Assembled angle adjusting device

Abstract

The invention discloses an assembled angle adjusting device which comprises an angle adjusting seat and two fixed bases which are relatively fixed, the angle adjusting seat is provided with rotary limiting mechanisms which are arranged in one-to-one correspondence with the fixed bases, and each fixed base comprises a matching shaft body and a limiting fluted disc; the rotary limiting mechanism comprises a fluted disc limiting groove matched with the limiting fluted disc and a shaft channel matched with the matched shaft body, and at least one axial limiting mechanism is arranged between the shaft channel and the matched shaft body. Angle adjusting and locking can be achieved, assembling and angle adjusting are convenient and efficient, meanwhile, locking is stable in the circumferential direction and the axial direction after assembling, matching is tight, and loosening is not likely to happen. The requirement for axial matching and limiting of the angle adjusting base is met, and the situation that the angle adjusting base is lost is basically eradicated. And assembling and angle adjusting operation is smooth and efficient, and the device is suitable for application and popularization.

Description

Technical Field

[0001] This invention relates to an assembled angle adjustment device, belonging to the technical field of angle adjustment assembly structures. Background Technology

[0002] Angle adjustment mechanism is a widely used mechanical structure. It is mainly used for the hinge between two end bodies to meet the relative angle adjustment requirements. It is generally a combination of rotational fit and angle positioning. Rotational fit includes shaft rotation fit and hinge fit, while angle positioning includes stepless or stepped locking.

[0003] This solution is mainly used in the toy industry, serving as a combination between toy fence bases to meet relative assembly, angle adjustment, and limiting requirements. Chinese utility model patent publication number CN218652988U discloses a toy fence that achieves angle rotation and locking functions through a connecting mechanism. The connecting mechanism includes a mounting base and a cooperating mounting ring, retaining ring, and column design, utilizing the engagement of locking teeth to achieve relative locking and adjustment.

[0004] However, it has several drawbacks. First, the shaft fit stability is poor; after rotational adjustment, its axial accuracy is difficult to guarantee, leading to misalignment issues during gear engagement and making alignment adjustment difficult. Second, structural components are prone to loss; it lacks reliable axial locking, easily causing workpiece loss. Finally, the structural component design is unreasonable, making it difficult to meet the injection molding requirements of the mounting base or mating parts, affecting mold design and mass production. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and to address the problems of poor axial stability and easy loss of workpieces in traditional mating structures by proposing an assembled angle adjustment device.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: An assembled angle adjustment device includes an angle adjustment base and two relatively fixed bases. The angle adjustment base has a rotation limiting mechanism that corresponds to each of the fixed bases. The device is characterized in that: The fixed base includes a mating shaft and a limiting gear plate; The rotation limiting mechanism includes a toothed disc limiting groove that mates with the limiting toothed disc and a shaft channel that mates with the mating shaft. At least one axial limiting mechanism is provided between the shaft channel and the mating shaft.

[0007] Preferably, the fixed base includes a support surface, the limiting gear is disposed on the support surface, the mating shaft is disposed on the limiting gear, the mating shaft includes a shaft tube with a shaft cavity, the free end of the shaft tube is provided with a cap end with a diameter larger than the outer diameter of the shaft tube, and at least one limiting ring recess is provided on the shaft tube. The shaft channel includes a guide mandrel that mates with the shaft cavity and an annular chamber that mates with the shaft tube body and is disposed on the outer periphery of the guide mandrel. The annular chamber is provided with an elastic buckle body that mates with the limiting ring recess and a cap end limiting groove that mates with the cap end.

[0008] Preferably, the annular cavity is provided with a plurality of elastic buckle bodies evenly distributed in the circumference, and each elastic buckle body includes an elastic arm and a locking end disposed on the free end of the elastic arm.

[0009] Preferably, the shaft tube body is provided with a first limiting ring recess and a second limiting ring recess that are axially spaced apart; When the elastic buckle body is in the limiting state with the first limiting ring recess, the limiting toothed disc and the limiting groove of the toothed disc are in a mortise and tenon fit. When the elastic buckle body is in the limiting state with the second limiting ring recess, the limiting toothed disc is separated from the limiting groove of the toothed disc, and the cap end is limited in the cap end limiting groove.

