Pull rod device applied to inward tilt-turn door and window

Abstract

The utility model relates to the field of doors and windows, in particular to a pull rod device applied to inward tilt-turn doors and windows, which is characterized by comprising a fixed seat and a pull rod, a positioning clamping groove is integrally formed on the fixed seat, and the pull rod is hinged on the fixed seat in a swinging manner and can swing to enter and exit from the positioning clamping groove. And the pull rod can be clamped by the positioning clamping groove. The structure for positioning the pull rod not only has very high structural strength, but also has very high stability, and does not deform or loosen after being used for a long time, so that the pull rod can be accurately and stably positioned for a long time, the probability that the pull rod cannot be accurately pulled and held can be greatly reduced, and the service life of the pull rod is prolonged. Therefore, the service life of the inward tilt-turn door and window is prolonged, and the safety is improved.

Description

Technical Field

[0001] This utility model relates to the field of doors and windows, and in particular to a tie rod device used in inward-opening and tilt-and-turn doors and windows. Background Technology

[0002] Chinese patent publication number CN219138728U discloses a technical solution entitled "A Pull Rod Applicable to Inward Opening and Tilting". This technical solution includes the following technical features: a fixed base, a pull rod, a buckle, a connecting plate, an L-shaped plate, a U-shaped buckle plate, a transmission rod, a slider, etc. In this technical solution, the connecting plate of the buckle is fixed to the fixed base by two locking bolts, and the pull rod is horizontally hinged to the fixed base, allowing the pull rod to swing horizontally onto the U-shaped buckle plate; so that when the door or window sash is opened, the position of the pull rod is positioned by the buckle. Because the connecting plate, L-shaped plate, and U-shaped buckle plate that make up the buckle are all relatively thin, and the buckle is locked by locking bolts, this not only results in limited structural strength of the buckle, but also limited stability of the buckle's installation and positioning. Therefore, after a period of use, the buckle is prone to deformation and / or loosening, which can reduce the accuracy of the buckle in positioning the tie rod or prevent it from positioning the tie rod at all. Consequently, the tie rod may not be able to accurately hold the door and window sash, which significantly affects the service life and safety of inward-opening and tilt-and-turn doors and windows. Therefore, it is essential to redesign the tie rod structure of inward-opening and tilt-and-turn doors and windows. Utility Model Content

[0003] The purpose of this utility model is to solve the above-mentioned problems and shortcomings, and to provide a pull rod device for use in inward opening and tilt-and-turn doors and windows. The structure for positioning the pull rod on this pull rod device not only has very high structural strength, but also very high stability. It will not deform or loosen even after long-term use, thus facilitating the accurate and stable positioning of the pull rod over a long period of time. This greatly reduces the probability of the pull rod not being accurately held, which helps to improve the service life and safety of inward opening and tilt-and-turn doors and windows.

[0004] The technical solution of this utility model is implemented as follows:

[0005] A pull rod device for use in inward-opening and tilt-and-turn doors and windows is characterized by including a fixed base and a pull rod, wherein the fixed base is integrally formed with a positioning groove, the pull rod is pivotally hinged to the fixed base, and the pull rod can swing in and out of the positioning groove, and the pull rod can be held by the positioning groove.

[0006] Preferably, the fixed base is provided with a detachable limiting block, and one end of the limiting block is inserted into the positioning slot, and the one end of the limiting block can limit the pull rod that enters the positioning slot.

[0007] Preferably, the outer wall of the fixing base is provided with an insert hole that extends into the positioning slot, and the two ends of the limiting block are respectively provided with elastic hooks. The limiting block is inserted into the insert hole, and both elastic hooks are fastened to the slot wall of the positioning slot.

[0008] Preferably, the limiting block includes an overlapping part and a limiting protrusion. One end of the limiting protrusion is connected to the middle of the overlapping part, and two elastic hooks are respectively provided at both ends of the overlapping part. The overlapping part overlaps on the outer wall of the fixing seat, and the other end of the limiting protrusion is inserted into the positioning groove. The surface of the pull rod facing the limiting protrusion is provided with a limiting groove, and the other end of the limiting protrusion is placed in the limiting groove.

[0009] Preferably, the surface of the pull rod has two parallel reinforcing ridges protruding from it, and the limiting groove is formed between the two reinforcing ridges.

[0010] Preferably, the mounting notch is provided on the middle of the front bottom edge of the fixing base, and there are two positioning slots, which are located on the left and right sides of the front wall of the fixing base respectively. One end of the pull rod can be horizontally rotatably hinged to the upper wall of the mounting notch, and the pull rod can swing in and out of the two positioning slots, and the pull rod can be held by the two positioning slots.

