Multipurpose handle with anti-loosening function

Abstract

The utility model discloses a multi-purpose lever handle with an anti-loosening function, which comprises a handle seat, at least two first fixing holes, at least two second fixing holes and at least one locking device, the plastic bottom cover is provided with at least two second fixing holes, the second fixing holes are in one-to-one correspondence with the first fixing holes, and the second fixing holes are communicated with the first fixing holes; the outer diameter of the self-tapping screw is larger than the diameter of the second fixing hole. When the self-tapping screw is drilled in, due to the fact that the diameter of the second fixing hole is smaller than the outer diameter of the self-tapping screw, the self-tapping screw can drill threads on the plastic cover, the threads on the plastic bottom cover are tightly attached to the threads on the self-tapping screw, and large friction force can be generated when the two threads of plastic are matched with the two threads of metal. The friction force is far larger than the friction force of matching of the two metal threads, and therefore the problem of screw loosening caused by too small thread friction force can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of door and window fittings, in particular to a multi-purpose handle with an anti-loosening function. Background Art

[0002] As an essential component in the hardware system of aluminum doors and windows, the handle is widely used. Moreover, it is generally the only exposed component for opening and closing the window sash, and its importance is self-evident. Therefore, the functional requirements for the handle and the quality requirements under frequent use conditions are quite high. The handle base is usually provided with through holes. When installing the handle, self-tapping screws are inserted into the through holes, and then the self-tapping screws are twisted by tools. The self-tapping screws will tap threaded holes in the window sash. The self-tapping screws and the window sash are directly fixed through the friction generated by the cooperation of two metal threads to achieve the fixation of the handle base and the window sash.

[0003] In practical applications, for the handles on doors and windows that need to be frequently opened and closed, due to the frequent rotation of the handles and the continuous vibration of the window sashes under the action of wind, the fixing screws of the handles are prone to looseness, which is not conducive to the normal use of the handles. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is: to provide a multi-purpose handle with an anti-loosening function to solve one or more technical problems existing in the prior art, and at least provide a beneficial choice or create conditions.

[0005] The solution of the utility model to solve its technical problem is:

[0006] A multi-purpose handle with an anti-loosening function, comprising:

[0007] A handle base, the handle base is provided with at least two first fixing holes;

[0008] A plastic bottom cover, the plastic bottom cover is provided with at least two second fixing holes, the second fixing holes correspond to the first fixing holes one by one, and the second fixing holes communicate with the first fixing holes;

[0009] Self-tapping screws, the outer diameter of the self-tapping screws is larger than the diameter of the second fixing holes.

[0010] Through the above technical solution, when the self-tapping screws are drilled in, since the diameter of the second fixing holes is smaller than the outer diameter of the self-tapping screws, the self-tapping screws will tap threads in the plastic cover, and the threads on the plastic bottom cover will tightly fit with the threads on the self-tapping screws. The cooperation of the two threads of plastic and metal will generate a large frictional force, which is much greater than the frictional force generated by the cooperation of two metal threads, thereby avoiding the problem of screw loosening caused by too small thread frictional force.

[0011] As a further improvement of the above technical solution, six first fixing holes and six second fixing holes are respectively provided, and the six first fixing holes are symmetrically arranged at both ends of the handle base.

[0012] As a further improvement of the above technical solution, it further includes an upper cover which is rotatably connected to the handle base and is used to block the first fixing holes.

[0013] Through the above technical solution, the upper cover can block the first fixing holes and the self-tapping screws, thereby improving the aesthetic appearance of this multi-purpose handle.

[0014] As a further improvement of the above technical solution, it further includes a second elastic member which is used to make the upper cover always tend to approach the handle base; a clamping strip is provided on the periphery of the upper cover, and a clamping groove is provided on the periphery of the handle base, and the clamping strip is clamped and matched with the clamping groove.

[0015] Through the above technical solution, by setting the clamping groove and the clamping strip, the upper cover can be limited in position to prevent the upper cover from accidentally rotating relative to the handle base, thereby preventing the first fixing holes on the handle base from being exposed, and ensuring the aesthetic degree of this multi-purpose handle. The second elastic member makes the upper cover always tend to approach the handle base so that the clamping groove and the clamping strip can maintain the clamping connection, thereby preventing the upper cover from accidentally rotating relative to the handle base.

[0016] As a further improvement of the above technical solution, it further includes a handle body which is rotatably connected to the handle base.

