment fence 1 is unfolded upward.

With continued reference to fig. 3 to 5, the first fixing sleeve 16 is connected to the bottom of the first longitudinal pipe 11, and the first fixing sleeve 16 includes a first outer peripheral portion 161, a first protrusion 162, and a first connecting wall 163 connecting the first outer peripheral portion 161 and the first protrusion 162.

The first outer peripheral portion 161 is located between the outer wall of the first longitudinal pipe 11 and the inner wall of the second longitudinal pipe 12, and is used for guiding and lubricating the relative movement between the first longitudinal pipe 11 and the second longitudinal pipe 12, and playing a role in shock absorption and noise reduction.

The outer wall surface of the first outer circumferential portion 161 is provided with a plurality of first outer ribs 164 extending in the longitudinal direction, and the first outer ribs 164 are movably in contact with the inner wall of the second longitudinal pipe 12 to perform a guiding function and reduce a contact area between the first outer circumferential portion 161 and the second longitudinal pipe 12 to reduce sliding resistance between the first outer circumferential portion 161 and the second longitudinal pipe 12.

Optionally, the first fixing cuff 16 is made of nylon (PA) material to further reduce the sliding resistance between the first outer peripheral portion 161 and the second longitudinal tube 12 and to reduce the weight of the lifting adjustment guardrail 1.

The first protrusion 162 is located inside the first longitudinal tube 11, and is used for supporting the first positioning pin 152 and the first unlocking member 153 and providing a guide for the movement of the first positioning pin 152 and the first unlocking member 153. The first protrusion 162 includes a first stopper pin guide groove 165, a first unlocking member guide groove 166, and a first stopper groove 167.

The first positioning pin 152 is laterally telescopically inserted into the first positioning pin guide groove 165, and the first positioning pin guide groove 165 provides a guide for movement of the first positioning pin 152. The first positioning pin 152 is telescopically connected to the first protrusion 162 through a first spring 156, the first spring 156 is a compression spring, and two ends of the first positioning pin 152 respectively abut against the first end surface 1521 of the first positioning pin 152 and the inside of the first protrusion 162. The elastic force of the first spring 156 is used to extend the first positioning pin 152 out of the first fixing sleeve 16, and the first positioning pin 152 is used to be inserted into the first positioning hole 121 in the extended state, so that the first locking mechanism 15 is in a locking state, thereby limiting the longitudinal movement between the first longitudinal pipe 11 and the second longitudinal pipe 12.

The first positioning pin 152 is provided with a first inclined surface 154, the first unlocking member 153 is provided with a second inclined surface 155, and the first inclined surface 154 and the second inclined surface 155 may be inclined planes or curved surfaces. The normal direction of the first inclined surface 154 is directed obliquely upward and inclined toward the extending direction of the first positioning pin 152, the normal direction of the second inclined surface 155 is directed obliquely downward, and the first inclined surface 154 is opposed to the second inclined surface 155. Therefore, when the first unlocking member 153 moves downwards, the first inclined surface 154 can be pushed by the second inclined surface 155, and the first positioning pin 152 is driven to retract, so that the locking state of the first locking mechanism 15 is released, and the structure is simple and the transmission is reliable.

The first unlocking member 153 is longitudinally movably inserted into the first unlocking member guide groove 166, and the first unlocking member guide groove 166 provides a guide for the movement of the first unlocking member 153. The first unlocking member 153 is telescopically connected to the first protrusion 162 through a second spring 157, the second spring 157 is a compression spring, and two ends of the second spring are respectively abutted against the first blocking portion 1531 of the first unlocking member 153 and the first protrusion 162. The elastic force of the second spring 157 serves to extend the first unlocking member 153 upward so as to maintain the first locking mechanism 15 in a locked state when the first unlocking member 153 is not pressed downward.

The first unlocking piece 153 is further provided with a first limiting boss 1532, the first limiting boss 1532 is used for being inserted into the first limiting groove 167 of the first protrusion 162 to limit the longitudinal moving range of the first unlocking piece 153, so as to prevent the first unlocking piece 153 from being released from the first protrusion 162, and further, the first unlocking piece 153 can limit the maximum extending length of the first positioning pin 152, so as to prevent the first positioning pin 152 from being released from the first protrusion 162.