[0011] Preferably, the top rear edge of the fixing seat is provided with a clearance notch, and the upper front wall of the fixing seat is provided with a horizontally extending fastening protrusion. At least one set screw is screwed onto the front wall of the fixing seat below the fastening protrusion, with the set end of the set screw facing the rear and upward, and the set end of the set screw can pass through into the clearance notch as the set screw is tightened.

[0012] Preferably, the fixing seat is provided with a reinforcing protrusion, and the pull rod is hinged to the reinforcing protrusion.

[0013] Preferably, the middle recess of the pull rod has at least one protruding rib, and the length direction of the protruding rib is in the same direction as the length direction of the pull rod.

[0014] Preferably, the pull rod device applied to inward-opening and tilt-and-turn doors and windows further includes a horizontal slider. The longitudinal section of the horizontal slider is inverted T-shaped. A protrusion is provided on the top surface of the horizontal slider. A transversely extending T-shaped limiting groove is provided on the top surface of the protrusion, and one end of the left and right ends of the T-shaped limiting groove passes through to the corresponding side wall of the protrusion. An inverted T-shaped limiting shaft is provided on the swing end of the pull rod, and the large end of the limiting shaft can be slidably embedded in the T-shaped limiting groove.

[0015] The beneficial effects of this utility model are as follows: In this pull rod device, a positioning groove is integrally formed on the fixed base, allowing the pull rod to be held in place by the positioning groove. This structure for positioning the pull rod not only has very high structural strength but also very high stability. It will not deform or loosen even after prolonged use, thus facilitating accurate and stable positioning of the pull rod over the long term. This significantly reduces the likelihood of the pull rod failing to be accurately held, which helps improve the service life and safety of inward-opening and tilt-and-turn doors and windows. Such a pull rod device possesses very high reliability and applicability. Attached Figure Description

[0016] Figure 1 This is one of the three-dimensional structural schematic diagrams of the tie rod device in this utility model.

[0017] Figure 2 This is the second three-dimensional structural schematic diagram of the tie rod device in this utility model.

[0018] Figure 3 This is the third three-dimensional structural diagram of the tie rod device in this utility model.

[0019] Figure 4 This is a structural diagram of the assembled state of the fixed base and the tie rod in this utility model.

[0020] Figure 5 This is one of the three-dimensional structural diagrams of the fixed base in this utility model.

[0021] Figure 6 This is the second three-dimensional structural diagram of the fixed base in this utility model.

[0022] Figure 7 This is the third three-dimensional structural diagram of the fixed base in this utility model.

[0023] Figure 8 This is a three-dimensional structural diagram of the limiting block in this utility model.

[0024] Figure 9 This is a three-dimensional structural diagram of the pull rod in this utility model.

[0025] Figure 10 This is a structural diagram of the present invention in use. Detailed Implementation

[0026] like Figures 1 to 7 As shown, the present invention provides a pull rod device for use in inward-opening and tilt-and-turn doors and windows, including a fixed base 1 and a pull rod 2. The fixed base 1 has an integrally formed positioning groove 11. The pull rod 2 is pivotally hinged to the fixed base 1, allowing the pull rod 2 to pivot in and out of the positioning groove 11, and also allowing the pull rod 2 to be held in place by the positioning groove 11.

[0027] In this pull rod device, a positioning groove 11 is integrally formed on the fixed base 1, allowing the pull rod 2 to be held in place by the positioning groove 11. This positioning structure for the pull rod 2 not only has very high structural strength but also very high stability. It will not deform or loosen even after long-term use, thus facilitating accurate and stable positioning of the pull rod 2 over the long term. This greatly reduces the probability of the pull rod 2 failing to be accurately held, which helps to improve the service life and safety of inward-opening and tilt-and-turn doors and windows. Such a pull rod device has very high reliability and applicability.

[0028] like Figures 1 to 7 As shown, the fixed base 1 is provided with a detachable limiting block 12, with one end of the limiting block 12 passing through the positioning slot 11, and the limiting block 12 also limiting the pull rod 2 that enters the positioning slot 11. The limiting block 12 can limit the pull rod 2, which reduces wear on the positioning slot 11. The detachable nature of the limiting block 12 facilitates replacement and maintenance. The use of an elastic material for the limiting block 12 not only facilitates maintenance but also ensures elastic limiting, reducing the impact on the swinging motion of the pull rod while achieving good limiting effect, thus improving the reliability and applicability of the pull rod device. Furthermore, the worn limiting block 12 can be removed and replaced without replacing the fixed base 1, which helps reduce maintenance costs.

