Linkage-activated open animal model mouth

Abstract

This invention relates to a linked-opening animal model mouth, comprising an oral cavity formed by an upper jaw and a lower jaw at the front end of the animal's torso. The oral cavity contains a torso connecting piece with a connecting ear shaft hole and a torso connecting ear fixedly connected to the animal's torso. The torso connecting piece has an arc-shaped through hole centered on the connecting ear shaft hole. An upper jaw connecting piece is fixedly connected to the upper jaw within the oral cavity. The upper jaw connecting piece is fixedly connected to a first connecting shaft rotatably passing through the connecting ear shaft hole. The left and right ends of the lower jaw are connected together by a second connecting shaft, which is fixed to the upper jaw connecting piece. The second connecting shaft passes through the arc-shaped through hole and can rotate within the arc-shaped through hole about the first connecting shaft as an axis. This invention has the advantage of the upper and lower jaws opening and closing in a linked manner, solving the problem of slow opening and closing speed in existing animal model mouths where the upper and lower jaws open and close independently.

Description

Technical Field

[0001] This invention relates to toy models, and more particularly to a linked-opening animal model mouth. Background Technology

[0002] Models, sometimes called card models, are a type of leisure item and a popular craft activity for children, enjoyed by both parents and children. They help develop children's hands-on skills while also providing science education. However, existing animal models rely on the independent rotation of the upper and lower jaws to open and close the mouths, resulting in a slow opening and closing speed. Summary of the Invention

[0003] This invention provides a linked opening animal model mouth with coordinated opening and closing of the upper and lower jaws, which solves the problem of slow opening and closing speed in existing animal models where the opening and closing of the mouth is accomplished by independent rotation of the upper and lower jaws.

[0004] The above technical problems are solved by the following technical solution: a linkage-opening animal model mouth, including an upper jaw and a lower jaw located at the front end of the animal's torso, forming an oral cavity between the upper and lower jaws. The oral cavity contains a torso connecting ear and a torso connecting piece. The torso connecting ear is fixedly connected to the animal's torso, and the torso connecting ear has a connecting ear shaft hole. The torso connecting piece is fixedly connected to the animal's torso, and the torso connecting piece has an arc-shaped through hole centered on the connecting ear shaft hole. The upper jaw is fixedly connected to an upper jaw connecting piece located within the oral cavity. The upper jaw connecting piece is fixedly connected to a first connecting shaft that rotatably passes through the connecting ear shaft hole. The left and right ends of the lower jaw are connected together by a second connecting shaft, which is fixedly connected to the upper jaw connecting piece. The second connecting shaft passes through the arc-shaped through hole and can rotate within the arc-shaped through hole about the first connecting shaft. In use, when one of the upper and lower jaws is squeezed or separated, the other jaw can simultaneously close and separate. The linkage structure is located inside the oral cavity, which can maintain the perfect appearance of the animal model. It is easy to manufacture and is suitable for models made of paper.

[0005] Preferably, at least one of the torso connecting ears is integrally formed with the same torso connecting piece. This results in a compact structure and ease of manufacturing.

[0006] Preferably, there are at least two torso connecting ears distributed along the left-right direction, and at least two torso connecting pieces distributed along the left-right direction. This ensures good connection stability.

[0007] Preferably, the second connecting shaft has a quadrilateral cross-section. Two portions of the surface of the arc-shaped through-hole away from the first connecting shaft abut against the surface of the second connecting shaft away from the first connecting shaft, and one portion of the surface of the arc-shaped through-hole facing the first connecting shaft abuts against the surface of the second connecting shaft facing the first connecting shaft. This design increases resistance, maintaining the upper and lower jaws at their current opening size.

[0008] Preferably, the first connecting shaft rotates at an angle of less than 180° within the connecting ear shaft hole. This prevents mouth deformation.

[0009] Preferably, the cross-section of the first connecting shaft is quadrilateral, and the opening shape of the connecting ear shaft hole is quadrilateral. The gap between the first connecting shaft and the connecting ear shaft hole controls the angle of rotation of the first connecting shaft within the connecting ear shaft hole to be less than 180°. This facilitates control of the rotation angle range.

