CN216247490U

CN216247490U - Oral cavity mechanics of materials experiment pressure head

Info

Publication number: CN216247490U
Application number: CN202220366289.9U
Authority: CN
Inventors: 徐延; 张桂荣; 丛芳; 慈盛博; 路景轶; 董奕麟
Original assignee: Shenyang Stomatological Hospital
Current assignee: Shenyang Stomatological Hospital
Priority date: 2022-02-23
Filing date: 2022-02-23
Publication date: 2022-04-08
Anticipated expiration: 2032-02-23

Abstract

The utility model relates to the technical field of machinery, in particular to a pressure head for oral cavity material mechanics experiments, which comprises a pressure head main body and a pressure block assembly, wherein a first inner cavity for accommodating the pressure block assembly is arranged in the pressure head main body, the pressure block assembly comprises a shaft sleeve rotatably arranged at the upper part of the first inner cavity and a pressure block arranged at the lower part of the first inner cavity, the top end of the pressure block is in threaded connection with the bottom of the shaft sleeve, a limiting part for limiting the rotation of the pressure block is arranged in the first inner cavity, the top of the shaft sleeve is coaxially connected with a worm wheel, the pressure block assembly also comprises a worm meshed with the worm wheel, a second inner cavity for accommodating the worm is arranged in the pressure head main body, and the worm is rotatably arranged in the second inner cavity. According to the utility model, through the matched use of the shaft sleeve, the pressing block, the limiting part, the worm wheel and the worm, when the length of the pressing block is adjusted, the worm is rotated to drive the worm wheel and the shaft sleeve to rotate, so that the pressing block can stretch out and draw back in the pressing head main body, the stretching length can be adjusted at will, the application range is wider, and different experimental requirements can be met.

Description

Oral cavity mechanics of materials experiment pressure head

Technical Field

The utility model relates to the technical field of machinery, in particular to a pressure head for an oral cavity material mechanics experiment.

Background

In order to simulate the occlusion condition of teeth in the oral cavity to the jaw and detect the stress condition of the oral cavity material under different conditions, a universal mechanical machine is required to apply vertical downward pressure to the oral cavity material, and when the universal mechanical machine is applied to the oral cavity material, an experiment pressure head special for the oral cavity material is required to be adapted.

The patent of current publication No. CN205786068U discloses a concertina type oral cavity mechanics of materials experiment pressure head, and it can be when not needing to use with the briquetting income in the briquetting hole, reduces the volume of pressure head, can constantly adjust the briquetting and be in outside length when needs use, and is simple and convenient. However, the length adjustment of the experiment pressure head pressing block has three gears and can only be switched among the three length gears, so that the exposed length adjustment of the pressing block has limitation and cannot meet different experiment requirements.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides the oral cavity material mechanics experiment pressure head which can be used for randomly adjusting the exposed length of the pressing block and solving the problem that the adjustment of the exposed length of the pressing block has limitation.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an oral cavity mechanics of materials experiment pressure head, includes pressure head main part and briquetting subassembly, pressure head main part inside has and holds the first inner chamber of briquetting subassembly, the briquetting subassembly is located including rotating the axle sleeve on first inner chamber upper portion and locating the briquetting of first inner chamber lower part, the briquetting top with axle sleeve bottom threaded connection, first intracavity is equipped with the restriction the rotatory stop part of briquetting, axle sleeve top coaxial coupling have the worm wheel, the briquetting subassembly still include with worm wheel meshed worm, pressure head main part inside has and holds the second inner chamber of worm, the worm rotates and locates the intracavity in the second, worm wheel and worm are the worm wheel and the worm of reverse auto-lock.

Optionally, the limiting component comprises a limiting bead, the limiting bead is embedded in the first inner cavity wall, and a limiting groove in sliding fit with the limiting bead is axially formed in the lower section of the side wall of the pressing block.

Optionally, the bearing further comprises a first bearing, a clamping groove for mounting the first bearing is formed in the upper portion of the first inner cavity, the outer ring of the first bearing is embedded into the clamping groove, and the inner ring of the first bearing is fixed with the outer wall of the top of the shaft sleeve.

Optionally, at least one end of the worm extends to the outside of the pressure head main body and is fixedly connected with a hand wheel, the diameter of the hand wheel is larger than that of the worm, and the outer wall of the hand wheel is provided with anti-skid threads.

Optionally, the second inner cavity is embedded with two second bearings connected with the outer wall of the worm, and the two second bearings are arranged at two ends of the second inner cavity.

