Angle-fixable rotary clamping fastener

Abstract

The utility model relates to an angle-fixable rotary clamping fastener, which relates to the technical field of edge protection connecting devices, and comprises a first fastener, a second fastener is arranged on one side of the first fastener, and an angle control mechanism for determining the rotation angle of the first fastener and the second fastener is arranged between the first fastener and the second fastener; the angle control mechanism comprises a limiting ring wheel arranged on the first fastener, a limiting circular groove is formed in the limiting ring wheel, the second fastener is provided with a control circular gear matched with the limiting circular groove, the first fastener is provided with a first circular groove, a fixed rotating shaft is arranged in the first circular groove, and the second fastener is provided with a second circular groove. A movable rotating shaft matched with the fixed rotating shaft is arranged in the second circular groove, and an angle limiting assembly matched with the control circular gear is arranged in the angle control mechanism. Through the unique structural design, the installation quality and the use safety of the edge protection facility can be effectively improved, and the high-standard requirement of modern building construction is met.

Description

Technical Field

[0001] The utility model relates to the technical field of edge protection connection devices, in particular to a rotatable buckle with a fixed angle. Background Art

[0002] In construction, especially during high-altitude and edge operations, safety protection is a crucial link. To ensure the safety of construction workers, edge protection facilities such as safety railings and guard nets are usually set up. These protection facilities need to be fixed to the building structure through connectors to provide sufficient strength and stability.

[0003] Traditional edge protection connectors are usually designed with a fixed-angle structure and cannot flexibly adjust the installation angle of the protection facilities according to actual construction needs. This fixed structure is difficult to adapt to different installation requirements in some complex construction environments, resulting in low installation efficiency of the protection facilities and potential safety hazards. In addition, during long-term use of traditional connectors, due to environmental factors, loosening or deformation may occur, thereby reducing the reliability of the protection facilities.

[0004] In recent years, with the continuous development of construction technology, higher requirements have been put forward for the installation flexibility and reliability of edge protection facilities. The construction site environment is complex and changeable, and connectors that can flexibly adjust the angle are needed to adapt to different construction needs and ensure the stability after installation.

[0005] How to solve the above technical problems is the subject faced by the utility model. Summary of the Invention

[0006] To solve the deficiencies of the prior art, the utility model provides a rotatable buckle with a fixed angle that is reasonably designed, safe and reliable. By the rotational connection of the first fastener and the second fastener, and using an angle control mechanism to determine and control the rotation angle between the two fasteners, the precise fixation of the connection angle of the steel pipe is realized.

[0007] The technical solution adopted by the utility model to solve its technical problems is: a rotatable buckle with a fixed angle, as shown in Figures 1 to 4 A rotatable buckle with a fixed angle includes a first fastener. One side of the first fastener is provided with a second fastener that is rotationally connected to the first fastener, and an angle control mechanism is arranged between the first fastener and the second fastener to determine the rotation angle of the first fastener and the second fastener;

[0008] The angle control mechanism includes a limiting ring wheel provided on the first fastener. A limiting circular groove is formed on the limiting ring wheel. The second fastener is provided with a control circular gear that cooperates with the limiting circular groove. The first fastener is provided with a first circular groove coaxially arranged with the limiting circular groove. A fixed rotating shaft is arranged in the first circular groove. The second fastener is provided with a second circular groove that cooperates with the control circular gear. A movable rotating shaft that cooperates with the fixed rotating shaft is arranged in the second circular groove. And an angle limiting component that cooperates with the control circular gear is arranged in the angle control mechanism.

[0009] Furthermore, the angle limiting component includes limiting tooth grooves evenly formed on the inner layer of the limiting ring wheel along the circumferential direction of the limiting ring wheel. A number of limiting tooth units are evenly arranged along the circumferential direction of the limiting ring wheel on the control circular gear.

[0010] One end of the fixed rotating shaft close to the movable rotating shaft is provided with a movable cavity. A sliding column located in the movable cavity is arranged on the movable rotating shaft. And a limiting screw that cooperates with the fixed rotating shaft and / or the movable rotating shaft is arranged on the first fastener and / or the second fastener.

