CN209610586U - Unlocking mechanism and guardrail - Google Patents

Abstract

The utility model discloses unlocking mechanism and guardrails, are related to infanette technical field.Unlocking mechanism includes shell and locked component.Shell includes shell ontology, the first mounting portion and the second mounting portion, and the first mounting portion and the second mounting portion are respectively arranged at the both ends of shell ontology, and shell ontology is provided with chamber.Locked component includes pressing piece, driving member, locking piece, the first elastic component and the second elastic component, and pressing piece is set to the second opening and is slidably connected with shell ontology；Second elastic component is held between driving member and the bottom wall of chamber, and pressing piece is for driving driving member to slide；Locking piece is slidably disposed in the first opening, and driving member and locking piece cooperate, and driving member is for driving locking piece along the first opening sliding, so that locking piece locks the first guardrail.Unlocking mechanism provided by the utility model and guardrail have the characteristics that structure is simple, easy to use and safe；And it can be realized safe lock function, and have the characteristics that safeguard protection.

Description

Unlocking mechanism and guardrail

Technical field

The utility model relates to infanette technical fields, in particular to unlocking mechanism and guardrail.

Background technique

Infanette is to show infant's bed used.Present infanette style is varied, and function differs greatly.

Safe design is the factor that infanette design needs emphasis to consider, the connection in infanette design, between guardrail Sometimes it removably or is slidably connected, it is therefore desirable to two guardrails of connection are carried out with the design of locking and unlocking, Such as design unlocking mechanism etc..There are security risks for existing similar means.

Utility model content

The purpose of this utility model is to provide a kind of unlocking mechanisms, simple with structure, easy to use and safe Feature；Applied to when, unlocking mechanism provided by the embodiment of the utility model can be realized safe lock function, and have safety The characteristics of protection.

The utility model provides a kind of technical solution about unlocking mechanism:

A kind of unlocking mechanism is used for guardrail, and the guardrail includes the first guardrail and the second guardrail, and the unlocking mechanism includes Shell and locked component.The shell includes shell ontology, the first mounting portion and the second mounting portion, first mounting portion and described Second mounting portion is respectively arranged at the both ends of the shell ontology, and first mounting portion with first guardrail for connecting, institute The second mounting portion is stated for connecting with second guardrail, the shell ontology is provided with chamber, and the chamber has in communication The first opening and the second opening, it is described first be open close to first mounting portion be arranged.The locked component includes pressing Part, driving member, locking piece, the first elastic component and the second elastic component, first elastic component be held in the pressing piece with it is described Between driving member, the pressing piece is set to described second and is open and is slidably connected with the shell ontology；Second bullet Property part be held between the driving member and the bottom wall of the chamber, the pressing piece is for driving the driving member to slide；Institute It states locking piece and is slidably disposed in first opening, the driving member and the locking piece cooperate, and the driving member is used for Drive the locking piece along the first opening sliding, so that the locking piece locks first guardrail.

Optionally, the pressing piece includes press section and holding part, and the holding part connect and formed with the press section Support division, the press section are slidably connected with the shell ontology, and the support division can be supported with shell ontology, first elasticity Part is held between the holding part and the driving member.

Optionally, the driving member is provided with accommodating cavity, limiting section and driving section, and the holding part is placed in the accommodating Intracavitary, first elastic component is held between the holding part and the inner wall of the accommodating cavity, and second elastic component supports Between the limiting section and the bottom wall of the chamber, the driving section and the locking piece are sequentially connected and are used to drive described Locking piece is along the first opening sliding.

Optionally, the holding part, which is provided with, supports chamber, and the chamber that supports is connected to the accommodating cavity, first elasticity Part supports in chamber and the accommodating cavity described in and is held in described support between the inner wall of chamber and the inner wall of the accommodating cavity.

Optionally, retention bead is provided on the bottom wall of the chamber, second elastic component is sheathed on the limit convex On rising.

Optionally, the locking piece includes the sticking department for locking ontology and connecting with the locking ontology, the sticking department It is set to first opening, the driving section is slidably matched with the locking ontology, and the sticking department is for locking or unlocking First guardrail.

Optionally, the locking ontology is provided with the first transmission inclined-plane, the driving section close to one end of the driving section It is provided with the second transmission inclined-plane being slidably matched with first transmission inclined-plane；When the driving member is in the effect of the pressing piece When lower movement, first driving face, second driving face sliding relatively, so that the sticking department locks or unlocks described the One guardrail.

