CN209366151U - Even hang locking device and run-through channel - Google Patents

Abstract

A kind of even extension locking device and run-through channel provided by the utility model, are related to subway locking device field, to solve the problems, such as that the disassembly of the elastic bulb in lock tongue mounting base accommodation groove is inconvenient and designs.The company hangs the lock tongue that locking device includes lock tongue mounting base for connecting with framework, is rotatably connected at lock tongue mounting base, is set to the elastic bulb of lock tongue mounting base and is set to the first groove of lock tongue, lock tongue mounting base has the rear end close to the front end of lock tongue and away from lock tongue, lock tongue mounting base includes the accommodation groove that front end is arranged in, elastic bulb is placed in accommodation groove, and the first groove can be caught under the locking states of lock tongue.The run-through channel includes that framework, vestibule diaphragm and above-mentioned even extension locking device, lock tongue mounting base are installed on framework, and lock tongue can be by vestibule diaphragm locking in framework.It is provided by the utility model even to hang locking device and run-through channel, elastic bulb directly can be taken out from the accommodation groove of lock tongue mounting base front end and be replaced, so that replacement efficiency greatly improves.

Description

Even hang locking device and run-through channel

Technical field

The utility model relates to a kind of subway locking devices, even hang locking device and run-through channel more particularly, to a kind of.

Background technique

Run-through channel vestibule diaphragm is mounted between two compartments, for keeping adjacent compartment to be completely embedded, prevents wind, rain etc. from invading Enter, the flexible member of protection passenger safety passage or delay, it is by the aluminum profile on vestibule diaphragm and to be mounted in compartment framework Lock tongue between frictional force be stuck in the latch portion of lock tongue, realize vestibule diaphragm and framework connection.After vestibule diaphragm installation, at lock tongue In locking states, need that lock tongue is carried out to limit at this time to be allowed to rotate freely, so setting in the vehicle upper lock tongue of operation now It counts into through elastic bulb and limits the rotation of lock tongue.

The status requirement of elastic bulb protrusion lock tongue installation front edge of board is higher, does not adjust when installation exercise personnel assembling The position of elastic bulb or the damage of the spring fatigue because connecting elastic bulb, clamping stagnation cause bulb not bounce, when there are these Situation can all cause lock tongue rotation to loosen, if it find that problem, framework is already installed on car body at this time, do over again just very tired Difficulty brings very big inconvenience to later period maintenance.

Utility model content

First of the utility model is designed to provide a kind of even extension locking device, to solve lock tongue mounting base accommodation groove The inconvenient technical problem of interior elastic bulb disassembly.

It is provided by the utility model it is a kind of even hang locking device, including for being connect with framework lock tongue mounting base, can turn It is connected to the lock tongue of the lock tongue mounting base dynamicly, be set to the elastic bulb of the lock tongue mounting base and is set to the lock tongue The first groove, the lock tongue mounting base have close to the lock tongue front end and away from the rear end of the lock tongue, the lock tongue Mounting base includes the accommodation groove that the front end is arranged in, and the elasticity bulb is placed in the accommodation groove, and can be described First groove is caught under the locking states of lock tongue.

Further, the lock tongue mounting base includes adjustment hole, and the adjustment hole extends from the front end to the rear end And running through the lock tongue mounting base, the locking device of even hanging further includes the adjusting spiral shell that the adjustment hole is screwed in from the rear end The accommodation groove is collectively formed close to the end face of the front end and the hole wall of the adjustment hole in column, the adjusting stud.

Further, the lock tongue mounting base includes being opened in the blind hole of the front end, and the blind hole forms the accommodating Slot.

Further, it further includes being set in the accommodation groove with the appearance to the accommodation groove that locking device is hung by the company The adjusting gasket that length is adjusted is set, the quantity of the adjusting gasket is at least one.

Further, it further includes bulb plunger that locking device is hung by the company, and the bulb plunger includes axle portion, ball head With the elastic component of connection between, the elastic bulb is collectively formed in the ball head and the elastic component.

Further, it further includes the second groove for being set to the lock tongue that locking device is hung by the company, in the lock tongue Rotation path on, second groove and first groove are separately；The elasticity bulb can be in the solution of the lock tongue Second groove is caught under volume state.

