Pull rod device for inward tilt-turn window and inward tilt-turn window

Abstract

The invention provides a pull rod device for an inward tilt-turn window and the inward tilt-turn window. The pull rod device comprises a window frame connecting assembly, a sash fixing rod, a long rod and a sliding block assembly. The sash fixing rod is provided with a sliding groove, the sliding block assembly is assembled in the sliding groove in a sliding mode, and the two ends of the long rod are hinged to the window frame connecting assembly and the sliding block assembly respectively. A plurality of bayonets are formed in the side wall of the sliding groove, and the sliding block assembly comprises a sliding block, a swing rod and a reed; an assembling groove is formed in the upper surface of the sliding block, a clamping protrusion is arranged on the swing rod, and the swing rod is arranged in the assembling groove in the mode that the clamping protrusion faces outwards. The reed is arranged between the sliding block and the swing rod, in the reverse sliding process of the sliding block assembly in the sliding groove, the reed pushes the swing rod to enable the clamping protrusion to be embedded into the bayonet, and the swing rod prevents the sliding block assembly from sliding in the sliding groove in the forward direction. The inward tilt-turn window can be positioned at a plurality of different inward tilt-turn distances, and different ventilation requirements are met.

Description

Technical Field

[0001] The invention relates to the field of door and window hardware, and more particularly to a pull rod device for an inward opening and tilting window and an inward opening and tilting window. Background Art

[0002] The inward-opening and tilting window is a window that operates the window handle to drive the corresponding movement of the hardware actuator, so that the window can be opened horizontally into the room or tilted to a certain angle into the room.

[0003] Existing inward opening and tilting windows have only one tilting distance when tilting inward, for example, generally the tilting distance is more than 100 mm (if the tilting distance is too small, effective ventilation cannot be achieved). However, in winter in the north, too large a tilting distance will make the room colder, and too large a tilting distance will also affect the opening and closing of the curtains. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a pull rod device for an inward-opening and tilting window and an inward-opening and tilting window in view of the problem that the inward-opening and tilting window has only one inward-tilting distance.

[0005] The technical solution of the present invention to solve the above technical problems is to provide a pull rod device for an inward opening and tilting window, comprising a window frame connecting assembly, a sash fixing rod, a long rod and a slider assembly;

[0006] The sash fixing rod is provided with a slide groove, and the slide groove is arranged along the length direction of the sash fixing rod; the slider assembly is slidably assembled in the slide groove of the sash fixing rod, the first end of the long rod is hinged to the window frame connecting assembly, the second end of the long rod is hinged to the slider assembly, and when the slider assembly slides forward in the slide groove, the angle between the long rod and the sash fixing rod increases, and when the slider assembly slides reversely in the slide groove, the angle between the long rod and the sash fixing rod decreases;

[0007] The side wall of the slide groove has a plurality of bayonet holes distributed along the length direction of the sash fixing rod, and the slider assembly includes a sliding block, a rocker rod and a spring leaf respectively assembled in the slide groove; the sliding block is hinged to the second end of the long rod, and an assembly groove is formed on the upper surface of the sliding block, and the assembly groove has an avoidance position on the side of the side wall where the bayonet hole is located on the slide groove; the rocker rod has a locking convexity, and the rocker rod is assembled in the assembly groove of the sliding block with the locking convexity facing outward; the spring leaf is assembled between the sliding block and the rocker rod, and during the reverse sliding process of the slider assembly in the slide groove, the spring leaf pushes the rocker rod so that the locking convexity is embedded in the bayonet hole through the avoidance position of the assembly groove, and the rocker rod prevents the slider assembly from sliding forward in the slide groove, thereby preventing the window sash from opening inwardly.

[0008] As a further improvement of the present invention, the rocker arm has a first hook portion, and the assembly groove has a second hook portion corresponding to the first hook portion, and when the first hook portion is locked with the second hook portion, the latching protrusion on the rocker arm retracts into the assembly groove, and when the first hook portion is separated from the second hook portion, the spring sheet pushes the rocker arm so that the latching protrusion passes through the avoidance position of the assembly groove and abuts against the side wall of the slide groove or is embedded in the latching groove.

