CN111982652A - Dental implant fatigue test loading assembly - Google Patents

Abstract

The invention discloses a dental implant fatigue test loading assembly, wherein the dental implant fatigue test loading assembly includes a mounting block, a limiting device, a connecting block and a loading component. The mounting block is installed on the limiting device, the first through hole on the limiting device communicates with the first groove, the connecting block is arranged in the first groove of the limiting device, the connecting block and the limiting device can slide relative to each other, and the loading The component is installed on the connecting block, so that both the connecting block and the loading component have a certain degree of freedom in the horizontal direction, and a plurality of ball-head plunger assemblies are also arranged in contact with the connecting block. Through the dental implant fatigue test loading assembly of the present invention, the connecting block and the loading part move with the movement of the loading cap, so that the load acts on the center point of the loading cap more accurately, and no additional load is generated; The limitation of the displacement of the loading part by the plug assembly can also ensure the stability during the detection process and improve the detection accuracy.

Description

Dental Implant Fatigue Test Loading Assembly

technical field

The invention relates to dental implant testing equipment, in particular to a dental implant fatigue test loading component.

Background technique

A dental implant is a device that is surgically implanted into the upper and lower jaws of the edentulous part of the human body. After the wound is healed, an abutment and a prosthesis are installed on the upper part. After the installation is completed, it will bear the load repeatedly under the action of chewing force. After a long time of use, there may be a risk of fracture due to fatigue stress, which affects the experience of using dental implants. Therefore, it is necessary to strictly follow national standards for dental implants. Dynamic fatigue testing is performed to detect the maximum stress that a dental implant can withstand.

The loading cap of the dental implant is set to a curved surface, so the most commonly used loading components at present use point contact to transfer the dynamic load to the dental implant. The loading cap of the dental implant will be offset after being compressed. The loading component cannot move with the movement of the loading cap, resulting in the failure of the load to act on the center point of the loading cap accurately during the test, resulting in errors in the test results. The universal joint of the loading assembly can achieve no lateral restraint. The universal joint is composed of a pair of hinges, allowing an included angle between the two axes of a pair of hinges. The angle can still be rotated normally if the angle changes. Therefore, the universal joint is used. The head will also cause additional dynamic load, which will cause the universal joint to be easily damaged and the detection instability will affect the detection results.

SUMMARY OF THE INVENTION

The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a loading component for fatigue testing of dental implants, which can accurately act the load on the center point of the loading cap without generating additional dynamic load, thereby improving the detection accuracy.

The dental implant fatigue test loading assembly according to an embodiment of the present invention includes: a mounting block;

Limiting device, the limiting device is provided with a first groove and a first through hole, the first through hole communicates with the first groove, and the limiting device also includes a plurality of ball plungers The ball plunger assembly extends into the first groove from the side of the limiting device, the mounting block is mounted on the limiting device, and the mounting block is located in the limiting device The device opens one side of the first groove;

a connecting block, the connecting block is supported in the first groove, and the connecting block and the limiting device can slide relative to each other, the connecting block is in contact with the ball head plunger assembly, the ball the head plunger assembly is used to limit the displacement of the connecting block;

a loading part, the loading part passes through the first through hole, and the loading part is connected with the connecting block.

The dental implant fatigue test loading assembly according to the embodiment of the present invention has at least the following beneficial effects: the present invention adopts a dental implant fatigue test loading assembly. The block is supported in the first groove, and the connecting block can slide relatively with the limiting device, so that the connecting block can slide in the horizontal direction. By connecting the loading part with the connecting block, and the loading part passes through the first through hole, The connecting block can drive the loading part to move in the horizontal direction, so that the load can be accurately applied to the center point of the loading cap without generating additional load, and the detection accuracy is improved. The installation block is installed on the limit device, and is located on the side where the first groove is opened in the limit device, which can limit the movement of the connecting block in the vertical direction and ensure that the load is smoothly applied to the dental implant through the loading part. cap. By arranging multiple ball plunger assemblies in the limiting device, the displacement amount of the connecting block moving in the horizontal direction each time can also be limited, and the stability of the fatigue test can be improved. In the process of detection, after the loading cap is compressed and displaced, the loading part can move with the movement of the loading cap in the horizontal direction, so that the load accurately acts on the center point of the loading cap in a point-contact manner, and does not Additional load will be generated to improve the accuracy of detection.

