CN2729250Y

CN2729250Y - Push-type lock for fire-proof door

Info

Publication number: CN2729250Y
Application number: CN 03201004
Authority: CN
Inventors: 林清田
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-01-15
Filing date: 2003-01-15
Publication date: 2005-09-28
Anticipated expiration: 2013-01-15

Abstract

The utility model provides a push-type lock for the fire-proof door. The interior of the pressing handle of the door lock is connected with a traction rotating block. The lock bolt of the door lock is asway pivoted in a lock cover seat. A slide seat is arranged in the lock cover seat. The back end of the slide seat is connected with a traction bar. When one end of the traction rotating block is subjected to the pressing of the pressing handle, the traction rotating block generates the rotation to cause the other end of the traction rotating block to move and push the traction bar to generate the horizontal moving. The traction rotating block is drawn by the traction bar, which causes the lock bolt to swing and generate the locking or unlocking function. In addition, the inner surface of the slide seat arranged in the lock cover seat is provided with a baffle plate. The inside of the slide seat is embedded with a fire-proof block. When the fire is generated, the fire-proof block is melted by the high temperature, and the pulling force generated by the elastic component which is connected with the baffle plate is caused to move. Thus, when the lock bolt is in locking state, a clamp stopper can not move on the baffle plate, and the fire ground is prevented from extending.

Description

A kind of door lock of pushing that is used for labeled door

Technical field

The utility model relates to a kind of door lock, particularly relate to a kind of door lock of pushing that is used for labeled door, but it pushes the motion of traction locking bolt at a kind of squeeze grip vertical mode of labeled door, and produces the labeled door pushing door lock of locking safe handling function by the fire blocks of installing.

Background technology

The use that general labeled door (as shown in Figure 1) commonly used is opened door lock, be by the squeeze grip 11 that is pressed in the handle skeleton frame 10 that door-plate central authorities are horizontally set with, move down by squeeze grip 11, locking bolt 12d in the traction lock housing 12 produces the action of withdrawal, and labeled door can be unlocked because of the door-lock-release blocking.Above-mentioned labeled door door lock squeeze grip 11 commonly used is a kind of motion mode operations of baroclining, and just when squeeze grip 11 was pressed downwards by the user, this squeeze grip 11 was to move downward with oblique move mode.See also the shown fireproofing door lock structure of Fig. 2 and Fig. 3, for convenience of the convenience of observing, special door lock rotated 90 degree to be level horizontal, wherein be positioned at the inside of handle skeleton frame 10, being installed with one respectively is available for users to the squeeze grip 11 that hand presses downwards and connects the lock housing 12 that is installed with locking bolt 12d, this squeeze grip 11 is connected by two holders 13 that screw is locked in handle skeleton frame 10 bottoms, these holder 13 two side edge respectively are provided with a skewed slot 13a, wear two roller traveller 13b thus and worn and be fixed on the squeeze grip 11 two side edge by a tip body 13c, be positioned at bottom, said fixing seat 13 front side simultaneously, wear fixing the one fixing pin 13e that unrolls shape spring clamp 13d, this spring clamp 13d one end is touched in this roller traveller 13b bottom, and it is applied upwards urge strength.The above-mentioned tip body 13c that wears roller traveller 13b during normality, squeeze grip 11 can be held upper end position at handle skeleton frame 10, when the user presses on squeeze grip 11 with hand, then above-mentioned rollers traveller 13b promptly be subjected to this push strength along skewed slot 13a to lower slider, so just oblique displacement in handle skeleton frame 10 of squeeze grip 11.And the lock housing 12 that is positioned at the connection of handle skeleton frame 10 front ends is to be installed with a swinging block 12a, this swinging block 12a branch stretches to both sides and forms a drive division 12b and an operand 12c, wherein the end of drive division 12b is the inner face position that touches in squeeze grip 11, operand 12c then is connected in the locking bolt 12d one concave part 12e that is installed with in the lock housing 12, when the user presses squeeze grip 11 with hand, then the drive division 12b of swinging block 12a is that pressurized is shifted downwards, the operand 12c of opposite side is moved up, and the locking bolt 12d interlock that while operand 12c will touch at concave part 12e produces swing counterclockwise, the actions that door lock is opened in formation in the lock housing 12 so locking bolt 12d just withdraws.Analyze the action that above-mentioned labeled door door lock commonly used is opened, though the action of user's hand, be as shown in Figure 3, press on squeeze grip 11 with vertical direction, but this squeeze grip 11 is that the direction along holder 13 skewed slot 13a moves in handle skeleton frame 10, just squeeze grip 11 has along skewed slot 13a that a vertical direction moves and a horizontal direction moves, therefore user's hand strength of acting on squeeze grip 11 just is broken down into the vertical stress component that locking bolt 12d is produced interlock, and the horizontal component that locking bolt 12d is not had at all any effect, so cause the user to expend bigger hand strength be applied to squeeze grip 11 on, and squeeze grip 11 is slided along skewed slot 13a direction and is had horizontal direction and move, it is different to cause squeeze grip 11 moving directions and user's hand to push direction, thereby influences the comfort of the press-started door lock of user's hand.

