Anti-loose handle

Abstract

The utility model discloses a kind of anti-loose handles, including handle body and nut being installed on shell, shell is equipped with mounting hole, handle body is equipped with stud towards shell outside side, stud is screwed with nut placed in shell inside through mounting hole, further include self-locking piece, self-locking piece is equipped in shell inside, self-locking piece is sleeved on stud, self-locking piece and stud limit cooperation, self-locking piece is equipped with elastic limiting portion towards nut side, corresponding nut is equipped with ratchet groove towards self-locking piece side, after screwing in place of nut and stud, self-locking piece and nut contact, nut or stud rotates in loosening direction, elastic limiting portion and ratchet groove limit position.The utility model is through self-locking piece and nut cooperation, elastic limiting portion and ratchet groove limit position prevent stud and nut screw thread connection from loosening by oneself, handle is firmly installed.In the elastic range of elastic limiting portion, adjust stud and nut screwing position, to facilitate the tightness of handle installation adjustment.

Description

Technical Field

[0001] This utility model relates to the field of lock technology, specifically an anti-loosening handle for use in locks. Background Technology

[0002] Currently, in locks, the handle is mounted on the lock body shell. Since the handle needs to rotate during use, the handle and shell are rotatably connected. Specifically, a stud is located on one side of the handle, which passes through the shell and is threaded into a nut inside the shell. During normal use, the connection between the stud and the nut can easily loosen, causing the handle to wobble. Utility Model Content

[0003] The purpose of this invention is to provide a securely installed anti-loosening handle.

[0004] The purpose of this utility model is achieved as follows.

[0005] An anti-loosening handle includes a handle body and a nut mounted on a housing. The housing has a mounting hole, and the handle body has a stud facing outward from the housing. The stud passes through the mounting hole and is threadedly connected to a nut located inside the housing. The handle also includes a self-locking plate located inside the housing and fitted onto the stud. The self-locking plate and the stud are in a limiting engagement. The self-locking plate has an elastic limiting part facing the nut, and the corresponding nut has a ratchet groove facing the self-locking plate. After the nut and stud are tightened to the correct position, the self-locking plate contacts the nut, and the nut or stud rotates in the loosening direction, with the elastic limiting part and ratchet groove providing the limiting position.

[0006] This invention utilizes a self-locking plate and nut in conjunction, along with an elastic limiting part and ratchet groove to prevent the threaded connection between the stud and nut from loosening on its own, ensuring a secure handle installation. Within the elastic range of the elastic limiting part, the tightening position of the stud and nut can be adjusted to easily regulate the tightness of the handle installation.

[0007] The above technical solution can be further improved as follows.

[0008] Furthermore, the nut has several ratchet grooves near its outer contour, arranged in a circular pattern. This allows the elastic limiting part to engage with a corresponding ratchet groove for positioning at any angle.

[0009] Furthermore, several elastic limiting portions are stamped near the outer contour of the self-locking plate. One end of each elastic limiting portion is connected and fixed to the self-locking plate, and the other end of each elastic limiting portion is bent towards the nut. The self-locking plate is easy to manufacture, the elastic limiting portions are simple to form, and the manufacturing cost is low.

[0010] Furthermore, the self-locking plate has a first through hole at its center for the stud to pass through. The self-locking plate extends a first protrusion into the first through hole, and the corresponding stud has a groove along its outer circumference in the axial direction. The first protrusion is inserted into the groove, and the self-locking plate rotates synchronously with the stud. The self-locking plate rotates synchronously with the handle body, which in turn drives the nut to rotate synchronously, preventing the stud and nut from becoming loose.

[0011] Furthermore, it also includes a first friction plate and a second friction plate fitted onto the stud. The first friction plate and the housing are mutually restrictive, as are the second friction plate and the stud. The first and second friction plates are positioned between the inner side of the housing and the self-locking plate, and they contact each other through their adjacent surfaces. The first and second friction plates facilitate control of the frictional force of the handle body's rotation relative to the housing. Through the engagement of the self-locking plate and the nut, the frictional force is adjusted by loosening or loosening the first and second friction plates, thereby controlling the rotational resistance of the handle body. The first and second friction plates also prevent the self-locking plate from damaging the housing.

[0012] Furthermore, the first friction plate has a second through hole at its center for the stud to pass through, and a second protrusion on its outer periphery. A limiting groove is provided on the inner side of the housing, and the second protrusion is placed in the limiting groove. The first friction plate is easy to position and install.

[0013] Furthermore, a mounting groove is provided on the inner side of the housing, and the limiting groove is provided on the side of the mounting groove. The first friction plate, the second friction plate, and the self-locking plate are all located within the mounting groove. The first friction plate, the second friction plate, and the self-locking plate are easy to install.

