Window limiting lock

Abstract

The utility model belongs to the technical field of window locks, and particularly relates to a window limiting lock which comprises a sliding rail provided with a plurality of limiting grooves distributed in the length direction of the sliding rail. The locking device is installed on the sliding rail in a sliding mode, and the locking device is movably connected with the limiting groove; one end of the connecting rod is rotationally connected with the locking device, and the connecting rod can rotate on the locking device in multiple directions; the connecting seat is rotationally connected with the other end of the connecting rod, and the connecting rod can rotate on the connecting seat in multiple directions; the locking device comprises a sliding seat, a limiting piece, a button and an elastic piece; the opening range of the window is adjusted by adjusting the clamping position of the locking device and the sliding rail, the situation that children fall off a building due to the fact that the window is opened too much is avoided, meanwhile, it is guaranteed that the window can be opened by a certain angle for ventilation, and it is guaranteed that use is safe and stable, operation is easy, and use is convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of window locks, and in particular to a window limit lock. Background Art

[0002] Existing window designs allow for opening in various ways, such as left and right translation or forward and backward rotation. However, the locking mechanisms of these windows typically only work when the windows are fully closed. Due to the need for indoor ventilation, many families choose to partially open their windows. However, the locking mechanism cannot effectively secure the windows in the half-open state, making it easy for the windows to shift, causing the opening angle to change. Children, in particular, may climb onto the window frame, posing a risk of falling. For this reason, some window limit locks have emerged on the market.

[0003] For example, Chinese patent CN201921021622.7 discloses a novel window lock, wherein the lock body is mounted on the inward-opening window body, and the first fixing plate and the second fixing plate are mounted on the window outer frame and the inner window, respectively. The size of the opening gap of the inner window is adjusted according to the angle between the center line connecting the center of the first fixing plate and the center of the second fixing plate and the horizontal line;

[0004] However, there are still some shortcomings. When the inner window needs to be fully opened, the first hexagonal wrench or the second hexagonal wrench needs to be used to rotate the hexagonal groove on the first threaded rod or the second threaded rod to twist the first threaded rod or the second threaded rod so that the first connecting block or the second connecting block can be pulled out from the inner side of the first fixing plate or the second fixing plate to fully open the inner window. This is cumbersome to use and inconvenient to operate.

[0005] Secondly, the patented solution cannot fix the angle of the partially opened window, causing the window to rotate within the range limited by the steel wire connection rope, posing a risk of children's hands being pinched when the window closes;

[0006] In addition, the maximum position of the partial opening of the window is the length of the steel wire connecting rope. When the steel wire connecting rope is too long, the window will open too wide, posing a risk of children falling from the building, making it unsafe to use. Summary of the Invention

[0007] The purpose of this technical solution is to provide a window limit lock, which can adjust the connection between the limit member and the limit groove by pressing a button, thereby adjusting the locking position between the locking device and the slide rail, thereby limiting the opening size of the window, and realizing full opening of the window by separating the sliding seat and the slide rail, thereby improving the problems of the existing window limit lock that is cumbersome to operate and inconvenient to use.

[0008] The purpose of this technical solution is achieved in this way:

[0009] A window limit lock, comprising:

[0010] The slide rail is provided with a plurality of limit slots distributed along its length;

[0011] a locking device, which is slidably mounted on the slide rail and movably connected to the limiting groove;

[0012] a connecting rod, one end of which is rotatably connected to the locking device, and the connecting rod can rotate in multiple directions on the locking device;

[0013] a connecting seat, which is rotatably connected to the other end of the connecting rod, and the connecting rod can rotate in multiple directions on the connecting seat;

[0014] Wherein, the locking device comprises:

[0015] A sliding seat, the lower end of which is provided with a sliding groove that slides with the slide rail;

[0016] a limiting member, which is slidably disposed in the sliding seat, and the lower end of the limiting member extends out of the sliding seat and is movably placed in the limiting groove;

[0017] a button, movably connected to the sliding seat, for driving the lower end of the limiting member to disengage from the limiting groove;

[0018] An elastic member is installed in the sliding seat and is movably connected to the limiting member, so as to enable the limiting member to have a movement tendency of extending from the lower end of the sliding seat and inserting into the limiting groove.