In addition, above-mentioned labeled door door lock commonly used in use, because there is the assembly of any fire safety design door lock inside not device, therefore when door lock suffers that the flame of scene of fire involves, this door lock does not possess the function that prevents that blocking is disengaged, just ignorant person may open by mistake and open fireproofing door lock and labeled door is opened, and might be subjected to the invasion and attack of indoor roaring flame and threat to life safety, and fire is spread everywhere.So safe inadequately defective of this fireproofing door lock commonly used of necessary improvement.

The utility model content

For overcoming the shortcoming of above-mentioned prior art, the purpose of this utility model is to provide a kind of door lock of pushing that is used for labeled door, can supply directly mode of operator downwards to push, squeeze grip is vertically moved, reach the result of use of comfortable press-started door lock so as to the locking bolt motion of traction door lock.

Another purpose of the present utility model is to provide a kind of door lock of pushing that is used for labeled door, when making this door lock run into the fire generation, this pushes door lock can sense high temperature, the locking bolt of door lock is maintained blocking, above-mentioned fire-proof door leaf can't be unlocked, can intercept the scene of a fire and prevent that the thing that door leaf is opened by mistake to be opened from taking place.

For reaching above-mentioned purpose, the utility model provides a kind of door lock of pushing that is used for labeled door, comprises structures such as housing, traction switch block, draw bar, slide, locking bolt.Wherein, housing is installed on this labeled door, and this housing be provided with a squeeze grip and with the door lock of this squeeze grip interlock, for the user by this squeeze grip to open door lock; The traction switch block is arranged in this squeeze grip rotationally, and this traction switch block is bending, is formed with centre end and both side ends; Draw bar is connected to a side end of this traction switch block; Slide is connected to an end of this draw bar to accept the motion of this draw bar; Locking bolt is connected on this slide, is drawn and swings by this slide.

The door lock of pushing that is used for labeled door of the present utility model is improved at the squeeze grip drive mechanism of labeled door door lock, to be positioned at the squeeze grip two ends and be connected to bearing on, should go up bearing inside and be pivoted with a traction switch block, this traction switch block is at right angles to bend body, and the one end is hubbed on this in pivot hole, bearing bottom, and the centre end of this traction switch block is to be hubbed in the pivot hole, a lower seat top that is fixed in door lock underframe plate, the other end of drawing switch block again then is hubbed on the draw bar, when traction switch block one end is subjected to bearing from the vertical pressing of squeeze grip, then drawing switch block promptly rotates along the pivot hole of lower seat, the draw bar that the other end of traction switch block will be pivoted along with swing connect is promoted to produce horizontal direction and is moved, so as to pushing away the action that makes locking bolt formation locking or unlocking.

The locking bolt of pushing door lock that is used for labeled door of the present utility model is the lock cover base that is hubbed on that can swing, be provided with a slide that affects locking bolt to move horizontally in this lock cover base content, the front end that wherein is positioned at this slide forms an oblong shape slotted eye, wear a stamen axle thus and be applied in locking bolt and this slide is connected with locking bolt, and the rear end of this slide, then be connected draw bar with on the affixed connecting rod of tip body, during so as to the downward pressure squeeze grip, make the locking bolt swing produce the function of locking or unlocking via the pulling of draw bar.

