Pull rod device for in-swinging and in-retracting window and in-swinging and in-retracting window

Abstract

The application provides a pull rod device for an in-swinging and in-turning window and an in-swinging and in-turning 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 slidingly assembled in the sliding groove, and the long rod is hingedly connected with the window frame connecting assembly and the sliding block assembly at two ends. The side wall of the sliding groove is provided with a plurality of clamping openings, and the sliding block assembly comprises a sliding block, a swing rod and a spring piece. The upper surface of the sliding block is formed with an assembly groove, the swing rod is provided with a clamping convex, and the swing rod is outwardly assembled in the assembly groove. The spring piece is assembled between the sliding block and the swing rod, and during reverse sliding of the sliding block assembly in the sliding groove, the spring piece pushes the swing rod to make the clamping convex embedded in the clamping opening, and the swing rod prevents the sliding block assembly from forward sliding in the sliding groove. The application enables the in-swinging and in-turning window to be positioned at different in-turning distances, and meets different ventilation requirements.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of door and window hardware, and more particularly to a pull rod device for an inward and inward-outward opening window and the inward and inward-outward opening window. BACKGROUND

[0002] The inward and inward-outward opening window is opened by operating the handle of the window sash to drive the corresponding movement of the hardware transmission device, so that the window sash can be opened inwardly or inwardly and outwardly.

[0003] The existing inward and inward-outward opening window has only one distance when it is inwardly opened, for example, the general inward opening distance is more than 100mm (if the inward opening distance is too small, it cannot effectively ventilate). However, when it is winter in the north, the too large inward opening distance will cause the room to be relatively cold, and the too large inward opening distance will also affect the opening and closing of the curtain. SUMMARY

[0004] The technical problem to be solved by the present application is to provide a pull rod device for an inward and inward-outward opening window and the inward and inward-outward opening window to solve the problem that the above-mentioned inward and inward-outward opening window has only one inward opening distance.

[0005] The technical solution for solving the above-mentioned technical problem is to provide a pull rod device for an inward and inward-outward opening window, which comprises a window frame connecting assembly, a sash fixing rod, a long rod and a sliding block assembly.

[0006] The sash fixing rod has a sliding groove, and the sliding groove is arranged along the length direction of the sash fixing rod; the sliding block assembly is slidingly assembled in the sliding groove of the sash fixing rod, the first end of the long rod is hingedly connected with the window frame connecting assembly, the second end of the long rod is hingedly connected with the sliding block assembly, and when the sliding block assembly slides forward in the sliding groove, the included angle between the long rod and the sash fixing rod increases, and when the sliding block assembly slides reversely in the sliding groove, the included angle between the long rod and the sash fixing rod decreases.

[0007] The side wall of the sliding groove has a plurality of clamping openings distributed along the length direction of the sash fixing rod, and the sliding block assembly comprises a sliding block, a swing rod and a spring leaf respectively assembled in the sliding groove; the sliding block is hingedly connected with the second end of the long rod, the upper surface of the sliding block is formed with an assembly groove, and the assembly groove has a clearance on the side wall of the sliding groove where the clamping opening is located; the swing rod has a clamping protrusion, and the swing rod is arranged in the assembly groove of the sliding block with the clamping protrusion outward; the spring leaf is arranged between the sliding block and the swing rod, and during the reverse sliding of the sliding block assembly in the sliding groove, the spring leaf pushes the swing rod to make the clamping protrusion embedded in the clamping opening through the clearance of the assembly groove, and the swing rod prevents the sliding block assembly from sliding forward in the sliding groove, thereby preventing the window sash from being opened inwardly.

[0008] As a further improvement of the present application, the swing lever has a first hook portion, the assembly slot 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 clamping protrusion on the swing lever is retracted into the assembly slot, and when the first hook portion is separated from the second hook portion, the spring pushes the swing lever to make the clamping protrusion abut against or be embedded into the clamping slot through the clearance of the assembly slot.

[0009] As a further improvement of the present application, the swing lever is in a strip shape, the first hook portion and the clamping protrusion are respectively located on two sides of the swing lever, and when the swing lever follows the sliding block to slide forward, the first hook portion is locked with the second hook portion, and when the swing lever 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 application, the assembly slot comprises a receiving portion corresponding to the leading end of the swing lever, and when the leading end of the swing lever is embedded into the receiving portion, the first hook portion is separated from the second hook portion, and when the leading end of the swing lever is separated from the receiving portion, the second hook portion is locked with the first hook portion.