[0010] Preferably, the first connecting shaft has a quadrilateral cross-section, and the upper jaw connecting piece has a first connecting shaft connecting hole, which is a quadrilateral hole. The first connecting shaft passes through the first connecting shaft connecting hole, allowing the upper jaw connecting piece to rotate together with the first connecting shaft. This achieves a convenient and simple fixed connection.

[0011] Preferably, the device also includes two first connecting shaft anti-detachment plates. The first connecting shaft has first connecting shaft grooves at both ends, and the first connecting shaft anti-detachment plates have first connecting shaft anti-detachment plate grooves on their edges. The first connecting shaft is connected to the first connecting shaft anti-detachment plates by being engaged in the first connecting shaft grooves within the first connecting shaft anti-detachment plate grooves. The connecting ear and the upper jaw connecting piece are located between the two first connecting shaft anti-detachment plates. The first connecting shaft anti-detachment plates are used to prevent the first connecting shaft head from detaching from the connecting ear and the upper jaw connecting piece.

[0012] Preferably, the device also includes two second connecting shaft anti-detachment plates. The cross-section of the second connecting shaft is quadrilateral, and both ends of the second connecting shaft are provided with width-reducing sections. The width-reducing sections form a limiting step with the second connecting shaft. Both ends of the lower jaw are provided with quadrilateral connecting holes. The two width-reducing sections are correspondingly inserted into the quadrilateral connecting holes at both ends of the lower jaw. The limiting step is used to limit the closing range of the two ends of the upper jaw. The width-reducing section is provided with a second connecting shaft groove. The edge of the second connecting shaft anti-detachment plate is provided with a second connecting shaft anti-detachment plate groove. The second connecting shaft is connected to the second connecting shaft anti-detachment plate by being engaged in the second connecting shaft groove within the second connecting shaft anti-detachment plate groove. Both ends of the lower jaw are located between the two second connecting shaft anti-detachment plates. The second connecting shaft anti-detachment plates are used to prevent the second connecting shaft head from falling off the upper jaw connecting plate.

[0013] Preferably, the two ends of the upper jaw are connected together by a limiting piece.

[0014] The present invention has the following advantages: the upper jaw and lower jaw can rotate in conjunction to achieve opening and closing, and the upper jaw and lower jaw can be quickly closed in conjunction with each other using a simple non-gear structure. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the invention with the mouth in the open state.

[0016] Figure 2 for Figure 1 A magnified view of a portion of point A;

[0017] Figure 3 This is a schematic diagram of the anti-detachment piece of the first connecting shaft.

[0018] Figure 4 This is a partial schematic diagram of the invention with the mouth in the extended state and removed.

[0019] Figure 5 This is a schematic diagram showing the mating relationship between the torso connecting ear and the torso connecting piece with the first connecting shaft and the second connecting shaft;

[0020] Figure 6 This is a schematic diagram of the invention with the mouth closed.

[0021] In the figure: 1. Animal trunk; 2. Upper jaw; 3. Lower jaw; 4. Trunk connecting ear; 5. Trunk connecting piece; 6. Connecting ear shaft hole; 7. Arc-shaped through hole; 8. Upper jaw connecting piece; 9. First connecting shaft; 10. First connecting shaft anti-detachment piece; 11. First connecting shaft anti-detachment piece groove; 12. Second connecting shaft; 13. Arc-shaped through hole surface away from the first connecting shaft; 14. Second connecting shaft anti-detachment piece; 15. Width reduction section; 16. Limiting step; 17. Detailed Implementation

[0022] 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, and 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.

