Handle

Abstract

The utility model discloses a handle, and belongs to the field of door and window accessories. The device comprises a base shell, a rotating shaft and a sliding block, a limiting groove is formed in the rotating shaft, a shifting block is arranged at the bottom of the sliding block, a shifting groove penetrates through the bottom of the base shell, and a surface cover is installed at the outer bottom of the base shell; and the positioning block is embedded in the base shell, the positioning block abuts against the top of the sliding block, an elastic clamping piece is installed at the top of the sliding block, and clamping grooves are formed in the two sides of the bottom of the positioning block. When the surface cover is opened, the shifting block can be pushed to drive the sliding block to be embedded into the limiting groove so as to achieve the effect of locking the rotating shaft. In the assembling process, the elastic clamping piece can be firstly installed on the positioning block or the sliding block, then the sliding block and the positioning block are sequentially embedded into the base shell, the installation process with simple steps can be achieved, assembling is convenient, therefore, the production efficiency is improved, the overall structure is stable, and operation is reliable; in addition, the positioning block can be limited at the top of the sliding block, the trouble of additionally arranging a limiting structure on the base shell is reduced, the internal shape of the base shell is simplified, and manufacturing is convenient.

Description

Technical Field

[0001] The utility model relates to door and window accessories, in particular to a handle. Background Art

[0002] The handles of doors and windows generally include a base, a rotating shaft installed on the base and a handle connected to the rotating shaft. The doors and windows can be unlocked and locked by holding the handle and rotating the internal rotating shaft. If there are children at home, the doors and windows can be easily opened by children due to accidental touch, which does not provide better protection for the safety of children.

[0003] At present, some handles will have a slide that can be inserted into the rotating shaft installed in the base, one end of the slide extends out of the base for people to operate, and an elastic structure for positioning is installed between the slide and the base. When there are children at home, the slide can be pushed from one end to the other to engage the rotating shaft and lock the rotating shaft, so that the handle cannot be turned, which better protects the safety of children. However, since the elastic structure is located on the inner side wall of the slide and the base, it is difficult to assemble and is not convenient for improving production efficiency. Utility Model Content

[0004] The utility model aims to provide a handle to solve one or more technical problems existing in the prior art and at least provide a beneficial choice or create conditions.

[0005] The technical solution adopted to solve the above-mentioned technical problems is as follows: a handle, characterized in that it includes: a base shell, a rotating shaft is rotatably installed in the base shell; a slider, slidably arranged in the base shell, the rotating shaft is provided with a limiting groove for the end of the slider to be embedded, a shift block is provided at the bottom of the slider, a shift groove is penetrated at the bottom of the base shell for the shift block to extend out, and the base shell is provided with a surface cover that can cover the shift block; a positioning block, embedded and installed in the base shell, the positioning block presses against the top of the slider, one of the top of the slider and the bottom of the positioning block is installed with an elastic clip, and the other is provided with a slot, and the elastic clip can be matched and connected to the slot.

[0006] This technical solution has at least the following beneficial effects: by opening the cover, pushing the dial block to drive the slider to be embedded in the limiting groove, the elastic clip is transferred from being embedded and positioned in the slot at one end to being embedded and positioned in the slot at the other end, thereby stably limiting the rotation of the shaft and achieving the effect of locking the shaft. During assembly, the elastic clip can be first installed on the positioning block or the slider, and then the slider and the positioning block can be embedded and installed in the base shell in sequence, so that a simple installation process can be achieved, which is convenient for assembly, thereby improving production efficiency, and the overall structure is stable and reliable in operation; in addition, the positioning block can also be limited to the top of the slider, reducing the trouble of setting an additional structure for the top of the limiting slider on the base shell, simplifying the internal structure of the base shell, and facilitating manufacturing.

[0007] As a further improvement of the above technical solution, a side pressure strip is provided on the inner side of the base shell, and the side pressure strip is pressed against the top of the positioning block. By embedding the positioning block between the side pressure strip and the slider from one side, the position of the positioning block can be fixed, and the positioning block is fixedly pressed against the position of the top of the slider, which is convenient for the installation of the positioning block and improves the installation efficiency. During assembly, the number of parts is small and the assembly process is simpler. In addition, the side pressure strip can be integrally formed with the base shell, and the manufacturing method of the side pressure strip is simple and the manufacturing cost is low, which can reduce the production cost and improve the economy.

