CN217138169U - Medical cranial drill bit convenient to disassemble and maintain - Google Patents

Abstract

The utility model discloses a medical cranial drill bit convenient to dismantle and maintain, which comprises a housin, the inboard fixed mounting of casing has the center pin, casing and fixedly connected with connector are run through at the top of center pin, the lower extreme fixed mounting of center pin has the positioning seat, the constant head tank has been seted up to the lower terminal surface of positioning seat, the lower extreme of casing runs through and is equipped with the drill bit, the fixed square that is equipped with in top of drill bit, the top fixedly connected with location column cap of square, location column cap and constant head tank looks adaptation, the lower extreme outer wall of casing runs through and is equipped with a plurality of dismantlement screw rod, the tip fixed mounting who dismantles the screw rod has the dismantlement subassembly. The utility model discloses the screw rod is dismantled in the antiport, makes spacing movable block keep away from the fixed block and removes to break away from the draw-in groove through the connecting rod, thereby dismantle the drill bit, whole process operation is simple, and the convenience is maintained the drill bit.

Description

Medical cranial drill bit convenient to disassemble and maintain

Technical Field

The utility model relates to the technical field of medical equipment, the medical cranial drill bit of maintenance is specifically convenient for dismantle.

Background

In human skull surgery, a skull drill is usually used to drill a hole in the skull. At present, the skull drill used in clinical operation has three types, namely an electric bone drill, a hand-operated bone drill and a hand awl drill, the electric bone drill consists of a shell, a motor, a transmission device and a drill chuck, the motor and the transmission device are both arranged in the shell, the motor is fixedly connected with the drill chuck through an output shaft of the transmission device, and along with the progress and development of medical science, the requirements on medical appliances are higher and higher.

The existing drill bit is mostly of an integrated structure in a T shape and cannot be detached, and when one of the parts is damaged, the whole trephine cannot be used, so that resource waste is caused, and the drill bit is inconvenient to use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a medical cranial drill bit convenient to dismantle and maintain to solve the problem of proposing among the above-mentioned background art.

In order to solve the technical problem, the utility model provides a following technical scheme: medical cranial drill bit convenient to dismantle and maintain, which comprises a housin, the inboard fixed mounting of casing has the center pin, casing and fixedly connected with connector are run through to the top of center pin, the lower extreme fixed mounting of center pin has the positioning seat, the constant head tank has been seted up to the lower terminal surface of positioning seat, the lower extreme of casing runs through and is equipped with the drill bit, the fixed square that is equipped with in top of drill bit, the top fixedly connected with location column cap of square, location column cap and constant head tank looks adaptation, the lower extreme outer wall of casing runs through and is equipped with a plurality of dismantlement screw rod, the tip fixed mounting who dismantles the screw rod has the dismantlement subassembly.

Furthermore, the positioning groove is a hexagonal groove, and the positioning column head is hexagonal prism-shaped.

Furthermore, the disassembling component comprises a limiting moving block which is rotatably connected to the end part of the disassembling screw rod, a connecting rod is hinged to the limiting moving block, clamping grooves are formed in each side face of the square, symmetrically-arranged fixing blocks are fixed to the bottom of the inner side of the shell, clamping blocks are hinged to the top of the limiting moving block, the clamping blocks are matched with the clamping grooves, and the clamping blocks are hinged to the tail ends of the connecting rods.

Furthermore, an inserting rod is fixedly connected to one side, close to the fixed block, of the limiting moving block, a spring is sleeved on the outer side of the inserting rod, a slot is formed in one side, far away from the square block, of the fixed block, and the inserting rod is matched with the slot.

Furthermore, the bottom of the limiting moving block is fixedly connected with a sliding block, and the bottom of the inner side of the shell is provided with a sliding groove matched with the sliding block.

Further, the both sides lower extreme outer wall of casing all articulates there is the protective cover, the lower extreme outer wall of casing offer with dismantle the screw hole of screw rod looks adaptation.

