Lock cylinder square shaft mounting structure of general handle

Abstract

A gap filling piece comprises a filling panel and a filling foot, the filling foot penetrates through a mounting hole and extends into a movable gap, a buckling block on the filling foot abuts against a lock cylinder body for limiting, the surface of the mounting hole is covered with the filling panel, and it is ensured that the two ends of the gap filling piece are fixed; according to the door and window lock, the lock bar is stably installed in the installation hole of the lock cylinder, the gap problem existing when the lock bar and the lock tongue are connected is effectively solved through the gap filling piece, shaking of the handle in the using process is reduced, the stability and using reliability of the door and window lock are improved, the design allows the lock cylinders of different specifications to be matched, the universality of the structure is improved, and the practicability is high. In the assembling process, a worker needs to hold the gap filling piece to fill the panel for installation through fingertips, the gap filling piece can be rapidly and conveniently installed in the installation hole, falling and losing are avoided, and the assembling efficiency is greatly influenced.

Description

Technical Field

[0001] The utility model relates to the field of door and window handles, and particularly relates to a lock core square shaft installation structure of a general handle. Background Technique

[0002] In the prior art, a handle is composed of a handle, a rotating square shaft and a base. The rotating square shaft is movably connected to the base through a positioning ring, and the rotating square shaft is also connected to the handle at the same time. The base fixes the handle on the door and window. The rotating square shaft is inserted into a square hole on the lock to drive the lock tongue to move. For example, the Chinese invention patent with the publication number CN115898146A discloses an anti-lock type door and window handle structure, which includes a first handle and a second handle respectively rotatably arranged on a first mounting seat and a second mounting seat, a lock bar and a locking component arranged in the first mounting seat. The locking component includes a first lock piece synchronously rotating with the first handle, a second lock piece synchronously rotating with the lock bar and a lock block. A concave portion is provided on a part of the outer circumference of the lock block facing the first lock piece. The lock block forms a first sliding portion and a second sliding portion on both sides of the concave portion respectively. When the second handle is lifted, the second lock piece is driven to rotate through the lock bar. The second lock piece pushes the lock block to rotate through the first sliding portion, so that the second sliding portion of the lock block approaches the first lock piece. The second sliding portion restricts the first handle from pressing down to drive the first lock piece to rotate in the reverse direction. When the second handle is pressed down, the second lock piece is driven to rotate in the reverse direction through the lock bar. The second lock piece pushes the second sliding portion to make the lock block rotate in the reverse direction. The second sliding portion moves away from the first lock piece. The second sliding portion allows the first handle to press down to drive the first lock piece to rotate in the reverse direction and drive the lock bar to rotate. As Figure 9 shown, the first handle and the second handle are linked through a lock bar, and the lock bar passes through the lock tongue to drive the lock tongue to open and close. Door and window locks have various sizes and models. When selecting a door and window lock, due to the differences in installation profiles and reserved hole positions, manufacturers often equip different specifications of lock tongues. However, in order to improve the adaptability of the product to the lock tongue, current manufacturers change the installation hole in the lock tongue from a square hole to a rectangular hole, so that the lock bar can have a space for front and back adjustment in the installation hole, which is convenient for adapting to the installation of multiple specifications of lock cores. For example, in an installation environment with a profile specification of 12 mm and a reserved hole distance of 58 mm, a lock tongue with a specification of 70-72 will be equipped. The lock bar is installed in the installation hole of the lock tongue and has a movable gap of ±2 mm. If this movable gap is not filled, the door lock will shake left and right during use, affecting the normal use of the handle lock.

[0003] In the prior art, for example, a Chinese utility model patent with the publication number CN205063532U discloses an anti-loosening handle, which includes a base and a handle grip. A through hole is opened at the center of the base. A rotating wheel that can rotate therein is installed in the through hole. The rotating wheel passes through the through hole and is connected to the handle grip. A square shaft is installed at the center of the rotating wheel. A clamping groove is provided at the outer end of the rotating wheel. A elastic sheet adapted to the clamping groove is installed on the base. A convex portion is formed by the middle part of the elastic sheet protruding outward. The convex portion abuts tightly in the clamping groove to clamp the rotating wheel in the base. This handle replaces the spring and ball in the traditional structure with an elastic sheet. The convex portion of the elastic sheet abuts tightly in the clamping groove, and the bottom and both side edges of the clamping groove are subjected to the pressure of the convex portion of the elastic sheet, so that the clamping force received by the rotating wheel during rotation is tighter, making the rotation of the rotating wheel smoother. At the same time, it is not easy to loosen when stationary, improving the stability and quality of the product. At the same time, when someone rotates the handle outside the door, the elastic sheet will generate a prompt sound when rubbing against the rotating wheel, thus prompting the household inside the door that someone is opening the door, improving the anti-theft effect of this handle.

