Protection device capable of controlling gingival growth height and cuffs

Abstract

The invention discloses a protection device capable of controlling gingival growth height and cuffs, the protection device comprises a first screw rod, a planting assembly is arranged on the surface of the first screw rod, the planting assembly comprises a middle support rod, a first threaded column, a second screw rod, a gingival abutting ring and a top platform, the middle support rod is arranged at the top of the first screw rod, and the first threaded column is arranged at the top of the second screw rod. The bottom end of the middle supporting rod is fixedly connected with a first threaded column, the first threaded column is inserted into a first threaded groove formed in the top end of the first lead screw, the first threaded column is in threaded connection with the first lead screw, and the top end of the middle supporting rod is fixedly connected with a top platform. According to the gingival cuff protection device, the abutting tangent plane arranged on the surface of the gingival abutting ring abuts against the surfaces of the two adjacent teeth, the position of the gingival abutting ring is fixed, the bottom of the gingival abutting ring abuts against the gingival, growth of the gingival is controlled, and effective protection of the gingival cuff is achieved.

Description

Technical Field

[0001] The invention relates to the field of oral medical treatment, in particular to a protective device capable of controlling the growth height of gums and cuffs. Background Art

[0002] Dental implants are a method of dental restoration that replaces missing teeth through surgery. This method of dental restoration can provide long-term and stable results, and has an appearance and function close to natural teeth. The health and growth of the gums play a vital role in oral treatments such as dental restoration and dental implants. For the special area of ​​the gingival cuff, traditional methods cannot simultaneously meet the requirements of controlling the gingival growth height and effectively protecting the gingival cuff, and cannot ensure that the gums after oral treatment grow in the appropriate position and maintain a stable state. Summary of the invention

[0003] Therefore, in order to solve the above-mentioned shortcomings, the present invention provides a protective device capable of controlling the gum growth height and the cuff.

[0004] The present invention is implemented by constructing a protective device capable of controlling the gum growth height and the cuff, comprising a first screw rod; The surface of the first screw rod is provided with an implant assembly, and the implant assembly includes a middle support rod, a first threaded column, a second screw rod, a gum abutment ring and a top platform. The top of the first screw rod is provided with a middle support rod, and the bottom end of the middle support rod is fixedly connected with a first threaded column, the first threaded column is inserted into a first threaded groove provided at the top end of the first screw rod, the first threaded column and the first screw rod are threadedly connected, the top end of the middle support rod is fixedly connected with a top platform, a second screw rod is provided above the top platform, and a gum abutment ring is sleeved on the surface of the second screw rod; A mounting assembly is disposed on the surface of the top platform, and a limiting assembly is disposed inside the second screw rod.

[0005] Preferably, the second screw rod is threadedly connected to the gum abutment ring, and the surface of the gum abutment ring is provided with six abutment cut surfaces in a ring array.

[0006] Preferably, the mounting assembly includes a truncated cone-shaped connecting block, a circular plug rod and a second threaded column; the top platform is fixedly connected to a side of the top platform away from the middle support rod with a truncated cone-shaped connecting block; a circular plug rod is inserted into a built-in through hole opened inside the second screw rod; the bottom end of the circular plug rod is fixedly connected to a second threaded column; the second threaded column is inserted into a second threaded groove opened in a side of the truncated cone-shaped connecting block away from the top platform; the second threaded column and the truncated cone-shaped connecting block are threadedly connected.

[0007] Preferably, the mounting assembly also includes a limit stop ring, a limit stop ring is sleeved on the surface of the second threaded column, the limit stop ring is located inside the built-in through hole, the limit stop ring is fixedly connected to the second screw rod, the limit stop ring is slidably connected to the second threaded column, the bottom end of the circular insert rod is in contact with the surface of the limit stop ring, and a hexagonal slot is provided on the top of the circular insert rod.

[0008] Preferably, the surface of the truncated cone-shaped connecting block is provided with six longitudinal sections in a circular array, the bottom end of the second screw rod is provided with a wedging groove matching the appearance of the truncated cone-shaped connecting block, the wedging groove is connected to the interior of the built-in through hole, and the truncated cone-shaped connecting block is inserted into the interior of the wedging groove.

[0009] Preferably, the limiting assembly includes a connecting round rod and a cross plate, the connecting round rod is inserted into a longitudinal slot opened inside the circular insertion rod, a cross plate is arranged in a rectangular groove opened inside the circular insertion rod, and the connecting round rod and the cross plate are both slidably connected to the circular insertion rod.