[0017] As a further improvement of the above technical solution, it further includes a handle locking component, and the handle locking component includes:

[0018] A rotating disk, a plurality of locking slots are provided on the periphery of the rotating disk, and the rotating disk is fixed to the handle body;

[0019] An installation bracket which is fixedly installed on the handle base, and a locking member and a first elastic member are installed on the installation bracket. The locking member is slidably connected to the installation bracket, and the first elastic member makes the locking member always tend to approach the rotating disk, and the locking member is clamped and matched with the locking slots.

[0020] As a further improvement of the above technical solution, the number of the locking members and the first elastic members is two each. The two locking members and the two first elastic members are respectively centrosymmetric about the central axis of the rotating disk. The locking members and the first elastic members are arranged in one-to-one correspondence, and the number of the locking slots is set to four, and the four locking slots are circumferentially and equidistantly arranged around the central axis of the rotating disk.

[0021] As a further improvement of the above technical solution, it further includes a fork structure, the fork structure is slidably connected to the handle base, and the fork structure is provided with a rack; a gear is fixedly installed on the rotating disk, the gear meshes with the rack, and the plastic bottom cover is provided with a fork through groove for the fork structure to pass through.

[0022] As a further improvement of the above technical solution, it further includes a square shaft structure, the square shaft structure and the fork structure are interchangeable components, the gear is provided with a square shaft insertion hole, the square shaft structure is inserted and matched with the square shaft insertion hole, and the plastic bottom cover is provided with a square shaft through groove for the square shaft structure to pass through.

[0023] As a further improvement of the above technical solution, the plastic bottom cover protrudes with a plurality of insertion posts, the handle base is provided with a plurality of insertion slots, the insertion posts and the insertion slots correspond one by one, and the insertion posts are inserted and matched with the insertion slots.

[0024] The beneficial effect of the utility model is that it can avoid the problem of screw loosening caused by too small thread friction.

[0025] The utility model is used in the technical field of door and window fittings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly describe the drawings required for the description of the embodiments. Obviously, the described drawings are only a part of the embodiments of the present utility model, rather than all the embodiments. Those skilled in the art can also obtain other design solutions and drawings based on these drawings without creative efforts.

[0027] Figure 1 is the exploded structural schematic diagram of the embodiment of the present utility model;

[0028] Figure 2 is the overall structural schematic diagram of the embodiment of the present utility model;

[0029] Figure 3 is the sectional structural schematic diagram of the embodiment of the present utility model;

[0030] Figure 4 is the exploded structural schematic diagram of the embodiment of the present utility model after replacing the fork structure with the square shaft structure.

[0031] In the figure, 100 is the handle body; 200 is the handle base; 210 is the first fixing hole; 220 is the clamping groove; 300 is the upper cover; 310 is the second elastic member; 400 is the plastic bottom cover; 410 is the second fixing hole; 420 is the plug post; 430 is the fork through groove; 440 is the square shaft through groove; 500 is the self-tapping screw; 600 is the handle locking assembly; 610 is the rotating disk; 611 is the handle connecting shaft; 612 is the handle fixing screw; 613 is the locking groove; 614 is the gear; 615 is the square shaft jack; 620 is the mounting bracket; 621 is the first elastic member; 622 is the locking member; 700 is the fork structure; 710 is the rack; 800 is the square shaft structure. Detailed implementation mode

[0032] The following will clearly and completely describe the concept, specific structure and technical effects of the present utility model in combination with the embodiments and the drawings, so as to fully understand the purpose, features and effects of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present utility model. In addition, all the connection / connection relationships mentioned in the text do not refer only to the direct connection of components, but refer to the more optimal connection structure that can be formed by adding or reducing connection accessories according to the specific implementation situation. Each technical feature in the present invention can be combined interactively without conflicting with each other.

[0033] In the description of the present utility model, it should be understood that for the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0034] In the description of the present utility model, the meaning of several is one or more, the meaning of multiple is two or more, and understandings such as greater than, less than, exceeding, etc. do not include the present number, and understandings such as above, below, within, etc. include the present number. If the first and second are described only for the purpose of distinguishing technical features, they should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0035] Refer to Figures 1 to 4 , a multi-purpose handle with an anti-loosening function, mainly composed of a handle body 100, a handle base 200, an upper cover 300, a plastic bottom cover 400, and self-tapping screws 500.