[0008] As a further improvement of the above technical solution, the base shell is slidably provided with an elastic block, an elastic member is connected between the elastic block and the base shell, and the outer side wall of the shaft is provided with a positioning groove for the end of the elastic block to be embedded, and the elastic member presses one end of the elastic block against the outer side wall of the shaft, and the elastic block presses against the top of the positioning block, and the side pressure strip presses against the top of the elastic block. When the shaft rotates to a specific position, the elastic block can fall into the positioning groove under the push of the elastic member for embedded positioning. For example, when the user unlocks and closes the lock, the shaft can quickly fall into the corresponding position, thereby improving the operational touch. When assembling the product, the slider, the elastic card and the positioning block can be embedded and installed in the base shell in sequence, and then the elastic block can be embedded from one side of the side pressure strip to the position between the side pressure strip and the positioning block, thereby limiting the top position of the positioning block, facilitating the installation of the positioning block, and mutually restricting the assembly of the various components, thereby improving the compactness of the internal structure, simplifying the assembly structure and steps, and improving production efficiency.

[0009] As a further improvement of the above technical solution, a roller is rotatably mounted on the elastic block near one end of the rotating shaft, the axis direction of the roller is parallel to the axis direction of the rotating shaft, and the positioning groove is for the roller to be embedded in. The area of ​​the roller in contact with the outer side of the rotating shaft is larger than that of the marble, which can improve the stability of the movement of the marble in contact with the rotating shaft, better improve the tactile feedback to the handle when the rotating shaft is driven to rotate, and improve the comfort of the user.

[0010] As a further improvement of the above technical solution, a clearance groove is provided in the middle of the spring block, the positioning block is in the clearance groove, convex edges are provided on both sides of the positioning block, the spring block is provided with a groove that fits with the convex edge, and the bottom of the spring block presses against the top of the slider. The spring block uses the side wall of the groove to limit the convex edge of the positioning block, which can not only limit the top position of the positioning block, but also limit the position of the two sides of the positioning block, so as to better ensure the stability of the installation of the positioning block. In addition to being limited by the bottom of the positioning block, the top of the slider is also limited by the pressure of the bottom of the spring block, so that the connection between the spring block, the positioning block and the slider is limited, and the structure and the overall structure are more stable and reliable when installed in the base shell; in addition, a clearance groove is provided in the middle of the spring block for the positioning block to accommodate, and the height dimension between the spring block and the positioning block can be reduced without reducing the overall width of the spring block, so that the structure is more compact, the space utilization rate is improved, and the overall base shell is more compact and beautiful.

[0011] As a further improvement of the above technical solution, the side wall of the base shell is provided with a fixing groove for one end of the positioning block to be embedded. On the one hand, the fixing groove can provide a guide for the installation of the positioning block, and the positioning block can be quickly positioned and installed when it is installed, and the bottom wall of the fixing groove can limit the installation depth of the positioning block, providing a positioning function for the installation of the positioning block; on the other hand, the side wall of the fixing groove can limit the two sides of the positioning block, and better ensure the stability of the relative position of the positioning block in the base shell.

[0012] As a further improvement of the above technical solution, the elastic clamp includes a spring and a marble, one of the top of the slider and the bottom of the positioning block is installed with a guide cylinder, and the other is provided with a receiving groove for the guide cylinder to extend into, the receiving groove is provided on the inner wall of the receiving groove, the bottom of the spring is embedded and installed in the guide cylinder, one end of the marble is embedded in the guide cylinder and connected to the top of the spring, and the other end partially protrudes from the surface of the top of the guide cylinder and can be embedded in the corresponding receiving groove. The marble is partially embedded in the corresponding receiving groove, and can be positioned for the two end positions of the slider after movement. The guide cylinder extends into the receiving groove, and the side wall of the receiving groove can limit the relative movement of the guide cylinder, so that the spring and the marble can be better restricted between the positioning block and the slider, and when the slider and the positioning block are worn due to long-term relative movement, the marble is not easy to fall out or shift, so that the quality of long-term use can be improved; in addition, during installation, the restriction of the guide cylinder by the side wall of the receiving groove can assist the marble to be smoothly embedded in the receiving groove, so as to facilitate the assembly connection between the slider and the positioning block.

[0013] As a further improvement of the above technical solution, the guide cylinder is located at the top position of the shift block, and the bottom wall of the hole in the guide cylinder can extend into the shift block, so that a longer spring can be installed in a shorter guide cylinder, thereby improving space utilization.