With continued reference to fig. 3 to 5, a first guiding sleeve 17 is fixedly connected to the top of the second longitudinal pipe 12, the first guiding sleeve 17 is disposed between the outer wall of the first longitudinal pipe 11 and the inner wall of the second longitudinal pipe 12, and is used for guiding and lubricating the relative movement between the first longitudinal pipe 11 and the second longitudinal pipe 12, and playing a role in damping and reducing noise, and the first guiding sleeve 17 is further used for stopping the first fixing sleeve 16 to prevent the first longitudinal pipe 11 from coming off the second longitudinal pipe 12.

The inner wall surface of the first guiding sleeve 17 is provided with a plurality of first inner protruding ribs 171 extending along the longitudinal direction, the first inner protruding ribs 171 are movably contacted with the outer wall of the first longitudinal pipe 11 to play a guiding role, and the contact area between the first guiding sleeve 17 and the first longitudinal pipe 11 is reduced to reduce the sliding resistance between the first guiding sleeve 17 and the first longitudinal pipe 11.

Optionally, the first guide sleeve 17 is made of a nylon (PA) material to further reduce the sliding resistance between the first guide sleeve 17 and the first longitudinal tube 11 and reduce the weight of the lifting adjustment fence 1.

By providing two guide mechanisms, i.e., the first outer peripheral portion 161 and the first guide bush 17, between the first vertical pipe 11 and the second vertical pipe 12, the sliding between the first vertical pipe 11 and the second vertical pipe 12 can be made smoother.

In other embodiments, only one guide mechanism is disposed between the first longitudinal tube 11 and the second longitudinal tube 12, so that the structure of the lifting adjusting guardrail 1 can be simplified and the weight of the lifting adjusting guardrail 1 can be reduced.

With continued reference to fig. 3-5, the unlocking device 18 includes an unlocking button 180 and a pressing rod 183, and the top rail 10 includes a button guide groove 103, a fifth spring 106, a spring stopper 104, a longitudinal tube connecting part 105, and a button stopper 107.

The unlock button 180 is movably disposed at the top rail 10, and the button guide groove 103 serves to receive the unlock button 180 and provide a guide for the movement of the unlock button 180. Be provided with between the first unlocking piece 153 of unblock button 180 and first locking mechanism 15 and press the pole 183, press the movably setting in first vertical tube 11 of pole 183, press the pole 183 upper end to insert the pole slot 182 of pressing of unblock button 180, the lower extreme offsets with first unlocking piece 153, in order through pressing unblock button 180, the drive is pressed pole 183 and first unlocking piece 153 and is moved down, and then drives first locating pin 152 and withdraws, in order to relieve the locking state of first locking mechanism 15.

The unlocking button 180 is movably connected with the spring stopping portion 104 through a fifth spring 106, the fifth spring 106 is a pressure spring, two ends of the fifth spring respectively abut against the unlocking button 180 and the spring stopping portion 104, the spring stopping portion 104 is located below the unlocking button 180, and the elastic force of the fifth spring 106 is used for enabling the unlocking button 180 to move upwards, so that the first locking mechanism 15 is kept in a locking state when the unlocking button 180 is not pressed downwards.

In another embodiment, the top rail 10 is not provided with the fifth spring 106 and the spring stopper 104, and the first unlocking piece 153, the pressing rod 183, and the unlocking button 180 are moved upward only by the elastic force of the second spring 157 of the first locking mechanism 15.

With continued reference to fig. 3-5, the release button 180 is provided with a flange 181 that abuts the button stop 107 of the top rail 10 to limit the range of upward movement of the release button 180 and prevent the release button 180 from being removed from the top rail 10.

In other embodiments, the upper and lower ends of the pressing rod 183 are fixedly connected to the unlocking button 180 and the first unlocking member 153 by a screw, a snap, an integral connection, or other connection methods, so that the upward movement range of the unlocking button 180 can be limited by the pressing rod 183 and the first unlocking member 153 without providing the flange 181 and the button stopper 107.