[0011] As a further improvement of the present application, the sliding slot has a blocking portion at the end point of the forward stroke of the swing lever, and when the swing lever follows the sliding block to slide to the end point of the forward stroke, the blocking portion pushes the trailing end of the swing lever to make the swing lever and the spring move relative to the sliding block until the leading end of the swing lever is embedded into the receiving portion.

[0012] As a further improvement of the present application, the sliding slot is fixed with a limiting block, the blocking portion is formed by the leading end of the limiting block, and a guide slot is formed between the limiting block and one side wall of the sliding slot; the sliding block has a rod-shaped guide portion corresponding to the guide slot, and during the sliding of the sliding block, the rod-shaped guide portion slides in the guide slot.

[0013] As a further improvement of the present application, the clamping protrusion of the swing lever comprises a retreat-preventing surface, the retreat-preventing surface faces away from the first end of the long lever, and the clamping slot prevents the sliding block assembly from sliding forward by cooperating with the retreat-preventing surface.

[0014] As a further improvement of the present application, the clamping protrusion has a first inclined surface facing away from the retreat-preventing surface, and when the clamping protrusion is embedded into the clamping slot and follows the sliding block to slide reversely, the edge of the clamping slot pushes the first inclined surface to make the clamping protrusion exit the clamping slot.

[0015] As a further improvement of the present application, the sliding slot has a second inclined surface, and when the swing lever follows the sliding block to slide to the end point of the reverse stroke, the second inclined surface swings the swing lever to make the trailing end of the swing lever swing reversely, and at the same time, the swing lever moves relative to the sliding block until the leading end of the swing lever exits the receiving portion and the first hook portion is locked with the second hook portion.

[0016] The present application also provides an inward opening and tilting window comprising the inward opening and tilting window pull rod device as described above.

[0017] The present application has the following beneficial effects: by setting the sliding groove on the fan fixing rod and setting multiple clamping holes arranged along the length direction of the fan fixing rod in the sliding groove, the inward opening and tilting window can be positioned at multiple different tilting distances by the cooperation of the clamping holes and the clamping convex of the sliding block assembly hinged with the second end of the long rod, so as to meet different ventilation requirements. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a structural schematic diagram of the inward opening and tilting window pull rod device provided by the embodiment of the present application.

[0019] Figure 2 is a schematic diagram of the assembly relationship of the fan fixing rod, the long rod and the sliding block assembly in the inward opening and tilting window pull rod device provided by the embodiment of the present application.

[0020] Figure 3 is an exploded structural schematic diagram of the sliding block assembly in the inward opening and tilting window pull rod device provided by the embodiment of the present application.

[0021] Figure 4 is a schematic diagram of the assembly of the sliding block assembly to the sliding groove in the inward opening and tilting window pull rod device provided by the embodiment of the present application.

[0022] Figure 5 is a schematic diagram of the changing state of the sliding block assembly in the inward opening and tilting window pull rod device provided by the embodiment of the present application in the process of opening the window fan inwardly.

[0023] Figure 6 is a schematic diagram of the changing state of the sliding block assembly in the inward opening and tilting window pull rod device provided by the embodiment of the present application in the process of closing the window fan inwardly.

[0024] REFERENCE NUMERALS

[0025] 10 window frame connecting assembly 20 fan fixing rod

[0026] 21 sliding groove 211 clamping hole

[0027] 212 guide groove 213 second inclined surface

[0028] 30 long rod 40 sliding block assembly

[0029] 41 sliding block 411 assembly groove

[0030] 4111 accommodating part 412 second hook part

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

[0032] 421 card convex 4211 stop surface

[0033] 4212 first inclined surface 422 first hook portion

[0034] 43 leaf 50 short rod

[0035] 60 limit block 61 blocking portion DETAILED DESCRIPTION

[0036] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application, and are not used to limit the present application.