[0011] When the rotation angle is determined, the control circular gear is located in the limiting ring wheel, and the limiting teeth are located in the limiting tooth grooves.

[0012] Preferably, two structural designs of the limiting tooth units are provided, specifically as follows:

[0013] First, the limiting tooth unit includes a tooth part arranged on the control circular gear, and the tooth part has a clearance fit with the limiting tooth groove.

[0014] Second, the limiting tooth unit includes a limiting sliding groove formed along the radial direction of the limiting ring wheel. An extrusion part is arranged in the limiting sliding groove. An inclined extrusion part that cooperates with the extrusion part is arranged on the movable rotating shaft. During use, one end of the extrusion part is in contact with the extrusion part, and the other end of the extrusion part is provided with contact with the limiting tooth groove.

[0015] In the second type of limiting tooth unit, preferably, two structural designs of the extrusion part are provided, as follows:

[0016] First, the extrusion part includes an extrusion rod. One end of the extrusion rod is in contact with the extrusion part, and the other end of the extrusion rod is provided with contact with the limiting tooth groove.

[0017] Second, the extrusion member includes an extrusion sleeve that cooperates with the limit sliding groove. One end of the extrusion sleeve is provided with an extrusion block that cooperates with the oblique extrusion portion. The other end of the extrusion sleeve is provided with a limit block, and an extrusion spring is arranged in the extrusion sleeve. The two ends of the extrusion spring are respectively in contact with the extrusion block and the limit block.

[0018] Furthermore, the first fastener includes a fixed fastener for connecting with the second fastener. The limiting ring wheel is arranged on the fixed fastener. An active fastener is movably connected to the fixed fastener on the fixed fastener, and a connecting screw rod is rotatably connected to the active fastener on the fixed fastener. A connecting plate is arranged on the active fastener. The connecting plate is provided with a connecting notch that cooperates with the connecting screw rod. An extrusion nut that cooperates with the connecting plate is arranged on the connecting screw rod; and a clamping space for fixing the steel pipe is formed between the fixed fastener and the active fastener.

[0019] The structure of the second fastener is the same as that of the first fastener.

[0020] The utility model provides an angle-fixable rotary fastener, and the rotation angle between the first fastener and the second fastener is adjustable through an angle control mechanism. This design allows construction workers to flexibly adjust the installation angle of the protection facility according to actual needs, adapt to different construction environments and complex installation positions, thereby improving the flexibility and adaptability of construction.

[0021] The utility model controls the precise cooperation between the circular gear and the limit tooth groove by setting an angle limit component, ensuring that the fastener can be firmly locked after rotating to a specified angle. This structural design effectively avoids the angle deviation or loosening of the protection facility caused by vibration or external force during use, greatly improving the stability and safety after installation.

[0022] The structural design of the fixed rotating shaft and the movable rotating shaft in the utility model is simple, and the angle adjustment and locking operations are convenient. Construction workers can complete the installation and adjustment without using complex tools. This convenient operation method not only improves the construction efficiency, but also reduces the operation difficulty and reduces the human error during the construction process.

[0023] The utility model ensures the firm connection of the fastener and the stable support of the protection facility through designs such as limit screws and extrusion members. Whether in high-altitude operations or complex construction environments, the fastener can provide a higher safety protection effect and reduce the construction safety risk.

[0024] The angle control mechanism and the limit component designed in the present utility model both adopt reasonable mechanical structures, which can maintain stable performance during long-term use and are not easily affected by external environmental factors. This durable design extends the service life of the fastener, reduces the need for frequent replacement and maintenance, and thus reduces the construction cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a three-dimensional structural schematic diagram of the present utility model from the first perspective.

[0026] Figure 2 It is an exploded schematic diagram of the present utility model.

[0027] Figure 3 It is an enlarged structural schematic diagram of part A of the present utility model.

[0028] Figure 4 It is a three-dimensional structural schematic diagram of a preferred embodiment of the extrusion member of the present utility model.