[0019] Preferably, a sliding opening is provided in the limiting member, a first guide surface is provided on an upper side wall of the sliding opening, the button has an insertion portion, and a second guide surface is provided on an upper end of the insertion portion;

[0020] When the insertion portion is inserted into the sliding opening, the second guide surface movably abuts against the first guide surface, and the limiting member is moved upward in the sliding seat by pressing the button, so that the lower end of the limiting member is separated from the limiting groove.

[0021] Preferably, a sliding groove is provided in the sliding seat, a through hole is provided at the bottom of the sliding groove, and an opening is provided on the side wall of the sliding groove, and the opening passes through the notch of the sliding groove; the lower end of the limiting member has a limiting block and a limiting platform;

[0022] When the limiting member slides into the sliding groove and moves downward in the sliding groove, the limiting block extends out of the lower end of the sliding seat through the through hole and is movably placed in the limiting groove, and the limiting platform movably abuts against the bottom of the sliding groove; the button is movably connected to the limiting member through the opening.

[0023] Preferably, the side wall of the sliding groove is provided with an anti-slip groove, and the side wall of the limiting member is provided with an anti-slip portion, and the anti-slip portion is slidably placed in the anti-slip groove;

[0024] When the limiting member moves upward in the sliding groove, the anti-slip portion movably abuts against the upper side wall of the anti-slip groove to limit the limiting member from being separated from the sliding groove.

[0025] Preferably, the side wall of the sliding seat has a second through hole, a sliding column is provided in the sliding seat, a sliding groove is provided in the sliding column, and an anti-slip protrusion is provided on the end side of the sliding column;

[0026] The button has an avoidance groove, the inner wall of the avoidance groove has two anti-slip protrusions, and the bottom of the avoidance groove has an insertion portion;

[0027] The button is slidably placed in the sliding seat through the second through hole, the sliding column is movably placed in the avoidance groove, and the first anti-slip protrusion is placed in the avoidance groove and movably abuts against the second anti-slip protrusion.

[0028] Preferably, a first rotating device is provided between the locking device and the connecting rod, and the first rotating device comprises:

[0029] A rotating member 1, having a hinge groove 1 at its upper end, wherein the end of the connecting rod is placed in the hinge groove 1 and is hinged to the side walls on both sides of the hinge groove 1 through a fixing member 1;

[0030] The lower end of the rotating member 1 is provided with a connecting shaft 1, and the upper end of the sliding seat is provided with a through hole 3; the lower end of the connecting shaft passes through the through hole 3 and is movably connected in the sliding seat.

[0031] Preferably, a ring groove 1 is formed at the side end of the connecting shaft 1; a through hole 4 is formed on the side wall of the sliding seat, an anti-slip block 1 is provided in the through hole 4, and a relief opening 1 is provided at the front end of the anti-slip block 1, and the relief opening 1 is engaged with the ring groove 1;

[0032] An anti-dropout hole is provided on the anti-dropout block, an anti-dropout column is provided in the sliding seat, and an end portion of the anti-dropout column is engaged with the anti-dropout hole.

[0033] Preferably, the sliding seat has:

[0034] Base 1, which has an embedding groove 1, and the lower end of the base 1 has a sliding groove, and the upper end of the base 1 has a support column and the anti-slip column 1;

[0035] An upper cover 1 is mounted on the base 1, and a lower end of the upper cover has an insert 1, the insert 1 is engaged with the insert groove 1, and two sides of the upper cover 1 are provided with the through holes 4;

[0036] When the upper cover 1 is mounted on the base 1, the front end of the anti-slip block 1 passes through the through hole 4 and is movably placed in the sliding seat, and the anti-slip column 1 is inserted into the anti-slip hole 1;

[0037] The upper end of the support column is provided with a groove, and the lower end of the connecting shaft 1 is movably placed in the groove.

[0038] Preferably, a second rotating device is provided between the connecting rod and the connecting seat, and the second rotating device comprises:

[0039] The second rotating member has a second hinge groove at its side end, and the end of the connecting rod is placed in the second hinge groove and is hinged to the side walls on both sides of the second hinge groove through the second fixing member;

[0040] a second connecting shaft, the lower end of which passes through the second rotating member and is inserted into the connecting seat;

[0041] The lower end of the second connecting shaft has a second annular groove, the side wall of the connecting seat has a fifth through hole, an anti-slip block is provided in the fifth through hole, and the front end of the second anti-slip block has a second avoidance opening, which is engaged with the second annular groove;

[0042] The second anti-dropping block is provided with a second anti-dropping hole, and the connecting seat is provided with a second anti-dropping column. The second end portion of the anti-dropping column is engaged with the second anti-dropping hole.