[0036] Both ends of the handle base 200 are respectively provided with first fixing holes 210, and the first fixing holes 210 are through holes. In this embodiment, the number of the first fixing holes 210 is set to six, and the number of the first fixing holes 210 on each end of the handle base 200 is set to three. The multiple first fixing holes 210 are symmetrically arranged at both ends of the handle base 200. In other embodiments, the number of the first fixing holes 210 can also be set to two, four, eight, etc. Those skilled in the art can select the number of the first fixing holes 210 according to actual needs.

[0037] The upper cover 300 is rotatably connected to the handle base 200, and the upper cover 300 is used to block the first fixing holes 210 on the handle base 200.

[0038] A clamping strip (not shown in the figure) is convexly arranged on the peripheral edge of the upper cover 300, and a clamping groove 220 is formed on the edge of the handle base 200. The clamping groove 220 is in clamping fit with the clamping strip. By providing the clamping groove 220 and the clamping strip, the upper cover 300 can be limited to prevent the upper cover 300 from accidentally rotating relative to the handle base 200, so as to avoid the exposure of the first fixing holes 210 on the handle base 200 and ensure the aesthetic degree of this multi-purpose handle.

[0039] A second elastic member 310 is arranged between the upper cover 300 and the handle body 100. Specifically, the second elastic member 310 is arranged in a spring structure. Both ends of the second elastic member 310 are respectively abutted against the upper cover 300 and the handle body 100. The second elastic member 310 makes the upper cover 300 always have a tendency to approach the handle base 200, so that the clamping groove 220 and the clamping strip can maintain the clamping connection, thereby preventing the upper cover 300 from accidentally rotating relative to the handle base 200.

[0040] The handle body 100 is rotatably connected to the handle base 200.

[0041] A handle locking component 600 is installed inside the handle base 200. Specifically, the handle locking component 600 includes a rotating disk 610 and a mounting bracket 620.

[0042] The mounting bracket 620 is installed inside the handle base 200, and a first elastic member 621 and a locking member 622 are installed inside the mounting bracket 620.

[0043] Specifically, the locking member 622 is set as a steel ball. The locking member 622 is slidably connected to the mounting bracket 620, and the locking member 622 can slide radially along the mounting bracket 620 relative to the bracket.

[0044] Specifically, the first elastic member 621 is arranged in a spring structure. In other embodiments, the first elastic member 621 can also be arranged in other common elastic structures such as a reed. Those skilled in the art can select the structure of the first elastic member 621 according to actual needs.

[0045] Both ends of the first elastic member 621 are respectively abutted against the inner wall of the mounting bracket 620 and the outer peripheral surface of the locking member 622, and the first elastic member 621 makes the locking member 622 always have a tendency to approach the center of the mounting bracket 620.

[0046] Specifically, in this embodiment, the numbers of the first elastic members 621 and the locking members 622 are both set to two respectively, and the two first elastic members 621 and the two locking members 622 are symmetrically arranged about the center of the mounting bracket 620. In other embodiments, the numbers of the first elastic members 621 and the locking members 622 can also be both set to one respectively, and those skilled in the art can select the numbers of the first elastic members 621 and the locking members 622 according to actual needs.

[0047] The rotating disc 610 is rotatably connected to the handle base 200, and the rotating disc 610 is arranged on the side of the mounting bracket 620 away from the handle body 100. The rotating disc 610 is protrudingly provided with a handle connecting shaft 611, and the handle connecting shaft 611 passes through the mounting bracket 620, the handle base 200 and the upper cover 300 and then is inserted into the handle body 100. Subsequently, the rotating disc 610 is connected to the handle body 100 through a handle fixing screw 612 to realize the relative fixation between the handle body 100 and the rotating disc 610.

[0048] Four locking slots 613 are formed on the circumferential edge of the rotating disc 610, and the four locking slots 613 are arranged equidistantly along the circumference of the rotating disc 610, so that the central angle between two adjacent locking slots 613 is 90 degrees, thereby restricting the rotation angle of the handle body 100. When the rotation angle of the handle body 100 approaches 90 degrees, the locking slot 613 and the locking member 622 will guide the handle body 100 to a certain extent, so that the handle body 100 automatically rotates to 90 degrees.

[0049] Specifically, in this embodiment, a gear 614 is fixedly installed at one end of the rotating disc 610 away from the handle body 100, and the gear 614 will rotate along with the rotating disc 610.

[0050] Specifically, in this embodiment, the rotating disc 610 and the gear 614 are respectively provided with a square shaft insertion hole 615.

