Flat-head cylindrical depth-keeping carborundum machine needle

Abstract

The utility model discloses a flat head cylinder type depth setting carborundum lathe needle which comprises a needle handle and a needle head, a fixing cavity is formed in the needle handle, one end of the needle head is arranged in the fixing cavity in a sleeved mode, a first clamping block is fixedly connected to one side of an inner cavity of the fixing cavity, and a connecting screw hole is formed in the side, opposite to the first clamping block, of the inner cavity of the fixing cavity. An inner cavity of the connecting screw hole is in threaded connection with a rotating rod, the inner side of the rotating rod is rotationally connected with a second clamping block, and a clamping groove is formed in the top end of the fixing cavity. By arranging the fixing mechanism, the needle head and the needle handle are detachable, local replacement is facilitated when the needle head is damaged, the needle head can be used repeatedly, the service life of the needle head is prolonged, and the use cost is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of dental appliances, in particular to a flat-head cylindrical fixed-depth diamond grinding needle. Background Art

[0002] Oral implant is a common oral restoration surgery in clinical practice. It is a surgical procedure to implant dental implants into the upper and lower jaws of the human body where the teeth are missing. It can effectively repair missing teeth and restore tooth function. Diamond needles are consumable tools used by dentists. They are very fine steel needles. This needle consists of a needle head and a needle handle. It can be inserted into high-speed and low-speed mobile phones to help dentists open cavities and repair teeth.

[0003] The existing diamond turning needle body consists of a needle head and a needle handle. The needle head and the needle handle on the market are usually fixed together. During the use of the diamond turning needle, the diamond grains will gradually fall off. Usually, when half of the diamond grains fall off, the service life of the needle is over. As a result, the needle needs to be replaced as a whole after the needle head is worn out. Not only does it shorten the service life of the needle head, but it also wastes resources and increases the cost of use. To this end, we propose a flat-head cylindrical fixed-depth diamond turning needle. Utility Model Content

[0004] The main purpose of the utility model is to provide a flat-head cylindrical fixed-depth diamond grinding needle, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A flat-headed cylindrical fixed-depth diamond grinding needle comprises a needle handle and a needle head, a fixed cavity is provided inside the needle handle, and one end of the needle head is sleeved inside the fixed cavity, a first clamping block is fixedly connected to one side of the inner cavity of the fixed cavity, a connecting screw hole is provided on a side of the inner cavity of the fixed cavity relative to the first clamping block, a rotating rod is threadedly connected to the inner cavity of the connecting screw hole, a second clamping block is rotatably connected to the inner side of the rotating rod, and a clamping groove is provided at the top of the fixed cavity.

[0007] Furthermore, a threaded hole is provided at the center position of one side of the needle handle relative to the needle head, and the threaded hole is interconnected with the clamping groove, a depth-fixing screw is threadedly connected inside the threaded hole, and the inner side wall of the depth-fixing screw is in conflict with one end of the needle head.

[0008] Furthermore, a cross groove is provided at the top end of the depth-fixing screw.

[0009] Furthermore, a connector is fixedly connected to one end surface of the needle handle relative to the needle.

[0010] Furthermore, a connecting hole is provided on the same side of the needle handle as the needle head.

[0011] Furthermore, a rotating disk is fixedly connected to the outer side wall of the rotating rod.

[0012] Furthermore, arc-shaped grooves are formed on the facing surfaces of the first clamping block and the second clamping block, and protective rubber pads are provided on the inner side walls of the arc-shaped grooves.

