Adjustable lock catch plate

Abstract

The utility model relates to an adjustable lock catch plate, the lock catch plate has a length direction, the lock catch plate is provided with a spring bolt accommodating hole, and an adjusting assembly is arranged under the spring bolt accommodating hole. The adjusting assembly comprises an adjusting box and an adjusting piece which is contained in the adjusting box and can be located at different positions relative to the adjusting box in the direction perpendicular to the length direction. The adjusting box is of a box body structure with an opening in the top and an opening in one side, and a screw meshing part is arranged on the bottom wall of the box body; the adjusting sheet is of a bent sheet-shaped structure and comprises a planar bottom provided with at least one oval hole and an adjusting part vertically connected with the bottom and extending in the vertical direction. At least one locking screw penetrates through the oval hole to be meshed with the screw meshing part, so that the adjusting piece is fixed in the adjusting box, and the adjusting part seals the opening in one side of the box body. The utility model has the advantages of convenience in construction, large adjusting range, attractive appearance and the like.

Description

Technical Field

[0001] The utility model relates to an accessory of a door leaf lock, in particular to a lock plate installed on a door frame or a fixed door leaf. Background Art

[0002] The strike plate is installed on the door frame or the fixed leaf of a double-leaf door. Its function is to cooperate with the lock body of the lock when the door is closed to ensure the safety of the lock. At the same time, it must ensure that the door can be opened and closed smoothly and does not shake after the door is closed. Figure 1 As shown. The strike plate is in the shape of an elongated strip, and is provided with a movable tongue clearance hole 21, a safety tongue clearance hole 22 and a safety tongue clearance hole 23 in sequence in the length direction. These clearance holes cooperate with the corresponding lock tongues, namely the movable tongue, the safety tongue and the safety tongue. Specifically, when the door leaf is closed, the movable tongue first contacts the strike plate, and then is inserted into the movable tongue clearance hole 21, and then the lock body safety tongue is ejected and inserted into the strike plate safety tongue clearance 22 by turning the lock handle or key. The safety tongue is when the person returns to the room, manually ejects the safety tongue, and inserts it into the safety tongue clearance hole 23. The safety tongue cannot be opened by a handle or a key, and can only be opened manually to ensure that the door lock cannot be opened technically.

[0003] During the manufacturing process, due to the use of laser cutting machines for cutting, the position errors of various matching holes during flat plate processing can be guaranteed. However, there are errors in the door frame bending process, the door leaf skeleton, the door leaf edge bending process and the door frame installation at the project site, which causes the door frame and door leaf to shake after installation. The owner often does not accept it. In order to reduce the shaking, a lock tongue matching position 221 is provided on the tongue yielding hole 21 of the lock plate. It is arc-shaped. The matching clearance between the lock plate and the movable tongue of the lock body is adjusted by grinding to ensure smooth opening and closing of the door leaf, and the shaking amount after the door leaf is closed is within 1mm. However, such a structure requires relatively high technical requirements for on-site installers and is relatively time-consuming. In order to facilitate on-site installers, it has become an urgent desire to develop an adjustable lock plate based on the analysis of the matching between the lock body lock tongue and the lock plate. Utility Model Content

[0004] The utility model aims to provide an adjustable locking plate which is easy to install and has a large adjustment range.

[0005] In order to achieve the above-mentioned purpose, the utility model provides an adjustable locking plate, wherein the locking plate has a length direction and is provided with a locking tongue accommodating hole.

[0006] An adjustment component is provided directly below the locking tongue accommodating hole, and the adjustment component includes an adjustment box and an adjustment sheet accommodated in the adjustment box and which can be located at different positions relative to the adjustment box in a direction perpendicular to the length; the adjustment box is a box structure with an open top and an open side, and a screw engaging portion is provided on the bottom wall of the box body; the adjustment sheet is a bent sheet structure, including a flat bottom with at least one elliptical hole, and a vertically extending adjustment portion vertically connected to the bottom; at least one locking screw passes through the elliptical hole and engages with the screw engaging portion, thereby fixing the adjustment sheet in the adjustment box, and the adjustment portion closes the one side opening of the box body.

[0007] Furthermore, the screw engaging portion is a rivet nut riveted to the bottom wall of the box body from the outside of the box body, and the number of the elliptical holes is two.

[0008] Furthermore, the adjustment plate is provided with an outward-turned top edge on the outer side of the adjustment portion, and the box body is provided with a pair of outward-turned fixing wings on the top of a pair of side walls, and the box body is fixed to the bottom of the lock plate body through the fixing wings, the top edge is not higher than the fixing wings, and the top edge and the fixing wings are both lower than the lock tongue accommodating hole, and the elliptical hole is an oblong hole.

[0009] The beneficial effects of the utility model are:

[0010] Firstly, since there is an adjusting piece contained in the adjusting box and can be located at different positions relative to the adjusting box in a direction perpendicular to the length, the distance between the door leaf and the door frame can be conveniently controlled within a suitable range when the door leaf is closed, which is convenient for construction;

[0011] Secondly, since one side of the adjustment box is open, the adjustable range in the box can break through the limitation of the side wall, that is, the adjustment piece can even exceed the range defined by the solid walls of the adjustment box;

[0012] Thirdly, since the adjustment box is located below the lock tongue accommodating hole, the door frame or fixed door leaf on which the lock buckle is installed has a very good appearance. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of a locking plate in the prior art.