[0029] Among them, the reference signs in the drawings are: 100, the first fastener; 110, the fixed fastener; 111, the first circular groove; 120, the connecting screw; 130, the extrusion nut; 140, the connecting plate; 150, the connecting notch; 160, the movable fastener; 200, the second fastener; 201, the second circular groove; 300, the angle control mechanism; 310, the limiting ring gear; 320, the limiting circular groove; 330, the control circular gear; 331, the limiting tooth groove; 340, the limiting tooth assembly; 341, the tooth member; 342, the extrusion member; 3421, the extrusion sleeve; 3422, the extrusion block; 3423, the limiting block; 3424, the extrusion spring; 350, the fixed rotating shaft; 351, the movable cavity; 360, the movable rotating shaft; 361, the sliding column; 370, the limiting screw. SPECIFIC EMBODIMENT

[0031] See Figures 1 to 4 As shown, a rotatable fastener with a fixed angle includes a first fastener 100. A second fastener 200 rotatably connected to the first fastener 100 is provided on one side of the first fastener 100, and an angle control mechanism 300 for determining the rotation angles of the first fastener 100 and the second fastener 200 is provided between the first fastener 100 and the second fastener 200;

[0032] The angle control mechanism 300 includes a limiting ring wheel 310 provided on the first fastener 100. A limiting circular groove 320 is formed on the limiting ring wheel 310. The second fastener 200 is provided with a control circular gear 330 that cooperates with the limiting circular groove 320. The first fastener 100 is provided with a first circular groove 111 coaxially arranged with the limiting circular groove. A fixed rotating shaft 350 is arranged in the first circular groove 111. The second fastener 200 is provided with a second circular groove 201 that cooperates with the control circular gear 330. A movable rotating shaft 360 that cooperates with the fixed rotating shaft 350 is arranged in the second circular groove 201. And an angle limiting component 340 that cooperates with the control circular gear 330 is arranged in the angle control mechanism 300.

[0033] Specifically, the device includes a first fastener 100 and a second fastener 200. The rotation angle between the two fasteners is fixed through the angle control mechanism 300. The angle control mechanism 300 mainly consists of a limiting ring wheel 310, a control circular gear 330, a fixed rotating shaft 350, a movable rotating shaft 360, and an angle limiting component 340. The limiting ring wheel 310 is provided on the first fastener 100, and a limiting circular groove 320 for restricting the movement of the control circular gear 330 is formed thereon. The control circular gear 330 is installed on the second fastener 200 and cooperates with the limiting circular groove 320 to control the rotation angle between the two fasteners. The fixed rotating shaft 350 is installed in the first circular groove 111 of the first fastener 100, and the movable rotating shaft 360 is arranged in the second circular groove 201 of the second fastener 200 and cooperates with the fixed rotating shaft 350, enabling the two fasteners to rotate around the fixed rotating shaft 350.

[0034] Further, the angle limiting component 340 includes limiting tooth grooves 311 uniformly formed on the inner layer of the limiting ring wheel along the circumferential direction of the limiting ring wheel 310. A number of limiting tooth units are uniformly arranged on the control circular gear 330 along the circumferential direction of the limiting ring wheel 310.

[0035] One end of the fixed rotating shaft 350 close to the movable rotating shaft 360 is provided with a movable cavity 351. A sliding column 361 located in the movable cavity 351 is arranged on the movable rotating shaft 360. And a limiting screw 370 that cooperates with the fixed rotating shaft 350 and / or the movable rotating shaft 360 is arranged on the first fastener 100 and / or the second fastener 200.

[0036] When the rotation angle is determined, the control circular gear 330 is located in the limiting ring wheel, and the limiting teeth are located in the limiting tooth grooves 311.

[0037] Preferably, two structural designs of the limiting tooth units are provided, specifically as follows:

[0038] First, the limit tooth unit includes a tooth member 341 provided on the control circular gear 330, and the tooth member 341 is in clearance fit with the limit tooth groove 311.

[0039] Second, the limit tooth unit includes a limit sliding groove opened along the radial direction of the limit ring gear 310, and an extrusion member 342 is arranged in the limit sliding groove; an inclined extrusion portion cooperating with the extrusion member 342 is arranged on the movable rotating shaft 360; during use, one end of the extrusion member 342 is in contact with the extrusion portion, and the other end of the extrusion member 342 is provided with a contact with the limit tooth groove 311.