According to some embodiments of the present invention, a transmission mechanism is further included, the transmission mechanism includes a first friction plate, a second friction plate and a ball, a second groove is formed on the installation block, and a second groove is formed on the connection block. There is a third groove, the second groove is opposite to the opening of the third groove, the first friction plate is arranged in the second groove, and the second friction plate is arranged in the third groove In the groove, the ball is arranged between the first friction plate and the second friction plate.

According to some embodiments of the present invention, the loading member includes a pressing rod and a pressing head, the pressing rod is mounted on the connecting block, and the pressing head is mounted on the pressing rod.

According to some embodiments of the present invention, the first groove cooperates with the first through hole to form a stepped hole, and the outer diameter of the connecting block is smaller than the diameter of the first groove and larger than the first through hole. The diameter of the hole, the diameter of the pressing rod is smaller than the diameter of the first through hole.

According to some embodiments of the present invention, the connecting block is T-shaped after being connected with the loading part.

According to some embodiments of the present invention, the connecting block is provided with a third threaded hole, the third threaded hole communicates with the third groove, the end surface of the pressing rod is provided with a first threaded rod, and the The third threaded hole is threadedly connected with the first threaded rod.

According to some embodiments of the present invention, a fourth threaded hole is provided on the other end surface of the pressing rod, a second threaded rod is provided on the pressing head, and the fourth threaded hole is threaded with the second threaded rod connect.

According to some embodiments of the present invention, the limiting device is provided with a plurality of first threaded holes, and a side of the mounting block close to the limiting device is provided with a plurality of second threaded holes, the second threaded holes and the The first threaded holes are in one-to-one correspondence.

According to some embodiments of the present invention, the mounting block includes a flange, the flange is disposed on a side of the mounting block away from the limiting device, and a plurality of fifth threaded holes are opened on the flange.

According to some embodiments of the present invention, there are four ball plunger assemblies, and the ball plunger assemblies are distributed in a cross shape.

Additional aspects and advantages of the present invention will be set forth, in part, from the following description, and in part will be apparent from the following description, or may be learned by practice of the invention.

Description of drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of embodiments taken in conjunction with the accompanying drawings, wherein:

1 is a front view of a dental implant fatigue test loading assembly according to an embodiment of the present invention;

2 is a top view of a dental implant fatigue test loading assembly according to an embodiment of the present invention;

FIG. 3 is a cross-sectional view of the dental implant fatigue test loading assembly A-A shown in FIG. 2;

4 is a cross-sectional view of the limiting device and the mounting block shown in FIG. 3;

FIG. 5 is a cross-sectional view of the loading member, the connecting block and the transmission mechanism shown in FIG. 3 .

Reference number:

Dental implant fatigue test loading assembly 100,

Limiting device 110, first groove 111, first through hole 112, ball plunger assembly 113,

connection block 120,

Loading part 130, pressing rod 131, pressing head 132,

The mounting block 140, the second groove 141, the flange 142, the fifth threaded hole 143,

The transmission mechanism 150 , the first friction plate 151 , the second friction plate 152 , and the balls 153 .

Detailed ways

The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, only used to explain the present invention, and should not be construed as a limitation of the present invention.

In the description of the present invention, it should be understood that the orientations related to the description, such as up, down, front, rear, left, right, etc., are based on the orientation or positional relationship shown in the drawings, and are only In order to facilitate the description of the present invention and simplify the description, it is not indicated or implied that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

In the description of the present invention, the meaning of several is one or more, the meaning of multiple is two or more, greater than, less than, exceeding, etc. are understood as not including this number, above, below, within, etc. are understood as including this number. If it is described that the first and the second are only for the purpose of distinguishing technical features, it cannot be understood as indicating or implying relative importance, or indicating the number of the indicated technical features or the order of the indicated technical features. relation.

In the description of the present invention, unless otherwise clearly defined, words such as setting, installation, connection should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

The dental implant fatigue test loading assembly 100 according to the present invention is described below with reference to FIGS. 1 to 5 .

As shown in FIGS. 1 to 4 , the loading assembly 100 for fatigue testing of dental implants according to the present invention includes: a mounting block 140 , a limiting device 110 , a connecting block 120 and a loading part 130 .