In addition, the slide that is installed with in this lock cover base is positioned at inner face, other is pivoted and one has the baffle plate that stretches out a blocking arm laterally, and this slide medial surface is embedded the fire blocks that a hot melt material is made, when the labeled door door lock suffers that the fire roaring flame burns, these fire blocks are subjected to high temperature immediately and melt, so the connected elastic component of this baffle plate produces pulling force and pulls towards the top, then locking bolt can clip when blocking on baffle plate and can't move, also can't open door lock labeled door can't be opened even if press squeeze grip, intercept the fire-proof function of stretching in the scene of a fire so have.

Description of drawings

The schematic appearance that Fig. 1 pushes door lock for general labeled door;

Fig. 2 pushes the organigram of door lock for labeled door commonly used;

Fig. 3 pushes the usage operation schematic diagram of door lock for labeled door commonly used;

Fig. 4 A to Fig. 4 D is a structure decomposition map of the present utility model;

Fig. 5 is a usage operation schematic diagram of the present utility model; And

Fig. 6 is another usage operation schematic diagram of the present utility model.

The specific embodiment

Embodiment

Shown in Fig. 4 A and Fig. 4 B, mainly construct for the door lock of pushing that is used for labeled door of the present utility model, it comprises: a housing 2 is to be installed on this labeled door, and this housing 2 is provided with a squeeze grip 25; One traction switch block 27 is arranged in this squeeze grip 25; One draw bar 28 is ends that are connected to this traction switch block 27; One slide 30 is ends that are connected to this draw bar 28, to accept the motion of this draw bar 28; One locking bolt 33 is to be connected on this slide 33, is swung by this slide 30 draws.

Housing 2 includes a lock housing 20 and leader's seat frame 23, and this lock housing 20 is used to be installed with the inner locking bolt transmission mechanism component of door lock, and its bottom is fixed on the lock housing seat board 21, and is connected on a underframe plate 22; This handle base frame 23 is the framework of concave shape, can be for being embedded at this underframe plate 22, and these underframe plate 22 two ends are installed with lower seat 24 respectively, and be provided with a pivot hole 24a on the top.

Squeeze grip 25 is available for users to hand and depresses the unlatching door lock, and it is installed with in the present frame 23, and can move up and down motion, is installed with bearing 26 respectively at these two ends, squeeze grip 25 bottom surface, and is provided with a pivot hole 26a in its bottom.

Traction switch block 27 is rectangular bending shapes, and to be connected to this lower seat 24, this traction switch block 27 is formed with centre end 27a, left part 27b and right part 27c, respectively is being provided with

pivot hole

27d, 27e, 27f on this end.

Draw bar 28 is elongated shapes, the two ends of this draw bar 28 respectively wear tip body and are connected on the pivot hole 27e of traction switch block 27 left part 27b, and be connected with a connecting rod 29 at these draw bar 28 1 ends, produce the pulling force of horizontal direction with the motion of accepting draw bar 28.

Slide 30 is to wear a tip body 29a, is connected connecting rod 29 1 ends, can be connected bar 29 and accept and produce horizontal direction by the horizontal pull of draw bar 28 and move; And a lock cover base 31 can be set at the slide place, being installed with moving horizontally of this slide 30, and this slide 30 is the pullings that are subjected to draw bar 28, in lock cover base 31 before and after horizontal slip.

Locking bolt 33 is to wear a stamen axle 31d in the lump at this slide 30 and be hubbed on the lock cover base 31 and fixed, and this locking bolt 33 can be drawn and swing by slide 30, the action of generator gate locking lock; And can in this slide 30, be installed with a baffle plate 34, and this baffle plate 34 forms the blocking arm 34a that an outward side stretches out, its middle body is elastic component one an end institute tractive as spring 34b, this spring 34b other end is fixed on the stamen axle 31e that lock cover base 31 inner tip plug, the stamen axle 31a that baffle plate 34 is then worn slide 30 by one and is hubbed on lock cover base 31 penetrates, so baffle plate 34 can be pulled up and down along stamen axle 31a.By the combination of above-mentioned each each assembly of fireproofing door lock,, get final product laborsaving and comfortable fireproofing door lock is opened and the unlocking state when the user presses squeeze grip 25 with hand with vertical direction.

