CN201110061Y

CN201110061Y - Door bolt apparatus

Info

Publication number: CN201110061Y
Application number: CNU200720075174XU
Authority: CN
Inventors: 顾杰; 徐尧
Original assignee: Shanghai Jiebaoking Developing Co Ltd
Current assignee: Shanghai Jiebaoking Developing Co Ltd
Priority date: 2007-09-29
Filing date: 2007-09-29
Publication date: 2008-09-03
Anticipated expiration: 2017-09-29

Abstract

The utility model relates to a bolt device, which comprises a power unit, a transmission unit and a plurality of opening locking units, wherein a key part of the transmission unit comprises a left and right slide plate (17) and an up and down slide plate (2), wherein a left and right driving slotted hole (1702) whose shape is an upper and lower straight line segment and a 90 degree arc segment which is tangent with the left and right slide plate (17) is arranged on the left and right slide plate (17), an upper and down diving slotted hole (202) is arranged on the up and down slide plate (2), the shape of the upper and down diving slotted hole (202) is a left and right straight line segment and a 90 degree arc segment which is connect with the left and right slide plate (17), the 90 degree arc segment uses the axis of a hand wheel (19) as a circle center, and the radius is the distance from the hole center of a shifting fork (22) to the axis of a shifting fork pin (23). The key part of the opening locking unit comprises a valve cock (7) with a special-shaped shaft (701) and a valve cock sleeve (15), the head of the valve cock (7) is a rectangle, and the valve cock sleeve (15) is equipped with a special-shaped hole (1501) which is matched with a special-shaped shaft (701). The utility model has simple structure and strong practicality, thereby preventing the impact fracture after the side surface of a safe box is opened with a hole.

Description

Bolt apparatus

Technical field

The utility model relates to a kind of bolt apparatus, particularly relates to the bolt apparatus that the anti-side in a kind of strongbox field destroys.

Background technology

Along with improving constantly of people's living standard and income level, people require more and more higher to the anti-theft feature of strongbox class equipment.Though people have carried out many innovations on the basis of traditional experience at present, and the burglar-proof mechanism of good action has also appearred much having in recent years, wherein also there is keeper pick-proof mechanism to occur, but because its defective on internal construction, still can't play proper pick-proof effect, also not prevent the function that side destroys.Because traditional keeper just in the direction of opening the door (fore-and-aft direction) with keeper locking (on casing) and do not have locking on the door shelves at left and right directions, only bring into play antitheft effect, therefore then more easily door bolt mechanism is opened as applying impact force to keeper in the casing side with the flexural strength of casing itself.

The utility model content

The purpose of this utility model provides a kind of bolt apparatus of anti-side.

The purpose of this utility model is achieved through the following technical solutions:

A kind of bolt apparatus, its characteristics are, it comprises a power unit, one gear unit by this power unit driving, some that be connected with this gear unit, have a unlatching locking unit that revolves bolt telescopic drive mechanism and revolve the bolt rotary drive mechanism, wherein this gear unit comprises that one is installed in left and right sides slide plate on the door-plate by the horizontal mounting hole on it, and this left and right sides slide plate is provided with about one and drives slotted eye, and this left and right sides driver slot hole shape is straightway and the 90 ° arc sections tangent with it about in the of; One is installed in slide plate up and down on this door-plate by the vertical mounting hole on it, slide plate is provided with one and drives slotted eye up and down up and down, the driver slot hole shape is a left and right sides straightway and connected one 90 ° of arc sections up and down, these 90 ° of arc sections are the center of circle with the axle center of handwheel (19), are radius with the distance in shift fork (22) center, hole to shifting fork pin (23) axle center.

Wherein, this bolt apparatus comprises that one revolves bolt telescopic drive mechanism with this and revolves the bolt that revolves that the bolt rotary drive mechanism is connected with this, and its head is a rectangle.

Wherein, this revolves bolt telescopic drive mechanism and comprises that one is fixed in the connection stock on this left and right sides slide plate, one fastening this revolve bolt and this connection stock revolve the bolt nut.