Further, the lock tongue include interconnecting piece for being rotatablely connected with the lock tongue mounting base and for it is described Framework cooperation is arranged on the interconnecting piece with the latch portion of locking vestibule diaphragm, first groove and second groove, and Along the radial direction of the interconnecting piece, the center of first groove and/or the second groove from the interconnecting piece extends to described The edge of interconnecting piece.

Further, the latch portion is provided with guide surface close to the elastic bulb on one side, and the guide surface is used for It is guided during the latch portion is by the vestibule diaphragm locking.

Further, the lock tongue mounting base is equipped with boss pin shaft, and the interconnecting piece is sheathed on the boss pin shaft, described Even hanging locking device further includes for pushing against the interconnecting piece in the fastener of the front end, and the fastener is connected to described On boss pin shaft.

Further, the run-through channel hangs locking device, the lock tongue installation including framework, vestibule diaphragm and the company Seat is installed on the framework, and the lock tongue can be by the vestibule diaphragm locking in the framework.

The utility model, which connects padlock and closes device, to be had the benefit that:

Provided by the utility model even to hang locking device, including lock tongue mounting base, lock tongue, lock tongue mounting base includes being set to The accommodation groove of its front end, and elastic bulb is provided in lock tongue mounting base, elastic bulb is placed in holding tank, is arranged on lock tongue There is the first groove, in locking states, elastic bulb can be caught in the first groove.

This even hangs the groundwork process of locking device are as follows: firstly, elastic bulb is placed in lock tongue mounting base accommodation groove, Lock tongue is rotationally connected with lock tongue mounting base again, when rotation lock tongue makes elastic bulb be embedded in the first groove, the company's of realization padlock Close the locking functions of device；When rotation lock tongue makes elastic bulb be detached from the first groove, the solution that locking device is hung by the company of realization compiles function Energy.

When elastic bulb needs replacing, lock tongue is dismantled from lock tongue mounting base, by elastic bulb before lock tongue mounting base New elastic bulb is taken out and placed again in the accommodation groove at end, realizes the replacement of elastic bulb.

The company hangs locking device and solves the problems, such as that the disassembly of the elastic bulb in lock tongue mounting base accommodation groove is inconvenient.Above-mentioned Scheme can compile run-through channel vestibule diaphragm or in the case where do not remove framework not understanding, directly the accommodation groove from lock tongue mounting base front end Elastic bulb is taken out to be replaced.This device is easy to operate, so that replacement efficiency greatly improves, eliminates the step of disassembly framework Suddenly, human cost and replacement cost is greatly saved in the replacing construction for saving elastic bulb.

Second of the utility model is designed to provide a kind of run-through channel, to solve the bullet in lock tongue mounting base accommodation groove Property the inconvenient technical problem of bulb disassembly.

Locking device is hung by run-through channel provided by the utility model, including framework, vestibule diaphragm and company, and lock tongue mounting base is installed on frame Body, lock tongue can be by vestibule diaphragm lockings in framework.

The utility model run-through channel has the benefit that

By the way that above-mentioned even extension locking device is arranged in run-through channel, correspondingly, there is the run-through channel above-mentioned even padlock to close dress The institute set is advantageous, and details are not described herein.

Detailed description of the invention

It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art Under the premise of labour, it is also possible to obtain other drawings based on these drawings.

Fig. 1 is the diagrammatic cross-section provided by the embodiment of the utility model for even hanging locking device；

Fig. 2 is the schematic diagram provided by the embodiment of the utility model even hung when locking device is in locked position；

Fig. 3 is the partial enlarged view in Fig. 2 at A；

Fig. 4 is the diagrammatic cross-section of the lock tongue mounting base provided by the embodiment of the utility model for even hanging locking device, wherein It adjusts bolt and is rotatably connected in adjustment hole；

Fig. 5 is the section signal of another lock tongue mounting base provided by the embodiment of the utility model for even hanging locking device Figure；

The structural schematic diagram of Fig. 6 bulb plunger provided by the embodiment of the utility model for even hanging locking device；

Fig. 7 is the diagrammatic cross-section of the lock tongue provided by the embodiment of the utility model for even hanging locking device；

Fig. 8 is structural representation of the lock tongue of even extension locking device provided by the embodiment of the utility model under another visual angle Figure；

Fig. 9 is the partial schematic diagram of run-through channel provided by the embodiment of the utility model.