The limiting device 110 is provided with a first groove 111 and a first through hole 112, and the first through hole 112 communicates with the first groove 111. The limiting device 110 also includes a plurality of ball-head plunger assemblies 113. The plug assembly 113 extends into the first groove 111 from the side of the limiting device 110, the mounting block 140 is mounted on the limiting device 110, and the mounting block 140 is located on the side where the limiting device 110 opens the first groove 111; connecting The block 120 is supported in the first groove 111 , the connecting block 120 and the limiting device 110 can slide relative to each other, the connecting block 120 is in contact with the ball plunger assembly 113 , and the ball plunger assembly 113 is used to limit the displacement of the connecting block 120 The loading member 130 passes through the first through hole 112 , and the loading member 130 is connected with the connecting block 120 .

Specifically, the connecting block 120 is supported in the first groove 111 of the limiting device 110 , the loading member 130 is connected to the connecting block 120 , and the loading member 130 passes through the first through hole 112 , and the connecting block 120 can drive the loading member 130 sports. There is a gap between the connecting block 120 and the limiting device 110 , and there is also a gap between the loading part 130 and the limiting device 110 , so that when the connecting block 120 and the limiting device 110 slide relative to each other, the connecting block 120 can drive the loading part 130 Moves in the horizontal direction, so that during the loading process, after the loading cap is compressed and displaced, the loading member 130 can move in the horizontal direction with the movement of the loading cap, ensuring that the load acts on the center point of the loading cap accurately . At the same time, by arranging a plurality of ball head plunger assemblies 113, the ball head plunger assemblies 113 are extended from the side of the limiting device 110 into the first groove 111, and the ball head is in contact with the connecting block 120, and the ball head plunger The plug assembly 113 is provided with a spring, and under the action of the spring, the displacement amount of the connecting block 120 sliding in the horizontal direction each time can be limited.

In some embodiments of the present invention, the dental implant fatigue test loading assembly 100 further includes a transmission mechanism 150 . The transmission mechanism 150 includes a first friction plate 151 , a second friction plate 152 and a ball 153 , and the mounting block 140 is provided with a The second groove 141, the connecting block 120 is provided with a third groove, the second groove 141 is opposite to the opening of the third groove, the first friction plate 151 is disposed in the second groove 141, and the second friction plate 152 is disposed In the third groove, the balls 153 are disposed between the first friction plate 151 and the second friction plate 152 . For example, as shown in FIG. 3 to FIG. 5 , the second groove 141 is opposite to the opening of the third groove, the first friction plate 151 is disposed in the second groove 141 , and the second friction plate 152 is disposed in the third groove , the balls 153 are arranged between the first friction plate 151 and the second friction plate 152 . Specifically, by arranging the first friction plate 151 in the second groove 141, the second friction plate 152 in the third groove, and the ball 153 between the first friction plate 151 and the second friction plate 152, The first friction plate 151 , the second friction plate 152 and the ball 153 are matched to achieve the function of the bearing, so that the load can be transmitted downward through the first friction plate 151 , the ball 153 and the second friction plate 152 in turn, and at the same time pass the ball 153 The friction between the first friction plate 151 and the second friction plate 152 can also be reduced, so as to facilitate the relative sliding between the connection block 120 and the installation block 140 . The lower half of the ball 153 is located in the third groove, and the ball 153 is filled with the third groove, so that the connecting block 120 can slide in the horizontal direction while the ball 153 is rolling; the upper half of the ball 153 is arranged on the mounting block 140 in the second groove 141 to limit the movement range of the ball 153 in the second groove 141 .

In some embodiments of the present invention, the loading member 130 includes a pressing rod 131 and a pressing head 132 , the pressing rod 131 is mounted on the connecting block 120 , and the pressing head 132 is mounted on the pressing rod 131 . For example, as shown in FIG. 3 and FIG. 5 , the pressing rod 131 is mounted on the connecting block 120 , and the pressing rod 131 is mounted on the pressing rod 131 . Specifically, the indenter 132 is detachably installed on the pressing rod 131. When the indenter 132 is worn during use and affects the detection result, the accuracy of the detection can be guaranteed by directly disassembling and replacing the indenter 132 without disassembly. The entire dental implant fatigue test loading assembly 100 improves the accuracy of the test results and ensures the efficiency of the test.

