A telescopic handle
By designing a retractable door and window handle, the handle takes up space and accidentally bumps by using the insertion and slide out of the grooves in the handle, the handle takes up space and crashes is solved, and a safe and convenient user experience is achieved.
Patent Information
- Application Number
- CN202421424855.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-20
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2034-06-20
AI Technical Summary
Among the existing door and window accessories, the handle is prone to accidental collision and causes injury, and it is inconvenient to occupy space when not in use.
Design a telescopic handle, including a base, a square shaft, a limit sleeve and a handle. By inserting and sliding out the grooves in the handle, the handle can be switched between short and long models, saving space and avoiding accidental collisions.
It realizes space savings for the handle when not in use, reduces the risk of accidental collisions, and improves the safety and convenience of use.
Smart Images
Figure CN222701689U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of door and window accessories, in particular to a telescopic handle. Background Art
[0002] In order to facilitate the gripping of the handle, the installation position of the handle generally needs to be a certain distance away from the door or window where it is installed, so that the handle is relatively protruding outside the door or window. It is easy to accidentally hit the handle when passing by and get injured. Utility Model Content
[0003] The utility model aims to provide a telescopic handle to solve one or more technical problems existing in the prior art and at least provide a beneficial choice or create conditions.
[0004] The technical solution adopted to solve the above technical problems is: a telescopic handle, comprising: a base, rotatably connected to a square shaft; a limit sleeve, arranged on one side of the base; a handle, one end of which is provided with a groove for the limit sleeve to slide and embed, and the square shaft is transmission-connected to the handle.
[0005] This technical solution has at least the following beneficial effects: when the handle is not in use, the handle can be pushed to embed the limit sleeve into the groove inside the handle, thereby shortening the distance between the handle and the installed position to form a short handle; when the handle is retracted, the limited space of doors and windows can be saved, and the handle is not easily bumped or accidentally hit, which not only protects the handle but also ensures the safety of pedestrians and belongings; when the handle is needed, the handle is pulled out to form a long handle, and at this time the limit sleeve extends out of the groove, so that the distance between the handle and the installed position can be lengthened, increasing the operating space of the handle and facilitating use by users.
[0006] As a further improvement of the above technical solution, the handle is provided with a connecting screw, and the connecting screw is threadedly connected to the end of the square shaft. The handle is detachably connected to the square shaft through the connecting screw. On the one hand, when the handle is pulled, the square shaft can be driven to move together to ensure the transmission relationship between the square shaft and the handle. On the other hand, the installation structure is simple, which facilitates the installation of the square shaft and the handle.
[0007] As a further improvement of the above technical solution, the side wall of the square shaft is provided with a limit groove along the axial direction, and the limit sleeve is threaded with a limit screw with one end embedded in the limit groove, and one end of the limit screw can slide in the limit groove. By limiting the sliding range of the square shaft, the pulling range of the handle can be limited to prevent the handle from escaping from the range of the limit sleeve, thereby ensuring the telescopic reliability of the handle. In addition, by screwing out and screwing in the limit screw, the square shaft can be easily released or restricted, thereby facilitating the installation of the square shaft.
[0008] As a further improvement of the above technical solution, a positioning shaft is rotatably connected in the base, a square through hole is provided in the positioning shaft, and the square shaft passes through the square through hole. The rotation of the square shaft can drive the shaft to rotate, thereby realizing the rotation movement of the square shaft relative to the base, and the square shaft can slide along the axis relative to the positioning shaft, thereby realizing the sliding movement of the square shaft relative to the axis of the base.
[0009] As a further improvement of the above technical solution, the limit screw extends into one end of the limit sleeve and passes through the rotating shaft and then is embedded in the limit groove, and the limit screw is threadedly connected to the limit sleeve and / or the limit screw is threadedly connected to the positioning rotating shaft. The limit sleeve is connected to the positioning rotating shaft through the limit screw, so that when the square shaft drives the positioning rotating shaft to rotate relative to the base, the limit sleeve also rotates relative to the base, so that the limit sleeve and the handle can achieve synchronous rotation to prevent the limit sleeve and the handle from rotating relative to each other and being easily clamped. In addition, the limit sleeve can be installed on the positioning rotating shaft through the limit screw, which can facilitate the installation and removal of the limit sleeve and facilitate the flexibility of the handle assembly.