[0010] Preferably, the fixed base includes a support surface, the mating shaft is disposed on the support surface, the limiting gear is detachably disposed on the free end of the mating shaft, and a circumferential limiting structure is provided between the limiting gear and the mating shaft; The angle adjustment seat includes an adjustment base and a pivot cover that is pivotally connected. The toothed disc limiting groove of the rotation limiting mechanism is disposed on the pivot cover, and the shaft channel of the rotation limiting mechanism is disposed on the adjustment base. The mating shaft extends through the shaft channel, and the adjusting base is positioned between the support surface and the limiting gear plate.

[0011] Preferably, the limiting gear disc includes a gear disc ring and a locking pin, and the mating shaft is provided with a locking pin channel that mates with the locking pin.

[0012] Preferably, an opening and closing locking part is provided between the adjusting base and the pivot cover.

[0013] Preferably, the angle adjustment seat and the fixed base are integrally injection molded structural parts.

[0014] The beneficial effects of this invention are mainly reflected in: 1. It can achieve angle adjustment and locking, and the assembly and angle adjustment are convenient and efficient. At the same time, after assembly, it is locked and stable in both the circumferential and axial directions, and the fit is tight and not easy to loosen.

[0015] 2. It meets the axial fitting and limiting requirements of the angle adjustment seat, basically eliminating the possibility of the angle adjustment seat being lost.

[0016] 3. The assembly and angle adjustment operations are relatively smooth and efficient, making it suitable for widespread application. Attached Figure Description

[0017] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the structure of an embodiment of the assembled angle adjustment device of the present invention.

[0018] Figure 2 This is a schematic diagram of the angle adjustment seat in Embodiment 1 of the assembled angle adjustment device of the present invention.

[0019] Figure 3 This is a schematic diagram of the locking state structure of an embodiment of the assembled angle adjustment device of the present invention.

[0020] Figure 4 This is a schematic diagram of the rotation adjustment state structure of an embodiment of the assembled angle adjustment device of the present invention.

[0021] Figure 5 This is an exploded structural diagram of a second embodiment of the assembled angle adjustment device of the present invention.

[0022] Figure 6 This is a schematic diagram of the angle adjustment seat in Embodiment 2 of the assembled angle adjustment device of the present invention. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described in the present application can be combined with each other.

[0025] This invention provides an assembled angle adjustment device, such as... Figures 1 to 6 As shown, it includes an angle adjustment seat 1 and two relatively fixed bases 2. The angle adjustment seat 1 has a rotation limiting mechanism that corresponds to the fixed bases 2 one by one.

[0026] The fixed base 2 includes a mating shaft 3 and a limiting gear 4.

[0027] The rotary limiting mechanism includes a toothed disc limiting groove 5 that mates with the limiting toothed disc and a shaft channel 6 that mates with the mating shaft. At least one axial limiting mechanism 7 is provided between the shaft channel and the mating shaft.

[0028] Detailed implementation process and principle explanation: The fixed base 2 is used to be set on two relatively fixed plates in a relative state. During assembly, the two rotation limit mechanisms of the angle adjustment seat 1 are connected to the corresponding fixed base 2.

[0029] During assembly, the shaft channel and the mating shaft are connected to meet the requirements of axial connection and rotation operation. After the axial connection is in place, the toothed disc limiting groove 5 can be used to achieve mortise and tenon connection with the limiting toothed disc, thereby achieving relative angle fixation. This satisfies the requirements of efficient assembly and angle adjustment.

[0030] Example 1 like Figures 1 to 4 As shown, the fixed base 2 includes a support surface 20, a limiting gear 4 is disposed on the support surface, and a mating shaft 3 is disposed on the limiting gear 4. The mating shaft 3 includes a shaft tube 30 having a shaft cavity 31. The free end of the shaft tube 30 is provided with a cap end 32 with a diameter larger than the outer diameter of the shaft tube. At least one limiting ring recess 33 is provided on the shaft tube.

