Manual screwdriver

Abstract

The utility model discloses a manual screwdriver, which relates to the technical field of screwdrivers and comprises a fixing block, a screwdriver body is fixedly arranged at the lower end of the fixing block, a rotating ring is arranged on the fixing block, a fixing groove is formed in the fixing block, two pairs of clamping grooves are formed in the fixing block, and two pairs of grapnels are fixedly arranged at the lower end of the rotating ring. The manual screwdriver is composed of two parts, one part is the rotating ring with the four grappling hooks, the other part is the fixing block and the screwdriver body, the grappling hooks are connected with the fixing block in a buckling mode, in the assembling process, the grappling hooks at the lower end of the rotating ring are squeezed into the fixing grooves, the grappling hooks can elastically deform in the downward pressing process, and therefore the screwdriver can be assembled. When the grapnels are clamped into the clamping grooves, the grapnels can automatically restore to original shapes, so that the main body fixing block is clamped, the two parts of the screw are connected through the buckles under the action of elastic deformation, the connecting position is compact, the loosening situation cannot occur, the technology is optimized, the structure of the device is simplified, materials and procedures are saved, and the production cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of screw driver, especially a hand screw driver. BACKGROUND

[0002] The nutrition for human growth and development comes from the stomach and small intestine which bear the digestive absorption function, but the prerequisite for digestion and absorption is the mastication function provided by teeth, and food is cut and broken by teeth before entering the esophagus and stomach. This process will cause wear and tear to the teeth. Teeth are continuously worn and torn in the process of day-to-day accumulation, and therefore need to be repaired to maintain the function of the teeth. Different treatment plans are available according to the degree of damage to the teeth. In the field of implantation, a small screw or healing abutment is connected to the implant, and the healing abutment needs to be screwed in by a screw driver during connection until the implant and the healing abutment / small screw are completely fitted. The healing abutment also needs to be removed in the second stage of implantation. Therefore, a screw driver is needed in this process to tighten or loosen the screw / healing abutment.

[0003] The existing screw driver is divided into a hand screw driver and a machine screw driver. The machine screw driver needs to be used in cooperation with an adapter, while the hand screw driver can be used independently and is used by hand or through a wrench. The existing hand screw driver is mostly provided with a pin structure, and the structure of the existing hand screw driver is divided into three parts, namely, a rotating ring, a pin, and a screw driver body. The rotating ring and the screw driver body are connected by pressing the pin to form the hand screw driver. The pin plane and the rotating ring plane form a platform, and the platform is convenient for laser-engraved information to identify the model and specifications of the screw driver. However, the pin of the hand screw driver may not be pressed tightly in the process, which may cause the rotating ring of the hand screw driver to be loose and fall into the patient's mouth during use, or blood may flow into the hand screw driver through the gap between the pin and the rotating ring, thereby causing incomplete disinfection and sterilization. The hand screw driver is a dental instrument that can be repeatedly disinfected and used, and incomplete disinfection may cause cross-infection of the patient. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at solving the defects of complex structure and looseness in the prior art, and provides a hand screw driver.

[0005] In order to solve the problems in the prior art, the utility model adopts the following technical scheme:

[0006] A hand screw driver, comprising a fixed block, a screw driver body is fixedly arranged at the lower end of the fixed block, a rotating ring is arranged on the fixed block, a fixed groove is formed in the fixed block, two pairs of clamping grooves are formed in the fixed block, and two pairs of clamping hooks are fixedly arranged at the lower end of the rotating ring.

[0007] Preferably, the two pairs of clamping hooks correspond to the two pairs of clamping grooves one by one, and the two pairs of clamping hooks are clamped with the two pairs of clamping grooves, respectively.

[0008] The grab hooks are made of deformable material and have the ability of quick rebound.

[0009] The first sealing groove is arranged on the fixed block, and the second sealing groove is arranged on the rotating ring.