[0010] Preferably, the limiting assembly also includes a spring, a shaft cylinder and a plug-in shaft. The bottom surface of the cross plate is fixedly connected to the shaft cylinder, the plug-in shaft is inserted into the shaft cylinder, a spring is arranged inside the shaft cylinder, both ends of the spring are respectively fixedly connected to the plug-in shaft and the cross plate, and the plug-in shaft and the shaft cylinder are slidably connected.

[0011] Preferably, the limit assembly also includes a built-in sliding rod, a connecting rod, a first baffle and a second baffle, the circular plug rod has two auxiliary sliding grooves symmetrically arranged inside the circular plug rod and connected to the interior of the rectangular groove, and a built-in sliding rod is inserted inside each of the auxiliary sliding grooves, the built-in sliding rod is slidably connected to the circular plug rod, the built-in sliding rod is located below the cross plate, the upper surface of each of the built-in sliding rods is fixedly connected to two second baffles, and a connecting rod is inserted between the two second baffles, the connecting rod is rotatably connected to the second baffle through an axle pin 1, the first baffle is provided at an end of the connecting rod away from the second baffle, the connecting rod is rotatably connected to the first baffle through an axle pin 2, the first baffle is fixedly connected to the bottom surface of the cross plate, and six built-in slots in a circular array are arranged inside the second screw rod, and the built-in slots are connected to the interior of the built-in through hole.

[0012] Preferably, the limiting assembly further comprises an elastic blocking pad, the elastic blocking pad is arranged inside the hexagonal slot, and the elastic blocking pad is fixedly connected to the circular insertion rod.

[0013] Preferably, the top end of the connecting round rod fits with the surface of the elastic barrier pad, and the top end of the connecting round rod is arc-shaped, and two sealing rings are sleeved on the surface of the circular plug rod.

[0014] The present invention has the following advantages: The present invention provides a protective device capable of controlling the gum growth height and the cuff through improvement, and compared with the same type of equipment, has the following improvements: The protective device capable of controlling the growth height of the gums and the cuff of the present invention is provided with an implant component, and the second screw is installed between two adjacent teeth. The gum abutment ring is provided through a threaded connection with the surface of the second screw, and can be moved in a vertical direction. The abutment section opened on the surface of the gum abutment ring abuts against the surfaces of the two adjacent teeth, thereby fixing the position of the gum abutment ring, and the bottom of the gum abuts against the gums, thereby controlling the growth of the gums, achieving effective protection of the gum cuff, and ensuring that the gums after oral treatment grow in a suitable position and maintain a stable state.

[0015] The protective device capable of controlling the gum growth height and the cuff of the present invention is advantageously configured with an installation assembly, so that the circular insertion rod is inserted into the interior of the second screw rod, and the circular insertion rod is rotated in the hexagonal slot with the help of an external tool so that the second threaded column is screwed into the interior of the second threaded groove, thereby realizing the connection between the second screw rod and the middle support rod and ensuring the firmness of the connection between the second screw rod and the middle support rod.

[0016] The protective device capable of controlling the gum growth height and the cuff of the present invention is advantageously provided with a limit assembly, which makes it possible for the two built-in slide rods to move toward each other when the tool is inserted into the interior of the hexagonal slot. After the position of the circular insertion rod inside the second screw rod is adjusted, the tool is pulled out from the interior of the hexagonal slot, so that the built-in slide rod is inserted into the built-in slot at the corresponding position. Under the restriction of the built-in slot and the built-in slide rod, the circular insertion rod cannot rotate, thereby ensuring the firmness of the connection between the circular insertion rod and the second screw rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 Sectional view at AA in the middle; Figure 3 For the present invention Figure 2 The enlarged view of point A in the middle; Figure 4 For the present invention Figure 2 The enlarged view of point B in the middle; Figure 5 It is a schematic structural diagram of the first threaded column and the middle support rod in the present invention; Figure 6 It is a schematic diagram of the structure of the truncated cone-shaped connecting block and the middle supporting rod in the present invention; Figure 7 It is a schematic diagram of the structure of the circular plug rod and the second threaded column in the present invention; Figure 8 It is a schematic diagram of the structure of the gum abutment ring and the second screw rod in the present invention; Fig. 9 It is a schematic diagram of the structure of the limit stop ring and the second screw rod in the present invention; Fig.10 It is a structural schematic diagram of the horizontal plate and the connecting round rod in the present invention; In the figure: 1. The first screw rod; 2. implant assembly; 21. middle support rod; 22. first thread groove; 23. first thread column; 24. second screw rod; 25. gingival abutment ring; 26. top platform; 3. Mounting assembly; 31. Cone-shaped connecting block; 32. Engagement groove; 33. Stop ring; 34. Round plug rod; 35. Second threaded column; 36. Second threaded groove; 37. Longitudinal section; 38. Hexagonal slot; 39. Built-in through hole; 4. Limiting assembly; 41. Elastic blocking pad; 42. Longitudinal slot; 43. Connecting round rod; 44. Rectangular slot; 45. Horizontal plate; 46. Built-in slot; 47. Built-in slide rod; 48. Auxiliary slide groove; 49. Connecting rod; 410. First baffle plate; 411. Second baffle plate; 412. Spring; 413. Shaft cylinder; 414. Plug-in shaft. DETAILED DESCRIPTION