[0029] The limiting block 12 is made of plastic or rubber with certain elastic deformation properties, so that it can facilitate the swing of the lever while satisfying the limiting function.

[0030] like Figures 6 to 8 As shown, the outer wall of the fixed base 1 has an insertion hole 13 that extends into the positioning groove 11. The two ends of the limiting block 12 are respectively provided with elastic hooks 121. The limiting block 12 is fitted into the insertion hole 13, and both elastic hooks 121 are fastened to the groove wall of the positioning groove 11. This not only achieves accurate and stable positioning of the limiting block 12, but also facilitates the installation and removal of the limiting block 12, thereby helping to further improve the reliability and applicability of the pull rod device.

[0031] like Figures 6 to 8 As shown, the positioning slot 11 is located on the front wall of the fixed base 1, and the positioning slot 11 is a notch that extends horizontally through the fixed base 1. The fitting hole 13 is opened on the top surface of the fixed base 1, and the lower end of the fitting hole 13 extends through the upper groove wall of the positioning slot 11. The connection end of the elastic hook 121 and the limiting block 12 can achieve elastic swing, thus forming the elastic hook 121. This not only facilitates manufacturing, but also helps to achieve a stable and reliable positioning effect on the pull rod 2.

[0032] like Figures 4 to 9As shown, the limiting block 12 includes an overlapping portion 122 and a limiting protrusion 123. One end of the limiting protrusion 123 is connected to the middle of the overlapping portion 122. Two elastic hooks 121 are respectively provided at both ends of the overlapping portion 122. The overlapping portion 122 overlaps the outer wall of the fixing base 1. The other end of the limiting protrusion 123 is inserted into the positioning groove 11. The pull rod 2 has a limiting groove 21 on its surface facing the limiting protrusion 123, and the other end of the limiting protrusion 123 is placed in the limiting groove 21. Such a limiting block 12 is very simple and reliable. This not only facilitates the manufacture of the limiting block 12, but also enables the limiting block 12 to play a more stable and reliable limiting role, thereby helping to further improve the reliability and applicability of the pull rod device.

[0033] like Figure 8 As shown, a shrinkage groove 124 is provided on the top surface of the overlapping portion 122, and the limiting protrusion 123 is located on the bottom surface of the overlapping portion 122, with the shrinkage groove 124 extending through to the upper end of the limiting protrusion 123. The shrinkage groove 124 not only reduces the use of raw materials but also facilitates the fastening of the elastic hook 121 and allows the limiting protrusion 123 to shrink and deform. This helps improve the ease of assembly and enables the limiting block 12 to perform a stable and reliable limiting function, thereby further improving the reliability and applicability of the pull rod device.

[0034] like Figures 4 to 7 As shown, the limiting block 12 can move vertically on the fixed base 1, and when the elastic hook 121 contacts the upper side wall of the positioning slot 11, it still ensures that the lower end of the limiting protrusion 123 is located in the limiting groove 21. This not only reduces the impact intensity of the pull rod 2 contacting the limiting block 12, but also allows the limiting protrusion 123 to play a very good limiting role for the pull rod 2. When the pull rod 2 swings away from the positioning slot 11, the opening of the limiting groove 21 presses against the limiting protrusion 123, causing the limiting protrusion 123 to elastically contract and deform, so that the pull rod 2 can disengage from the positioning slot 11, thereby meeting normal usage requirements.

[0035] like Figure 9 As shown, the surface of the pull rod 2 has two parallel reinforcing ridges 22 protruding from it, and the limiting groove 21 is formed between the two reinforcing ridges 22. This not only enhances the structural strength of the pull rod 2 by utilizing the reinforcing ridges 22, but also facilitates the formation of the limiting groove 21, and enables the limiting groove 21 to perform a more stable and reliable limiting function, thereby helping to further improve the reliability and applicability of the pull rod device.

[0036] like Figures 4 to 6As shown, a mounting notch 14 is provided on the center of the front bottom edge of the fixed base 1. There are two positioning slots 11, located on the left and right sides of the front wall of the fixed base 1, respectively. One end of the pull rod 2 is horizontally rotatably hinged to the upper wall of the mounting notch 14, allowing the pull rod 2 to swing in and out of the two positioning slots 11, and also allowing the pull rod 2 to be held by the two positioning slots 11. This satisfies the installation requirements in two orientations, making it easy to select which positioning slot 11 holds the pull rod 2 according to actual installation needs, thus facilitating various usage requirements; moreover, this structure is convenient to manufacture and assemble, which helps to further improve the applicability of the pull rod device.