[0010] The sealing assembly comprises a plurality of springs, the springs are fixedly arranged in the first sealing groove, a circular ring is slidably arranged in the first sealing groove, the circular ring is fixedly connected with the plurality of springs, the circular ring is slidably connected with the second sealing groove, and a sealing ring is fixedly arranged in the first sealing groove and the second sealing groove.

[0011] Compared with the prior art, the utility model has the advantages of:

[0012] 1. In the utility model, the hand screwdriver is composed of two parts, one part is a rotating ring with four grab hooks, and the other part is a fixed block and a screwdriver body. The grab hooks are connected with the fixed block by buckling. During assembly, the grab hooks at the lower end of the rotating ring are pressed into the fixed groove. The grab hooks will elastically deform during the downward pressing process. When the grab hooks are buckled into the buckle groove, they will automatically restore to the original shape, thereby buckling the main fixed block. By utilizing the elastic deformation effect, the two parts of the screwdriver are connected by buckling. The connection is tight and will not loosen. The process is optimized, the structure of the device is simplified, and the production cost is reduced.

[0013] 2. In the utility model, during assembly of the screwdriver, the circular ring is buckled into the second sealing groove, and the sealing ring seals the connection between the circular ring and the first sealing groove and the second sealing groove. During use of the device, the patient's blood will not flow into the interior of the device through the gap between the fixed block and the rotating ring, and the disinfection work after the operation is simpler. BRIEF DESCRIPTION OF DRAWINGS

[0014] The drawings described herein are used to provide a further understanding of the utility model and form part of the present application. The schematic embodiments of the utility model and the description thereof are used to explain the utility model and do not constitute an improper limitation on the utility model. In the drawings:

[0015] Figure 1 It is a front view structure schematic diagram of the utility model;

[0016] Figure 2 It is a fixed groove structure schematic diagram of the utility model;

[0017] Figure 3 It is a spring and circular ring position relationship schematic diagram of the utility model;

[0018] Figure 4The utility model discloses a rotating ring and grab hook connection relationship schematic drawing.

[0019] In the drawing, the serial number is: 1, fixed block, 11, screw starter body, 12, rotating ring, 13, fixed groove, 14, clamping groove, 15, grab hook, 2, first sealing groove, 21, second sealing groove, 3, spring, 31, circular ring, 32, sealing ring. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be apparently and completely described in connection with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative work belong to the range protected by the utility model.

[0021] In the description of the utility model, it is necessary to explain that, unless there is explicit provision and limitation, the terms "mounting", "setting", "sleeving / connecting", "connection" and the like should be understood in a broad sense. For example, "connection" can be fixed connection, can be detachable connection, or integrally connected; can be mechanical connection, can be electrical connection; can be directly connected, can be indirectly connected through intermediate medium, can be the communication inside two elements. For the ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0022] Embodiment: the embodiment provides a hand screw starter, and the hand screw starter is seen in Figures 1-4 , and specifically, the hand screw starter comprises a fixed block 1, the lower end of the fixed block 1 is fixedly provided with a screw starter body 11, the upper end of the fixed block 1 is provided with a rotating ring 12, the fixed block 1 is provided with a fixed groove 13, the fixed block 1 is provided with two pairs of clamping grooves 14, the lower end of the rotating ring 12 is fixedly provided with two pairs of grab hooks 15, the two pairs of grab hooks 15 correspond to the two pairs of clamping grooves 14 one by one, the two pairs of grab hooks 15 and the two pairs of clamping grooves 14 are clamped respectively, the grab hooks 15 are made of deformable material and have the ability of rapid rebound.

[0023] The hand screw starter comprises two parts, one part is the rotating ring 12 with four grab hooks 15, and the other part is the fixed block 1 and the screw starter body 11, the grab hooks 15 are connected with the fixed block 1 in a buckling mode, in assembly, the grab hooks 15 at the lower end of the rotating ring 12 are pressed into the fixed groove 13, the grab hooks 15 will be elastically deformed in the process of being pressed downward, and the grab hooks 15 will automatically restore the original shape after being clamped into the clamping grooves 14, so that the main body fixed block 1 is clamped, the two parts of the screw starter are connected through the buckling connection by the elastic deformation effect, the connection is relatively compact, and the loosening situation does not occur, the process is optimized, the structure of the device is simplified, material and process are saved, and the production cost is reduced.

