Prying-resistant push-pull lock
By using the interfering structure between the rolling member and the push-pull lock housing in the push-pull lock, the lock hook assembly is fixed, and the existing push-pull lock does not have anti-pick function is solved, which realizes the anti-pick effect of the lock hook assembly and enhances safety.
Patent Information
- Application Number
- CN202420022296.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-03
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-01-03
AI Technical Summary
The existing push and plugging locks do not have anti-plitting function and are easily pried open by tools such as wire outdoors, which poses a major safety hazard.
An anti-pick-push-pull lock is designed, and an interference structure between the rolling member and the push-pull lock housing is adopted. The lock hook assembly is fixed in a locked state and cannot be opened by prying outdoors.
The anti-picking function of the lock hook assembly is realized, avoiding safety hazards, and the operation of unlocking and locking is simple, the structure is stable, and it is easy to produce and process.
Smart Images
Figure CN222576419U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of door and window push-pull locks, in particular to a pry-proof push-pull lock. Background Art
[0002] Sliding locks are usually installed on doors and windows. The lock hook and the lock block on the frame overlap each other to lock the doors and windows. Turning the switch body on the indoor side can drive the lock hook to disengage the lock block, thereby unlocking the door. Sliding locks are widely used because of their simple operation.
[0003] The existing push-pull lock does not have an anti-pry function. The lock hook can be easily pried with a wire or the like on the outdoor side, causing the lock hook to separate from the lock block, thereby causing the door and window to be pried open, posing a major safety hazard. Utility Model Content
[0004] Based on this, the purpose of the utility model is to provide an anti-pry push-pull lock with an anti-pry function.
[0005] The utility model adopts the following technical solutions:
[0006] A pry-proof push-pull lock, comprising a push-pull lock housing, a switch body and a lock hook assembly; the switch body is arranged on the push-pull lock housing and can slide along the length direction of the push-pull lock housing; the lock hook assembly is arranged on the push-pull lock housing and one end of the lock hook assembly is connected to the switch body, a protrusion is arranged at one end of the switch body close to the lock hook assembly, a movable groove is arranged at the bottom of the lock hook assembly, the protrusion is movably connected in the movable groove, and a movable gap is formed between the protrusion and the side wall of the movable groove; an inclined step is arranged at one end of the switch body, an extension part is arranged at one end of the lock hook assembly, a vertically arranged limiting hole is penetrated through the extension part, the limiting hole is arranged above the inclined step, a movably connected rolling member is arranged inside the limiting hole, and the rolling member moves along the inclined step;
[0007] Wherein, when the rolling element is located at the top of the inclined step, the upper end of the rolling element passes through the limiting hole and interferes with the push-pull lock housing, and the lock hook assembly is fixed to achieve anti-prying.
[0008] Preferably, the rolling element is spherical, the limiting hole is cylindrical, and the rolling element moves up and down inside the limiting hole.
[0009] Preferably, the push-pull lock shell is provided with a long strip-shaped through hole.
[0010] Preferably, the push-pull lock housing comprises a bottom plate and two side plates symmetrically arranged at the upper end of the bottom plate, and the switch body and the lock hook assembly slide between the side plates.
[0011] Preferably, opposite surfaces of the side panels are provided with relatively arranged positioning blocks, and the positioning blocks are semicircular; one end of the switch body away from the lock hook assembly is provided with a barb, and the barb cooperates with the positioning block to achieve positioning.
[0012] Preferably, a notch is provided on the side plate, and an arc-shaped limiting arm is provided at one end of the switch body away from the locking hook assembly, and the outward end of the limiting arm always moves in the notch.
[0013] Preferably, the lock hook assembly includes a slider disposed on the push-pull lock housing, an adjustment block assembled and connected to the slider, and a lock hook body connected to the adjustment block; the extension portion and the slider are an integrated structure; the lock hook body is used to open or lock the anti-pry push-pull lock.
[0014] Preferably, the upper end surface of the sliding block is provided with a slot, and the adjusting block is locked in the slot.
[0015] Preferably, the locking hook assembly also includes an adjusting screw, a connecting groove with a semicircular cross-section is provided at the inner bottom of the slot, a threaded groove matching the adjusting screw is provided at the bottom of the adjusting block, the adjusting screw is arranged between the connecting groove and the threaded groove, and the adjusting screw is used to lock the slider and the adjusting block.