Optionally, the shell further includes cover board, and the cover board connect with the shell ontology and forms first opening With second opening.

Optionally, second mounting portion and the shell ontology are rotatablely connected.

The another object of the utility model is to provide a kind of guardrail, simple with structure, easy to use and safe Feature；And it can be realized safe lock function, and have the characteristics that safeguard protection.

The utility model provides a kind of technical solution about guardrail:

A kind of guardrail, including the first guardrail, the second guardrail and unlocking mechanism, the shell include shell ontology, the first installation Portion and the second mounting portion, first mounting portion and second mounting portion are respectively arranged at the both ends of the shell ontology, described Shell ontology is provided with chamber, and the chamber has the first opening and the second opening in communication, and described first is open close to institute State the setting of the first mounting portion.The locked component includes pressing piece, driving member, locking piece, the first elastic component and the second elastic component, First elastic component is held between the pressing piece and the driving member, and the pressing piece is set to second opening simultaneously It is slidably connected with the shell ontology；Second elastic component is held between the driving member and the bottom wall of the chamber, The pressing piece is for driving the driving member to slide；The locking piece is slidably disposed in first opening, the biography Moving part and the locking piece cooperate, and the driving member is for driving the locking piece to slide along first opening, and described first Guardrail is connect with first mounting portion, and second guardrail is connect with second mounting portion, and the locking piece is for locking Or unlock first guardrail.

Compared with prior art, unlocking mechanism provided by the utility model and the beneficial effect of guardrail are: the first mounting portion and Second mounting portion is respectively used to the first guardrail of installation and the second guardrail, and locked component is used to lock the first guardrail and the second guardrail Or unlock.In locked component, the retracted position of the first elastic component, In can be changed when pressing piece is with respect to the second opening sliding In a free state, pressing piece supports outside the second opening first elastic component, i.e., pressing piece cannot drive drive member.In When pressing piece is slided with respect to shell ontology, the first elastic component is stretched or compressed, and when pressing piece slides into the second opening completely, presses Casting die can be pressed from the second opening and drive drive member.Further drive locking piece first when drive member Opening sliding with close to or far from the first mounting portion, and then realizes the locking to the first guardrail for being set to the first mounting portion Or unlock.That is, unlocking mechanism provided by the utility model needs that pressing piece is first slid into setting position when in use It is locked or unlocked again afterwards, and when pressing piece is to slide into setting position, it not can be carried out locking or unlock, pass through this The unlocking mechanism that utility model provides can be realized the safe function that locks or unlocks, and have the characteristics that safeguard protection.In addition, Also have the characteristics that structure is simple, easy to use and safe.

Detailed description of the invention

It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment Attached drawing be briefly described.It should be appreciated that the following drawings illustrates only some embodiments of the utility model, therefore should not be by Regard the restriction to range as.For those of ordinary skill in the art, without creative efforts, may be used also To obtain other relevant attached drawings according to these attached drawings.

Fig. 1 is the structural schematic diagram for the unlocking mechanism that the embodiments of the present invention provide；

Fig. 2 is the structural schematic diagram for the shell that the embodiments of the present invention provide；

Fig. 3 is the schematic cross-sectional view for the shell that the embodiments of the present invention provide；

Fig. 4 is the structural schematic diagram for the pressing piece that the embodiments of the present invention provide；

Fig. 5 is structural schematic diagram of the driving member that provides of the embodiments of the present invention under the first visual angle；

Fig. 6 is structural schematic diagram of the driving member that provides of the embodiments of the present invention under the second visual angle；

Fig. 7 is the structural schematic diagram for the locking piece that the embodiments of the present invention provide.

Icon: 10- unlocking mechanism；100- shell；The first mounting portion of 110-；The second mounting portion of 120-；130- shell ontology； 131- chamber；132- first is open；133- second is open；134- retention bead；140- cover board；200- locked component；210- is pressed Casting die；The press section 211-；2112- anti-slip part；212- holding part；2122- supports chamber；213- support division；220- driving member；221- Accommodating cavity；223- limiting section；The driving section 225-；2252- second is driven inclined-plane；230- locking piece；231- locks ontology；2312- First transmission inclined-plane；232- sticking department.

