Transmission lock box mounting structure

Abstract

The utility model discloses a transmission lock box mounting structure, and belongs to the technical field of door and window locks. The screw comprises a head part and a rod part, and the rod part comprises a threaded section and a smooth section; the gasket is arranged at one end, away from the threaded section, of the smooth section; the rotary vane is sleeved on the rod part; the elastic piece is arranged between the rotary piece and the gasket, and the elastic piece provides elastic force enabling the rotary piece to abut against the threaded section. In the dismounting process, even if the screw is excessively rotated, the rotary piece is located at the smooth section after being separated from the threaded section, and the rotary piece cannot be separated from the screw under the limitation of the gasket, so that the convenience of dismounting the transmission box can be improved. Under the action of the elastic piece, the rotary piece is always in a state of abutting against the threaded section, the thread tooth structure of the threaded section cannot be damaged no matter how large the torsion of reversely rotating the screw is, and the rotary piece can be timely and stably screwed into the threaded section when the screw is forwardly rotated, so that repeated use of the mounting structure can be met, and the service life of the mounting structure is prolonged. High reliability and long service life are realized.

Description

Technical Field

[0001] The utility model relates to the technical field of door and window locks, and in particular to a transmission lock box installation structure. Background Art

[0002] The front side of the transmission box body is threaded with a screw, and the screw passes through the transmission box body and is threadedly connected with a rotary vane. A blocking block is provided on the rear side of the transmission box body to limit the rotation angle of the rotary vane. When installing the transmission box body, the transmission box body is embedded in the window sash profile. When the screw is turned, the rotary vane rotates together with the screw and rotates to abut against one side of the blocking block. When the screw is turned further, the rotary vane cannot rotate and moves axially with the screw, so that the rotary vane is pressed against the C-shaped groove of the window sash profile, thereby achieving a tight installation of the transmission box body. However, when the screw is loosened, the rotary vane rotates to a position where it can be disengaged from the C-shaped groove, but is restricted by the blocking block and cannot continue to rotate, so that the transmission box body can be detached from the window sash profile. Since it is impossible to sense when it is in a detachable state, the screw is often prone to excessive rotation and disengagement from the rotary vane, which is not conducive to the convenience of installation. Utility Model Content

[0003] The utility model aims to provide a transmission lock box installation structure to solve one or more technical problems existing in the prior art and at least provide a beneficial choice or create conditions.

[0004] The technical solution adopted to solve the above technical problems is: a transmission lock box installation structure, characterized in that it includes: a screw, including a head and a rod, the rod including a threaded section close to the head and a smooth section away from the head; a gasket, arranged at one end of the smooth section away from the threaded section; a rotary vane, threadedly connected to the threaded section or slidably arranged on the smooth section; an elastic member, arranged between the rotary vane and the gasket, the elastic member providing an elastic force to make the rotary vane contact with the threaded section.

[0005] This technical solution has at least the following beneficial effects: after the mounting structure is installed on the transmission box, the transmission box is embedded in the window sash profile, and because the elastic member presses the vane against one end of the threaded section, the vane can be driven to rotate to a preset angle by turning the screw and be inserted into the C-shaped groove of the window sash profile, and continued rotation of the screw can make the vane press against the C-shaped groove and stabilize the transmission box under the restriction of the blocking part, thereby allowing the transmission box to be installed quickly and accurately. When removing the transmission box, the screw is rotated in the opposite direction, and the screw drives the vane to rotate in the opposite direction and disengage from the C-shaped groove, so that the transmission box can be removed from the window sash profile. In the process of rotating the screw in the opposite direction, even if the screw is over-rotated, the vane will be in the position of the smooth section after disengaging from the threaded section, and under the restriction of the gasket, the vane cannot be disengaged from the screw, thereby improving the convenience of removing the transmission box. Under the action of the elastic member, the vane is always in a state of resisting the thread segment. No matter how great the torque of the screw is when it is rotated in the reverse direction, the thread structure of the thread segment will not be damaged. When the screw is rotated in the forward direction, the vane can be screwed into the thread segment in a timely and stable manner, thereby meeting the multiple uses of the installation structure and having high reliability and service life.