[0013] Compared with the prior art, the utility model has the following beneficial effects: 1. The utility model cooperates with each other by setting a connecting hole, a turntable, a fixing cavity, a first clamping block, a connecting screw hole, a rotating rod and a second clamping block. The needle is inserted into the fixing cavity opened inside the needle handle through the connecting hole, one side is fitted with the inner side of the first clamping block, and the other side is rotated by the turntable to make the rotating rod move inward along the connecting thread, and push the second clamping block to move inward and fit the other side of the needle, so as to fix the needle inside the needle handle. When the diamond sand at one end of the needle is mostly worn, the turntable is rotated counterclockwise so that the turntable drives the rotating rod to move outward along the connecting screw hole, and the second clamping block connected inside is separated from the needle. The needle is taken out and reinserted into the needle handle in reverse position and is subjected to the needle. The utility model can realize multiple uses of the needle, increase the service life of the needle, reduce the cost of use, and can partially replace the needle when it is damaged, without replacing it as a whole, further playing a role in saving costs and meeting economic benefits; 2. The utility model cooperates with each other by setting a clamping groove, a threaded hole, a fixed depth screw and a cross groove. When used as a whole, according to needs, a screwdriver is used to rotate the fixed depth screw back and forth through the cross groove, so that the fixed depth screw moves up and down along the threaded hole, so as to adjust the length of the fixed depth screw extending into the clamping groove, and then indirectly control the length of the needle clamped in the inner cavity and the length of the needle exposed to the outside of the needle handle, so as to realize the depth positioning of the needle, and can adapt to different patients when in use, further improving the use effect of the needle. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a schematic diagram of the overall structure of a flat-head cylindrical fixed-depth diamond turning needle.

[0015] Figure 2 The utility model is a structural schematic diagram of an overall cross-sectional view of a flat-head cylindrical fixed-depth diamond grinding needle.

[0016] Figure 3 It is a structural schematic diagram of a top view of a connector of a flat-head cylindrical fixed-depth diamond turning needle of the utility model.

[0017] In the figure: 1. needle handle; 2. connecting hole; 3. needle head; 4. turntable; 5. connecting head; 6. fixing cavity; 7. first clamping block; 8. connecting screw hole; 9. rotating rod; 10. second clamping block; 11. clamping groove; 12. threaded hole; 13. fixing depth screw; 14. cross groove. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0019] like Figure 1-3 As shown, a flat-head cylindrical fixed-depth diamond grinding needle includes a needle handle 1 and a needle head 3. A fixed cavity 6 is provided inside the needle handle 1, and one end of the needle head 3 is sleeved inside the fixed cavity 6. A first clamping block 7 is fixedly connected to one side of the inner cavity of the fixed cavity 6. A connecting screw hole 8 is provided on one side of the inner cavity of the fixed cavity 6 relative to the first clamping block 7. A rotating rod 9 is threadedly connected to the inner cavity of the connecting screw hole 8. A second clamping block 10 is rotatably connected to the inner side of the rotating rod 9. A clamping groove 11 is provided at the top of the fixed cavity 6. The rotating rod 9 is rotated by the turntable 4. , so that the rotating rod 9 moves inward along the connecting thread, and pushes the second clamping block 10 to move inward and fit on the other side of the needle 3, so that the needle 3 is fixed inside the needle handle 1. When the diamond sand on one end of the needle 3 is mostly worn, the turntable 4 is rotated counterclockwise, so that the rotation drives the rotating rod 9 to move outward along the connecting screw hole 8, so that the second clamping block connected on the inside is separated from the needle, the needle is taken out and reinserted into the needle handle 1 in reverse position and fixed, so as to realize the multiple use of the needle, improve the service life of the needle, and reduce the cost of use.

[0020] Among them, a threaded hole 12 is provided at the center position of one side of the needle handle 1 relative to the needle 3, and the threaded hole 12 is interconnected with the clamping groove 11, and a depth-setting screw 13 is threadedly connected to the inside of the threaded hole 12, and the inner wall of the depth-setting screw 13 is in conflict with one end of the needle 3, and a cross groove 14 is provided at the top of the depth-setting screw 13; the depth-setting screw 13 is moved back and forth through the cross groove 14 by a screwdriver, so that the depth-setting screw 13 moves up and down along the threaded hole 12, so as to adjust the length of the depth-setting screw 13 extending into the clamping groove 11, and then indirectly control the length of the needle 3 clamped in the inner cavity, so as to control the length of the needle 3 exposed to the outside of the needle handle 1, so as to achieve depth positioning of the needle 3, and can adapt to different patients when in use.