Specific embodiment

It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described.Obviously, it is retouched The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Usually here in attached drawing description and The component of the utility model embodiment shown can be arranged and be designed with a variety of different configurations.

Therefore, requirement is not intended to limit to the detailed description of the embodiments of the present invention provided in the accompanying drawings below The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all Belong to the range of the utility model protection.

It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.

In the description of the present invention, it should be understood that term " on ", "lower", "inner", "outside", "left", "right" etc. The orientation or positional relationship of instruction be based on the orientation or positional relationship shown in the drawings or the utility model product use when The orientation or positional relationship that the orientation or positional relationship or those skilled in the art usually put usually understand, be only for Convenient for description the utility model and simplify description, rather than the equipment of indication or suggestion meaning or element must have specifically Orientation is constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.

In addition, term " first ", " second " etc. are only used for distinguishing description, it is not understood to indicate or imply relatively important Property.

In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, " setting ", Terms such as " connections " shall be understood in a broad sense, for example, " connection " may be a fixed connection, may be a detachable connection, or one Ground connection；It can be mechanical connection, be also possible to be electrically connected；Can be and be directly connected to, can also by between intermediary in succession It connects, can be the connection inside two elements.For the ordinary skill in the art, can understand as the case may be The concrete meaning of above-mentioned term in the present invention.

With reference to the accompanying drawing, specific embodiment of the present utility model is described in detail.

First embodiment

Fig. 1 to Fig. 7 is please referred to, a kind of unlocking mechanism 10 is present embodiments provided, the simple, user with structure Just with the feature of safety；Applied to when, unlocking mechanism 10 provided in this embodiment can be realized safe lock function, and have The characteristics of safeguard protection.

It should be noted that unlocking mechanism 10 provided in this embodiment can be applied to the shield of infanette or infanette Column.At this point, can make the guardrail of infanette or infanette that there is higher security performance, and then guarantee the use peace of infant Entirely.

Simultaneously, it is also desirable to explanation, when unlocking mechanism 10 provided in this embodiment is used for guardrail, for connecting the first shield Column and the second guardrail, and the first guardrail and the second guardrail can be made to lock perhaps opposite sliding and have reached unlock or locking Purpose.

Unlocking mechanism 10 provided in this embodiment includes shell 100 and locked component 200.Shell 100 includes shell ontology 130, the first mounting portion 110 and the second mounting portion 120, the first mounting portion 110 and the second mounting portion 120 are respectively arranged at shell ontology 130 both ends, the first mounting portion 110 with the first guardrail for connecting, and the second mounting portion 120 with the second guardrail for connecting, shell Ontology 130 is provided with chamber 131, and chamber 131 has the first opening 132 and the second opening 133 in communication, the first opening 132 are arranged close to the first mounting portion 110.Locked component 200 includes pressing piece 210, driving member 220, locking piece 230, the first bullet Property part and the second elastic component, the first elastic component are held between pressing piece 210 and driving member 220, and pressing piece 210 is set to second Opening 133 is simultaneously slidably connected with shell ontology 130；Second elastic component be held in driving member 220 and chamber 131 bottom wall it Between, pressing piece 210 is for driving driving member 220 to slide；Locking piece 230 is slidably disposed in the first opening 132, driving member 220 cooperate with locking piece 230, and driving member 220 is for driving locking piece 230 along 132 sliding of the first opening, so that locking piece 230 Lock the first guardrail.

It is understood that the first mounting portion 110 and the second mounting portion 120 are respectively used to the first guardrail of installation and the second shield Column, locked component 200 is used to lock the first guardrail and the second guardrail or unlock.It is locked in the first guardrail and the second guardrail When, the first guardrail and the second guardrail keep opposing stationary；When the first guardrail and the second guardrail unlock, the first guardrail and the second shield It column being capable of relative motion.In locked component 200, opposite second opening 133 of pressing piece 210 can change the first elasticity when sliding The retracted position of part, the first elastic component in a free state, pressing piece 210 supports outside the second opening 133, i.e. pressing piece 210 cannot drive driving member 220 to move.When pressing piece 210 is slided with respect to shell ontology 130, the first elastic component is stretched or presses Contracting (in the present embodiment, the first elastic component is compression), when pressing piece 210 slides into the second opening 133 completely, pressing piece 210 can press from the second opening 133 and driving member 220 is driven to move.Driving member 220 further drives locking when moving Part 230 slides at the first opening 132, with close to or far from the first mounting portion 110, (in the present embodiment, locking piece 230 is close First mounting portion 110), and then realize locking or unlocking to the first guardrail for being set to the first mounting portion 110.That is, Unlocking mechanism 10 provided in this embodiment need first to slide into pressing piece 210 behind setting position when in use carry out again locking or Unlock, and when pressing piece 210 is to slide into setting position, it not can be carried out locking or unlock, provide through this embodiment Unlocking mechanism 10 can be realized the safe function that locks or unlocks, and have the characteristics that safeguard protection.In addition, unlocking mechanism 10 Also have the characteristics that structure is simple, easy to use and safe.