[0009] As a further improvement of the present invention, the rocker arm is in the shape of a strip, the first hook portion and the latching protrusion are respectively located on both sides of the rocker arm, and when the rocker arm follows the sliding block to slide forward, the first hook portion is locked with the second hook portion, and when the rocker arm follows the sliding block to slide reversely, the first hook portion is separated from the second hook portion.

[0010] As a further improvement of the present invention, the assembly groove includes a accommodating portion adapted to the head end of the rocker arm, and when the head end of the rocker arm is embedded in the accommodating portion, the first hook portion is separated from the second hook portion, and when the head end of the rocker arm leaves the accommodating portion, the second hook portion is locked with the first hook portion.

[0011] As a further improvement of the present invention, the slide groove has a blocking portion located at the end point of the positive stroke of the rocker arm, and when the rocker arm follows the sliding block to slide to the end point of the positive stroke, the blocking portion pushes the tail end of the rocker arm, causing the rocker arm and the spring to move relative to the sliding block until the head end of the rocker arm is embedded in the accommodating portion.

[0012] As a further improvement of the present invention, a limiting block is fixed in the slide groove, the blocking portion is composed of the head end of the limiting block, and a guide groove is formed between the limiting block and a side wall of the slide groove; the sliding block has a rod-shaped guide portion corresponding to the guide groove, and during the sliding process of the sliding block, the rod-shaped guide portion slides in the guide groove.

[0013] As a further improvement of the present invention, the locking protrusion of the rocker arm includes a stop surface, the stop surface faces away from the first end of the long rod, and the bayonet prevents the slider assembly from sliding forward by cooperating with the stop surface.

[0014] As a further improvement of the present invention, the latch has a first inclined surface facing away from the stop surface, and when the latch is embedded in the bayonet and slides in the opposite direction following the sliding block, the edge of the bayonet pushes the first inclined surface to make the latch withdraw from the bayonet.

[0015] As a further improvement of the present invention, a second inclined surface is provided in the slide groove, and when the rocker arm follows the sliding block to slide to the end of the reverse stroke, the second inclined surface rocker arm causes the tail end of the rocker arm to swing in the opposite direction, and at the same time causes the rocker arm to move relative to the sliding block until the head end of the rocker arm withdraws from the accommodating portion and the first hook is locked with the second hook.

[0016] The present invention also provides an inward opening and tilting window, comprising the above-mentioned pull rod device for the inward opening and tilting window.

[0017] The present invention has the following beneficial effects: by arranging a slide groove on the sash fixing rod and arranging a plurality of bayonet holes arranged along the length direction of the sash fixing rod in the slide groove, the bayonet holes cooperate with the bayonet holes and the bayonet protrusions of the slider assembly hinged to the second end of the long rod, so that the inward-opening and inward-tilting window can be positioned at a plurality of different inward-tilting distances to meet different ventilation requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The present invention is a schematic structural diagram of a pull rod device for an inward opening and tilting window provided in an embodiment of the present invention.

[0019] Figure 2 The present invention is a schematic diagram of the assembly relationship between the sash fixing rod, the long rod and the sliding block assembly in the pull rod device for the inward opening and tilting window provided in an embodiment of the present invention.

[0020] Figure 3 The present invention is a schematic diagram of the exploded structure of a slider assembly in a pull rod device for an inward opening and tilting window provided in an embodiment of the present invention.

[0021] Figure 4 It is a schematic diagram of assembling a slider assembly to a slide groove in a pull rod device for an inward opening and tilting window provided in an embodiment of the present invention.

[0022] Figure 5 It is a schematic diagram of the changing state of the slider assembly in the pull rod device for the inward opening and tilting window provided by an embodiment of the present invention during the process of tilting and opening the window sash.

[0023] Figure 6 It is a schematic diagram of the changing state of the slider assembly in the pull rod device for the inward opening and tilting window provided by an embodiment of the present invention during the process of the window sash tilting and closing inward.