[0037] As shown in Figure 1 , Figure 2 , it is a structural schematic diagram of the pull rod device for the inward opening and inward tilting window provided by the embodiment of the present application. The device can be assembled to the inward opening and inward tilting window (for example, the top of the inward opening and inward tilting window), and the device is connected with the sash frame and the window frame respectively, and limits the opening distance of the inward tilting of the window sash. The pull rod device for the inward opening and inward tilting window of the embodiment includes a window frame connecting assembly 10, a sash fixing rod 20, a long rod 30 and a sliding block 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 sliding block assembly 40 is slidingly assembled to the sash fixing rod 20, and the two ends of the long rod 30 are hingedly connected with the window frame connecting assembly 10 and the sliding block assembly 40 respectively, and when the window sash is opened inwardly and tilted, the long rod 30 rotates relative to the window frame and the sash frame respectively, and pulls the sash frame, so as to avoid that the opening distance of the sash frame is too large or falls off. The above-mentioned window frame connecting assembly 10, sash fixing rod 20, long rod 30 and sliding block assembly 40 can be processed by hard materials such as metal. Specifically, the window frame connecting assembly 10 can include a frame fixing rod fixed to the window frame, a plurality of connecting rods hingedly connected with the frame fixing rod, etc., and the long rod 30 is hingedly connected with one or more connecting rods. In actual application, the window frame connecting assembly 10 can also adopt other conventional structures in the art, which will not be described here.

[0038] The sash fixed bar 20 is fixed to the vertical part of the sash frame profile, for example, to the C-shaped groove of the window frame profile. The sash fixed bar 20 has a sliding groove 21 arranged along the length direction of the sash fixed bar 20, and the length of the sliding groove 21 is matched with the inward opening distance of the sash, that is, the greater the inward opening distance of the sash, the longer the length of the sliding groove 21. The sliding block assembly 40 is slidingly assembled in the sliding groove 21 of the sash fixed bar 20, the first end of the long rod 30 is hingedly connected with the window frame connecting assembly 10, and the second end of the long rod 30 is hingedly connected with the sliding block assembly 40 in the sliding groove 21. When the sash is pushed to open inward, the sliding block assembly 40 slides forward in the sliding groove 21, and at the same time, the included angle between the long rod 30 and the sash fixed bar 20 increases; when the sash is pushed to close inward, the sliding block assembly 40 slides reversely in the sliding groove 21, and at the same time, the included angle between the long rod 30 and the sash fixed bar 20 decreases. That is, when the sliding block assembly 40 slides forward in the sliding groove 21, the included angle between the long rod 30 and the sash fixed bar 20 increases; when the sliding block assembly 40 slides reversely in the sliding groove 21, the included angle between the long rod 30 and the sash fixed bar 20 decreases.

[0039] The side wall of the sliding groove 21 has a plurality of clamping holes 211, and the plurality of clamping holes 211 are distributed along the length direction of the sash fixed bar 20. Correspondingly, the sliding block assembly 40 includes a sliding block 41, a swing rod 42 and a spring piece 43, and the sliding block 41, the swing rod 42 and the spring piece 43 are respectively assembled in the sliding groove 21. The sliding block 41 is hingedly connected with the second end of the long rod 30 (for example, through a rivet or the like), the upper surface of the sliding block 41 is formed with an assembly groove 411, and the assembly groove 411 has a clearance towards the side wall of the sliding groove 21 where the clamping holes 211 are located. The swing rod 42 has a clamping protrusion 421, the swing rod 42 is arranged in the assembly groove 411 of the sliding block 41, and the clamping protrusion 421 is outward (that is, towards the side wall of the sliding groove 21 where the clamping holes 211 are located). The spring piece 43 is arranged between the sliding block 41 and the swing rod 42, that is, the spring piece 43 is arranged in the assembly groove 411 of the sliding block 41, and the two sides of the spring piece 43 are respectively in abutment with the sliding block 41 and the swing rod 42. During the reverse sliding (that is, the inward closing) of the sliding block assembly 40 in the sliding groove 21, the spring piece 43 pushes the swing rod 42, so that the clamping protrusion 421 on the swing rod 42 abuts or is embedded in the clamping holes 211 through the clearance of the assembly groove 411, and when the clamping protrusion 421 is embedded in the clamping holes 211, the swing rod 42 is prevented from sliding forward in the sliding groove 21 by the swing rod 42, thereby preventing the sash from being opened inward, so as to realize the inward opening distance positioning of the sash. And when the clamping protrusion 421 is embedded in the clamping holes 211, the clamping holes 211 do not prevent the swing rod 42 from sliding reversely, and correspondingly, the sliding block assembly 40 can still slide reversely in the sliding groove 21, that is, the sash can still be closed inward until the sash is completely closed.