[0006] As a further improvement of the above technical solution, it also includes a transmission box, the head is in contact with the front side of the transmission box, the threaded section is threadedly connected to the transmission box, the gasket is located at the rear side of the transmission box, the rotary vane is located between the transmission box and the gasket, and a blocking portion for limiting the rotary vane is provided at the rear side of the transmission box.

[0007] As a further improvement of the above technical solution, the rotary vane is provided with a slot, and when the blocking portion is embedded in the slot, the length direction of the rotary vane is parallel to the length direction of the transmission box, and when the rotary vane is rotated until the blocking portion contacts the side wall of the selection vane, the length direction of the rotary vane is perpendicular to the length direction of the transmission box. By providing the slot, the rotary vane is perpendicular to each other in the length direction at both ends of the rotation range, thereby ensuring that the rotary vane can easily escape from the C-shaped groove of the window sash profile at both ends of the rotation range or can be firmly embedded in the inner side of the C-shaped groove of the window sash profile, so as to ensure the installation stability of the transmission box.

[0008] As a further improvement of the above technical solution, the transmission box is provided with a square hole, a square nut is embedded in the square hole, and a spring sheet is installed on the side wall of the square hole, and the spring sheet provides elastic force to make the square nut contact the side wall of the square hole. The square nut is used to connect the handle component with the transmission box, and the square nut can be firmly embedded in the square hole by providing the spring sheet, so as to prevent the square nut from being pushed when installing the handle component and affecting the installation of the handle component, thereby ensuring the installation reliability of the transmission box.

[0009] As a further improvement of the above technical solution, the two sides of the spring sheet corresponding to the two ends of the square hole are bent toward the side close to the square hole to form an elastic part, and the side of the elastic part away from the spring sheet is bent toward the side away from the square hole, and the elastic part contacts the side wall of the square nut at the position of the second bend. The elastic part formed by the second bend is V-shaped in cross section, which can facilitate the guiding and embedding of the square nut, and firmly contact the square nut against the side wall of the square hole to restrict the square nut. In addition, the elastic part is easy to process and produce, and the connection with the spring sheet is reliable, which is conducive to long-term and multiple use.

[0010] As a further improvement of the above technical solution, a groove communicating with the square hole is provided at a side wall of the transmission box near the square hole, and the spring piece is embedded in the groove. The groove can facilitate the installation of the spring piece in the transmission box, thereby improving the efficiency of assembly and production.

[0011] As a further improvement of the above technical solution, both sides of the spring sheet are bent to form elastic buckle edges, and the two elastic buckle edges are respectively embedded in the two sides of the embedding groove. The elastic buckle edges can firmly contact the side walls of the embedding groove by their own elastic force, so as to firmly connect the spring sheet and the transmission box. In addition, the elastic buckle edges are formed by bending, which can be easily processed and produced, and the connection with the spring sheet is reliable, which is conducive to long-term and multiple use.

[0012] As a further improvement of the above technical solution, the elastic member is a coil spring, and the coil spring is sleeved on the outer circumference of the smooth section. The elastic force of the coil spring is relatively stable and flexible, which can prevent the vane from wearing the end of the threaded section when the nut is rotated in the reverse direction, and can also provide sufficient elastic force to screw the vane into the threaded section when the nut is rotated in the forward direction, thereby ensuring the stability and reliability of the assembly and disassembly of the transmission box. The coil spring is easy to assemble and has a low cost, which is conducive to improving economic efficiency.

[0013] As a further improvement of the above technical solution, the diameter of the coil spring gradually decreases toward the side close to the gasket, so that the elastic force of the end of the coil spring with a larger diameter on the rotary vane is more stable, ensuring a smoother threaded connection process between the rotary vane and the threaded section.