[0037] like Figure 6 As shown, the left and right ends of the positioning slot 11 on the left side penetrate to the left side wall of the fixed base 1 and the left opening wall of the mounting notch 14, respectively, and the left and right ends of the positioning slot 11 on the right side penetrate to the right opening wall of the mounting notch 14 and the right side wall of the fixed base 1, respectively. This not only facilitates the manufacturing of the fixed base 1, but also facilitates the manufacturing of the pull rod 2, and enables accurate and stable positioning of the pull rod 2, which further improves the reliability and applicability of the pull rod device.

[0038] like Figure 5 As shown, a guide slope 111 is provided on the lower edge of the positioning slot 11. The guide slope 111 guides the pull rod 2 as it enters the positioning slot 11, thereby improving the accuracy and stability of the pull rod 2 being held by the positioning slot 11, and further improving the reliability and applicability of the pull rod device.

[0039] like Figures 4 to 7 As shown, a clearance notch 15 is provided on the rear top edge of the fixing base 1, and a horizontally extending fastening protrusion 16 is provided on the front upper wall of the fixing base 1. At least one set screw 17 is screwed onto the front wall of the fixing base 1 below the fastening protrusion 16, with the set end of the set screw 17 facing rearward and upward, and the set end of the set screw 17 can pass through into the clearance notch 15 as the set screw 17 is tightened. In this way, when a horizontal T-shaped groove is provided on the upper inner surface of the door and window frame, the fastening protrusion 16 and the set end of the set screw 17 can be placed in the front and rear inner grooves of the T-shaped groove, respectively, and then the set screw 17 can be used to tighten the groove wall of the T-shaped groove. This allows the fixing base 1 to be quickly and stably positioned on the door and window frame, thereby improving the convenience and stability of the installation and positioning of the fixing base 1.

[0040] like Figure 2 and Figure 6As shown, the fixed base 1 is provided with a reinforcing protrusion 18, and the pull rod 2 is hinged to the reinforcing protrusion 18. This not only controls the amount of molding material used on the fixed base 1, but also ensures that the hinge of the pull rod 2 has high structural strength, thereby helping to further improve the reliability and applicability of the pull rod device.

[0041] like Figure 6 As shown, the end of the reinforcing protrusion 18 that contacts the pull rod 2 is a protruding ring 181, which reduces friction and ensures smooth swing of the pull rod 2, thereby helping to further improve the applicability of the pull rod device.

[0042] like Figures 1 to 4 , Figure 9 As shown, the pull rod 2 is bent to form at least one bent portion 23 in the vertical direction. The bent portion 23 allows the two ends of the pull rod 2 to be misaligned vertically, which eliminates the need to reserve a large space between the door / window frame and the door / window sash for the pull rod device. This not only helps the pull rod device to stably perform its holding effect, but also helps to ensure that the installation positioning and opening / closing of the door / window sash are very accurate and stable.

[0043] like Figure 9 As shown, the pull rod 2 has at least one protruding rib 24 recessed in the middle, and the length direction of the protruding rib 24 is in the same direction as the length direction of the pull rod 2. The protruding rib 24 can effectively enhance the structural strength of the pull rod 2, thereby helping to improve the reliability and applicability of the pull rod device.

[0044] like Figures 1 to 4 , Figure 9 As shown, the pull rod device applied to inward-opening and tilt-and-turn doors and windows also includes a horizontal slider 3. The longitudinal cross-section of the horizontal slider 3 is inverted T-shaped. A protrusion 31 is provided on the top surface of the horizontal slider 3. A laterally extending T-shaped limiting groove 32 is provided on the top surface of the protrusion 31, and one end of the T-shaped limiting groove 32 extends through to the corresponding side wall of the protrusion 31. An inverted T-shaped limiting shaft 25 is provided on the swing end of the pull rod 2. The large end of the limiting shaft 25 can be slidably fitted into the T-shaped limiting groove 32. The horizontal slider 3 can be slidably assembled with the top surface of the door and window sash using a T-shaped fitting structure. This not only helps to improve the stability of the horizontal slider 3's installation and positioning, but also helps to improve the accuracy and stability of the horizontal slider 3's lateral sliding. The cooperation between the limiting shaft 25 and the T-shaped limiting groove 32 helps the pull rod 2 to exert a very stable and reliable holding effect, thereby helping to further improve the reliability and applicability of the pull rod device.

[0045] like Figure 3 As shown, the opening at the end of the T-shaped limiting groove 32 is V-shaped. This facilitates the accurate and stable entry of the limiting shaft 25 into the T-shaped limiting groove 32, thereby helping to further improve the reliability and applicability of the pull rod device.