Appended drawing reference:

100- lock tongue；200- lock tongue mounting base；300- accommodation groove；400- elasticity bulb；500- framework；600- adjusts spiral shell Column；700- axle portion；800- vestibule diaphragm；

110- interconnecting piece；120- latch portion；210- adjustment hole；220- boss pin shaft；

The first groove of 111-；The second groove of 112-；121- guide surface.

Specific embodiment

It is practical new to this below in conjunction with attached drawing to keep the purpose of this utility model, technical solution and advantage clearer The technical solution of type carries out clear, complete description.Obviously, described embodiment is only that a part of the utility model is implemented Example, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making wound Every other embodiment obtained under the premise of the property made labour, fall within the protection scope of the utility model.

In the description of the present invention, it should be noted that the instructions such as term "front", "rear", "bottom" "upper", "inner" Orientation or positional relationship is to be based on the orientation or positional relationship shown in the drawings, it is only for convenient for description the utility model and Simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific orientation construction And operation, therefore should not be understood as limiting the present invention.In addition, term " first ", " second " are used for description purposes only, It is not understood to indicate or imply relative importance.

In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term is " even Connect ", " installation " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can To be mechanical connection；It can be directly connected, the company inside two elements can also be can be indirectly connected through an intermediary It is logical.For the ordinary skill in the art, above-mentioned term in the present invention specific can be understood with concrete condition Meaning.

As shown in Figure 1-Figure 3, it is provided in this embodiment it is a kind of even hang locking device, including for connecting with framework 500 Lock tongue mounting base 200, the lock tongue 100 for being rotatably connected at lock tongue mounting base 200, the elasticity for being set to lock tongue mounting base 200 Bulb 400 and the first groove 111 for being set to lock tongue 100, lock tongue mounting base 200 have the front end of close lock tongue 100 and deviate from The rear end of lock tongue 100, lock tongue mounting base 200 include the accommodation groove 300 that front end is arranged in, and elastic bulb 400 is placed on accommodation groove In 300, and the first groove 111 can be caught under the locking states of lock tongue 100.

This even hangs the groundwork process of locking device are as follows: places firstly, holding in 200 accommodation grooves 300 in lock tongue mounting base Elastic bulb 400, then lock tongue 100 is rotationally connected with lock tongue mounting base 200, when rotation lock tongue 100 makes elastic bulb 400 embedding When entering the first groove 111, the locking functions of locking device are hung by the company of realization；Rotation lock tongue 100 makes elastic bulb 400 be detached from first When groove 111, the solution that locking device is hung by the company of realization compiles function.

When elastic bulb 400 needs replacing, lock tongue is dismantled from lock tongue mounting base 200, by elastic bulb 400 in lock tongue New elastic bulb 400 is taken out and placed again in the accommodation groove 300 of 200 front end of mounting base, realizes elastic bulb 400 more It changes.

Company extension locking device solves the elastic bulb 400 in 200 accommodation groove 300 of lock tongue mounting base and dismantles inconvenient ask Topic.Above-mentioned scheme can directly be installed from lock tongue in the case where not understanding volume run-through channel vestibule diaphragm 800 or not removing framework 500 The accommodation groove 300 of 200 front ends of seat takes out elastic bulb 400 and is replaced.This device is easy to operate, so that replacement efficiency mentions significantly Height, saves the replacing construction of elastic bulb 400, human cost and more is greatly saved the step of eliminating disassembly framework 500 Change this into.

It should be noted that " placement " refers in " elastic bulb 400 is placed in accommodation groove 300 ": when needing replacing When elastic bulb 400, elastic bulb 400 can easily be taken out from accommodation groove 300.Specifically, in the present embodiment, elastic ball First 400 can be made of ferrous material, and operator elastic bulb 400 can be sucked out from accommodation groove by magnet.

As shown in figure 4, in the present embodiment, lock tongue mounting base 200 may include adjustment hole 210, adjustment hole 210 from front end to Rear end extends through lock tongue mounting base 200, and even hanging locking device further includes the adjusting stud that adjustment hole 210 is screwed in from rear end 600, stud 600 is adjusted by the end face of front end and the inner wall of adjustment hole 210, and accommodation groove 300 is collectively formed.