[0024] Reference Numbers

[0025] 10 Window frame connection assembly 20 Sash fixing rod

[0026] 21 Slide 211 Bayonet

[0027] 212 guide groove 213 second inclined surface

[0028] 30 Long rod 40 Slider assembly

[0029] 41 Sliding block 411 Mounting slot

[0030] 4111 Accommodating portion 412 Second hook portion

[0031] 413 rod-shaped guide portion 42 swing rod

[0032] 421 card convex 4211 backstop surface

[0033] 4212 first inclined surface 422 first hook

[0034] 43 reed 50 short rod

[0035] 60 limit block 61 blocking part DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0037] like Figure 1 , Figure 2 The figure is a schematic diagram of the structure of the rod device for the inward opening and tilting window provided by an embodiment of the present invention. The device can be assembled to the inward opening and tilting window (for example, the top of the inward opening and tilting window), and the device is respectively connected to the sash frame and the window frame, and limits the inward tilting opening distance of the window sash. The rod device for the inward opening and tilting window of this embodiment includes a window frame connecting assembly 10, a sash fixing rod 20, a long rod 30 and a slider assembly 40, wherein the window frame connecting assembly 10 is assembled to the window frame, the sash fixing rod 20 is assembled to the sash frame, the slider assembly 40 is slidably assembled to the sash fixing rod 20, and the two ends of the long rod 30 are respectively hinged to the window frame connecting assembly 10 and the slider assembly 40, and when the window sash is tilted inward, the long rod 30 rotates relative to the window frame and the sash frame respectively, and pulls the sash frame to prevent the sash frame from opening too far or falling off. The above-mentioned window frame connecting assembly 10, the sash fixing rod 20, the long rod 30 and the slider assembly 40 can all be made of hard materials such as metal. Specifically, the window frame connection assembly 10 may include a frame fixing rod fixed to the window frame, a plurality of connecting rods hinged to the frame fixing rod, etc., and the long rod 30 is hinged to one or more of the connecting rods. In actual applications, the window frame connection assembly 10 may also adopt other conventional structures in the field, which will not be repeated here.

[0038] The sash fixing rod 20 is fixed to the vertical part of the sash frame profile, for example, it can be fixed to the C-shaped groove of the window frame profile. The sash fixing rod 20 has a slide groove 21, which is arranged along the length direction of the sash fixing rod 20, and the length of the slide groove 21 is adapted to the inward opening distance of the window sash. The greater the inward opening distance of the sash frame, the longer the length of the slide groove 21. The slider assembly 40 is slidably assembled in the slide groove 21 of the sash fixing rod 20, the first end of the long rod 30 is hinged to the window frame connecting assembly 10, and the second end of the long rod 30 is hinged to the slider assembly 40 in the slide groove 21. When the window sash is pushed to be tilted inward to open, the slider assembly 40 slides forward in the slide groove 21, and the angle between the long rod 30 and the sash fixing rod 20 increases; when the window sash is pushed to be tilted inward to close, the slider assembly 40 slides reversely in the slide groove 21, and the angle between the long rod 30 and the sash fixing rod 20 decreases. That is, when the slider assembly 40 slides forward in the slide groove 21, the angle between the long rod 30 and the fan fixing rod 20 increases; when the slider assembly 40 slides backward in the slide groove 21, the angle between the long rod 30 and the fan fixing rod 20 decreases.