[0023] See Figures 1 to 6A linked-opening animal model mouth includes an upper jaw 2 and a lower jaw 3 located at the front end of the animal's torso 1, forming an oral cavity between the upper and lower jaws. The oral cavity contains two torso connecting ears 4 and four torso connecting pieces 5. The torso connecting ears are fixedly connected to the animal's torso, and are distributed along the left-right direction. The two torso connecting ears are integrally formed with the two middle torso connecting pieces. Each torso connecting ear has a connecting ear shaft hole 6, the opening of which is quadrilateral. The torso connecting pieces are fixedly connected to the animal's torso. Each torso connecting piece has an arc-shaped through hole 7 centered on the connecting ear shaft hole. An upper jaw connecting piece 8 is fixedly connected to the upper jaw within the oral cavity. A first connecting shaft 9, rotatable and passing through the connecting ear shaft hole, is fixedly connected to the upper jaw connecting piece. The first connecting shaft rotates less than 180° within the connecting ear shaft hole. The first connecting shaft has a quadrilateral cross-section. The gap between the first connecting shaft and the connecting ear shaft hole controls the rotation angle of the first connecting shaft within the connecting ear shaft hole to be less than 180°. The upper jaw connecting piece has a first connecting shaft connecting hole, which is a quadrilateral hole. The first connecting shaft passes through the first connecting shaft connecting hole, allowing the upper jaw connecting piece to rotate with the first connecting shaft. It also includes two first connecting shaft anti-detachment pieces 10. The two ends of the first connecting shaft have first connecting shaft grooves 11, and the edges of the first connecting shaft anti-detachment pieces have first connecting shaft anti-detachment piece grooves 12. The first connecting shaft is engaged with the first connecting shaft anti-detachment piece through the first connecting shaft grooves and is connected to the first connecting shaft anti-detachment piece. The connecting ear and the upper jaw connecting piece are located between the two first connecting shaft anti-detachment pieces, which prevent the first connecting shaft head from detaching from the connecting ear and the upper jaw connecting piece. The left and right ends of the lower jaw are connected together by a second connecting shaft 13. The second connecting shaft has a quadrilateral cross-section. It passes through an arc-shaped through-hole and can rotate within the arc-shaped through-hole about the first connecting shaft. Two portions of the surface 14 of the arc-shaped through-hole away from the first connecting shaft abut against the surface of the second connecting shaft away from the first connecting shaft, and one portion of the surface of the arc-shaped through-hole facing the first connecting shaft abuts against the surface of the second connecting shaft facing the first connecting shaft. The second connecting shaft is fixed together with the upper jaw connecting piece. It also includes two anti-detachment pieces 15 for the second connecting shaft. Both ends of the second connecting shaft have width-reducing sections 16, forming limiting steps 17 between the width-reducing sections and the second connecting shaft. Both ends of the lower jaw have quadrilateral connecting holes, and the two width-reducing sections pass through the quadrilateral connecting holes at both ends of the lower jaw in a one-to-one correspondence. The limiting steps are used to limit the closing range of the upper jaw ends.The connection method between the width-reducing section and the second connecting shaft anti-detachment piece is the same as the connection method between the first connecting shaft and the first connecting shaft anti-detachment piece. Specifically, the width-reducing section has a second connecting shaft groove, and the edge of the second connecting shaft anti-detachment piece has a second connecting shaft anti-detachment piece groove. The second connecting shaft is connected to the second connecting shaft anti-detachment piece by being engaged within the second connecting shaft anti-detachment piece groove. The two ends of the lower jaw are located between the two second connecting shaft anti-detachment pieces, which prevent the second connecting shaft head from detaching from the upper jaw connecting piece. The two ends of the upper jaw are connected together by a limiting piece 18.

[0024] In use, driving one of the upper or lower jaws will cause both the upper and lower jaws to rotate about the first connecting shaft, causing the second connecting shaft to move within the arc-shaped through hole, thereby realizing the opening and closing of the upper and lower jaws.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0026] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A linked-opening animal model mouth, comprising an upper jaw and a lower jaw disposed at the front end of the animal's torso, forming an oral cavity between the upper jaw and the lower jaw, characterized in that, The oral cavity is provided with a trunk connecting ear and a trunk connecting piece. The trunk connecting ear is fixedly connected to the animal trunk. The trunk connecting ear has a connecting ear shaft hole. The trunk connecting piece is fixedly connected to the animal trunk. The trunk connecting piece has an arc-shaped through hole centered on the connecting ear shaft hole. The upper jaw is fixedly connected to an upper jaw connecting piece located in the oral cavity. The upper jaw connecting piece is fixedly connected to a first connecting shaft that can rotatably pass through the connecting ear shaft hole. The left and right ends of the lower jaw are connected together by a second connecting shaft. The second connecting shaft is fixedly connected to the upper jaw connecting piece. The second connecting shaft passes through the arc-shaped through hole and can rotate within the arc-shaped through hole about the first connecting shaft as an axis.

