CN211023209U - Dental straight handpiece with protective structure - Google Patents

Abstract

The utility model provides a dental straight handpiece with a protective structure. The dental straight handpiece with a protective structure includes a straight handpiece body; a back cover, one side of the back cover is an opening, and the back cover is movably sleeved on the straight handpiece body; a connecting block, the connecting block The screw is installed on the back cover, and the connecting block is movably sleeved on the straight handpiece body; a first through hole, the first through hole is opened on the connecting block; a sliding rod, two of the The sliding rod is slidably installed on the top inner wall of the first through hole, the tops of the two sliding rods both extend outside the connecting block, and the bottoms of the two sliding rods both extend to the first through hole Inside; a fixing plate, the fixing plate is fixedly installed on the bottom of the two sliding rods, and the fixing plate is slidably installed in the first through hole. The dental straight handpiece with the protective structure provided by the utility model has the advantages of being convenient to use and ensuring the hygiene of the straight handpiece.

Description

Dental straight handpiece with protective structure

technical field

The utility model relates to the technical field of dental straight handpieces, in particular to a dental straight handpiece with a protective structure.

Background technique

In the field of prosthodontics, tooth preparation and restoration surface grinding are one of the most frequently used important procedures in oral clinical treatment. It is widely used in the preparation of dental tissue before the restoration is in place and in the surface grinding operation after the restoration is in place, that is, the doctor uses dental cutting instruments to remove and grind the shape of the dental tissue or restoration. , polishing and other operations in order to adjust the occlusion and coordination relationship between the restoration and the dental system, which is a key link to ensure that the restoration achieves normal oral physiological functions.

As an important medical device in dentistry, straight handpieces have a compact structure and act directly in the oral cavity of people. Therefore, the hygiene of straight handpieces can directly affect the health of patients.

Therefore, it is necessary to provide a new dental straight handpiece with a protective structure to solve the above technical problems.

Utility model content

The technical problem solved by the utility model is to provide a dental straight handpiece with a protective structure which is convenient to use and ensures the hygiene of the straight handpiece.

In order to solve the above technical problems, the dental straight handpiece provided by the present invention with a protective structure includes: a straight handpiece body; the back cover is movably sleeved on the straight handpiece body, and one side of the back cover is an opening; The connecting block is threadedly mounted on the back cover, and the connecting block is movably sleeved on the straight handpiece body; a first through hole, which is opened on the connecting block; two two sliding rods, two sliding rods are slidably installed on the top inner wall of the first through hole, the tops of the two sliding rods both extend outside the connecting block, and the bottoms of the two sliding rods are extending into the first through hole; a fixing plate, the fixing plate is fixedly installed on the bottom of the two sliding rods, and the fixing plate is slidably installed in the first through hole; a first soft pad, so The first soft pad is fixedly installed on the bottom of the fixing plate, and the bottom of the first soft pad is in contact with the straight handpiece body; the first bolt, the first bolt is threadedly installed on the top of the first through hole On the inner wall, the top of the first bolt extends outside the connecting block, the bottom of the first bolt extends into the first through hole, and the first bolt is located between the two sliding bars; A second soft pad, the second soft pad is fixedly mounted on the bottom inner wall of the first through hole, and the top of the second soft pad is in contact with the straight phone body; the front cover, the front cover and the One end of the connecting block away from the rear cover is threadedly connected, and the front cover is movably sleeved on the straight handpiece body; the fixing block is fixedly installed on the inner wall of the side of the front cover away from the rear cover upper; a conical groove, the conical groove is opened on the side of the fixing block close to the back cover, and the end of the straight phone body away from the back cover extends into the conical groove.

Preferably, the inner diameter of the tapered groove gradually decreases from the front cover to the rear cover, and the tapered groove is adapted to the straight phone body.

Preferably, two first threaded through holes are formed on the inner wall of the side of the front cover away from the rear cover, and two threaded grooves are formed on the side of the fixing block away from the rear cover. The first threaded through hole is communicated with the threaded groove, second bolts are threadedly installed in the two first threaded through holes, and both of the second bolts extend to the two threaded grooves Inside.

Preferably, each end of the connecting block is provided with a threaded ring groove, and both of the two threaded ring grooves are threadedly connected with the corresponding rear cover and the front cover.

Preferably, two second through holes are opened on the inner wall of the top of the first through hole, the two second through holes are both slidably connected with the corresponding sliding rods, and the tops of the two sliding rods are fixed A round block is installed.

Preferably, a second threaded through hole is formed on the top inner wall of the first through hole, and the second threaded through hole is matched with the first bolt.

Preferably, a third soft pad is fixedly installed on the inner wall of the side of the back cover away from the front cover, and the side of the third soft pad close to the front cover is in contact with the straight phone body.

Preferably, the model of the straight handpiece body is SKI-301A.

