An adjustable hasp
By designing an adjustable strike box and using guides and adjustment zones to change the locking zone space, the problems of bolt wear and door shaking are solved, achieving smooth bolt movement and quiet door closing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BUYANG GRP
- Filing Date
- 2025-05-12
- Publication Date
- 2026-05-26
AI Technical Summary
Traditional lock bodies have problems such as large gaps between the bolt and the lock plate, severe wear, which causes the door to shake and make noise, and cannot meet the need for quiet closing.
Design an adjustable strike box comprising a strike box embedded in a door frame and a strike plate mounted on the door frame. The space of the locking zone is changed by guides and adjustment areas, and the movement of the strike tongue is guided by guide plates and rollers to reduce wear and wobbling.
It achieves smooth movement of the latch, reduces wear and noise, prevents door shaking, and improves the door's performance and quietness.
Smart Images
Figure CN224282223U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lock box installation structure technology, and in particular to an adjustable lock box. Background Technology
[0002] With social development and improved living standards, people have higher requirements for the performance of doors. However, traditional lock bodies have problems such as outdated technology, gaps between the lock plate and the lock tongue, and easy shaking of the door leaf and frame. At the same time, there is also a demand for better decorative effect and better functionality of doors. In special places such as schools and hospitals, a quieter closing effect is usually required to reduce noise interference, but conventional door lock bodies cannot solve these problems.
[0003] Due to the unique structure of door locks, the lock body needs to be installed inside the door leaf during operation, while the lock box and lock plate are installed within the door leaf frame. This presents the following problems during installation and use:
[0004] Firstly, because there are no transitional parts between the bolt and the lock box when they are closed, there will be a certain amount of resistance, which will cause wear on the bolt and affect its performance.
[0005] Secondly, there is a gap between the latch and the locking plate when they are engaged. As the usage time increases, the gap between the locking plate and the latch will become larger and larger, which can easily cause the door to shake and make noise during daily use. Utility Model Content
[0006] The purpose of this invention is to solve the problem in the prior art where wear between the latch and the lock plate easily causes the door to shake and make noise, and to propose an adjustable latch box.
[0007] To achieve the above objectives, the present invention adopts the following technical solution:
[0008] An adjustable strike plate includes a strike plate embedded in a door frame and a strike plate mounted on the door frame. The strike plate and the strike plate form a locking area for accommodating the bolt. The strike plate also includes a base mounted in the locking area and a guide mounted on the base for guiding the bolt into the locking area. An adjustment area is provided between the guide and the base for changing the space of the locking area.
[0009] To better guide the bolt into the lock box, preferably, the guide includes a guide plate arranged along the bolt extension direction, an adjustment plate and a guide plate respectively installed on opposite sides of the guide plate, the adjustment plate being installed on the base, and the guide plate being attached to the lock plate.
[0010] To reduce the wobbling of the latch within the lock box, the adjustment area further includes a slot formed on the adjustment plate, which is locked to the base by screws. When the locking position of the slot on the base is changed, the space of the locking area is expanded or reduced.
[0011] Furthermore, it also includes a shaped gasket, with an adjustment plate positioned between the shaped gasket and the base. A screw passes through the shaped gasket, and when the screw is tightened, the shaped gasket presses the adjustment plate against the base.
[0012] To further reduce locking noise, the adjustment area also includes a roller rotatably connected to the guide, the guide plate having a through groove, the circumferential surface of the roller extending through the through groove to the locking area.
[0013] To better guide the retraction of the bolt, a guide surface is further formed on the side of the guide plate away from the guide plate, which is used to drive the bolt to perform telescopic movement.
[0014] Furthermore, the guiding surface is a rounded surface or a chamfered surface.
[0015] To improve the guidance of the lock plate to the bolt, a sheet metal part is further formed on one side of the lock plate, the sheet metal part extends into the lock box, and a guide plate is disposed on one side of the sheet metal part.
[0016] To enhance the security of the door lock, preferably, the lock plate is provided with a dividing plate, the lock box is equipped with a support member, the dividing plate is locked to the support member, the dividing plate divides the lock box into at least one locking area, and a guide member is installed in one of the locking areas.
[0017] Furthermore, a bracket is fixedly connected to the base, and one of the dividing plates is locked onto the bracket.
[0018] Compared with the prior art, the present invention provides an adjustable locking box, which has the following advantages:
[0019] 1. The adjustable lock box is attached to the side of the lock plate near the sheet metal part by a guide plate, and the guide plate and the arc transition of the sheet metal part are matched with a guide surface. The guide surface is rounded or chamfered. The arc surface of the lock tongue can contact the arc transition and the guide surface to drive the lock tongue to make more stable and smooth extension and retraction movements. This not only prevents the lock tongue from jamming, but also reduces the wear of the lock tongue.