[0040] The pull rod device for the inward opening and inward tilting window can be positioned at different inward tilting distances to meet different ventilation requirements by setting the sliding groove 21 on the sash fixed rod 20, setting the plurality of clamping holes 211 arranged along the length direction of the sash fixed rod 20 in the sliding groove 21, and cooperating the clamping holes 211 with the clamping protrusions 421 of the sliding block assembly 40 hinged with the second end of the long rod 30. The positions and number of the clamping holes 211 on the side wall of the sliding groove 21 can be adjusted according to the angle of the inward tilting opening of the window sash.

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

[0042] As shown in Figure 3 In an embodiment of the present application, the swing rod 42 has a first hook portion 422, and correspondingly, the assembly groove 411 has a second hook portion 412, and the shape and position of the second hook portion 412 correspond to the shape and position of the first hook portion 422, respectively. When the first hook portion 422 is locked with the second hook portion 412, the clamping protrusion 421 on the swing rod 42 is retracted into the assembly groove 411; when the first hook portion 422 is separated from the second hook portion 412, the spring piece 43 pushes the swing rod 42 to make the clamping protrusion 421 protrude from the side of the sliding block 41 through the avoidance position of the assembly groove 411.

[0043] Moreover, the swing rod 42 is in a strip shape, and the first hook portion 422 and the clamping protrusion 421 are located at two sides of the swing rod 42, respectively. In this way, when the sliding block assembly 40 slides forward, the first hook portion 422 and the second hook portion 412 can be locked, and then the clamping protrusion 421 is retracted into the assembly groove 411 and cannot be embedded into the clamping holes 211 on the side wall of the sliding groove 21, so that the inward tilting opening of the window sash is smooth; when the sliding block assembly 40 slides reversely, the first hook portion 422 and the second hook portion 412 can be separated, and then the clamping protrusion 421 protrudes out of the assembly groove 411 and is embedded into the clamping holes 211 on the side wall of the sliding groove 21 when passing through the clamping holes 211, so that the inward tilting opening of the window sash is positioned.

[0044] In one embodiment of the present application, the first end and the second 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 can include a first straight segment and a second straight segment connected together (the first straight segment and the second straight segment can be integrated), and the included angle between the first straight segment and the second straight segment is less than 180° and greater than 150°. When the swing rod 42 is assembled to the sliding block 41, the first straight segment is inclined away from the clamping protrusion 421. The first hook portion 422 is connected to the second straight segment. The reed 43 abuts against the first straight segment (the second end of the reed 43 can abut against the back of the first hook portion 422), and the surface of the first straight segment abutting against the reed 43 is not parallel to the length direction of the fan fixing rod 20. For example, the included angle between the abutting surface and the length direction of the fan fixing rod 20 is 10-40°, so that the reed 43 can slide along the length direction of the fan fixing rod 20 synchronously with the swing rod. The clamping protrusion 421 is located at the intersection of the first straight segment and the second straight segment, so as to prevent the sliding block assembly 40 from sliding reversely when the clamping protrusion 421 is embedded into the clamping opening 211.

[0045] During the movement of the swing rod 42, at least a part of the swing rod 42 moves not only along the length direction of the fan fixing rod 20, but also moves perpendicularly to the length direction of the fan fixing rod 20. Specifically, when the swing rod 42 moves along with the sliding block 41 (i.e., the swing rod 42 is stationary relative to the sliding block 41), the movement direction of the swing rod 42 is the length direction of the fan fixing rod 20; when the swing rod 42 slides relative to the sliding block 41, the movement direction of the second end (e.g., the free end of the second straight segment) of the swing rod 42 is perpendicular to the length direction of the fan fixing rod 20, i.e., the swing rod 42 has a "swing" action. During the "swing" of the swing rod 42, the clamping protrusion 421 on the swing rod 42 can protrude from or retract into the side of the sliding block 41, and the first hook portion 422 also swings and is locked or disengaged with the second hook portion 412.