Compared with the related art, the dental straight handpiece with the protective structure provided by the utility model has the following beneficial effects:

The utility model provides a dental straight handpiece with a protective structure. The two round blocks are pulled, and the two round blocks drive two sliding rods to rise, and the top of the fixing plate completely contacts the top inner wall of the first through hole. At this time, the straight handpiece body penetrates the first through hole, the round block is released at this time, the two sliding bars are lowered, and the first soft pad and the second soft pad are in contact with the The body of the straight mobile phone, at this time, screw the first bolt, the first bolt contacts the fixing plate and exerts pressure on the fixing plate, the back cover is threadedly mounted on the connecting block, the third The soft pad contacts the straight handpiece body, and when the front cover is twisted, the front end of the straight handpiece body extends into the conical groove to complete the protection of the straight handpiece body.

Description of drawings

Fig. 1 is the front sectional structure schematic diagram of a kind of preferred embodiment of the dental straight handpiece with protective structure provided by the utility model;

FIG. 2 is an enlarged schematic structural diagram of part A shown in FIG. 1 .

Labels in the figure: 1. Straight phone body, 2. Back cover, 3. Connecting block, 4. First through hole, 5. Slide bar, 6. Fixing plate, 7. First cushion, 8. First bolt, 9. Second cushion, 10. Front cover, 11. Fixed block, 12. Conical groove.

Detailed ways

The present utility model will be further described below with reference to the accompanying drawings and embodiments.

Please refer to FIG. 1 and FIG. 2 in conjunction, wherein, FIG. 1 is a schematic front cross-sectional structure diagram of a preferred embodiment of a dental straight handpiece with a protective structure provided by the present invention; FIG. 2 is part A shown in FIG. 1 . Schematic diagram of the enlarged structure. The dental straight handpiece with a protective structure comprises: a straight handpiece body 1; a back cover 2, the back cover 2 is movably sleeved on the straight handpiece body 1, and one side of the back cover 2 is an opening; a connecting block 3, The connecting block 3 is threadedly mounted on the back cover 2, and the connecting block 3 is movably sleeved on the straight handpiece body 1; a first through hole 4 is opened in the connection On the block 3; two sliding rods 5, the two sliding rods 5 are slidably installed on the top inner wall of the first through hole 4, and the tops of the two sliding rods 5 extend to the outside of the connecting block 3 , the bottoms of the two sliding bars 5 both extend into the first through holes 4; the fixing plate 6 is fixedly installed on the bottom of the two sliding bars 5, and the fixing plate 6 slides Installed in the first through hole 4; a first soft pad 7, the first soft pad 7 is fixedly installed on the bottom of the fixing plate 6, and the bottom of the first soft pad 7 is connected to the straight handpiece body. 1 contact; the first bolt 8, the first bolt 8 is threadedly mounted on the inner wall of the top of the first through hole 4, the top of the first bolt 8 extends to the outside of the connecting block 3, the first bolt 8 The bottom of 8 extends into the first through hole 4, the first bolt 8 is located between the two sliding rods 5; the second soft pad 9, the second soft pad 9 is fixedly installed on the first On the bottom inner wall of a through hole 4, the top of the second soft pad 9 is in contact with the straight phone body 1; the front cover 10, the front cover 10 and the connecting block 3 One end is threadedly connected, the front cover 10 is movably sleeved on the straight handpiece body 1; a fixing block 11 is fixedly installed on the inner wall of the front cover 10 away from the rear cover 2; Slot 12 , the tapered slot 12 is opened on the side of the fixing block 11 close to the back cover 2 , and the end of the straight phone body 1 away from the back cover 2 extends into the tapered slot 12 .

The inner diameter of the tapered groove 12 gradually decreases from the front cover 10 to the rear cover 2 , and the tapered groove 12 is adapted to the straight phone body 1 .

Two first threaded through holes are formed on the inner wall of the front cover 10 away from the rear cover 2 , and two threaded grooves are formed on the side of the fixing block 11 away from the rear cover 2 . The first threaded through hole is communicated with the threaded groove, second bolts are threadedly installed in the two first threaded through holes, and both of the second bolts extend to the two threaded grooves. in the slot.

The ends of the connecting blocks 3 are all provided with threaded ring grooves, and the two threaded ring grooves are both threadedly connected with the corresponding rear cover 2 and the front cover 10 .

The inner wall of the top of the first through hole 4 is provided with two second through holes, the two second through holes are both slidably connected with the corresponding sliding rods 5 , and the tops of the two sliding rods 5 are fixed A round block is installed.

A second threaded through hole is opened on the top inner wall of the first through hole 4 , and the second threaded through hole is matched with the first bolt 8 .

A third soft pad is fixedly installed on the inner wall of the back cover 2 away from the front cover 10 , and the side of the third soft pad close to the front cover 10 is in contact with the straight phone body 1 .

The model of the straight handpiece body 1 is SKI-301A.

