CN205743375U - The world latch of a set of biparting class antitheft door - Google Patents

Abstract

The utility model discloses a set of heaven and earth bolts for double-leaf door anti-theft doors. The upper pin includes the deadbolt seat, the deadbolt group, the deadbolt connecting plate, the handle switch and the deadbolt group spring, the deadbolt group is fixed above the deadbolt connecting plate, and the bolt group is installed The bolt group spring is used for reset, and the bolt group protrudes from the upper side of the auxiliary door leaf, and the handle switch is fixedly installed under the bolt connecting plate to expose outside the auxiliary door leaf; the lower pin includes a latch seat, a lower bolt, and a bolt Connecting rod, latch fixing seat, fixing seat connecting rod, latch and latch spring, the outer end of the lower deadbolt is exposed outside the side of the auxiliary door leaf and the inner end of the lower deadbolt is connected with one end of the deadbolt connecting rod, and the lock The other end of the tongue connecting rod is connected with an end of the fixed seat connecting rod, and the other end of the fixed seat connecting rod is pivotally connected above the latch fixed seat, and the latch is installed below the latch fixed seat, and the latch spring for resetting is installed on the latch. The utility model makes the use of double-leaf anti-theft doors more convenient and safe.

Description

A set of heaven and earth latches for double-leaf security doors

technical field

The utility model relates to a set of heaven and earth bolts for double-leaf anti-theft doors.

Background technique

Existing double-leaf anti-theft door, that is, an anti-theft door with a main door leaf and an auxiliary door leaf, the auxiliary door is fixed on the door frame with a world bolt. Make the latch retract two states. When the auxiliary door is closed, the bolt is opened to limit the rotation of the auxiliary door, so that the auxiliary door leaf is in a closed and locked state; when the latch is closed, the auxiliary door can be freely rotated to make it in an open state. However, it is possible that when the auxiliary door leaf is open, the latch is also in the open and extended state. At this time, if the door leaf is closed by a large external force, the exposed latch will collide with the door frame, not only the door cannot be closed normally, but also It may cause damage to the latch on the door leaf, the large lock, the door leaf itself, etc.; in addition, it may also happen that the latch of the auxiliary door is closed and retracted. At this time, if the latch is not opened, only the main door leaf is closed. The anti-theft performance of the door may go wrong. In addition, the pin bodies of this type are all single-rod structures at present, and it is difficult for anti-theft door manufacturers to control the error of the latch opening of the auxiliary door, which may cause the auxiliary door to not be fixed firmly, which will affect the usability and sealing of the anti-theft door.

In short, the heaven and earth latches of traditional double-leaf anti-theft doors may be damaged due to human factors when opening and closing the door, which may also cause safety problems for anti-theft doors; It will affect the usability and sealing of the anti-theft door.

Utility model content

In view of the above defects of the traditional double-leaf anti-theft door, the purpose of this utility model is to provide a set of heaven-earth latch for double-leaf anti-theft doors, so that the use of double-leaf anti-theft doors is more convenient and safe.

In order to achieve the above object, the solution of the present utility model is:

A complete set of heaven and earth pins for double-leaf anti-theft doors, including upper pins and lower pins;

The upper pin is fixed on the upper side of the secondary door leaf of the anti-theft door of the double-leaf category. The upper pin includes the deadbolt seat and the deadbolt group installed in the deadbolt seat, the deadbolt connecting plate, the handle switch and the spring of the deadbolt group, and the deadbolt group It is fixed on the top of the bolt connecting plate, and the bolt group spring for reset is installed between the bolt group and the spring fixing plate of the bolt seat. The handle switch is fixedly installed under the tongue connecting plate, and the handle switch is exposed outside the auxiliary door leaf;

The lower pin is fixed on the lower side of the auxiliary door leaf of the double-leaf anti-theft door, and the lower pin includes a latch seat and a lower deadbolt installed in the latch seat, a deadbolt connecting rod, a bolt fixing seat, a fixing seat connecting rod, a latch and a latch spring , the outer end of the lower bolt is exposed outside the side of the auxiliary door leaf and the inner end of the lower bolt is connected to one end of the deadbolt connecting rod, and the other end of the deadbolt connecting rod is connected to one end of the fixing seat connecting rod. The other end of the seat connecting rod is pivotally connected above the latch holder, and the latch is installed below the latch holder, and the bolt spring for resetting is installed on the latch, and the latch is driven by the latch holder to stretch out from the side below of the secondary door leaf.