[0018] The following will be combined with the attached Figure 1-10 The present invention is described in detail, and the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] See also Figure 1-10 , the protective device capable of controlling the gum growth height and the cuff of the present invention comprises a first screw rod 1; The surface of the first screw rod 1 is provided with an implant assembly 2, which includes a middle support rod 21, a first threaded column 23, a second screw rod 24, a gingival abutment ring 25 and a top platform 26. The top of the first screw rod 1 is provided with a middle support rod 21, and the bottom end of the middle support rod 21 is fixedly connected with the first threaded column 23, which is inserted into a first threaded groove 22 opened at the top end of the first screw rod 1. The first threaded column 23 is threadedly connected to the first screw rod 1, and the top end of the middle support rod 21 is fixedly connected with the first threaded column 23. A top platform 26 is fixedly connected, a second screw rod 24 is arranged above the top platform 26, a gingival abutment ring 25 is sleeved on the surface of the second screw rod 24, the second screw rod 24 and the gingival abutment ring 25 are threadedly connected, and six abutment sections in a circular array are provided on the surface of the gingival abutment ring 25. The abutment sections on the surface of the gingival abutment ring 25 abut against the surfaces of two adjacent teeth to fix the position of the gingival abutment ring 25, and its bottom abuts against the gums, thereby controlling the growth of the gums.

[0020] A mounting assembly 3 is provided on the surface of the top platform 26, and the mounting assembly 3 includes a truncated cone-shaped connecting block 31, a limit ring 33, a circular plug rod 34 and a second threaded column 35. The top platform 26 is fixedly connected to the truncated cone-shaped connecting block 31 on the side away from the middle support rod 21, and the circular plug rod 34 is inserted in the built-in through hole 39 opened in the second screw rod 24. The bottom end of the circular plug rod 34 is fixedly connected to the second threaded column 35, and the second threaded column 35 is inserted in the second threaded groove 36 opened in the side of the truncated cone-shaped connecting block 31 away from the top platform 26. The second threaded column 35 and the truncated cone-shaped connecting block 31 are threadedly connected.

[0021] A limit stop ring 33 is sleeved on the surface of the second threaded column 35, and the limit stop ring 33 is located inside the built-in through hole 39. The limit stop ring 33 is fixedly connected to the second screw rod 24, and the limit stop ring 33 is slidably connected to the second threaded column 35. The bottom end of the circular plug rod 34 fits with the surface of the limit stop ring 33, and the top end of the circular plug rod 34 is provided with a hexagonal slot 38. With the help of an external tool inserted in the hexagonal slot 38, the circular plug rod 34 can be rotated so that the second threaded column 35 is screwed into the inside of the second threaded groove 36.

[0022] The surface of the truncated cone-shaped connecting block 31 is provided with six longitudinal sections 37 in a circular array, and the bottom end of the second screw rod 24 is provided with a wedging groove 32 matching the appearance of the truncated cone-shaped connecting block 31. The wedging groove 32 is connected to the interior of the built-in through hole 39, and the truncated cone-shaped connecting block 31 is inserted into the interior of the wedging groove 32.

[0023] A limit assembly 4 is arranged inside the second screw rod 24, and the limit assembly 4 includes an elastic blocking pad 41, a connecting round rod 43, a spring 412, a shaft tube 413, a plug-in shaft 414, a cross plate 45, a built-in sliding rod 47, a connecting rod 49, a first baffle plate 410 and a second baffle plate 411. The connecting round rod 43 is inserted into a longitudinal slot 42 opened inside the circular plug rod 34, and a cross plate 45 is arranged in a rectangular groove 44 opened inside the circular plug rod 34. The connecting round rod 43 and the cross plate 45 are both slidably connected to the circular plug rod 34.