In some embodiments of the present invention, the first groove 111 cooperates with the first through hole 112 to form a stepped hole, and the outer diameter of the connecting block 120 is smaller than the diameter of the first groove 111 and larger than the diameter of the first through hole 112 . The diameter of the pressing rod 131 is smaller than the diameter of the first through hole 112 . For example, as shown in FIG. 3 and FIG. 4 , the first groove 111 cooperates with the first through hole 112 to form a stepped hole. Specifically, the cross sections of the first groove 111 and the first through hole 112 are both set to be circular, and the first groove 111 and the first through hole 112 cooperate to form a stepped hole, that is, the diameter of the first groove 111 is larger than that of the first groove 111 . The diameter of the through hole 112 and the outer diameter of the cylindrical connecting block 120 are smaller than the diameter of the first groove 111 and larger than the diameter of the first through hole 112, so that when the connecting block 120 is supported in the first groove 111, the two There is a gap between them to facilitate relative sliding between the connecting block 120 and the first groove 111 , and the pressing rod 131 installed on the connecting block 120 can also slide with the sliding of the connecting block 120 . It can be understood that the cross-sections of the first groove 111 and the first through hole 112 can also be set in a square or oval shape. The relative sliding with the limiting device 110 is more convenient, and the use of circular grooves and circular through holes is not a specific limitation of the present invention.

In some embodiments of the present invention, the connecting block 120 is T-shaped after being connected with the loading part 130 . For example, as shown in FIG. 3 and FIG. 5 , after the connection block 120 is connected with the loading member 130 , the step hole is engaged with each other. Specifically, the connecting block 120 and the loading member 130 are both cylindrical, and the diameter of the pressing rod 131 of the loading member 130 is smaller than the diameter of the first through hole 112 , so that the connecting block 120 drives the loading member 130 to slide relative to the limiting device 110 . The connecting block 120 is connected to the loading part 130 in a T-shape, and cooperates with the stepped holes formed by the first groove 111 and the first through hole 112. The connecting block 120 drives the pressing rod 131 to move in the horizontal direction, so that the load is increased. Acts exactly on the center of the loading cap.

In some embodiments of the present invention, the connection block 120 is provided with a third threaded hole, the third threaded hole communicates with the third groove, the end surface of the pressing rod 131 is provided with a first threaded rod, and the first threaded rod is connected to the third Threaded hole screw connection. For example, as shown in FIGS. 3 and 5 , the first threaded rod and the third threaded hole are threadedly connected. Specifically, the connecting block 120 is provided with a third threaded hole that communicates with the third groove, and a first threaded rod is provided on the side of the pressing rod 131 close to the connecting block 120, and is threadedly connected to the first threaded rod through the third threaded hole, The pressure rod 131 is installed on the connection block 120. If the pressure rod 131 is damaged and affects the detection result, the pressure rod 131 can be directly disassembled and replaced without disassembling the transmission mechanism 150, thereby improving the detection efficiency.

In some embodiments of the present invention, a fourth threaded hole is provided on the other end surface of the pressing rod 131, and a second threaded rod is provided on the pressing head 132, and the second threaded rod is threadedly connected to the fourth threaded hole. For example, as shown in FIGS. 3 and 5 , the second threaded rod and the fourth threaded hole are threadedly connected. Specifically, the side of the pressing rod 131 away from the transmission mechanism 150 is provided with a fourth threaded hole, and the side of the pressing head 132 close to the pressing rod 131 is provided with a second threaded rod. The fourth threaded hole is threadedly connected to the second threaded rod. , so that the indenter 132 is installed on the pressure rod 131, when the indenter 132 is damaged, the indenter 132 can be directly replaced to ensure the use of the dental implant fatigue test loading assembly 100, improve the detection efficiency and the dental implant fatigue test loading assembly 100 durability.

In some embodiments of the present invention, the limiting device 110 is provided with a plurality of first threaded holes, a side of the mounting block 140 close to the limiting device 110 is provided with a plurality of second threaded holes, the second threaded holes and the first threaded holes One-to-one correspondence. Specifically, the limiting device 110 is provided with four first threaded holes, and the side of the mounting block 140 close to the limiting device 110 is also provided with four second threaded holes. The positions of the first threaded holes and the second threaded holes are In a one-to-one correspondence, by twisting the bolts into the first threaded hole and the second threaded hole, the limiting device 110 and the mounting block 140 are installed together. It can be understood that the number of threaded holes provided can be set according to actual requirements, and the establishment of four first threaded holes and four second threaded holes in this embodiment is not a specific limitation of the present invention.