[0039] The side wall of the above-mentioned slide groove 21 has a plurality of bayonet holes 211, and the plurality of bayonet holes 211 are distributed along the length direction of the fan fixing rod 20. Correspondingly, the slider assembly 40 includes a sliding block 41, a swing rod 42 and a spring 43, and the above-mentioned sliding block 41, the swing rod 42 and the spring 43 are respectively assembled in the slide groove 21. The sliding block 41 is hinged to the second end of the long rod 30 (for example, by a rivet or a similar pin, etc.), and an assembly groove 411 is formed on the upper surface of the sliding block 41, and the assembly groove 411 has a clearance position on the side of the side wall where the bayonet hole 211 of the slide groove 21 is located. The swing rod 42 has a locking protrusion 421, and the swing rod 42 is installed in the assembly groove 411 of the sliding block 41, and the locking protrusion 421 faces outward (that is, toward the side wall where the bayonet hole 211 of the slide groove 21 is located). The spring 43 is installed between the sliding block 41 and the swing rod 42, that is, the spring 43 is installed in the assembly groove 411 of the sliding block 41, and the two sides of the spring 43 are respectively in contact with the sliding block 41 and the swing rod 42. When the slider assembly 40 slides in the slide groove 21 in the reverse direction (i.e., the window sash is tilted inward and closed), the spring 43 pushes the swing rod 42, so that the locking protrusion 421 on the swing rod 42 is in contact with the side wall of the slide groove 21 or embedded in the bayonet 211 through the avoidance position of the assembly groove 411, and when the locking protrusion 421 is embedded in the bayonet 211, the swing rod 42 prevents the slider assembly 40 from sliding forward in the slide groove 21, thereby preventing the window sash from tilting inward and opening, thereby achieving the inward tilting opening distance positioning of the window sash. When the latch 421 is inserted into the latch 211, the latch 211 will not prevent the swing rod 42 from sliding in the reverse direction. Accordingly, the slider assembly 40 can still slide in the reverse direction in the slide groove 21, that is, the window sash can still be tilted inwards and closed until the window sash is completely closed.

[0040] The above-mentioned pull rod device for inward opening and tilting window is provided with a slide groove 21 on the sash fixing rod 20 and a plurality of bayonet holes 211 arranged along the length direction of the sash fixing rod 20 in the slide groove 21. The bayonet holes 211 cooperate with the bayonet protrusions 421 of the slider assembly 40 hinged to the second end of the long rod 30, so that the inward opening and tilting window can be positioned at a plurality of different inward tilting distances to meet different ventilation requirements. The position and number of the bayonet holes 211 on the side wall of the slide groove 21 can be adjusted according to the inward tilting opening angle of the window sash.

[0041] like Figure 2 As shown, similar to the existing pull rod device, the pull rod device for the inward opening and tilting window may also include a short rod 50, the first end of which is hinged to the long rod 30 (the hinge point may be located at the middle of the length direction of the long rod 30), and the second end of the short rod 50 may be hinged to the sash fixing rod 20. When the window sash is tilted inwardly, the short rod 50 is stacked between the long rod 30 and the sash fixing rod 20; when the window sash is tilted inwardly, the short rod 50 forms a certain angle with the long rod 30 and the sash fixing rod 20 respectively. The short rod 50 can enhance the stability and structural strength of the inward tilting opening of the window sash.

[0042] like Figure 3 As shown, in one embodiment of the present invention, the swing rod 42 has a first hook 422, and correspondingly, the assembly groove 411 has a second hook 412, and the shape and position of the second hook 412 correspond to the shape and position of the first hook 422. When the first hook 422 and the second hook 412 are locked, the locking protrusion 421 on the swing rod 42 is retracted into the assembly groove 411; when the first hook 422 and the second hook 412 are separated, the spring sheet 43 pushes the swing rod 42 so that the locking protrusion 421 protrudes from the side of the sliding block 41 through the clearance position of the assembly groove 411.

[0043] Moreover, the swing rod 42 is in a strip shape, and the first hook 422 and the locking protrusion 421 are respectively located on both sides of the swing rod 42. In this way, when the slider assembly 40 slides forward, the first hook 422 and the second hook 412 can be locked, so that the locking protrusion 421 can be retracted into the assembly groove 411 and cannot be inserted into the bayonet 211 of the side wall of the slide groove 21, thereby ensuring smooth inward tilting and opening of the window sash; and when the slider assembly 40 slides backward, the first hook 422 and the second hook 412 can be separated, so that the locking protrusion 421 protrudes out of the assembly groove 411, and when it passes through the bayonet 211 of the side wall of the slide groove 21, it can be inserted into the bayonet 211, thereby achieving the inward tilting and opening positioning of the window sash.