[0021] Among them, the needle handle 1 is fixedly connected with a connecting head 5 on one end surface relative to the needle head 3, and the needle handle 1 is provided with a connecting hole 2 on the same side as the needle head 3; the connecting head 5 facilitates the connection and fixation of the needle handle 1 with the external high-speed and low-speed mobile phone body, and the connecting hole 2 facilitates the insertion of the needle head into the fixing cavity 6 inside the needle handle 1 for fixed use.

[0022] Among them, the outer side wall of the rotating rod 9 is fixedly connected with a turntable 4, the facing surfaces of the first clamping block 7 and the second clamping block 10 are both provided with arc grooves, and the inner side walls of the arc grooves are provided with protective rubber pads; the turntable 4 can drive the rotating rod 9 to rotate, so that the rotating rod 9 can move forward and backward along the threaded hole 12, and the arc groove and the protective rubber pad provided inside the arc groove can effectively fix the needle 3, and can also facilitate later replacement, thereby improving the use effect of the needle 3.

[0023] It should be noted that the utility model is a flat-head cylindrical fixed-depth diamond grinding needle. When working, the needle is inserted into the fixed cavity 6 on the inner side of the needle handle 1 through the connecting hole 2, and the fixing depth screw 13 is moved back and forth through the cross slot 14 by a screwdriver, so that the fixing depth screw 13 moves up and down along the threaded hole 12, so as to adjust the length of the fixing depth screw 13 extending into the clamping groove 11, and then indirectly control the length of the needle 3 clamped in the inner cavity, so as to control the length of the needle 3 exposed to the outside of the needle handle 1. After adjusting the length, the rotating rod 9 is rotated by the turntable 4, so that the rotating rod 9 moves inward along the connecting thread, and pushes the second clamping block 10 to move inward and fit on the other side of the needle 3, so as to fix the needle 3 inside the needle handle 1, so as to complete the assembly of the needle. The structure is simple and the use difficulty is low. While ensuring the use effect, it can also effectively improve the service life.

[0024] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A flat-head cylindrical fixed-depth diamond turning needle, comprising a needle handle (1) and a needle head (3), characterized in that: The needle handle (1) is provided with a fixed cavity (6) inside, and one end of the needle head (3) is sleeved inside the fixed cavity (6); a first clamping block (7) is fixedly connected to one side of the inner cavity of the fixed cavity (6); a connecting screw hole (8) is provided on a side of the inner cavity of the fixed cavity (6) opposite to the first clamping block (7); a rotating rod (9) is threadedly connected to the inner cavity of the connecting screw hole (8); a second clamping block (10) is rotatably connected to the inner side of the rotating rod (9); and a clamping groove (11) is provided at the top end of the fixed cavity (6).

2. A flat-head cylindrical fixed-depth diamond turning needle according to claim 1, characterized in that: A threaded hole (12) is provided at a central position on one side of the needle handle (1) relative to the needle head (3), and the threaded hole (12) is interconnected with the clamping groove (11), a depth-fixing screw (13) is threadedly connected inside the threaded hole (12), and an inner side wall of the depth-fixing screw (13) contacts one end of the needle head (3).

3. A flat-head cylindrical fixed-depth diamond turning needle according to claim 2, characterized in that: The top end of the depth-fixing screw rod (13) is provided with a cross groove (14).

4. A flat-head cylindrical fixed-depth diamond turning needle according to claim 1, characterized in that: The needle handle (1) is fixedly connected to a connector (5) on one end surface of the needle head (3).

5. A flat-head cylindrical fixed-depth diamond turning needle according to claim 1, characterized in that: The needle handle (1) is provided with a connecting hole (2) on the same side as the needle head (3).

6. A flat-head cylindrical fixed-depth diamond turning needle according to claim 1, characterized in that: The outer side wall of the rotating rod (9) is fixedly connected with a rotating disk (4).

7. A flat-head cylindrical fixed-depth diamond turning needle according to claim 1, characterized in that: The facing surfaces of the first clamping block (7) and the second clamping block (10) are both provided with arc-shaped grooves, and the inner side walls of the arc-shaped grooves are provided with protective rubber pads.

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