Angle adjustable connection structure

Abstract

The utility model provides an angle adjustable connecting structure, the connecting seat includes two opposite setting webs, the assembly space of accommodating connecting head is formed between two opposite setting webs, is provided with the open type coordination hole on the connecting head, and the connecting head stretches into the assembly space of connecting seat, and the fastening assembly includes special-shaped pivot and fastening screw, special-shaped pivot is adapted with special-shaped assembly hole, and special-shaped pivot and fastening screw are two thread cooperation clamping connecting seat and are fixed with connecting seat, open type coordination hole and special-shaped pivot are opposite fixed under the locking state. Through special-shaped assembly hole and special-shaped pivot cooperation locking, make special-shaped pivot not rotate relative to special-shaped assembly hole, improved the stability of angle after adjusting, utilize the open size of open type coordination hole of adjusting assembly and adjust, on the one hand, facilitate assembly, on the other hand, improved the stability of open type coordination hole and special-shaped pivot opposite fixed, and further improved the stability of angle after adjusting.

Description

Technical Field

[0001] This utility model relates to the field of connection structure technology, specifically to an angle-adjustable connection structure. Background Technology

[0002] Connections between rods, between rods and plates, and between plates are currently common application scenarios. However, due to the higher demands for convenience and applicability in modern product design, conventional fixed connection methods are difficult to apply to scenarios requiring angle adjustment.

[0003] A Chinese patent application with publication number CN205330039U discloses an aluminum alloy railing with an adjustable installation angle. The connecting component includes a connector and a connecting seat. The connector and the connecting seat are respectively fastened to the end of the horizontal bar and the post, or are integrally formed with the end of the horizontal bar and the post. The connector has an assembly hole, and the connecting seat has a connector receiving space for accommodating the connector and a matching assembly hole that cooperates with the assembly hole on the connector.

[0004] When using, after adjusting the installation angle, the user fixes the connector and the connector seat by using fasteners to engage with the mounting holes and matching mounting holes. When adjusting the angle, first release the locking engagement of the fasteners with the mounting holes and matching mounting holes, adjust the angle to the target position, and then fix the connector and the connector seat by using fasteners to engage with the mounting holes and matching mounting holes.

[0005] The existing angle-adjustable connection structure does not have an angle locking function, which makes it prone to loosening and needs improvement. Utility Model Content

[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an angle-adjustable connection structure.

[0007] According to the present invention, an angle-adjustable connection structure includes a connecting seat, a connecting head, and a fastening assembly. The connecting seat includes two opposing stiffening plates, forming an assembly space for accommodating the connecting head between the two opposing stiffening plates. One stiffening plate has a circular assembly hole, and the other stiffening plate has a non-circular assembly hole. The connecting head has an open-type matching hole, and the connecting head extends into the assembly space of the connecting seat. The fastening assembly includes a non-circular rotating shaft and a fastening screw. The non-circular rotating shaft is adapted to the non-circular assembly hole, and the non-circular rotating shaft and the fastening screw are threaded together to clamp and fix the connecting seat.

[0008] Preferably, an open bushing is provided between the open-type matching hole and the irregular rotating shaft; in the locked state, the open bushing is coaxially fitted with the irregular rotating shaft, the inner wall of the open bushing abuts against the outer wall of the irregular rotating shaft, the open-type matching hole is coaxially fitted with the open bushing, and the inner wall of the open-type matching hole abuts against the outer wall of the open bushing.

[0009] Preferably, an oil guide groove is provided on the outer wall of the open bushing, and the length direction of the oil guide groove is parallel to the axial direction of the open bushing.

[0010] Preferably, the cross-sectional shape of the irregular assembly hole is D-shaped, and the irregular rotating shaft includes a shaft segment with a D-shaped cross-sectional shape.

[0011] Preferably, a shaped gasket is provided between the rib plate where the irregular assembly hole is located and the connector; a circular gasket is provided between the rib plate where the circular assembly hole is located and the connector.

[0012] Preferably, the connector is further provided with an adjustment component for adjusting the size of the opening of the open-type matching hole. In the locked state, the open-type matching hole is fixed relative to the irregular rotating shaft. The adjustment component includes an adjustment screw and an adjustment nut. Adjustment holes are provided on both sides of the opening of the open-type matching hole on the connector. The threaded end of the adjustment screw passes through the two adjustment holes in sequence. The adjustment nut is threadedly connected to the end of the adjustment screw that passes through the adjustment hole.