Compared with the prior art, the utility model discloses the beneficial effect who reaches is:

1. the utility model discloses a set up the disassembling component, through rotating the disassembling screw rod, the disassembling screw rod drives the spacing movable block to move to the fixed block, the spacing movable block drives the connecting rod to move, because the fixture block articulates at the top of fixed block, and then make things convenient for the connecting rod to drive the fixture block card to go into the draw-in groove next, thereby carry out further fixing to the drill bit, when dismantling, only need to rotate the disassembling screw rod backward, make the spacing movable block keep away from the fixed block and move, and break away from the draw-in groove through the connecting rod, thereby dismantle the drill bit, the whole process operation is simple, convenient and fast;

2. the utility model discloses a set up inserted bar and slot, the inserted bar when inserting the slot, under the pretightning force of spring, make the connecting rod drive fixture block and draw-in groove in close contact with to strengthen fixed effect, join in marriage with the slot through the inserted bar simultaneously and carry on spacingly to spacing movable block.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a cross-sectional view of the present invention;

fig. 2 is an enlarged schematic view of a portion a of fig. 1 according to the present invention;

FIG. 3 is a schematic view of the connection structure of the drill, the square block and the positioning column cap of the present invention;

FIG. 4 is an assembled cross-sectional view of the positioning stud and positioning slot of the present invention;

fig. 5 is a front view of the present invention;

in the figure: 1. a housing; 2. a central shaft; 3. a connector; 4. positioning seats; 5. positioning a groove; 6. a drill bit; 7. a square block; 8. positioning the column cap; 9. disassembling the screw; 10. disassembling the assembly; 101. a limiting moving block; 102. a connecting rod; 103. a card slot; 104. a fixed block; 105. a clamping block; 106. inserting a rod; 107. a spring; 108. a slot; 109. a slider; 1010. a chute; 11. a protective cover.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Please refer to fig. 1-5, the utility model provides a medical cranial drill bit convenient to dismantle and maintain, including casing 1, the inboard fixed mounting of casing 1 has center pin 2, casing 1 and fixedly connected with connector 3 are run through at the top of center pin 2, the lower extreme fixed mounting of center pin 2 has positioning seat 4, constant head tank 5 has been seted up to the lower terminal surface of positioning seat 4, the lower extreme of casing 1 runs through and is equipped with drill bit 6, the fixed square 7 that is equipped with in top of drill bit 6, the top fixedly connected with location column cap 8 of square 7, location column cap 8 and constant head tank 5 looks adaptation, the lower extreme outer wall of casing 1 runs through and is equipped with a plurality of dismantlement screw rod 9, the end fixing who dismantles screw rod 9 installs dismantlement component 10.

In a preferred embodiment, the positioning slot 5 is a hexagonal slot, the positioning stud 8 is a hexagonal prism, and the positioning stud 8 is inserted into the positioning slot 5 to initially position the drill bit 6, so as to facilitate positioning and installation of the drill bit.

In a preferred embodiment, the disassembling assembly 10 includes a limiting moving block 101 rotatably connected to an end of the disassembling screw 9, the limiting moving block 101 is hinged to a connecting rod 102, each side surface of the block 7 is provided with a slot 103, the bottom of the inner side of the housing 1 is fixed with symmetrically arranged fixing blocks 104, the top of the limiting moving block 101 is hinged to a fixture block 105, the fixture block 105 is matched with the slot 103, the fixture block 105 is hinged to the end of the connecting rod 102, the disassembling screw 9 is rotated to drive the limiting moving block 101 to move towards the fixing block 104, the limiting moving block 101 drives the connecting rod 102 to move, the fixture block 105 is hinged to the top of the fixing block 104, the connecting rod 102 drives the fixture block 105 to be clamped into the slot 103 conveniently, so as to further fix the drill 6, and only the disassembling screw 9 needs to be rotated reversely, the limiting moving block 101 is far away from the fixing block 104 and moves, and the connecting rod 102 is separated from the clamping groove 103, so that the drill bit 6 is detached, and the whole process is simple to operate, convenient and fast.

In a preferred embodiment, an insertion rod 106 is fixedly connected to one side of the limiting moving block 101 close to the fixed block 104, a spring 107 is sleeved on the outer side of the insertion rod 106, a slot 108 is formed in one side of the fixed block 104 far from the block 7, the insertion rod 106 is matched with the slot 108, and when the insertion rod 106 is inserted into the slot 108, under the pretightening force of the spring 107, the connecting rod 102 drives the clamping block 105 to be in close contact with the clamping slot 103, so that the fixing effect is enhanced, and meanwhile, the limiting moving block 101 is limited through the matching of the insertion rod 106 and the slot 108.