[0004] In the above technical solution, an installation hole for installing a square shaft is opened at the center of the rotating wheel. A limiting groove is provided on the side wall of the installation hole. A tightening member is installed in the limiting groove. When the square shaft is installed in the installation hole, the tightening member tightly fixes the square shaft. However, the structure of this tightening member is too small. It is necessary to first place the tightening member in the limiting groove and then install the square shaft. During the assembly process, the worker needs to hold the tightening member with fingertips for installation, and it is easy to drop or lose the tightening member, greatly affecting the assembly efficiency. Summary of the Invention

[0005] The technical problem to be solved by the present utility model is to provide a lock core square shaft installation structure for a general handle, which is applicable to locks such as magnetic locks, extremely narrow locks, and flat door locks, aiming at the deficiencies of the above prior art.

[0006] To achieve the above object, the present utility model provides the following technical solution: A lock core square shaft installation structure for a general handle, which includes a lock core body, a square shaft, and a gap filling member. An installation hole for the square shaft to pass through is opened in the lock core body. There is an activity gap between the square shaft and the installation hole. The gap filling member includes a filling panel, a filling hole opened on the filling panel corresponding to the installation hole, and at least 1 filling foot extending towards the installation hole at the filling hole. A buckling block bent outwards is provided on the filling foot. One end of the gap filling member, the filling panel, covers the surface of the installation hole, and the filling foot at the other end passes through the installation hole so that the buckling block abuts against the lock core body for limiting. The square shaft passes through the installation hole and the filling hole, and the filling foot is arranged in the activity gap.

[0007] With the above technical solution, the gap filling member includes a filling panel and filling feet. The filling feet pass through the mounting holes and extend into the moving gap, and the fastening blocks thereon abut against and limit the lock core body. Also, the filling panel covers the surface of the mounting holes, ensuring that both ends of the gap filling member are fixed and stably installed in the mounting holes of the lock core. By using the gap filling member, the gap problem existing when the lock bar is connected to the lock tongue is effectively solved, thereby reducing the wobbling during the use of the handle, improving the stability and reliability of the door and window lock, and enhancing the versatility of the door and window lock. During assembly, workers only need to hold the filling panel of the gap filling member with their fingertips for installation, and they can quickly and conveniently install the gap filling member into the mounting holes, avoiding dropping and loss, which greatly affects the assembly efficiency.

[0008] The above-mentioned lock core square shaft installation structure of a general handle can be further set as: at least one limiting groove is provided on the side of the mounting hole, the fastening block is correspondingly engaged with the limiting groove, the filling feet have flexibility, and apply a force to the fastening block to move in the direction of the limiting groove. The filling feet at one end of the gap filling member pass through the mounting hole and make the fastening block engage in the limiting groove.

[0009] With the above technical solution, the engagement setting of the fastening block and the limiting groove utilizes the cooperation principle of surface and surface. When the filling feet have flexibility, the fastening block is closely fitted with the limiting groove under the elastic action, ensuring the stability of the square shaft during the installation process and use, enhancing the installation stability of the door and window lock, avoiding the shedding or displacement of the gap filling member, and further improving the reliability of the installation structure.

[0010] The above-mentioned lock core square shaft installation structure of a general handle can be further set as: a deep groove is provided in the limiting groove, and a bayonet portion is provided at the end of the fastening block for engaging and connecting with the deep groove. The deep groove gradually deepens along the direction from the mounting hole to the deep groove.

[0011] With the above technical solution, the design of the gradually deepening deep groove imitates the wedge principle. The bayonet portion at the end of the fastening block cooperates with the deep groove. When the filling feet are subjected to a force, the fastening block will be further pushed into the deep groove, thereby achieving a more tight locking, providing a more firm locking effect, making the installation of the door and window lock more stable, and reducing the possibility of displacement caused by vibration or external force.

[0012] The above-mentioned lock core square shaft installation structure of a general handle can be further set as: the number of the limiting grooves is 2, and they are respectively arranged at the two radial ends of the mounting hole.

[0013] With the above technical solution, the radial symmetric setting of the limiting grooves enables users to install the gap filling member with a single filling foot on both the front and back sides, improving the assembly efficiency.

[0014] The above-mentioned installation structure of the square shaft of the lock core of a general handle can be further set as follows: the number of the limiting grooves is 4, and they are respectively arranged at both ends of the axial and radial directions of the installation hole.

