Machine head of electric dental wrench

Abstract

The utility model relates to a machine head of an electric dental wrench, which comprises a machine shell, a reduction gearbox, a transmission rod and a torsion needle rod mechanism, the torsion needle rod mechanism comprises a torsion needle rod, a side tightening spring, a clamping block, a needle rod machine core, a spring and an unlocking pressing cover, and a gear machine core is in transmission connection with a gear at one end of the transmission rod. The torsion needle bar is in pluggable connection with the needle bar machine core component; the clamping block is pressed at the upper end of the needle bar movement through the side tightening spring, the clamping buckle on the clamping block is clamped with the clamping groove, so that the torsion needle bar is locked, when the unlocking gland is pressed and the unlocking gland moves towards the interior of the machine shell, the torsion needle bar can be unlocked, and the torsion needle bar can be locked. And the inclined surface bulge drives the clamping block to slide horizontally, and the buckle is released from the clamping groove, so that the torsion needle rod can be pulled out. The clamping block is arranged at the upper end of the sliding needle bar machine core and does not need to be welded, so that the sliding needle bar machine core is simple in structure, practical, easy to assemble and convenient to produce.

Description

Technical Field

[0001] The utility model relates to the technical field of electric dental wrenches, in particular to a head of an electric dental wrench. Background Art

[0002] Digital implants are used in dental preoperative design, implant placement, and repair processes. During surgery, torque wrenches are often used to tighten and remove cover screws or healing bases. In order to meet different implant needs, a variety of wrenches with different heads are required, which is not convenient to use. In the related art, a solution of a dental implant digital wrench (Announcement No. CN220293683U) was found through search. The user can intuitively observe the torque from the torque identification component and adjust the torque through the spring rod, so as to control the torque within a suitable range, ensuring that the dental implant is stable and will not be damaged by excessive force. The needle bar movement components include a needle bar movement and a needle bar positioning block. The needle bar positioning block is welded in the needle bar movement, but the structure of the head of the existing dental wrench is complex and the production is complex, and a welding machine is required to weld the needle bar positioning block and the needle bar movement. Utility Model Content

[0003] The utility model aims to provide a handpiece of an electric dental wrench which is easy and convenient to produce.

[0004] The purpose of the utility model is achieved in this way:

[0005] The head of an electric dental wrench comprises a casing, a reduction box, a transmission rod and a torque needle rod mechanism. The torque needle rod mechanism is arranged at the front end of the casing, the reduction box is arranged at the rear end of the casing, the transmission rod is arranged in the casing, and the two ends of the transmission rod are respectively connected to the torque needle rod mechanism and the output end transmission gear of the reduction box. The torque needle rod mechanism comprises a torque needle rod, a side tightening spring, a card block, a needle rod movement, a spring and an unlocking pressing cover. The gear movement is connected to the gear at one end of the transmission rod. The unlocking pressing cover is arranged at the front end of the casing so as to move up and down. The spring is arranged between the unlocking pressing cover and the casing. The torque needle bar is inserted into the needle bar movement and is connected to the needle bar movement in transmission. The torque needle bar and the needle bar movement components are pluggable. A card slot is provided at the upper end of the torque needle bar, and a card block is slidably arranged at the upper end of the needle bar movement. A side tightening spring is arranged at the upper end of the needle bar movement. The side tightening spring presses the card block to the upper end of the needle bar movement. A buckle that matches the card slot is provided on the card block. The buckle is engaged with the card slot. The inner surface of the unlocking cover is provided with an inclined protrusion that matches the inclined surface of the card block. When the unlocking cover moves into the casing, the inclined protrusion drives the card block to slide horizontally, and the buckle is disengaged from the card slot. The utility model presses the card block to the upper end of the needle bar movement through the side tightening spring, and the buckle on the card block is engaged with the card slot, thereby locking the torque needle bar. When the unlocking cover is pressed and the unlocking cover moves into the casing, the inclined protrusion drives the card block to slide horizontally, and the buckle is disengaged from the card slot, so that the torque needle bar can be pulled out. The clamping block of the utility model is slidably arranged on the upper end of the needle bar movement, and welding is not required. Therefore, the utility model has a simple and practical structure, is easy to assemble, and is convenient to produce.

[0006] The utility model can also be further improved as follows.

[0007] A guide groove is arranged on the side wall of the needle bar movement, and the clamping block is slidably arranged on the guide groove.

[0008] The card slot is a groove that can be clamped by a card block.

[0009] The side tightening spring is a torsion spring, and the torsion spring sleeve is arranged on the upper end of the needle bar movement.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] The utility model presses the card block to the upper end of the needle bar movement through the side tightening spring, and the buckle on the card block is engaged with the card slot, so as to lock the torque needle bar. When the unlocking cover is pressed and the unlocking cover moves into the housing, the inclined protrusion drives the card block to slide horizontally, and the buckle is disengaged from the card slot, so that the torque needle bar can be pulled out. The card block of the utility model is the upper end of the sliding needle bar movement, and no welding is required. Therefore, the utility model has a simple structure, is practical, easy to assemble, and is convenient to produce. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 The utility model is a schematic diagram of the structure of the head of the electric dental wrench.

[0013] Figure 2 It is a structural schematic diagram of the head of the electric dental wrench of the utility model from another angle.