[0040] In the second limit tooth unit, two structural designs of the extrusion member 342 are preferably provided as follows:

[0041] First, the extrusion member 342 includes an extrusion rod, one end of the extrusion rod is in contact with the extrusion portion, and the other end of the extrusion rod is provided with a contact with the limit tooth groove 311.

[0042] Second, the extrusion member 342 includes an extrusion sleeve 3421 cooperating with the limit sliding groove, an extrusion block 3422 cooperating with the inclined extrusion portion is arranged at one end of the extrusion sleeve 3421, a limit block 3423 is arranged at the other end of the extrusion sleeve 3421, and an extrusion spring 3424 is arranged in the extrusion sleeve 3421, and two ends of the extrusion spring 3424 are respectively in contact with the extrusion block 3422 and the limit block 3423.

[0043] Specifically, the angle limit assembly 340 includes limit tooth grooves 311 evenly distributed along the circumference of the control circular gear 330, and several limit tooth units arranged on the control circular gear 330. After the rotation angle is determined, the limit teeth of the control circular gear 330 are located in the limit tooth grooves 311, and a clearance fit is formed between the limit tooth grooves and the tooth member 341, so as to realize the fixation of the angle. In another design, the limit tooth unit is composed of a limit sliding groove, an extrusion member 342 and an inclined extrusion portion, and the angle is fixed in the limit tooth groove 311 through the mutual cooperation of the extrusion member 342 and the extrusion portion.

[0044] Further, the first fastener 100 includes a fixed fastener 110 for connecting with the second fastener 200. The limiting ring wheel 310 is arranged on the fixed fastener 110. An active fastener 160 is movably connected to the fixed fastener 110. A connecting screw 120 is rotatably connected to the fixed fastener 110 and the active fastener 160. A connecting plate 140 is arranged on the active fastener 160. The connecting plate 140 is provided with a connecting notch 150 for cooperating with the connecting screw 120. An extrusion nut 130 for cooperating with the connecting plate 140 is arranged on the connecting screw. A clamping space for fixing a steel pipe is formed between the fixed fastener 110 and the active fastener 160.

[0045] The structure of the second fastener 200 is the same as that of the first fastener 100.

[0046] During use, the first fastener 100 and the second fastener 200 are connected through a fixed rotating shaft 350 and a movable rotating shaft 360, and it is ensured that the control circular gear 330 cooperates with the limiting circular groove 320 of the limiting ring wheel 310. By adjusting the relative position between the fixed rotating shaft 350 and the movable rotating shaft 360, the rotation angles of the two fasteners are adjusted to reach the required installation angle. After reaching the predetermined angle, the angle is fixed through the cooperation between the limiting tooth unit on the control circular gear 330 and the limiting tooth groove 311. The clearance fit between the tooth part 341 and the limiting tooth groove 311 or the oblique extrusion structure between the extrusion part 342 and the extrusion part can be selected according to specific requirements. If the second limiting tooth unit is used, it is necessary to ensure the close contact between the limiting teeth of the control circular gear 330 and the limiting tooth groove 311 through the cooperation between the extrusion part 342 and the oblique extrusion part, so as to fix the angle. After the angle is fixed, the fixed rotating shaft 350 and the movable rotating shaft 360 are locked by a limiting screw 370 to ensure that the two fasteners do not move relative to each other during construction, and the stability and safety of the structure are ensured. After the angle is fixed and locked, the first fastener 100 and the second fastener 200 are installed with the components to be connected, and the firmness of each connection part is checked to ensure that the fastener system is in a stable state.

[0047] The technical features not described in the present utility model can be realized by or adopted the prior art, and will not be elaborated here. Of course, the above description is not a limitation to the present utility model, and the present utility model is not limited to the above examples. Changes, modifications, additions or substitutions made by those of ordinary skill in the art within the essence of the present utility model should also belong to the protection scope of the present utility model.