[0024] The bottom surface of the horizontal plate 45 is fixedly connected with a shaft cylinder 413, an insert shaft 414 is inserted inside the shaft cylinder 413, a spring 412 is arranged inside the shaft cylinder 413, both ends of the spring 412 are respectively fixedly connected with the insert shaft 414 and the horizontal plate 45, and the insert shaft 414 and the shaft cylinder 413 are slidably connected.

[0025] The circular insertion rod 34 is symmetrically provided with two auxiliary slide grooves 48 connected with the interior of the rectangular groove 44, and each auxiliary slide groove 48 is inserted with a built-in slide rod 47, which is slidably connected to the circular insertion rod 34 and is located below the cross plate 45. The upper surface of each built-in slide rod 47 is fixedly connected with two second baffles 411, and a connecting rod 49 is inserted between the two second baffles 411. The connecting rod 49 is rotatably connected to the second baffle 411 through an axle pin 1, and a first baffle 410 is provided at one end of the connecting rod 49 away from the second baffle 411. The connecting rod 49 is rotatably connected to the first baffle 410 through an axle pin 2, and the first baffle 410 is fixedly connected to the bottom surface of the cross plate 45. The interior of the second screw rod 24 is provided with six built-in slots 46 in a circular array, and the built-in slots 46 are connected to the interior of the built-in through hole 39.

[0026] An elastic blocking pad 41 is disposed inside the hexagonal slot 38 , and the elastic blocking pad 41 is fixedly connected to the circular insertion rod 34 .

[0027] The top end of the connecting round rod 43 fits with the surface of the elastic barrier pad 41, and the top end of the connecting round rod 43 is arc-shaped. The surface of the circular plug rod 34 is sleeved with two sealing rings. The surface of the elastic barrier pad 41 and the circular plug rod 34 are sleeved with two sealing rings to ensure the sealing of the device and thus extend the service life of the device. The setting of the elastic barrier pad 41 facilitates the fixation of the position of the circular plug rod 34 while ensuring the sealing of the device.