[0014] Figure 3 The utility model is an exploded view of the handpiece of the electric dental wrench.

[0015] Figure 4 It is an exploded view of the gear box of the present utility model.

[0016] Figure 5 It is a sectional view of the handpiece of the electric dental wrench of the utility model.

[0017] Figure 6 It is a structural schematic diagram of the torque needle rod mechanism of the utility model.

[0018] Figure 7 It is an exploded view of the torque needle rod mechanism of the utility model.

[0019] Figure 8 It is an exploded view of the casing of the utility model. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0021] Embodiment 1, as Figures 1 to 8As shown, a head of an electric dental wrench includes a casing 1, a reduction box 2, a transmission rod 3 and a torque needle rod mechanism 4. The torque needle rod mechanism 4 is arranged at the front end of the casing 1, the reduction box 2 is arranged at the rear end of the casing 1, the transmission rod 3 is arranged in the casing 1, and the two ends of the transmission rod 3 are respectively connected to the torque needle rod mechanism 4 and the output end transmission gear of the reduction box 2. The torque needle rod mechanism 4 includes a torque needle rod 43, a side tightening spring 45, a block 44, a needle rod movement 41, a spring 6 and an unlocking pressing cover 5. The gear movement is connected to the gear at one end of the transmission rod 3. The unlocking pressing cover 5 is movably arranged at the front end of the casing 1, the spring 6 is arranged between the unlocking pressing cover 5 and the casing 1, and the torque needle rod 43 is inserted into the needle bar movement 41 and is connected to the needle bar movement 41. The torque needle bar 43 and the needle bar movement 41 are pluggable and connected; a slot 46 is provided at the upper end of the torque needle bar 43, and a block 44 is slidably set at the upper end of the needle bar movement 41. A side tightening spring 45 is provided at the upper end of the needle bar movement 41. The side tightening spring 45 presses the block 44 to the upper end of the needle bar movement 41. A buckle 47 cooperating with the slot 46 is provided on the block 44. The buckle 47 is engaged with the slot 46. The inner surface of the unlocking cover 5 is provided with an inclined protrusion 51 cooperating with the inclined transmission of the block 44. When the user wants to pull out the torque needle bar, the user presses the unlocking cover, and the unlocking cover moves into the casing 1. The inclined protrusion 51 drives the block 44 to slide horizontally to one side, and the buckle 47 on the block 44 is disengaged from the slot 46, and the user can pull out the torque needle bar. When the user inserts a new torque needle bar into the needle bar movement 41, the new torque needle bar pushes open the block 44, and the block 44 slides horizontally to one side. Then, under the elastic force of the side tightening spring 45, the buckle 47 on the block 44 engages with the slot 46 of the new torque needle bar, thereby fixing the new torque needle bar.

[0022] As a more specific technical solution of the utility model.

[0023] A guide groove 49 is provided on the side wall of the needle bar movement 41 , and the clamping block 44 is slidably disposed on the guide groove 49 .

[0024] The clamping slot 46 is a groove and can be clamped by the clamping block 44 .

[0025] The side tightening spring 45 is a torsion spring, which is sleeved on the upper end of the needle bar movement 41 .

[0026] A driven inclined surface 48 is provided on the buckle 47, and the driven inclined surface facilitates the torque needle rod to push open the clamping block 44.

Claims

1. A head of an electric dental wrench, comprising a housing, a reduction box, a transmission rod and a torque needle rod mechanism, wherein the torque needle rod mechanism is arranged at the front end of the housing, the reduction box is arranged at the rear end of the housing, the transmission rod is arranged in the housing, and the two ends of the transmission rod are respectively connected to the torque needle rod mechanism and the output end transmission gear of the reduction box, wherein the characteristics are: The torsion needle bar mechanism comprises a torsion needle bar, a side tightening spring, a card block, a needle bar movement, a spring and an unlocking pressing cover. The gear movement is connected to one end of the transmission rod through gear transmission. The unlocking pressing cover is movably arranged at the front end of the casing, and the spring is arranged between the unlocking pressing cover and the casing. The torsion needle bar is inserted into the needle bar movement and is connected to the needle bar movement through transmission. The torsion needle bar and the needle bar movement components are pluggable. A card slot is provided at the upper end of the torsion needle bar, and the card block is slidably arranged at the upper end of the needle bar movement. The side tightening spring is arranged at the upper end of the needle bar movement. The side tightening spring presses the card block to the upper end of the needle bar movement. A card buckle is provided on the card block, and the card buckle is engaged with the card slot. The inner surface of the unlocking pressing cover is provided with an inclined protrusion that cooperates with the inclined transmission of the card block. When the unlocking pressing cover moves into the casing, the inclined protrusion drives the card block to slide horizontally, and the card buckle is disengaged from the card slot.

2. The handpiece of the electric dental wrench according to claim 1, characterized in that: A guide groove is arranged on the side wall of the needle bar movement, and the clamping block is slidably arranged on the guide groove.

3. The handpiece of the electric dental wrench according to claim 1, characterized in that: The card slot is a groove.

4. The handpiece of the electric dental wrench according to claim 1, characterized in that: The side tightening spring is a torsion spring, and the torsion spring sleeve is arranged on the upper end of the needle bar movement.

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