[0043] Preferably, the connecting seat has:

[0044] The upper cover 2 has a boss at its upper end, the side wall of the boss has the through hole 5, the boss is provided with a second embedding groove, and the bottom of the upper cover 2 has a receiving groove;

[0045] A second base is movably connected to the receiving groove, and an upper end of the second base has a second insert and the second anti-slip column;

[0046] When the second upper cover is mounted on the second base, the second embedding block is fitted into the second embedding groove, and the second anti-detachment column is inserted into the second anti-detachment hole;

[0047] The length of the second rotating member is greater than the width of the connecting seat.

[0048] Compared with the existing technology, this technical solution has the following outstanding and beneficial technical effects:

[0049] 1. This technical solution is designed to adjust the opening range of the window by adjusting the engagement position of the locking device and the slide rail, thereby preventing the window from being opened too wide and causing children to fall from the building, while ensuring that the window can be opened to a certain angle for ventilation, thereby ensuring safe and stable use; in addition, the connection position between the locking device and the slide rail can be adjusted by pressing a button to separate the limit piece and the limit groove, which is simple and convenient to operate, and the window can be fully opened after the locking device is separated from the slide rail, without the need to completely remove the window limit lock from the window, which is easy to use.

[0050] 2. The two ends of the connecting rod designed in this technical solution can be connected to the locking device and the connecting seat respectively in a multi-angle rotatable manner. On the premise of ensuring that the locking device can slide stably on the slide rail, the window limit lock can adapt to different window structures, such as outward-opening windows, inward-opening windows or sliding windows. It is flexible and convenient to use and ensures adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Figure 1 This is a structural diagram of the technical solution.

[0052] Figure 2 This is an exploded diagram of this technical solution.

[0053] Figure 3 This is a cross-sectional view of the technical solution.

[0054] Figure 4 This is a cross-sectional view of the locking device and the first rotating device of this technical solution.

[0055] Figure 5 This is a cross-sectional view of the connecting seat and the second rotating device of this technical solution.

[0056] Figure 6 This is a schematic diagram of the partial structure of the locking device of this technical solution.

[0057] Figure 7 This is one of the structural diagrams of base one of this technical solution.

[0058] Figure 8 This is the second structural diagram of the base one of this technical solution.

[0059] Figure 9 This is a structural diagram of the upper cover of this technical solution.

[0060] Figure 10 This is a structural diagram of the upper cover 2 of this technical solution.

[0061] 1. Slide rail; 11. Limiting groove; 12. Overlap; 2. Locking device; 21. Sliding seat; 211. Through hole 2; 212. Anti-slipping protrusion; 22. Base 1; 220. Embedded groove 1; 221. Sliding groove; 222. Sliding groove; 223. Through hole 1; 224. Opening; 225. Anti-slipping groove; 226. Sliding column; 227. Anti-slipping protrusion 1; 228. Support column; 2281. Groove; 229. Anti-slipping column 1; 23. Upper cover 1; 230. Embedded block 1; 231. Through hole 3; 232. Through hole 4; 24. Limiting member; 241. Sliding opening; 242. Guide surface 1; 243. Limiting block; 244. Limiting platform; 245. Anti-slipping portion; 25. Button; 251 , inserting part; 252, guiding surface two; 254, avoidance groove; 255, anti-slip protrusion two; 26, elastic member; 3, connecting rod; 4, connecting seat; 41, upper cover two; 42, through hole five; 43, boss; 44, embedding groove two; 45, accommodating groove; 46, base two; 47, anti-slip column two; 48, embedding block two; 5, first rotating device; 51, rotating part one; 52, hinge groove one; 53, connecting shaft one; 54, ring groove one; 55, anti-slip block one; 551, avoidance opening one; 552, anti-slip hole one; 6, second rotating device; 61, rotating part two; 62, hinge groove two; 63, connecting shaft two; 64, ring groove two; 65, anti-slip block two; 651, avoidance opening two; 652, anti-slip hole two. DETAILED DESCRIPTION

[0062] The specific implementation of this technical solution is further described in detail below with reference to the accompanying drawings. Figures 1-10 .