The dead bolt group is composed of a small dead bolt and a large dead bolt. The large dead bolt is fixed on the top of the dead bolt connecting plate. The tongue is inserted in the big dead bolt, and the small dead bolt spring for resetting is installed between the small dead bolt and the top of the dead bolt connecting plate, and a dead bolt sheet is pivotally arranged on the big dead bolt.

A guide pin is also installed under the deadbolt connecting plate through the guide pin connecting plate, and the guide pin is inserted in the guide hole of the auxiliary door leaf.

The deadbolt seat is formed by buckling the upper seat and the lower seat, and an upper pin outer frame and an upper pin outer frame cover are installed on the deadbolt seat, and the top of the upper pin outer frame is provided with a top opening for the dead bolt group to protrude from. The upper pin outer frame and the upper pin outer frame cover offer a side opening for the handle switch to expose on the side.

The lower bolt is inserted into a fixedly arranged bolt guide seat.

The middle of the deadbolt link is pivotally arranged on the deadbolt guide seat.

A shaft sleeve and a screw are installed on the bottom of the bolt fixing seat, and the shaft sleeve is interspersed in a fixedly arranged bolt guide seat, and a bolt spring is installed between the shaft sleeve and the bolt guide seat, and the bolt is inserted in the shaft sleeve, and the bolt and the screw are below To connect, a small spring is arranged between the top of the bolt and the bolt holder.

The latch seat is formed by buckling the back cover and the front cover, and the front cover is also equipped with an outer cover.

A rolling bearing that is rollingly matched with the front cover is also installed on the bolt holder.

A buffer plate is installed on the main door leaf at a position corresponding to the lower bolt.

After adopting the above scheme, in the actual application of the utility model, when the auxiliary door is closed by force, the upper pin bolt group contacts the door frame, resets after shrinking, and is fixed in the corresponding deadbolt hole of the door frame, so that the auxiliary door is closed and locked. state; pull the handle switch and push the door leaf of the auxiliary door, the bolt group of the upper pin leaves the bolt hole, so that the auxiliary door is in the open state; due to the internal mechanism of the upper pin, the gap between the doors can be well adjusted; the auxiliary door is in the closed lock state. When in the solid state, the main door leaf is closed by force and contacts with the lower bolt of the lower pin, and the mechanism in the lower pin makes the latch protrude, and the corresponding latch hole of the fixed door frame is further strengthened by the auxiliary door. The utility model makes double-leaf anti-theft doors safer and more convenient to switch and lock.

Description of drawings

Fig. 1 is the installation sketch map of the present utility model (outside opening door);

Figure 1A is a simplified top view of Figure 1;

Figure 2 is an exploded schematic view of the upper pin;

Fig. 3 is the combination schematic diagram of upper pin;

Fig. 4 is the sectional view of upper pin;

Figure 5 is an exploded schematic view of the lower pin;

Fig. 6 is the combination schematic diagram of lower pin;

Figure 7 is a sectional view of the lower pin;

Fig. 8 is a schematic diagram of the utility model;

Figure 9 is an enlarged view of Figure 8;

Fig. 10 is a schematic diagram of the second use of the utility model;

Figure 11 is an enlarged view of Figure 10;

Fig. 12 is a schematic diagram three of the utility model;

Figure 13 is an enlarged view of Figure 12;

Figure 14 is another installation schematic diagram of the utility model (inward opening door);

Fig. 14A is a simplified top view of Fig. 14;

Fig. 15 is another combination schematic diagram of the lower pin;

Figure 16 is an enlarged view of Figure 15;

Figure 17 is a schematic diagram of the installation of the lower pin shown in Figure 15 (opening the door);

Fig. 17A is a simplified top view of Fig. 17;

Figure 18 is a schematic diagram of the installation of the lower pin shown in Figure 15 (inward opening door);

FIG. 18A is a simplified top view of FIG. 18 .