With reference to Fig. 4 C, squeeze grip 25 each interlocking of inner face two ends have last bearing 26, the bottom of wherein going up bearing 26 is provided with a pivot hole 26a, this pivot hole 26a can be inserted in this for the tip body 26b that the pivot hole 27f of this traction switch block 27 right part 27c be plugged and fix, and making and drawing the tip body 26b that switch block 27 can above bearing 26 is that fulcrum is swung.The body of this traction switch block 27 is formed with a recessed rank groove 27g in addition, can be for being connected across on the draw bar 28 of an elongate in shape, wherein should draw the centre end 27a pivot hole 27d of switch block 27, be to be inserted with a tip body 24b in the 24a of the pivot hole on lower seat 24 tops and connect, and in 27b pivot hole, the left part 27e of traction switch block 27, plug a tip body 28b, in the 28a of the pivot hole of draw bar 28 and connect, when last bearing 26 is born compressing strength that squeeze grip 25 applied when moving down (shown in Fig. 5 and 6 figure), then the left part 27b of this traction switch block 27 of interlock moves down simultaneously, the tip body 24b that makes the right part 27c that draws switch block 27 comply with in the lower seat 24 pivot hole 24a is that fulcrum is swung, so the draw bar 28 that is connected is given moving horizontally towards the swaying direction generation, and then the connecting rod 29 of draw bar 28 front ends and slide 30 all move horizontally synchronously backward, the locking bolt 33 that is installed with in this slide 30, along with slide 30 tractions are swung backward and are retracted within the lock housing 20, constitute the unlocking action of unlocking.

Draw bar 28 central parts are formed with the fastener 28c of an outstanding shape, can locate at this for an end of a sheathed thrust spring 35, the other end of thrust spring 35 then is connected on the hooking sheet 24c who is embedded in lower seat 24, so, when the user does not press on squeeze grip 25 (as shown in Figure 5), then thrust spring 35 compresses the thrust that reply the back, making draw bar 28 produce the horizontal direction that returns original position moves, and then the connecting rod 29 of draw bar 28 front ends and slide 30 all move horizontally forward synchronously, the locking bolt 33 that is installed with in this slide 30, swing forward and stretch out outside the lock housing 20 along with slide 30 traction, constitute the block action of door lock.

Lock cover base 31 is to be installed with a slide 30, and the bottom is fixed on the lock housing seat board 21, make slide 30 can along lock housing seat board 21 the surface before and after slippage, wherein the pedestal left end of slide 30 (please refer to shown in Fig. 4 D) is provided with an oblong slotted eye 30a, wear a stamen axle 31a and be installed on the lock cover base 31 by this, can guide slide 30 in lock cover base 31, move forward and backward with straight direction.The pedestal right-hand member that is positioned at slide 30 in addition also is provided with an oblong slotted eye 30b, can approximately be the fan-shaped safeguard of triangle 36 one and be hubbed on jointly on the lock cover base 31 for wearing a stamen axle 31c with locking bolt 33, wherein safeguard 36 wears a stamen axle 31d in addition, be hubbed on the sidewall rim outside the lock cover base 31, locking bolt 33 then is to be installed with in lock cover base 31 pedestals, and the stamen axle 31d that wears locking bolt 33 is connected in series the shape spring 31b that unrolls in addition, this spring 31b one end contacts the end face at lock cover base 31, the other end of spring 31b then acts on the elastic force that produces on the locking bolt 33, make this locking bolt 33 be subjected to the thrust of spring 31b when normality, swing is stretched out outside lock cover base 31.

In addition, can be installed with a baffle plate 34 in slide 30 inside, this baffle plate 34 is worn and is hubbed on the lock cover base 31 by a stamen axle 31a, wherein the central authorities of baffle plate 34 are affixed by spring 34b institute, the other end of spring 34b then is fixed on the stamen axle 31e that wears lock cover base 31, by the elastic force that spring 34b is produced, pulling baffle plate 34 is upwards pulled.One side of baffle plate 34 forms an outwardly directed blocking arm 34a, this blocking arm 34a is contacted by the end of the cylindrical button column 36a that is equipped with on this safeguard 36, this button column 36a snapping one spring 36b wherein, and the other end of spring 36b snaps onto one and wears safeguard 36 and slide 30, and be installed on the stamen axle 31d of lock cover base 31, this stamen axle 31d stretches out at safeguard 36 to be among the slotted eye 36c of circular shape, pulling force by this spring 36b generation, safeguard 36 is pulled forward, because the end that this moment, safeguard 36 was provided with button column 36a can contact on baffle plate 34, makes this baffle plate 34 be the horizontal level of pulling downwards.Close because of labeled door when safeguard 36 and to contact on doorframe frame wall, then safeguard 36 is promptly upwards pulled, the one end is not contacted on baffle plate 34, so baffle plate 34 just is the horizontal level of upwards pulling, this moment, the front end of baffle plate 34 can contact in the formed concave part 33a of locking bolt 33 1 ends, cause locking bolt 33 can't be retracted in the lock housing 20 by clip, constitute the door lock blocking is kept, locking bolt can the 20 interior insurances of retraction lock housing not used function safely.