[0046] like Figure 10 As shown, in actual use, this pull rod device is used in conjunction with other accessories of inward-opening and tilting doors and windows. Holes and / or shafts can be provided on the horizontal slider 3 to connect with other accessories, thus meeting normal usage requirements.

[0047] The above embodiments are preferred embodiments of this utility model. All structures similar to this utility model and equivalent changes thereof should fall within the protection scope of this utility model.

Claims

1. A stay rod device for application to an inward opening inwardly casement window, characterised in that: The utility model provides a fixed seat (1), pull rod (2), wherein fixed seat (1) integrative location card slot (11) has on, pull rod (2) can swingly articulate on fixed seat (1), and make pull rod (2) can swing in and out location card slot (11), still make pull rod (2) can be held by location card slot (11) card.

2. The pull rod device for use on an in-swinging and in-tilting casement window according to claim 1, characterized in that: The fixed seat (1) is provided with a detachable limiting block (12), and one end of the limiting block (12) is arranged in the location card slot (11), and the other end of the limiting block (12) can limit the pull rod (2) entering the location card slot (11).

3. The pull rod device for use on an in-swinging and in-tilting casement window according to claim 2, characterized in that: The outer wall of the fixed seat (1) is provided with an embedding hole (13) penetrating into the location card slot (11), and the limiting block (12) is embedded in the embedding hole (13), and the two elastic hooks (121) are buckled on the groove wall of the location card slot (11).

4. The pull rod device for use on an in-swinging and in-tilting casement window according to claim 3, characterized in that: The limiting block (12) comprises a lap joint part (122) and a limiting protrusion (123), one end of the limiting protrusion (123) is connected to the middle part of the lap joint part (122), the two elastic hooks (121) are arranged at the two ends of the lap joint part (122), the lap joint part (122) is lap jointed on the outer wall of the fixed seat (1), and the other end of the limiting protrusion (123) is arranged in the location card slot (11); the surface of the pull rod (2) facing the limiting protrusion (123) is provided with a limiting groove (21), and the other end of the limiting protrusion (123) is arranged in the limiting groove (21).

5. The pull rod device for use on an in-swinging and in-tilting door window according to claim 4, characterized in that: The surface of the pull rod (2) is provided with two parallel reinforcing protrusions (22), and the limiting groove (21) is formed between the two reinforcing protrusions (22).

6. The pull rod device for use on a casement window having inwardly opening and inwardly swinging leaves according to claim 1, wherein: The middle part of the front bottom edge of the fixed seat (1) is provided with a mounting gap (14), the location card slot (11) has two, and the two location card slots (11) are arranged on the left and right of the front wall of the fixed seat (1); one end of the pull rod (2) is horizontally rotatably articulated on the upper wall of the mounting gap (14), the pull rod (2) can swing in and out of the two location card slots (11), and the pull rod (2) can be held by the two location card slots (11).

7. The pull rod device for use on a casement window having inwardly opening and inwardly swinging leaves according to claim 1, wherein: The rear top edge of the fixed seat (1) is provided with a avoiding gap (15), the front upper wall of the fixed seat (1) is provided with a horizontally extending buckling protrusion (16), at least one set screw (17) is screwed on the front wall of the fixed seat (1) below the buckling protrusion (16), the set end of the set screw (17) faces upward, and the set end of the set screw (17) can pass out into the avoiding gap (15) with the tightening of the set screw (17).

8. The pull rod device for use on an in-swinging and in-tilting door window according to claim 1, characterized in that: The fixed seat (1) is provided with a reinforcing protrusion (18), and the pull rod (2) is articulated on the reinforcing protrusion (18).

9. The pull rod device for use on an in-swinging and in-tilting door window according to claim 1, characterized in that: The middle part of the pull rod (2) is recessed to form at least one protrusion (24), and the length direction of the protrusion (24) is the same as the length direction of the pull rod (2).

10. The pull rod device for use on an in-swinging and in-tilting door window according to claim 1, characterized in that: Also include transverse slider (3), the longitudinal section of the transverse slider (3) is inverted T-shaped, the top surface of the transverse slider (3) is provided with a convex part (31), the top surface of the convex part (31) is provided with a transversely extending T-shaped limiting slot (32), and one end of the left and right ends of the T-shaped limiting slot (32) is penetrated to the corresponding side wall of the convex part (31), the swing end of the pull rod (2) is provided with an inverted T-shaped limiting shaft (25), and the large end of the limiting shaft (25) can be slidably embedded in the T-shaped limiting slot (32).

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