Wherein, this revolves the bolt rotary drive mechanism and comprises that one is fixed in this up and down pull bar driving mechanism on the slide plate, and one be connected with pull bar in this pull bar driving mechanism revolve the bolt cover, this revolves bolt and puts and be provided with an irregularly-shaped hole that cooperates with this special-shaped axis that revolves bolt, this outer circumference surface that revolves bolt cover (15) is provided with a groove (1503) that can be embedded into this pull bar (6) head, one straight pin (16) wears this and revolves the hinge hole (1502) on the bolt cover (15) and the head tie rod hole (601) of this pull bar (6), with pull bar (6) with to revolve bolt cover (15) hinged.

Wherein, this pull bar driving mechanism comprises: one is welded on this up and down draw-bar seat on the slide plate, which is provided with the pull rod slot that can be embedded into this pull bar afterbody; One can wear the stay rod pin in the afterbody tie rod hole of the pull bar pin-and-hole of this draw-bar seat and this pull bar.

Wherein, this special-shaped axis that revolves bolt is the semicylinder that has a plane, and this revolves the semicircle endoporus of irregularly-shaped hole for cooperating with this special-shaped axis that bolt puts.

Wherein, this special-shaped axis that revolves bolt is provided with a keyway, and this revolves in the irregularly-shaped hole of bolt cover and is provided with the key that cooperates with this keyway.

Wherein, this power unit comprises that one is arranged in the handwheel hold-down nut that the handwheel and in the door-plate is mated; The shift fork fixture that one shift fork and that is sheathed on this handwheel axle head is mated; One is fixed on this shift fork and can drives left and right sides slide plate and the shifting fork pin of skateboarding up and down.

Wherein, this bolt apparatus comprises that also one is located at the handwheel axle sleeve on the door-plate.

Wherein, this bolt apparatus also comprises a shift fork fixture and a handwheel that is installed on this door-plate, this shift fork fixture be one with this handwheel be the shift fork hold-down screw or the shift fork hold-down nut of threaded engagement.

Wherein, this bolt apparatus also comprises a slide plate fixture, its be one with this door-plate on positioning stud be the slide plate hold-down screw or the slide plate hold-down nut of threaded engagement.

Wherein, this bolt apparatus comprises that also one revolves the bolt fixture, and it is that one to revolve bolt with this be revolving the bolt hold-down screw or revolving the bolt hold-down nut of threaded engagement.

Positive progressive effect of the present utility model is:

1, simple in structure, principle is clear, easy to make and practical;

2, realized the seamless snap close of keeper and door shelves, really prevented after the perforate of strongbox side impact failure, thereby promoted anti-theft capability greatly keeper.

Description of drawings

Fig. 1 is the STRUCTURE DECOMPOSITION schematic diagram of the utility model preferred embodiment.

Fig. 2 is along on the direction of the door-plate back side, the maximum opening schematic diagram of the utility model preferred embodiment.

Fig. 3 is along on the door-plate side surface direction, the maximum opening schematic diagram of the utility model preferred embodiment.

Fig. 4 is along on the direction of the door-plate back side, the maximum snap close view of the utility model preferred embodiment.

Fig. 5 is along on the door-plate side surface direction, the maximum snap close view of the utility model preferred embodiment.

Fig. 6 is the elevation of left and right sides slide plate in the utility model preferred embodiment.

Fig. 7 is the schematic perspective view of left and right sides slide plate in the utility model preferred embodiment.

Fig. 8 is the elevation of slide plate up and down in the utility model preferred embodiment.

Fig. 9 is for revolving the schematic perspective view of bolt in the utility model preferred embodiment.

Figure 10 is the elevation that revolves bolt among Fig. 9.

Figure 11 is for revolving the schematic perspective view of bolt cover in the utility model preferred embodiment.

Figure 12 is the schematic diagram along the irregularly-shaped hole direction that revolves the bolt cover among Figure 11.

Figure 13 is the schematic diagram along the groove direction that revolves the bolt cover among Figure 11.

