Device for testing occlusion of dogs and cats

Abstract

The invention discloses dog and cat occlusion testing equipment, and mainly relates to the field of occlusion testing. Comprising a shell, a driving device and a meshing device, and the shell is arranged on the outer sides of the driving device and the meshing device; the occlusion device comprises an upper jaw, a lower jaw, an upper jaw mounting plate for fixing the upper jaw and a lower jaw mounting plate for fixing the lower jaw, one end of the upper jaw mounting plate is connected with the driving device, the driving device controls rotation of the upper jaw mounting plate to realize occlusion of the upper jaw and the lower jaw, and the lower jaw mounting plate is connected with the shell; the driving device comprises a servo motor, a reduction gearbox and an air cylinder. The device has the beneficial effects that the device drives the upper jaw mounting plate to rotate through the driving device, so that the occlusion between the upper jaw and the lower jaw is realized, the occlusion between the upper jaw and the lower jaw is controlled through the air cylinder and the like, and the upper jaw and the lower jaw of different sizes can be replaced, so that the device can simulate the oral cavities of different types of dogs and cats and the like.

Description

Technical Field

[0001] This invention relates to the field of bite testing, specifically a bite testing device for dogs and cats. Background Technology

[0002] The statements in this section are merely background information related to the present invention and do not necessarily constitute prior art.

[0003] With societal development, pet ownership has become widespread, leading to the emergence of pet healthcare, food, clothing, toys, and more. Pet hygiene and health have also become a major concern for pet owners. In daily life, food residue accumulates in pets' mouths, resulting in plaque adhering to the tooth surface and between teeth. Therefore, people mostly use oral hygiene products to clean their pets' mouths. However, during cleaning, the pet's teeth are in a biting position, making it impossible to thoroughly clean the entire mouth. Furthermore, it's impossible to identify uncleaned areas in the pet's mouth. By simulating the pet's biting action and cleaning a mold, it's possible to identify uncleaned areas in the pet's mouth and perform a secondary cleaning to ensure the pet's oral hygiene.

[0004] Different pets have different bite forces, and whether the degree of bite occlusion affects oral cleaning remains to be investigated. Therefore, in order to better simulate the pet's oral cavity and bite occlusion, this study aims to facilitate oral cleaning.

[0005] For pets, the constant chewing of their teeth causes food residue to accumulate. However, the amount of food residue varies in different areas, resulting in different cleaning levels required for different parts of the pet's mouth. Therefore, in order to maintain the cleanliness of a pet's mouth and effectively clean different areas, a problem needs to be solved: how to simulate a pet's chewing action to determine the distribution of tartar in the pet's mouth and thus facilitate oral cleaning. Summary of the Invention

[0006] The purpose of this invention is to provide a dog and cat bite testing device. This device uses a drive mechanism to rotate the upper jaw mounting plate, thereby achieving bite between the upper and lower jaws. Controlling the bite force between the upper and lower jaws via cylinders or similar devices allows for a more vivid and realistic simulation of pet teeth. Furthermore, the device allows for the replacement of upper and lower jaws of different sizes, enabling it to simulate the oral cavity of different breeds of dogs and cats. When food debris, artificial tartar, etc., are placed between the upper and lower jaws, the bite action allows the device to easily reveal the location of the tartar. Using pre-purchased pet oral hygiene products, the device can observe the areas left after cleaning, facilitating secondary cleaning by the user. It can also test the effectiveness of various pet oral hygiene products.

[0007] To achieve the above objectives, the present invention employs the following technical solution:

[0008] A dog and cat bite testing device includes a housing, a drive unit, and a bite device. The housing is disposed outside the drive unit and the bite device. The bite device includes an upper jaw, a lower jaw, an upper jaw mounting plate for fixing the upper jaw, and a lower jaw mounting plate for fixing the lower jaw. One end of the upper jaw mounting plate is connected to the drive unit, and the drive unit controls the rotation of the upper jaw mounting plate to achieve bite between the upper and lower jaws. The lower jaw mounting plate is connected to the housing. The drive unit includes a servo motor, a gearbox, and a cylinder. The output end of the servo motor is equipped with a gearbox, and one side of the gearbox is equipped with an eccentric wheel. The cylinder is connected to the gearbox through the eccentric wheel, and the other end of the cylinder is connected to the upper jaw mounting plate.