[0016] Preferably, the upper end of the adjustment block is provided with a diagonally arranged adjustment column, the lock hook body is penetrated with a connecting hole, and the adjustment column is inserted into the connecting hole to assemble and connect the adjustment block and the lock hook body.
[0017] The beneficial effects of the utility model are:
[0018] The anti-pry push-pull lock involved in the utility model realizes the anti-pry function through the interference between the rolling element and the push-pull lock shell. The unlocking and locking operations are simple, and the structure is stable and easy to produce and process. Specifically, in the locked state, the rolling element is at the top of the inclined step of the switch body. When the lock hook assembly is pried with a wire on the outdoor side, the upper end of the rolling element interferes with the push-pull lock shell, and the lock hook assembly cannot be pulled, thereby realizing anti-pry and avoiding safety hazards. When unlocking is required, the switch body is toggled on the indoor side; there is an active gap between the switch body and the lock hook assembly. When the switch body moves in the active gap, as the switch body moves, the rolling element slides down along the inclined step to achieve unlocking; when the movement distance of the switch body is greater than the active gap, the switch body will drive the lock hook assembly to move to achieve the opening of the door and window. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 This is a schematic diagram of the first overall structure of the utility model;
[0020] Figure 2This is a second overall structural schematic diagram of the utility model;
[0021] Figure 3 This is an exploded schematic diagram of the first structure of the utility model;
[0022] Figure 4 This is an exploded schematic diagram of the second structure of the utility model;
[0023] Figure 5 This is a diagram of the utility model in use in a locked state;
[0024] Figure 6 This is a diagram of the use state of the utility model in the open state;
[0025] Figure 7 It is a partial cross-sectional view of the utility model in a locked state;
[0026] Figure 8 It is a partial cross-sectional view of the utility model in an intermediate state;
[0027] Fig. 9 It is a partial cross-sectional view of the utility model in an open state;
[0028] Fig.10 It is a partial structural schematic diagram of the utility model.
[0029] Numbers in the figure:
[0030] 10- push-pull lock housing; 11- bottom plate; 12- side plate; 13- positioning block; 14- notch;
[0031] 20-switch body; 21-inclined step; 22-bump; 23-barb; 24-limiting arm;
[0032] 30-lock hook assembly; 31-extension part; 311-limiting hole; 32-movable slot; 33-slider; 331-card slot; 332-connecting slot; 34-adjusting block; 341-threaded slot; 342-adjusting column; 35-lock hook body; 351-connecting hole; 36-adjusting screw;
[0033] 40-activity gap;
[0034] 50- rolling parts;
[0035] 60-Door and window lock block;
[0036] 70-Accommodation space. DETAILED DESCRIPTION
[0037] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0038] In the description of the present invention, it should be noted that the terms "vertical direction", "upper", "lower", "horizontal" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, "first", "second", "third", and "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0039] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, a mechanical connection, an electrical connection, a direct connection, or a connection through an intermediate medium, or the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0040] like Figures 1 to 10 As shown, the anti-pry push-pull lock of the utility model comprises a push-pull lock housing 10 , a switch body 20 , a lock hook assembly 30 , and a rolling element 50 .
[0041] Among them Figure 3 , Figure 4 as well as Fig.10As shown, a protrusion 22 is provided at one end of the switch body 20 close to the lock hook assembly 30, and a movable groove 32 is provided at the bottom of the lock hook assembly 30. The above-mentioned protrusion 22 is movably connected in the movable groove 32, and a movable gap 40 in the extension direction is formed between the protrusion 22 and the side wall of the movable groove 32; an inclined step 21 is provided at one end of the switch body 20, and an extension portion 31 is provided at one end of the lock hook assembly 30, and an accommodating space 70 is formed between the inclined step 21 and the extension portion 31, and a limiting hole 311 connected with the accommodating space 70 is vertically penetrated on the extension portion 31, and the limiting hole 311 is used to accommodate the rolling member 50. When the switch body 20 and the lock hook assembly 30 are close to each other, the movable gap 40 is reduced, the rolling member 50 moves along the inclined step 21, and moves upward in the thickness direction along the limiting hole 311 driven by the inclined step 21, the upper end of the rolling member 50 passes through the limiting hole 311 and interferes with the push-pull lock housing 10, locking the lock hook assembly 30 to achieve anti-pry. When the switch body 20 and the lock hook assembly 30 are away from each other, the movable gap 40 is increased, the rolling member 50 moves along the inclined step 21, and moves downward in the thickness direction along the limiting hole 311 driven by the inclined step 21, until the rolling member 50 moves to the bottom end of the inclined step 21, at which time the rolling member 50 does not interfere with the push-pull lock housing 10.