[0014] As a further improvement of the above technical solution, the smooth section is provided with a stepped groove away from the threaded section, and the gasket is embedded in the stepped groove and then riveted to the smooth section to ensure the stability of the connection between the gasket and the smooth section. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0016] Figure 1 It is an overall schematic diagram of the transmission box in the embodiment of the utility model;

[0017] Figure 2 This is a schematic diagram of the exploded structure of the transmission box in the embodiment of the utility model;

[0018] Figure 3 It is a schematic diagram of the partial cross-sectional structure of the rotary vane in the embodiment of the utility model in the smooth section;

[0019] Figure 4 It is a schematic diagram of the partial cross-sectional structure of the rotary vane in the threaded section in the embodiment of the utility model;

[0020] Figure 5 This is a schematic diagram of the structure when the length direction of the rotating blade is parallel to the length direction of the transmission box in the embodiment of the utility model;

[0021] Figure 6 This is a schematic diagram of the structure when the length direction of the rotating blade is perpendicular to the length direction of the transmission box in the embodiment of the utility model;

[0022] Figure 7 This is a schematic diagram of the structure of the square hole and the embedded groove in the embodiment of the utility model;

[0023] Figure 8 This is a schematic diagram of the structure of the spring piece in the embodiment of the utility model;

[0024] Fig. 9 It is a schematic diagram of the installation structure of the spring piece and the square nut in the embodiment of the utility model.

[0025] 100, screw; 110, head; 120, rod; 121, threaded section; 122, smooth section; 130, gasket; 131, slot; 300, rotary vane; 400, elastic member; 500, transmission box; 510, panel; 520, pull rod; 530, housing; 610, blocking part; 700, rotating shaft; 800, square hole; 810, embedded groove; 820, square nut; 830, spring piece; 831, elastic part; 832, elastic buckle edge. DETAILED DESCRIPTION

[0026] 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.

[0027] 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.

[0028] 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.

[0029] 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.

[0030] Reference Figure 1-6 The transmission lock box installation structure includes a screw 100, a gasket 130 and a rotary vane 300. The screw 100 includes a head 110 with a larger diameter and a rod 120 with a smaller diameter. The rod 120 is divided into two sections. A section of the rod 120 close to the head 110 is set as a threaded section 121, and a section of the rod 120 away from the head 110 is set as a smooth section 122. The threaded section 121 is connected to the end close to the smooth section 122, and the axis of the threaded section 121 coincides with the axis of the smooth section 122. The smooth section 122 is provided with an annular stepped groove on one end face away from the head 110, and the middle part of the gasket 130 is provided with an opening adapted to the side wall of the stepped groove. The gasket 130 is embedded in the stepped groove through the opening, and the gasket 130 is fixed on one end face of the smooth section 122 by riveting, and the axis of the smooth section 122 is perpendicular to the plane of the gasket 130. The rotary vane 300 is located between the gasket 130 and the head 110 . According to different connection states, the rotary vane 300 can be threadedly connected with the threaded section 121 . After the rotary vane 300 is screwed out of the threaded section 121 , it is in a connection state of being sleeved on the smooth section 122 .

[0031] An elastic member 400 is also provided between the vane 300 and the gasket 130. The elastic member 400 is a coil spring, and the diameter of the coil spring gradually decreases from one end to the other end, so that the coil spring is in a frustum shape as a whole. The coil spring is sleeved on the outer periphery of the smooth section 122, and the end of the coil spring with a smaller diameter abuts against the side of the gasket 130 close to the vane 300, and the end of the coil spring with a larger diameter abuts against the side of the vane 300 close to the gasket 130. When the vane 300 is in the smooth section 122, the elastic force of the coil spring can make the side of the vane 300 away from the gasket 130 abut against the end of the threaded section 121 close to the smooth section 122, ensuring that the vane 300 can be stably and reliably screwed back with the threaded section 121.

[0032] The transmission lock box installation structure also includes a transmission box 500. The transmission box 500 includes a panel 510, a pull rod 520 and a housing 530. The panel 510 and the housing 530 are detachably installed by screws. The pull rod 520 is slidably arranged between the panel 510 and the housing 530. The housing 530 is rotatably installed with a rotating shaft 700. The rotating shaft 700 is a gear structure. The pull rod 520 is installed with a rack meshing with the rotating shaft 700. The rotating shaft 700 can be driven to slide by rotating the rotating shaft 700, thereby realizing the transmission function of the transmission lock box.