[0009] The upper jaw mounting plate has a rotating shaft in the middle, and the upper jaw mounting plate rotates around the rotating shaft; the upper jaw mounting plate is rotatably connected to the cylinder, and the vertical height of the upper jaw mounting plate rotation is less than the diameter of the eccentric wheel.

[0010] A pressure sensor is located at the bottom of the lower jaw mounting plate, which detects the biting force between the upper and lower jaws. The lower jaw mounting plate is I-shaped, with a groove on its upper surface connecting to the lower jaw. A support plate is located at the bottom of the lower jaw mounting plate, and the pressure sensor is positioned between the support plate and the pressure sensor. The support plate is convex, and the lower jaw mounting plate and the support plate are threaded together. The groove on the lower surface of the lower jaw mounting plate slides and is limited in place with the support plate. Barrier plates are located around the lower jaw mounting plate, and these barrier plates are connected to the side walls of the lower jaw mounting plate.

[0011] The height adjustment device adjusts the height of the upper jaw mounting plate. The device includes an adjusting handwheel and a fixed plate. The fixed plate is connected to a rotating shaft on the upper jaw mounting plate. The adjusting handwheel controls the up-and-down movement of the fixed plate. A limiting plate with a slot on the outside of the fixed plate connects the fixed plate to the limiting plate with a fastening bolt. The fixed plate includes an upper fixed plate and side fixed plates, which are bolted to the limiting plates. The upper fixed plate is arranged in a right-angled triangle, and its inclined surface limits the rotation angle of the upper jaw mounting plate.

[0012] The housing includes a support frame, a baffle, and a protective cover disposed outside the engagement device. The protective cover is rotatably connected to the support frame, and the baffle is connected to the support frame and protects the internal structure of the housing. The protective cover is made of transparent material.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] This device uses a drive mechanism to rotate the upper jaw mounting plate, thereby achieving the bite between the upper and lower jaws. Controlling the biting force between the upper and lower jaws via cylinders allows for a more vivid and realistic simulation of pet teeth. Furthermore, the device allows for the replacement of upper and lower jaws of different sizes, enabling it to simulate the mouths of various dog and cat breeds. When food debris or artificial tartar is placed between the upper and lower jaws, the bite action allows the device to easily visualize the location of the tartar. Using pre-purchased pet oral hygiene products, users can observe the areas left after cleaning, facilitating secondary cleaning. The device can also be used to test the effectiveness of various pet oral hygiene products. Attached Figure Description

[0015] Appendix Figure 1 This is a schematic diagram of a dog and cat bite test device according to the present invention.

[0016] Appendix Figure 2 It is an appendix to this invention Figure 1 A magnified view of a portion of the image.

[0017] Appendix Figure 3 This is a schematic diagram of the internal structure of a dog and cat bite test device according to the present invention.

[0018] Appendix Figure 4 This is a schematic diagram of a dog and cat bite testing device according to the present invention.

[0019] Appendix Figure 5 This is a partial schematic diagram of a dog and cat bite testing device according to the present invention.

[0020] Appendix Figure 6 This is a schematic diagram of the height adjustment device in this invention.

[0021] Appendix Figure 7 This is a schematic diagram of the upper jaw mounting plate in this invention.

[0022] Appendix Figure 8 This is a schematic diagram of the jaw mounting plate in this invention.

[0023] Appendix Figure 9 This is a schematic diagram of the maxilla in this invention.

[0024] Appendix Figure 10 This is a schematic diagram of the mandible in this invention.

[0025] Appendix Figure 11 This is a schematic diagram of the pressure sensor location in this invention.

[0026] Appendix Figure 12 This is a schematic diagram of the operation of a dog and cat bite test device in this invention.