The corresponding relation of mark and part is as follows among the figure:

1: the shift fork hold-down screw

2: slide plate 201 up and down: vertical mounting hole 202: drive slotted eye up and down

3: draw-bar seat 301: pull rod slot 302: the pull bar pin-and-hole

4: stay rod pin

5: the slide plate hold-down screw

6: pull bar 601: head tie rod hole 602: the afterbody tie rod hole

7: revolve bolt 701: special-shaped axis 702: tailing screw flight

8: door shield 801: the rectangle keyhole

9: connection stock 901: the connection keyhole

10: revolve the bolt nut

11: connection bolt seat 1101: supported hole

12: revolve bolt seat 1201: revolve keyhole

13: revolve the bolt hold-down nut

14: door-plate

15: revolve bolt cover 1501: irregularly-shaped hole 1502: hinge hole 1503: groove

16: straight pin

17: left and right sides slide plate 1701: horizontal mounting hole 1702: about drive slotted eye

18: positioning stud

19: handwheel

20: the handwheel axle sleeve

21: the handwheel hold-down nut

22: shift fork

23: shifting fork pin

The specific embodiment

Provide the utility model preferred embodiment below in conjunction with accompanying drawing, to describe the technical solution of the utility model in detail.

Present embodiment is one to be applied in the bolt apparatus on the strongbox, divides two big steps to be introduced below.

One, at first introduces the structure of this safe door pin device.

Show the exploded view of the bolt apparatus on the strongbox as Fig. 1.This device is divided into three unit by function, is respectively power unit, gear unit and unlatching locking unit, has two to open the locking unit among the figure, is connected with gear unit by pull bar respectively.Below according to the order of opening the involved part of locking strongbox, the part of introducing each unit successively and comprising.

1, power unit

As Fig. 1, door-plate 14 is reference for installation of keeper locking mechanism, and each part is all installed with reference to this benchmark in this device.Handwheel 19 is arranged in door-plate 14 and the handwheel axle sleeve 20, and handwheel axle sleeve 20 is used to guarantee the smooth rotation of hand wheel shaft.Shift fork 22 is enclosed within on the axle head of handwheel 19, is screwed into by shift fork hold-down screw 1 in the internal thread axis hole of handwheel 19 to be fixed.Shifting fork pin 23 is riveted on the shift fork 22, by handwheel 19 turning moment is passed to the part in the gear unit by shift fork 22, shifting fork pin 23.

2, gear unit

One the location double-screw bolt 18 is welded on the door-plate 14, by slide plate hold-down screw 5 will be enclosed within on this positioning stud left and right sides slide plate 17 and up and down slide plate 2 carry out relative fixed.

This left and right sides slide plate 17 is sheathed on this positioning stud 18 by the horizontal mounting hole 1701 on it, and this horizontal mounting hole 1701 can limit the move left and right position of this left and right sides slide plate 17.This left and right sides slide plate 17 is provided with about one and drives slotted eye 1702 (seeing Fig. 6, Fig. 7 for details), drives slotted eye 1702 shapes about this and is made up of straightway about in the of one and 90 ° of arc sections tangent with it.

And slide plate 2 is sheathed on this positioning stud 18 by the vertical mounting hole 201 on it up and down, and this vertical mounting hole 202 can limit the position that moves up and down of slide plate up and down.Slide plate 2 is positioned at this left and right sides slide plate 17 skins up and down, which is provided with one and drive slotted eye 202 (seeing Fig. 8 for details) up and down, this drives slotted eye 202 shapes up and down and is made up of a left and right sides straightway and connected one 90 ° of arc sections, these 90 ° of arc sections are the center of circle with the axle center of handwheel (19), are radius with the distance in shift fork (22) center, hole to shifting fork pin (23) axle center.

Shifting fork pin 23 in the above-mentioned power unit promptly is arranged in about this and drives slotted eye 1702 and this and drive in the slotted eye 202 up and down and can drive this left and right sides slide plate 17 and slide plate 2 motions up and down, realizes the unlatching and the locking of strongbox.