[0046] As shown in FIG. 1, Figure 3 In one embodiment of the present application, the assembly groove 411 on the sliding block 41 includes a receiving portion 4111 adapted to the first end of the swing rod 42. When the first end of the swing rod 42 is embedded into the receiving portion 4111, the first hook portion 422 is separated from the second hook portion 412. When the first end of the swing rod 42 is separated from 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 directed to the forward sliding direction of the sliding block assembly 40 (i.e., the right side of FIG. 1), the second hook portion 412 is directed to the reverse sliding direction of the sliding block assembly 40 (i.e., the left side of FIG. 1), and the receiving portion 4111 protrudes from the main body of the assembly groove 411 to the reverse sliding direction of the sliding block assembly 40 (i.e., the left side of FIG. 1). Figure 4 Figure 4 Figure 4

[0047] As shown in FIG. 1, Figure 4 ​​​As shown, in one embodiment of the present application, the sliding groove 21 has a blocking part 61 at the end of the positive stroke of the swing lever 42, and when the swing lever 42 follows the sliding block 41 to slide to the end of the positive stroke (i.e. the tail end of the swing lever 42 abuts against the blocking part 61), the blocking part 61 prevents the swing lever 42 from continuing to move (at this time the sliding block 41 continues to move), so that the swing lever 42 and the spring leaf 43 move relative to the sliding block 41 until the head end of the swing lever 42 is embedded into the accommodating part 4111, at this time the first hook part 422 is separated from the second hook part 412, and at the same time the spring leaf 43 pushes the swing lever 42 so that the tail end of the swing lever 42 moves towards the side wall where the bayonet 211 is located, while the head end of the swing lever 42 cannot move towards the side wall where the bayonet 211 is located due to the limitation of the accommodating part 4111. Through the cooperation of the blocking part 61 and the spring leaf 43, the swing lever 42 can swing at the end of its positive stroke, and the clamping protrusion 421 can protrude from the side of the sliding block 41.

[0048] In particular, the head end of the swing lever 42 can have a circular arc surface, so as to facilitate the swinging of the tail end thereof.

[0049] In combination Figure 2 , Figure 4 As shown, in one embodiment of the present application, the sliding groove 21 has a limiting block 60 fixed therein, the blocking part 61 is formed by the head end of the limiting block 60, and a guide groove 212 is formed between the limiting block 60 and one side wall of the sliding groove 21 (e.g. the side wall facing the bayonet 211). Correspondingly, the sliding block 41 has a rod-shaped guide part 413 corresponding to the guide groove 212, and during the sliding of the sliding block 41, the rod-shaped guide part 413 slides in the guide groove 212. Through the cooperation of the rod-shaped guide part 413 and the guide groove 212, the stability of the sliding of the sliding block 41 can be improved. In actual application, the above-mentioned limiting block 60 can also be integrated with the sliding groove 21 (i.e. integrated with the fan fixed rod 20). Of course, in order to facilitate processing, the limiting block 60 is preferably separated from the fan fixed rod 20 and fixed in the sliding groove 21 by using screws or the like. In particular, the tail end of the rod-shaped guide part 413 is formed with a convex circle, the size of which is slightly larger than that of other parts of the rod-shaped guide part 413, and correspondingly, the shape and size of the tail end of the guide groove 212 are adapted to those of the convex circle, so that when the convex circle slides to the tail end of the guide groove 212, it can be kept stable to a certain extent, i.e. the inner offset distance of the window sash can be kept relatively stable.

[0050] In combination Figure 3 , Figure 4As shown, in one embodiment of the present invention, the latching protrusion 421 of the rocker arm 42 includes a stop surface 4211, which faces away from the first end of the long rod 30 (i.e., towards the forward sliding direction of the slider assembly 40). When the latching protrusion 421 is engaged with the latch 211, the latch 211 prevents the slider assembly 40 from sliding forward by cooperating with the stop surface 4211. Specifically, the latch 211 includes two sidewalls that are 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. Thus, when the stop surface 4211 abuts against the sidewall of the latch 211, the rocker arm 42 cannot slide forward, and consequently, the slider block 41 cannot slide forward either. Of course, in practical applications, other structures can also be used to prevent the rocker arm 42 from sliding forward when the latching protrusion 421 is engaged with the latch 211.

