Door fence lock

Abstract

The utility model discloses a door fence lock which comprises a first lock body, a second lock body and a linkage assembly connected with the first lock body and the second lock body, the linkage assembly comprises a third shell installed in the first lock body, a sliding block running in the third shell in a sliding mode and a steel wire, and one end of the steel wire is fixedly connected with the sliding block. The other end of the steel wire is in linkage with the second lock body, and the sliding block is in linkage with the first lock body. The upper lock body and the lower lock body can be opened at the same time through pressing, the locking stability of the door fence is improved, the lower portion of the door fence is prevented from shaking, and the use safety of the door fence is improved.

Description

Technical Field

[0001] The utility model relates to a lock, in particular to a door bar lock. Background Art

[0002] A door bar is a device for preventing infants and young children, as well as pets, from leaving a specific safe activity area casually, and is usually installed at the door of a room, in a corridor, or at the staircase entrance. The current door bar includes a door frame and a door bar body. The door bar body is connected to the door frame through a door hinge and can rotate around the door hinge. A door bar lock is provided between the door bar body and the door frame to achieve the functions of opening and closing the door. In order to facilitate unlocking, the existing door bar locks are generally installed at the upper end or the middle position of the door bar, which makes the door bar prone to shaking when locked. Therefore, in order to avoid the disadvantages existing in the prior art, it is necessary to make improvements to the prior art. Summary of the Utility Model

[0003] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a door bar lock with a simple structure and stable locking.

[0004] The utility model is realized through the following technical solutions:

[0005] A door bar lock includes a first lock body, a second lock body, and a linkage assembly connecting the first lock body and the second lock body. The linkage assembly includes a third housing installed in the first lock body, a slider sliding in the third housing, and a steel wire with one end fixedly connected to the slider. The other end of the steel wire is linked with the second lock body, and the slider is linked with the first lock body.

[0006] Further, the first lock body includes a first housing, a baffle installed in the first housing, and a lock assembly provided at the front end of the baffle. The linkage assembly is installed at the rear end of the baffle. An installation groove is opened at the rear end of the first lock body. The lock assembly includes a pressing block and a hollow tube body provided at the upper end of the pressing block. Slots and holes adapted to the pressing block and the hollow tube body are respectively opened at the front end of the first lock body. A first lock tongue is sleeved in the hollow tube body, and a first return spring is sleeved outside the first lock tongue. The second lock body includes a second housing and a second lock tongue installed in the second housing. The upper end of the second lock tongue is connected to the other end of the steel wire. An inclined plane is provided at the lower end of the slider, and a push rod is provided at the rear end of the pressing block. The push rod passes through the baffle and contacts the inclined plane.

[0007] Further, a second return spring is pressed on the upper end of the second lock tongue.

[0008] Further, a third return spring is pressed on the upper end of the slider.

[0009] Further, a contact surface adapted to the bevel surface is provided at the pushing end of the push rod.

[0010] Further, a fourth return spring is sleeved outside the push rod.

[0011] Further, a mounting plate is provided at the upper end of the first housing, and a mounting hook is provided at the lower end of the first housing.

[0012] Further, a first boss is provided on the inner side wall of the front end of the hollow tube body, a second boss is provided on the outer side wall of the middle part of the first locking tongue, and the second boss is clamped on the first boss.

[0013] Further, a clamping block is provided at the lower end of the baffle, and a clamping groove adapted to the clamping block is opened at the lower end of the first housing.

[0014] Further, the gate lock further includes a first lock groove adapted to the first lock body and a second lock groove adapted to the second lock body.

[0015] Compared with the prior art, the utility model realizes the interlocking switch of the first lock body and the second lock body through the linkage assembly. Only by operating the first lock body installed on the upper part of the gate can the interlocking with the second lock body installed on the bottom of the gate be realized. The operation is convenient, and the upper and lower locking makes the locking more stable, preventing the gate from shaking when locked, and the locked gate is more stable and safe. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 is a schematic structural diagram of the gate lock of the present invention;

[0018] Figure 2 is a schematic cross-sectional view of the gate lock of the present invention;

[0019] Figure 3 is a schematic structural diagram of the first lock body of the gate lock of the present invention;

[0020] Figure 4 is a schematic structural diagram of the use state of the gate lock of the present invention.

[0021] In the figure: 1 - First lock body; 2 - Second lock body; 3 - Linkage component; 4 - First housing; 5 - Baffle; 6 - Third housing; 7 - Slide block; 8 - Steel wire; 9 - Door bar; 10 - Installation groove; 11 - Pressing block; 12 - Hollow tube body; 13 - First locking tongue; 14 - First return spring; 15 - Second housing; 16 - Second locking tongue; 17 - Push rod; 18 - Second return spring; 19 - Third return spring; 20 - Fourth return spring; 21 - Mounting plate; 22 - Hook; 23 - Block; 24 - First locking groove; 25 - Second locking groove. Detailed implementation manners

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] As Figures 1 to 4 shown, a door bar lock of the present invention includes a first lock body 1, a second lock body 2, and a linkage component 3 connecting the first lock body 1 and the second lock body 2. The linkage component 3 includes a third housing 6 installed in the first lock body 1, a slide block 7 slidingly running in the third housing 6, and a steel wire 8 with one end fixedly connected to the slide block 7. The other end of the steel wire 8 is linked with the second lock body 2, and the slide block 7 is linked with the first lock body 1. The first lock body 1 is installed at the upper or middle part of the door bar 9, the second lock body 2 is installed at the bottom of the door bar 9, and the steel wire 8 can be sleeved inside or outside the frame of the door bar 9. When the first lock body 1 is opened, the second lock body 2 is linked to be opened through the linkage component 3, so as to realize the simultaneous opening or closing of the upper and lower parts of the door bar lock.