[0027] The markings shown in the attached figure:

[0028] 1. Housing; 2. Drive unit; 3. Engaging device; 4. Upper jaw; 5. Lower jaw; 6. Upper jaw mounting plate; 7. Lower jaw mounting plate; 8. Servo motor; 9. Gearbox; 10. Cylinder; 11. Eccentric wheel; 12. Rotating shaft; 13. Pressure sensor; 14. Support plate; 15. Barrier plate; 16. Height adjustment device; 17. Adjustment handwheel; 18. Fixing plate; 19. Slot; 20. Fastening bolt; 21. Upper fixing plate; 22. Side fixing plate; 23. Support frame; 24. Baffle; 25. Protective cover; 26. Limiting hole; 27. Limiting plate. Detailed Implementation

[0029] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined in this application.

[0030] This invention relates to a dog and cat bite test device. The main structure includes a housing 1, a drive device 2, a bite device 3, and a height adjustment device 16. The drive device 2 controls the movement of the bite device 3 to achieve continuous biting, enabling the bite device 3 to be used for testing. To simulate a pet's mouth, the bite device 3 includes an upper jaw 4 and a lower jaw 5. The meshing of the upper jaw 4 and lower jaw 5 simulates a pet's mouth. To simulate pet mouths of different sizes, the height adjustment device 16 controls the height between the upper and lower jaws 5 in the bite device 3, allowing for the installation of upper and lower jaws of different sizes to simulate pet mouths of different sizes. The drive device 2 then controls the biting action and the biting force to simulate a pet chewing food and observe the distribution of tartar. The housing 1 surrounds the drive device 2, bite device 3, and height adjustment device 16, serving a corrosion-resistant function and preventing interference from foreign objects to the internal components.

[0031] The housing 1 includes a support frame 23, a baffle 24, and a protective cover 25 disposed outside the biting device 3. The support frame 23 is arranged around the perimeter and connected to the baffle 24, allowing the baffle 24 to protect the internal device. The baffle 24 at the bottom of the biting device 3 also has a slot 19, which allows the drive device 2 to connect to the biting device 3 and provides good support for it. The baffle 24 and the protective cover 25 cooperate to protect the biting device 3. The protective cover 25 is used to prevent food residue from splashing out during testing. The protective cover 25 is made of transparent glass, plastic, or other materials, allowing laboratory personnel to observe the biting process. The protective cover 25 is rotatably connected to the support frame 23, allowing operators to easily open the protective cover 25 to operate the biting device 3. An indicator light is provided on the baffle 24 at the front of the device (in the direction pointed to by the upper and lower jaws 5 on the occlusal device 3), which is used to facilitate observation and operation of the occlusal device 3. Since the movement of the occlusal device 3 can be divided into manual and automatic operation, the illuminated lights represent different operations. Automatic operation of the occlusal device 3 is controlled by a PLC program, while manual operation is controlled by the operator via buttons.

[0032] The drive unit 2 includes a servo motor 8, a reduction gearbox 9, and a cylinder 10. A reduction gearbox 9 is located at the output end of the servo motor 8. The reduction gearbox 9 reduces the output speed of the servo motor 8, driving the rotation of the cylinder 10. The reduction gearbox 9 and the cylinder 10 are connected via an eccentric wheel 11 on one side of the reduction gearbox 9. The servo motor 8 starts, driving the eccentric wheel 11 to rotate, which in turn drives the cylinder 10 to move up and down, controlling the engagement of the upper jaw 4 in the engagement device 3. The piston rod of the cylinder 10 is rotatably connected to the upper jaw 4, allowing the cylinder 10 to maintain a vertical position when the upper jaw 4 rotates. Since the eccentric wheel 11 on one side of the reduction gearbox rotates, and there is a displacement difference during rotation, and the upper jaw 4 also has a displacement height difference during rotation, the cylinder 10 is chosen as the connecting device to ensure proper rotation of the upper jaw 4. A certain amount of gas is stored inside the cylinder 10, and the diameter of the eccentric wheel 11 is greater than or equal to the displacement height difference of the upper jaw 4 during rotation. This allows the upper jaw 4 to bite (the gas inside cylinder 10 is compressed, causing the upper jaw 4 to bite). The diameter of the eccentric wheel 11 is greater than or equal to the displacement height of the upper jaw 4 because only the servo motor 8 needs to move during the entire operation. If the diameter of the eccentric wheel 11 is smaller than the displacement height of the upper jaw 4, then the cylinder 10 needs to be vented and emptied, resulting in wasted resources and increased difficulty in maintaining the same bite force each time. Therefore, when the biting device 3 bites again, the cylinder 10 is adjusted first, and then the servo motor 8 is started, ensuring that the biting force of the biting device 3 is the same during this period, guaranteeing the accuracy of the bite force. Furthermore, the advantage of using cylinder 10 in this device is that when it is necessary to adjust the simulation of different sized pet mouths, only the height of the upper jaw 4 needs to be adjusted and the cylinder 10 needs to be inflated. This facilitates the operation of the device for experiments.