[0020] 2. This adjustable latch box expands or shrinks the locking area by changing the locking position of the strip groove on the base, thereby changing the gap between the latch and the locking plate as needed to prevent the door leaf from shaking due to wear and tear after long-term use.
[0021] 3. The adjustable locking box uses the surface contact of irregularly shaped gaskets to fix the adjusting plate on the base, and by increasing the friction, the position of the adjusting plate is controlled;
[0022] 4. The adjustable locking box uses the circumferential surface of the roller to replace the guide plate and abut against the locking surface of the bolt, thereby further reducing the amount of bolt wobble, reducing large-area wear on the bolt, and delaying the time of bolt wobble in the locking area.
[0023] The parts not mentioned in this device are the same as or can be implemented using existing technology. This utility model installs a guide that can adjust the space of the locking area within the locking area. On the one hand, this makes the bolt enter the locking area more smoothly and steadily, reducing wear on the bolt. On the other hand, it makes the size of the locking area fit the thickness of the bolt as closely as possible, preventing gaps between the bolt and the locking area from causing impacts, thereby effectively preventing the door from shaking and making noise during use. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the structure of an adjustable locking box proposed in this utility model;
[0025] Figure 2 This is a schematic diagram showing the unfolded design of an adjustable locking box according to this utility model;
[0026] Figure 3 This is a partial structural diagram of an adjustable locking box proposed in this utility model;
[0027] Figure 4 This is a partial perspective view of an adjustable locking box proposed in this utility model.
[0028] Figure 5 This is a partial perspective view of an adjustable locking box proposed in this utility model.
[0029] Figure 6 This is a partial third-view perspective view of an adjustable locking box proposed in this utility model.
[0030] Figure 7 This is a partially unfolded schematic diagram of an adjustable locking box proposed in this utility model.
[0031] In the diagram: 1. Lock box; 101. Support component; 2. Locking plate; 201. Dividing plate; 202. Sheet metal part; 3. Irregularly shaped gasket; 301. Positioning hole; 302. Screw; 4. Guide plate; 401. Adjusting plate; 402. Guide plate; 403. Through groove; 404. Strip groove; 405. Guide surface; 5. Roller; 6. Base; 601. Bracket. Detailed Implementation
[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0033] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Example
[0034] Reference Figures 1-7 An adjustable strike plate includes a strike plate 1 embedded in a door frame and a strike plate 2 mounted on the door frame. The strike plate 2 has an integrally formed sheet metal part 202 extending towards the strike plate 1 on the side that contacts the bolt. The sheet metal part 202 is perpendicular to the main body plane of the strike plate 2, and the coupling point between the two has an arc-shaped transition. Here, the strike plate 2 has at least one dividing plate 201, forming one or more locking areas with the strike plate 2 and the strike plate 1. This area can accommodate both the bolt and the bolt to meet the needs of existing home security. A sheet metal base 6 is installed in one of the locking areas accommodating the bolt. A guide is adjustablely mounted on the base 6 to guide the bolt smoothly into the locking area. An adjustment area is provided between the guide and the base 6 to change the space of the locking area, preventing the bolt from wobbling within the locking area.
[0035] In the above structure, by installing a guide that can adjust the space of the locking area within the locking area, on the one hand, the bolt can enter the locking area more smoothly and steadily, reducing wear on the bolt; on the other hand, the size of the locking area is made to fit the thickness of the bolt as closely as possible, preventing gaps between the bolt and the space of the locking area from causing impacts, thereby effectively preventing the door from shaking and making noise during use.
[0036] Based on the above design, the structure and function of the guide component are further designed. It includes a guide plate 4 arranged along the extension and retraction direction of the latch, that is, a vertical plate perpendicular to the lock plate 2. An adjustment plate 401 and a guide plate 402 are respectively installed on opposite sides of the guide plate 4. The adjustment plate 401 is installed on the base 6. Since its adjustment area is designed on the adjustment plate 401, its installation position on the base 6 can be changed. The guide plate 402 is attached to the side of the lock plate 2 near the sheet metal part 202, and the guide plate 402 and the arc transition of the sheet metal part 202 are matched with a guide surface 405. The guide surface 405 is rounded or chamfered. The travel arc surface of the latch can contact the arc transition and the guide surface 405 to drive the latch to move more smoothly and smoothly. This can not only prevent the latch from jamming, but also reduce the wear of the latch.