With continued reference to fig. 3 to 5, the inner wall of the first longitudinal pipe 11 is provided with a plurality of through holes 111, the through holes 111 longitudinally penetrate through the first longitudinal pipe 11, the top and the bottom of the through holes 111 are respectively provided with a top internal thread 112 and a bottom internal thread (not shown), for example, the first longitudinal pipe 11 is made by opening an aluminum profile to form a pipe structure having an inner cavity 113 and the inner wall provided with the plurality of through holes 111, and the top internal thread 112 and the bottom internal thread are processed at the top and the bottom of the through holes 111. The longitudinal pipe connecting portion 105 is provided with a connecting hole 108 corresponding to the through hole 111 to connect the longitudinal pipe connecting portion 105 to the top internal thread 112 by a link fastener 109, and the first connecting wall 163 of the first harness 16 is also provided with a harness connecting hole 168 corresponding to the through hole 111 to connect the first connecting wall 163 to the bottom internal thread by a harness fastener 169.

The top rail 10 includes a handle 101 and a link 102. The handle 101 is made of a wooden material to improve comfort. The link 102 is located below the handle 101, and the link 102 is made of a metal material and is used to support the handle 101, so as to improve the rigidity and strength of the top cross bar 10. The handle 101 provides the aforementioned button guide groove 103 and button stopper 107, and the link 102 provides the aforementioned spring stopper 104 and longitudinal tube connecting portion 105.

The elastic cylindrical pin 24 is inserted into the pin hole 123 at the bottom of the second longitudinal pipe 12 and stops the first fixing sleeve 16 to limit the downward movement range of the first longitudinal pipe 11. In other embodiments, the bottom of the second longitudinal tube 12 may be provided with other removable stop mechanisms to limit the downward movement of the first longitudinal tube 11.

Example 2:

as shown in fig. 8 to 12, the lifting adjusting guardrail 1 according to embodiment 2 of the present invention follows the reference numerals and parts of the elements of the foregoing embodiment 1, wherein the same reference numerals are used to indicate the same or similar elements, and the description of the same technical contents is optionally omitted. For the description of the omitted parts, reference may be made to the foregoing embodiment 1, and the description of this embodiment is omitted.

The main difference between this embodiment and the foregoing embodiment 1 is that: the lifting adjusting guardrail 1 of the embodiment further comprises a pair of third longitudinal pipes 13, a second locking mechanism 20, a second fixing sleeve 21 and a second guide sleeve 22, wherein the pair of second longitudinal pipes 12 are respectively inserted into the pair of third longitudinal pipes 13 and can move longitudinally in the third longitudinal pipes 13, an elastic cylindrical pin 24 is inserted into a pin hole 133 at the bottom of the third longitudinal pipes 13, and the mounting base 19 is connected to a mounting base connecting hole 134 of the third longitudinal pipes 13. The third longitudinal pipe 13 is provided with an escape groove 135 for escaping the intermediate crossbar 14 when the intermediate crossbar 14 moves downward with the second longitudinal pipe 12, so that the second longitudinal pipe 12 can be retracted into the third longitudinal pipe 13.

Referring to fig. 8 to 10, the side wall 130 of the third longitudinal pipe 13 is provided with a second positioning hole 131, and the second positioning hole 131 is provided in the middle or the top of the third longitudinal pipe 13. The second locking mechanism 20 includes a second detent pin 202, a second unlocking member 203, a third spring 206, and a fourth spring 207. The second locking mechanism 20 has a locked state and an unlocked state, and when the second positioning pin 202 is engaged with the second positioning hole 131, the second locking mechanism 20 is in the locked state, so as to limit the longitudinal movement between the second longitudinal pipe 12 and the third longitudinal pipe 13, and keep the second longitudinal pipe 12 and the third longitudinal pipe 13 in the unfolded state, which will be described in detail later.

The second fixing sleeve 21 is connected to the bottom of the second longitudinal pipe 12, and the second fixing sleeve 21 includes a second peripheral portion 211, a second protrusion 212, and a second connecting wall 213 connecting the second peripheral portion 211 and the second protrusion 212.

The second outer peripheral portion 211 is located between the outer wall of the second longitudinal pipe 12 and the inner wall of the third longitudinal pipe 13, and is used for guiding and lubricating the relative movement between the second longitudinal pipe 12 and the third longitudinal pipe 13, and playing a role in shock absorption and noise reduction.

