CN101691824A

CN101691824A - Tamper-resistant bolt structure

Info

Publication number: CN101691824A
Application number: CN200910153095A
Authority: CN
Inventors: 王勇军
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-09-30
Filing date: 2009-09-30
Publication date: 2010-04-07
Anticipated expiration: 2029-09-30
Also published as: CN101691824B

Abstract

The invention relates to a tamper-resistant bolt structure comprising a main bolt head (2) and is characterized by comprising a secondary bolt head (3) and a connecting rod (4), wherein the main bolt head is internally provided with a vertical hole (21) arranged in a penetrating mode and a lateral hole (22) penetrating through the rear end surface of a main bolt head (1); the secondary bolt head is positioned in the vertical hole and can slide up and down correspondingly to the vertical hole so as to extend out or retract into the main bolt head; the front end of the connecting rod passes through the horizontal hole and then is connected with the secondary bolt head; the middle of the connecting rod is connected in the horizontal hole by a hinge pin in a rotating mode so as to ensure that the connecting rod swings along the hinge pin to drive the secondary bolt head to extend out or retract into the main bolt head; and the outside of the main bolt head is provided with a driving structure driving the connecting rod to swing. The structure has different realization principles with the existing inverse hooking bolt structure, the connecting rod in the structure does not need to rotate along the axis thereof, and the invention uses the lever principle to pry the secondary bolt head to extend out or retract into the main bolt head and has easy and practical realization mode.

Description

Pick-proof door bolt structure

Technical field

The present invention relates to a kind of pick-proof door bolt structure, this bolt structure can be applicable on various strongboxs, Theft-proof cabinet, hutch, file cabinet, weapon cabinet, strong-room and the home-use security door.

Background technology

Existing its structure of safe door mainly comprises doorframe, be articulated in the door body on the doorframe and be arranged on bolt structure between a body and the doorframe, general bolt structure comprises the bolt that is arranged on a jam plate at the body back side and links with jam plate, and then the respective side bolt offers the door bolt hole on doorframe.And bolt its be cylindric, the cylindrical hole that door bolt Kong Zewei and bolt match.There are some defectives in this safe door, if lawless person's sled is not lock, but the frame of forcing open the door, owing to be without any hindering structure between bolt and the door bolt hole, as long as the lawless person only need pry open a side of doorframe a little, the bolt on the door body just can be easy to deviate from the door bolt hole of doorframe, thereby opens the safe door like this, the lawless person is taken advantage of a weak point, so the safety of this safe door is not enough.At this present situation, people's pair of latches structure has been done a large amount of improvement.

As a patent No. is that the Chinese utility model patent " inverted hook type pick-proof bolt apparatus " of ZL96229428.4 (notification number is CN2269454Y) has disclosed the structure so a kind of, the anti-formula pick-proof bolt apparatus that colludes, it comprises a door, door lock and keeper axle, have a doorframe on the door, open a slot on the doorframe, one end of keeper axle has a rectangular blocks, this rectangular blocks can be inserted in the described slot, it is characterized in that: sliding sleeve of cover on the keeper axle, sliding sleeve is provided with a tooth bar, this tooth bar can be meshed by the gear that handle rotates with one, has one on the sliding sleeve and is radially 90 ° oblique elongated slot, and a pin matches with this elongated slot.The oblong aperture across of the pane shape of half-twist side door bolt and doorframe intersects after keeper is inserted into frame hole, and keeper hooks doorframe, and keeper can not deviate from doorframe, plays the pick-proof purpose.

And for example an application number is that the Chinese invention patent " being used for the door bolt mechanism on the strongbox " of ZL200510060496.2 (publication number is CN1730886Y) has disclosed a kind of such structure, a kind of door bolt mechanism that is used on the strongbox, include the keeper frame and revolve bolt, revolving the bolt end is a special-shaped bolt head, be fixed with on the described keeper frame and revolve the bolt fairlead, the described bolt that revolves inserts slidably and revolves in the bolt fairlead, and revolving bolt and fairlead can relatively rotate, and on fairlead, have " L " shape chute hole, on fairlead, be equipped with slidably drive socket, and on drive socket, have with " L " shape chute hole and become the inclined hole of a gradient, and have connector one end to insert inclined hole and pass " L " shape chute hole and revolve bolt and fix.