Claims

1. A fixed angle rotating buckle, characterized in that : The invention comprises a first fastener (100), a second fastener (200) rotatably connected to the first fastener (100) being arranged on one side of the first fastener (100), and an angle control mechanism (300) for determining the rotation angle of the first fastener (100) and the second fastener (200) being arranged between the first fastener (100) and the second fastener (200); The angle control mechanism (300) comprises a limiting ring wheel (310) arranged on the first fastener (100), a limiting circular groove (320) being provided on the limiting ring wheel (310), the second fastener (200) being provided with a control circular gear (330) cooperating with the limiting circular groove (320), the first fastener (100) being provided with a first circular groove (111) coaxially arranged with the limiting circular groove, a fixed rotating shaft (350) being provided in the first circular groove (111), the second fastener (200) being provided with a second circular groove (201) cooperating with the control circular gear (330), a movable rotating shaft (360) cooperating with the fixed rotating shaft (350) being provided in the second circular groove (201), and an angle limiting component (340) cooperating with the control circular gear (330) being provided in the angle control mechanism (300).

2. The fixed angle rotating fastener according to claim 1, characterized in that: The angle limiting assembly (340) comprises limiting tooth grooves (311) uniformly arranged on the inner ring layer of the limiting ring wheel along the circumferential direction of the limiting ring wheel (310), and the control circular gear (330) is uniformly provided with a plurality of limiting tooth units along the circumferential direction of the limiting ring wheel (310); An active cavity (351) is formed at one end of the fixed rotating shaft (350) close to the active rotating shaft (360), and a sliding column (361) located in the active cavity (351) is provided on the active rotating shaft (360), and a limiting screw (370) cooperating with the fixed rotating shaft (350) and / or the active rotating shaft (360) is provided on the first fastener (100) and / or the second fastener (200); When the rotation angle is determined, the control circular gear (330) is located in the limiting ring wheel, and the limiting tooth is located in the limiting tooth groove (311).

3. The fixed angle rotating fastener according to claim 2, characterized in that: The position-limiting tooth unit comprises a tooth piece (341) arranged on the control circular gear (330), and the tooth piece (341) is clearance-matched with the position-limiting tooth groove (311).

4. The fixed angle rotating fastener according to claim 2, characterized in that: The limiting tooth unit comprises a limiting slide groove opened along the radial direction of the limiting ring wheel (310), and an extrusion piece (342) is arranged in the limiting slide groove; an oblique extrusion portion cooperating with the extrusion piece (342) is arranged on the movable rotating shaft (360); when in use, one end of the extrusion piece (342) contacts with the extrusion portion, and the other end of the extrusion piece (342) contacts with the limiting tooth groove (311).

5. The fixed angle rotating fastener according to claim 4, characterized in that: The extrusion member (342) comprises an extrusion rod, one end of which is in contact with the extrusion portion, and the other end of which is provided with a tooth groove (311) in contact with the limiting position.

6. The fixed angle rotating fastener according to claim 4, characterized in that: The extrusion member (342) comprises an extrusion sleeve (3421) cooperating with the limiting slide groove, one end of the extrusion sleeve (3421) is provided with an extrusion block (3422) cooperating with the oblique extrusion portion, the other end of the extrusion sleeve (3421) is provided with a limiting block (3423), and an extrusion spring (3424) is provided in the extrusion sleeve (3421), and the two ends of the extrusion spring (3424) are respectively in contact with the extrusion block (3422) and the limiting block (3423).

7. The fixed angle rotating fastener according to claim 1, characterized in that: The first fastener (100) comprises a fixed fastener (110) for connecting with the second fastener (200); the limiting ring wheel (310) is arranged on the fixed fastener (110); a movable fastener (160) movably connected to the fixed fastener (110) is arranged on the fixed fastener (110); a connecting screw (120) rotatably connected to the movable fastener (160) is arranged on the fixed fastener (110); a connecting plate (140) is arranged on the movable fastener (160); a connecting notch (150) cooperating with the connecting screw (120) is provided on the connecting plate (140); an extrusion nut (130) cooperating with the connecting plate (140) is provided on the connecting screw; and a clamping space for fixing a steel pipe is provided between the fixed fastener (110) and the movable fastener (160); The structure of the second fastener (200) is consistent with the structure of the first fastener (100).

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