3, open the locking unit

The up and down unlatching locking unit of two symmetries is arranged among Fig. 1, and this unlatching locking unit comprises that one revolves bolt telescopic drive mechanism and and revolves the bolt rotary drive mechanism, and this revolves and also is provided with a pull bar driving mechanism on the bolt rotary drive mechanism.

As shown in Figure 1, also be welded with a draw-bar seat 3 on the slide plate 2 up and down, which is provided with the pull rod slot 301 that can be embedded into the pull bar afterbody; One can wear the stay rod pin 4 in the afterbody tie rod hole 602 of the pull bar pin-and-hole 302 of this draw-bar seat 3 and pull bar 6.This unit also comprises a pull bar 6, and this pull bar 6 is after revolving the bolt straight line and moving locking and put in place, realizes revolving the actuating member of 90 ° of rotating latch of bolt.This pull bar afterbody is provided with afterbody tie rod hole 602, is connected with draw-bar seat 3 by stay rod pin 4, and can be around these stay rod pin 3 rotations; Head is provided with head tie rod hole 601, by straight pin 16 with revolve bolt cover 15 and be connected, and can be around these straight pin 16 rotations.

This unit comprises that also one revolves bolt 7, it passes connection bolt seat 11, connection stock 9, revolve bolt nut 10, revolve bolt seat 12, to be inserted in this tailing screw flight that revolves bolt 7 702 fixing by revolving bolt hold-down nut 13 to revolve bolt cover 15 backs, be to form snap close after stretching into a shelves locking and half-twist, play the key component of pick-proof, anti-side destruction carrier.This nose shape that revolves bolt 7 is a rectangle, and its special-shaped axis 701 matches with this irregularly-shaped hole 1501 that revolves bolt cover 15 and can revolve 15 rotations of bolt cover with this.As Fig. 9 and Figure 10, the processed plane of the damaged surface of this special-shaped axis 701 is so that cooperate with revolving 15 rotations of bolt cover with this irregularly-shaped hole 1501.

This unit comprises that also one is welded on the connection bolt seat 11 on the door-plate 14 and revolves bolt seat 12, and this connection bolt seat 11 is to support to revolve the supporting body that bolt 7 moves and rotates, and also is the main beaer that is subjected to outside destroy.And the supported hole 1101 of keyhole 1201 on connection bolt seat 11 that revolve that revolves on the bolt seat 12 constitutes double base, guaranteed to revolve bolt 7 straight lines and moved reliability with 90 ° of rotations.Be stuck in this and revolve in the bolt seat 12 and revolve bolt cover 15, and the special-shaped axis 701 that is revolved bolt 7 passes this irregularly-shaped hole 1501 and locate, it is by pull bar 6 driven rotary, is to revolve the bolt 7 rectilinear motions back that puts in place to implement to revolve 90 ° of actuating members that rotate rear catch of bolt.To shown in Figure 13, this revolves bolt and overlaps 15 cylindricals and be provided with one and can be embedded groove 1503, one straight pins 16 into this rod head and wear this and revolve the hinge hole 1502 on the bolt cover 15 and the head tie rod hole 601 of this pull bar 6 as Figure 11, with pull bar 6 with revolve bolt and overlap 15 hinged.

Be welded with a stock 9 on the left and right sides slide plate 17 of above-mentioned gear unit, revolve bolt 7 and revolved bolt nut 10 and fix on it, rotate but can join in the keyhole 901 at it.Under the driving of handwheel 19 and shifting fork pin 23, left and right sides slide plate 17 will move along the horizontal mounting hole 1701 on it and drive connection stock 9 and do straight line and move.Under the effect of revolving bolt nut 10, force and revolve bolt 7 and also move as straight line, thus rectangle keyhole 801 outer unlatchings of realizing stretching into lockings in the rectangle keyhole 801 of a shelves 8 or withdrawing from a shelves 8.

Two, introduce the locking and the opening movement process of strongbox below.