[0015] Adopting the above technical solution, four limiting grooves are arranged at both ends of the axial and radial directions of the installation hole. After such setting, when the user installs the gap filling parts of the two filling feet, they can be installed on both the front and back sides, improving the assembly efficiency.

[0016] The above-mentioned installation structure of the square shaft of the lock core of a general handle can be further set as follows: the number of the filling feet is 2, and they are respectively arranged at both ends of the filling hole, and the buckling blocks at both ends are respectively arranged in the opposite direction at the ends of the corresponding filling feet.

[0017] Adopting the above technical solution, the setting of the two filling feet utilizes the balance principle in mechanics. The buckling blocks at both ends are arranged in the opposite direction, making the force acting on the square shaft more uniform, reducing the local stress concentration, thereby prolonging the service life of the handle. A more balanced force distribution and stability control are beneficial to improving the load-bearing capacity and durability of the structure.

[0018] The above-mentioned installation structure of the square shaft of the lock core of a general handle can be further set as follows: the filling hole is a square hole.

[0019] Adopting the above technical solution, the design of using a square hole as the filling hole simplifies the shape and manufacturing process of the filling feet, facilitates the realization of automated production, improves the production efficiency, and is also convenient for installation and replacement operations, and is more convenient for the positioning and installation of the square shaft.

[0020] The present invention will be further described below with reference to the accompanying drawings. Description of the Drawings

[0021] Figure 1 It is a three-dimensional schematic diagram of Embodiment 1 of the present invention.

[0022] Figure 2 It is Figure 1 an exploded view.

[0023] Figure 3 It is a three-dimensional schematic Figure 2 .

[0024] Figure 4 It is a cross-sectional schematic diagram and a partial enlarged view of the lock core of Embodiment 1 of the present invention.

[0025] Figure 5 It is a three-dimensional schematic diagram of Embodiment 2 of the present invention.

[0026] Figure 6 It is Figure 5 an exploded view.

[0027] Figure 7 This is a three-dimensional schematic diagram of Embodiment 3 of the present utility model.

[0028] Figure 8 This is a three-dimensional schematic diagram of Embodiment 4 of the present utility model.

[0029] Figure 9 This is a three-dimensional schematic diagram of the gap filler in Embodiment 3 of the present utility model.

[0030] Figure 10 This is a three-dimensional schematic diagram of the gap filler in Embodiment 4 of the present utility model.

[0031] Figure 11 This is a three-dimensional schematic diagram of Embodiment 5 of the present utility model.

[0032] Figure 12 This is a three-dimensional schematic diagram of Embodiment 6 of the present utility model.

[0033] Figure 13 This is the structural principle of the embodiment of the present utility model Figure 1 。

[0034] Figure 14 This is the structural principle of the embodiment of the present utility model Figure 2 。

[0035] Figure 15 This is the structural principle of the embodiment of the present utility model Figure 3 。

[0036] Figure 16 This is the structural principle of the embodiment of the present utility model Figure 4 。 Embodiment

[0037] Embodiment 1: As Figures 1-4As shown in the figure, a mounting structure for the square shaft of a lock core of a general handle includes a lock core body 1, a square shaft 2, and a gap filling member. An installation hole 11 for the square shaft 2 to pass through is provided in the lock core body 1. There is an active gap a between the square shaft 2 and the installation hole 11. The gap filling member includes a filling panel 3, a filling hole 31 provided on the filling panel 3 corresponding to the installation hole 11, and two filling feet 32 provided at the filling hole 31 and extending towards the installation hole 11. A fastening block 321 bent outward is provided on the filling foot 32. One end of the filling panel 3 of the gap filling member covers the surface of the installation hole 11. After the other end of the filling foot 32 passes through the installation hole 11, the fastening block 321 abuts against the lock core body 1 for limiting. The square shaft 2 passes through the installation hole 11 and the filling hole 31, and the filling feet 32 are arranged in the active gap a to fill the installation hole 11, preventing the subsequent displacement and shaking of the square shaft 2 in the installation hole 11. Among them, one limiting groove 12 is provided at each of the axial and radial ends of the side of the installation hole 11, a total of 4 limiting grooves 12, which facilitates the installation of the gap filling member on both the front and back sides. A deep groove 121 is provided in the limiting groove 12. The end of the fastening block 321 is provided with a bayonet portion 322 that cooperates and engages with the deep groove 121. The deep groove 121 gradually deepens along the direction from the installation hole 11 to the deep groove 121. The filling foot 32 has flexibility and applies a force to the fastening block 321 to move towards the limiting groove 12. The distance between the two filling feet 32 is smaller than the inner diameter of the installation hole 11, and the fastening blocks 321 are respectively arranged in the opposite direction at the ends of the corresponding filling feet 32 and are obliquely arranged along the direction from the fastening block 321 to the filling panel 3. During assembly, the worker needs to hold the filling panel 3 of the gap filling member with fingertips for installation. When the obliquely arranged fastening blocks 321 enter the installation hole 11, they can tighten each other, and then when they reach the position of the limiting groove 12, they can elastically reset and cooperate with the fastening blocks 321 to be fastened. The length of the filling foot 32 is set to match the depth of the installation hole 11. After the fastening block 321 is fastened, the filling panel 3 also closely adheres to the lock core body 1, realizing stable and convenient assembly. In this embodiment 1, the square pin 2 is arranged in the middle of the installation hole 11 after installation, with active gaps a at both ends. At this time, a structure with two filling feet 32 needs to be selected for installation to eliminate the active gap a, and the stability of the installation connection is enhanced through the cooperation between the limiting groove 12, the deep groove 121 and the fastening block 321, the bayonet portion 322.