The principle that above-mentioned two patent applications utilize is similar, and when locking, around self axis rotation, the special-shaped part of its head catches on doorframe door bolt hole inwall, reaches the purpose that bolt can not be deviate from from the door bolt hole easily by bolt, thereby strengthens the pick-proof of safety cabinet.But it has a common shortcoming, and bolt and revolve a fit structure is arranged between the bolt fairlead could be realized bolt around its axis rotation purpose, so the structure more complicated.

Summary of the invention

Technical problem to be solved by this invention is to provide a kind of pick-proof door bolt structure simple and reasonable, easy to assembly at above-mentioned prior art present situation, and this bolt structure has the good advantage of pick-proof performance equally.

The present invention solves the problems of the technologies described above the technical scheme that is adopted: a kind of pick-proof door bolt structure, comprise that the master who is located at the door-plate back side and the horizontal slippage of door-plate relatively fastens head with a bolt or latch, it is characterized in that: this bolt structure also comprises time door bolt head and connecting rod, has the transverse holes that a main door bolt rear end face is run through in the vertical hole and of running through setting in the described main door bolt head, the front end of this transverse holes communicates with vertical hole, described time door bolt head is positioned at vertical hole and relatively vertically slippage and stretching out or the main door bolt head of indentation about the hole, the front end of described connecting rod is connected with described door bolt head after passing transverse holes, the middle part of connecting rod be rotatably connected in the transverse holes by bearing pin so that connecting rod around the swing of bearing pin can drive that time door bolt head stretches out or the main door bolt head of indentation in, outside being provided with of main door bolt head drives the drives structure that connecting rod is swung.

Above-mentioned drives structure comprises the guide strip that is fixed on the door-plate back side, has the guiding slotted eye on this guide strip, and this guiding slotted eye comprises back laterally straight trough hole portion and tilted slotted hole portion at least, and described tilted slotted hole portion one end is communicated with the horizontal straight trough hole portion in back; The rear end of described connecting rod is connected with the protruding lead of side, and this lead stretches in the described guiding slotted eye and can slippage in this leads slotted eye; Be positioned under the horizontal straight trough hole portion in the back internal state at lead, the main door bolt head of an inferior door bolt indentation is positioned under the anterior state of tilted slotted hole portion at lead, and inferior door bolt head stretches out main door bolt head.

This is the drives structure that a kind of passive driving connecting rod simple in structure is swung, by the horizontal slippage of door-plate relatively of main door bolt head, drive time door bolt head and connecting rod also with its horizontal slippage, the lead that is connected with the connecting rod rear end is horizontal straight trough hole portion and tilted slotted hole portion in the back just, connecting rod is in the horizontal straight trough hole portion slippage stage along the back, the first master's door bolt head that directly is positioned at of inferior door bolt, along with tilted slotted hole portion position is arrived in the connecting rod slippage, connecting rod just can be along the tilted slotted hole subordinate sliding or on move, then drive on the relative bearing pin in connecting rod rear end and move or move down, connecting rod is swung around bearing pin, drive that time door bolt head link to each other with the connecting rod front end stretches out up or down or the main door bolt of indentation in.This drives structure only relates to guide strip and two parts of lead, and overall structure is simple and be convenient to assembling.Certainly also can adopt other drives structure, as under the main door bolt head situation that laterally reach puts in place, adopt the drives structure that directly drives the connecting rod swing, this drives structure can be by being arranged on the lock construction linking rod structure drive connecting rod swing again on the door-plate.

Horizontal straight trough hole portion before above-mentioned guiding slotted eye also comprises, laterally straight trough hole portion and preceding horizontal straight trough hole portion are communicated with the back respectively at described tilted slotted hole portion two ends; Be positioned under the horizontal straight trough hole portion in the back internal state at lead, the main door bolt head of an inferior door bolt indentation, under the horizontal straight trough hole portion internal state, inferior door bolt head stretches out main door bolt head before lead is positioned at.Horizontal straight trough hole portion can stretch out under the main door bolt head status at inferior door bolt head before being provided with, and in the horizontal straight trough hole portion, can guarantee that more connecting rod is positioned at this position before lead can be shelved on.In fact connecting rod also can be realized the locking of connecting rod relative position by the locking to main door bolt head.