[0033] The occlusal device 3 includes an upper jaw 4, a lower jaw 5, an upper jaw mounting plate 6 for fixing the upper jaw 4, and a lower jaw mounting plate 7 for fixing the lower jaw 5. The upper jaw 4 and the upper jaw mounting plate 6, and the lower jaw 5 and the lower jaw mounting plate 7 are detachably connected, allowing the device to adapt to pets with different mouth sizes. One end of the upper jaw mounting plate 6 is connected to the drive device 2, specifically, one end of the upper jaw mounting plate 6 is connected to the piston rod of the cylinder 10. To enable the upper jaw mounting plate 6 to rotate, a rotating shaft 12 is provided in the middle of the upper jaw mounting plate 6, allowing the upper jaw mounting plate 6 to rotate around the rotating shaft 12. The rotating shaft 12 is connected to a height adjustment device 16 and indirectly to the housing 1, providing a fixing force for the upper jaw 4 and the upper jaw mounting plate 6. This allows the upper jaw 4 to be rotated by the drive device 2, thereby engaging with the lower jaw 5. When the lower jaw 5 and upper jaw 4 bite together, to minimize the need for component replacement due to the different sizes of the upper and lower jaws 5, a row of threaded holes is provided at the bottom of the lower jaw 5. The lower jaw 5 is connected to the lower jaw mounting plate 7 through these threaded holes. When the gear of the lower jaw 5 to be fixed is relatively large, it can be fixed by selecting the corresponding threaded hole on the lower jaw mounting plate 7, thus allowing one lower jaw mounting plate 7 to adapt to different sizes of lower jaws 5. Furthermore, for better fixation, the lower jaw mounting plate 7 is designed in an "I" shape. That is, the groove on the upper surface of the "I"-shaped mounting plate connects to the lower jaw mounting plate 7, while a support plate 14 is provided on the lower surface of the "I"-shaped mounting plate. The support plate 14 supports the lower jaw mounting plate 7, and a pressure sensor 13 is provided between the support plate 14 and the lower jaw mounting plate 7 to monitor the biting force between the upper jaw 4 and lower jaw 5, thereby simulating the action of different pet oral cavity functions. The support plate 14 is designed to connect with the lower jaw mounting plate 7, with its upper surface being convex. The lower jaw mounting plate 7 and the support plate 14 are also designed for sliding and limiting. When different sizes of upper and lower jaws 5 are selected, the distance between the upper jaw 4 and lower jaw 5 can be adjusted using the height adjustment device 16. Then, by adjusting the relative positions of the lower jaw mounting plate 7, the lower jaw 5, and the support plate 14, the lower jaw 5 can be allowed to bite with different sizes of upper jaws 4 (the rotation of the upper jaw 4 can be considered as a circle, with the rotation axis 12 as the center. When the size of the upper jaw 4 changes, the center of the circle changes, and the size of the circle also changes. To achieve better biting with the lower jaw 5, the lower jaw 5 needs to be finely adjusted to allow the upper and lower jaws to mesh). The biting action between the upper jaw 4 and lower jaw 5 is shown in the attached diagram of the instruction manual. Figure 5As shown, this device can be used for biting on upper and lower jaws 5 of different sizes. To prevent food residue from splashing out during experiments, barrier plates 15 are provided around the lower jaw mounting plate 7. These barrier plates 15 are connected to the side walls of the lower jaw mounting plate 7, and the barrier plates 15 located on both sides of the lower jaw 5 require some bending to ensure proper installation and prevent food residue from splashing out.