[0038] Embodiment 2: As Figure 5 , Figure 6 shown, compared with Embodiment 1 in this Embodiment 2, the active gap a between the square pin 2 and the installation hole 11 is set at the end far from the profile. At this time, only a structure with a single filling foot 32 needs to be selected for installation to eliminate the active gap a. The abutment of a single filling foot 32 is equivalent to the accumulation of two filling feet 32. The limiting groove 32 only needs to be provided at the radial two ends of the installation hole 11, and the stability of the installation connection is enhanced through the cooperation between the limiting groove 12, the deep groove 121 and the fastening block 321, the bayonet portion 322.

[0039] Example 3: As Figure 7 , Figure 9 shown, this Example 3 is a structure with a single filling foot 32. After the filling foot 32 passes through the mounting hole 11, it can be directly positioned and installed with the limiting groove 12 on the surface of the lock core body 1 through the buckling block 321 that bends outward, without the need to additionally set the deep groove 121, and is applicable to the use environment with low installation strength.

[0040] Example 4: As Figure 8 , Figure 10 shown, the difference between this Example 4 and Example 3 is that it is changed to a structure with two filling feet 32, and it is suitable for the installation environment where the square pin 2 is arranged in the middle of the mounting hole 11 after installation, and the moving gap a is at both ends.

[0041] Example 5: As Figure 11 shown, this Example 5 is a structure with a single filling foot 32. Since the mounting hole 11 is a square hole structure, after the filling foot 32 passes through the mounting hole 11, it can be directly positioned and installed with the surface of the lock core body 1 through the buckling block 321 that bends outward, without the need to additionally set the limiting groove 12 and the deep groove 121, and is suitable for the use environment with low installation strength, and this structure is ineffective for drilling holes in the lock core, reducing costs.

[0042] Example 6: As Figure 12 shown, the difference between this Example 6 and Example 5 is that it is changed to a structure with two filling feet 32, and it is suitable for the installation environment where the square pin 2 is arranged in the middle of the mounting hole 11 after installation, and the moving gap a is at both ends.

[0043] As Figure 13 shown, the principle of the lock core square shaft installation structure of the general handle of the present utility model is as follows:

[0044] The specification length of the profile 4 is A, the reserved hole diameter length is B, and the lock core specification length is C, where A + B = C;

[0045] The profile specifications include 08, 09, 10, 12, 13, 14, 16, 18 and other specifications. Currently, the most commonly used specifications in the market are 12, 13, 14, and the general lock core specifications are 44 - 46, 48 - 50, 58 - 60, 62 - 64, 66 - 68, 70 - 72, 74 - 76, 83 - 85 and other specifications;

[0046] For example, when A is 12 and B is 58, C is 12 + 58 = 70; when A is 13 and B is 58, C is 13 + 58 = 71; when A is 14 and B is 58, C is 13 + 58 = 72. These are the specifications of the three profiles. Usually, lock cores of specifications 70, 71, and 72 are required. When using the universal lock core of the present utility model, a universal lock core with a specification of 70 - 72 can be selected alone. Just install the corresponding gap filling parts according to the different profiles.