Above-mentioned connecting rod front end is plugged in the jack of fastening with a bolt or latch on the rear end face for described time after passing transverse holes.Because connecting rod itself is connected in the axial hole by bearing pin, so do not need firm annexation between connecting rod and time door bolt head, this connecting rod mainly satisfies and can promote inferior door bolt the with a bolt or latch stretch out or the main door bolt of indentation gets final product under the situation of connecting rod swing.

Above-mentioned time door bolt head has two, and one of them time door bolt head protrudes upward or the main door bolt head of indentation, and another time door bolt head stretches out downwards or the main door bolt head of indentation.Adopt the safety that two times the door bolt head can further improve this bolt structure.These two times the door bolt head can stretch out or indentation from main first end face of door bolt simultaneously, and preferably one door bolt head protrudes upward or the main door bolt head of indentation, and another time door bolt head stretches out downwards or the main door bolt head of indentation, also can have only the door bolt head certainly one time.

Above-mentioned time door bolt head has two, and one of them time door bolt head protrudes upward or the main door bolt head of indentation, and another time door bolt head stretches out downwards or the main door bolt head of indentation; With protrude upward or time corresponding guide strip of door bolt head of the main door bolt head of indentation on back horizontal straight trough hole portion front end and tilted slotted hole portion on be communicated with; With stretch out downwards or time corresponding guide strip of door bolt head of the main door bolt head of indentation on back horizontal straight trough hole portion front end hold with the tilted slotted hole subordinate and be communicated with.

Above-mentioned time door bolt head has two, and one of them time door bolt head protrudes upward or the main door bolt head of indentation, and another time door bolt head stretches out downwards or the main door bolt head of indentation; With protrude upward or time corresponding guide strip of door bolt head of the main door bolt head of indentation on back horizontal straight trough hole portion front end and tilted slotted hole portion on be communicated with, the rear end of preceding horizontal straight trough hole portion is held with the tilted slotted hole subordinate and is communicated with; With stretch out downwards or time corresponding guide strip of door bolt head of the main door bolt head of indentation on back horizontal straight trough hole portion front end hold with the tilted slotted hole subordinate and be communicated with, be communicated with on the rear end of preceding horizontal straight trough hole portion and the tilted slotted hole portion.

Compared with prior art, the invention has the advantages that: this bolt structure is under a main door bolt overhanging state, simultaneously by under the effect of connecting rod drives structure, connecting rod is around the axis swing of bearing pin, time door bolt head that drive links to each other with the connecting rod front end stretches out or the main door bolt head of indentation up or down, play with prior art in the fixed purpose of the anti-hook lock of bolt structure, pick-proof is effective, this structure is different with the realization principle of existing inverted hook type bolt structure, connecting rod in this structure need not around self axis rotation, it utilizes lever principle to prize time the door bolt head to stretch out or the main door bolt head of indentation, and implementation is more simple and practical.

Description of drawings

Fig. 1 is the schematic perspective view one (released state) of the embodiment of the invention;

Fig. 2 is the schematic perspective view two (released state) of the embodiment of the invention;

Fig. 3 is the schematic perspective view three of the embodiment of the invention (released state and remove the door bolt plate);

Fig. 4 is the three-dimensional cutaway view (released state) of the embodiment of the invention;

Fig. 5 is the schematic perspective view one (lock-out state) of the embodiment of the invention;

Fig. 6 is the schematic perspective view two (lock-out state) of the embodiment of the invention;

Fig. 7 is the schematic perspective view three of the embodiment of the invention (lock-out state and remove the door bolt plate);

Fig. 8 is the three-dimensional cutaway view (lock-out state) of the embodiment of the invention;

Fig. 9 is the perspective view of the embodiment of the invention with time corresponding guide strip of door bolt head that protrudes upward main door bolt head;

Figure 10 is the perspective view of the embodiment of the invention with time corresponding guide strip of door bolt head that stretches out main door bolt head downwards;

The specific embodiment

Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.

Shown in Fig. 1～10, be a preferred embodiment of the present invention.

A kind of pick-proof door bolt structure, comprise be located at door-plate 1 back side and relatively door-plate 1 horizontal slippage main fasten 2 with a bolt or latch, as complete latch locking structure, certainly necessarily also be provided with the drives structure that drives 2 slippage of main door bolt at the door-plate back side, this drives structure generally comprises the door bolt plate 9 that is connected main door bolt 2 rear portion, and by the shift fork 11 of lockset 10 or handle drives, this shift fork 11 is connected with the bar shape trench hole or the breach 91 of door bolt on the plate 9, being that the deflection of shift fork 11 can drive and fastens plate 9 with a bolt or latch and lead and fasten 2 relative door-plate 1 a horizontal slippage with a bolt or latch.