[0024] The first lock body 1 includes a first housing 4, a baffle 5 installed in the first housing 4, and a lock assembly arranged at the front end of the baffle 5. The linkage component 3 is installed at the rear end of the baffle 5. An installation groove 10 is opened at the rear end of the first lock body 1. The lock assembly includes a pressing block 11 and a hollow tube body 12 arranged at the upper end of the pressing block 11. Slots and openings adapted to the pressing block 11 and the hollow tube body 12 are respectively opened at the front end of the first lock body 1. A first locking tongue 13 is sleeved inside the hollow tube body 12, and a first return spring 14 is sleeved outside the first locking tongue 13. The second lock body 2 includes a second housing 15 and a second locking tongue 16 installed in the second housing 2. The upper end of the second locking tongue 16 is connected to the other end of the steel wire 8. An inclined surface is provided at the lower end of the slide block 7, and a push rod 17 is provided at the rear end of the pressing block 11. The push rod 17 passes through the baffle 5 and contacts the inclined surface.

[0025] A second return spring 18 is pressed on the upper end of the second locking tongue 16 to facilitate the downward locking of the second locking tongue 16.

[0026] A third return spring 19 is pressed on the upper end of the slider 7 to increase the buffering force when the slider 7 moves upward.

[0027] The pushing end of the push rod 17 is provided with a contact surface adapted to the inclined cut surface to reduce the pressing resistance.

[0028] A fourth return spring 20 is sleeved outside the push rod 17 to improve the pressing effect and the reset efficiency.

[0029] An installation plate 21 is provided at the upper end of the first housing 4, and an installation hook 22 is provided at the lower end of the first housing 4. The hook 22 helps to position the installation of the door rail lock, and the installation plate 21 facilitates the fixing of the door rail lock to the door rail 9 with screws.

[0030] A first boss is provided on the inner side wall of the front end of the hollow tube body 12, and a second boss is provided on the outer side wall of the middle part of the first locking tongue 13. The second boss is snap-fitted on the first boss to facilitate limiting the running distance of the first locking tongue 13 and prevent the first locking tongue 13 from disengaging.

[0031] A clamping block 23 is provided at the lower end of the baffle 5, and a clamping groove adapted to the clamping block 23 is opened at the lower end of the first housing 4 to facilitate the installation of the baffle 5.

[0032] The door rail lock further includes a first lock groove 24 adapted to the first lock body 1 and a second lock groove 25 adapted to the second lock body 2.

[0033] Working principle: When the pressing block 11 is pressed, the pressing block 11 is linked with the hollow tube body 12, so that the first locking tongue 13 in the hollow tube body 13 withdraws from the first lock groove 24. At the same time, the push rod 17 linked with the pressing block 11 is pushed backward, pressing the slider 7 to slide upward. When the slider 7 slides upward, it drives the steel wire 8 to be pulled upward, so that the second locking tongue 16 is pulled upward to withdraw from the second lock groove 25, realizing unlocking.

[0034] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A threshold lock, characterized in that: It includes a first lock body, a second lock body, and a linkage assembly connecting the first lock body and the second lock body. The linkage assembly includes a third housing installed in the first lock body, a slider slidingly running in the third housing, and a steel wire with one end fixedly connected to the slider. The other end of the steel wire is linked with the second lock body, and the slider is linked with the first lock body.

2. The threshold lock according to claim 1, characterized in that: The first lock body includes a first housing, a baffle installed in the first housing, and a lock assembly provided at the front end of the baffle. The linkage assembly is installed at the rear end of the baffle. An installation groove is provided at the rear end of the first lock body. The lock assembly includes a pressing block and a hollow tube body provided at the upper end of the pressing block. A slot and an opening adapted to the pressing block and the hollow tube body are respectively provided at the front end of the first lock body. A first lock tongue is sleeved in the hollow tube body, and a first return spring is sleeved outside the first lock tongue. The second lock body includes a second housing and a second lock tongue installed in the second housing. The upper end of the second lock tongue is connected to the other end of the steel wire. An inclined plane is provided at the lower end of the slider, and a push rod is provided at the rear end of the pressing block. The push rod passes through the baffle and contacts the inclined plane.

3. The threshold lock according to claim 2, wherein: A second return spring is pressed on the upper end of the second lock tongue.

4. The threshold lock according to claim 1, wherein: A third return spring is pressed on the upper end of the slider.

5. The threshold lock according to claim 2, characterized in that: A contact surface adapted to the inclined plane is provided at the pushing end of the push rod.

6. The threshold lock according to claim 2, characterized in that: A fourth return spring is sleeved outside the push rod.

7. The threshold lock according to claim 2, wherein: An installation plate is provided at the upper end of the first housing, and an installation hook is provided at the lower end of the first housing.

8. The threshold lock according to claim 2, characterized in that: A first boss is provided on the inner side wall of the front end of the hollow tube body, and a second boss is provided on the outer side wall of the middle part of the first lock tongue. The second boss is clamped on the first boss.

9. The threshold lock according to claim 2, characterized in that: A block is provided at the lower end of the baffle, and a card slot adapted to the block is provided at the lower end of the first housing.

10. The threshold lock according to claim 1, characterized in that: The door threshold lock further includes a first lock slot adapted to the first lock body and a second lock slot adapted to the second lock body.

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