[0013] Preferably, the length direction of the adjusting screw is perpendicular to the axial direction of the open-type matching hole.

[0014] Preferably, at least one stiffener of the connecting seat has a first limiting protrusion and a second limiting protrusion, and an adjustment section is connected between the first limiting protrusion and the second limiting protrusion; a limiting block is provided on the connecting head, the limiting block is located between the first limiting protrusion and the second limiting protrusion, and the limiting block abuts against and limits the first limiting protrusion and the second limiting protrusion respectively.

[0015] Preferably, the adjusting section is arc-shaped, the limiting block is cylindrical, and the arc-shaped outer contour of the adjusting section contacts the cylindrical arc surface of the limiting block.

[0016] Preferably, the included angle between the first limiting protrusion, the center point of the circular assembly hole, and the second limiting protrusion is 0 to 90 degrees; and / or, the included angle between the first limiting protrusion, the center point of the irregular assembly hole, and the second limiting protrusion is 0 to 90 degrees.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. This utility model uses the irregularly shaped assembly hole and irregularly shaped rotating shaft to lock together, so that the irregularly shaped rotating shaft will not rotate relative to the irregularly shaped assembly hole, thereby improving the stability of the adjusted angle; the opening size of the open-type matching hole is adjusted by the adjustment component, which facilitates assembly on the one hand, and improves the stability of the irregularly shaped rotating shaft and the open-type matching hole relative to each other on the other hand, thereby improving the stability of the adjusted angle.

[0019] 2. This utility model uses a non-circular rotating shaft with a D-shaped cross-section to ensure the rotating capacity of the shaft on the one hand, and to limit its movement by cooperating with the non-circular assembly hole on the other hand.

[0020] 3. This utility model can store lubricating oil or grease through the oil guide groove on the outer surface of the open bushing, preventing the open matching hole, the open bushing and the irregularly shaped rotating shaft from being corroded and stuck, and ensuring the convenience of adjusting the angle of the connection structure. Attached Figure Description

[0021] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0022] Figure 1 This is an exploded view showing the main connection structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the overall structure of the open bushing, which is the main feature of this utility model.

[0024] Figure 3 This is a schematic diagram showing the contact and limiting action between the limiting block and the first limiting protrusion, which is the main feature of this utility model.

[0025] Figure 4 This utility model mainly illustrates the rotation of the connecting seat and the connecting head.

[0026] Reference numerals: 1. Connecting seat; 11. Circular assembly hole; 12. Irregular assembly hole; 13. First limiting protrusion; 14. Second limiting protrusion; 15. Adjusting section; 2. Connecting head; 21. Open-type matching hole; 22. Limiting block; 3. Fastening assembly; 31. Irregular rotating shaft; 32. Fastening screw; 4. Adjusting assembly; 41. Adjusting screw; 42. Adjusting nut; 43. Adjusting hole; 5. Open bushing; 51. Oil guide groove; 6. Irregular gasket; 7. Circular gasket. Detailed Implementation

[0027] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the present invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0028] like Figure 1 Place, Figure 2 , Figure 3 as well as Figure 4 As shown, the adjustable connection structure provided by this utility model includes a connecting seat 1, a connecting head 2, and a fastening assembly 3. The connecting seat 1 includes two opposing stiffeners, forming an assembly space between them to accommodate the connecting head 2. One stiffener has a circular assembly hole 11, and the other stiffener has a shaped assembly hole 12. The connecting head 2 has an open-type matching hole 21, which extends into the assembly space of the connecting seat 1. The fastening assembly 3 includes a shaped rotating shaft 31 and a fastening screw 32. The shaped rotating shaft 31 is adapted to the shaped assembly hole 12, and the shaped rotating shaft 31 and the fastening screw 32 are threaded together to clamp and fix the connecting seat 1. The connecting head 2 also has an adjusting assembly 4 for adjusting the opening size of the open-type matching hole 21. In the locked state, the open-type matching hole 21 is fixed relative to the shaped rotating shaft 31.

[0029] The technical solution of this application utilizes the irregularly shaped assembly hole 12 and the irregularly shaped rotating shaft 31 for locking, so that the irregularly shaped rotating shaft 31 will not rotate relative to the irregularly shaped assembly hole 12, thereby improving the stability of the adjusted angle. The opening size of the open-type matching hole 21 is adjusted by the adjusting component 4, which facilitates assembly and improves the stability of the relative fixation between the irregularly shaped rotating shaft 31 and the open-type matching hole 21, thereby improving the stability of the adjusted angle.