Optionally, the pressure head main part is formed by two halfcylinders concatenation, two it has corresponding connecting hole to open on the halfcylinder, two the halfcylinder inserts through the bolt concatenation is fixed in the connecting hole.

Compared with the prior art, the utility model provides an oral cavity mechanics experiment pressure head, which has the following beneficial effects:

1. according to the utility model, by arranging the shaft sleeve, the pressing block, the limiting part, the worm wheel and the worm to be matched, when the length of the pressing block is adjusted, the worm wheel and the shaft sleeve are driven to rotate by rotating the worm, the pressing block can be stretched in the pressing head main body, the stretching length can be adjusted at will, the application range is wider, and different experimental requirements can be met;

2. according to the utility model, the limiting assembly comprising the limiting beads and the limiting grooves is arranged, and the limiting beads are matched with the limiting grooves, so that the rotation of the pressing block is limited, the resistance of the pressing block when the pressing block moves in the pressing head main body can be reduced, and the length of the pressing head is adjusted more laborsavingly;

3. according to the utility model, the first bearing is arranged between the shaft sleeve and the first inner cavity, and the shaft sleeve is in rolling contact with the inner wall of the main body of the first bearing pressing head, so that the rotation resistance of the shaft sleeve can be reduced, and the length of the pressing head can be adjusted more easily.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

FIG. 3 is a schematic top cross-sectional view of the present invention;

fig. 4 is a schematic front sectional view of the present invention.

In the figure: 1. a ram body; 2. briquetting; 3. a shaft sleeve; 4. a worm gear; 5. a first lumen; 6. a worm; 7. a hand wheel; 8. anti-skid lines; 9. a limiting groove; 10. a limiting bead; 11. a first bearing; 12. a card slot; 13. connecting holes; 14. a second lumen; 15. a second bearing.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example (b): referring to fig. 1 to 4, an embodiment of the present invention provides a technical solution: the utility model provides an oral cavity mechanics of materials experiment pressure head, including pressure head main part 1 and briquetting subassembly, pressure head main part 1 is inside to have the first inner chamber 5 that holds the briquetting subassembly, the briquetting subassembly is including rotating axle sleeve 3 of locating first inner chamber 5 upper portion and locating briquetting 2 of the 5 lower parts of first inner chamber, 2 tops of briquetting and 3 bottom threaded connection of axle sleeve, be equipped with the spacing part of 2 rotations of restriction briquetting in the first

inner chamber

5, 3 top coaxial coupling of axle sleeve 4 have worm wheel 4, the briquetting subassembly still includes the worm 6 with worm wheel 4 meshing, pressure head main part 1 is inside to have the second inner chamber 14 that holds worm 6, worm 6 rotates and locates in the second inner chamber 14, worm wheel 4 and worm 6 are the worm wheel 4 and the worm 6 of reverse auto-lock. Second inner chamber 14 embedding is equipped with the second bearing 15 with 6 outer wall connections of worm, and second bearing 15 is two, and two second bearings 15 locate the both ends of second inner chamber 14, when adjusting 2 length of briquetting, drive worm wheel 4 and axle sleeve 3 rotation through rotatory worm 6 to make briquetting 2 flexible in pressure head main part 1, and flexible length can be adjusted wantonly, and application scope is wider, can satisfy different experimental demands.

On the basis of above-mentioned embodiment, the spacing part of this embodiment includes spacing pearl 10, and spacing pearl 10 embedding is installed at 5 walls of first inner chamber, and 2 lateral wall hypomere of briquetting have along the axial open have with spacing pearl 10 sliding fit's spacing groove 9, through spacing pearl 10 and spacing groove 9's cooperation, have not only realized the restriction to briquetting 2 is rotatory, can also reduce the resistance that briquetting 2 received when pressure head main part 1 inside removes, and the length adjustment of pressure head is more laborsaving.

In order to further reduce the difficulty of adjusting the length of the pressure head, on the basis of the above embodiment, the embodiment further includes the first bearing 11, the upper portion of the first inner cavity 5 is formed with the clamping groove 12 for installing the first bearing 11, the outer ring of the first bearing 11 is embedded into the clamping groove 12, the inner ring of the first bearing 11 is fixed with the outer wall of the top of the shaft sleeve 3, the shaft sleeve 3 is in rolling contact with the inner wall of the pressure head main body 1 through the first bearing 11, the rotation resistance of the shaft sleeve 3 can be reduced, and the adjustment of the length of the pressure head is more labor-saving.

