Angle-adjustable connecting piece

Abstract

The utility model belongs to the technical field of mechanical connection, and discloses an angle-adjustable connecting piece which comprises a fixed limiting piece, a connecting rotating piece, an angle rotating piece, a bolt and a pressing plate. The fixed limiting piece comprises a first sleeve, and the inner wall of one end of the first sleeve is fixedly connected with a first annular fluted disc; the angle rotating part comprises a second sleeve, the lower end of the second sleeve is fixedly connected with a cylindrical pipe, and one end of the cylindrical pipe is fixedly connected with a second annular fluted disc; the connecting rotating piece comprises a sleeve; one end of the second sleeve penetrates through the first sleeve and then is inserted into the sleeve, the pressing plate is slidably arranged in the first sleeve, one end of the bolt slidably penetrates through the pressing plate, the first sleeve, the second sleeve and the sleeve and then is fixedly connected with a nut in a threaded mode, the bolt is sleeved with a spring, and one end of the spring abuts against one side of the pressing plate. According to the quick assembling device, the quick assembling of equipment can be realized only by a single bolt, and the assembling efficiency is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical connection technical field, especially angle adjustable connecting piece. BACKGROUND

[0002] Angle adjustable connecting piece has important application in handicraft assembly, artistic device and outdoor equipment, and its core demand is to simplify adjustment steps and improve environmental adaptability. In the prior art, the angle transmission member and the rotating connecting member are connected through a set of locking bolts, two self-tapping screws are used to fix the locking bolts, and finally a set of fastening bolts is used to fix and connect the angle transmission member, the rotating connecting member and the fixed connecting member. However, the scheme has the following problems:

[0003] Complex structure: the cooperation of multiple bolts and screws leads to complicated installation steps, and users need to operate tools multiple times, which is time-consuming and prone to errors.

[0004] Poor environmental adaptability: the meshing tooth groove is often exposed in the gap of the connecting piece and is easily eroded by dust and rain in outdoor environments, leading to jamming or rusting and shortening the service life.

[0005] Inflexible adjustment: the tightness adjustment requires disassembly of some parts or relocking of multiple sets of bolts, and dynamic adjustment cannot be achieved.

[0006] Therefore, an angle adjustable connecting piece is proposed. SUMMARY

[0007] The utility model aims to provide an angle adjustable connecting piece to solve or at least alleviate one or more of the above problems and other problems in the prior art.

[0008] To achieve the above purpose, the utility model adopts the main technical scheme including:

[0009] An angle adjustable connecting piece includes a fixed limiting piece, a connecting rotating piece, an angle rotating piece, a bolt and a pressing plate.

[0010] The fixed limiting piece includes a first sleeve, and the inner wall of one end of the first sleeve is fixedly connected with a first ring-shaped tooth disc.

[0011] The angle rotating piece includes a second sleeve, and the lower end of the second sleeve is fixedly connected with a cylindrical pipe, and the end of the cylindrical pipe away from the second sleeve is fixedly connected with a second ring-shaped tooth disc.

[0012] The connecting rotating piece includes a sleeve.

[0013] The second sleeve is inserted into the first sleeve through one end of the second sleeve away from the second ring-shaped gear plate, and the tooth head on the second ring-shaped gear plate is clamped in the tooth groove on the first ring-shaped gear plate;

[0014] The pressing plate is arranged in the first sleeve, one end of the bolt is threaded and fixedly connected with a nut after penetrating through the pressing plate, the first sleeve, the second sleeve and the sleeve, a spring is arranged on the bolt, one end of the spring abuts against one side of the pressing plate, and the other end of the spring abuts against one end of the cylindrical pipe away from the second sleeve.

[0015] In the angle-adjustable connecting piece, a mounting groove is formed in the sleeve at one end of the sleeve away from the pressing plate, and the nut is arranged in the mounting groove.