[0051] This multi-purpose handle further includes a fork structure 700, and the fork structure 700 is slidably installed on the handle base 200.

[0052] The fork structure 700 is fixedly provided with a rack 710, and the rack 710 meshes with the gear 614. When the gear 614 rotates, the rack 710 makes a linear motion, thereby driving the fork structure 700 to move linearly to cooperate with the lock core to lock and unlock the doors and windows.

[0053] This multi-purpose handle also includes a square shaft structure 800. The square shaft structure 800 and the fork structure 700 are interchangeable components. The square shaft structure 800 is inserted and matched with the square shaft socket 615 to drive the rotation of the square shaft structure 800 when the rotating disk 610 rotates, and cooperate with the lock core to lock and unlock the doors and windows. The multi-purpose handle of this solution replaces the fork structure 700 with the square shaft structure 800, and other parts do not need to be replaced, that is, the fork handle and the square shaft handle can be switched to meet the requirements of different usage occasions.

[0054] The plastic bottom cover 400 is arranged on the side of the handle seat 200 close to the window sash, and the plastic bottom cover 400 is arranged inside the handle seat 200. The plastic bottom cover 400 is provided with a plurality of second fixing holes 410. The number of the second fixing holes 410 is the same as that of the first fixing holes 210, both are six, and the second fixing holes 410 and the first fixing holes 210 are arranged in one-to-one correspondence, so that after the plastic bottom cover 400 and the handle seat 200 are installed, the second fixing holes 410 communicate with the first fixing holes 210.

[0055] The plastic bottom cover 400 is protruded with a plurality of plugging columns 420. The handle seat 200 is provided with a plurality of plugging grooves. The first fixing holes 210 communicate with the plugging grooves. The second fixing holes 410 penetrate through the plugging columns 420. The plugging grooves and the plugging columns 420 are arranged in one-to-one correspondence, and the plugging grooves and the plugging columns 420 are inserted and matched. The plugging grooves and the plugging columns 420 can position the plastic bottom cover 400 to prevent the plastic bottom cover 400 from moving greatly relative to the handle seat 200 during the installation process.

[0056] The plastic bottom cover 400 is provided with a fork through groove 430 for the fork structure 700 to pass through and a square shaft through groove 440 for the square shaft structure 800 to pass through. The fork through groove 430 and the square shaft through groove 440 communicate with each other.

[0057] The self-tapping screw 500 passes through the second fixing hole 410 and the first fixing hole 210. The diameter of the second fixing hole 410 is smaller than the outer diameter of the self-tapping screw 500. When the self-tapping screw 500 drills in, since the diameter of the second fixing hole 410 is smaller than the outer diameter of the self-tapping screw 500, the self-tapping screw 500 will drill threads in the plastic bottom cover 400. The threads on the plastic bottom cover 400 tightly fit with the threads on the self-tapping screw 500. The two-thread cooperation between plastic and metal will generate a large frictional force, which is much greater than the frictional force of the two-metal thread cooperation, thus avoiding the problem of screw loosening caused by too small thread frictional force.

[0058] The assembly steps of this multi-purpose handle are as follows: Install two locking parts 622 and two first elastic parts 621 into the mounting bracket 620, then place them into the slot of the handle base 200. Next, install the gear 614 shaft, washer and upper cover 300. Then, place the second elastic part 310 into the gap between the handle base 200 and the upper cover 300. Then install the handle body 100. Pass the handle fixing screw 612 through the gear 614, the rotating disk 610 and the handle connecting shaft 611 and then screw it into the threaded hole on the handle body 100. Then place the fork structure 700 into the handle base 200 so that the rack 710 of the fork structure 700 engages with the gear 614. Finally, install the plastic bottom cover 400 to complete the installation. After assembly, as Figure 2 shown.

[0059] Figure 2 The assembled handle in

[0060] is the fork structure 700 handle. When the handle body 100 is rotated, it drives the fork structure 700 to move up and down, and then drives the connecting rod of the window sash to move up and down or horizontally through the fork structure 700. Figure 4 shown. When the handle body 100 is rotated, the square shaft rotates accordingly. After the square shaft rotates, it drives the gear 614 in the lock box to rotate, and the lock box drives the connecting rod to move up and down or horizontally. For the multi-purpose handle of this solution, only one part needs to be replaced to realize the switching between the fork handle and the square shaft handle, which can meet the requirements of different usage occasions.