[0044] In one embodiment of the present invention, the head end and the tail end of the swing rod 42 are not on a straight line parallel to the length direction of the fan fixing rod 20. For example, the swing rod 42 may include a first straight line segment and a second straight line segment connected (the first straight line segment and the second straight line segment may be integrated), and the angle between the first straight line segment and the second straight line segment is less than 180° and greater than 150°. When the swing rod 42 is assembled to the sliding block 41, the first straight line segment is inclined in a direction away from the protrusion 421. The first hook 422 is connected to the second straight line segment. The spring 43 abuts against the first straight line segment (the tail end of the spring 43 may abut against the back of the first hook 422), and the surface where the first straight line segment abuts against the spring 43 is not parallel to the length direction of the fan fixing rod 20. For example, the angle between the abutting surface and the length direction of the fan fixing rod 20 is 10-40°, so that the spring 43 can slide along the length direction of the fan fixing rod 20 synchronously with the swing rod. The latching protrusion 421 is located at the intersection of the first straight line segment and the second straight line segment, so as to prevent the slider assembly 40 from sliding in the reverse direction when the latching protrusion 421 is inserted into the latching slot 211 .

[0045] Furthermore, during the movement, the swing rod 42 not only moves along the length direction of the fan fixing rod 20, but also at least a part thereof moves perpendicularly to the length direction of the fan fixing rod 20. Specifically, when the swing rod 42 moves following the sliding block 41 (i.e., the swing rod 42 is stationary relative to the sliding block 41), its moving direction is the length direction of the fan fixing rod 20; when the swing rod 42 slides relative to the sliding block 41, its tail end (e.g., the free end of the second straight segment) moves perpendicularly to the length direction of the fan fixing rod 20, i.e., the swing rod 42 has a "swinging" action. During the "swinging" process of the swing rod 42, the locking protrusion 421 on the swing rod 42 can protrude from the side of the sliding block 41 or retract into the side of the sliding block 41, and at the same time, the first hook 422 will also swing and lock or stagger with the second hook 412.

[0046] like Figure 3 As shown, in one embodiment of the present invention, the assembly groove 411 on the sliding block 41 includes a receiving portion 4111 adapted to the head end of the swing rod 42, and when the head end of the swing rod 42 is embedded in the receiving portion 4111, the first hook portion 422 is separated from the second hook portion 412, and when the head end of the swing rod 42 leaves the receiving portion 4111, the second hook portion 412 is locked with the first hook portion 422. For example, when the first hook portion 422 is oriented toward the positive sliding direction (i.e., the sliding direction of the slider assembly 40) Figure 4 The second hook portion 412 moves in the reverse sliding direction of the slider assembly 40 (i.e. Figure 4 ), the accommodating portion 4111 moves in the reverse sliding direction of the slider assembly 40 (i.e. Figure 4 The left side of the assembly groove 411 protrudes from the main body.

[0047] like Figure 4As shown, in one embodiment of the present invention, the slide slot 21 has a blocking portion 61 located at the end of the positive stroke of the swing rod 42, and when the swing rod 42 follows the sliding block 41 to slide to the end of the positive stroke (i.e., the tail end of the swing rod 42 abuts against the blocking portion 61), the blocking portion 61 prevents the swing rod 42 from continuing to move (at this time, the sliding block 41 continues to move), so that the swing rod 42 and the spring 43 move relative to the sliding block 41 until the head end of the swing rod 42 is embedded in the accommodating portion 4111, at which time, the first hook 422 is separated from the second hook 412, and the spring 43 pushes the swing rod 42, so that the tail end of the swing rod 42 moves toward the side wall where the bayonet 211 is located, while the head end of the swing rod 42 will not move toward the side wall where the bayonet 211 is located due to the limitation of the accommodating portion 4111. Through the cooperation of the blocking portion 61 and the spring 43, the swing rod 42 can swing at the end of its positive stroke, and the cam 421 protrudes from the side of the sliding block 41.