The outer wall surface of the second peripheral portion 211 is provided with a plurality of second outer ribs 214 extending in the longitudinal direction, the second outer ribs 214 are movably contacted with the inner wall of the third longitudinal pipe 13 to play a guiding role, and the contact area between the second peripheral portion 211 and the third longitudinal pipe 13 is reduced to reduce the sliding resistance between the second peripheral portion 211 and the third longitudinal pipe 13.

Optionally, the second fixing sleeve 21 is made of a nylon (PA) material to further reduce the sliding resistance between the second peripheral portion 211 and the third longitudinal tube 13 and to reduce the weight of the lifting adjustment fence 1.

The second protrusion 212 is located inside the second longitudinal tube 12, and is used for supporting the second positioning pin 202 and the second unlocking member 203 and providing a guide for the movement of the second positioning pin 202 and the second unlocking member 203. The second protrusion 212 includes a second positioning pin guide groove 215, a second unlocking member guide groove 216, and a second stopper groove 217.

The second positioning pin 202 is laterally telescopically inserted into the second positioning pin guide groove 215, and the second positioning pin guide groove 215 provides a guide for the movement of the second positioning pin 202. The second positioning pin 202 is telescopically connected to the second protrusion 212 through a third spring 206, the third spring 206 is a compression spring, and two ends of the third spring respectively abut against the second end surface 2021 of the second positioning pin 202 and the inside of the second protrusion 212. The elastic force of the third spring 206 is used to extend the second positioning pin 202 out of the second fixing sleeve 21, and the second positioning pin 202 is used to be inserted into the second positioning hole 131 in the extended state, so that the second locking mechanism 20 is in a locked state, thereby restricting the longitudinal movement between the second longitudinal pipe 12 and the third longitudinal pipe 13.

The second positioning pin 202 is provided with a third inclined surface 204, the second unlocking member 203 is provided with a fourth inclined surface 205, and the third inclined surface 204 and the fourth inclined surface 205 may be inclined planes or curved surfaces. The normal direction of the third inclined surface 204 is directed obliquely upward and inclined toward the extending direction of the second positioning pin 202, the normal direction of the fourth inclined surface 205 is directed obliquely downward, and the third inclined surface 204 is opposed to the fourth inclined surface 205. Therefore, when the second unlocking piece 203 moves downwards, the third inclined surface 204 can be pushed by the fourth inclined surface 205, the second positioning pin 202 is driven to retract, and the locking state of the second locking mechanism 20 is released.

The second unlocking piece 203 is longitudinally movably inserted into the second unlocking piece guide groove 216, and the second unlocking piece guide groove 216 provides a guide for the movement of the second unlocking piece 203. The second unlocking member 203 is telescopically connected to the second protrusion 212 through a fourth spring 207, the fourth spring 207 is a compression spring, and two ends of the fourth spring are respectively abutted against the second stopping portion 2031 of the second unlocking member 203 and the inside of the second protrusion 212. The elastic force of the fourth spring 207 serves to extend the second unlocking member 203 upward so as to maintain the second locking mechanism 20 in a locked state when the second unlocking member 203 is not subjected to downward pressure.

When the first longitudinal pipe 11 moves downward to the bottom of the second longitudinal pipe 12, the first fixing sleeve 16 presses the second unlocking member 203, and further drives the second positioning pin 202 to retract, so as to release the locking state of the second locking mechanism 20.

The second unlocking piece 203 is further provided with a second limiting boss 2032, the second limiting boss 2032 is used for being inserted into the second limiting groove 217 of the second protrusion 212 to limit the longitudinal movement range of the second unlocking piece 203, so that the second unlocking piece 203 is prevented from being released from the second protrusion 212, the second unlocking piece 203 can be further used for limiting the maximum extension length of the second positioning pin 202, and the second positioning pin 202 is prevented from being released from the second protrusion 212.

Optionally, the second positioning pin 202 of the second locking mechanism 20 and the first positioning pin 152 of the first locking mechanism 15 have the same structure and size, and the second unlocking piece 203 of the second locking mechanism 20 and the first unlocking piece 153 of the first locking mechanism 15 have the same structure and size, so as to improve the universality of parts, simplify the design, and facilitate the manufacturing and assembling.