[0014] As a further improvement of the above technical solution, the overall width of the slider is adapted to the width of the bottom of the base shell. The two sides of the bottom of the base shell can limit the sliding direction of the slider, so that the installation of the slider can be more convenient and the sliding process can be more stable, and there is no need to set an additional structure to limit the sliding direction of the slider, so that the structure of the base shell is simpler and easier to manufacture; in addition, when the limiting groove of the rotating shaft embedded in the end of the slider limits the rotation of the rotating shaft, the rotating shaft pushes the movement of the slider in the opposite direction after being subjected to force, and because both sides of the slider are in conflict with the side walls of the bottom of the base shell, the structure of the slider is more stable and resistant to pressure, and the relative limiting relationship between the slider and the rotating shaft is not easy to be broken. Even if the rotating shaft is locked, even if someone applies a large force to pry the handle, the embedded connection relationship between the slider and the rotating shaft cannot be easily damaged, thereby improving the reliability of the rotating shaft when locked. Even if a child cannot turn the handle and uses his own weight to press the handle downward, the rotating shaft is not easily forced to rotate, thereby better ensuring the safety of the child.

[0015] As a further improvement of the above technical solution, a handle is installed at the bottom of the base shell, and the handle is installed with an elastic ring that presses the cover against the outer bottom of the base shell. The elastic ring can position the cover on the outer bottom of the base shell, and the cover can be opened by overcoming the elastic force of the elastic ring to operate the shift block. The cover is easy to open and close, and can be easily operated. The installation method of the elastic ring is simple and convenient, and can be easily assembled. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] 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:

[0017] Figure 1 It is an exploded schematic diagram of an embodiment of the utility model;

[0018] Figure 2 It is a schematic cross-sectional structure diagram of the first embodiment of the utility model in the vertical direction;

[0019] Figure 3 This is a schematic diagram of the connection structure between the slider and the rotating shaft in the embodiment of the utility model;

[0020] Figure 4 It is a schematic diagram of the cross-sectional structure in another vertical direction of an embodiment of the utility model.

[0021] Base shell 10, rotating shaft 20, cover 30, handle 31, stepped hole 32, bolt 33, mounting tube 34, elastic ring 35, slider 40, limiting groove 41, shift block 42, shift groove 43, chamfer 44, fixing groove 45, side pressure strip 46, positioning block 50, guide tube 51, accommodating groove 52, elastic clamp 60, spring 61, marble 62, clamping groove 63, elastic block 70, elastic member 71, positioning groove 72, roller 73, make way groove 80, convex edge 81, groove 82. DETAILED DESCRIPTION

[0022] 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.

[0023] 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.

[0024] 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.

[0025] 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.

[0026] Reference Figure 1-4 A handle comprises a base shell 10 and a rotating shaft 20, wherein the rotating shaft 20 rotates relative to the base shell 10. A through hole matching one end of the rotating shaft 20 is provided at the bottom of the base shell 10, one end of the rotating shaft 20 extends out of the base shell 10 from the through hole and is provided with a handle 31, a stepped hole 32 is provided in the middle of the rotating shaft 20, a bolt 33 is provided in the stepped hole 32, one end of the bolt 33 passes through the rotating shaft 20 at the bottom of the stepped hole 32 and is threadedly connected with the handle 31, so that the handle can be fixedly installed with the base shell 10.

[0027] The rotating shaft 20 is installed in the middle part of the base shell 10. The inside of the base shell 10 is provided with mounting tubes 34 on both sides of the mounting position of the rotating shaft 20. Bolts and other structures can be inserted into the mounting tubes 34 to fix the base shell 10 on the door and window structure. A slider 40 is slidably installed on the inner bottom of the base shell 10. The slider 40 is located on one side of the rotating shaft 20. The width of the slider 40 is adapted to the width of the inner bottom of the base shell 10, so that the two sides of the slider 40 are respectively in conflict with the inner side wall of the base shell 10 on the corresponding side. An avoidance groove is opened in the middle of the slider 40, so that the slider 40 is U-shaped as a whole. A limiting groove 41 is provided on the outer side of the rotating shaft. The limiting groove 41 is adapted to the two ends of the slider 40. A shift block 42 is provided at the bottom of the slider 40. A shift groove 43 is penetrated at the bottom of the base shell 10, and the shift block 42 extends into the shift groove 43. By pushing the shift block 42 at the outer bottom of the base shell 10, the end of the slider 40 can be pushed to embed into or disengage from the limiting groove 41, so that the slider 40 can be in two positions of locking or unlocking the rotating shaft 20, thereby locking or unlocking the rotation of the rotating shaft 20, thereby achieving the effect of locking or unlocking the rotation of the handle 31.