[0042] Specifically, the push-pull lock housing 10 includes a bottom plate 11 and side plates 12 symmetrically distributed on the upper end of the bottom plate 11, and the switch body 20 and the lock hook assembly 30 slide between the two side plates 12. A positioning block 13 is arranged opposite to the side plate 12, and the positioning block is semicircular, and a notch 14 is arranged on the side plate 12; the positioning block 13 plays a role in positioning the switch body 20, and the notch 14 and the switch body 20 play a role in limiting.
[0043] Specifically, a barb 23 is provided at one end of the switch body 20 away from the lock hook assembly 30, and the barb 23 cooperates with the positioning block 13 to achieve positioning. An arc-shaped limit arm 24 is provided at one end of the switch body 20 away from the lock hook assembly 30, and the outward end of the limit arm 24 always moves in the notch 14 to limit the movable travel of the switch body 20.
[0044] Specifically, the lock hook assembly 30 includes a slider 33 disposed on the push-pull lock housing 10, an adjustment block 34 assembled and connected to the slider 33, and a lock hook body 35 connected to the slider 33. The extension portion 31 and the slider 33 are an integrated structure, and the lock hook body 35 is used to open or lock the anti-pry push-pull lock. Further, a card slot 331 is provided on the upper end surface of the slider 33, and the adjustment block 34 is carded in the card slot 331. In addition, the lock hook assembly 30 also includes an adjusting screw 36. A connecting groove 332 with a semicircular cross-section is provided at the bottom inner side of the card slot 331. A threaded groove 341 adapted to the adjusting screw 36 is provided at the bottom of the adjusting block 34. The adjusting screw 36 is arranged between the connecting groove 332 and the threaded groove 341. The adjusting screw 36 is used to lock the slider 33 and the adjusting block 34. A diagonally arranged adjusting column 342 is provided at the upper end of the adjusting block 34. The lock hook body is penetrated by a connecting hole 351. The adjusting column 342 is floatingly plugged into the connecting hole 351 to assemble and connect the adjusting block 34 and the lock hook body 35.
[0045] Specifically, the rolling member 50 is spherical, the limiting hole 311 is cylindrical, and the rolling member 50 moves up and down inside the limiting hole 311 . The spherical shape of the rolling member 50 can better roll along the inclined step 21 .
[0046] like Figure 5 and Figure 7 The window is locked, at which time the lock hook assembly 30 overlaps the window lock block 60, the rolling element 50 is located at the top of the inclined step 21, and the lock hook assembly 30 cannot be pulled; Figure 8 The middle state is shown, at which the rolling member 50 is located at the bottom end of the inclined step 21, and the lock hook assembly 30 can be pulled; Figure 6 and Fig. 9 The illustrated state is that the door and window are in an open state, at which time the lock hook assembly 30 is separated from the door and window lock block 60 .
[0047] When the indoor side is in normal use, the process from locking to opening is: the initial state is Figure 7 In the locked state shown in FIG. 1 , the switch body 20 is toggled, and there is an active gap 40 between the switch body 20 and the lock hook assembly 30. When the switch body 20 moves in the active gap 40, the rolling element 50 moves downward in the limiting hole 311 along with the lateral movement of the inclined step 21 until the switch body 20 moves in the active gap 40. Figure 8 As shown, the rolling member 50 moves to the bottom of the inclined step 21; continue to toggle the switch body 20, the switch body 20 moves beyond the active gap 40, and the switch body 20 drives the lock hook assembly 30 to move, such as Fig. 9 As shown, the lock hook assembly 30 is disengaged from the door and window lock block 60 to open the door and window. When one side is used normally indoors, on the contrary, it can be opened to locked.
[0048] When prying from the outside, the door lock Figure 7 The figure shows the locked state, and the rolling member 50 is located at the top of the inclined step 21; when the lock hook assembly 30 is pried with an object such as a wire, since the switch body 20 is in a fixed state, the rolling member 50 is always located at the top of the step. At this time, the upper part of the rolling member 50 interferes with the push-pull lock housing 10, so that the lock hook assembly 30 cannot move and is always overlapped with the door and window lock block 60 to achieve anti-prying.