2. The linked-opening animal model mouth according to claim 1, characterized in that, At least one of the said torso connecting ears is integrally formed with the same torso connecting piece.

3. The linked-opening animal model mouth according to claim 1 or 2, characterized in that, The torso connecting ears are at least two in number and are distributed along the left-right direction. The torso connecting plates are at least two in number and are distributed along the left-right direction.

4. The linked-opening animal model mouth according to claim 1 or 2, characterized in that, The cross-section of the second connecting shaft is quadrilateral. Two parts of the surface of the arc-shaped through hole away from the first connecting shaft abut against the surface of the second connecting shaft away from the first connecting shaft. One part of the surface of the arc-shaped through hole facing the first connecting shaft abuts against the surface of the second connecting shaft facing the first connecting shaft.

5. The linked-opening animal model mouth according to claim 1 or 2, characterized in that, The first connecting shaft rotates at an angle of less than 180° within the shaft hole of the connecting ear.

6. The linked-opening animal model mouth according to claim 5, characterized in that, The first connecting shaft has a quadrilateral cross-section, and the opening shape of the connecting ear shaft hole is also quadrilateral. The size of the gap between the first connecting shaft and the connecting ear shaft hole controls the angle of rotation of the first connecting shaft within the connecting ear shaft hole to be less than 180°.

7. The linked-opening animal model mouth according to claim 1 or 2, characterized in that, The first connecting shaft has a quadrilateral cross-section, and the upper jaw connecting piece is provided with a first connecting shaft connecting hole. The first connecting shaft connecting hole is a quadrilateral hole, and the first connecting shaft passes through the first connecting shaft connecting hole so that the upper jaw connecting piece rotates together with the first connecting shaft.

8. The linked-opening animal model mouth according to claim 7, characterized in that, It also includes two first connecting shaft anti-detachment plates. The first connecting shaft has first connecting shaft grooves at both ends. The first connecting shaft anti-detachment plates have first connecting shaft anti-detachment plate grooves on their edges. The first connecting shaft is connected to the first connecting shaft anti-detachment plates by being engaged in the first connecting shaft grooves. The connecting ear and the upper jaw connecting piece are located between the two first connecting shaft anti-detachment plates. The first connecting shaft anti-detachment plates are used to prevent the first connecting shaft head from falling off the connecting ear and the upper jaw connecting piece.

9. The linked-opening animal model mouth according to claim 1 or 2, characterized in that, It also includes two second connecting shaft anti-detachment plates. The cross-section of the second connecting shaft is quadrilateral. Both ends of the second connecting shaft are provided with width reduction sections, and the width reduction sections form a limiting step with the second connecting shaft. Both ends of the lower jaw are provided with quadrilateral connecting holes. The two width reduction sections are correspondingly inserted into the quadrilateral connecting holes at both ends of the lower jaw. The limiting step is used to limit the closing range of the two ends of the upper jaw. The width reduction section is provided with a second connecting shaft part slot. The edge of the second connecting shaft anti-detachment plate is provided with a second connecting shaft part anti-detachment plate part slot. The second connecting shaft is connected to the second connecting shaft part anti-detachment plate by being engaged in the second connecting shaft part slot within the second connecting shaft part anti-detachment plate part slot. Both ends of the lower jaw are located between the two second connecting shaft part anti-detachment plates. The second connecting shaft part anti-detachment plates are used to prevent the second connecting shaft head from falling off the upper jaw connecting plate.

10. The linked-opening animal model mouth according to claim 1 or 2, characterized in that, The two ends of the upper jaw are connected together by a limiting piece.

Images