[0016] In the angle-adjustable connecting piece, a first connecting flange is fixedly connected to the outer wall of one end of the first sleeve close to the first ring-shaped gear plate, and a second connecting flange is fixedly connected to the outer wall of one end of the sleeve close to the first sleeve.

[0017] In the angle-adjustable connecting piece, the cross section of the second sleeve is a polygon, and the inner wall of the sleeve is matched with the outer wall of the second sleeve in shape, so that the second sleeve is circumferentially limited when being inserted into the sleeve.

[0018] In the angle-adjustable connecting piece, an adjusting gap is left between the first sleeve and the second sleeve.

[0019] In the angle-adjustable connecting piece, an epoxy resin anti-oxidation coating is sprayed on the spring.

[0020] The angle-adjustable connecting piece has at least the following beneficial effects:

[0021] The angle-adjustable connecting piece only needs a single bolt to realize fast equipment assembly, and effectively improves the assembly efficiency.

[0022] Through the elastic reset force of the spring and the meshing design of the first ring-shaped gear plate and the second ring-shaped gear plate, the gear plate can be separated and the angle can be switched by only rotating an external force, and the angle can be automatically reset and locked after the external force is removed, so that the convenient operation of "one pressing, one rotating and one releasing" is realized, and the adjustment efficiency is significantly improved.

[0023] Only the nut needs to be rotated to change the compression amount of the spring, dynamically adjust the gear plate meshing pressure, and adapt to the stability requirements of different scenes without disassembling parts.

[0024] The first ring-shaped tooth disc and the second ring-shaped tooth disc are completely arranged inside the first sleeve, which effectively prevents dust and rain erosion, and avoids meshing surface jamming or corrosion;

[0025] The first connecting flange and the second connecting flange provide a standardized interface, support bolt or welding fixation, and are suitable for rapid assembly of various scenes such as handicrafts, artistic devices, outdoor equipment, etc. BRIEF DESCRIPTION OF DRAWINGS

[0026] The accompanying drawings, which are included to provide a further understanding of the application and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:

[0027] Figure 1 It is an angle-adjustable connecting piece structure schematic view of the utility model;

[0028] Figure 2 It is an explosion structure schematic view of the utility model;

[0029] Figure 3 It is a structure schematic view of the fixed limiting piece of the utility model;

[0030] Figure 4 It is a structure schematic view of the rotating connecting piece of the utility model;

[0031] Figure 5 It is a cross-section structure schematic view of the utility model.

[0032] BRIEF DESCRIPTION OF DRAWINGS

[0033] 1, fixed limiting piece; 101, first sleeve; 102, first connecting flange; 103, first ring-shaped tooth disc; 2, connecting rotating piece; 201, sleeve; 202, second connecting flange; 203, assembly groove; 3, angle rotating piece; 301, second sleeve; 302, cylindrical pipe; 303, second ring-shaped tooth disc; 4, bolt; 5, pressing plate; 6, spring; 7, nut. DETAILED DESCRIPTION

[0034] The embodiments of the application will be described in detail below with reference to the accompanying drawings and embodiments, so that the realization process of how the application applies technical means to solve technical problems and achieves technical effects can be fully understood and implemented.

[0035] Please refer to Figures 1 to 5 The embodiment of the utility model provides a kind of angle-adjustable connecting piece, including fixed limiting piece 1, connecting rotating piece 2, angle rotating piece 3, bolt 4 and pressing plate 5;

[0036] The fixed limiting part 1 comprises a first sleeve 101, and an inner wall of one end of the first sleeve 101 is fixedly connected with a first annular tooth disc 103;

[0037] The angle rotating part 3 comprises a second sleeve 301, and a lower end of the second sleeve 301 is fixedly connected with a cylindrical pipe 302, and one end of the cylindrical pipe 302 away from the second sleeve 301 is fixedly connected with a second annular tooth disc 303;

[0038] The connecting rotating part 2 comprises a sleeve 201;

