Adjustable strike escutcheon

Abstract

The present application belongs to the technical field of door lock, and particularly relates to an adjustable lock tongue buckle box, which comprises a shell, a buckle groove is formed in the shell, an inner wall facing the outside of the buckle groove is arranged in the buckle groove, the two sides of the inner wall are bent and extended, and a side wall is formed, an adjustable part which can swing is arranged in the buckle groove, a driving part facing the inner wall is formed on the adjustable part, one side of the driving part is bent and extended, and an adjusting part facing the side wall is formed, a lock groove is defined between the adjusting part and the side wall on one side, a spring abutting between the inner wall and the driving part is further arranged in the buckle groove, the spring makes the driving part have a tendency to move away from the inner wall, and a fastener is connected between the inner wall and the driving part, the buckle box can make adaptive adjustment of the size of the lock groove to the size of the lock tongue through the swing of the adjustable part.

Description

Technical Field

[0001] This invention belongs to the field of door lock technology and relates to an adjustable latch box. Background Technology

[0002] Door locks mainly consist of the lock body on the door panel and the strike box inside the door frame. The strike box is used to accommodate the bolt that pops out of the lock body when the door panel is closed, so as to fix the door panel and lock the door.

[0003] In order to reduce unnecessary collisions and wear during bolt insertion and to ensure the bolt accurately enters the lock groove, the strike box in existing door locks is usually designed with a lock groove that is relatively larger than the bolt. This results in a gap between the bolt and the inner wall of the lock groove in the strike box. This gap makes it easy for someone outside the door to pry open the door without a key by inserting a thin object into the lock groove, posing a security risk to the people inside. However, if the lock groove in the strike box is made to perfectly match the bolt size, the bolt is prone to collisions and wear when entering the lock groove. Furthermore, after long-term use, the bolt in the lock body is prone to displacement. When the bolt eventually fails to enter the lock groove in the strike box smoothly, the door will not be able to close properly. Summary of the Invention

[0004] To address the aforementioned problems, this invention provides an adjustable latch box that can adjust the size of its locking groove relative to the latch as needed.

[0005] The objective of this invention is achieved as follows:

[0006] An adjustable latching box includes a housing with a latching groove formed inside the housing. An inner wall facing outwards is provided within the latching groove. The inner wall bends and extends on both sides to form sidewalls. A swingable adjusting member is provided within the latching groove. A driving portion facing the inner wall is formed on the adjusting member. One side of the driving portion bends and extends to form an adjusting portion facing the sidewall. A locking groove is defined between the adjusting portion and the sidewall. A spring is also provided within the latching groove, abutting against the inner wall and the driving portion. The spring causes the driving portion to tend to move away from the inner wall. A fastener connects the inner wall and the driving portion.

[0007] Furthermore, a support groove is formed on one side wall of the groove, and a bent portion that abuts against the support groove is defined between the driving part and the adjusting part of the adjusting member.

[0008] Furthermore, a notch is formed on one side wall of the groove, and a positioning part that can extend into the notch is formed on the adjusting part of the adjusting member. The supporting groove and the notch are both formed on the same side wall.

[0009] Furthermore, the end face of the support groove that abuts against the bent portion is arc-shaped.

[0010] Furthermore, the bent portion defines a mating groove on the adjusting member, and a clamping block is formed in the clamping groove, extending into the mating groove from both ends. The clamping block abuts against the mating groove, and the end face of the mating groove that abuts against the clamping block is arc-shaped.

[0011] Furthermore, the buckle groove is provided with a magnetic block that abuts against the clamping blocks.

[0012] Furthermore, the magnetic block abuts against the driving part of the adjusting member, and the fastener passes through the magnetic block and the driving part in sequence, and is connected to the inner wall of the buckle groove.

[0013] Furthermore, a support plate inclined relative to the drive unit is formed on one end of the drive unit, and the support plate can abut against the magnetic block as the drive unit swings.

[0014] Furthermore, a connecting post is formed on the inner wall of the groove to abut against the driving part of the adjusting member, and the fastener passes through the driving part and is inserted into the connecting post.

[0015] Furthermore, the spring is frustum-shaped, and the inner diameter of the spring abutting against the drive part is larger than the inner diameter of the spring abutting against the inner wall.

[0016] The outstanding and beneficial technical effects of this invention compared to the prior art are:

[0017] In this lock box, the adjusting component can be made to swing slightly by tightening the fastener in the lock groove. During the swing, the adjusting component changes the distance between the adjusting part and the side wall, thereby changing the size of the lock groove. This allows the lock groove of the lock box to be adaptively adjusted according to the size and position of the bolt. While avoiding unnecessary collision between the bolt and the lock groove when closing the door, it minimizes the gap between the bolt and the lock groove as much as possible, preventing the bolt from being pried in the lock groove and effectively improving the security when the door lock is closed. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a three-dimensional schematic diagram of the present invention.

[0020] Figure 2 Cross-sectional view of the present invention Figure 1 .