[0031] The shaft channel 6 includes a guide mandrel 61 that mates with the shaft cavity and an annular chamber 62 that mates with the shaft tube body and is disposed on the outer periphery of the guide mandrel. The annular chamber is provided with an elastic snap-fit ​​body 63 that mates with the limiting ring recess and a cap end limiting groove 64 that mates with the cap end.

[0032] Specifically, during assembly, the shaft channel 6 and the mating shaft 3 are axially guided relative to each other. The guide mandrel 61 passes through the shaft cavity 31 to achieve high-precision axial guidance assembly. Before the assembly is fully inserted, the rotation angle is adjusted. After the adjustment angle is determined, the angle adjustment seat 1 is pressed down to allow the gear plate limiting groove 5 to be tenon-and-mortise engaged with the limiting gear plate. At this time, the elastic buckle body 63 is locked in the limiting ring recess 33 to achieve axial locking. At the same time, the cap end is limited in the cap end limiting groove 64, making the assembly more reliable and stable, and preventing circumferential, radial, and axial offsets.

[0033] In one specific embodiment, the annular cavity is provided with a plurality of elastic buckle bodies 63 evenly distributed in the circumference. Each elastic buckle body includes an elastic arm 631 and a locking end 632 disposed on the free end of the elastic arm.

[0034] Specifically, during axial assembly, the locking end 632 expands outwards after being compressed, and the elastic arm 631 expands outwards after the locking end 632 aligns with the limiting ring recess 33, achieving axial locking by elastically resetting. Of course, during disassembly, applying a certain axial force allows for disassembly.

[0035] In one specific embodiment, the shaft tube body is provided with a first limiting ring recess 331 and a second limiting ring recess 332 that are axially spaced apart.

[0036] When the elastic buckle body is in the limiting position with the first limiting ring recess, the limiting toothed disc and the limiting groove of the toothed disc are in a mortise and tenon fit; at this time, as Figure 3 As shown, it is in a locked state with angle limit. This meets the locking reliability requirements.

[0037] When the elastic buckle body and the second limiting ring are in a limiting state, the limiting toothed disc and the toothed disc limiting groove are relatively separated, and the cap end is limited in the cap end limiting groove.

[0038] It should be noted that the pulling force of the elastic buckle body disengaging from the first limiting ring recess is less than the pulling force of the elastic buckle body disengaging from the second limiting ring recess. This satisfies the distinction between disengagement pull-out and disassembly pull-out during adjustment, thereby preventing direct loosening under force.

[0039] At this time, as Figure 4 As shown, the angle adjusting seat 1 remains axially locked and will not detach from the fixed base 2. Without detaching from the base, it can freely rotate to adjust the angle, and the cap end still provides circumferential rotation guidance, ensuring reliable alignment and stable horizontal rotation. After adjustment, pressing down will achieve the desired angle. Figure 3 The locking state of the combination.

[0040] Example 2 like Figure 5 and Figure 6As shown, the fixed base 2 includes a support surface 20, a mating shaft is disposed on the support surface, a limiting gear is detachably disposed on the free end of the mating shaft, and a circumferential limiting structure 8 is provided between the limiting gear and the mating shaft.

[0041] The circumferential limiting structure 8 generally adopts the cooperation of concave teeth and protrusions, that is, concave teeth are set on the tube wall of the cooperating shaft, and protrusions that cooperate with the concave teeth are set on the limiting gear plate.

[0042] The angle adjustment seat includes an adjustment base 11 and a pivot cover 12 that is pivotally connected. The toothed disc limiting groove of the rotation limiting mechanism is provided on the pivot cover, and the shaft channel of the rotation limiting mechanism is provided on the adjustment base.

[0043] The shaft body passes through the shaft channel, and the adjustable base limit is set between the support surface and the limit gear plate.

[0044] Specifically, the design separates the shaft channel from the toothed disc limiting groove. The assembly of the limiting toothed disc secures the angle adjustment seat 1, preventing its loss. The pivot cover 12 is flipped to achieve locking and unlocking operations. This design eliminates the possibility of separation and loss, while the rotation and locking operations are convenient and smooth.

[0045] In one specific embodiment, the limiting gear 4 includes a gear ring 41 and a locking pin 42, and the mating shaft 3 is provided with a locking pin channel that mates with the locking pin.