[0028] A positioning block 50 is embedded and installed inside the base shell 10, and a fixing groove 45 is opened on one side wall of the base shell 10. After one end of the positioning block 50 is embedded from the top to the bottom of the fixing groove 45, one side of the positioning block 50 abuts against the side wall of the fixing groove 45, and the other side abuts against the side wall of the installation tube 34, and the bottom of the positioning block 50 presses against the top of the slider 40, thereby limiting the top position of the slider 40.

[0029] A spring block 70 is slidably mounted in the base shell 10, and the sliding direction of the spring block 70 relative to the base shell 10 is parallel to the sliding direction of the slider 40 relative to the base shell 10. An elastic member 71 is mounted on one side of the spring block 70. The elastic member 71 is a coil spring, one end of which is fixed to one side of the spring block 70, and the other end of which abuts against the side wall of the base shell 10. A roller 73 is rotatably mounted on the end of the spring block 70 away from the coil spring, and the rotation center line of the roller 73 is parallel to the rotation center line of the rotating shaft 20. Two or more positioning grooves 72 are provided on the outer side wall of the rotating shaft 20 as required, and the positioning grooves 72 are adapted to the outer surface of the roller 73, and the surface of the roller 73 partially extending out of the spring block 70 abuts against the outer side surface of the rotating shaft 20. When the rotating shaft 20 is in the initial position, under the action of the coil spring, the roller 73 is embedded in and retained in one of the positioning grooves 72. When the handle is turned to the unlocking position of the door and window, the rotating shaft 20 rotates until the roller 73 is embedded in the other positioning groove 72, thereby realizing the positioning of the rotating shaft 20 at different rotational positions. In other embodiments, the elastic member 71 can be an elastic sheet, one end of which is mounted on one side of the elastic block 70 and the other end is in contact with the side wall of the base shell 10. The elastic force of the elastic sheet is used to provide the elastic block 70 with an elastic force to make the roller 73 contact the outer side of the rotating shaft 20.

[0030] The width of the block 70 matches the width of the base shell 10, and a clearance groove 80 is provided in the middle of the block 70, so that the block 70 is U-shaped as a whole. The positioning block 50 and the mounting tube 34 on the corresponding side are both accommodated in the clearance groove 80, so that the structure is more compact, and the overall structure is more compact and simple. The bottom of the block 70 is provided with grooves 82 on both sides of the clearance groove 80, and convex edges 81 are integrally formed on both sides of the positioning block 50, and the convex edges 81 are adapted to fit with the corresponding grooves 82. When the block 70 is installed in the base shell 10, the side wall of the groove 82 at the bottom of the block 70 contacts the convex edge 81, and the bottom of the block 70 presses against the top of the slider 40, so that the top of the slider 40 is restricted by the positioning block 50 and the bottom of the block 70, and the stability of the movement of the slider 40 is better guaranteed. The inner walls on both sides of the base shell 10 are integrally formed with side pressure strips 46, and the bottom of the side pressure strips 46 presses against the top of the block 70. A side pressure groove matched with the side pressure strip 46 can be opened at the position where the spring block 70 is pressed by the side pressure strip 46, and at least one end of the side pressure groove passes through one side of the spring block 70. The length of the side pressure strip 46 is shorter than the length of the side wall of the installed base shell 10, and the opening length of the base shell 10 where the side pressure strip 46 is not installed is greater than the length of the spring block 70, so that the spring block 70 can be embedded in the base shell 10 from the opening, and the side pressure strip 46 is slidably set in the side pressure groove, so as to achieve the effect of facilitating the installation of the spring block 70.

[0031] The spring block 70 , the elastic member 71 and the corresponding structure can be symmetrically arranged at both ends of the base shell 10 with the vertical plane where the center line of the rotating shaft 20 is located as the symmetry plane, so that the positioning of the rotating shaft 20 can be more stable and reliable.