In addition, it should also be noted that, the first elastic component and the second elastic component can be spring etc. with Telescopic Structure.

Referring to Fig. 4, optionally, pressing piece 210 includes press section 211 and holding part 212, holding part 212 and press section 211 connect and form support division 213, and press section 211 is slidably connected with shell ontology 130, and support division 213 can be with shell ontology 130 It supports, the first elastic component is held between holding part 212 and driving member 220.

It is understood that press section 211 is arranged outside chamber 131, the shape when being connect with holding part 212 of press section 211 At support division 213, which can support with shell ontology 130, to prevent press section 211 from pressing down on, and then avoid missing Touching causes the first guardrail and the second guardrail to unlock brought security risk.

In addition, anti-slip part 2112 also can be set on press section 211, such as protrusion or groove etc., in order to user Operation pressing piece 210 simultaneously slides pressing piece 210 with respect to shell ontology 130.In the surface of support division 213 and pair of shell ontology 130 Answer the sliding slot and guide rail that also can be set on position convenient for sliding.

Fig. 5 and Fig. 6 are please referred to, optionally, driving member 220 is provided with accommodating cavity 221, limiting section 223 and driving section 225, Holding part 212 is placed in accommodating cavity 221, and the first elastic component is held between holding part 212 and the inner wall of accommodating cavity 221, the Two elastic components are held between limiting section 223 and the bottom wall of chamber 131, and driving section 225 is sequentially connected and is used for locking piece 230 Drive locking piece 230 along 132 sliding of the first opening.

It is understood that accommodating cavity 221 is used to accommodate the holding part 212 and the first elastic component of pressing piece 210, limiting section 223 for supporting the second elastic component, and driving section 225 with locking piece 230 for being slidably matched, so that locking piece 230 is opened first Mouth 132 slides.Above-mentioned accommodating cavity 221, limiting section 223 and driving section 225 can be manufactured using integrally formed technique.When So, or other manufactures.In addition, holding part 212 also can be with accommodating cavity 221 when operating press section 211 Bottom wall is contacted and is driven, so that driving member 220 moves downward.In the present embodiment, when driving member 220 moves downward, lock is driven Determine part 230 to move to the left or right.

Further, holding part 212, which is provided with, supports chamber 2122, supports chamber 2122 and is connected to accommodating cavity 221, the first elasticity Part, which is located at, to be supported in chamber 2122 and accommodating cavity 221 and is held between the inner wall for supporting chamber 2122 and the inner wall of accommodating cavity 221.

Optionally, retention bead 134 is provided on the bottom wall of chamber 131, the second elastic component is sheathed on retention bead 134 On, it is resetted with preventing the sliding of the second elastic component from influencing driving member 220.

Referring to Fig. 7, optionally, locking piece 230 includes the sticking department for locking ontology 231 and connecting with locking ontology 231 232, sticking department 232 is set to the first opening 132, and driving section 225 is slidably matched with locking ontology 231, and sticking department 232 is for locking Fixed or the first guardrail of unlock.

In the present embodiment, sticking department 232 is the column of protrusion and can stretch to the first mounting portion 110.

Optionally, locking ontology 231 is provided with the first transmission inclined-plane 2312, driving section 225 close to one end of driving section 225 It is provided with the second transmission inclined-plane 2252 being slidably matched with the first transmission inclined-plane 2312；When driving member 220 is in the work of pressing piece 210 When with lower movement, the first driving face is slided with respect to the second driving face, so that sticking department 232 locks or unlocks the first guardrail.