This bolt structure also comprises time door bolt 3 and connecting rod 4, the transverse holes 22 of main door bolt 1 rear end face is run through in the vertical hole 21 and that has the main door bolt of vertical perforation 2 in the main door bolt 2, the front end of this transverse holes 22 communicates with vertical hole 21, inferior door bolt 3 is positioned at vertical hole 21 and relatively vertically hole slippage and stretching out or the main door bolt of indentation 2 21 about, and the front end of connecting rod 4 passes and is plugged in after the transverse holes 22 in the jack of time fastening with a bolt or latch on 3 rear end face.The middle part of connecting rod 4 be rotatably connected in the transverse holes 22 by bearing pin 5 so that connecting rod 4 around the swing of bearing pin 5 can drive that time door bolt 3 stretches out or the main door bolt of indentation 2 in, main door bolt 2 outside are provided with the drives structure that driving connecting rod 4 is swung.

The drives structure that drives connecting rod 4 swings comprises the guide strip 6 that is fixed on door-plate 1 back side, have guiding slotted eye 7 on this guide strip 6, this guiding slotted eye 7 comprises back laterally straight trough hole portion 71 and tilted slotted hole portion 72 and preceding horizontal straight trough hole portion 73 3 parts, and tilted slotted hole portion 72 two ends are communicated with horizontal straight trough hole portion 71 in back and preceding horizontal straight trough hole portion 73 respectively; The rear end of connecting rod 4 is connected with the protruding lead of side 8, and this lead 8 stretches in the described guiding slotted eye 7 and can slippage in this leads slotted eye 7; Be positioned at the back laterally under straight trough hole portion 71 internal states at lead 8, an inferior door bolt main door bolt of 3 indentations 2, lead 8 is positioned at before laterally under straight trough hole portion 73 internal states, inferior door bolt 3 stretches out mainly fastens 2 with a bolt or latch.

A time door bolt that present embodiment adopts 3 has two, and one of them time door bolt 3 protrudes upward or the main door bolt of indentation 2, and another time door bolt 3 stretches out downwards or the main door bolt of indentation 2; With stretch out downwards or time door bolt 3 corresponding guide strip of the main door bolt head of indentation on back horizontal straight trough hole portion 71 front ends be communicated with tilted slotted hole portion 72 lower ends, the rear end of preceding horizontal straight trough hole portion 73 is communicated with tilted slotted hole portion 72 upper ends, as shown in Figure 9; With protrude upward or time door bolt 3 corresponding guide strip of the main door bolt head of indentation on back horizontal straight trough hole portion 71 front ends be communicated with tilted slotted hole portion 72 upper ends, the rear end of preceding horizontal straight trough hole portion 73 is communicated with tilted slotted hole portion 72 lower ends, as shown in figure 10.

Operating principle of the present invention and process are as follows:

Locking process: insert key turns lockset 10, driving shift fork 11 rotates, drive the 2 laterally reach of door bolt plate 9 and main door bolt, simultaneously time door bolt 3 and connecting rod 4 are also with 2 reach of main door bolt, in the early stage of moving process, lead 8 slippage in the horizontal straight trough hole portion 71 in back, this process time door bolt main door bolt of 3 indentations 2, enter in tilted slotted hole portion 72 internal procedures at lead 8, lead 8 just has a process that rises or descend gradually, in this process, drive the displacement up or down of the relative bearing pin 5 in connecting rod 4 outer ends, connecting rod 4 gets up around bearing pin 5 swings, utilize lever principle, slide onto tilted slotted hole portion 72 front ends time door bolt 3 at lead 8 and stretch out main door bolt 2 up or down, and lead 8 time door bolt 3 in preceding horizontal straight trough hole portion 73 slippings remains and stretches out main door bolt 2 trend up or down.

Releasing process is just opposite with locking process.