Label description

Upper pin 10, deadbolt seat 11, spring fixing plate 111, upper seat 112, lower seat 113, upper pin outer frame 114, upper pin outer frame cover 115, dead bolt group 12, small dead bolt 121, big dead bolt 122, small Deadbolt spring 123, deadbolt sheet 124, deadbolt connecting plate 13, handle switch 14, deadbolt group spring 15, guide pin 16, guide pin connecting plate 161;

Lower pin 20, bolt seat 21, rear cover 211, front cover 212, outer cover 213, lower bolt 22, bolt guide seat 221, bolt connecting rod 23, bolt fixing seat 24, bushing 241, screw 242, bolt Guide seat 243, small spring 244, fixed seat connecting rod 25, latch 26, latch spring 27, bearing 28, bearing dead bolt group 29, dead bolt 291, bearing 292;

buffer plate 30.

detailed description

As shown in Fig. 1 to Fig. 18A, a complete set of heaven and earth bolts for double-leaf anti-theft doors disclosed by the utility model includes two parts, an upper pin 10 and a lower pin 20 .

Going up pin 10 is fixed on the side top of double-leaf door class anti-theft door secondary door leaf. The upper pin 10 includes a dead bolt seat 11 and a dead bolt group 12 installed in the dead bolt seat 11 , a dead bolt connecting plate 13 , a handle switch 14 and a dead bolt group spring 15 . The dead bolt group 12 is fixed on the top of the dead bolt connecting plate 13, and the dead bolt group spring 15 for resetting is installed between the dead bolt group 12 and the spring fixing plate 111 of the dead bolt seat 11, and the dead bolt group 12 is affected by the dead bolt group spring 15. Stretch out from the side top of the auxiliary door leaf, the handle switch 14 is fixedly installed below the deadbolt connecting plate 13, and the handle switch 14 is exposed outside the auxiliary door leaf.

Wherein, the dead bolt group 12 can specifically be made up of the small dead bolt 121 and the big dead bolt 122, and the big dead bolt 122 is fixed on the top of the dead bolt connecting plate 13, between the big dead bolt 122 and the spring fixing plate 111 of the dead bolt seat 11. Install reset with dead bolt group spring 15, small dead bolt 121 is inserted in big dead bolt 122, install reset with small dead bolt spring 123 between small dead bolt 121 and the top of dead bolt connecting plate 13, on big dead bolt 122 A locking tongue piece 124 is also pivotally arranged.

In order to realize the locking action more accurately, a guide pin 16 is also installed under the deadbolt connecting plate 13 through the guide pin connecting plate 161, and the guide pin 16 is inserted in the guide hole of the auxiliary door leaf.

In order to facilitate assembly and make the appearance neat and beautiful, the deadbolt seat 11 is formed by buckling the upper seat 112 and the lower seat 113. The upper pin outer frame 114 and the upper pin outer frame cover 115 are also installed on the dead bolt seat 11, and the upper pin The top of the outer frame 114 offers a top opening for the bolt group 12 to stretch out, and the upper pin outer frame 114 and the upper pin outer frame cover 115 offer side openings for the handle switch 14 to expose on the side.