1, latch motion process

As shown in Figures 2 and 3, strongbox is in the complete opening state, this moment shifting fork pin 23 be in left and right sides slide plate 17 about drive 17021 of slotted

eye

1702 and 2021 points that drive slotted eye 202 up and down of slide plate 2 up and down.

Desire to make strongbox to lock, rotate counterclockwise handwheel 19 and drive shifting fork pin 23 and begin to do clockwise circular motion from 2021 of slotted eye 202 of driving up and down of slide plate 2 up and down.Handwheel is when 0 ° forwards 90 ° to, and the slotted eye 202 that drives up and down of the movement locus of shifting fork pin 23 and slide plate 2 up and down fits like a glove from 2021 o'clock to 2022 o'clock track, so slide plate 2 does not temporarily move up and down.But shifting fork pin 23 drives slotted eye 1702 and make circular motion in 17021 o'clock to 17022 o'clock straightway about left and right sides slide plate 17 at this moment, forces left and right sides slide plate 17 to move as straight line to the right, also moves as straight line so revolve bolt 7 by 9 drives of connection stock.When shifting fork pin 23 turns to 2022 points that drive slotted eye 202 up and down of slide plate 2 up and down, driving 17022 of slotted eye 1702 about this moment, left and right sides slide plate 17 moved to overlaps with 2022 of slotted eye 202 of driving up and down of slide plate 2 up and down, promptly revolve in the rectangle keyhole 801 that bolt 7 stretched into door shield 8, finish the locking of revolving bolt 7 and door shield 8.

Be rotated further handwheel when 90 ° forward 180 ° to, drive slotted eye 1702 about the movement locus of shifting fork pin 23 and left and right sides slide plate 17 and fit like a glove, so 17 stop motions of left and right sides slide plate from 17022 o'clock to 17023 o'clock track.But this moment, shifting fork pin 23 was made circular motion driving up and down in the slotted eye 202 of slide plate 2 up and down in 2022 o'clock to 2023 o'clock straightway, and forcing up and down, slide plate 2 moves as straight line downwards.Because draw-bar seat 3 and pull bar 6 are hinged by 4 of stay rod pins, the other end of pull bar 6 is with to revolve bolt cover 15 hinged by 16 of straight pins, so pull bar 6 pullings are revolved bolt cover 15 around the rotational of revolving bolt 7.Because the irregularly-shaped hole 1501 that revolves on the bolt cover 15 is worked in coordination with the special-shaped axis 701 that revolves on the bolt 7, driven and revolve bolt 7 and rotate again so revolve bolt cover 15.When shifting fork pin 23 drives about left and right sides slide plate 17 in the slotted eye 1702 when forwarding 17023 points (promptly in the slotted eye of driving up and down 202 on the slide plate 2 up and down from 2022 o'clock to 2023 o'clock) to from 17022, the angle that bolt 7 rotations are revolved in pull bar 6 drives this moment just reaches 90 °, be best snap close position, see the quadrature position that revolves the rectangle keyhole 801 on bolt 7 and the door shield 8 among Fig. 5, the door of strongbox is also just by snap close.

2, opening movement process

The unlatching of strongbox is exactly the backward motion of strongbox locking.

As shown in Figure 4 and Figure 5, strongbox is in complete lock-out state, this moment shifting fork pin 23 be in left and right sides slide plate 17 about drive 17023 of slotted eye 1702 and 2023 points that drive slotted eye 202 up and down of slide plate 2 up and down.