Claims

1. pick-proof door bolt structure, comprise the main door bolt (2) of being located at door-plate (1) back side and the horizontal slippage of the relative door-plate (1) of energy, it is characterized in that: this bolt structure also comprises time door bolt head (3) and connecting rod (4), has the transverse holes (22) that main door bolt head (1) rear end face is run through in the vertical hole (21) and of running through setting in the described main door bolt head (2), the front end of this transverse holes (22) communicates with vertical hole (21), described time door bolt head (3) is positioned at vertical hole (21) and relatively vertically hole (21) slippage and stretching out or the main door bolt of indentation (2) up and down, the front end of described connecting rod (4) passes transverse holes (22) back and is connected with described door bolt head (3), the middle part of connecting rod (4) be rotatably connected in the transverse holes (22) by bearing pin (5) so that connecting rod (4) around the swing of bearing pin (5) can drive that time door bolt head (3) stretches out or the main door bolt head of indentation (2) in, main door bolt (2) outside is provided with the drives structure that driving connecting rod (4) is swung.

2. pick-proof door bolt structure according to claim 1, it is characterized in that: described drives structure comprises the guide strip (6) that is fixed on door-plate (1) back side, have guiding slotted eye (7) on this guide strip (6), this guiding slotted eye (7) comprises back laterally straight trough hole portion (71) and tilted slotted hole portion (72) at least, and described tilted slotted hole portion (72) one ends are communicated with afterwards horizontal straight trough hole portion (71); The rear end of described connecting rod (4) is connected with the protruding lead of side (8), and this lead (8) stretches in the described guiding slotted eye (7) and can slippage in this slotted eye that leads (7); Be positioned under the horizontal straight trough hole portion (71) in the back internal state at lead (8), the inferior door bolt head main door bolt head of (3) indentation (2) is positioned under the anterior state of tilted slotted hole portion (72) at lead (8), and inferior door bolt head (3) stretches out the main head (2) of fastening with a bolt or latch.

3. pick-proof door bolt structure according to claim 2, it is characterized in that: horizontal straight trough hole portion (73) before described guiding slotted eye (7) also comprises, described tilted slotted hole portion (72) two ends are communicated with horizontal straight trough hole portion (71) in back and preceding horizontal straight trough hole portion (73) respectively; Be positioned under the horizontal straight trough hole portion (71) in the back internal state at lead (8), the inferior door bolt head main door bolt head of (3) indentation (2), under horizontal straight trough hole portion (73) internal state, inferior door bolt head (3) stretches out master's door bolt head (2) before lead (8) is positioned at.

4. pick-proof door bolt structure according to claim 1 is characterized in that: described connecting rod (4) front end is plugged in the jack of fastening with a bolt or latch for described time on head (3) rear end face after passing transverse holes (22).

5. pick-proof door bolt structure according to claim 1 is characterized in that: described door bolt head (3) has two, and one of them time door bolt head (3) protrudes upward or the main door bolt head of indentation (2), and another time door bolt head (3) stretches out downwards or the main door bolt head of indentation (2).

6. pick-proof door bolt structure according to claim 2 is characterized in that: described door bolt head (3) has two, and one of them time door bolt head (3) protrudes upward or the main door bolt head of indentation (2), and another time door bolt head (3) stretches out downwards or the main door bolt head of indentation (2); With protrude upward or corresponding guide strip (6) of time door bolt head (3) of the main door bolt head of indentation (2) on back horizontal straight trough hole portion (71) front end and tilted slotted hole portion (72) on be communicated with; With stretch out downwards or corresponding guide strip (6) of time door bolt head (3) of the main door bolt head of indentation (2) on back horizontal straight trough hole portion (72) front end be communicated with tilted slotted hole portion (71) lower end.

7. pick-proof door bolt structure according to claim 3 is characterized in that: described door bolt head (3) has two, and one of them time door bolt head (3) protrudes upward or the main door bolt head of indentation (1), and another time door bolt head (3) stretches out downwards or the main door bolt head of indentation (1); With protrude upward or corresponding guide strip of time door bolt head (3) of the main door bolt head of indentation on back horizontal straight trough hole portion (71) front end and tilted slotted hole portion (72) on be communicated with, the rear end of preceding horizontal straight trough hole portion (73) is communicated with tilted slotted hole portion (72) lower end; With stretch out downwards or corresponding guide strip of time door bolt head (3) of the main door bolt head of indentation on back horizontal straight trough hole portion (71) front end be communicated with tilted slotted hole portion (72) lower end, be communicated with on the rear end of preceding horizontal straight trough hole portion (73) and the tilted slotted hole portion (72).