Lower pin 20 is fixed on the side below of the secondary door leaf of double-leaf door class anti-theft door. The lower pin 20 includes a bolt seat 21 and a lower bolt 22 installed in the bolt seat 21 , a deadbolt connecting rod 23 , a bolt fixing seat 24 , a fixing seat connecting rod 25 , a latch 26 and a bolt spring 27 . The outer end of the lower dead bolt 22 is exposed outside the side of the auxiliary door leaf, and the inner end of the lower dead bolt 22 is connected with one end of the dead bolt connecting rod 23, and the other end of the dead bolt connecting rod 23 is connected with the fixing seat connecting rod 25. The other end of the fixed seat connecting rod 25 is pivotally connected to the top of the bolt fixed seat 24, the latch 26 is installed below the latch fixed seat 24, and the latch spring 27 for resetting is installed on the latch 26, and the latch 26 is driven by the latch fixed seat 24 from The side bottom of the auxiliary door leaf protrudes.

Wherein, in order to make the locking action more accurate, the lower deadbolt 22 is inserted in a fixedly arranged deadbolt guide seat 221 . The middle of the deadbolt link 23 is pivotally arranged on the deadbolt guide seat 221 . Moreover, the bottom of the bolt holder 24 is equipped with a shaft sleeve 241 and a screw 242 for adjustment, the shaft sleeve 241 is inserted in a fixedly arranged bolt guide seat 243, and a latch spring 27 is installed between the shaft sleeve 241 and the latch guide seat 243, The bolt 26 is inserted in the shaft sleeve 241 , the bolt 26 is connected with the bottom of the screw 242 , and a small spring 244 is arranged between the top of the bolt 26 and the bolt fixing seat 24 .

In order to facilitate assembly and make the appearance neat and beautiful, the latch seat 21 is formed by fastening a rear cover 211 and a front cover 212 , and an outer cover 213 is also installed on the front cover 212 . Bearing 28 is also installed on the bolt holder 24, and bearing 28 is a rolling bearing, and in the axial movement of bolt 26 and its accessory components, it is subjected to radial force to produce contact with front cover 212, and this rolling fit can be frictional.

In addition, a buffer plate 30 is installed on the main door leaf at a position corresponding to the lower lock tongue 22 to reduce wear when the main door leaf is closed and to adjust the gap between the doors.

In the actual application of the utility model, when the auxiliary door is closed by force, as shown in Figure 8 and Figure 9, the deadbolt group 12 of the upper pin 10 contacts the door frame, resets after shrinking, and is fixed in the corresponding dead bolt hole of the door frame, Make the auxiliary door in the closed and locked state, as shown in Figure 10 and Figure 11; pull the handle switch 14 and push the auxiliary door leaf, the upper pin 10 bolt group 12 leaves the deadbolt hole, and the auxiliary door is in the open state; because the upper pin 10 The relationship between the internal mechanism can better adjust the gap between the doors. When the auxiliary door is in the closed and locked state, the main door leaf is closed by force, and the main door leaf itself or the buffer plate 30 (if the main door leaf is installed) contacts the lower bolt 22 of the lower pin 20, and the mechanism in the lower pin 20 makes the latch 26 stretches out, and the bolt hole corresponding to the fixed door frame further strengthens the auxiliary door, as shown in Figure 12 and Figure 13.

Fig. 8, Fig. 10, Fig. 12 are outward opening type double-leaf door class anti-theft doors, if the utility model is applied on the inner-opening type double-leaf door class anti-theft doors, then the dead bolt group 12 and the bolt group 12 of the upper pin 10 need to be changed during assembly. The direction of the lower bolt 22 of the lower pin 20 is as shown in Figure 14 and Figure 14A.

In addition, the lower bolt 22 in the lower pin 20 can also be replaced by a bearing bolt group 29, as shown in Figures 15 and 16, the bearing bolt group 29 is composed of a bolt 291 and a bearing 292 fixed by pins, and the working principle is the same as The lower dead bolt 22 is consistent, and the bearing can reduce the stress on the dead bolt, so that the main door is closed more smoothly. Bearing deadbolt group 29 is installed in the anti-theft door of double-leaf door class with lower pin 20, as shown in Figure 17, Figure 18, is applicable to inwardly opening door and externally opening door equally.