With continued reference to fig. 8 to 10, a second guiding sleeve 22 is fixedly connected to the top of the third longitudinal pipe 13, the second guiding sleeve 22 is disposed between the outer wall of the second longitudinal pipe 12 and the inner wall of the third longitudinal pipe 13, and is used for guiding and lubricating the relative movement between the second longitudinal pipe 12 and the third longitudinal pipe 13, and playing a role in damping and reducing noise, and the second guiding sleeve 22 is also used for stopping the second fixing sleeve 21 to prevent the second longitudinal pipe 12 from coming out of the third longitudinal pipe 13.

The inner wall surface of the second guiding sleeve 22 is provided with a plurality of second inner ribs 221 extending along the longitudinal direction, the second inner ribs 221 are movably contacted with the outer wall of the second longitudinal pipe 12 to play a guiding role, and the contact area between the second guiding sleeve 22 and the second longitudinal pipe 12 is reduced to reduce the sliding resistance between the second guiding sleeve 22 and the second longitudinal pipe 12.

Optionally, the second guiding sleeve 22 is made of nylon (PA) material to further reduce the sliding resistance between the second guiding sleeve 22 and the second longitudinal tube 12 and reduce the weight of the lifting adjustment fence 1.

By providing two guide mechanisms, i.e., the second outer circumferential portion 211 and the second guide sleeve 22, between the second vertical pipe 12 and the third vertical pipe 13, the sliding between the second vertical pipe 12 and the third vertical pipe 13 can be made smoother.

In other embodiments, only one guide mechanism is disposed between the second longitudinal tube 12 and the third longitudinal tube 13, so that the structure of the lifting adjusting guardrail 1 can be simplified and the weight of the lifting adjusting guardrail 1 can be reduced.

The assembly process of the elevation adjustment fence 1 will be described below with reference to embodiment 2 shown in fig. 8 to 12:

1. mounting the first positioning pin 152, the first unlocking piece 153, the first spring 156 and the second spring 157 on the first protruding part 162 of the first fixing sleeve 16 to complete the assembly of the components of the first locking mechanism 15, and mounting the first locking mechanism 15 on the bottom of the first longitudinal pipe 11 through the first fixing sleeve 16;

2. connecting the first protection member 231 with the second protection member 232, connecting the second protection member 232 to the middle cross bar 14, connecting the middle cross bar 14 to the second longitudinal pipe 12, connecting the first guide sleeve 17 to the top of the second longitudinal pipe 12, inserting the first longitudinal pipe 11 with the first locking mechanism 15 and the first fixing sleeve 16 installed into the second longitudinal pipe 12 from the bottom of the second longitudinal pipe 12;

3. mounting the second positioning pin 202, the second unlocking piece 203, the third spring 206 and the fourth spring 207 on the second protruding part 212 of the second fixing sleeve 21 to complete the assembly of the components of the second locking mechanism 20, and mounting the second locking mechanism 20 on the bottom of the second longitudinal pipe 12 through the second fixing sleeve 21;

4. connecting the mounting seat 19 to the third longitudinal pipe 13, connecting the second guide sleeve 22 to the top of the third longitudinal pipe 13, inserting the component assembly formed in the step 1-3 into the third longitudinal pipe 13 from the bottom of the third longitudinal pipe 13, and then inserting the elastic cylindrical pin 24 into the pin hole 133 at the bottom of the third longitudinal pipe 13;

5. the pressing rod 183 is inserted into the first vertical pipe 11, the link 102 is coupled to the top of the first vertical pipe 11, the unlock button 180 and the fifth spring 106 are installed such that the upper end of the pressing rod 183 is inserted into the pressing rod insertion groove 182, the link 102 is coupled to the handle 101, and the first guard 231 is coupled to the link 102.