It is understood that being slidably connected between the first transmission inclined-plane 2312 and the second transmission inclined-plane 2252, work as driving section 225 when moving downward, the first transmission inclined-plane 2312 and the second transmission inclined-plane 2252 is opposite slides, the movement of locking piece 230 at this time Direction and the direction of motion of driving member 220 are inconsistent, and angulation and the first transmission inclined-plane 2312 and second pass between the two The angle on dynamic inclined-plane 2252 is related.Optionally, the tilt angle on the first transmission inclined-plane 2312 and the second transmission inclined-plane 2252 is 45 degree, when driving member 220 moves downward, locking piece 230 is moved to the left or right.

It should be noted that driving member 220 is slided along the inner wall of chamber 131, it can be in driving member 220 and chamber 131 Guide part is set, such as the setting guiding groove (figure is not marked) on driving member 220 on inner wall, is arranged on the inner wall of chamber 131 Guide protrusions (figure is not marked).

Optionally, shell 100 further includes cover board 140, cover board 140 connect and formed with shell ontology 130 first opening 132 and Second opening 133.

It is understood that cover board 140 can be convenient for opening the chamber 131 of shell ontology 130, and each component can be convenient for Installation.

Optionally, the second mounting portion 120 is rotatablely connected with shell ontology 130.The first mounting portion 110 is installed in the first guardrail When being installed on the second mounting portion 120 with the second guardrail, the second guardrail can be by between the second mounting portion 120 and shell ontology 130 Rotation realize the rotation between the first guardrail and the second guardrail.

Certainly, realize that the mode of above-mentioned rotation connection can connect with shell ontology 130 by shaft for the second mounting portion 120 It connects or other similar mode realizes rotation connection.

In the present embodiment, the first guardrail and the second guardrail are respectively sleeved at the first mounting portion 110 and the second mounting portion 120 On.

Unlocking mechanism 10 provided in this embodiment the utility model has the advantages that the first mounting portion 110 and the second mounting portion 120 are used respectively In installing the first guardrail and the second guardrail, locked component 200 is used to lock the first guardrail and the second guardrail or unlock.It is locking Determine in component 200, opposite second opening 133 of pressing piece 210 can change the retracted position of the first elastic component when sliding, first In a free state, pressing piece 210 supports outside the second opening 133 elastic component, i.e., pressing piece 210 cannot drive driving member 220 movements.When pressing piece 210 is slided with respect to shell ontology 130, the first elastic component is stretched or compressed, when pressing piece 210 is complete When sliding into the second opening 133, pressing piece 210 can be pressed from the second opening 133 and driving member 220 is driven to move.Transmission Part 220 further drives locking piece 230 to slide at the first opening 132 when moving, close to or far from the first mounting portion 110, and then realize locking or unlocking to the first guardrail for being set to the first mounting portion 110.That is, the utility model mentions The unlocking mechanism 10 of confession needs first to slide into pressing piece 210 behind setting position when in use to be locked or unlocked again, and When pressing piece 210 is to slide into setting position, it not can be carried out locking or unlock, pass through solution lock machine provided by the utility model Structure 10 can be realized the safe function that locks or unlocks, and have the characteristics that safeguard protection.In addition, also having, structure is simple, makes With convenient and safety feature.

Second embodiment

Fig. 1 to Fig. 7 is please referred to, a kind of guardrail (not shown) is present embodiments provided, use simple with structure Convenient and safety feature；And the characteristics of can be realized safe lock function and safeguard protection.

Guardrail provided in this embodiment includes that the first guardrail (not shown), the second guardrail (not shown) and first embodiment mention The unlocking mechanism 10 of confession, shell 100 include shell ontology 130, the first mounting portion 110 and the second mounting portion 120, the first mounting portion 110 and second mounting portion 120 be respectively arranged at the both ends of shell ontology 130, shell ontology 130 is provided with chamber 131, and chamber 131 has There are the first opening 132 and the second opening 133, the first opening 132 in communication to be arranged close to the first mounting portion 110.Locking group Part 200 includes pressing piece 210, driving member 220, locking piece 230, the first elastic component and the second elastic component, and the first elastic component supports Between pressing piece 210 and driving member 220, pressing piece 210 is set to the second opening 133 and slideably connects with shell ontology 130 It connects；Second elastic component is held between driving member 220 and the bottom wall of chamber 131, and pressing piece 210 is for driving driving member 220 sliding It is dynamic；Locking piece 230 is slidably disposed in the first opening 132, and driving member 220 and locking piece 230 cooperate, and driving member 220 is used for Drive locking piece 230 along 132 sliding of the first opening, the first guardrail is connect with the first mounting portion 110, the second guardrail and the second installation Portion 120 connects, and locking piece 230 is for locking or unlocking the first guardrail.