In a preferred embodiment, a sliding block 109 is fixedly connected to the bottom of the limiting moving block 101, a sliding groove 1010 matched with the sliding block 109 is formed in the bottom of the inner side of the housing 1, and the sliding block 109 slides in the sliding groove 1010, so that the limiting moving block 101 and the inserted link 106 move more stably.

In a preferred embodiment, both sides lower extreme outer wall of casing 1 all articulates there is protective cover 11, the lower extreme outer wall of casing 1 offer with dismantle the screw hole of screw rod 9 looks adaptation, protect dismantling screw rod 9 through protective cover 11, prevent that the mistake from touching.

The utility model discloses a theory of operation: by rotating the disassembling screw 9, the disassembling screw 9 then drives the limiting moving block 101 to move towards the fixed block 104, the limiting moving block 101 then drives the connecting rod 102 to move, the clamping block 105 is hinged to the top of the fixed block 104, and then the connecting rod 102 then drives the clamping block 105 to be clamped into the clamping groove 103 conveniently, so that the drill bit 6 is further fixed, when disassembling, only the disassembling screw 9 needs to be rotated reversely, the limiting moving block 101 is enabled to move away from the fixed block 104 and is separated from the clamping groove 103 through the connecting rod 102, so that the drill bit 6 is disassembled, and the whole process is simple in operation, convenient and rapid; through setting up inserted bar 106 and slot 108, when inserted bar 106 is inserting slot 108, under the pretightning force of spring 107, make connecting rod 102 drive fixture block 105 and draw-in groove 103 in close contact with to strengthen fixed effect, join in marriage with slot 108 through inserted bar 106 simultaneously and carry out spacingly to spacing movable block 101, slider 109 slides in spout 1010, make spacing movable block 101 and inserted bar 106 remove more stable, protect dismantling screw 9 through protective cover 11, prevent that the mistake from touching.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. Medical cranial drill bit convenient to disassemble and maintain, comprising a shell (1), and is characterized in that: the utility model discloses a drill bit, including casing (1), inboard fixed mounting of casing (1) has center pin (2), casing (1) and fixedly connected with connector (3) are run through at the top of center pin (2), the lower extreme fixed mounting of center pin (2) has positioning seat (4), constant head tank (5) have been seted up to the lower terminal surface of positioning seat (4), the lower extreme of casing (1) is run through and is equipped with drill bit (6), the fixed square (7) that are equipped with in top of drill bit (6), the top fixedly connected with location column cap (8) of square (7), location column cap (8) and constant head tank (5) looks adaptation, the lower extreme outer wall of casing (1) runs through and is equipped with a plurality of dismantles screw rod (9), the end fixing who dismantles screw rod (9) installs dismantlement subassembly (10).

2. The medical cranial drill bit to facilitate removal and maintenance of claim 1, wherein: the positioning groove (5) is a hexagonal groove, and the positioning column head (8) is hexagonal prism-shaped.

3. The medical cranial drill bit to facilitate removal and maintenance of claim 1, wherein: the disassembling component (10) comprises a limiting moving block (101) which is rotatably connected to the end of the disassembling screw rod (9), a connecting rod (102) is hinged to the limiting moving block (101), a clamping groove (103) is formed in each side face of the square block (7), symmetrically arranged fixing blocks (104) are fixed to the bottom of the inner side of the shell (1), a clamping block (105) is hinged to the top of the limiting moving block (101), the clamping block (105) is matched with the clamping groove (103), and the clamping block (105) is hinged to the tail end of the connecting rod (102).

4. A medical cranial drill bit to facilitate removal and maintenance according to claim 3, wherein: an inserted bar (106) is fixedly connected to one side, close to the fixed block (104), of the limiting moving block (101), a spring (107) is sleeved on the outer side of the inserted bar (106), a slot (108) is formed in one side, far away from the square block (7), of the fixed block (104), and the inserted bar (106) is matched with the slot (108).

5. A medical cranial drill bit to facilitate removal and maintenance according to claim 3, wherein: the bottom of the limiting moving block (101) is fixedly connected with a sliding block (109), and the bottom of the inner side of the shell (1) is provided with a sliding groove (1010) matched with the sliding block (109).

6. The medical cranial drill bit to facilitate removal and maintenance of claim 1, wherein: the both sides lower extreme outer wall of casing (1) all articulates there is protective cover (11), the screw hole with dismantling screw rod (9) looks adaptation is seted up to the lower extreme outer wall of casing (1).

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