[0010] As a further improvement of the above technical solution, the positioning shaft is provided with a mounting hole, an elastic member is provided in the mounting hole, a positioning bead is provided at one end of the elastic member away from the bottom wall of the mounting hole, the square shaft is provided with positioning grooves at positions corresponding to the two ends of the limiting groove, and the elastic member provides elastic force to embed the positioning bead into the positioning groove. The positioning bead positions the sliding position of the square shaft, which can improve the stability of the handle in two states, and at the same time, can also improve the feel of the handle when it is extended or pushed in.
[0011] As a further improvement of the above technical solution, a shielding groove is provided on the handle away from the square shaft and corresponding to the position of the connecting screw, and a shielding plate is adapted to fit the shielding groove, thereby reducing the possibility of the connecting screw contacting flowing air and water, increasing the service life of the connecting screw, and at the same time, improving the aesthetic appearance of the handle.
[0012] As a further improvement of the above technical solution, the bottom wall of the groove is provided with a square hole for the square shaft to be embedded in. The end of the square shaft is embedded in the square hole, and then the connecting screw is passed through the handle and the square shaft in sequence, which can facilitate the positioning and installation of the square shaft.
[0013] As a further improvement of the above technical solution, the base is provided with a bottom plate, the bottom plate is provided with a square shaft hole, the square shaft is provided with a cylindrical section that can rotate in the square shaft hole, when the limit sleeve is embedded in the groove, the position of the square shaft except the cylindrical section is in the square shaft hole, when the limit sleeve extends out of the groove, the cylindrical section is in the square shaft hole. When the handle is in the short handle state, the limit sleeve is hidden in the groove, so that the square section of the square shaft is in the square shaft hole, thereby limiting the rotation of the square shaft, making the handle unable to rotate and unable to be used, and improving the safety in this state. When the handle is in the long handle state, the limit sleeve extends out of the groove, so that the round section of the square shaft extends into the square shaft hole, so that the side wall of the square shaft hole cannot limit the square shaft, thereby allowing the square shaft to rotate relative to the bottom plate, ensuring the usability of the handle when it is extended.
[0014] As a further improvement of the above technical solution, the bottom plate is provided with a screw, and the screw is threadedly connected to the base. The bottom plate is detachably connected to the base via the screw, which improves the flexibility of the handle assembly, and the bottom plate can be installed or not installed according to whether it is necessary to limit the rotation of the handle when the handle is in the short handle state. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:
[0016] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the utility model in a short handle state;
[0017] Figure 2 It is a schematic diagram of the overall structure of the embodiment of the utility model in the long handle state;
[0018] Figure 3 It is a schematic diagram of the cross-sectional structure of the embodiment of the utility model in a short handle state;
[0019] Figure 4 This is a schematic diagram of the cross-sectional structure of the embodiment of the utility model in the long handle state;
[0020] Figure 5 It is a first schematic diagram of the overall structure decomposition in an embodiment of the utility model;
[0021] Figure 6 A second schematic diagram of the overall structure of the embodiment of the utility model;
[0022] Figure 7 This is a schematic diagram of the cross-sectional structure of the handle end in the embodiment of the utility model;
[0023] Figure 8It is a structural schematic diagram of the square shaft in the embodiment of the utility model.
[0024] 100, base; 200, square shaft; 210, connecting screw; 220, cylindrical section; 300, limiting sleeve; 400, handle; 410, groove; 420, square hole; 430, shielding groove; 440, shielding plate; 500, limiting groove; 510, limiting screw; 600, positioning shaft; 610, square through hole; 700, mounting hole; 710, elastic part; 720, positioning bead; 730, positioning groove; 800, bottom plate; 810, square shaft hole; 830, screw. DETAILED DESCRIPTION
[0025] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.