[0032] A guide cylinder 51 is installed on the top of the slider 40. The guide cylinder 51, the slider 40 and the shift block 42 are integrally formed. A receiving groove 52 is provided at the bottom of the positioning block 50. The guide cylinder 51 extends into the receiving groove 52. The receiving groove 52 allows the guide cylinder 51 to move with the slider 40 within a certain range. A spring 61 is embedded and installed in the guide cylinder 51. A marble 62 is installed at one end of the spring 61 away from the bottom of the guide cylinder 51. The marble 62 partially extends out of the top of the guide cylinder 51 and abuts against the bottom wall of the receiving groove 52. The bottom wall of the receiving groove 52 is provided with a clamping groove 63 at both end positions corresponding to the range of movement of the marble 62 with the slider 40. When the slider 40 is in the two positions of locking or unlocking the rotating shaft 20, the marble 62 can be embedded in the corresponding clamping groove 63 to position the slider 40. In addition, the guide cylinder 51 is located at the top of the shift block 42, and the bottom wall of the hole in the guide cylinder 51 can extend into the shift block 42, so that a longer spring 61 can be installed in a shorter guide cylinder 51, thereby improving space utilization. In addition, the end of the convex edge 81 away from the positioning block 50 can be inclined and extended toward the bottom direction of the base shell 10, and an inclined surface is provided at the connection between the guide cylinder 51 and the slider 40, and the inclined surface is adapted to the inclined bottom of the convex edge 81, so that the installation of the positioning block 50 is easier and the positioning is more accurate.

[0033] The spring 61 and the marble 62 form an elastic clamp 60. In other embodiments, the elastic clamp 60 can also be an elastic arc plate, and the guide cylinder 51 may not be installed on the top of the slider 40. One end of the elastic arc plate is installed on the top of the slider 40, and the other end of the elastic arc plate is bent to form an arc protrusion, which abuts against the bottom wall of the accommodating groove 52. The middle part of the elastic arc plate is curved in an arc shape, so that the elastic arc plate has a certain compression elasticity. When the slider 40 is in the two positions of locking or unlocking the rotating shaft 20, the arc protrusion of the elastic arc plate can be embedded in the corresponding card groove 63 to position the slider 40.

[0034] In other embodiments, the installation position of the guide cylinder 51 can be replaced with the opening position of the receiving groove 52, that is, the receiving groove 52 is opened at the top of the slider 40, the guide cylinder 51 is installed at the bottom of the positioning block 50, the spring 61 and the marble 62 are installed in the guide cylinder 51, and the slot 63 is set on the bottom wall of the receiving groove 52. When the slider 40 is in the two positions of locking or unlocking the rotating shaft 20, the marble 62 can be embedded in the corresponding slot 63 to position the slider 40.

[0035] A cover 30 is rotatably mounted on the outer bottom of the base shell 10. The outer peripheral shape of the cover 30 is the same as that of the base shell 10, making the overall appearance more beautiful. A circular hole is opened in the middle of the cover 30. A positioning cylinder is provided at the outer bottom of the base shell 10. The cover 30 can be sleeved in the positioning cylinder for installation. A positioning ring groove is provided on the side of the cover 30 close to the base shell 10. A positioning ring protrusion is provided at the outer bottom of the base shell 10. The positioning ring protrusion fits with the positioning ring groove, so that the cover 30 can be easily positioned and installed on the outer bottom of the base shell 10. The handle 31 is located on the side of the cover 30 away from the base shell 10, so that when the rotating shaft 20 and the handle 31 are connected by bolts 33, the base shell 10 and the cover 30 can be clamped in the middle, so as to facilitate the assembly of the rotating shaft 20, the base shell 10, the cover 30 and the handle 31.

[0036] An annular groove is provided on one side of the handle 31 close to the face cover 30, and an elastic ring 35 is installed in the annular groove. The two sides of the elastic ring 35 are bent toward one end to form a structure with axial elasticity. The two end faces of the elastic ring 35 in the axial direction are pressed against the face cover 30 and the bottom wall of the annular groove respectively, so that a pressing force can be applied to the face cover 30 to tightly buckle the face cover 30 against the outer bottom of the base shell 10. The two end faces of the elastic ring 35 in the axial direction are both set to be planes, so as to better press against the corresponding face cover 30 and the bottom wall of the annular groove respectively. When the rotation of the handle 31 needs to be locked, the outer bottom of the base shell 10 can be opened by rotating the face cover 30 to expose the shift block 42, so that the internal slider 40 can be driven by pushing the shift block 42 to lock the rotation of the rotating shaft 20.