[0051] Specifically, the aforementioned latching protrusion 421 also has a first inclined surface 4212 facing away from the anti-retraction surface 4211. When the latching protrusion 421 is inserted into the latch 211 and slides in the opposite direction with the sliding block 41, the edge of the latch 211 pushes the first inclined surface 4212, causing the rocker arm 42 to move in the direction away from the latch 211 (while compressing the spring 43), thereby causing the latching protrusion 421 to exit the latch 211. Of course, in practical applications, an inclined surface can also be provided on the latch 211 to push the rocker arm 42, but this may result in the latch 211 being too deep.

[0052] Correspondingly, the slide groove 21 has a second inclined surface 213, which can be located on the side wall where the latch 211 is located in the slide groove 21. When the swing rod 42 slides to the end of the reverse stroke with the sliding block 41, the second inclined surface 213 pushes the swing rod 42 to prevent the swing rod 42 from continuing to move along the length direction of the fan fixing rod 20 (while the sliding block 41 remains to move along the length direction of the fan fixing rod 20). This causes the swing rod 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 swing rod 42 exits from the receiving part 4111. At the same time, the tail end of the swing rod 42 swings in the opposite direction (i.e. swings away from the second inclined surface 213), thereby locking the second hook part 412 with the first hook part 422.

[0053] like Figure 5 As shown, when the window sash is tilted inward to close, the first end of the rocker arm 42 is not embedded in the receiving portion 4111 of the mounting groove 411. Correspondingly, the first hook portion 422 of the rocker arm 42 is locked with the second hook portion 412 of the sliding block 41, the spring 43 is pushed by the rocker arm 42 into a compressed state, and the locking protrusion 421 of the rocker arm 42 is retracted into the edge of the sliding block 41. As the window sash tilts inward to open, the sliding block 41, the rocker arm 42, and the spring 43 slide forward in the groove 21 (e.g., Figure 5As shown in the diagram (sliding to the right), since the latch 421 retracts into the edge of the sliding block 41, the swing rod 42 will not be embedded in the latch 211 on the side wall of the slide groove 21 during the sliding process; when the swing rod 42 slides to the end and abuts against the blocking part 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 into the receiving part 4111 of the mounting groove 411, and the window sash reaches the maximum inward tilting opening distance. At the same time, the first hook part 422 and the second hook part 412 separate.

[0054] like Figure 6 As shown, when the window sash closes from its maximum tilt-in opening distance, the sliding block 41, the rocker arm 42, and the spring 43 slide in opposite directions within the slide groove 21 (e.g., Figure 6 (As shown, sliding to the left), the spring 43 pushes the rocker arm 42 so that the locking protrusion 421 protrudes from the edge of the sliding block 41 and abuts against the side wall of the slide groove 21. At the same time, the first hook 422 and the second hook 412 are offset. Since the locking protrusion 421 abuts against the side wall of the slide groove 21, when the locking protrusion 421 passes through the latch 211, the rocker arm 42, pushed by the spring 43, further engages the locking protrusion 421 into the latch 211. At this time, due to the presence of the anti-reverse surface 4211 on the locking protrusion 421, the rocker arm 42 can no longer slide to the right, and thus the sliding block 41 can no longer slide to the right, thus realizing the inward tilting distance positioning of the window sash. When the window sash continues to tilt inward to close... When closed, the edge of the latch 211 pushes the first inclined surface 4212 of the latch protrusion 421, causing the latch protrusion 421 to disengage from the latch 211, and the sliding block 41, the rocker arm 42 and the spring 43 continue to slide in the opposite direction; when the second inclined surface 213 of the slide groove 21 abuts against the side of the rocker arm 42 (e.g., the side wall of the first straight section), the second inclined surface 213 prevents the rocker arm 42 from continuing to move to the left, while the sliding block 41 continues to move to the left, the head end of the rocker arm 42 leaves the receiving part 4111, and at the same time the second inclined surface 213 also pushes the rocker arm 42 to swing, and the first hook part 422 and the second hook part 412 lock together, the latch protrusion 421 retracts into the edge of the sliding block 41, and the window sash closes inward.

[0055] The present invention also provides an inward-opening and tilt-and-turn window, including the pull rod device for the inward-opening and tilt-and-turn window as described above.