[0026] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0027] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.
[0028] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.
[0029] Reference Figure 1-8A telescopic handle includes a base 100, a square shaft 200, a limiting sleeve 300 and a handle 400. A positioning shaft 600 is arranged inside the base 100. The radius of one end of the positioning shaft 600 is larger, so that the positioning shaft 600 is T-shaped. A stepped circular groove adapted to the end with a larger diameter of the positioning shaft 600 is provided on one side of the base 100 for embedding and installation of one end of the positioning shaft 600. After the positioning shaft 600 is embedded in the stepped circular groove, the end with a smaller diameter of the positioning shaft 600 passes through the side wall of the base 100 and extends to a distance of one end. The positioning shaft 600 can rotate relative to the base 100. The limiting sleeve 300 is a circular cylinder structure, and the limiting sleeve 300 is sleeved on the end of the positioning shaft 600 protruding from the base 100, that is, the end with a smaller diameter.
[0030] The side wall of the limit sleeve 300 is threadedly connected to the limit screw 510, and the limit screw 510 is passed through the side wall of the positioning shaft 600, so that the limit sleeve 300 is relatively fixedly connected to the positioning shaft 600, and one side of the limit sleeve 300 is in conflict with the side of the base 100 away from the embedded positioning shaft 600. Under the bottom wall structure of the stepped circular groove, the positioning shaft 600 and the limit sleeve 300 are respectively limited to the positions on both sides of the base 100, which is convenient for the assembly connection between the positioning shaft 600, the limit sleeve 300 and the base 100.
[0031] A groove 410 matching with the limiting sleeve 300 is provided at one end of the handle 400, and a square hole 420 matching with the end of the square shaft 200 is provided on the bottom wall of the groove 410. A countersunk hole connected to the square hole 420 is provided on the side of the handle 400 away from the groove 410, and a connecting screw 210 is passed through the countersunk hole. The rod of the connecting screw 210 is threadedly connected with the end of the square shaft 200 embedded in the square hole 420, so that the square shaft 200 and the handle 400 can be detachably connected. A square through hole 610 matching with the outer shape of the square shaft 200 is provided in the middle of the positioning shaft 600 along the axial direction. After the handle 400 and the square shaft 200 are relatively fixed by the connecting screw 210, the groove 410 of the handle 400 is inserted into the limiting sleeve 300, so that the limiting sleeve 300 can be completely accommodated in the groove 410. At this time, the end of the square shaft 200 away from the handle 400 passes through the square through hole 610 in the middle of the positioning shaft 600. The base 100 is installed on the door and window structure, and the square shaft 200 is connected to the lock core structure in a transmission manner. When the user rotates the handle 400, the square shaft 200, the positioning shaft 600 and the limiting sleeve 300 can be driven to rotate relative to the base 100, and the square shaft 200 drives the lock core structure to move to achieve unlocking or locking.
[0032] A shielding groove 430 is provided on the side of the handle 400 away from the groove 410 and corresponding to the countersunk hole. A shielding plate 440 is fitted into the shielding groove 430. The shielding plate 440 can shield the connecting screw 210 in the countersunk hole, thereby ensuring the service life of the connecting screw 210 and improving the aesthetics of the handle 400. The side of the shielding plate 440 away from the handle 400 can be marked with information related to the handle to form a nameplate.
[0033] The side wall of the square shaft 200 is provided with a limiting groove 500, and the length direction of the limiting groove 500 is parallel to the axis direction of the square shaft 200. One end of the limiting screw 510 penetrates the limiting sleeve 300 and passes through the positioning shaft 600 and is embedded in the limiting groove 500, so that the end of the limiting screw 510 penetrates can slide in the limiting groove 500. Under the restriction of the end wall of the limiting groove 500, the square shaft 200 slides within a preset range, thereby ensuring that the handle 400 will not separate from the limiting sleeve 300 during the sliding process.