[0048] In particular, the head end of the swing rod 42 may have an arc surface, so as to facilitate the swing of the tail end thereof.

[0049] Combination Figure 2 , Figure 4 As shown, in one embodiment of the present invention, a limit block 60 is fixed in the slide groove 21, the blocking portion 61 is composed of the head end of the limit block 60, and a guide groove 212 is formed between the limit block 60 and a side wall of the slide groove 21 (for example, the side wall facing the bayonet 211). Correspondingly, the sliding block 41 has a rod-shaped guide portion 413 corresponding to the guide groove 212, and during the sliding process of the sliding block 41, the rod-shaped guide portion 413 slides in the guide groove 212. The cooperation between the rod-shaped guide portion 413 and the guide groove 212 can improve the sliding stability of the sliding block 41. In practical applications, the above-mentioned limit block 60 can also be integrated with the slide groove 21 (that is, integrated with the fan fixing rod 20). Of course, for the convenience of processing, the limit block 60 is preferably separated from the fan fixing rod 20 and fixed in the slide groove 21 by screws or the like. In particular, a convex circle is formed at the rear end of the rod-shaped guide portion 413, and the size of the convex circle is slightly larger than the other parts of the rod-shaped guide portion 413. Correspondingly, the shape and size of the rear end of the guide groove 212 are adapted to the shape and size of the convex circle, so that when the convex circle slides to the rear end of the guide groove 212, it can remain stable to a certain extent, so that the inward tilt distance of the window sash remains relatively stable.

[0050] Combination Figure 3 , Figure 4As shown, in one embodiment of the present invention, the locking protrusion 421 of the swing rod 42 includes a stop surface 4211, which faces away from the first end of the long rod 30 (i.e., toward the positive sliding direction of the slider assembly 40), and when the locking protrusion 421 is embedded in the bayonet 211, the bayonet 211 prevents the slider assembly 40 from sliding forward by cooperating with the stop surface 4211. Specifically, the bayonet 211 includes two side walls that are respectively perpendicular to the length direction of the fan fixing rod 20, and the stop surface 4211 is also perpendicular to the length direction of the fan fixing rod 20, so that when the stop surface 4211 abuts against the side wall of the bayonet 211, the swing rod 42 cannot slide forward, and then the sliding block 41 cannot slide forward. Of course, in actual applications, other structures can also be used to prevent the swing rod 42 from sliding forward when the locking protrusion 421 is embedded in the bayonet 211.

[0051] In particular, the above-mentioned locking protrusion 421 also has a first inclined surface 4212 facing away from the stop surface 4211, and when the locking protrusion 421 is inserted into the bayonet 211 and slides in the opposite direction following the sliding block 41, the edge of the bayonet 211 pushes the first inclined surface 4212, so that the swing rod 42 moves in the direction facing away from the bayonet 211 (while compressing the spring sheet 43), thereby making the locking protrusion 421 withdraw from the bayonet 211. Of course, in actual applications, an inclined surface can also be provided on the bayonet 211 to push the swing rod 42, but this may cause the bayonet 211 to be too deep.

[0052] Correspondingly, a second inclined surface 213 is provided in the slide groove 21, and the second inclined surface 213 can be specifically located on the side wall where the latch 211 is located in the slide groove 21, and when the rocker arm 42 follows the sliding block 41 to slide to the end of the reverse stroke, the second inclined surface 213 pushes the rocker arm 42 to prevent the rocker arm 42 from continuing to move along the length direction of the fan fixing rod 20 (while the sliding block 41 continues to move along the length direction of the fan fixing rod 20), thereby causing the rocker arm 42 to move relative to the sliding block 41 (including along the length direction of the fan fixing rod 20 and perpendicular to the length direction of the fan fixing rod 20) until the head end of the rocker arm 42 withdraws from the accommodating portion 4111, and at the same time, the tail end of the rocker arm 42 swings in the opposite direction (i.e., swings in the direction away from the second inclined surface 213), thereby locking the second hook portion 412 with the first hook portion 422.