This even hangs locking device before use, adjusting firstly, will adjust stud 600 and screw in from 200 rear end of lock tongue mounting base In hole 210, accommodation groove 300 is collectively formed by the end face of front end and the hole wall of adjustment hole 210 at this point, adjusting stud 600；So Afterwards, elastic bulb 400 is placed in accommodation groove 300, in the process, operator can adjust stud 600 by changing The depth of adjustment hole 210 is screwed in, the extended position of elastic bulb 400 is adjusted.It is determined in the screw-in depth for adjusting stud 600 Afterwards, then it is the framework 500 connecting with lock tongue mounting base 200 and end wall of car body is affixed.It, can when needing replacing elastic bulb 400 Directly to take out elastic bulb 400 out of the front end of lock tongue mounting base 200 accommodation groove 300, realizes and update replacement.

It is above-mentioned that elastic bulb 400 is taken out the setting form with placement in 200 front end of lock tongue mounting base, it improved in the past more When changing elastic bulb 400, first framework 500 must be unloaded from end wall of car body, then by elastic bulb 400 after lock tongue mounting base 200 The problem of end screws out saves the installation replacement time, simultaneously so that the efficiency of installation and replacement elasticity bulb 400 greatly improves It has been greatly reduced the investment of man power and material.

Such setting enables adjusting stud 600 to move freely in adjustment hole 210, to adjust adjusting stud 600 screw-in depth, to further adjust the position of elastic bulb 400.Specifically, adjusting stud 600 can in the present embodiment Think interior hexagonal flush end fastening screw.

It should be noted that in the present embodiment, accommodation groove 300 can be it is above-mentioned by adjusting stud 600 close to the front end End face and adjustment hole 210 the setting form that is collectively formed of hole wall, but be not limited solely to this, other structures can also be used Form, as shown in figure 5, lock tongue mounting base 200 may include being opened in the blind hole of front end, blind hole forms the accommodation groove 300.

When elastic bulb 400 to be placed in accommodation groove 300, elastic bulb 400 can stretch out accommodation groove 300 at this time, It is caught in the first groove 111 of lock tongue 100 and limits the rotation of lock tongue 100.

Blind hole is opened up in the front end of lock tongue mounting base 200, such setting improves the installation effectiveness of elastic bulb 400, Time and manpower is saved, the investment of material resources.

In the present embodiment, even hanging locking device can also include being set in accommodation groove 300 with the accommodating to accommodation groove 300 The adjusting gasket that length is adjusted, the quantity of adjusting gasket are at least one.

When the accommodating length of the accommodation groove 300 of lock tongue mounting base 200 needs to adjust, spacer can be placed in blind hole Piece, the number for placing adjusting gasket at this time are determined according to the position of elastic bulb 400.

Such setting, increased adjusting gasket plays the role of adjusting the accommodating length of accommodation groove 300, so that adjusting bullet The simpler convenience of operation of property 400 position of bulb.

As shown in fig. 6, even hanging locking device can also include bulb plunger, specifically, bulb plunger packet in the present embodiment Include axle portion 700, the elastic component of ball head and connection between, wherein elastic bulb is collectively formed in ball head and elastic component 400。

When there is pressure to act on ball head, ball head is mobile to extreme direction after lock tongue mounting base 200；When pressure disappear or When pressure reduces, ball head is mobile to original state direction under the action of elastic component elastic force, realizes that elastic bulb 400 exists with this Accommodation groove 300 stretches.When rotating lock tongue 100 and making the rotation of the first groove 111 to the position of ball head, ball head is caught in the One groove 111 realizes the locking of lock tongue 100.

Specifically, the elastic component of connection axle portion 700 and ball head can be spring, and ball head can be in the present embodiment Metal ball-head.

It should be noted that elastic bulb 400 can be bulb plunger structure type shown in figure in the present embodiment, But it is not limited solely to this, other structures form can also be used.As: elastic bulb 400 is the elasticity made of elastic material Ball, and can stretch and the restriction to lock tongue 100.It is this directly by elastic 400 form made of elastic material of bulb, The cost of manufacture of elastic bulb 400 is saved, and structure is simple.As long as therefore its elastic bulb for passing through this set form 400, it can be realized the flexible and restriction to lock tongue 100.