[0034] When the handle 400 is not in use, the handle 400 can be pushed to hide the limiting sleeve 300 in the groove 410 of the handle 400, so that the distance between the handle 400 and the installed position becomes shorter, forming a short handle. When the handle 400 is put away, the limited space of the door and window can be saved, and the handle 400 is not easy to be bumped or accidentally hit, which can not only protect the handle 400, but also ensure the safety of pedestrians and items. When the handle 400 needs to be used, the handle is pulled out, and the limiting sleeve 300 leaks out of the handle 400, so that the distance between the handle 400 and the installed position becomes longer, forming a long handle, increasing the operating space of the handle 400, and facilitating the use of the user.
[0035] It should be noted that the sliding range of the square shaft 200 relative to the axis is within the range of transmission connection with the lock core, so as to ensure the transmission connection relationship between the square shaft 200 and the lock core structure during the sliding process of the handle 400. The through holes of the limit sleeve 300 and the positioning shaft 600 for the limit screw 510 to pass through can be both set as threaded holes with continuous threads, or one of them can be set as a threaded hole and the other can be set as a smooth hole.
[0036] In other embodiments, the square shaft 200, the positioning shaft 600 and the limiting sleeve 300 are all relatively fixedly arranged, one end of the square shaft 200 extends out of the positioning shaft 600 and is slidably connected to the handle 400, the handle 400 and the square shaft 200 are not relatively fixedly connected by the connecting screw 210, but the handle 400 is slidably connected to the square shaft 200 through the square hole 420, and the limiting groove 500 is provided on the inner side wall of the groove 410 of the handle 400. When the handle 400 is rotated, the square shaft 200, the positioning shaft 600 and the limiting sleeve 300 can be driven to rotate together to realize the functions of unlocking and locking, and when the handle 400 is pulled, the handle 400 can slide a preset distance relative to the square shaft 200 to realize the relative extension and retraction of the handle 400 relative to the limiting sleeve 300, thereby realizing the switching between the short handle and the long handle.
[0037] A mounting hole 700 is provided on the inner side of the positioning shaft 600, and an elastic member 710 and a positioning bead 720 are accommodated in the mounting hole 700. Two positioning grooves 730 are provided on a side wall of the square shaft 200 where the limiting groove 500 is not provided, and the two positioning grooves 730 correspond to the two end positions of the limiting groove 500. The elastic member 710 is a coil spring, one end of which abuts against the bottom wall of the mounting hole 700, and the other end abuts against the positioning bead 720. The elastic force of the coil spring abuts against the positioning bead 720 against the side wall of the square shaft 200, so that when the square shaft 200 is located at the two end positions of the sliding range, the positioning bead 720 is embedded in the positioning groove 730 at the corresponding end, so as to stabilize the position of the square shaft 200 when it is at the end of the sliding range, and improve the hand feeling of pushing or pulling the handle.
[0038] Among them, the mounting hole 700 can be a blind hole structure. If the length of the coil spring is long, the mounting hole 700 can form a through hole on the positioning shaft 600, and even the bottom wall of the mounting hole 700 can be extended to the side wall of the limiting sleeve 300, but it cannot pass through the outer wall of the limiting sleeve 300.
[0039] In this embodiment, the number of the limiting screws 510 and the limiting grooves 500 is two, and they correspond to two opposite side walls of the square shaft 200 respectively; the number of the mounting holes 700, the elastic member 710, the positioning beads 720, and the pair of positioning grooves 730 is two, and they correspond to the other two opposite side walls of the square shaft 200 respectively. In other embodiments, the number of the limiting screws 510 and the limiting grooves 500 can be one, two, or three according to actual needs and correspond to the side walls of the square shaft 200 respectively. In this case, the number of the mounting holes 700, the elastic member 710, the positioning beads 720, and the pair of positioning grooves 730 can also be three, two, or one, and they correspond to the other side walls of the square shaft 200 respectively.