[0056] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A tie rod device for an inward-opening and tilt-and-turn window, characterized in that, This includes window frame connecting components, sash fixing rods, long rods, and slider components; The sash fixing rod has a groove, and the groove is arranged along the length of the sash fixing rod; the slider assembly is slidably assembled in the 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 groove, the angle between the long rod and the sash fixing rod increases, and when the slider assembly slides backward in the groove, the angle between the long rod and the sash fixing rod decreases; The sidewall of the slide groove has multiple slots distributed along the length of the sash fixing rod. The slider assembly includes a sliding block, a rocker arm, and a spring, each respectively assembled within the slide groove. The sliding block is hinged to the second end of the long rod. The upper surface of the sliding block has an assembly groove, and the side of the assembly groove facing the slot on the sidewall of the slide groove has a clearance. The rocker arm has a locking protrusion, and the rocker arm is installed in the assembly groove of the sliding block with the locking protrusion facing outward. The spring is installed between the sliding block and the rocker arm. During the reverse sliding of the slider assembly within the slide groove, the spring pushes the rocker arm to cause the locking protrusion to engage with the slot through the clearance of the assembly groove, and the rocker arm prevents the slider assembly from sliding forward within the slide groove, thereby preventing the window sash from opening inward. The swing arm 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 and the second hook portion are locked, the locking protrusion on the swing arm retracts into the assembly groove. When the first hook portion and the second hook portion are separated, the spring pushes the swing arm so that the locking protrusion abuts against or is embedded in the side wall of the slide groove through the clearance position of the assembly groove. The swing arm is strip-shaped, with the first hook and the locking protrusion located on both sides of the swing arm. When the swing arm slides forward following the sliding block, the first hook and the second hook are locked together. When the swing arm slides backward following the sliding block, the first hook and the second hook are separated. The assembly groove includes a receiving portion adapted to the head end of the swing rod. When the head end of the swing rod is inserted into the receiving portion, the first hook and the second hook separate. When the head end of the swing rod leaves the receiving portion, the second hook and the first hook lock together. The slide groove has a second inclined surface located on the side wall where the locking slot is located. When the swing rod slides to the end of the reverse stroke following the sliding block, the second inclined surface pushes the swing rod to prevent it from continuing to move along the length of the fan fixing rod, and causes the swing rod to move relative to the sliding block until the head end of the swing rod exits from the receiving portion. At the same time, the tail end of the swing rod swings in the opposite direction, thereby locking the second hook and the first hook together.

2. The tie rod device for an inward-opening and tilt-and-turn window according to claim 1, characterized in that, The groove has a blocking part located at the end of the forward stroke of the rocker arm. When the rocker arm slides to the end of the forward stroke with the sliding block, the blocking part 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 receiving part.

3. The tie rod device for an inward-opening and tilt-and-turn window according to claim 2, characterized in that, A limiting block is fixed inside the slide groove, and the blocking part is formed by the first end of the limiting block. A guide groove is formed between the limiting block and one side wall of the slide groove. The sliding block has a rod-shaped guide part corresponding to the guide groove, and the rod-shaped guide part slides in the guide groove during the sliding process of the sliding block.

4. The tie rod device for an inward-opening and tilt-and-turn window according to claim 1, characterized in that, The lever has a locking protrusion that includes a backstop surface facing away from the first end of the long rod, and the latch prevents the slider assembly from sliding forward by engaging with the backstop surface.

5. The tie rod device for an inward-opening and tilt-and-turn window according to claim 4, characterized in that, The card protrusion has a first inclined surface facing away from the anti-retraction surface, and when the card protrusion is inserted into the slot and slides in the opposite direction with the sliding block, the edge of the slot pushes the first inclined surface to make the card protrusion exit the slot.

6. The tie rod device for an inward-opening and tilt-and-turn window according to claim 5, characterized in that, The groove has a second inclined surface, and when the swing rod slides to the end of the reverse stroke following the sliding block, the second inclined surface swing rod causes the tail end of the swing rod to swing in the opposite direction, while moving the swing rod relative to the sliding block until the head end of the swing rod exits from the receiving part and the first hook part locks with the second hook part.

7. An inward-opening and tilt-and-turn window, characterized in that, Includes a pull rod device for an inward-opening and tilt-and-turn window as described in any one of claims 1-6.

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