[0024] The first sealing groove 2 is arranged on the fixed block 1, the second sealing groove 21 is arranged on the rotating ring 12, the sealing assembly is arranged between the first sealing groove 2 and the second sealing groove 21, the sealing assembly comprises a plurality of springs 3, the springs 3 are fixedly arranged in the first sealing groove 2, the circular ring 31 is slidably arranged in the first sealing groove 2, the circular ring 31 is fixedly connected with the springs 3, the circular ring 31 is slidably connected with the second sealing groove 21, and the sealing rings 32 are fixedly arranged in the first sealing groove 2 and the second sealing groove 21.

[0025] When the screwdriver is assembled, the circular ring 31 is clamped into the second sealing groove 21, and the sealing ring 32 seals the connecting position of the circular ring 31, the first sealing groove 2 and the second sealing groove 21, so that the blood of the patient cannot flow into the device through the gap between the fixed block 1 and the rotating ring 12 during use of the device, and the disinfection work after the operation is simpler.

[0026] Specifically, the working principle and operation method of the utility model are as follows:

[0027] The hand screwdriver is composed of two parts, one part is the rotating ring 12 with four hooks 15, and the other part is the fixed block 1 and the screwdriver body 11, the hooks 15 are connected with the fixed block 1 in a buckling mode, in the assembly process, the hooks 15 at the lower end of the rotating ring 12 are pressed into the fixed groove 13, the hooks 15 are elastically deformed during downward pressing, and the hooks 15 automatically restore the original shape after being clamped into the clamping groove 14, so as to clamp the main fixed block 1, the two parts of the screwdriver are connected through buckling, the connecting position is relatively firm, and the loosening phenomenon does not occur, the process is optimized, the structure of the device is simplified, materials and processes are saved, and the production cost is reduced.

[0028] When the screwdriver is assembled, the circular ring 31 is clamped into the second sealing groove 21, and the sealing ring 32 seals the connecting position of the circular ring 31, the first sealing groove 2 and the second sealing groove 21, so that the blood of the patient cannot flow into the device through the gap between the fixed block 1 and the rotating ring 12 during use of the device, and the disinfection work after the operation is simpler.

[0029] The above is only the preferred specific implementation manner of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the technical field can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, and all of them should be covered in the protection scope of the utility model.

Claims

1. A hand screwdriver comprising a fixed block (1), characterized in that: The fixed block (1) is provided with a screw body (11) at the lower end, a rotating ring (12) is arranged on the fixed block (1), a fixed groove (13) is arranged in the fixed block (1), two pairs of clamping grooves (14) are arranged in the fixed block (1), and two pairs of hooks (15) are arranged at the lower end of the rotating ring (12).

2. A hand screwdriver according to claim 1, characterized in that: The two pairs of hooks (15) correspond to the two pairs of clamping grooves (14) one by one, and the two pairs of hooks (15) and the two pairs of clamping grooves (14) are clamped respectively.

3. A hand screwdriver according to claim 1, characterized in that: The hooks (15) are made of deformable material and have the ability to quickly rebound.

4. A hand screwdriver according to claim 1, characterized in that: A first sealing groove (2) is arranged on the fixed block (1), a second sealing groove (21) is arranged on the rotating ring (12), and a sealing assembly is arranged between the first sealing groove (2) and the second sealing groove (21).

5. A hand screwdriver according to claim 4, characterized in that: The sealing assembly comprises a plurality of springs (3), the springs (3) are fixedly arranged in the first sealing groove (2), a circular ring (31) is slidably arranged in the first sealing groove (2), the circular ring (31) is fixedly connected with the plurality of springs (3), the circular ring (31) is slidably connected with the second sealing groove (21), and sealing rings (32) are fixedly arranged in the first sealing groove (2) and the second sealing groove (21).

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