Bidirectional universal joint

Abstract

The utility model relates to the technical field of universal joints, and discloses a bidirectional universal joint which comprises an adjusting shaft sleeve, a first adjusting portion and a second adjusting portion, an adjusting space is arranged in the adjusting shaft sleeve, a first adjusting end and a first connecting end are arranged on the first adjusting portion, and a second adjusting end and a second connecting end are arranged on the second adjusting portion. The first adjusting end and the second adjusting end are oppositely arranged in the adjusting space, a locking piece is arranged on the adjusting shaft body, and the locking piece locks the first adjusting end and the second adjusting end; according to the oral medicine teaching aid, the first adjusting part and the second adjusting part are arranged on the adjusting shaft sleeve, multi-angle adjustment of the oral medicine teaching aid is achieved, the locking piece makes contact with the first adjusting end and the second adjusting end in the adjusting space, and then bidirectional locking of the first adjusting part and the second adjusting part is achieved through the locking piece; therefore, locking of the first adjusting part and the second adjusting part is achieved.

Description

Technical Field

[0001] This utility model relates to the field of universal joint technology, and in particular to a bidirectional universal joint. Background Technology

[0002] The teaching of oral medicine demands a high level of practical skills. Learners need specialized surgical training to master basic surgical techniques, making hands-on practice an indispensable part of the curriculum. Therefore, occlusal models are widely used in dental colleges and hospitals for simulating surgical procedures.

[0003] In practical applications, oral occlusion models need to work with support rods to simulate the state of a patient lying or sitting in a dental chair. Most existing support rods are non-adjustable with a fixed tilt angle. However, in actual applications, doctors need to make different angle adjustments according to the patient's oral condition. Because existing support frames cannot meet the needs of comprehensive oral medicine teaching, improvements are required. Utility Model Content

[0004] The main objective of this invention is to propose a bidirectional universal joint, which aims to provide a bidirectional universal joint that can be freely adjusted at multiple angles for use in oral medicine teaching aids.

[0005] To achieve the above objectives, this utility model proposes a bidirectional universal joint, including an adjusting bushing, a first adjusting part, and a second adjusting part. An adjusting space is provided inside the adjusting bushing. The first adjusting part is provided with a first adjusting end and a first connecting end. The second adjusting part is provided with a second adjusting end and a second connecting end. The first adjusting end and the second adjusting end are arranged opposite to each other in the adjusting space. A locking member is provided on the adjusting bushing to lock the first adjusting end and the second adjusting end.

[0006] Specifically, the first adjusting end includes a first adjusting block with a tapered surface on its outer side; the second adjusting end includes a second adjusting block with a tapered surface on its outer side; the locking member includes two locking blocks arranged opposite each other with tapered surfaces on their outer sides; the first adjusting block and the second adjusting block are arranged opposite each other; a locking block is provided between the first adjusting block and the second adjusting block; and the first adjusting block and the second adjusting block are in contact with the locking block respectively.

[0007] Specifically, the first connecting end includes a first connecting rod, which is spherical at one end of the adjustment space. The first adjusting block is provided with a first connecting groove, and the first connecting rod cooperates with the first connecting groove to adjust and connect with the first adjusting block.

[0008] Specifically, the second connecting end includes a second connecting rod, which is spherical at one end of the adjustment space. The second adjusting block is provided with a second connecting groove, and the second connecting rod cooperates with the second connecting groove to adjust and connect with the second adjusting block.

[0009] Specifically, the first adjustment part is provided with a positioning clamp, which is used to fix it to the external desktop.

[0010] Specifically, the second adjustment part is provided with an assembly part, which is used to connect with an external oral medicine teaching aid.

[0011] Specifically, the adjusting bushing is provided with an adjusting groove.

[0012] Specifically, the locking block is provided with a locking hole, and the locking holes of the two opposite locking blocks are coaxially arranged.

[0013] This utility model provides a multi-angle adjustment of an oral medicine teaching aid by setting a first adjustment part and a second adjustment part on the adjustment bushing. The locking member contacts the first adjustment end and the second adjustment end in the adjustment space, thereby achieving bidirectional locking of the first adjustment part and the second adjustment part, and thus locking the first adjustment part and the second adjustment part. Attached Figure Description

[0014] Figure 1 This is one of the three-dimensional structural schematic diagrams of this utility model.

[0015] Figure 2 This is the second three-dimensional structural schematic diagram of the present invention.

[0016] Figure 3 This is a schematic diagram of the disassembled structure of this utility model.

[0017] The reference numerals in the accompanying drawings include: 10, adjusting bushing; 11, positioning clamping block; 12, assembly part; 13, adjusting slot; 14, locking block; 15, locking hole; 20, first adjusting part; 21, first adjusting block; 22, first connecting rod; 30, second adjusting part; 31, second adjusting block; 32, second connecting rod. Detailed Implementation

[0018] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0019] It should be noted that if any directional indication (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial, etc.) is involved in the embodiments of this utility model, the directional indication is only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0020] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0021] like Figures 1 to 3 As shown, a bidirectional universal joint includes an adjusting sleeve 10, a first adjusting part 20, and a second adjusting part 30. An adjusting space is provided within the adjusting shaft. The first adjusting part 20 has a first adjusting end and a first connecting end, and the second adjusting part 30 has a second adjusting end and a second connecting end. The first and second adjusting ends are positioned opposite each other within the adjusting space. A locking member is provided on the adjusting shaft to lock the first and second adjusting ends. When using the dental teaching aid, the locking member is loosened to allow free movement of the first and second adjusting parts within the adjusting sleeve 10, thereby enabling multi-angle free adjustment of the dental teaching aid. Tightening the locking member locks the dental teaching aid in place.