[0061] The installation process of this multi-purpose handle is as follows: After drilling holes at the position corresponding to the handle installation on the door and window, rotate the upper cover 300 to expose the fixing holes, and then use the self-tapping screw 500 to pass through the handle base 200 and then fix it on the door and window. When the self-tapping screw 500 passes through the plastic bottom cover 400, since the second fixing hole 410 of the plastic bottom cover 400 is smaller than the outer diameter of the screw, the self-tapping screw 500 will cut the second fixing hole 410 of the plastic bottom cover 400 to form threads until the screw is completely locked. At this time, the threads formed on the plastic bottom cover 400 tightly fit together with the threads on the self-tapping screw 500, and the two threaded parts will generate a large frictional force, so as to avoid the screw from loosening during long-term use. After the multi-purpose handle of this solution is installed, as Figure 3 shown.

[0062] The preferred embodiments of the present invention have been specifically described above, but the present invention is not limited to the described embodiments. Those skilled in the art can also make various equivalent variations or substitutions without departing from the spirit of the present invention, and these equivalent variations or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A multi-purpose handle with a function of preventing loosening, characterized in that: Comprising: A handle base, wherein the handle base is provided with at least two first fixing holes; A plastic bottom cover, wherein the plastic bottom cover is provided with at least two second fixing holes, the second fixing holes correspond to the first fixing holes one by one, and the second fixing holes communicate with the first fixing holes; Self-tapping screws, the outer diameter of the self-tapping screws being larger than the diameter of the second fixing holes.

2. The multi-purpose handle with a loosening prevention function according to claim 1, characterized in that: Six first fixing holes and six second fixing holes are respectively provided. The six first fixing holes are symmetrically arranged at both ends of the handle base.

3. The multi-purpose handle with a loosening prevention function according to claim 1, characterized in that: It further includes an upper cover, the upper cover is rotatably connected to the handle base, and the upper cover is used to block the first fixing holes.

4. A multi-purpose handle with a loosening prevention function according to claim 3, characterized in that: It further includes a second elastic member, the second elastic member is used to make the upper cover always have a tendency to approach the handle base; a clamping strip is provided on the periphery of the upper cover, and a clamping groove is provided on the periphery of the handle base, and the clamping strip is clamped and matched with the clamping groove.

5. A multi-purpose handle with an anti-loosening function according to claim 1, characterized in that: It further includes a handle body, and the handle body is rotatably connected to the handle base.

6. The multi-purpose handle with a loosening prevention function according to claim 5, characterized in that: It further includes a handle locking component, and the handle locking component includes: A rotating disc, a plurality of locking grooves are provided on the periphery of the rotating disc, and the rotating disc is fixed to the handle body; An installation bracket, the installation bracket is fixedly installed on the handle base, a locking member and a first elastic member are installed on the installation bracket, the locking member is slidably connected to the installation bracket, the first elastic member makes the locking member always have a tendency to approach the rotating disc, and the locking member is clamped and matched with the locking groove.

7. A multi-purpose handle with a loosening prevention function according to claim 6, characterized in that: The number of the locking members and the first elastic members is two. The two locking members and the two first elastic members are respectively centrosymmetric about the central axis of the rotating disc. The locking members and the first elastic members are arranged in one-to-one correspondence. The number of the locking grooves is set to four, and the four locking grooves are circumferentially and equidistantly arranged around the central axis of the rotating disc.

8. A multi-purpose handle with a loosening prevention function according to claim 6, characterized in that: It further includes a fork structure, the fork structure is slidably connected to the handle base, and the fork structure is provided with a rack; a gear is fixedly installed on the rotating disc, the gear meshes with the rack, and the plastic bottom cover is provided with a fork through groove for the fork structure to pass through.

9. A multi-purpose handle with an anti-loosening function according to claim 8, characterized in that: It further includes a square shaft structure, the square shaft structure and the fork structure are mutually replaceable components, the gear is provided with a square shaft insertion hole, the square shaft structure is inserted and matched with the square shaft insertion hole, and the plastic bottom cover is provided with a square shaft through groove for the square shaft structure to pass through.

10. A multi-purpose handle with a loosening prevention function according to claim 1, characterized in that: The plastic bottom cover protrudes with a plurality of insertion posts, and the handle base is provided with a plurality of insertion grooves. The insertion posts correspond to the insertion grooves one by one, and the insertion posts are inserted and matched with the insertion grooves.

Images