The process of retracting the elevation adjustment fence 1 downward from the highest state to the lowest state will be described below with reference to embodiment 2 shown in fig. 8 to 12:

I. pressing the unlocking button 180, pressing the first unlocking piece 153 of the first locking mechanism 15 through the pressing rod 183, releasing the locking state of the first locking mechanism 15, and pressing the top cross rod 10 downwards to enable the first longitudinal pipe 11 to move downwards and retract into the second longitudinal pipe 12;

II. When the first fixing sleeve 16 moves downwards along with the first longitudinal pipe 11 to the bottom of the second longitudinal pipe 12, the first fixing sleeve 16 presses the second unlocking piece 203 of the second locking mechanism 20 to release the locking state of the second locking mechanism 20, at this time, the unlocking button 180 can be released, and meanwhile, the top cross rod 10 is continuously pressed downwards, so that the second longitudinal pipe 12 moves downwards and retracts into the third longitudinal pipe 13;

III, when the second fixing sleeve 21 moves downwards along with the second longitudinal pipe 12 to the bottom of the third longitudinal pipe 13, the second fixing sleeve 21 stops on the elastic cylindrical pin 24, at this time, the lifting adjusting guardrail 1 contracts to the lowest state, and the first positioning pin 152 and the second positioning pin 202 are respectively located below the first positioning hole 121 and the second positioning hole 131 and respectively abut against the inner walls of the second longitudinal pipe 12 and the third longitudinal pipe 13.

The process of the ascent and descent adjusting fence 1 being unfolded upward from the lowermost state to the uppermost state will be described below with continued reference to embodiment 2 shown in fig. 8 to 12:

s1, lifting the top cross bar 10 to drive the first longitudinal pipe 11 and the first locking mechanism 15 to rise, and enabling the first positioning pin 152 to slide along the inner wall of the second longitudinal pipe 12 until the first positioning pin is inserted into the first positioning hole 121a at the lowest position in the first positioning holes 121, so that the relative positions of the first longitudinal pipe 11 and the second longitudinal pipe 12 are locked;

s2, pressing the unlocking button 180, pressing the first unlocking piece 153 through the pressing rod 183 to enable the first positioning pin 152 to retract to be separated from the first positioning hole 121a at the lowest position, continuing to lift the top cross rod 10, simultaneously loosening the unlocking button 180 to drive the first longitudinal pipe 11 and the first locking mechanism 15 to ascend until the first positioning pin 152 is inserted into the next first positioning hole 121b, and repeating the operation to enable the first positioning pin 152 to be inserted into the first positioning hole 121c at the highest position;

s3, the unlocking button 180 is not pressed, the top cross bar 10 is continuously pulled, the first longitudinal tube 11 drives the second longitudinal tube 12 to rise, the second positioning pin 202 slides along the inner wall of the third longitudinal tube 13 until the second positioning hole 131 is inserted, and the lifting adjusting guardrail 1 can rise to the highest state.

It is understood that the process of upward expansion of the ascent and descent adjusting fence 1 is not exclusive, and for example, the aforementioned steps S2 and S3 may be adjusted to:

s2', the unlocking button 180 is not pressed, namely the first positioning pin 152 is kept positioned in the first positioning hole 121a at the lowest part, the top cross rod 10 is continuously lifted, the second longitudinal pipe 12 is driven to be lifted through the first longitudinal pipe 11 until the second positioning pin 202 is inserted into the second positioning hole 131, and the relative position of the second longitudinal pipe 12 and the third longitudinal pipe 13 is locked;

s3', pressing the unlocking button 180, pressing the first unlocking member 153 via the pressing rod 183 to retract the first positioning pin 152 to disengage from the first positioning hole 121a at the bottom, continuing to lift the top cross bar 10, and releasing the unlocking button 180 to lift the first longitudinal tube 11 and the first locking mechanism 15 until the first positioning pin 152 is inserted into the next first positioning hole 121b, and repeating the above operations to insert the first positioning pin 152 into the first positioning hole 121c at the top, so as to raise the height-adjustable guardrail 1 to the highest position.

Therefore, the lifting adjusting guardrail 1 can have (2N +1) height gears by arranging the N first positioning holes 121 and the 1 second positioning hole 131.

In other embodiments, the lifting adjustment barrier 1 includes four or more pairs of longitudinal tubes to meet more operational requirements.