[0028] The present invention provides a protective device capable of controlling the gum growth height and the cuff through improvement, and its working principle is as follows; First, the setting of the middle support rod 21 facilitates the support of the second screw rod 24. The second screw rod 24 is installed between two adjacent teeth. The setting of the gum abutment ring 25 is connected to the surface of the second screw rod 24 by a thread, and can be moved in the vertical direction. The abutment section opened on the surface of the gum abutment ring 25 abuts against the surfaces of two adjacent teeth to fix the position of the gum abutment ring 25, and its bottom abuts against the gums, thereby controlling the growth of the gums, achieving effective protection of the gum cuff, and ensuring that the gums after oral treatment grow in a suitable position and maintain a stable state; Secondly, when the device needs to be installed, since the surface of the first screw rod 1 is inlaid with threads, it can be implanted on the gums with the help of external objects. By rotating the middle support rod 21, the first threaded column 23 is screwed into the inside of the first threaded groove 22. Under the action of the thread, the connection between the middle support rod 21 and the first screw rod 1 is achieved. The second screw rod 24 can be operated to make the second screw rod 24 sleeved on the surface of the truncated cone-shaped connecting block 31. When the second screw rod 24 is sleeved on the truncated cone-shaped connecting block 31, the gum abutment ring 25 does not contact the gums. When in contact, the second screw rod 24 can be removed and the gum abutment ring 25 can be rotated. Under the action of the thread, the position of the gum abutment ring 25 on the second screw rod 24 can be adjusted until the second screw rod 24 is sleeved on the truncated cone-shaped connecting block 31, and the gum abutment ring 25 just abuts against the gums. At this time, the position of the gum abutment ring 25 is adjusted. Since the abutment cut surface on the surface of the gum abutment ring 25 abuts against the surfaces of the two adjacent teeth, the position of the gum abutment ring 25 is fixed. By inserting the circular plug rod 34 A hexagonal slot 38 is provided at the top of the circular plug rod 34 inside the built-in through hole 39, so that the operator can use an external tool to rotate the circular plug rod 34, so that the second threaded column 35 at the bottom of the circular plug rod 34 can be screwed in the second threaded groove 36 until the bottom end of the circular plug rod 34 fits with the limit ring 33, thereby realizing the installation of the device. Since the truncated cone-shaped connecting block 31 is inserted into the inside of the wedging groove 32, and the shape of the wedging groove 32 matches the shape of the truncated cone-shaped connecting block 31, the longitudinal cutting Under the action of the surface 37, the position of the second screw rod 24 is fixed, and the problem of the second screw rod 24 rotating after the device is installed is avoided. It is beneficial to insert the round plug rod 34 into the second screw rod 24, and insert the round plug rod 34 into the hexagonal slot 38 with the help of an external tool to rotate the round plug rod 34 so that the second threaded column 35 is screwed into the second threaded groove 36, thereby realizing the connection between the second screw rod 24 and the middle support rod 21, and ensuring the firmness of the connection between the second screw rod 24 and the middle support rod 21; Third, when installing the device, the operator inserts the external tool into the hexagonal slot 38. When the tool contacts the elastic barrier pad 41, a force is applied to the elastic barrier pad 41. Since the elastic barrier pad 41 is elastic, a force is applied to the connecting rod 43, so that the connecting rod 43 slides inside the longitudinal slot 42. The movement of the connecting rod 43 drives the cross plate 45 to move synchronously. Under the action of the connecting rod 49, the built-in sliding rod 47 is driven to move, so that the two built-in sliding rods 47 move in opposite directions. At this time, the movement of the cross plate 45 causes the plug-in shaft 414 to slide inside the shaft tube 413, thereby compressing the spring 412. When the bottom end of the circular plug rod 34 fits with the surface of the limit ring 33, the adjustment of the position of the circular plug rod 34 is completed at this time, so that the tool slides out from the inside of the hexagonal slot 38. Under the action of the elastic potential energy of the spring 412 The horizontal plate 45 is used to move upward. The movement of the horizontal plate 45 drives the built-in sliding rod 47 to move in the direction away from each other through the two connecting rods 49 until the built-in sliding rod 47 is inserted into the built-in slot 46. The circular plug rod 34 cannot rotate under the restriction of the built-in slot 46 and the built-in sliding rod 47, which is beneficial for moving the two built-in sliding rods 47 towards each other when the tool is inserted into the hexagonal slot 38. When the position of the circular plug rod 34 inside the second screw rod 24 is adjusted, the tool is withdrawn from the inside of the hexagonal slot 38, so that the built-in sliding rod 47 is inserted into the built-in slot 46 at the corresponding position. The circular plug rod 34 cannot rotate under the restriction of the built-in slot 46 and the built-in sliding rod 47, thereby ensuring the firmness of the connection between the circular plug rod 34 and the second screw rod 24 and avoiding the problem of the circular plug rod 34 easily rotating inside the second screw rod 24.

[0029] The above shows and describes the basic principle, main features and advantages of the present invention, and the standard parts used in the present invention can be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0030] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A protective device capable of controlling the gum growth height and the cuff, comprising a first screw (1); Features: An implant assembly (2) is arranged on the surface of the first screw rod (1), and the implant assembly (2) comprises a middle support rod (21), a first threaded column (23), a second screw rod (24), a gingival abutment ring (25) and a top platform (26); the middle support rod (21) is arranged on the top of the first screw rod (1); the bottom end of the middle support rod (21) is fixedly connected to the first threaded column (23); the first threaded column (23) is inserted into a first threaded groove (22) provided at the top end of the first screw rod (1); the first threaded column (23) and the first screw rod (1) are threadedly connected; the top end of the middle support rod (21) is fixedly connected to the top platform (26); the second screw rod (24) is arranged above the top platform (26); and the surface of the second screw rod (24) is sleeved with a gingival abutment ring (25); A mounting assembly (3) is disposed on the surface of the top platform (26), and a limiting assembly (4) is disposed inside the second screw rod (24).

2. The protective device capable of controlling the gum growth height and the cuff according to claim 1, characterized in that: The second screw rod (24) is threadedly connected to the gum abutment ring (25), and the surface of the gum abutment ring (25) is provided with six abutment cut surfaces in a ring array.