The working principle of the dental straight handpiece with the protective structure provided by the utility model is as follows:

When the straight handpiece body 1 is used, one holds the connecting block 3 and pulls the round block upward, the round block drives the sliding rod 5 to rise, and the sliding rod 5 drives the fixed plate 6 and the first soft pad 7 to rise. Make the straight handpiece body 1 penetrate the first through hole 4, and the bottom of the straight handpiece body 1 contacts the top of the second soft pad 9. After that, loosen the round block and slide the rod 5, the fixing plate 6 and the bottom under the action of gravity. The first soft pads 7 are all moved down, and the first bolts 8 are screwed. When the first bolts 8 move downward, the first bolts 8 exert pressure on the fixing plate 6 to fix the straight handpiece body 1 , After fixing, pick up the back cover 2, screw it to the back cover 2 through the thread, so that the third cushion contacts the straight handpiece body 1, then pick up the front cover 10, align the straight handpiece body 1 with the conical groove 12, and screw Move the front cover 10 until the front cover 10 is completely locked, and the protection of the mobile phone body 1 is completed.

Compared with the related art, the dental straight handpiece with the protective structure provided by the present utility model has the following beneficial effects:

The utility model provides a dental straight handpiece with a protective structure. The two circular blocks are pulled, and the two circular blocks drive the two sliding rods 5 to rise, and the top of the fixing plate 6 completely contacts the first through hole 4 At this time, the straight handpiece body 1 penetrates the first through hole 4, the round block is released, the two sliding rods 5 descend, the first soft pad 7 and the first through hole 4 Both the two soft pads 9 are in contact with the straight handpiece body 1. At this time, the first bolt 8 is screwed, and the first bolt 8 contacts the fixing plate 6, exerting pressure on the fixing plate 6, and the back cover 2. The screw is mounted on the connecting block 3, the third cushion contacts the straight handpiece body 1, and the front cover 10 is twisted, and the front end of the straight handpiece body 1 extends into the conical groove 12. , to complete the protection of the straight mobile phone body 1 .

The above are only the embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and accompanying drawings of the present invention, or directly or indirectly applied to other Relevant technical fields are similarly included in the scope of patent protection of the present invention.

Claims (8)

1. A dental handpiece with a protective structure, comprising:

a mobile phone body;

the rear cover is movably sleeved on the bar phone body, and one side of the rear cover is provided with an opening;

the connecting block is arranged on the rear cover in a threaded manner and movably sleeved on the bar phone body;

the first through hole is formed in the connecting block;

the two sliding rods are slidably mounted on the inner wall of the top of the first through hole, the tops of the two sliding rods extend out of the connecting block, and the bottoms of the two sliding rods extend into the first through hole;

the fixed plate is fixedly arranged at the bottoms of the two sliding rods and is arranged in the first through hole in a sliding manner;

the first soft cushion is fixedly arranged at the bottom of the fixing plate, and the bottom of the first soft cushion is in contact with the bar phone body;

the first bolt is installed on the inner wall of the top of the first through hole in a threaded mode, the top of the first bolt extends out of the connecting block, the bottom of the first bolt extends into the first through hole, and the first bolt is located between the two sliding rods;

the second cushion is fixedly arranged on the inner wall of the bottom of the first through hole, and the top of the second cushion is contacted with the helicopter body;

the front cover is in threaded connection with one end, far away from the rear cover, of the connecting block, and the front cover is movably sleeved on the bar phone body;

the fixing block is fixedly arranged on the inner wall of one side of the front cover, which is far away from the rear cover;

the conical groove is formed in one side, close to the rear cover, of the fixing block, and one end, far away from the rear cover, of the mobile phone body extends into the conical groove.

2. The dental handpiece with the protective structure according to claim 1, wherein the inner diameter of the tapered groove is gradually reduced from the front cover to the rear cover, and the tapered groove is matched with the body of the handpiece.

3. The dental straight-hand machine with the protective structure according to claim 1, wherein two first threaded through holes are formed in an inner wall of a side of the front cover away from the rear cover, two threaded grooves are formed in a side of the fixing block away from the rear cover, the two first threaded through holes are communicated with the threaded grooves, a second bolt is threadedly mounted in each of the two first threaded through holes, and each of the two second bolts extends into each of the two threaded grooves.

4. The dental straight-hand machine with protective structure according to claim 1, wherein the ends of the connecting block are each opened with a threaded ring groove, and both threaded ring grooves are in threaded connection with the corresponding back cover and the front cover.

5. The dental straight handpiece with the protective structure as claimed in claim 1, wherein two second through holes are formed on the inner wall of the top of the first through hole, the two second through holes are slidably connected with the corresponding slide bars, and round blocks are fixedly mounted on the tops of the two slide bars.

6. The dental straight-hand machine with protective structure as claimed in claim 1, wherein a second threaded through hole is opened on the top inner wall of the first through hole, and the second threaded through hole is matched with the first bolt.

7. The dental straight hand machine with the protective structure as claimed in claim 1, wherein a third soft pad is fixedly mounted on the inner wall of one side of the rear cover far away from the front cover, and one side of the third soft pad close to the front cover is in contact with the straight hand machine body.

8. A dental handpiece with a protective structure according to claim 1, characterized in that the model of the handpiece body is SKI-301A.

Images