This lift adjustment guardrail 1 can rise to higher height when using, plays better guard action, can contract to lower height when not using, and occupation space is less, and can satisfy multiple user demand to can prevent that human position from being blocked in this lift adjustment guardrail 1, or by being blocked between this lift adjustment guardrail 1 and the bed body 200, lead to personnel to be hindered or damage lift adjustment guardrail 1 by the clamp. This lift adjustment guardrail 1's simple operation, safe and reliable, simple structure easily manufacturing and assembly.

With continued reference to fig. 1 and 2, by installing two lifting adjusting guardrails 1 on the same side of the nursing bed 2, the whole bed side can be well protected. According to the use needs, can set up this lift adjustment guardrail 1 in a plurality of sides of nursing bed 2, when not using, can shrink this lift adjustment guardrail 1 to lower height, occupation space is less, and can satisfy multiple user demand, the simple operation, safe and reliable.

Although the present invention has been disclosed in terms of the preferred embodiment, it is not intended to limit the utility model, and variations and modifications may be made by one skilled in the art without departing from the spirit and scope of the utility model. Therefore, any modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the protection scope defined by the claims of the present invention, unless the technical essence of the present invention departs from the content of the present invention.

Claims (16)

1. The lift adjustment guardrail for set up the side at the bed body, indulge the pipe including top horizontal pole and a pair of first, the both ends of top horizontal pole are connected respectively the top of pipe is indulged to a pair of first, its characterized in that, the lift adjustment guardrail still includes that a pair of second indulges pipe, first locking mechanism, release mechanism and protection machanism, wherein:

the pair of first longitudinal pipes are respectively inserted into the pair of second longitudinal pipes and can move longitudinally in the second longitudinal pipes;

the first locking mechanism has a locked state in which longitudinal movement between the first longitudinal tube and the second longitudinal tube is able to be restricted and an unlocked state in which the first locking mechanism is able to restrict longitudinal movement between the first longitudinal tube and the second longitudinal tube;

the unlocking mechanism is used for releasing the locking state of the first locking mechanism;

the protection mechanism can stretch out and draw back along with the lift of lift adjustment guardrail, protection mechanism is used for sheltering from the side of lift adjustment guardrail to prevent that human position from being blocked in the lift adjustment guardrail or the lift adjustment guardrail with between the bed body.

2. The lift adjustment barrier of claim 1, further comprising a middle cross bar having both ends connected to the pair of second longitudinal tubes, respectively, wherein the guard mechanism comprises a first guard member and a second guard member, the first guard member and the second guard member being longitudinally movably connected, a top end of the first guard member being connected to the top cross bar, the second guard member being connected to the middle cross bar, a bottom end of the second guard member being no higher than a bed surface of the bed.

3. The lift adjustment barrier of claim 2, wherein said second guard member is longitudinally movably connected to said intermediate cross bar.

4. The lifting adjustment barrier as recited in any of claims 1-3, wherein the sidewall of the second longitudinal tube is provided with first positioning holes, at least one of the first positioning holes being provided at a middle or top portion of the second longitudinal tube, the lifting adjusting guardrail also comprises a first fixing sleeve which is connected with the bottom of the first longitudinal pipe, the first locking mechanism comprises a first positioning pin and a first unlocking piece, the first positioning pin can be transversely inserted into the first fixing sleeve in a telescopic way, the first positioning pin is used for being inserted into the first positioning hole in an extending state so as to limit the longitudinal movement between the first longitudinal pipe and the second longitudinal pipe, the first unlocking piece is inserted into the first fixing sleeve in a longitudinally movable mode, the first positioning pin is used for driving the first positioning pin to retract and limiting the maximum extending length of the first positioning pin.

5. The lifting adjusting fence as claimed in claim 4, wherein the second vertical pipe includes a vertical pipe body and a fillet provided on at least a part of an inner wall of the vertical pipe body, the fillet is made of a resin material, a plurality of the first positioning holes are provided on the fillet at a longitudinal interval, and the first positioning holes are provided only on the fillet.

6. The adjustable riser fence of claim 4 wherein the first harness includes a first outer peripheral portion positioned between an outer wall of the first longitudinal tube and an inner wall of the second longitudinal tube for guiding and lubricating relative movement of the first longitudinal tube and the second longitudinal tube and a first protrusion positioned within the first longitudinal tube for guiding movement of the first locator pin and the first unlocking member.