[0033] The side of the panel 510 away from the pull rod 520 is the front side of the transmission box 500, and the side of the housing 530 away from the pull rod 520 is the rear side of the transmission box 500. A countersunk groove is provided on the front side of the panel 510 for the head 110 to be inserted into. After the head 110 of the screw 100 is inserted into the countersunk groove, the threaded section 121 penetrates the pull rod 520 and the housing 530, so that the smooth section 122, the rotary vane 300 and the gasket 130 are all located at the rear side of the housing 530. The rotary vane 300 is a rectangular structure, and a slot 131 is provided at two diagonal positions. A blocking portion 610 is provided at the rear side of the housing 530 and at positions corresponding to the two slots 131.

[0034] In the initial stage, the rotating blade 300 is in the position of the smooth section 122 and one end of the rotating blade 300 is in contact with the end of the threaded section 121 under the elastic force of the spiral spring. At this time, the length direction of the rotating blade 300 is parallel to the length direction of the transmission box 500, that is, the length direction or sliding direction of the pull rod 520, and the two blocking parts 610 are respectively embedded in the corresponding two slots 131. Since the width of the rotating blade 300 is shorter than the length, the rotating blade 300 and the transmission box 500 can enter the C-shaped groove of the window sash profile as a whole. By rotating the screw 100, the rotating blade 300 can be screwed into the threaded section 121 and drive the rotating blade 300 to rotate. When the rotating blade 300 rotates 90°, one side of the rotating blade 300 contacts the blocking part 610 and cannot continue to rotate. At this time, the length direction of the rotating blade 300 is perpendicular to the length direction of the pull rod 520, so that the two ends of the rotating blade 300 in the length direction are respectively embedded in the two sides of the C-shaped groove. At this time, the screw 100 continues to rotate, and the vane 300 and the threaded section 121 move spirally to move the vane 300 toward the head 110, and finally the vane 300 abuts against the inner walls on both sides of the C-shaped groove, so that the transmission box 500 can be firmly installed on the window sash profile.

[0035] When it is necessary to remove the transmission box 500, by rotating the screw 100 in the reverse direction, after the rotary vane 300 is disengaged from the inner wall of the C-shaped groove, it can be rotated in the reverse direction together with the screw 100 to the position where the slot 131 is embedded in the blocking portion 610 and then stop. At this time, the length direction of the rotary vane 300 is parallel to the length direction of the pull rod 520, and the transmission box 500 can be removed. At this time, even if the installer does not realize or does not stop the operation of rotating the screw 100 in time, when the screw 100 is continued to be rotated in the reverse direction, the rotary vane 300 can at most disengage from the threaded section 121 and enter the smooth section 122. Under the restriction of the gasket 130, the rotary vane 300 cannot be separated from the range of the rod 120, thereby improving the convenience of disassembling the transmission box 500. Moreover, under the action of the elastic member 400, the rotary vane 300 is always in a state of abutting against the threaded segment 121. No matter how great the torque of the screw 100 is when it is rotated in the reverse direction, the thread structure of the threaded segment 121 is not easily damaged. When the screw 100 is rotated in the forward direction, the rotary vane can be screwed into the threaded segment 121 in a timely and stable manner, thereby meeting the multiple uses of the installation structure and having high reliability and service life.

[0036] In addition, in order to improve the installation stability of the transmission box 500, corresponding structures such as screws 100, washers 130, rotating pieces 300 and elastic members 400 are generally provided at both ends of the length direction of the transmission box 500. In other embodiments, the elastic member 400 can also be replaced by an elastic metal sheet.

[0037] Reference Figure 7-9The housing 530 is provided with square holes 800 at both sides near the rotating shaft 700, and the square holes 800 are arranged through the housing 530. A cover plate is installed on one side of the housing 530, and a square through hole is opened on the cover plate corresponding to the position of the square hole 800. A square nut 820 is embedded inside the square hole 800, and a larger square head cover is provided at one end of the square nut 820, and the square head cover abuts against the side of the cover plate away from the housing 530. When the transmission box 500 and the handle are installed, the two screws used to install the handle are screwed into the square nut 820 to relatively fix the transmission box 500 and the handle.