[0046] This satisfies the locking requirements of the limiting gear 4. Of course, it can also adopt a locking structure such as a buckle or bolt. As long as the limiting gear 4 can be detached, it is within the scope of protection of this case.

[0047] In one specific embodiment, an opening and closing locking part is provided between the adjusting base and the pivot cover.

[0048] The opening and closing locking mechanism is generally a snap-on structure, but it can also be a pull-lock or other similar structure.

[0049] In one specific embodiment, the angle adjustment seat and the fixed base are both integrally injection molded structural parts. This design meets the requirements of integral injection molding, facilitating mass production.

[0050] As described above, it can be seen that it can achieve angle adjustment and locking, and the assembly and angle adjustment are convenient and efficient. After assembly, both circumferential and axial locking are stable, and the tight fit prevents loosening. It meets the axial engagement limit requirements of the angle adjustment seat, virtually eliminating the possibility of loss. Assembly and angle adjustment operations are relatively smooth and efficient, making it suitable for widespread application.

[0051] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent in such process, method, article, or apparatus / device.

[0052] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will all fall within the scope of protection of the present invention.

Claims

1. An assembled angle adjustment device, comprising an angle adjustment seat and two relatively fixed bases, wherein the angle adjustment seat has a rotation limiting mechanism corresponding to each of the fixed bases, characterized in that: The fixed base includes a mating shaft and a limiting gear plate; The rotation limiting mechanism includes a toothed disc limiting groove that mates with the limiting toothed disc and a shaft channel that mates with the mating shaft. At least one axial limiting mechanism is provided between the shaft channel and the mating shaft.

2. The assembled angle adjustment device according to claim 1, characterized in that: The fixed base includes a support surface, the limiting gear is disposed on the support surface, the mating shaft is disposed on the limiting gear, the mating shaft includes a shaft tube with a shaft cavity, the free end of the shaft tube is provided with a cap end with a diameter larger than the outer diameter of the shaft tube, and at least one limiting ring recess is provided on the shaft tube. The shaft channel includes a guide mandrel that mates with the shaft cavity and an annular chamber that mates with the shaft tube body and is disposed on the outer periphery of the guide mandrel. The annular chamber is provided with an elastic buckle body that mates with the limiting ring recess and a cap end limiting groove that mates with the cap end.

3. The assembled angle adjustment device according to claim 2, characterized in that: The annular cavity is provided with a plurality of elastic buckle bodies evenly distributed in the circumference, and each elastic buckle body includes an elastic arm and a locking end disposed on the free end of the elastic arm.

4. The assembled angle adjustment device according to claim 2, characterized in that: The shaft tube body is provided with a first limiting ring recess and a second limiting ring recess that are axially spaced apart. When the elastic buckle body is in the limiting state with the first limiting ring recess, the limiting toothed disc and the limiting groove of the toothed disc are in a mortise and tenon fit. When the elastic buckle body is in the limiting state with the second limiting ring recess, the limiting toothed disc is separated from the limiting groove of the toothed disc, and the cap end is limited in the cap end limiting groove.

5. The assembled angle adjustment device according to claim 1, characterized in that: The fixed base includes a support surface, the mating shaft is disposed on the support surface, the limiting gear is detachably disposed on the free end of the mating shaft, and a circumferential limiting structure is provided between the limiting gear and the mating shaft; The angle adjustment seat includes an adjustment base and a pivot cover that is pivotally connected. The toothed disc limiting groove of the rotation limiting mechanism is disposed on the pivot cover, and the shaft channel of the rotation limiting mechanism is disposed on the adjustment base. The mating shaft extends through the shaft channel, and the adjusting base is positioned between the support surface and the limiting gear plate.

6. The assembled angle adjustment device according to claim 5, characterized in that: The limiting gear disc includes a gear disc ring and a locking pin, and the mating shaft is provided with a locking pin channel that mates with the locking pin.

7. The assembled angle adjustment device according to claim 5, characterized in that: An opening and closing locking part is provided between the adjusting base and the pivot cover.

8. The assembled angle adjustment device according to any one of claims 1 to 7, characterized in that: The angle adjustment seat and the fixed base are both integrally injection molded structural parts.

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