7. The adjustable riser fence of claim 6 further comprising a first guide sleeve coupled to the top of the second longitudinal pipe and disposed between the outer wall of the first longitudinal pipe and the inner wall of the second longitudinal pipe for guiding and lubricating the relative movement between the first longitudinal pipe and the second longitudinal pipe and for stopping the first fastener sleeve to prevent the first longitudinal pipe from being removed from the second longitudinal pipe.

8. The lifting adjustment fence according to claim 4, wherein the first locking mechanism further comprises a first spring and a second spring, the first detent pin is provided with a first inclined surface, the first unlocking member is provided with a second inclined surface for cooperating with the first inclined surface to retract the first detent pin by a downward movement of the first unlocking member, an elastic force of the first spring is used to extend the first detent pin out of the first fixing housing, and an elastic force of the second spring is used to extend the first unlocking member upward.

9. The lifting adjustment fence of any one of claims 1 to 3 further comprising a pair of third longitudinal tubes and a second locking mechanism, wherein:

the pair of second longitudinal pipes are respectively inserted into the pair of third longitudinal pipes and can move longitudinally in the third longitudinal pipes;

the second locking mechanism has a locked state in which it is able to restrict longitudinal movement between the second longitudinal tube and the third longitudinal tube and an unlocked state;

when the first longitudinal pipe moves downwards to the bottom of the second longitudinal pipe, the first locking mechanism releases the locking state of the second locking mechanism.

10. The lift adjustment barrier of claim 9, wherein said third longitudinal tube has a second positioning hole formed in a side wall thereof, said second positioning hole being formed in a middle or top portion of said third longitudinal tube, said lift adjustment barrier further comprising a second securing sleeve attached to a bottom portion of said second longitudinal tube, said second locking mechanism comprising a second positioning pin laterally telescopically inserted into said second securing sleeve, said second positioning pin in an extended state for insertion into said second positioning hole to limit longitudinal movement between said second longitudinal tube and said third longitudinal tube, and a second unlocking member longitudinally movably inserted into said second securing sleeve for driving said second positioning pin to retract and limit a maximum extension length of said second positioning pin.

11. The adjustable riser fence of claim 10 wherein the second harness includes a second peripheral portion and a second protrusion, the second peripheral portion being positioned between an outer wall of the second longitudinal tube and an inner wall of the third longitudinal tube for guiding and lubricating relative movement of the second longitudinal tube and the third longitudinal tube, the second protrusion being positioned within the second longitudinal tube for guiding movement of the second locator pin and the second unlocking member.

12. The adjustable riser fence of claim 11 further comprising a second guide sleeve coupled to the top of the third longitudinal pipe and disposed between the outer wall of the second longitudinal pipe and the inner wall of the third longitudinal pipe for guiding and lubricating the relative movement between the second longitudinal pipe and the third longitudinal pipe and for stopping the second fastener sleeve to prevent the second longitudinal pipe from being removed from the third longitudinal pipe.

13. The adjustable riser fence of claim 10 wherein the second locking mechanism further comprises a third spring and a fourth spring, the second locator pin is provided with a third ramp, the second unlocking member is provided with a fourth ramp for cooperating with the third ramp to retract the second locator pin by downward movement of the second unlocking member, the third spring has a spring force for extending the second locator pin out of the second securing sleeve, and the fourth spring has a spring force for extending the second unlocking member upward.

14. The lifting adjustment barrier of claim 4, wherein the unlocking mechanism comprises an unlocking button for actuating the first unlocking member to move downward to retract the first positioning pin to release the locked state of the first locking mechanism; the top horizontal pole includes button guide way, fifth spring, spring backstop portion and indulges tub of connecting portion, the button guide way is used for holding unlock button and for unlock button's removal provides the direction, unlock button passes through fifth spring with spring backstop portion is movably connected, the elasticity of fifth spring is used for making unlock button upwards stretches out, indulge tub of connecting portion be used for with first indulge tub of fixed connection.

15. The lift adjustment barrier of claim 14, wherein said top rail includes a handle providing said button guide slot and a linkage supporting said handle and providing said spring stop and said longitudinal tube connection.

16. A nursing bed comprising a lifting adjustment fence according to any of claims 1 to 15.

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