[0049] Compared with the prior art, the anti-pry push-pull lock of the utility model, in the locked state, the rolling element 50 is at the top of the inclined step 21 of the switch body 20. When the lock hook assembly 30 is pried with a wire on the outdoor side, the upper end of the rolling element 50 interferes with the push-pull lock housing 10, and the lock hook assembly 30 cannot be pulled, thereby achieving anti-pry and avoiding safety hazards. When unlocking is required, the switch body 20 is toggled on the indoor side; there is an active gap 40 between the switch body 20 and the lock hook assembly 30. When the switch body 20 moves in the active gap 40, as the switch body 20 moves, the rolling element 50 slides down along the inclined step 21 to achieve unlocking; when the movement distance of the switch body 20 is greater than the active gap 40, the switch body 20 will drive the lock hook assembly 30 to move, and the doors and windows will be opened.
[0050] The above only expresses the preferred technical solution of the utility model, and its description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, and the utility model is also intended to include these modifications and modifications.
Claims
1. A pry-proof push-pull lock, characterized in that: It comprises a push-pull lock shell, a switch body and a lock hook assembly; the switch body is arranged on the push-pull lock shell and can slide along the length direction of the push-pull lock shell; the lock hook assembly is arranged on the push-pull lock shell and one end of the lock hook assembly is connected to the switch body, a protrusion is arranged at one end of the switch body close to the lock hook assembly, a movable groove is arranged at the bottom of the lock hook assembly, the protrusion is movably connected in the movable groove, and a movable gap is formed between the protrusion and the side wall of the movable groove; an inclined step is arranged at one end of the switch body, an extension part is arranged at one end of the lock hook assembly, a vertically arranged limiting hole is penetrated through the extension part, the limiting hole is arranged above the inclined step, a movably connected rolling member is arranged inside the limiting hole, and the rolling member moves along the inclined step; Wherein, when the rolling element is located at the top of the inclined step, the upper end of the rolling element passes through the limiting hole and interferes with the push-pull lock housing, and the lock hook assembly is fixed to achieve anti-prying.
2. The anti-pry push-pull lock according to claim 1, characterized in that: The rolling element is spherical, the limiting hole is cylindrical, and the rolling element moves up and down inside the limiting hole.
3. The anti-pry push-pull lock according to claim 1, characterized in that: The push-pull lock shell is provided with long strip-shaped through holes.
4. The anti-pry push-pull lock according to claim 1, characterized in that: The push-pull lock housing comprises a bottom plate and two side plates symmetrically arranged at the upper end of the bottom plate, and the switch body and the lock hook assembly slide between the side plates.
5. The anti-pry push-pull lock according to claim 4, characterized in that: The opposite side of the side plate is provided with a positioning block which is arranged oppositely, and the positioning block is semicircular; the end of the switch body away from the lock hook assembly is provided with a barb, and the barb cooperates with the positioning block to achieve positioning.
6. The anti-pry push-pull lock according to claim 4, characterized in that: The side plate is provided with a notch, and an arc-shaped limiting arm is provided at one end of the switch body away from the lock hook assembly, and the outward end of the limiting arm always moves in the notch.
7. The anti-pry push-pull lock according to claim 1, characterized in that: The lock hook assembly includes a slider disposed on the push-pull lock housing, an adjustment block assembled and connected to the slider, and a lock hook body connected to the adjustment block; the extension portion and the slider are an integrated structure; the lock hook body is used to open or lock the anti-pry push-pull lock.
8. The anti-pry push-pull lock according to claim 7, characterized in that: The upper end surface of the sliding block is provided with a slot, and the adjusting block is locked in the slot.
9. The anti-pry push-pull lock according to claim 8, characterized in that: The locking hook assembly also includes an adjusting screw. The bottom inner side of the card slot is provided with a connecting groove with a semicircular cross-section. The bottom of the adjusting block is provided with a threaded groove adapted to the adjusting screw. The adjusting screw is arranged between the connecting groove and the threaded groove. The adjusting screw is used to lock the slider and the adjusting block.
10. The anti-pry push-pull lock according to claim 7, characterized in that: The upper end of the adjusting block is provided with an adjusting column arranged diagonally, and the locking hook body is penetrated with a connecting hole, and the adjusting column is inserted into the connecting hole to assemble and connect the adjusting block and the locking hook body.