[0014] Furthermore, the second friction plate has a third through hole at its center for the stud to pass through. A third protrusion extends from the second friction plate into the third through hole. A groove is provided along the axial direction on the outer circumference of the corresponding stud. The third protrusion is inserted into the groove, and the second friction plate rotates synchronously with the stud. The second friction plate also rotates synchronously with the handle body. There is friction between the second friction plate and the first friction plate.

[0015] This invention utilizes a self-locking plate and nut in conjunction, along with an elastic limiting part and ratchet groove to prevent the threaded connection between the stud and nut from loosening, ensuring a secure handle installation. Within the elastic range of the elastic limiting part, the tightening position of the stud and nut can be adjusted to easily regulate the tightness of the handle installation. The self-locking plate is easy to manufacture, and the elastic limiting part is simple to form, resulting in low manufacturing costs. The first and second friction plates facilitate control of the frictional force causing the handle body to rotate relative to the housing. By adjusting the tightness between the first and second friction plates through the cooperation of the self-locking plate and nut, the rotational resistance of the handle body can be controlled. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of Embodiment 1.

[0017] Figure 2This is a schematic diagram of the exploded structure of Example 1.

[0018] Figure 3 This is a cross-sectional structural diagram of Example 1.

[0019] Figure 4 This is a side view of the self-locking plate and nut mating structure in Example 1.

[0020] Figure 5 This is a schematic diagram of the anti-loosening handle and lock installation structure in Example 1.

[0021] Figure 6 This is a schematic diagram of the anti-loosening handle and lock installation structure in Example 1. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Example 1, see Figure 1-4 As shown, an anti-loosening handle includes a handle body 1 and a nut 6 mounted on a housing 2, as well as a self-locking plate 5, a first friction plate 3, and a second friction plate 4. The handle body 1 has a stud 11 facing outwards from the housing 2, and the stud 11 has a groove 12 along its axial direction on its outer periphery. The housing 2 has a mounting hole 20, and an mounting groove 21 on its inner side. The mounting groove 21 has two limiting grooves 22 on its side, and the bottom surface of the mounting groove 21 communicates with the mounting hole 20.

[0024] The first friction plate 3, the second friction plate 4, and the self-locking plate 5 are sequentially located within the mounting groove 21. The first friction plate 3 has a second through hole 30 at its center for the stud 11 to pass through, and two second protrusions 31 on its outer periphery, which are positioned within corresponding limiting grooves 22. The second friction plate 4 has a third through hole 40 at its center for the stud 11 to pass through, and a third protrusion 41 extends from the second friction plate 4 into the third through hole 40.

[0025] The self-locking plate 5 has a first through hole 50 at its center for the stud 11 to pass through. A first protrusion 51 extends from the self-locking plate 5 into the first through hole 50. The self-locking plate 5 has at least one elastic limiting part 52 on the side facing the nut 6. Specifically, four elastic limiting parts 52 are uniformly stamped near the outer contour of the self-locking plate 5. One end of the elastic limiting part 52 is connected and fixed to the self-locking plate 5, and the other end of the elastic limiting part 52 is bent towards the nut 6.

[0026] The nut 6 has a ratchet groove 61 on the side facing the self-locking plate 5. Specifically, the nut 6 has a plurality of ratchet grooves 61 near its outer contour, and the ratchet grooves 61 are arranged in a ring.

[0027] After passing through the mounting hole 20, the stud 11 passes sequentially through the second through hole 30 of the first friction plate 3, the third through hole 40 of the second friction plate 4, and the first through hole 50 of the self-locking plate 5, and is threadedly connected to the nut 6. The third protrusion 41 of the second friction plate 4 and the first protrusion 51 of the self-locking plate 5 are both inserted into the groove 12 of the stud 11, causing the second friction plate 4 and the self-locking plate 5 to rotate synchronously with the stud 11, that is, synchronously with the handle body 1. In this embodiment, the nut 6 is tightened by rotating clockwise. The nut 6 is rotated clockwise on the stud 11 until it contacts the ratchet groove 61 and the elastic limiting part 52. By pressing the elastic limiting part 52, the nut 6 compresses the self-locking piece 5, the second friction piece 4, and the first friction piece 3 within the mounting groove 21. The tighter the nut 6 is tightened, the greater the friction between the second friction piece 4 and the first friction piece 3, and the greater the resistance the handle body 1 needs to overcome to rotate. Thus, within the elastic deformation range of the elastic limiting part 52, the tightness of the nut 6 can be adjusted (only slightly adjusted from loose to tight) to regulate the friction between the second friction piece 4 and the first friction piece 3. When the handle body 1 rotates clockwise, the elastic limiting part 52 and the side wall of the ratchet groove 61 abut against each other, limiting the rotation. The handle body 1 then rotates the nut 6 clockwise as well. This prevents the nut 6 from detaching from the stud 11, resulting in a more secure overall connection.