[0037] Specifically, the adjustment area includes a strip groove 404 formed on the adjustment plate 401. The length of the strip groove 404 is 1-2 times its width. The screw 302 passes through the strip groove 404 to lock the adjustment plate 401 onto the base 6. When the locking position of the strip groove 404 on the base 6 is changed, the space of the locking area is expanded or reduced, thereby changing the gap between the latch and the locking plate 2 as needed to prevent the door leaf from shaking due to wear after long-term use.
[0038] To improve the reliability of the connection, an additional irregularly shaped gasket 3 is added. Positioning holes 301 are provided on both the irregularly shaped gasket 3 and the base 6. The adjusting plate 401 is set between the irregularly shaped gasket 3 and the base 6. When the screw 302 passes through the positioning hole 301 and the strip groove 404 and is tightened, the irregularly shaped gasket 3 presses the adjusting plate 401 onto the base 6. The adjusting plate 401 can be fixed on the base 6 through the surface contact of the irregularly shaped gasket 3. By increasing the friction, the position of the adjusting plate 401 is controlled.
[0039] In addition, the adjustment area also includes a roller 5 rotatably connected to the guide member. A through groove 403 is provided on the guide plate 4. The circumferential surface of the roller 5 extends through the through groove 403 to the locking area. Because the protrusion of the roller 5 causes the locking tongue to retract backward, after passing the roller 5, the distance between it and the guide plate 4 increases, and the locking tongue returns to its original shape. The circumferential surface of the roller 5 can replace the guide plate 4 and abut against the locking surface of the locking tongue, thereby further reducing the amount of locking tongue shaking, reducing the large-area wear on the locking tongue, and delaying the shaking time of the locking tongue in the locking area.
[0040] A support member 101 is installed on the lock box 1 by bolts and nuts. The dividing plate 201 is locked onto the support member 101. A bracket 601 is fixedly connected to the base 6, which also serves as the support member 101. This ensures the stability between the locking areas. Since the bracket 601 is a plate-shaped structure, it can form a relatively sealed space for the locking area that houses the lock tongue, thereby reducing corrosion of the lock tongue and improving its performance.
[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. An adjustable strike plate, comprising a strike plate (1) embedded in a door frame and a strike plate (2) mounted on the door frame, wherein the strike plate (2) and the strike plate (1) form a locking area for accommodating the bolt, characterized in that, Also includes: Base (6) installed in the locking zone; A guide element mounted on the base (6) is used to guide the bolt into the locking zone. Among them, there is an adjustment area between the guide and the base (6) to change the space of the locking area.
2. The adjustable locking box according to claim 1, characterized in that, The guide includes a guide plate (4) arranged along the extension and retraction direction of the latch. An adjustment plate (401) and a guide plate (402) are respectively installed on opposite sides of the guide plate (4). The adjustment plate (401) is installed on the base (6), and the guide plate (402) is attached to the lock plate (2).
3. An adjustable locking box according to claim 2, characterized in that, The adjustment area includes a strip groove (404) formed on the adjustment plate (401), which is locked to the base (6) by screws (302). When the locking position of the strip groove (404) on the base (6) is changed, the space of the locking area is expanded or reduced.
4. An adjustable locking box according to claim 3, characterized in that, It also includes a shaped gasket (3), an adjusting plate (401) is set between the shaped gasket (3) and the base (6), and a screw (302) passes through the shaped gasket (3). When the screw (302) is tightened, the shaped gasket (3) presses the adjusting plate (401) onto the base (6).
5. An adjustable locking box according to claim 2, characterized in that, The adjustment area also includes a roller (5) rotatably connected to the guide member. A through groove (403) is provided on the guide plate (4). The circumferential surface of the roller (5) extends through the through groove (403) to the locking area.
6. An adjustable locking box according to claim 2, characterized in that, The guide plate (402) has a guide surface (405) on the side away from the guide plate (4), and the guide surface (405) is used to drive the lock tongue to perform telescopic movement.
7. An adjustable locking box according to claim 6, characterized in that, The guide surface (405) is a rounded surface or a chamfered surface.
8. An adjustable locking box according to claim 2, characterized in that, A sheet metal part (202) is formed on one side of the locking plate (2), the sheet metal part (202) extends toward the lock box (1), and a guide plate (402) is disposed on one side of the sheet metal part (202).
9. An adjustable locking box according to claim 1, characterized in that, A dividing plate (201) is provided on the locking plate (2), and a support member (101) is installed on the lock box (1). The dividing plate (201) is locked on the support member (101). The dividing plate (201) divides the lock box (1) into at least one locking area, and a guide member is installed in one of the locking areas.
10. An adjustable locking box according to claim 9, characterized in that, A bracket (601) is fixedly connected to the base (6), and one of the dividing plates (201) is locked onto the bracket (601).