[0053] like Figure 5 As shown, when the window sash is tilted inwardly and closed, the head end of the swing rod 42 is not embedded in the receiving portion 4111 of the assembly groove 411, and accordingly, the first hook portion 422 of the swing rod 42 is locked with the second hook portion 412 of the sliding block 41, the spring leaf 43 is pushed by the swing rod 42 to be in a compressed state, and the locking protrusion 421 of the swing rod 42 is retracted into the edge of the sliding block 41; as the window sash is tilted inwardly and opened, the sliding block 41, the swing rod 42 and the spring leaf 43 slide forward in the sliding groove 21 (for example, Figure 5As shown in the figure, the cam 421 is retracted into the edge of the sliding block 41, and therefore the swing rod 42 will not be embedded in the snap-on notch 211 of the side wall of the slide groove 21 during the sliding process; when the swing rod 42 slides to the tail end and abuts against the blocking portion 61, the swing rod 42 can no longer move to the right, while the sliding block 41 can continue to move to the right. During the rightward movement of the sliding block 41, the head end of the swing rod 42 is embedded in the accommodating portion 4111 of the assembly groove 411, and the window sash reaches the maximum inward opening distance, and at the same time, the first hook portion 422 is separated from the second hook portion 412.

[0054] like Figure 6 As shown, when the window sash is closed from the maximum inward opening distance, the sliding block 41, the swing rod 42 and the spring 43 slide in the opposite direction in the sliding groove 21 (for example Figure 6 The spring sheet 43 pushes the swing rod 42 to make the protrusion 421 protrude from the edge of the sliding block 41 and abut against the side wall of the sliding groove 21, and at the same time, the first hook 422 and the second hook 412 are staggered; because the protrusion 421 abuts against the side wall of the sliding groove 21, when the protrusion 421 passes through the bayonet 211, the swing rod 42 is pushed by the spring sheet 43 to make the protrusion 421 further snap into the bayonet 211. At this time, due to the existence of the stop surface 4211 on the protrusion 421, the swing rod 42 cannot slide to the right any further, and the sliding block 41 cannot slide to the right either, that is, the inward tilt distance positioning of the window sash is achieved; and when the window sash continues to tilt inward and close. When closing, the edge of the bayonet 211 pushes the first inclined surface 4212 of the locking protrusion 421, so that the locking protrusion 421 is separated from the bayonet 211, and the sliding block 41, the rocker rod 42 and the spring leaf 43 continue to slide in the opposite direction; when the second inclined surface 213 of the slide groove 21 abuts against the side surface of the rocker rod 42 (for example, the side wall of the first straight segment), the second inclined surface 213 prevents the rocker rod 42 from continuing to move left, while the sliding block 41 continues to move left, and the head end of the rocker rod 42 leaves the accommodating portion 4111. At the same time, the second inclined surface 213 also pushes the rocker rod 42 to swing, and the first hook 422 and the second hook 412 are locked, the locking protrusion 421 retracts into the edge of the sliding block 41, and the window sash is closed.

[0055] The present invention also provides an inward opening and tilting window, comprising the above-mentioned pull rod device for the inward opening and tilting window.