Desire to make strongbox to open, clockwise rotate handwheel 19 and drive shifting fork pin 23 and drive 17023 of slotted eye 1702 from about the left and right sides slide plate 17 and begin to do counterclockwise circumference and rotate.Handwheel drives about the movement locus of shifting fork pin 23 and left and right sides slide plate 17 that the tracks from 17023 o'clock to 17022 o'clock fit like a glove in the slotted eye 1702 when 0 ° forwards 90 ° to, so left and right sides slide plate 17 does not temporarily move.But this moment, shifting fork pin 23 was made circular motion at the slotted eye 202 that drives up and down of slide plate 2 up and down in 2023 o'clock to 2022 o'clock straightway, and forcing up and down, slide plate 2 upwards moves as straight line.Because draw-bar seat 3 and pull bar 6 are hinged by 4 of stay rod pins, the other end of pull bar 6 is with to revolve bolt cover 15 hinged by 16 of straight pins, so pull bar 6 pullings are revolved bolt cover 15 around the rotational of revolving bolt 7.Because the irregularly-shaped hole 1501 that revolves on the bolt cover 15 is worked in coordination with the special-shaped axis 701 that revolves on the bolt 7, driven and revolve bolt 7 and rotate again so revolve bolt cover 15.When shifting fork pin 23 drives about left and right sides slide plate 17 in the slotted eye 1702 when forwarding 17022 points (promptly in the slotted eye of driving up and down 202 at slide plate 2 up and down from 2023 o'clock to 2022 o'clock) to from 17023, the angle that bolt 7 past back rotation are revolved in pull bar 6 drives this moment just reaches 90 ° again, the rectangle head that revolves bolt 7 just with door shield 8 on rectangle keyhole 801 align, see the position that overlaps of the rectangle keyhole 801 that revolves among Fig. 3 on bolt 7 and the door shield 8.

Be rotated further handwheel 19 when 90 ° forward 180 ° to, the movement locus of shifting fork pin 23 and slide plate 2 up and down drive up and down that the tracks from 2022 o'clock to 2021 o'clock fit like a glove in the slotted eye 202, so slide plate 2 stop motions up and down.But shifting fork pin 23 drove in the slotted eye 1702 about left and right sides slide plate 17 and make circular motion in 17022 o'clock to 17021 o'clock straightway this moment, forced left and right sides slide plate 17 to move as straight line left.When shifting fork pin 23 turns to 2021 points that drive slotted eye 202 up and down of slide plate 2 up and down, drive 17021 points of slotted eye about left and right sides slide plate 17 has moved at this moment, overlap with 2021 of slotted eye 202 of driving up and down of slide plate 2 up and down, promptly revolve outside the rectangle keyhole 801 that bolt 7 withdraws from door shield 8 fully, finish the dropout of revolving bolt 7 and door shield 8, this moment, the door of strongbox can be opened.

By above motion process as can be known, the utility model is the decomposition campaign that the compound motion that a kind of rectilinear motion and circumference the rotatablely move rectilinear motion that changes keeper into and the segmentation that rotatablely moves are carried out, thereby closely be locked in safe body at fore-and-aft direction and left and right directions keeper, exist the situation in bigger gap when having avoided keeper to lock between the two, increased the pick-proof ability of strongbox with the door shelves.

The utility model is not limited to above embodiment, also can not adopt handwheel to drive the mode of shift fork and shifting fork pin rotation such as power unit, and replace with other modes of the prior art, as long as can reach the effect that drives above-mentioned gear unit orbiting motion on request.Key point of the present utility model is to have the slide plate up and down and the left and right sides slide plate of unique shape; and have unique shape special-shaped axis revolve bolt and have a unique shape irregularly-shaped hole revolve the bolt cover, so long as adopted the scheme of above-mentioned one or several key point all to drop within the protection domain of the present utility model.

Claims

1, a kind of bolt apparatus, it is characterized in that, it comprises a power unit, one gear unit by this power unit driving, some that be connected with this gear unit, have a unlatching locking unit that revolves bolt telescopic drive mechanism and revolve the bolt rotary drive mechanism, wherein this gear unit comprises that one is installed in left and right sides slide plate (17) on the door-plate (14) by the horizontal mounting hole (1701) on it, this left and right sides slide plate (17) is provided with about one and drives slotted eye (1702), drives slotted eye (1702) about this and is shaped as straightway and the 90 ° arc sections tangent with it about in the of one; One is installed in slide plate up and down (2) on this door-plate (14) by the vertical mounting hole (201) on it, slide plate (2) is provided with one and drives slotted eye (202) up and down up and down, this drives slotted eye (202) up and down and is shaped as a left and right sides straightway and connected one 90 ° of arc sections, these 90 ° of arc sections are the center of circle with the axle center of handwheel (19), are radius with the distance in shift fork (22) center, hole to shifting fork pin (23) axle center.