[0021] Figure 3 Cross-sectional view of the present invention Figure 2 .

[0022] 1-Housing, 11-Snap groove, 12-Inner wall, 13-Side wall, 14-Locking groove, 15-Support groove, 16-Notch, 17-Clamping block, 18-Connecting column, 2-Adjusting component, 21-Drive unit, 22-Adjusting unit, 23-Bending part, 24-Positioning part, 25-Matching groove, 26-Supporting plate, 3-Spring, 4-Fastener, 5-Magnetic block. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be described in detail below. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0025] like Figure 1-3 As shown, an adjustable latch box includes a housing 1, a latch groove 11 formed inside the housing 1, an inner wall 12 facing outwards inside the latch groove 11, side walls 13 formed on both sides of the inner wall 12, an adjustable member 2 that can swing inside the latch groove 11, a driving part 21 facing the inner wall 12 formed on the adjusting member 2, one side of the driving part 21 bending and extending to form an adjusting part 22 facing the side wall 13, a latch groove 14 defined between the adjusting part 22 and the side wall 13, a spring 3 that abuts against the inner wall 12 and the driving part 21 inside the latch groove 11, the spring 3 causing the driving part 21 to tend to move away from the inner wall 12, and a fastener 4 connecting the inner wall 12 and the driving part 21. Specifically, the latch is installed on the door frame to cooperate with the bolt in the door lock. When the door is closed, the bolt can extend into the latch groove 11, and the lock groove 14 is defined by the side wall 13 and the adjusting part 22 to lock the door. When the bolt is replaced or the bolt position is offset, the tightness of the fastener 4 connected to the inner wall 12 can be adjusted by tightening the fastener 4. This allows the adjusting part 2 to swing, thereby changing the distance between the adjusting part 22 and the side wall 13. That is, the size of the lock groove 14 can be adaptively changed according to the size of the bolt, so that the bolt can accurately enter the lock groove 14. By reducing the distance between the lock groove 14 and the bolt, the bolt is prevented from being pried by foreign objects.

[0026] As an improved embodiment, the fastener 4 can be a screw, bolt, nut, etc., and the adjustment method is to open the door and directly insert a tool such as a screwdriver or wrench into the latch groove 11 of the latch box to tighten the fastener 4. When the fastener 4 is loosened, the spring 3 springs up, pushing the drive part 21 of the adjusting member 2 to swing away from the inner wall 12, so that the adjusting part 22 moves away from one side wall 13, and the size of the locking groove 14 increases at this time; when the fastener 4 is tightened, the drive part 21 of the adjusting member 2 is pressed by the fastener towards the inner wall 12, the spring 3 is compressed, and the adjusting part 22 moves closer to one side wall 13, and the size of the locking groove 14 decreases at this time.

[0027] like Figure 2-3 As shown, a support groove 15 is formed on one side wall 13 of the buckle groove 11, and a bent portion 23 is defined between the driving part 21 and the adjusting part 22 of the adjusting member 2, which abuts against the support groove 15. Specifically, the support groove 15 is the supporting end of the adjusting member 2 when it is installed on the buckle groove 11, and the adjusting member 2 swings on the support groove 15 with the bent portion 23 as the rotation center.

[0028] As an improved embodiment, a notch 16 is formed on one side wall 13 of the groove 11, and a positioning part 24 that can extend into the notch 16 is formed on the adjusting part 22 of the adjusting member 2. The supporting groove 15 and the notch 16 are both formed on the same side wall 13. Specifically, when the adjusting part 22 of the adjusting member 2 is close to the side wall 13 with the notch 16, the adjusting member 2 can be positioned by extending into the notch 16 through the positioning part 24, making the state of the adjusting member 2 more stable.

[0029] As an improved embodiment, the end face of the support groove 15 that abuts against the bent portion 23 is arc-shaped. Specifically, the arc-shaped end face of the support groove 15 and the bent portion 23 allows the bent portion 23 to rotate more smoothly on the support groove 15, and also increases the contact area between the support groove 15 and the bent portion 23, making it easier for the support groove 15 to stabilize the bent portion 23.

[0030] As an improved embodiment, the bent portion 23 defines a mating groove 25 on the adjusting member 2. A clamping block 17 is formed within the retaining groove 11, extending from both ends into the mating groove 25. The clamping block 17 abuts against the mating groove 25, and the end face of the mating groove 25 abutting against the clamping block 17 is arc-shaped. Specifically, the clamping block 17 extending into the mating groove 25 clamps the bent portion 23 of the adjusting member 2 onto the support groove 15 within the retaining groove 11, ensuring that the bent portion 23 does not leave the support groove 15 during the swinging process of the adjusting member 2, thus guaranteeing that the adjusting member 2 swings within a certain range without deviation.