[0034] The height adjustment device 16 includes an adjustment handwheel 17 and a fixing plate 18. The height adjustment device 16 is designed to better simulate the mouths of pets of different sizes; therefore, it is adjusted by changing the height of the upper jaw mounting plate 6. Rotating the adjustment handwheel 17 moves the fixing plate 18 up and down, thereby moving the upper jaw 4 fixing plate 18. The fixing plate 18 includes an upper fixing plate 21 and a side fixing plate 22, which are connected. The upper fixing plate 21 and the side fixing plate 22 can be integrally cast or fixed by threads or other methods. A limiting plate 27 is provided on the outer side of the fixing plate 18. The limiting plate 27 provides support for the height adjustment device 16, allowing the side fixing plate 22 to be fixed and raised / lowered via the adjustment handwheel 17. The height of the fixing plate 18 varies depending on the pet's oral cavity. Therefore, to better secure the fixing plate 18, the limiting plate 27 has a slot 19 with a fastening bolt 20 at the slot. The fastening bolt 20 connects to the threaded hole on the side fixing plate 22, and tightening the bolt connects the side fixing plate 22 to the limiting plate 27. The top of the limiting plate 27 has a limiting hole 26, which allows the fixing plate 18 to move upwards when the adjusting handwheel 17 is turned, rather than downwards. When the upper jaw mounting plate 6 reaches the designated height, to prevent excessive rotation and unnecessary waste of time or the accumulation of artificial tartar on the upper and lower jaws 5, the rotation angle of the upper jaw mounting plate 6 needs to be limited. Therefore, the upper fixing plate 21 is set in a right-angled triangle, and the inclined surface of the upper fixing plate 21 contacts the rotated upper jaw mounting plate 6, thereby preventing the upper jaw mounting plate 6 from continuing to rotate, so that the rotation range of the upper jaw mounting plate 6 is a fixed value.

[0035] Detailed instructions for use:

[0036] In use, the upper jaw 4 is first fixed to the upper jaw mounting plate 6, and the lower jaw 5 is fixed to the lower jaw mounting plate 7. Then, the upper jaw 4 and lower jaw 5 are engaged by rotating the adjusting handwheel 17. At this time, a certain amount of gas is injected into the cylinder 10 on the drive device 2. The servo motor 8 drives the cylinder, and the pressure sensor 13 is measured. If the value is too high, some gas can be released from the cylinder 10; if the value is too low, gas can be continued to be injected into the cylinder 10, allowing the cylinder 10 to control the engagement of the upper jaw 4 and the force of the engagement. This provides a better simulation of a pet's oral cavity. When it is necessary to replace the upper and lower jaws 5, the upper jaw mounting plate 6 is adjusted to its highest point. After replacing the upper and lower jaws 5, they are aligned, and the above operation is repeated for testing.

[0037] During testing, the protective cover 25 needs to be lowered to ensure operator safety and minimize the impact on the experiment. This device can be controlled automatically or manually. Automatic control is achieved through a PLC, while manual control is via buttons, enabling the upper jaw 4 and lower jaw 5 to engage.

[0038] In summary, this device uses the drive device 2 to rotate the upper jaw mounting plate 6, thereby achieving the bite between the upper jaw 4 and the lower jaw 5. The control of the biting force between the upper jaw 4 and the lower jaw 5 via the cylinder 10 and other means allows for a more vivid and realistic simulation of pet teeth. Furthermore, the device allows for the replacement of upper jaw 4 and lower jaw 5 of different sizes, enabling it to simulate the mouths of different breeds of dogs and cats. When food debris, artificial tartar, etc., are placed between the upper jaw 4 and the lower jaw 5, the bite between them allows the device to more easily display the location of the tartar. Using pre-purchased pet oral hygiene products, the device can observe the areas left after cleaning, facilitating secondary cleaning by the user. It can also be used to test the effectiveness of various pet oral hygiene products.