As shown in Figure 7 and Figure 8, in the present embodiment, even hanging locking device can also be recessed including being set to the second of lock tongue 100 Slot 112, on the rotation path of lock tongue 100, the second groove 112 and the first groove 111 are separately；Elastic bulb 400 can be The second groove 112 is caught under the solution volume state of lock tongue 100.

This is even hung in the locking device course of work, and lock tongue 100 is rotated, when elastic bulb 400 is caught in the first groove 111, At this point, lock tongue 100 is in locking states；When elastic bulb 400 is caught in the second groove 112, compiled at this point, lock tongue 100 is in solution State.The setting of second groove 112 is avoided to a certain extent when lock tongue is in solution volume state, and lock tongue rotates freely The case where blocking vestibule diaphragm.

Please continue to refer to Fig. 8, in the present embodiment, lock tongue 100 may include for being rotatablely connected with lock tongue mounting base 200 Interconnecting piece 110 and for framework 500 cooperate with the latch portion 120 of locking vestibule diaphragm 800, the first groove 111 and the second groove 112 It is arranged on interconnecting piece 110, and along the radial direction of interconnecting piece 110, the first groove 111 and the second groove 112 from interconnecting piece 110 Center extends to the edge of interconnecting piece 110.

Wherein, the first groove 111 and the second groove 112 are set to the shape of strip groove, elastic bulb 400 is blocked The range for entering groove is bigger, because meeting the requirements as long as elastic bulb 400 can be caught in strip groove, the setting of strip groove The required precision that elastic bulb 400 is caught in groove is reduced to a certain extent.

It should be noted that the first groove 111 and the second groove 112 can be from interconnecting piece 110 in the present embodiment The heart extends to the setting form at the edge of interconnecting piece 110, but is not limited solely to this, can also use other structures, such as: first Groove 111 and the second groove 112 can be that circular trough, square groove or the first groove 111 and the second groove 112 may be used also simultaneously Think strip groove, circular trough, any two kinds in square groove.As long as therefore it passes through the groove of this structure type, Neng Goushi Now to the restriction effect of elastic bulb 400.

As shown in Figure 7 and Figure 8, guide surface 121, guidance has can be set close to elastic bulb 400 in latch portion 120 on one side Face 121 during latch portion 120 is by 800 locking of vestibule diaphragm for guiding.

This is even hung in the locking device course of work, when rotating the progress locking of lock tongue 100, firstly, latch portion 120 and vestibule diaphragm 800 will do it CONTACT WITH FRICTION, and then, lock tongue is rotated to the position of locking states.The setting of guide surface 121, to a certain extent Avoiding latch portion 120 leads to the abrasion of vestibule diaphragm material with the contact of vestibule diaphragm 800, reduces costs consumption, while but also The vestibule diaphragm 800 for being installed on lock tongue 100 is able to achieve Fast Installation and disassembly, improves work efficiency.

Specifically, guide surface 121 can be beveling bevel, but be not limited solely to this in the present embodiment, can also use Other structures, such as: rectangle cutting face.Therefore as long as it is by the cutting face of this structure type, can be to a certain extent Avoid the CONTACT WITH FRICTION of latch portion 120 Yu vestibule diaphragm 800.

As shown in Figure 1, lock tongue mounting base 200 can be equipped with boss pin shaft 220 in the present embodiment, interconnecting piece 110 is sheathed on Boss pin shaft 220, even hang locking device further include for by the interconnecting piece 110 push against in the fastener of the front end, it is described Fastener is connected on the boss pin shaft 220.

Specifically, ladder hole can be set in 100 interconnecting piece 110 of lock tongue, wherein aperture lesser one in the present embodiment End cap is located on boss pin shaft 220, and fastener includes fastening bolt and end cap, and end cap is put from the biggish one end in ladder hole aperture Enter and fit in the step of ladder hole, fastening bolt passes through end cap and is screwed on boss pin shaft 220, thus by interconnecting piece 110 push against in 200 front end of lock tongue mounting base.

Above-mentioned setting avoids occur shaking even unstability in 100 rotary course of lock tongue to a certain extent Situation ensure that the job stability of lock tongue 100, further improve the functional reliability that the present embodiment even hangs locking device.