[0022] The first adjusting end includes a first adjusting block 21, with a tapered surface on its outer side. The second adjusting end includes a second adjusting block 31, with a tapered surface on its outer side. The locking component includes two opposing locking blocks 14, with tapered surfaces on their outer sides. The first adjusting block 21 and the second adjusting block 31 are opposite to each other, and the locking block 14 is positioned between them. The first adjusting block 21 and the second adjusting block 31 are in contact with the locking block 14. In this embodiment, by providing tapered surfaces on the first adjusting block 21 and the second adjusting block 31, and then setting the locking block 14 to a tapered surface, the four tapered surfaces contact each other, thereby facilitating both movement and fixation.

[0023] The first connecting end includes a first connecting rod 22, which is spherical at one end in the adjustment space. A first connecting groove is provided on the first adjusting block 21, and the first connecting rod 22 cooperates with the first connecting groove to adjust and connect with the first adjusting block 21. The second connecting end includes a second connecting rod 32, which is spherical at one end in the adjustment space. A second connecting groove is provided on the second adjusting block 31, and the second connecting rod 32 cooperates with the second connecting groove to adjust and connect with the second adjusting block 31. In this embodiment, by providing spherical ends at both the ends of the first connecting rod 22 and the second connecting rod 32, and connecting the spherical ends with the first connecting groove or the second connecting groove, the reversible adjustment of multiple first connecting rods 22 or second connecting rods 32 can be realized, thereby achieving multi-angle adjustment of the oral medical teaching aid.

[0024] A positioning clamp 11 is provided on the first adjustment part 20, and the positioning clamp 11 is used to fix it to the external desktop. In this embodiment, the positioning clamp 11 is provided on the first adjustment part 20, so as to facilitate the fixed connection with the external desktop through the positioning clamp 11.

[0025] The second adjustment section 30 is provided with an assembly section 12, which is used to connect with an external dental teaching aid. In this embodiment, by providing an assembly section 12 at the upper end of the second adjustment section 30, it is easier to connect with the dental teaching aid through the assembly section 12.

[0026] An adjustment slot 13 is provided on the adjustment sleeve 10. In this embodiment, an adjustment slot 13 is provided at the lower end of the adjustment sleeve 10, which facilitates the angle adjustment of the oral medicine teaching aid at a greater elevation angle. In addition, an adjustment slot 13 can also be provided at the upper end of the adjustment sleeve 10, or multiple adjustment slots 13 can be provided at both the upper and lower ends, in order to adapt to different application scenarios.

[0027] The locking block 14 is provided with a locking hole 15, and the locking holes 15 of the two locking blocks 14 arranged opposite each other are coaxially arranged. In this embodiment, the locking hole 15 is provided on the locking block 14, and the locking member passes through the locking hole 15 of the two locking blocks 14, thereby facilitating the control of the tightness between the locking blocks 14, and thus realizing the locking or loosening of the first adjusting part 20 and the second adjusting part 30.

[0028] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A bidirectional universal joint, comprising an adjusting sleeve, a first adjusting part, and a second adjusting part, characterized in that: The adjusting shaft body is provided with an adjusting space. The first adjusting part is provided with a first adjusting end and a first connecting end. The second adjusting part is provided with a second adjusting end and a second connecting end. The first adjusting end and the second adjusting end are arranged opposite to each other in the adjusting space. The adjusting shaft body is provided with a locking member, which locks the first adjusting end and the second adjusting end.

2. A bidirectional universal joint according to claim 1, characterized in that: The first adjusting end includes a first adjusting block, and the outer side of the first adjusting block is provided with a tapered surface. The second adjusting end includes a second adjusting block, and the outer side of the second adjusting block is provided with a tapered surface. The locking member includes two locking blocks arranged opposite to each other, and the outer side of the locking blocks is provided with a tapered surface. The first adjusting block and the second adjusting block are arranged opposite to each other, and a locking block is provided between the first adjusting block and the second adjusting block. The first adjusting block and the second adjusting block are in contact with the locking block respectively.

3. A bidirectional universal joint according to claim 2, characterized in that: The first connecting end includes a first connecting rod, which is spherical at one end of the adjustment space. The first adjusting block is provided with a first connecting groove, and the first connecting rod cooperates with the first connecting groove to adjust and connect with the first adjusting block.

4. A bidirectional universal joint according to claim 2, characterized in that: The second connecting end includes a second connecting rod, which is spherical at one end of the adjustment space. The second adjusting block is provided with a second connecting groove, and the second connecting rod cooperates with the second connecting groove to adjust and connect with the second adjusting block.

5. A bidirectional universal joint according to claim 1, characterized in that: The first adjustment part is provided with a positioning clamp, which is used to fix it to the external desktop.

6. A bidirectional universal joint according to claim 1, characterized in that: The second adjustment part is provided with an assembly part, which is used to connect with an external oral medicine teaching aid.

7. A bidirectional universal joint according to claim 1, characterized in that: The adjusting bushing is provided with an adjusting groove.

8. A bidirectional universal joint according to claim 2, characterized in that: The locking block is provided with a locking hole, and the locking holes of the two locking blocks arranged opposite each other are coaxially arranged.

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