[0028] See Figure 5 and Figure 6 The diagram illustrates the installation structure of an anti-loosening handle and a common door lock. The handle body 1 has a first positioning part on the side facing the housing 2, and the housing 2 has a second positioning part on the side facing the handle body 1. A torsion spring 7 is provided between the handle body 1 and the housing 2, with both ends of the torsion spring 7 fixed by the first and second positioning parts respectively. In this embodiment, the first positioning part is formed by a first annular wall 13 with a first notch 14, and the second positioning part is formed by a second annular wall 23 with a second notch 24. The second annular wall 23 is partially inserted into the first annular wall 13, and the torsion spring 7 is placed between the second annular wall 23 and the first annular wall 13. One end of the torsion spring 7 is engaged in the first notch 14, and the other end of the torsion spring 7 is engaged in the second notch 24.

[0029] During use, since the housing 2 is fixed to the door, the handle body 1 rotates relative to the housing 2. After the handle body 1 rotates clockwise, the torsion spring 7 drives the handle body 1 to rotate counterclockwise to reset.

[0030] The anti-loosening handle of this utility model can also be installed on windows or sliding doors. The anti-loosening handle is linked to the lock cylinder of the window or sliding door. There is no reset structure between the anti-loosening handle and the window or sliding door. The rotation and reset of the anti-loosening handle are all completed by the user manually.

Claims

1. A locking handle, comprising a handle body (1) and a nut (6) mounted on a housing (2), the housing (2) having a mounting hole (20), the handle body (1) having a stud (11) facing outward from the housing (2), the stud (11) passing through the mounting hole (20) and threadedly connected to the nut (6) located inside the housing (2), characterized in that, It also includes a self-locking piece (5), which is located inside the housing (2). The self-locking piece (5) is sleeved on the stud (11). The self-locking piece (5) and the stud (11) are in a limiting fit. The self-locking piece (5) has an elastic limiting part (52) on the side facing the nut (6). The corresponding nut (6) has a ratchet groove (61) on the side facing the self-locking piece (5). After the nut (6) and the stud (11) are tightened to the position, the self-locking piece (5) and the nut (6) come into contact. The nut (6) or the stud (11) rotates in the loosening direction, and the elastic limiting part (52) and the ratchet groove (61) limit the movement.

2. The anti-loosening handle according to claim 1, characterized in that, The nut (6) has several ratchet grooves (61) near its outer contour, and the ratchet grooves (61) are arranged in a ring.

3. The anti-loosening handle according to claim 2, characterized in that, The self-locking piece (5) is stamped into several elastic limiting parts (52) near the outer contour. One end of the elastic limiting part (52) is connected and fixed to the self-locking piece (5), and the other end of the elastic limiting part (52) is bent toward the nut (6).

4. The anti-loosening handle according to claim 3, characterized in that, The self-locking piece (5) has a first through hole (50) at its center for the stud (11) to pass through. The self-locking piece (5) extends a first protrusion (51) into the first through hole (50). The corresponding stud (11) has a groove (12) on its outer periphery along the axial direction. The first protrusion (51) is inserted into the groove (12), and the self-locking piece (5) rotates synchronously with the stud (11).

5. The anti-loosening handle according to claim 1, characterized in that, It also includes a first friction plate (3) and a second friction plate (4) fitted onto the stud (11). The first friction plate (3) and the housing (2) are in a limiting fit, and the second friction plate (4) and the stud (11) are in a limiting fit. The first friction plate (3) and the second friction plate (4) are placed between the inner side of the housing (2) and the self-locking plate (5). The first friction plate (3) and the second friction plate (4) are in contact through adjacent surfaces.

6. The anti-loosening handle according to claim 5, characterized in that, The first friction plate (3) has a second through hole (30) in the center for the stud (11) to pass through. The first friction plate (3) has a second protrusion (31) on its outer periphery. The corresponding housing (2) has a limiting groove (22) on its inner side. The second protrusion (31) is placed in the limiting groove (22).

7. The anti-loosening handle according to claim 6, characterized in that, The inner side of the housing (2) is provided with a mounting groove (21), and the side of the mounting groove (21) is provided with the limiting groove (22). The first friction plate (3), the second friction plate (4) and the self-locking plate (5) are all located in the mounting groove (21).

8. The anti-loosening handle according to claim 5, characterized in that, The second friction plate (4) has a third through hole (40) in the center for the stud (11) to pass through. The second friction plate (4) extends a third protrusion (41) into the third through hole (40). The corresponding stud (11) has a groove (12) along the axial direction on its outer periphery. The third protrusion (41) is inserted into the groove (12). The second friction plate (4) rotates synchronously with the stud (11).

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