[0063] Combine Figure 1 and Figure 4 , a window limit lock, comprising:

[0064] The slide rail 1 is provided with a plurality of limiting grooves 11 distributed along its length;

[0065] A locking device 2 is slidably mounted on the slide rail 1 and movably connected to the limiting groove 11;

[0066] A connecting rod 3, one end of which is rotatably connected to the locking device 2, and the connecting rod 3 can rotate in multiple directions on the locking device 2;

[0067] A connecting seat 4 is rotatably connected to the other end of the connecting rod 3, and the connecting rod 3 can rotate in multiple directions on the connecting seat 4;

[0068] Wherein, the locking device 2 comprises:

[0069] The sliding seat 21 has a slide groove 221 at its lower end that is slidably matched with the slide rail 1. The front and rear side walls of the slide groove 221 are connected to the outside world to form a through groove. The side walls of the through groove have anti-slip bumps 212, that is, the inner walls on both sides of the notch of the slide groove 221 have anti-slip bumps 212; Figure 4 When the slide rail 1 is slid into the slide groove 221 , the edges 12 on both sides of the slide rail 1 movably abut against the upper ends of the anti-slip protrusions 212 , and the anti-slip protrusions 212 prevent the slide rail 1 from escaping from the slide groove 221 ;

[0070] The limiting member 24 is slidably disposed in the sliding seat 21, and the lower end of the limiting member 24 extends out of the sliding seat 21 and is movably disposed in the limiting groove 11;

[0071] The button 25 is movably connected to the sliding seat 21 and is used to drive the lower end of the limiting member 24 to disengage from the limiting groove 11;

[0072] The elastic member 26 is installed in the sliding seat 21 and is movably connected to the limiting member 24 so as to enable the limiting member 24 to extend from the lower end of the sliding seat 21 and be inserted into the limiting groove 11 located in the sliding groove 221 .

[0073] When the button 25 is pressed, the lower end of the limit member 24 disengages from the limit slot 11. At this time, the sliding seat 21 can slide on the slide rail 1 or disengage from the slide rail 1, thereby adjusting the opening angle of the window. When the button 25 is released, the lower end of the limit member 24 is inserted into the limit slot 11. At this time, the sliding seat 21 cannot slide on the slide rail 1, thereby limiting the opening angle of the window and preventing the window from opening too wide or closing. The limit member 24 cooperates with the limit slots 11 at different positions to achieve multi-level adjustment of the window opening size.

[0074] The bottom of the slide rail 1 and the connecting seat 4 are provided with adhesive parts for being attached to the window, that is, one of the slide rail 1 and the connecting seat 4 is attached to the fixed window frame, and the other is attached to the movable window, or the slide rail 1 and the connecting seat 4 are provided with fixing holes, through which screws or bolts are passed and fixed to the window; when in use, the slide rail 1 is installed on the fixed window frame, and the connecting seat 4 is installed on the movable window, so that the connecting rod 3 limits the opening position of the window to prevent the window from being opened too wide, or the positions of the slide rail 1 and the connecting seat 4 are swapped, so that the slide rail 1 is installed on the movable window, and the connecting seat 4 is installed on the fixed window frame;

[0075] The window limit lock of this solution is mainly applicable to windows that open inward or outward, and of course it can also be applied to windows that move horizontally.

[0076] The slide rail 1 of this design is provided with a plurality of limit slots 11 distributed in two columns, and there are two limit members 24, buttons 25 and elastic members 26, which are all symmetrically arranged on the sliding seat 21, and the limit members 24 are engaged with the limit slots 11 on the corresponding column.

[0077] The two ends of the connecting rod 3 are universally connected to the locking device 2 and the connecting seat 4 respectively, thereby preventing the locking device 2 and the connecting seat 4 from being installed in non-parallel positions, which causes the connecting rod 3 to be unable to rotate on the locking device 2 and the connecting seat 4, and ensures that the locking device 2 and the connecting seat 4 can be installed in any position and angle to achieve the effect of limiting and fixing the window opening and closing.

[0078] The elastic member 26 is a spring or a tension spring. When the elastic member 26 is a spring, the two ends of the elastic member 26 respectively abut the inner wall of the upper end of the sliding seat 21 and the upper end of the limiting member 24. The upper end of the limiting member 24 is provided with a fixing portion inserted into the elastic member 26, and the inner wall of the upper end of the sliding seat 21 has a fixing groove with an opening downward and for the upper end of the elastic member 26 to extend into; when the elastic member 26 is a tension spring, the upper end of the elastic member 26 is connected to the upper side wall of the limiting member 24, and the lower end of the elastic member 26 is connected to the inner wall of the lower end of the sliding seat 21.