In some embodiments of the present invention, the mounting block 140 includes a flange 142 , the flange 142 is disposed on a side of the mounting block 140 away from the limiting device 110 , and a plurality of fifth threaded holes 143 are defined on the flange 142 . For example, as shown in FIGS. 1 to 4 , the flange 142 is disposed on a side of the mounting block 140 away from the limiting device 110 , and a plurality of fifth threaded holes 143 are formed on the flange 142 . Specifically, a flange 142 is provided on the side of the mounting block 140 away from the limiting device 110 , and a fifth threaded hole 143 is formed on the flange 142 . The mounting block 140 is used for connecting with the fatigue testing machine. In the fifth threaded hole 143 and the threaded hole on the fatigue testing machine, the mounting block 140 is installed on the fatigue testing machine, so that the load on the fatigue testing machine can be transferred to the dental implant fatigue testing loading assembly 100 .

In some embodiments of the present invention, four ball plunger assemblies 113 are provided, and the ball plunger assemblies 113 are distributed in a cross shape. Specifically, the ball plunger assembly 113 is provided with a spring, through which the displacement amount of the loading member 130 can be limited each time; four ball plunger assemblies 113 are provided, and the four ball plungers are assembled together Distributed in a cross shape, the loading member 130 can be restricted from four directions respectively, so as to prevent the loading member 130 from generating a large amount of movement, affecting the detection result, and ensuring the stability during the detection process. It can be understood that different numbers of ball plunger assemblies 113 can be set according to actual detection requirements, and the use of four ball plunger assemblies 113 in this embodiment is not a specific limitation of the present invention.

1 to 5 , the dental implant fatigue test loading assembly 100 according to the present invention will be described in detail with a specific embodiment. It should be understood that the following description is only an exemplary illustration, rather than a specific limitation of the present invention.

As shown in FIG. 1 to FIG. 5 , the mounting block 140 is mounted on the limiting device 110 , a first groove 111 is provided on the side of the limiting device 110 close to the mounting block 140 , and the limiting device 110 is provided with a first groove 111 that communicates with the first The first through hole 112 of the groove 111, the connecting block 120 is defined in the circular first groove 111, the pressing rod 131 passes through the first through hole 112, the pressing head 132 is installed on the pressing rod 131, and the pressing rod 131 is installed On the connecting block 120 , the loading member 130 and the limiting device 110 can slide relative to each other. The limiting device 110 also includes four ball plunger assemblies 113, the ball plunger assemblies 113 are distributed in a cross shape, and the ball plunger assemblies 113 extend into the first groove 111 from the side of the limiting device 110, It is in contact with the loading member 130, and the displacement amount of the loading member 130 in the horizontal direction is controlled from four directions.

Specifically, the mounting block 140 is provided with a second groove 141 with a circular cross section, the connecting block 120 is provided with a third groove with a circular cross section, the second groove 141 and the opening of the third groove On the contrary, the first friction block is disposed in the second groove 141, the second friction block is disposed in the circular third groove of the connecting block 120, and the diameter of the second groove 141 is larger than that of the third groove; A ball 153 is installed between the friction block and the second friction block, and the lower half of the ball 153 is covered with the third groove, so that the ball 153 and the connecting block 120 can move synchronously in the horizontal direction; the upper half of the ball 153 is located at in the second groove 141 to limit the rolling of the balls 153 in the second groove 141 . The connecting block 120 is set in a cylindrical shape, and the outer diameter of the connecting block 120 is smaller than the diameter of the first groove 111 and larger than the diameter of the first through hole 112 , so that the connecting block 120 is supported in the first groove 111 , and the pressing rod 131 The diameter of the first through hole 112 is smaller than the diameter of the first through hole 112, so that when the pressure rod 131 is installed on the connecting block 120, it can also slide with the sliding of the connecting block 120 in the horizontal direction, so that the loading member 130 has a certain horizontal direction. degrees of freedom. The limiting device 110 is provided with a first threaded hole, and the mounting block 140 is provided with a second threaded hole. The first threaded hole is opposite to the second threaded hole. By twisting the bolt into the first threaded hole and the second threaded hole Inside, the limiting device 110 and the mounting block 140 are connected, and by arranging the transmission mechanism 150 between the mounting block 140 and the connecting block 120, the movement of the connecting block 120 in the horizontal direction can also be restricted; the connecting block 120 and the pressing rod 131 The space between and between the pressing rod 131 and the pressing head 132 is connected with the threaded rod through threaded holes. The mounting block 140 is provided with a flange 142, and the flange 142 is provided with a fifth threaded hole 143. By twisting the bolt into the fifth threaded hole 143 and the threaded hole on the fatigue testing machine, the mounting block 140 is connected to the The fatigue testing machine is connected so that the dental implant fatigue testing loading assembly 100 is connected with the fatigue testing machine.