[0030] In a preferred embodiment, the irregularly shaped assembly hole 12 has a D-shaped cross-section, and the irregularly shaped rotating shaft 31 includes a shaft segment with a D-shaped cross-section. The shaft segment of the irregularly shaped rotating shaft 31 that mates with the irregularly shaped assembly hole 12 is a shaft segment with a D-shaped cross-section, and the shaft segment of the irregularly shaped rotating shaft 31 that mates with the circular assembly hole 11 is a shaft segment with a circular cross-section. It should be noted that the D-shape in this application refers to a rectangular notch cut along the axial direction of the cylinder on its side. The D-shape in this application ensures the rotational capability of the rotating shaft and also provides positioning and limiting when mating with the irregularly shaped assembly hole 12.

[0031] In another preferred embodiment, an open bushing 5 is provided between the open-type matching hole 21 and the irregularly shaped rotating shaft 31. In the locked state, the open bushing 5 is coaxially fitted with the irregularly shaped rotating shaft 31, with the inner wall of the open bushing 5 abutting against the outer wall of the irregularly shaped rotating shaft 31. The open-type matching hole 21 is coaxially fitted with the open bushing 5, with the inner wall of the open-type matching hole 21 abutting against the outer wall of the open bushing 5. The opening of the open-type matching hole 21 is arranged along the axial direction of the open-type matching hole 21, and the opening of the open bushing 5 is arranged along the axial direction of the open bushing 5. When the adjusting component 4 adjusts the opening size of the open-type matching hole 21, the adjusting component 4 applies a force to the open-type matching hole 21, causing the opening of the open-type matching hole 21 to narrow. At this time, the inner wall of the open-type matching hole 21 applies a force to the open-type bushing 5. The narrowing of the opening of the open-type bushing 5 makes the inner wall of the open-type bushing 5 fit tightly with the irregular rotating shaft 31, ensuring the stability of the relative position between the irregular rotating shaft 31 and the open-type matching hole 21. It should be emphasized that the open-type matching hole 21 and the open-type bushing 5 in this application are both formed from materials with elastic deformation, such as aluminum alloy. Furthermore, an oil guide groove 51 is provided on the outer wall of the open-type bushing 5, and the length direction of the oil guide groove 51 is parallel to the axial direction of the open-type bushing 5. The oil guide groove 51 can store lubricating oil or grease to prevent the open-type matching hole 21, the open-type bushing 5, and the irregular rotating shaft 31 from being corroded and jammed, ensuring the convenience of adjusting the angle of the connection structure.

[0032] In one feasible implementation, a shaped gasket 6 is provided between the rib plate where the irregular assembly hole 12 is located and the connector 2, and a circular gasket 7 is provided between the rib plate where the circular assembly hole 11 is located and the connector 2. By providing gaskets, vibration damping, anti-loosening, and reduced wear of parts can be achieved.

[0033] In one feasible embodiment, the adjusting assembly 4 includes an adjusting screw 41 and an adjusting nut 42. Adjusting holes 43 are provided on both sides of the opening of the open-type matching hole 21 on the connector 2. The threaded end of the adjusting screw 41 passes through the two adjusting holes 43 in sequence. The adjusting nut 42 is threadedly connected to the end of the adjusting screw 41 that extends out of the adjusting hole 43. The length direction of the adjusting screw 41 is perpendicular to the axial direction of the open-type matching hole 21.

[0034] In a preferred embodiment, at least one stiffener of the connecting seat 1 has a first limiting protrusion 13 and a second limiting protrusion 14, with an adjusting section 15 connecting the first limiting protrusion 13 and the second limiting protrusion 14. A limiting block 22 is provided on the connecting head 2, located between the first limiting protrusion 13 and the second limiting protrusion 14, and abutting against and limiting the first limiting protrusion 13 and the second limiting protrusion 14 respectively. The adjusting section 15 is arc-shaped, and the limiting block 22 is cylindrical; the arc-shaped outer contour of the adjusting section 15 contacts the cylindrical arc surface of the limiting block 22. The contact between the arc-shaped adjusting section 15 and the cylindrical limiting block 22 guides rotation, facilitating angle adjustment through rotation.

[0035] The included angle between the first limiting protrusion 13, the center point of the circular mounting hole 11, and the second limiting protrusion 14 is 0 to 90 degrees. Preferably, the included angle is 90 degrees, allowing for 90-degree angle adjustment. And / or, the included angle between the first limiting protrusion 13, the center point of the irregularly shaped mounting hole 12, and the second limiting protrusion is 0 to 90 degrees. Preferably, the included angle is 90 degrees, allowing for 90-degree angle adjustment.