[0056] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A pull rod device for an inward opening and tilting window, characterized in that: It includes a window frame connection assembly, a sash fixing rod, a long rod and a slider assembly; The sash fixing rod is provided with a slide groove, and the slide groove is arranged along the length direction of the sash fixing rod; the slider assembly is slidably assembled in the slide groove of the sash fixing rod, the first end of the long rod is hinged to the window frame connecting assembly, the second end of the long rod is hinged to the slider assembly, and when the slider assembly slides forward in the slide groove, the angle between the long rod and the sash fixing rod increases, and when the slider assembly slides reversely in the slide groove, the angle between the long rod and the sash fixing rod decreases; The side wall of the slide groove has a plurality of bayonet holes distributed along the length direction of the sash fixing rod, and the slider assembly includes a sliding block, a rocker rod and a spring leaf respectively assembled in the slide groove; the sliding block is hinged to the second end of the long rod, and an assembly groove is formed on the upper surface of the sliding block, and the assembly groove has an avoidance position on the side of the side wall where the bayonet hole is located on the slide groove; the rocker rod has a locking convexity, and the rocker rod is assembled in the assembly groove of the sliding block with the locking convexity facing outward; the spring leaf is assembled between the sliding block and the rocker rod, and during the reverse sliding process of the slider assembly in the slide groove, the spring leaf pushes the rocker rod so that the locking convexity is embedded in the bayonet hole through the avoidance position of the assembly groove, and the rocker rod prevents the slider assembly from sliding forward in the slide groove, thereby preventing the window sash from opening inwardly.

2. The pull rod device for an inward opening and tilting window according to claim 1, characterized in that: The swing rod has a first hook portion, and the assembly groove has a second hook portion corresponding to the first hook portion. When the first hook portion is locked with the second hook portion, the latching protrusion on the swing rod is retracted into the assembly groove. When the first hook portion is separated from the second hook portion, the spring sheet pushes the swing rod so that the latching protrusion abuts against the side wall of the slide groove through the avoidance position of the assembly groove or is embedded in the latching groove.

3. The pull rod device for an inward opening and tilting window according to claim 2, characterized in that: The swing rod is in the shape of a strip, the first hook and the latch are respectively located on both sides of the swing rod, and when the swing rod follows the sliding block to slide forward, the first hook is locked with the second hook, and when the swing rod follows the sliding block to slide reversely, the first hook is separated from the second hook.

4. The pull rod device for an inward opening and tilting window according to claim 3, characterized in that: The assembly groove includes a receiving portion adapted to the head end of the swing rod, and when the head end of the swing rod is embedded in the receiving portion, the first hook portion is separated from the second hook portion, and when the head end of the swing rod leaves the receiving portion, the second hook portion is locked with the first hook portion.

5. The pull rod device for an inward opening and tilting window according to claim 4, characterized in that: The slide groove has a blocking portion located at the end point of the positive stroke of the rocker rod, and when the rocker rod follows the sliding block to slide to the end point of the positive stroke, the blocking portion pushes the tail end of the rocker rod, causing the rocker rod and the spring leaf to move relative to the sliding block until the head end of the rocker rod is embedded in the accommodating portion.

6. The pull rod device for an inward opening and tilting window according to claim 5, characterized in that: A limiting block is fixed in the slide groove, the blocking portion is composed of the head end of the limiting block, and a guide groove is formed between the limiting block and a side wall of the slide groove; the sliding block is provided with a rod-shaped guide portion corresponding to the guide groove, and during the sliding process of the sliding block, the rod-shaped guide portion slides in the guide groove.

7. The pull rod device for an inward opening and tilting window according to claim 4, characterized in that: The locking protrusion of the swing rod includes a stop surface, the stop surface is facing away from the first end of the long rod, and the bayonet prevents the slider assembly from sliding forward by cooperating with the stop surface.

8. The pull rod device for an inward opening and tilting window according to claim 7, characterized in that: The latch protrusion has a first inclined surface facing away from the stop surface, and when the latch protrusion is embedded in the bayonet and slides in the opposite direction following the sliding block, the edge of the bayonet pushes the first inclined surface to make the latch protrusion withdraw from the bayonet.

9. The pull rod device for an inward opening and tilting window according to claim 8, characterized in that: The slide groove has a second inclined surface, and when the swing rod follows the sliding block to slide to the end of the reverse stroke, the second inclined swing rod causes the tail end of the swing rod to swing in the reverse direction, and at the same time causes the swing rod to move relative to the sliding block until the head end of the swing rod withdraws from the accommodating portion and the first hook is locked with the second hook.

10. An inward opening and tilting window, characterized in that: The invention comprises a pull rod device for an inward opening and tilting window as claimed in any one of claims 1 to 9.

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