It should be noted that the unlocking mechanism 10 that there is guardrail provided in this embodiment first embodiment to provide, therefore extremely There should be the beneficial effect similar with above-mentioned unlocking mechanism 10 less.Guardrail i.e. provided in this embodiment at least have structure it is simple, Feature easy to use and safe；And the characteristics of can be realized safe lock function and safeguard protection

The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.

Claims (10)

1. a kind of unlocking mechanism, is used for guardrail, the guardrail includes the first guardrail and the second guardrail, which is characterized in that the solution Latch mechanism includes shell and locked component；

The shell includes shell ontology, the first mounting portion and the second mounting portion, first mounting portion and second mounting portion The both ends of the shell ontology are respectively arranged at, first mounting portion with first guardrail for connecting, second installation For connecting with second guardrail, the shell ontology is provided with chamber in portion, and the chamber has the first opening in communication With the second opening, described first is open is arranged close to first mounting portion；

The locked component includes pressing piece, driving member, locking piece, the first elastic component and the second elastic component, first elasticity Part is held between the pressing piece and the driving member, the pressing piece be set to it is described second opening and with the shell ontology It is slidably connected；Second elastic component is held between the driving member and the bottom wall of the chamber, and the pressing piece is used In the drive driving member sliding；The locking piece is slidably disposed in first opening, the driving member and the lock Determine part cooperation, the driving member is for driving the locking piece along the first opening sliding, so that the locking piece locks institute State the first guardrail.

2. unlocking mechanism according to claim 1, which is characterized in that the pressing piece includes press section and holding part, institute It states holding part and support division is connect and formed with the press section, the press section is slidably connected with the shell ontology, described to support Portion can be supported with shell ontology, and first elastic component is held between the holding part and the driving member.

3. unlocking mechanism according to claim 2, which is characterized in that the driving member be provided with accommodating cavity, limiting section and Driving section, the holding part are placed in the accommodating cavity, and first elastic component is held in the holding part and the accommodating Between the inner wall of chamber, second elastic component is held between the limiting section and the bottom wall of the chamber, the driving section with The locking piece is sequentially connected and is used to drive the locking piece along the first opening sliding.

4. unlocking mechanism according to claim 3, which is characterized in that the holding part, which is provided with, supports chamber, described to support Chamber is connected to the accommodating cavity, and first elastic component supports in chamber and the accommodating cavity described in and is held in described support Between the inner wall of chamber and the inner wall of the accommodating cavity.

5. unlocking mechanism according to claim 3, which is characterized in that it is provided with retention bead on the bottom wall of the chamber, Second elastic component is sheathed in the retention bead.

6. unlocking mechanism according to claim 3, which is characterized in that the locking piece include locking ontology and with the lock Determine the sticking department of ontology connection, the sticking department is set to first opening, and the driving section and the locking ontology slide Cooperation, the sticking department is for locking or unlocking first guardrail.

7. unlocking mechanism according to claim 6, which is characterized in that the one end of the locking ontology close to the driving section It is provided with the first transmission inclined-plane, the driving section is provided with the second transmission inclined-plane being slidably matched with first transmission inclined-plane； When the driving member moves under the action of the pressing piece, the relatively described second driving face sliding of first driving face, So that the sticking department locks or unlocks first guardrail.

8. unlocking mechanism according to claim 1, which is characterized in that the shell further includes cover board, the cover board and institute Shell ontology is stated to connect and form first opening and second opening.

9. unlocking mechanism described in any one of -8 according to claim 1, which is characterized in that second mounting portion with it is described The rotation connection of shell ontology.

10. a kind of guardrail, which is characterized in that including the first guardrail, the second guardrail and as described in any one of claim 1-9 Unlocking mechanism, first guardrail connect with first mounting portion, and second guardrail is connect with second mounting portion, The locking piece is for locking or unlocking first guardrail.