According to the dental implant fatigue test loading assembly 100 of the present invention, by setting in this way, at least some of the following effects can be achieved. By setting the outer diameter of the connecting block 120 to be smaller than the diameter of the first groove 111 and larger than the first through hole 112 and the diameter of the pressing rod 131 is smaller than the diameter of the first through hole 112, so that the loading member 130 has a certain degree of freedom in the horizontal direction; the load on the fatigue testing machine can also be transmitted to the loading member 130 through the transmission mechanism 150 . In the process of transferring the load, after the loading cap is compressed and displaced, the loading member 130 can move in the horizontal direction along with the movement of the loading cap, so that the load accurately acts on the center point of the loading cap in a point-contact manner, and no displacement occurs. Since the limiting device 110 further includes four ball-head plunger assemblies 113 distributed in a cross shape, the displacement of the loading member 130 in the horizontal direction can be limited from four directions, and the stability during the detection process can be ensured. The indenter 132 in the loading part 130 is detachably mounted on the pressing rod 131. When the indenter 132 is damaged during the inspection process, it can be directly disassembled and replaced, without reinstalling the dental implant fatigue test loading assembly 100. the detection efficiency.

The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned embodiments. Within the scope of knowledge possessed by those of ordinary skill in the technical field, various modifications can be made without departing from the purpose of the present invention. kind of change.

Claims (10)

1. a dental implant fatigue test loading assembly, is characterized in that, comprises: mounting block; Limiting device, the limiting device is provided with a first groove and a first through hole, the first through hole communicates with the first groove, and the limiting device also includes a plurality of ball plungers The ball plunger assembly extends into the first groove from the side of the limiting device, the mounting block is mounted on the limiting device, and the mounting block is located in the limiting device The device opens one side of the first groove; a connecting block, the connecting block is arranged in the first groove, and the connecting block and the limiting device can slide relative to each other, the connecting block is in contact with the ball head plunger assembly, the ball the head plunger assembly is used to limit the displacement of the connecting block; a loading part, the loading part passes through the first through hole, and the loading part is connected with the connecting block. 2 . The dental implant fatigue test loading assembly according to claim 1 , further comprising a transmission mechanism, the transmission mechanism comprises a first friction plate, a second friction plate and a ball, and the mounting block is provided on the mounting block. 3 . A second groove is opened, a third groove is opened on the connecting block, the second groove is opposite to the opening of the third groove, and the first friction plate is arranged in the second groove , the second friction plate is arranged in the third groove, and the ball is arranged between the first friction plate and the second friction plate. 3 . The loading assembly for dental implant fatigue testing according to claim 1 , wherein the loading component comprises a pressure rod and a pressure head, the pressure rod is installed on the connecting block, and the pressure head is installed on the connection block. 4 . on the pressure rod. 4 . The dental implant fatigue test loading assembly according to claim 1 , wherein the first groove cooperates with the first through hole to form a stepped hole, and the outer diameter of the connecting block is smaller than that of the first through hole. 5 . The diameter of a groove is larger than the diameter of the first through hole, and the diameter of the pressing rod is smaller than the diameter of the first through hole. 5 . The loading assembly for dental implant fatigue testing according to claim 1 , wherein the connecting block is T-shaped after being connected with the loading component. 6 . 6 . The dental implant fatigue test loading assembly according to claim 3 , wherein a third threaded hole is opened on the connecting block, the third threaded hole communicates with the third groove, and the pressure A first threaded rod is provided on the end surface of the rod, and the first threaded rod is threadedly connected with the third threaded hole. 7 . The dental implant fatigue test loading assembly according to claim 6 , wherein a fourth threaded hole is provided on the other end surface of the pressing rod, and a second threaded rod is provided on the pressing head. 8 . The second threaded rod is threadedly connected with the fourth threaded hole. 8 . The loading assembly for dental implant fatigue testing according to claim 1 , wherein a plurality of first threaded holes are formed on the limiting device, and a side of the mounting block close to the limiting device is provided with threaded holes. 9 . A plurality of second threaded holes, the second threaded holes are in one-to-one correspondence with the first threaded holes. 9 . The dental implant fatigue test loading assembly according to claim 1 , wherein the mounting block comprises a flange, and the flange is disposed on a side of the mounting block away from the limiting device, 10 . The flange is provided with a plurality of fifth threaded holes. 10 . The dental implant fatigue test loading assembly according to claim 1 , wherein there are four ball plunger assemblies, and the ball plunger assemblies are distributed in a cross shape. 11 .

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