[0047] As Figure 13 , Figure 14 shown, at this time A is 12, B is 58, and a universal lock core with a specification of 70 - 72 is required. The installation hole 11 is set to 8 * 10, and the square shaft 2 is set to 8 * 8. In this way, the square shaft 2 has a movable gap a of ±2 mm in the installation hole 11. At this time, C = 12 + 58. Therefore, after the square shaft 2 is installed in the installation hole 11, the square shaft 2 will be set at one end of the installation hole 11 close to the profile 4. At this time, there is a movable gap a of 2 mm between the square shaft 2 and the other side of the installation hole 11. At this time, select a gap filling part with a single filling foot 32 with a thickness of 2 mm. Hold the filling panel 3 of the gap filling part and install it into the right side of the installation hole 11, and the buckling block 321 is snap-fitted and installed with the lock core body 1. Then install the square shaft 2 to complete the installation. This installation method is applicable to Embodiment 2, Embodiment 3, and Embodiment 5;

[0048] As Figure 13 , Figure 15 shown, at this time A is 13, B is 58, and a universal lock core with a specification of 70 - 72 is required. The installation hole 11 is set to 8 * 10, and the square shaft 2 is set to 8 * 8. In this way, the square shaft 2 has a movable gap a of ±2 mm in the installation hole 11. At this time, C = 13 + 58. Therefore, after the square shaft 2 is installed in the installation hole 11, the square shaft 2 will be set in the middle position of the installation hole 11. At this time, there is a movable gap a of 1 mm between the square shaft 2 and both ends of the installation hole 11. At this time, select a gap filling part with two filling feet 32 with a thickness of 1 mm. Hold the filling panel 3 of the gap filling part and install it into the right side of the installation hole 11, and the buckling block 321 is snap-fitted and installed with the lock core body 1. Then install the square shaft 2 to complete the installation. This installation method is applicable to Embodiment 1, Embodiment 4, and Embodiment 6;

[0049] As Figure 13 , Figure 16As shown, at this time, A is 14 and B is 58. A general lock core with a specification of 70-72 is required. The installation hole 11 is set to 8*10, and the square shaft 2 is set to 8*8. In this way, the square shaft 2 has a movable gap a of ±2 mm in the installation hole 11. At this time, C = 13 + 58. Therefore, after the square shaft 2 is installed in the installation hole 11, the square shaft 2 will be arranged at the end of the installation hole 11 away from the profile 4. At this time, there is a movable gap a of 2 mm between the square shaft 2 and the other side of the installation hole 11. At this time, the square shaft 2 is at the rightmost side of the installation hole 11. In this way, the front end of the lock core body 1 has abutted against the profile 4, and the rear end is limited by the square shaft 2. At this time, there is no need to install a gap filling piece and it can be used stably.

Claims

1. A lock core square shaft mounting structure for a universal handle, comprising a lock core body, a square shaft and a gap filling member, wherein a mounting hole for the square shaft to pass through is provided in the lock core body, and a movable gap is provided between the square shaft and the mounting hole, characterized in that: The gap filling piece includes a filling panel, a filling hole opened on the filling panel and arranged corresponding to the mounting hole, and at least one filling foot arranged at the filling hole and extending in the direction of the mounting hole, the filling foot is provided with a snap-fit ​​block bent with the outside, the filling panel cover at one end of the gap filling piece is arranged on the surface of the mounting hole, and the filling foot at the other end passes through the mounting hole so that the snap-fit ​​block and the lock core body are restrained, the square shaft passes through the mounting hole and the filling hole, and the filling foot is arranged in the movable gap.

2. The lock core square shaft installation structure of a universal handle according to claim 1, characterized in that: At least one limiting groove is provided on the side of the mounting hole, and the snap-fit ​​block is arranged to be correspondingly engaged with the limiting groove. The filling foot is flexible and exerts a force on the snap-fit ​​block to move in the direction of the limiting groove. After the filling foot at one end of the gap filling piece passes through the mounting hole, the snap-fit ​​block is engaged in the limiting groove.

3. The lock core square shaft installation structure of a universal handle according to claim 2, characterized in that: A deep groove is arranged in the limiting groove, and a snap-fit ​​portion for engaging with the deep groove is arranged at the end of the buckling block, and the deep groove gradually deepens in the direction from the mounting hole to the deep groove.

4. The lock core square shaft installation structure of a universal handle according to claim 2, characterized in that: The number of the limiting grooves is 2, and they are respectively arranged at the radial ends of the mounting hole.

5. The lock core square shaft installation structure of a universal handle according to claim 2, characterized in that: The number of the limiting grooves is 4, and they are respectively arranged at both ends of the mounting hole in the axial direction and the radial direction.

6. A lock core square shaft installation structure of a universal handle according to any one of claims 1 to 5, characterized in that: The number of the filling feet is 2, and they are respectively arranged at the two ends of the filling hole, and the buckle blocks at the two ends are respectively arranged in reverse at the ends corresponding to the filling feet.

7. A lock core square shaft installation structure of a universal handle according to any one of claims 1 to 5, characterized in that: The filling hole is a square hole.

Images