Claims (10)

1. A set of heaven and earth bolts for double-leaf anti-theft doors, characterized in that it includes two parts: an upper pin and a lower pin; The upper pin is fixed on the upper side of the secondary door leaf of the anti-theft door of the double-leaf category. The upper pin includes the deadbolt seat and the deadbolt group installed in the deadbolt seat, the deadbolt connecting plate, the handle switch and the spring of the deadbolt group, and the deadbolt group It is fixed on the top of the bolt connecting plate, and the bolt group spring for reset is installed between the bolt group and the spring fixing plate of the bolt seat. The handle switch is fixedly installed under the tongue connecting plate, and the handle switch is exposed outside the auxiliary door leaf; The lower pin is fixed on the lower side of the auxiliary door leaf of the double-leaf anti-theft door, and the lower pin includes a latch seat and a lower deadbolt installed in the latch seat, a deadbolt connecting rod, a bolt fixing seat, a fixing seat connecting rod, a latch and a latch spring , the outer end of the lower bolt is exposed outside the side of the auxiliary door leaf and the inner end of the lower bolt is connected to one end of the deadbolt connecting rod, and the other end of the deadbolt connecting rod is connected to one end of the fixing seat connecting rod. The other end of the seat connecting rod is pivotally connected above the latch holder, and the latch is installed below the latch holder, and the bolt spring for resetting is installed on the latch, and the latch is driven by the latch holder to stretch out from the side below of the secondary door leaf. 2. A set of heaven and earth bolts for double-leaf anti-theft doors as claimed in claim 1, characterized in that: the bolt group is composed of a small bolt and a big bolt, and the big bolt is fixed above the bolt connecting plate , between the large deadbolt and the spring fixing plate of the deadbolt seat, the spring for reset bolt is installed, the small deadbolt is inserted in the big deadbolt, and the small deadbolt for reset is installed between the small deadbolt and the top of the deadbolt connecting plate Tongue spring, also pivotally set a deadbolt sheet on the big deadbolt. 3. A set of heaven and earth bolts for double-leaf anti-theft doors as claimed in claim 1, characterized in that: a guide pin is installed below the deadbolt connecting plate through the guide pin connecting plate, and the guide pin is inserted in the auxiliary door In the guide hole of the door leaf. 4. A set of heaven and earth bolts for double-leaf anti-theft doors as claimed in claim 1, characterized in that: the deadbolt seat is formed by fastening an upper seat and a lower seat, and an outer frame of the upper pin is also installed on the deadbolt seat And upper pin outer frame cover, the top of upper pin outer frame offers the top opening that dead bolt group stretches out, upper pin outer frame and upper pin outer frame cover offer the side opening that handle switch exposes on the side. 5. A set of heaven and earth bolts for double-leaf anti-theft doors according to claim 1, wherein the lower bolt is inserted into a fixed bolt guide seat. 6. A set of heaven and earth bolts for double-leaf anti-theft doors according to claim 5, characterized in that: the middle of the deadbolt link is pivotally arranged on the deadbolt guide seat. 7. A set of heaven and earth bolts for double-leaf anti-theft doors as claimed in claim 1, characterized in that: the bottom of the bolt fixing seat is equipped with a bushing and a screw, and the bushing is inserted into a fixedly arranged bolt guide seat, A bolt spring is installed between the axle sleeve and the bolt guide seat, the bolt is inserted in the axle sleeve, the bolt is connected with the bottom of the screw, and a small spring is arranged between the top of the bolt and the bolt holder. 8. A set of heaven and earth bolts for double-leaf anti-theft doors according to claim 1, characterized in that: the bolt seat is formed by fastening a rear cover and a front cover, and an outer cover is also installed on the front cover. 9. A set of heaven and earth bolts for double-leaf anti-theft doors according to claim 8, characterized in that: a rolling bearing that is rollingly fitted with the front cover is installed on the bolt fixing seat. 10. A set of heaven and earth bolts for double-leaf anti-theft doors according to claim 1, characterized in that: a buffer plate is installed on the main leaf of the double-leaf door at a position corresponding to the lower bolt.