[0079] Combine Figure 4 and Figure 6 The limiting member 24 is provided with a sliding opening 241, and the upper side wall of the sliding opening 241 is provided with a guide surface 1 242. The upper side wall of the sliding opening 241 is inclined toward the button 25. The button 25 has an insertion portion 251, and the upper end of the insertion portion 251 is provided with a guide surface 252. The guide surface 252 is inclined in the same direction and angle as the guide surface 1 242.

[0080] When the insertion portion 251 is inserted into the sliding opening 241, the second guide surface 252 movably abuts against the first guide surface 242, and the second guide surface 252 and the first guide surface 242 slide and fit together. By pressing the button 25, the limiting member 24 moves upward in the sliding seat 21, so that the lower end of the limiting member 24 is separated from the limiting groove 11.

[0081] Combine Figure 4 、 Figure 6 、 Figure 7 and Figure 8 A sliding groove 222 is provided in the sliding seat 21, a through hole 223 is provided at the bottom of the sliding groove 222, and an opening 224 is provided on the side wall of the sliding groove 222, and the opening 224 passes through the notch of the sliding groove 222; the lower end of the limiting member 24 has a limiting block 243 and a limiting platform 244;

[0082] When the limiting member 24 slides into the sliding groove 222 and moves downward in the sliding groove 222, the limiting block 243 extends out of the lower end of the sliding seat 21 through the through hole 1 223 and is movably placed in the limiting groove 11, and the limiting platform 244 movably abuts against the bottom of the sliding groove 222 to limit the limiting member 24 from separating from the sliding groove 222 from the through hole 1 223; the insertion portion 251 of the button 25 is movably connected to the limiting member 24 through the opening 224.

[0083] Combine Figure 6 and Figure 7 The side wall of the sliding groove 222 is provided with an anti-slip groove 225, and the side wall of the limiting member 24 is provided with an anti-slip portion 245, and the anti-slip portion 245 is slidably placed in the anti-slip groove 225; the lower end of the anti-slip portion 245 has a guide surface three inclined downward, which is used to guide the anti-slip portion 245 to slide in the anti-slip groove 225;

[0084] When the limiting member 24 moves upward in the sliding slot 222 , the anti-slip portion 245 movably abuts against the upper side wall of the anti-slip slot 225 to prevent the limiting member 24 from being detached from the upper end of the sliding slot 222 .

[0085] The side wall of the sliding seat 21 has a second through hole 211. A sliding post 226 is provided in the sliding seat 21. A sliding groove 222 is provided in the sliding post 226. An opening 224 is connected to the side wall of the sliding post 226. An anti-drop protrusion 227 is provided on the end side of the sliding post 226.

[0086] The button 25 has an escape groove 254 , the inner wall of the escape groove 254 has an anti-slip protrusion 255 , and the bottom of the escape groove 254 has an insertion portion 251 ;

[0087] The button 25 is slidably placed in the sliding seat 21 through the second through hole 211, the sliding column 226 is movably placed in the avoidance groove 254, and the anti-slip protrusion 1 227 is placed in the avoidance groove 254 and movably abuts against the anti-slip protrusion 2 255, which is used to limit the button 25 from being separated from the sliding column 226, thereby preventing the button 25 from falling off the sliding seat 21.

[0088] Combine Figures 1-4 A first rotating device 5 is provided between the locking device 2 and the connecting rod 3. The first rotating device 5 includes:

[0089] The rotating member 51 has a hinge groove 52 at its upper end. The end of the connecting rod 3 is placed in the hinge groove 52 and is hinged to the side walls on both sides of the hinge groove 52 through the fixing member 1; the fixing member 1 is a knurled pin, a latch, a bolt, or a screw.

[0090] The lower end of the rotating member 51 has a connecting shaft 53, and the upper end of the sliding seat 21 has a through hole 3 231; the lower end of the connecting shaft 53 passes through the through hole 3 231 and is movably connected in the sliding seat 21, and the lower end of the connecting shaft 53 can be installed on the sliding seat 21 by setting a clamp or a retaining spring.