Slide 30 bottoms one sidewall is provided with post hole 30c and screw 30d, the fire blocks 37 that provide a fusible material formation are fixedly arranged on this, these fire blocks 37 relative positions are provided with guide pillar 37a, be in order in the post hole 30c that is plugged in slide 30 and be positioned, then plug fire blocks 37 circular hole 37b one screw, interlocking is in the screw 30d of slide 30 inside wall edge, fire blocks 37 are installed on the slide 30, the bottom of these fire blocks 37 forms the protuberance 37c of an oblique cone shape, this protuberance 37c has a scalene cone, be for touching on the blocking arm 34a of baffle plate 34, when being pulled bar 28, slide 30 pulls back when mobile, then the fire blocks 37 on the slide 30 promptly move horizontally synchronously backward, wherein the protuberance 37a of fire blocks 37 can push away baffle plate 34 is pulled downwards, and can not live locking bolt 33 by clip, so locking bolt 33 can be swung the unlatching door lock action of formation unlocking state backward by slide 30 tractives.

When fire takes place, when in case the labeled door door lock is attacked by fire, fire blocks 37 are understood Yin Gaowen and are melted, make these fire blocks 37 can't touch blocking arm 34a, this baffle plate 34 is by the pulling force of spring 34b and upwards pulls horizontal level, so the front end of baffle plate 34 meeting clip is in the concave part 33a of locking bolt 33, lock 33 can't be swung backward by the mobile backward tractive of slide 30, formation can't be opened door lock and keep labeled door and is blocking, so can prevent that labeled door from being opened by mistake by ignorant person during breaking out of fire opens and is subjected to the attack of flame, cause life security to be threatened, more can effectively block fire not to the four directions diffusion, the application target of performance fire safety.

Claims

1. the door lock of pushing that is used for labeled door is characterized in that, this door lock of pushing that is used for labeled door comprises:

Housing is to be installed on this labeled door, and this housing is provided with a squeeze grip, and with the door lock of this squeeze grip interlock, open door lock for the user by this squeeze grip;

The traction switch block be to be arranged on rotationally in this squeeze grip, and this traction switch block is bending, to be formed with centre end and both side ends;

Draw bar is a side end that is connected to this traction switch block;

Slide is to be connected to an end of this draw bar to accept the motion of this draw bar;

Locking bolt is to be connected on this slide, is swung by this slide draws.

2. the door lock of pushing that is used for labeled door as claimed in claim 1, it is characterized in that, this housing comprises a lock housing and leader's seat frame, this lock housing is installed with the assembly of being made up of the inner locking bolt transmission mechanism of door lock, and its bottom is fixed in a lock housing seat board, and is connected on a underframe plate, this handle base frame is the framework that is concave shape, can be for being embedded a underframe plate, these underframe plate two ends are installed with a lower seat respectively, and these two ends, squeeze grip bottom surface are installed with bearing on respectively.

3. the door lock of pushing that is used for labeled door as claimed in claim 1, it is characterized in that, this traction switch block is at right angles to bend body, and be formed with centre end and both side ends, the one end is to be hubbed in the pivot hole, bottom of bearing on this, and centre end is to be hubbed in the pivot hole, top of this lower seat of door lock underframe plate.

4. the door lock of pushing that is used for labeled door as claimed in claim 1, it is characterized in that, this draw bar is elongated shape, and its two ends respectively are equipped with a tip body, on an end that is connected the traction switch block, and be connected with a connecting rod at this draw bar one end, produce the pulling force of horizontal direction to accept this draw bar motion.