[0014] Figure 2 It is a schematic diagram of the adjustable locking plate of the utility model.

[0015] Figure 3 It is a schematic diagram of the adjustment component of the adjustable locking plate of the utility model.

[0016] Figure 4 It is a schematic diagram of the adjustment box of the adjustable locking plate of the utility model.

[0017] Figure 5 It is a schematic diagram of the adjusting piece of the adjustable locking plate of the utility model.

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments. Implementation

[0019] See also Figure 2 The adjustable lock plate 10 of the utility model is long and narrow, and the left and right directions in the figure are the length directions. The adjustable lock plate 10 has a main body 11, which is provided with a lock tongue receiving hole 111. The receiving hole is preferably matched with the movable lock tongue, and of course it can also be used for other lock tongues, as long as it is used to limit the forward and backward swinging distance of the door leaf. An adjustment component 12 is provided directly below the lock tongue receiving hole 111.

[0020] See also Figures 3 to 5 The adjustment assembly 12 includes an adjustment box 121 and an adjustment piece 123 contained in the adjustment box and which can be located at different positions relative to the adjustment box in a direction perpendicular to the length. The adjustment box 121 is a box structure with an open top and an open side. Specifically, it includes a pair of side walls 1211 at both ends, a side wall 1212 connecting the two 1211 and parallel to the length direction of the plate body 11, and a bottom wall 1213. The top of the adjustment box 121 is open, and the relative positions of the side walls 1212 are open, which facilitates the adjustment of the position of the adjustment piece 123. The bottom wall 1213 of the box body is provided with a screw engagement portion, and the screw engagement portion is a rivet nut 12132 riveted to the bottom wall of the box body from the outside of the box body, and the small head of the rivet nut 12132 enters the through hole 12131. The number of the rivet nuts 12132 is preferably two.

[0021] The adjusting piece 123 is a bent sheet structure, including a flat bottom 1231 with two elliptical holes 12311, and a vertically extending adjusting portion 1232 vertically connected to the bottom. The adjusting portion will be located on one side of the lock tongue in the front-rear direction of the door leaf when the door leaf is closed, thereby limiting the position of the corresponding lock tongue. The elliptical hole 12311 is preferably an oblong hole, and the position variation range of the adjusting piece can be set by setting its length.

[0022] The locking screw 122 passes through the elliptical hole 12311 and engages with the screw engaging portion, thereby fixing the adjustment sheet 123 in the adjustment box 121, and the adjustment portion 1232 closes the one side opening of the box body, that is, the adjustment portion 1232 is located in or near the opening.

[0023] The adjusting piece 123 is provided with an outward-turned top edge 12321 on the outer side of the adjusting portion, and the box body 121 is provided with a pair of outward-turned fixing wings 12111 on the top of the side wall 1211. The box body is welded to the bottom of the lock plate main body 11 through the fixing wings 12111, and the top edge 12321 is not higher than the fixing wings 12111, and the top edge and the fixing wings are both lower than the lock tongue accommodating hole 111. This makes it convenient for the adjusting piece 123 to change its position in the box, and at the same time, prevents the structure inside the door frame or door leaf from being exposed from the box.

[0024] When leaving the factory, the adjustment piece is in a preset position. When installing the door on site, loosen the locking screw 122 to allow the adjustment piece 123 to move parallel to the optimal position and then tighten the screw. Ensure that the door leaf opens and closes smoothly, and the shaking amount after the door leaf is closed is within 1mm.

[0025] Finally, it should be emphasized that the present invention is not limited to the above-mentioned implementation mode. The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An adjustable locking plate, the locking plate having a length direction, the locking plate being provided with a locking tongue receiving hole, characterized in that: An adjustment component is provided directly below the locking tongue accommodating hole, and the adjustment component includes an adjustment box and an adjustment sheet accommodated in the adjustment box and which can be located at different positions relative to the adjustment box in a direction perpendicular to the length; the adjustment box is a box structure with an open top and an open side, and a screw engaging portion is provided on the bottom wall of the box body; the adjustment sheet is a bent sheet structure, including a flat bottom with at least one elliptical hole, and a vertically extending adjustment portion vertically connected to the bottom; at least one locking screw passes through the elliptical hole and engages with the screw engaging portion, thereby fixing the adjustment sheet in the adjustment box, and the adjustment portion closes the one side opening of the box body.

2. The adjustable locking plate according to claim 1, characterized in that: The screw engaging portion is a rivet nut riveted to the bottom wall of the box body from the outside of the box body, and the number of the elliptical holes is two.

3. The adjustable locking plate according to claim 2, characterized in that: The adjusting plate is provided with an outward-turned top edge on the outer side of the adjusting portion, and the box body is provided with a pair of outward-turned fixing wings on the top of a pair of side walls. The box body is fixed to the bottom of the locking plate body through the fixing wings, and the top edge is not higher than the fixing wings, and the top edge and the fixing wings are both lower than the locking tongue accommodating hole.

4. The adjustable locking plate according to any one of claims 1 to 3, characterized in that: The elliptical hole is an oblong hole.

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