2, bolt apparatus as claimed in claim 1 is characterized in that, this bolt apparatus comprises that one revolves bolt telescopic drive mechanism with this and revolves bolt (7) with this revolves that the bolt rotary drive mechanism is connected, and its head is a rectangle.

3, bolt apparatus as claimed in claim 2 is characterized in that, this revolves bolt telescopic drive mechanism and comprises that one is fixed in the connection stock (9) on this left and right sides slide plate (17), one fastening this revolve bolt (7) and this connection stock (9) revolve bolt nut (10).

4, bolt apparatus as claimed in claim 3, it is characterized in that, this revolves the bolt rotary drive mechanism and comprises that one is fixed in this up and down pull bar driving mechanism on the slide plate (2), and one be connected with pull bar (6) in this pull bar driving mechanism revolve bolt cover (15), this revolves bolt cover (15) and is provided with an irregularly-shaped hole (1501) that cooperates with this special-shaped axis (701) that revolves bolt (7), this outer circumference surface that revolves bolt cover (15) is provided with a groove (1503) that can be embedded into this pull bar (6) head, one straight pin (16) wears this and revolves the hinge hole (1502) on the bolt cover (15) and the head tie rod hole (601) of this pull bar (6), with pull bar (6) with to revolve bolt cover (15) hinged.

5, bolt apparatus as claimed in claim 4 is characterized in that, this pull bar driving mechanism comprises: one is welded on this up and down draw-bar seat (3) on the slide plate (2), which is provided with the pull rod slot (301) that can be embedded into this pull bar afterbody; One can wear the stay rod pin (4) in the afterbody tie rod hole (602) of the pull bar pin-and-hole (302) of this draw-bar seat (3) and this pull bar (6).

6, bolt apparatus as claimed in claim 5 is characterized in that, this special-shaped axis (701) that revolves bolt (7) is for having the semicylinder on a plane, and this revolves the semicircle endoporus of irregularly-shaped hole (1501) for cooperating with this special-shaped axis (701) on the bolt cover (15).

7, bolt apparatus as claimed in claim 5 is characterized in that, this special-shaped axis (701) that revolves bolt (7) is provided with a keyway, and this revolves in the irregularly-shaped hole (1501) of bolt cover (15) and is provided with the key that cooperates with this keyway.

8, bolt apparatus as claimed in claim 7 is characterized in that, this power unit comprises that one is arranged in the handwheel hold-down nut (21) that the handwheel (19) and in the door-plate is mated; The shift fork fixture that one shift fork (22) and that is sheathed on this handwheel axle head is mated; One is fixed in this shift fork (22) goes up and can drive left and right sides slide plate (17) and slide plate (2) shifting fork pin (23) of moving up and down.

As the described bolt apparatus of arbitrary claim in the claim 1 to 8, it is characterized in that 9, this bolt apparatus comprises that also one is located at the handwheel axle sleeve (20) on the door-plate (14).

10, bolt apparatus as claimed in claim 9, it is characterized in that, this bolt apparatus comprises that also a shift fork fixture and is installed in the handwheel (19) on this door-plate (14), this shift fork fixture be one with this handwheel (19) be the shift fork hold-down screw (1) or the shift fork hold-down nut of threaded engagement.

11, bolt apparatus as claimed in claim 10 is characterized in that, this bolt apparatus also comprises a slide plate fixture, its be one with this door-plate (14) on positioning stud (18) be the slide plate hold-down screw (5) or the slide plate hold-down nut of threaded engagement.

12, bolt apparatus as claimed in claim 11 is characterized in that, this bolt apparatus comprises that also one revolves the bolt fixture, and it is one to revolve bolt (7) with this and be the revolving the bolt hold-down screw or revolving bolt hold-down nut (13) of threaded engagement.