[0040] A bottom plate 800 is installed on the side of the base 100 away from the handle 400, and one side of the bottom plate 800 is flush with the side of the base 100 away from the handle 400. A square shaft hole 810 matching the shape of the square shaft 200 is opened in the middle of the bottom plate 800, and the square shaft 200 passes through the square shaft hole 810, so that the side wall of the square shaft hole 810 can be used to limit the rotation of the square shaft 200. Screws 830 are passed through both ends of the bottom plate 800, and the screws 830 pass through the bottom plate 800 and are screwed into the side of the base 100 away from the handle 400, so that the bottom plate 800 can be detachably installed on one side of the base 100.
[0041] A cylindrical section 220 is provided on the square shaft 200, and the cross section of the cylindrical section 220 is circular, and the diameter of the circular cross section of the cylindrical section 220 is smaller than the side length of the square cross section of the square shaft 200. If the cylindrical section 220 is in the square shaft hole 810, the side wall of the square shaft hole 810 will not be able to limit the rotation of the square shaft 200.
[0042] When the handle 400 is in the short handle state, that is, the limiting sleeve 300 is hidden in the groove 410, at this time, the other sections of the square shaft 200 except the cylindrical section 220 are in the square shaft hole 810, thereby limiting the rotation of the square shaft 200, making the handle 400 unable to rotate and unable to be used, thereby improving the safety of the handle 400 when it is in the short handle state.
[0043] When the handle 400 is in the long handle state, that is, the limiting sleeve 300 extends out of the groove 410, the cylindrical section of the square shaft 200 extends into the square shaft hole 810, so that the side wall of the square shaft hole 810 cannot limit the rotation of the square shaft 200, that is, the square shaft 200 is allowed to rotate relative to the bottom plate 800, thereby ensuring the usability of the handle 400 when it is extended.
[0044] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.
Claims
1. A telescopic handle, characterized in that: include: A base, rotatably connected with a square shaft; A limiting sleeve, arranged on one side of the base; The handle has a groove at one end for the limiting sleeve to slide and embed, and the square shaft is transmission-connected with the handle.
2. The telescopic handle according to claim 1, characterized in that: The handle is provided with a connecting screw, and the connecting screw is threadedly connected to the end of the square shaft.
3. The telescopic handle according to claim 2, characterized in that: The side wall of the square shaft is provided with a limiting groove along the axial direction, and the limiting sleeve is threadedly provided with a limiting screw with one end embedded in the limiting groove, and one end of the limiting screw can slide in the limiting groove.
4. The telescopic handle according to claim 3, characterized in that: A positioning shaft is rotatably connected in the base, a square through hole is opened in the positioning shaft, and the square shaft passes through the square through hole.
5. The telescopic handle according to claim 4, characterized in that: The limiting screw extends into one end of the limiting sleeve and passes through the rotating shaft and then is embedded in the limiting groove. The limiting screw is threadedly connected to the limiting sleeve and / or the limiting screw is threadedly connected to the positioning rotating shaft.
6. The telescopic handle according to claim 4, characterized in that: The positioning shaft is provided with a mounting hole, an elastic member is arranged in the mounting hole, a positioning bead is arranged at one end of the elastic member away from the bottom wall of the mounting hole, the square shaft is provided with positioning grooves at positions corresponding to the two ends of the limiting groove, and the elastic member provides elastic force to embed the positioning bead into the positioning groove.
7. The telescopic handle according to claim 2, characterized in that: A shielding groove is provided on one side of the handle away from the square shaft and corresponding to the position of the connecting screw, and a shielding plate is adapted to be embedded in the shielding groove.
8. The telescopic handle according to claim 2, characterized in that: The bottom wall of the groove is provided with a square hole for the square shaft to be embedded.
9. The telescopic handle according to claim 2, characterized in that: The base is provided with a bottom plate, the bottom plate is provided with a square shaft hole, the square shaft is provided with a cylindrical section that can rotate in the square shaft hole, when the limiting sleeve is embedded in the groove, the position of the square shaft except the cylindrical section is in the square shaft hole, when the limiting sleeve extends out of the groove, the cylindrical section is in the square shaft hole.
10. The telescopic handle according to claim 9, characterized in that: A screw rod is passed through the bottom plate, and the screw rod is threadedly connected to the base.