[0036] It should be emphasized that the angle-adjustable connection structure of this application can be applied to the connection of rods, plates, and rods. Specifically, the connecting seat 1 and the connecting head 2 are fixedly installed at the connection positions of the two parts to be connected. For example, it can be used to connect a treadmill pantograph and a treadmill bracket.

[0037] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0038] The specific embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the substantive content of this utility model. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. An angle-adjustable connection structure, characterized in that, It includes a connecting seat (1), a connector (2) and a fastening assembly (3). The connecting seat (1) includes two opposing stiffeners, and an assembly space for accommodating the connector (2) is formed between the two opposing stiffeners. One of the stiffeners is provided with a circular assembly hole (11), and the other stiffener is provided with a non-circular assembly hole (12). The connector (2) is provided with an open matching hole (21). The connector (2) extends into the assembly space of the connector (1). The fastening component (3) includes a shaped rotating shaft (31) and a fastening screw (32). The shaped rotating shaft (31) is adapted to the shaped assembly hole (12). The shaped rotating shaft (31) and the fastening screw (32) are threaded together to clamp the connector (1) and fix it to the connector (1).

2. The angle-adjustable connection structure as described in claim 1, characterized in that, An open bushing (5) is provided between the open matching hole (21) and the irregular rotating shaft (31). In the locked state, the open bushing (5) is coaxially fitted with the irregular rotating shaft (31), the inner wall of the open bushing (5) abuts against the outer wall of the irregular rotating shaft (31), the open matching hole (21) is coaxially fitted with the open bushing (5), and the inner wall of the open matching hole (21) abuts against the outer wall of the open bushing (5).

3. The angle-adjustable connection structure as described in claim 2, characterized in that, An oil guide groove (51) is provided on the outer wall of the open bushing (5), and the length direction of the oil guide groove (51) is parallel to the axial direction of the open bushing (5).

4. The angle-adjustable connection structure as described in claim 1, characterized in that, The cross-sectional shape of the irregular assembly hole (12) is D-shaped, and the irregular rotating shaft (31) includes a shaft segment with a cross-sectional shape of D.

5. The angle-adjustable connection structure as described in claim 1, characterized in that, A shaped gasket (6) is provided between the stiffener plate where the irregular assembly hole (12) is located and the connector (2). A circular gasket (7) is provided between the stiffener plate where the circular assembly hole (11) is located and the connector (2).

6. The angle-adjustable connection structure as described in claim 1, characterized in that, The connector (2) is also provided with an adjustment component (4) for adjusting the size of the opening of the open-type matching hole (21). In the locked state, the open-type matching hole (21) is fixed relative to the irregular rotating shaft (31). The adjustment assembly (4) includes an adjustment screw (41) and an adjustment nut (42). The opening of the open-type matching hole (21) on the connector (2) is provided with adjustment holes (43) on both sides. The threaded end of the adjustment screw (41) passes through the two adjustment holes (43) in sequence. The adjustment nut (42) is threadedly connected to the end of the adjustment screw (41) that passes through the adjustment hole (43).

7. The angle-adjustable connection structure as described in claim 6, characterized in that, The length direction of the adjusting screw (41) is perpendicular to the axis of the open matching hole (21).

8. The angle-adjustable connection structure as described in claim 1, characterized in that, At least one stiffener of the connecting seat (1) has a first limiting protrusion (13) and a second limiting protrusion (14) formed thereon, and an adjustment section (15) is connected between the first limiting protrusion (13) and the second limiting protrusion (14). The connector (2) is provided with a limiting block (22), which is located between the first limiting protrusion (13) and the second limiting protrusion (14), and the limiting block (22) abuts against the first limiting protrusion (13) and the second limiting protrusion (14) respectively.

9. The angle-adjustable connection structure as described in claim 8, characterized in that, The adjustment section (15) is arc-shaped, and the limiting block (22) is cylindrical. The arc-shaped outer contour of the adjustment section (15) is in contact with the cylindrical arc surface of the limiting block (22).

10. The angle-adjustable connection structure as described in claim 8, characterized in that, The included angle between the center point of the first limiting protrusion (13), the center point of the circular assembly hole (11) and the second limiting protrusion (14) is 0 to 90 degrees. And / or, the included angle between the center point of the first limiting protrusion (13), the irregular assembly hole (12) and the two limiting protrusions is 0 to 90 degrees.

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