[0091] Combine Figure 2-Figure 4 , a ring groove 54 is formed at the side end of the connecting shaft 53; the side wall of the sliding seat 21 has a through hole 232, and an anti-slip block 55 is provided in the through hole 232. The front end of the anti-slip block 55 has an avoidance opening 551, which is engaged with the ring groove 54. The front end of the anti-slip block 55 is inserted into the ring groove 54, and the bottom of the avoidance opening 551 abuts against the bottom of the ring groove 54;

[0092] An anti-drop hole 552 is provided on the anti-drop block 55, and an anti-drop column 229 is provided in the sliding seat 21. The end of the anti-drop column 229 is engaged with the anti-drop hole 552, thereby preventing the anti-drop block 55 from escaping from the sliding seat 21 through the fourth through hole 232.

[0093] Combine Figures 1-4 as well as Figure 6-Figure 9 , the sliding seat 21 has:

[0094] Base 1 22 has an embedding groove 1 220, and a slide groove 221 at the lower end of base 1 22, and a sliding column 226, a sliding groove 222, a support column 228 and an anti-slip column 1 229 at the upper end of base 1 22;

[0095] Upper cover 1 (23) is mounted on base 1 (22). An insert 1 (230) is formed at the lower end of upper cover 1, and insert 1 (230) is engaged with insert groove 1 (220). Four through holes 232 are formed on both sides of upper cover 1 (23). Upper cover 1 (23) also has a third through hole 231.

[0096] The base 1 22 and the upper cover 1 23 are connected by the insert 1 230 and the insert groove 1 220, and the connection between the base 1 22 and the upper cover 1 23 is further fixed by welding;

[0097] First, insert the front end of the anti-drop block 55 through the through hole 232 and movably place it in the upper cover 23 of the sliding seat 21. Then, install the upper cover 23 on the base 22. At this time, the anti-drop column 229 is inserted into the anti-drop hole 552.

[0098] Two opposite side walls of the upper cover 23 have notches, and the upper side wall of the notch and the left and right side walls cooperate with the upper end surface of the base 22 to form the second through hole 211.

[0099] The upper end of the support column 228 has a groove 2281, and the lower end of the connecting shaft 53 is movably placed in the groove 2281. The support column 228 has a plurality of reinforcing ribs.

[0100] Combine Figure 1 、 Figure 2 、 Figure 3 and Figure 5 A second rotating device 6 is provided between the connecting rod 3 and the connecting seat 4. The second rotating device 6 includes:

[0101] The second rotating member 61 has a second hinge groove 62 at its side end. The end of the connecting rod 3 is placed in the second hinge groove 62 and is hinged to the side walls on both sides of the second hinge groove 62 through the second fixing member; the second fixing member is a knurled pin, a latch, a bolt, or a screw;

[0102] The lower end of the second connecting shaft 63 passes through the second rotating member 61 and is inserted into the connecting seat 4;

[0103] The lower end of the second connecting shaft 63 has a second annular groove 64, and the side wall of the connecting seat 4 has a fifth through hole 42. A second anti-slip block 65 is provided in the fifth through hole 42. The front end of the second anti-slip block 65 has a second avoidance opening 651, which engages with the second annular groove 64. The front end of the second anti-slip block 65 is movably inserted into the second annular groove 64, and the second avoidance opening 651 abuts against the bottom of the second annular groove 64.

[0104] The second anti-dropping block 65 is provided with a second anti-dropping hole 652 , and the connecting seat 4 is provided with a second anti-dropping column 47 , and the end of the second anti-dropping column 47 is fitted with the second anti-dropping hole 652 .

[0105] Combine Figure 2 、 Figure 3 and Figure 10 , the connecting seat 4 has:

[0106] The second upper cover 41 has a boss 43 at its upper end, a through hole 42 is formed on the side wall of the boss 43, a second embedding groove 44 is provided in the boss 43, and a receiving groove 45 is formed at the bottom of the second upper cover 41;

[0107] The second base 46 is movably connected in the receiving groove 45 and fixed by welding or screw connection, and the upper end of the second base 46 has a second insert 48 and a second anti-slip column 47;

[0108] First, insert the second anti-drop block 65 into the fifth through-hole 42 of the second upper cover 41, and then install the second upper cover 41 onto the second base 46. At this time, the second anti-drop column 47 is inserted into the second anti-drop hole 652;

[0109] When the upper cover 41 is mounted on the base 46, the insert 48 fits into the groove 44, and the anti-dropping column 47 is inserted into the anti-dropping hole 652.