[0037] The end of the shift block 42 away from the slider 40 does not extend beyond the outer bottom surface of the base shell 10, and the shift groove 43 is provided with chamfers 44 on both sides corresponding to the two end positions of the shift block 42 in the moving direction. The vacant position formed by the chamfers 44 can provide space for the user to operate the shift block 42 without the need for the shift block 42 to extend out of the outer surface of the base shell 10, thereby facilitating the rotation and opening and closing of the cover 30. In addition, the two side walls of the shift groove 43 can limit the moving range of the shift block 42, further limiting the moving range of the slider 40, and better ensuring the stability and reliability of the movement of the slider 40.

[0038] Arc grooves are provided in the middle of both sides of the base shell 10 where the side pressure strips 46 are installed. Both sides of the rotating shaft 20 can be embedded and installed inside the base shell 10 along the corresponding arc grooves, so that the middle position of the rotating shaft 20 can be positioned and installed.

[0039] During assembly, the slider 40 can be first embedded in the bottom of one side of the base shell 10, and then the spring 61 and the marble 62 are successively installed in the guide cylinder 51, and then the positioning block 50 is directly embedded in the base shell 10 along one side of the fixing groove 45, and then the elastic block 70 on one side or both sides together with the pre-installed elastic member 71 are successively embedded in the base shell 10 on the corresponding side, and finally the elastic blocks 70 on both sides are moved away from each other, and the rotating shaft 20 and the matching gasket are embedded in the top of the base shell 10, and the surface cover 30, the elastic member 71, the matching gasket and the handle 31 are penetrated in front and back of the outer bottom of the base shell 10, and then the rotating shaft 20 and the handle 31 are fixed by the bolt 33 to complete the assembly of the whole product. The assembly operation is simple and the process is simple, which can improve the production efficiency of the product and reduce the production cost. It should be noted that the above assembly operation does not limit the characteristics of the structure, and the assembly steps can be adjusted according to the embodiment scheme selected for the actual product.

[0040] 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 handle, characterized in that: include: A base shell, wherein a rotating shaft is rotatably mounted in the base shell; A slider is slidably arranged in the base shell, the rotating shaft is provided with a limiting groove for the end of the slider to be embedded, a shift block is arranged at the bottom of the slider, a shift slot is penetrated at the bottom of the base shell for the shift block to extend, and a surface cover for covering the shift block is installed on the base shell; A positioning block is embedded in the base shell, the positioning block presses against the top of the slider, one of the top of the slider and the bottom of the positioning block is installed with an elastic clip, and the other is provided with a slot, and the elastic clip can be matched and connected to the slot.

2. A handle according to claim 1, characterized in that: A side pressure strip is arranged on the inner side of the base shell, and the side pressure strip is pressed against the top of the positioning block.

3. A handle according to claim 2, characterized in that: The base shell is slidably provided with a spring block, an elastic member is connected between the spring block and the base shell, the outer wall of the rotating shaft is provided with a positioning groove for the end of the spring block to be embedded, the elastic member presses one end of the spring block against the outer wall of the rotating shaft, the spring block presses against the top of the positioning block, and the side pressure strip presses against the top of the spring block.

4. A handle according to claim 3, characterized in that: A roller is rotatably mounted on the elastic block near one end of the rotating shaft, the axial direction of the roller is parallel to the axial direction of the rotating shaft, and the positioning groove is used for the roller to be embedded.

5. The handle according to claim 3, characterized in that: A clearance groove is provided in the middle of the spring block, the positioning block is located in the clearance groove, convex edges are provided on both sides of the positioning block, the spring block is provided with a groove matching with the convex edges, and the bottom of the spring block presses against the top of the slider.

6. The handle according to claim 3, characterized in that: The side wall of the base shell is provided with a fixing groove for embedding one end of the positioning block.

7. The handle according to claim 1, characterized in that: The elastic clamp includes a spring and a marble. One of the top of the slider and the bottom of the positioning block is equipped with a guide cylinder, and the other is provided with a receiving groove for the guide cylinder to extend into. The clamping groove is provided on the inner wall of the receiving groove. The bottom of the spring is embedded in the guide cylinder. One end of the marble is embedded in the guide cylinder and connected to the top of the spring, and the other end partially protrudes from the surface of the top of the guide cylinder and can be embedded in the corresponding clamping groove.

8. The handle according to claim 7, characterized in that: The guide cylinder is at the top position of the shift block.

9. The handle according to claim 1, characterized in that: The overall width of the slider matches the width of the bottom of the base shell.

10. The handle according to claim 1, characterized in that: A handle is installed at the bottom of the base shell, and the handle is installed with an elastic ring for pressing the surface cover against the outer bottom of the base shell.

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