[0031] As an improved embodiment, the latch groove 11 is provided with a magnetic block 5 that abuts against the clamping blocks 17. Specifically, in order to improve the strength of the latch and make the door lock more stable when closed, the existing door lock usually uses a metal material for the latch. When the latch extends into the latch groove 14, the magnetic block 5 can attract the latch, so that after the door is closed, the latch can be stably connected in the latch box.

[0032] In one improved embodiment, the magnetic block 5 abuts against the driving part 21 of the adjusting member 2, and the fastener 4 passes through the magnetic block 5 and the driving part 21 in sequence, and is connected to the inner wall 12 of the latching groove 11. Specifically, the fastener 4 connects the adjusting member 2 and the magnetic block 5 simultaneously, and reinforces the adjusting member 2 and the magnetic block 5 at the same time.

[0033] As an improved embodiment, a support plate 26 inclined relative to one end of the drive unit 21 is formed. The support plate 26 can abut against the magnetic block 5 as the drive unit 21 swings. Specifically, when the drive unit 21 of the adjusting member 2 swings away from the inner wall 12, the drive unit 21 will tilt and push the magnetic block 5 to move outward from the groove 11. At this time, the support plate 26 moves to the lower end of the magnetic block 5 as the drive unit 21 swings, and the support plate 26 can support the magnetic block 5, so that the position of the magnetic block 5 remains stable.

[0034] As an improved embodiment, a connecting post 18 is formed on the inner wall 12 of the groove 11, which abuts against the driving part 21 of the adjusting member 2. The fastener 4 passes through the driving part 21 and is inserted into the connecting post 18. Specifically, the connecting post 18, while cooperating with the fastener 4 to fix the magnetic block 5 and the driving part 21 of the adjusting member 2, can also provide support for the driving part 21.

[0035] As an improved embodiment, the spring 3 is frustum-shaped, with the inner diameter of the end of the spring 3 abutting the driving part 21 being larger than the inner diameter of the end of the spring 3 abutting the inner wall 12. Specifically, the larger inner diameter of the end of the spring 3 abutting the inner wall 12 increases the contact area between the spring 3 and the inner wall 3, while the smaller inner diameter of the end of the spring 3 abutting the driving part 21 reduces the contact area between the spring 3 and the driving part 21, increasing the pressure on the driving part 21 when pushed by the spring 3. This makes the effect of the spring 3 pushing the driving part 21 more obvious, and the driving part 21 easier to push. Simultaneously, the frustum-shaped spring 3 is more likely to remain stable between the driving part 21 and the inner wall 13, preventing tilting.

[0036] The above embodiments are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. An adjustable latch box, comprising a housing, a latch groove formed within the housing, an inner wall extending outward from the latch groove, the inner wall extending and bending on both sides to form sidewalls, characterized in that, The buckle groove is provided with a swingable adjusting member, and a driving part is formed on the adjusting member facing the inner wall. One side of the driving part is bent and extended, and an adjusting part facing the side wall is formed. A locking groove is defined between the adjusting part and the side wall on one side. The buckle groove is also provided with a spring that abuts against the inner wall and the driving part. The spring causes the driving part to tend to move away from the inner wall. A fastener is connected between the inner wall and the driving part.

2. The adjustable locking latch box according to claim 1, characterized in that, A support groove is formed on one side wall of the groove, and a bent portion that abuts against the support groove is defined between the driving part and the adjusting part of the adjusting member.

3. The adjustable locking tongue box according to claim 2, characterized in that, A notch is formed on one side wall of the groove, and a positioning part that can extend into the notch is formed on the adjusting part of the adjusting member. The supporting groove and the notch are both formed on the same side wall.

4. The adjustable locking tongue box according to claim 2, characterized in that, The support groove and the end face that abuts on the bent part are arc-shaped.

5. The adjustable locking tongue box according to claim 2, characterized in that, The bent portion defines a mating groove on the adjusting member. A clamping block is formed in the clamping groove, extending into the mating groove from both ends. The clamping block abuts against the mating groove, and the end face of the mating groove that abuts against the clamping block is arc-shaped.

6. The adjustable locking tongue box according to claim 5, characterized in that, The groove is provided with a magnetic block that abuts against the clamping blocks.

7. The adjustable locking tongue box according to claim 6, characterized in that, The magnetic block abuts against the driving part of the adjusting member, and the fastener passes through the magnetic block and the driving part in sequence and is connected to the inner wall of the buckle groove.

8. The adjustable locking tongue box according to claim 6, characterized in that, A support plate inclined relative to the drive unit is formed on one end of the drive unit, and the support plate can resist the magnetic block as the drive unit swings.

9. The adjustable locking tongue box according to claim 1, characterized in that, A connecting post is formed on the inner wall of the groove, which abuts against the driving part of the adjusting member. The fastener passes through the driving part and is inserted into the connecting post.

10. The adjustable locking tongue box according to claim 1, characterized in that, The spring is shaped like a frustum, and the inner diameter of the spring at the end abutting the drive part is larger than the inner diameter of the spring at the end abutting the inner wall.

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