[0110] The length of the second rotating member 61 is greater than the width of the connecting seat 4, so that the second hinge groove 62 can be placed on the outside of the connecting seat 4, thereby enabling the connecting rod 3 to rotate toward the side end of the connecting seat 4 (combined with Figure 1 for downward rotation).

[0111] The above shows and describes the basic principles and main features of the present technical solution and the advantages of the present technical solution. Those skilled in the art should understand that the present technical solution is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present technical solution. Various changes and improvements may be made to the present technical solution without departing from the spirit and scope of the present technical solution. Such changes and improvements fall within the scope of the present technical solution for which protection is sought. The scope of protection claimed by the present technical solution is defined by the appended claims and their equivalents.

[0112] It should be noted that the structures, proportions, sizes, etc. depicted in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions for the implementation of this technical solution. Therefore, they have no substantial technical significance. Any modification of the structure, change in the proportional relationship or adjustment of the size, without affecting the efficacy and purpose that can be achieved by this technical solution, should still fall within the scope of the technical content disclosed by this technical solution. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description and are not used to limit the scope of the implementation of this technical solution. Changes or adjustments in their relative relationships, without substantially changing the technical content, should also be regarded as the scope of the implementation of this technical solution.

[0113] It should also be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or indirectly connected to the other element through an intervening element.

[0114] In addition, the descriptions of "first", "second", etc. in this application are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

Claims

1. A window limit lock, characterized in that: include: A slide rail (1) is provided with a plurality of limiting grooves (11) distributed along its length direction; A locking device (2) is slidably mounted on the slide rail (1), and the locking device (2) is movably connected to the limiting groove (11); A connecting rod (3), one end of which is rotatably connected to the locking device (2), and the connecting rod (3) can rotate in multiple directions on the locking device (2); A connecting seat (4) is rotatably connected to the other end of the connecting rod (3), and the connecting rod (3) can rotate in multiple directions on the connecting seat (4); Wherein, the locking device (2) comprises: A sliding seat (21), the lower end of which is provided with a sliding groove (221) that slides with the slide rail (1); A limiting member (24) is slidably disposed in the sliding seat (21), and a lower end of the limiting member (24) extends out of the sliding seat (21) and is movably disposed in the limiting groove (11); a button (25) movably connected to the sliding seat (21) and used for driving the lower end of the limiting member (24) to disengage from the limiting groove (11); An elastic member (26) is installed in the sliding seat (21), and the elastic member (26) is movably connected to the limiting member (24) so ​​as to enable the limiting member (24) to have a movement tendency of extending out of the lower end of the sliding seat (21) and extending into the sliding groove (221).

2. A window limit lock according to claim 1, characterized in that: The limiting member (24) is provided with a sliding opening (241), the upper side wall of the sliding opening (241) is provided with a first guide surface (242), the button (25) has an insertion portion (251), and the upper end of the insertion portion (251) is provided with a second guide surface (252); When the insertion portion (251) is inserted into the sliding opening (241), the second guide surface (252) movably abuts against the first guide surface (242), and by pressing the button (25), the limiting member (24) moves upward in the sliding seat (21), so that the lower end of the limiting member (24) is separated from the limiting groove (11).

3. A window limit lock according to claim 1 or 2, characterized in that: A sliding groove (222) is provided in the sliding seat (21), a through hole (223) is provided at the bottom of the sliding groove (222), and an opening (224) is provided on the side wall of the sliding groove (222); the lower end of the limiting member (24) has a limiting block (243) and a limiting platform (244); When the limiting member (24) is slidably placed in the sliding groove (222) and moves downward in the sliding groove (222), the limiting block (243) extends out of the lower end of the sliding seat (21) through the through hole 1 (223), and the limiting platform (244) movably abuts against the bottom of the sliding groove (222); the button (25) is movably connected to the limiting member (24) through the opening (224).

4. A window limit lock according to claim 3, characterized in that: The side wall of the sliding groove (222) is provided with an anti-slip groove (225), and the side wall of the limiting member (24) is provided with an anti-slip portion (245), and the anti-slip portion (245) is slidably placed in the anti-slip groove (225); When the limiting member (24) moves upward in the sliding groove (222), the anti-slip portion (245) movably abuts against the upper side wall of the anti-slip groove (225) to limit the limiting member (24) from escaping from the sliding groove (222).