5. the door lock of pushing that is used for labeled door as claimed in claim 1 is characterized in that, this slide is to wear a tip body being connected to connecting rod one end, can be accepted by this connecting rod to produce horizontal direction by the horizontal pull of draw bar and move.

6. the door lock of pushing that is used for labeled door as claimed in claim 1 is characterized in that this slide place can be provided with a lock cover base, and being installed with moving horizontally of this slide, and this slide is to be subjected to the pulling of draw bar and horizontal slip before and after in this lock cover base.

7. the door lock of pushing that is used for labeled door as claimed in claim 6 is characterized in that, this slide one end is provided with an oblong slotted eye, wears a stamen axle and is installed on the lock cover base by this, can guide slide to move forward and backward with straight direction in lock cover base.

8. the door lock of pushing that is used for labeled door as claimed in claim 1 is characterized in that, this locking bolt wears a stamen axle at this slide and be hubbed on this lock cover base and fixed, and this locking bolt can be swung because of the slide traction.

9. the door lock of pushing that is used for labeled door as claimed in claim 6, it is characterized in that, this slide place can be installed with a baffle plate, and this baffle plate forms an outward extending blocking arm, its middle body is by an elastic component one end institute tractive, this elastic component other end then is fixed on the stamen axle that the lock cover base inner tip plugs, and the stamen axle that this baffle plate is then worn slide by one and is hubbed on lock cover base penetrates, so this baffle plate can be pulled up and down along the stamen axle.

10. the door lock of pushing that is used for labeled door as claimed in claim 1, it is characterized in that, this traction switch block body is formed with a recessed rank groove, can be for being connected across on the draw bar of an elongate in shape, in the centre end pivot hole of this traction switch block, be to plug a tip body in the pivot hole on lower seat top and connect, and plug a tip body in the pivot hole, an end of traction switch block in the pivot hole of draw bar and connect.

11. the door lock of pushing that is used for labeled door as claimed in claim 1, it is characterized in that, this draw bar central part is formed with the fastener of an outstanding shape, end for a sheathed thrust elastic component is located, this thrust elastic component can be with the thrust behind the compression reaction, act on the horizontal direction that produces the recurrence original position on the draw bar and move, and this thrust elastic component other end is to be connected on the hooking sheet that is embedded in lower seat.

12. the door lock of pushing that is used for labeled door as claimed in claim 9, it is characterized in that, the central authorities of this baffle plate are by the end institute tractive of an elastic component, and the other end is to be fixed on the tip body that the lock cover base inside top surface wears, and the stamen axle that this baffle plate is worn slide by one and is hubbed on lock cover base penetrates, so baffle plate can be pulled up and down along the stamen axle.

13. the door lock of pushing that is used for labeled door as claimed in claim 9, it is characterized in that, this baffle plate is when upwards pulling horizontal level, and the front end of this baffle plate promptly contacts on locking bolt and in the formed concave part, locking bolt can't be retracted in the lock housing by clip.

14. the door lock of pushing that is used for labeled door as claimed in claim 9, it is characterized in that, the outer side edges of this baffle plate is stretched out a blocking arm, this blocking arm can be equipped with cylindrical button column on the safeguard a end contacts, this button column hook is provided with an elastic component, and the other end of this elastic component is that hook is located at one and wears safeguard and slide and be installed on the stamen axle of lock cover base, this stamen axle is on safeguard in the slotted eye of circular shape and stretches out, and pulling force that this elastic component produces can be pulled safeguard forward.

15. the door lock of pushing that is used for labeled door as claimed in claim 14, it is characterized in that, this safeguard body slightly triangular in shape, can be located in this safeguard and locking bolt by a stamen axle and be co-located on the lock cover base, and this wears on the stamen axle of locking bolt and safeguard, can be connected in series an elastic component that unrolls shape, this elastic component one end contacts the end face at lock cover base, and the other end then acts on the elastic force that produces on the locking bolt.

16. the door lock of pushing that is used for labeled door as claimed in claim 1 is characterized in that, this slide is provided with fire blocks of being made by the hot melt material.

17. the door lock of pushing that is used for labeled door as claimed in claim 16, it is characterized in that this fire blocks bottom forms the protuberance of an oblique cone shape, this protuberance has a scalene cone, be for touching on the blocking arm of baffle plate, baffle plate is pulled downwards and can not lived locking bolt by clip so as to pushing away.