In order to facilitate the rotation of the worm 6, on the basis of the above embodiment, at least one end of the worm 6 of the embodiment extends to the outside of the pressure head main body 1 and is fixedly connected with a hand wheel 7, the diameter of the hand wheel 7 is larger than that of the worm 6, and the outer wall of the hand wheel 7 is provided with anti-slip threads 8.

In order to facilitate the assembly and disassembly of the pressing block assembly, on the basis of the above embodiment, the pressing head main body 1 of the embodiment is formed by splicing two half cylinders, the two half cylinders are provided with corresponding connecting holes 13, the two half cylinders are inserted into the connecting holes 13 through bolts and are fixedly spliced, during the assembly, the pressing block assembly is arranged in the first inner cavity 5 and the second inner cavity 14, the two half cylinders are connected through the bolts to complete the assembly, and during the disassembly, the pressing block assembly can be taken out from the inside of the pressing head main body 1 only by disassembling the bolts in the connecting holes 13.

The working principle is as follows: firstly, a pressing block assembly is arranged in a pressing head main body 1, during assembly, a semi-cylinder is taken, a pressing block 2 is connected to the bottom of a shaft sleeve 3 in a threaded mode, a first bearing 11 is arranged at the top of the shaft sleeve 3, then the shaft sleeve 3 provided with the first bearing 11 and the pressing block 2 is arranged in a first inner cavity 5 of the semi-cylinder, then a worm 6 provided with a second bearing 15 is arranged in a second cavity of the semi-cylinder, the worm 6 is meshed with a worm wheel 4 at the top end of the shaft sleeve 3, finally, the other semi-cylinder is covered on the semi-cylinder and is fixed through a bolt, so that the pressing block assembly is arranged, when the pressing head is used, the whole length of the pressing head is adjusted according to experimental requirements, during adjustment, the exposed length of the pressing block 2 can be adjusted only through a knob hand wheel 7, and the exposed length of the pressing block 2 can be adjusted at will, the application range is wider, and different experimental requirements can be met.

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

Claims

1. The utility model provides an oral cavity mechanics of materials experiment pressure head which characterized in that: comprises a pressure head main body (1) and a pressing block component, wherein a first inner cavity (5) for accommodating the pressing block component is arranged in the pressure head main body (1), the pressing block component comprises a shaft sleeve (3) rotatably arranged at the upper part of the first inner cavity (5) and a pressing block (2) arranged at the lower part of the first inner cavity (5), the top end of the pressing block (2) is in threaded connection with the bottom of the shaft sleeve (3), a limiting component for limiting the rotation of the pressing block (2) is arranged in the first inner cavity (5), the top of the shaft sleeve (3) is coaxially connected with a worm wheel (4), the pressing block component also comprises a worm (6) meshed with the worm wheel (4), the interior of the pressure head main body (1) is provided with a second inner cavity (14) for accommodating the worm (6), the worm (6) is rotatably arranged in the second inner cavity (14), and the worm wheel (4) and the worm (6) are reversely self-locking worm wheel (4) and worm (6).

2. The oral cavity mechanics of materials experiment indenter of claim 1, wherein: the limiting component comprises a limiting bead (10), the limiting bead (10) is embedded in the wall of the first inner cavity (5), and a limiting groove (9) in sliding fit with the limiting bead (10) is formed in the lower section of the side wall of the pressing block (2) along the axial direction.

3. The oral cavity mechanics of materials experiment indenter of claim 1, wherein: still include first bearing (11), first inner chamber (5) upper portion shaping has the installation draw-in groove (12) of first bearing (11), embedding of first bearing (11) outer lane in draw-in groove (12), first bearing (11) inner circle with the outer wall at axle sleeve (3) top is fixed.

4. The oral cavity mechanics of materials experiment indenter of claim 1, wherein: at least one end of the worm (6) extends to the outside of the pressure head main body (1) and the fixedly connected hand wheel (7), the diameter of the hand wheel (7) is larger than that of the worm (6), and the outer wall of the hand wheel (7) is provided with anti-skid grains (8).

5. The oral cavity mechanics of materials experiment indenter of claim 1, wherein: the second inner cavity (14) is embedded with two second bearings (15) connected with the outer wall of the worm (6), and the two second bearings (15) are arranged at two ends of the second inner cavity (14).

6. The oral cavity mechanics of materials experiment indenter of claim 1, wherein: the pressure head main part (1) is formed by splicing two semi-cylinders, two corresponding connecting holes (13) are formed in the semi-cylinders, and the two semi-cylinders are inserted into the connecting holes (13) through bolts and are fixedly spliced.