[0039] One end of the second sleeve 301 away from the second annular tooth disc 303 is inserted into the inside of the sleeve 201 after penetrating through the first sleeve 101, and the tooth head on the second annular tooth disc 303 is clamped in the tooth groove on the first annular tooth disc 103;

[0040] The pressing plate 5 is slidingly arranged in the inside of the first sleeve 101, one end of the bolt 4 is slidingly penetrated through the pressing plate 5, the first sleeve 101, the second sleeve 301 and the sleeve 201, and is fixedly connected with the nut 7 through screw connection, the spring 6 is sleeved on the bolt 4, one end of the spring 6 abuts against one side of the pressing plate 5, and the other end of the spring 6 abuts against one end of the cylindrical pipe 302 away from the second sleeve 301.

[0041] During installation, the first sleeve 101 of the fixed limiting part 1 is engaged with the second annular tooth disc 303 of the angle rotating part 3 through the first annular tooth disc 103, so that initial angle locking is formed;

[0042] The bolt 4 is penetrated through the pressing plate 5, the first sleeve 101, the second sleeve 301 and the sleeve 201, and the tail end is locked through the nut 7, the spring 6 is compressed between the pressing plate 5 and the cylindrical pipe 302, and continuous pressure is provided to maintain the engagement of the tooth discs.

[0043] When the angle needs to be adjusted, external force is applied to rotate the connecting rotating part 2, the second sleeve 301 drives the second annular tooth disc 303 to disengage from the first annular tooth disc 103, and the spring 6 is further compressed;

[0044] After rotating to the target angle, the external force is removed, the spring 6 is reset to push the pressing plate 5, so that the second annular tooth disc 303 is re-engaged with the first annular tooth disc 103, and the angle switching is completed.

[0045] In the embodiment, the inside of one end of the sleeve 201 away from the pressing plate 5 is formed with an assembly groove 203, and the nut 7 is arranged in the assembly groove 203, and the assembly groove 203 can limit the nut 7.

[0046] The assembly groove 203 limits the circumferential rotation of the nut 7, so that the nut 7 cannot rotate with the bolt 4 when the bolt 4 is locked, and the assembly process is simplified;

[0047] By adjusting the tightness of the bolt 4, the compression amount of the spring 6 can be controlled, so that the resistance of the angle switching is adjusted.

[0048] In this embodiment, the first sleeve 101 is fixedly connected with the first connecting flange 102 near one end of the outer wall of the first ring gear 103, and the sleeve 201 is fixedly connected with the second connecting flange 202 near one end of the outer wall of the first sleeve 101.

[0049] The first connecting flange 102 and the second connecting flange 202 are respectively fixed to two objects to be connected, such as handicraft parts, by bolts or welding, to realize modular installation of the connecting piece;

[0050] The flange structure enhances the connection stability and prevents axial deviation under external force.

[0051] In this embodiment, the cross section of the second sleeve 301 is polygonal, and the shape of the inner wall of the sleeve 201 matches the shape of the outer wall of the second sleeve 301, so that the second sleeve 301 is inserted into the sleeve 201 to form a circumferential limit.

[0052] The polygonal cross section (such as hexagonal) of the second sleeve 301 matches the shape of the inner wall of the sleeve 201, preventing relative rotation between the second sleeve 301 and the sleeve 201;

[0053] This design ensures that only axial movement is allowed during angle adjustment, avoiding misalignment of the gear caused by rotation deviation during angle switching.

[0054] In this embodiment, an adjustment gap is left between the first sleeve 101 and the second sleeve 301. The adjustment gap provides axial movement space for the second sleeve 301 during angle switching, avoiding jamming caused by assembly tolerance or thermal expansion and contraction.

[0055] Further, the spring 6 is sprayed with an epoxy resin anti-oxidation coating. The epoxy resin coating protects the surface of the spring 6 from oxidation or corrosion, especially in outdoor humid and dusty environments, to extend the service life of the spring.