5. The window limit lock according to claim 3, characterized in that: The side wall of the sliding seat (21) has a second through hole (211), a sliding column (226) is provided in the sliding seat (21), the sliding groove (222) is provided in the sliding column (226), the end side of the sliding column (226) has an anti-slip protrusion (227), and the opening (224) passes through the notch of the sliding groove (222); The button (25) has an avoidance groove (254), the inner wall of the groove of the avoidance groove (254) has an anti-slip protrusion (255), and the bottom of the avoidance groove (254) has an insertion portion (251); The button (25) is slidably placed in the sliding seat (21) through the second through hole (211), the sliding column (226) is movably placed in the avoidance groove (254), and the first anti-slip protrusion (227) is placed in the avoidance groove (254) and movably abuts against the second anti-slip protrusion (255).

6. A window limit lock according to claim 1, 2, 4 or 5, characterized in that: A first rotating device (5) is provided between the locking device (2) and the connecting rod (3), and the first rotating device (5) comprises: A rotating member (51) has a hinge groove (52) at its upper end, and the end of the connecting rod (3) is placed in the hinge groove (52) and is hinged to the side walls on both sides of the hinge groove (52) through a fixing member (51); The lower end of the rotating member 1 (51) has a connecting shaft 1 (53), and the upper end of the sliding seat (21) has a through hole 3 (231); the lower end of the connecting shaft 1 (53) passes through the through hole 3 (231) and is movably connected in the sliding seat (21).

7. The window limit lock according to claim 6, characterized in that: The side end of the connecting shaft (53) is provided with an annular groove (54); the side wall of the sliding seat (21) has a through hole (232), an anti-slip block (55) is provided in the through hole (232), and the front end of the anti-slip block (55) has an avoidance opening (551), and the avoidance opening (551) is engaged with the annular groove (54); The anti-slip block (55) is provided with an anti-slip hole (552), and the sliding seat (21) is provided with an anti-slip column (229), and the end of the anti-slip column (229) is fitted with the anti-slip hole (552).

8. The window limit lock according to claim 7, characterized in that: The sliding seat (21) has: A base (22) having an embedding groove (220), a slide groove (221) at the lower end of the base (22), and a support column (228) and an anti-slip column (229) at the upper end of the base (22); An upper cover (23) is mounted on the base (22), and a lower end of the upper cover (23) is provided with an insert (230), the insert (230) is fitted into the insert groove (220), and two sides of the upper cover (23) are provided with the through holes (232); When the upper cover (23) is mounted on the base (22), the front end of the anti-slip block (55) passes through the through hole (232) and is movably placed in the sliding seat (21), and the anti-slip column (229) is inserted into the anti-slip hole (552). The upper end of the support column (228) has a groove (2281), and the lower end of the connecting shaft (53) is movably placed in the groove (2281).

9. A window limit lock according to claim 1 or 2 or 4 or 5 or 7 or 8, characterized in that: A second rotating device (6) is provided between the connecting rod (3) and the connecting seat (4), and the second rotating device (6) comprises: The second rotating member (61) has a second hinge groove (62) at its side end, and the end of the connecting rod (3) is placed in the second hinge groove (62) and is hinged to the side walls on both sides of the second hinge groove (62) through the second fixing member; A second connecting shaft (63), the lower end of which passes through the second rotating member (61) and is inserted into the connecting seat (4); The lower end of the second connecting shaft (63) has a second annular groove (64), the side wall of the connecting seat (4) has a fifth through hole (42), an anti-slip block (65) is provided in the fifth through hole (42), and the front end of the second anti-slip block (65) has a second avoidance opening (651), and the second avoidance opening (651) is engaged with the second annular groove (64); The second anti-slip block (65) is provided with a second anti-slip hole (652), and the second anti-slip column (47) is provided in the connecting seat (4), and the second anti-slip column (47) is fitted with the second anti-slip hole (652).

10. The window limit lock according to claim 9, characterized in that: The connecting seat (4) has: The upper cover (41) has a boss (43) at its upper end, the side wall of the boss (43) has the through hole (42), the boss (43) is provided with a second embedding groove (44), and the bottom of the upper cover (41) has a receiving groove (45); A second base (46) is movably connected in the receiving groove (45), and the upper end of the second base (46) has a second insert (48) and the second anti-slip column (47); When the second upper cover (41) is mounted on the second base (46), the second embedded block (48) and the second embedded groove (44) are fitted together, and the second anti-slip column (47) is inserted into the second anti-slip hole (652); The length of the second rotating member (61) is greater than the width of the connecting seat (4).

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