In addition, the application also provides a kind of run-through channel, as shown in figure 9, run-through channel includes framework 500, vestibule diaphragm 800 and implements Connect extension locking device described in example, lock tongue mounting base 200 is installed on framework 500, and lock tongue 100 can be by 800 locking of vestibule diaphragm in frame Body 500.

By the way that above-mentioned even extension locking device is arranged in run-through channel, correspondingly, there is the run-through channel above-mentioned even padlock to close dress The institute set is advantageous, and details are not described herein.

Finally, it should be noted that above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations； Although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or special to some or all of technologies Sign is equivalently replaced；And these are modified or replaceed, each reality of the utility model that it does not separate the essence of the corresponding technical solution Apply the range of a technical solution.

Claims (10)

1. it is a kind of even hang locking device, which is characterized in that including for connect with framework (500) lock tongue mounting base (200), can The elastic ball for being rotationally connected with the lock tongue (100) of the lock tongue mounting base (200), being set to the lock tongue mounting base (200) Head (400) and the first groove (111) for being set to the lock tongue (100), the lock tongue mounting base (200) have close to the lock The front end of tongue (100) and the rear end for deviating from the lock tongue (100), the lock tongue mounting base (200) include being arranged in the front end Accommodation groove (300), the elasticity bulb (400) is placed in the accommodation groove (300), and can be in the lock tongue (100) Locking states under be caught in first groove (111).

2. according to claim 1 even hang locking device, which is characterized in that the lock tongue mounting base (200) includes adjusting Hole (210), the adjustment hole (210) extends through the lock tongue mounting base (200) from the front end to the rear end, described Even hanging locking device further includes the adjusting stud (600) that the adjustment hole (210) is screwed in from the rear end, the adjusting stud (600) accommodation groove (300) are collectively formed close to the end face of the front end and the hole wall of the adjustment hole (210).

3. according to claim 1 even hang locking device, which is characterized in that the lock tongue mounting base (200) includes opening up Blind hole in the front end, the blind hole form the accommodation groove (300).

4. according to claim 3 even hang locking device, which is characterized in that further include being set to the accommodation groove (300) In the adjusting gasket that is adjusted with the accommodating length to the accommodation groove (300), the quantity of the adjusting gasket is at least one It is a.

5. according to claim 2 or 3 even hang locking device, which is characterized in that it further include bulb plunger, the ball head column Plug includes axle portion (700), the elastic component of ball head and connection between, and the ball head is collectively formed with the elastic component The elasticity bulb (400).

6. according to claim 2 or 3 even hang locking device, which is characterized in that further include being set to the lock tongue (100) The second groove (112), on the rotation path of the lock tongue (100), second groove (112) and first groove (111) separately；The elasticity bulb (400) can be caught in second groove under the solution volume state of the lock tongue (100) (112)。

7. it is according to claim 6 even hang locking device, which is characterized in that the lock tongue (100) include for it is described The interconnecting piece (110) and be used to cooperate with the framework (500) with locking vestibule diaphragm (800) that lock tongue mounting base (200) is rotatablely connected Latch portion (120), first groove (111) and second groove (112) be arranged on the interconnecting piece (110), And the radial direction along the interconnecting piece (110), first groove (111) and/or second groove (112) are from the interconnecting piece (110) center extends to the edge of the interconnecting piece (110).

8. according to claim 7 even hang locking device, which is characterized in that the latch portion (120) is close to the elasticity Bulb (400) is provided with guide surface (121) on one side, and the guide surface (121) is used for the folding in the latch portion (120) It is guided during canopy (800) locking.

9. according to claim 8 even hang locking device, which is characterized in that the lock tongue mounting base (200) is equipped with boss Pin shaft (220), the interconnecting piece (110) are sheathed on the boss pin shaft (220), and it further includes for inciting somebody to action that locking device is hung by the company The interconnecting piece (110) pushes against in the fastener of the front end, and the fastener is connected on the boss pin shaft (220).

10. a kind of run-through channel, which is characterized in that described in any item including framework (500), vestibule diaphragm (800) and claim 1-9 Locking device is even hung, the lock tongue mounting base (200) is installed on the framework (500), and the lock tongue (100) can be by the folding Canopy (800) locking is in the framework (500).