[0056] Working principle:

[0057] 1. Initial assembly:

[0058] The fixed limiting piece 1 and the connecting rotating piece 2 are fixed on two objects respectively through the first connecting flange 102 and the second connecting flange 202;

[0059] The second sleeve 301 of the angle rotating piece 3 is inserted into the sleeve 201, and the second ring gear 303 is engaged with the first ring gear 103;

[0060] The bolt 4 is screwed with the nut 7 after penetrating the pressing plate 5, the first sleeve 101, the second sleeve 301 and the sleeve 201, and the spring 6 is compressed to provide initial engagement pressure.

[0061] 2. Angle adjustment:

[0062] External force rotates the connecting rotating part 2, the second sleeve 301 slides along the sleeve 201 in the axial direction, the spring 6 is further compressed, and the gear plate is disengaged;

[0063] After rotating to the target angle, the external force is removed, the spring 6 pushes the pressing plate 5 to reset, and the gear plate is re-engaged and locked.

[0064] 3. Tension adjustment:

[0065] Tighten or loosen the nut 7, change the compression amount of the spring 6, and thus adjust the resistance of the angle switching.

[0066] The above description shows and describes several preferred embodiments of the utility model, but as before, it should be understood that the utility model is not limited to the form disclosed herein, should not be considered as excluding other embodiments, and can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept disclosed herein by the above teaching or related technical or knowledge. The modification and change made by the person skilled in the art without departing from the spirit and scope of the utility model should be within the protection scope of the claims attached to the utility model.

Claims

1. An angle adjustable connection, characterized in that It comprises fixed limiting piece (1), connecting rotating piece (2), angle rotating piece (3), bolt (4) and pressing plate (5); The fixed limiting piece (1) comprises a first sleeve (101), and the inner wall of one end of the first sleeve (101) is fixedly connected with a first annular tooth disc (103); The angle rotating piece (3) comprises a second sleeve (301), and the lower end of the second sleeve (301) is fixedly connected with a cylindrical pipe (302), and the end, away from the second sleeve (301), of the cylindrical pipe (302) is fixedly connected with a second annular tooth disc (303); The connecting rotating piece (2) comprises a sleeve (201); The end, away from the second annular tooth disc (303), of the second sleeve (301) penetrates through the first sleeve (101) and is inserted into the inside of the sleeve (201), and the tooth head on the second annular tooth disc (303) is clamped in the tooth groove on the first annular tooth disc (103); The pressing plate (5) is slidably arranged in the inside of the first sleeve (101), one end of the bolt (4) penetrates through the pressing plate (5), the first sleeve (101), the second sleeve (301) and the sleeve (201) and is threadedly fixedly connected with a nut (7), a spring (6) is sleeved on the bolt (4), one end of the spring (6) abuts against one side of the pressing plate (5), and the other end of the spring (6) abuts against the end, away from the second sleeve (301), of the cylindrical pipe (302).

2. An angularly adjustable connection as claimed in claim 1, characterised in that: The end, away from the pressing plate (5), of the sleeve (201) is internally formed with an assembly groove (203), and the nut (7) is arranged in the assembly groove (203), so that the nut (7) can be limited.

3. An angularly adjustable connection as claimed in claim 2, characterised in that: The outer wall of one end of the first sleeve (101), close to the first annular tooth disc (103), is fixedly connected with a first connecting flange (102), and the outer wall of one end of the sleeve (201), close to the first sleeve (101), is fixedly connected with a second connecting flange (202).

4. The angularly adjustable connection of claim 1, wherein: The cross section of the second sleeve (301) is polygonal, and the shape of the inner wall of the sleeve (201) is matched with the shape of the outer wall of the second sleeve (301), so that the second sleeve (301) is circumferentially limited when being inserted into the sleeve (201).

5. An angularly adjustable connection as claimed in claim 4, characterised in that: An adjusting gap is left between the first sleeve (101) and the second sleeve (301).

6. An angularly adjustable connection as defined in claim 1, wherein: An epoxy resin anti-oxidation coating is sprayed on the spring (6).

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