Claims

1. A dog and cat bite test device, characterized in that: It includes a housing (1), a drive device (2), and a biting device (3), wherein the housing (1) is disposed on the outside of the drive device (2) and the biting device (3); The biting device (3) includes an upper jaw (4), a lower jaw (5), an upper jaw mounting plate (6) for fixing the upper jaw (4), and a lower jaw mounting plate (7) for fixing the lower jaw (5). One end of the upper jaw mounting plate (6) is connected to the driving device (2). The driving device (2) controls the rotation of the upper jaw mounting plate (6) to achieve biting of the upper jaw (4) and the lower jaw (5). The lower jaw mounting plate (7) is connected to the housing (1). The drive device (2) includes a servo motor (8), a gearbox (9), and a cylinder (10). The output end of the servo motor (8) is provided with a gearbox (9). An eccentric wheel (11) is provided on one side of the gearbox (9). The cylinder (10) is connected to the gearbox (9) through the eccentric wheel (11). The other end of the cylinder (10) is connected to the upper jaw mounting plate (6).

2. The dog and cat bite test device according to claim 1, characterized in that: The upper jaw mounting plate (6) has a rotating shaft (12) in the middle, and the upper jaw mounting plate (6) rotates around the rotating shaft (12); The lower jaw mounting plate (7) is equipped with a pressure sensor (13) at the bottom, which detects the biting force between the upper jaw (4) and the lower jaw (5).

3. The dog and cat bite test device according to claim 2, characterized in that: The upper jaw mounting plate (6) is rotatably connected to the cylinder (10), and the vertical rotation height of the upper jaw mounting plate (6) is less than the diameter of the eccentric wheel (11).

4. The dog and cat bite test device according to claim 3, characterized in that: The lower jaw mounting plate (7) is in the shape of an "I". The groove on the upper surface of the lower jaw mounting plate (7) is connected to the lower jaw (5). The lower jaw mounting plate (7) has a support plate (14) at the bottom. The pressure sensor (13) is located between the support plate (14) and the pressure sensor (13). The support plate (14) is in the shape of a "convex". The lower jaw mounting plate (7) and the support plate (14) are threaded together.

5. The dog and cat bite test device according to claim 4, characterized in that: The groove on the lower surface of the jaw mounting plate (7) is slidably limited between the support plate (14).

6. The dog and cat bite test device according to claim 5, characterized in that: The jaw mounting plate (7) is provided with a barrier plate (15) around its perimeter, and the barrier plate (15) is connected to the side wall of the jaw mounting plate (7).

7. The dog and cat bite test device according to claim 6, characterized in that: It also includes a height adjustment device (16), which adjusts the height of the upper jaw mounting plate (6). The height adjustment device (16) includes an adjustment handwheel (17) and a fixing plate (18). The fixing plate (18) is connected to the rotating shaft (12) on the upper jaw mounting plate (6). The adjustment handwheel (17) controls the up and down movement of the fixing plate (18). The fixed plate (18) is provided with a limiting plate (27) on its outside. The limiting plate (27) is provided with a slot (19) and a fastening bolt (20) is provided on the slot (19). The fastening bolt (20) connects the fixed plate (18) and the limiting plate (27).

8. The dog and cat bite test device according to claim 7, characterized in that: The fixing plate (18) includes an upper fixing plate (21) and a side fixing plate (22). The side fixing plate (22) is connected to the limiting plate (27) by bolts. The upper fixing plate (21) is arranged in a right-angled triangle. The inclined surface on the upper fixing plate (21) limits the rotation angle of the upper jaw mounting plate (6).

9. The dog and cat bite test device according to claim 8, characterized in that: The housing (1) includes a support frame (23), a baffle (24), and a protective cover (25) disposed outside the engagement device (3). The protective cover (25) is rotatably connected to the support frame (23), and the baffle (24) is connected to the support frame (23) and protects the internal structure of the housing (1).

10. The dog and cat bite test device according to claim 9, characterized in that: The protective cover (25) is made of transparent material.

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