[0038] In order to improve the connection stability between the square nut 820 and the housing 530, a slot 810 is provided at a position of the housing 530 near the square hole 800. The side of the slot 810 near the square hole 800 is connected to the square hole 800, so that the cross section of the slot 810 is T-shaped. A spring piece 830 is embedded and installed in the slot 810. Both sides of the spring piece 830 are bent at least twice to form elastic buckle edges 832. The cross section of the elastic buckle edges 832 is V-shaped. When the spring piece 830 is embedded in the slot 810, the elastic buckle edges 832 are firmly embedded in the two sides of the slot 810 by their own elasticity, thereby ensuring the installation stability of the spring piece 830.

[0039] The elastic part 831 is formed by bending twice in opposite directions at both sides of the spring piece 830 near the two ends of the square hole 800, the first bending is toward the side near the square hole 800, and the second bending is toward the side away from the square hole 800, so that the cross section of the elastic part 831 is also V-shaped. The middle part of the elastic part 831, i.e., the second bending part, protrudes toward the side of the square hole 800, so that the middle part of the elastic part 831 can abut against the side wall of the square nut 820, so that the square nut 820 is firmly embedded in the square hole 800. In addition, the spring piece 830, the elastic part 831 and the elastic buckle edge 832 are integrally arranged, and a notch is arranged between the elastic part 831 and the elastic buckle edge 832, so that the bending process of the elastic part 831 and the elastic buckle edge 832 can be facilitated, thereby improving the qualified rate of finished products.

[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 transmission lock box installation structure, characterized in that: include: A screw, comprising a head and a shank, wherein the shank comprises a threaded section close to the head and a smooth section away from the head; A gasket is arranged at an end of the smooth section away from the threaded section; A rotary vane, threadedly connected to the threaded section or slidably disposed on the smooth section; An elastic member is arranged between the rotating vane and the gasket, and provides an elastic force for causing the rotating vane to contact the threaded segment.

2. A transmission lock box installation structure according to claim 1, characterized in that: It also includes a transmission box, the head abuts against the front side of the transmission box, the threaded section passes through the transmission box, the gasket is located at the rear side of the transmission box, the rotary vane is located between the transmission box and the gasket, and a blocking portion for limiting the rotary vane is provided at the rear side of the transmission box.

3. A transmission lock box installation structure according to claim 2, characterized in that: The rotary vane is provided with a slot. When the blocking portion is embedded in the slot, the length direction of the rotary vane is parallel to the length direction of the transmission box. When the rotary vane is rotated until the blocking portion contacts the side wall of the rotary vane, the length direction of the rotary vane is perpendicular to the length direction of the transmission box.

4. The transmission lock box installation structure according to claim 2, characterized in that: The transmission box is provided with a square hole, a square nut is embedded in the square hole, and a spring sheet is installed on the side wall of the square hole, and the spring sheet provides elastic force to push the square nut against the side wall of the square hole.

5. A transmission lock box installation structure according to claim 4, characterized in that: The two sides of the spring sheet corresponding to the two ends of the square hole are bent toward the side close to the square hole to form an elastic part, and the elastic part is bent away from the side of the spring sheet toward the side away from the square hole. The elastic part conflicts with the side wall of the square nut at the second bending position.

6. A transmission lock box installation structure according to claim 5, characterized in that: A embedding groove communicating with the square hole is provided at a position of a side wall of the transmission box close to the square hole, and the spring piece is embedded in the embedding groove.

7. A transmission lock box installation structure according to claim 6, characterized in that: Both sides of the spring sheet are bent to form elastic buckle edges, and the two elastic buckle edges are respectively embedded in the two sides of the embedding groove.

8. The transmission lock box installation structure according to claim 1, characterized in that: The elastic member is a coil spring, and the coil spring is sleeved on the outer circumference of the smooth section.

9. A transmission lock box installation structure according to claim 8, characterized in that: The diameter of the coil spring gradually decreases toward a side close to the gasket.

10. The transmission lock box installation structure according to claim 1, characterized in that: The smooth section is provided with a stepped groove away from the threaded section, and the gasket is riveted to the smooth section after being embedded in the stepped groove.

Images