3. The protective device capable of controlling the gum growth height and the cuff according to claim 1, characterized in that: The mounting assembly (3) comprises a truncated cone-shaped connecting block (31), a circular insert rod (34) and a second threaded column (35); a side of the top platform (26) away from the middle support rod (21) is fixedly connected to the truncated cone-shaped connecting block (31); a circular insert rod (34) is inserted into a built-in through hole (39) provided inside the second screw rod (24); a bottom end of the circular insert rod (34) is fixedly connected to the second threaded column (35); the second threaded column (35) is inserted into a second threaded groove (36) provided on a side of the truncated cone-shaped connecting block (31) away from the top platform (26); and the second threaded column (35) and the truncated cone-shaped connecting block (31) are threadedly connected.

4. The protective device capable of controlling the gum growth height and the cuff according to claim 3, characterized in that: The mounting assembly (3) further comprises a limit stop ring (33), the surface of the second threaded column (35) is sleeved with the limit stop ring (33), the limit stop ring (33) is located inside the built-in through hole (39), the limit stop ring (33) and the second screw rod (24) are fixedly connected, the limit stop ring (33) and the second threaded column (35) are slidably connected, the bottom end of the circular plug rod (34) is in contact with the surface of the limit stop ring (33), and the top end of the circular plug rod (34) is provided with a hexagonal slot (38).

5. The protective device capable of controlling the gum growth height and the cuff according to claim 3, characterized in that: The surface of the truncated cone-shaped connecting block (31) is provided with six longitudinal sections (37) in a ring array, and the bottom end of the second screw rod (24) is provided with a wedging groove (32) matching the outer shape of the truncated cone-shaped connecting block (31), the wedging groove (32) and the interior of the built-in through hole (39) are connected, and the truncated cone-shaped connecting block (31) is inserted into the interior of the wedging groove (32).

6. The protective device capable of controlling the gum growth height and the cuff according to claim 1, characterized in that: The limiting assembly (4) comprises a connecting round rod (43) and a transverse plate (45); the connecting round rod (43) is inserted into a longitudinal slot (42) provided inside the circular insertion rod (34); a transverse plate (45) is provided in a rectangular slot (44) provided inside the circular insertion rod (34); and the connecting round rod (43) and the transverse plate (45) are both slidably connected to the circular insertion rod (34).

7. The protective device capable of controlling the gum growth height and the cuff according to claim 6, characterized in that: The limit assembly (4) further comprises a spring (412), a shaft cylinder (413) and a plug-in shaft (414); the shaft cylinder (413) is fixedly connected to the bottom surface of the transverse plate (45); the plug-in shaft (414) is inserted into the shaft cylinder (413); a spring (412) is arranged inside the shaft cylinder (413); two ends of the spring (412) are respectively fixedly connected to the plug-in shaft (414) and the transverse plate (45); the plug-in shaft (414) and the shaft cylinder (413) are slidably connected.

8. The protective device capable of controlling the gum growth height and the cuff according to claim 3, characterized in that: The limiting assembly (4) further comprises a built-in sliding rod (47), a connecting rod (49), a first baffle (410) and a second baffle (411); the circular plug rod (34) is symmetrically provided with two auxiliary sliding grooves (48) which are connected to the interior of the rectangular groove (44); each of the auxiliary sliding grooves (48) is provided with a built-in sliding rod (47); the built-in sliding rod (47) is slidably connected to the circular plug rod (34); the built-in sliding rod (47) is located below the horizontal plate (45); the upper surface of each built-in sliding rod (47) is fixedly connected to two second baffles (411), and the two second baffles (411) are fixedly connected to the upper surface of the two second baffles (411). A connecting rod (49) is inserted between the second baffles (411); the connecting rod (49) is rotatably connected to the second baffle (411) via a first axle pin; a first baffle (410) is provided at one end of the connecting rod (49) away from the second baffle (411); the connecting rod (49) is rotatably connected to the first baffle (410) via a second axle pin; the first baffle (410) is fixedly connected to the bottom surface of the transverse plate (45); six built-in slots (46) in a circular array are provided inside the second screw rod (24); the built-in slots (46) are communicated with the inside of the built-in through hole (39).

9. The protective device capable of controlling the gum growth height and the cuff according to claim 4, characterized in that: The limiting assembly (4) further comprises an elastic blocking pad (41), the elastic blocking pad (41) being arranged inside the hexagonal slot (38), and the elastic blocking pad (41) being fixedly connected to the circular insertion rod (34).

10. The protective device capable of controlling the gum growth height and the cuff according to claim 6, characterized in that: The top end of the connecting round rod (43) fits the surface of the elastic barrier pad (41), and the top end of the connecting round rod (43) is in an arc shape. The surface of the circular insertion rod (34) is sleeved with two sealing rings.

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