CN203650368U - Push type screwdriver - Google Patents

Abstract

The utility model discloses a push-type screwdriver, which comprises an upper shell of a knife handle, a lower shell of a knife handle, a shaft at the front end of a knife handle and a knife head, a lower shell baffle at the port of the upper shell of the knife handle and a lower shell of the knife handle The upper casing baffle at the body port is abutted against, and the inside of the upper casing of the knife handle is provided with first gears respectively matched with the first gear mounted on the first connecting rod and the second gear mounted on the second connecting rod. The rack and the second rack; one end of the first fixed frame and the second fixed frame are respectively fixedly installed on the concave surface of the lower shell of the handle, and the first connecting rod and the second connecting rod pass through the first fixed frame and the second connecting rod respectively. The second fixed frame is provided, and the ends of the first connecting rod and the second connecting rod are respectively installed with a first driving bevel gear and a second driving bevel gear; one end of the front end shaft of the handle is provided with a passive bevel gear. The utility model makes the head of the screwdriver rotate by pressing, has low manufacturing and use costs, wide application range, and is convenient for popularization and use.

Description

push screwdriver

technical field

The utility model relates to a screwdriver, in particular to a push-type screwdriver.

Background technique

A common hardware tool, a screwdriver is a tool used to turn a screw to force it into place. A screwdriver usually has a thin wedge-shaped head that fits into a groove or bump in the screw head. Its working principle is to drive the cutter head to rotate in the groove or concave-convex of the screw head by turning the handle, so that the whole screw can rotate clockwise or counterclockwise.

At present, the widely used screwdriver has its cutter head, cutter bar and handle all solidly connected as one. When tightening or removing a screw, it is necessary to continuously rotate the wrist forward and backward, and realize tightening or tightening by applying pressure and torque to the screw. Disassembly, due to the uneven use of pressure and torque, when the force is rotated, the knife edge and the groove are often misaligned, damaging the groove of the screw, and causing the screw to be scrapped. Another disadvantage of the general manual screwdriver is that it cannot be disassembled by a screwdriver alone. , must rely on other tools, some more professional fields use electric and pneumatic screwdrivers, but the cost is high, and it is affected by electricity or gas when used, it is not easy to operate, and there are certain defects.

Utility model content

The technical problem to be solved by the utility model is to provide a push-type screwdriver aiming at the deficiencies in the above-mentioned prior art. The utility model has the advantages of high speed, low manufacturing and use costs, no limitation of electricity or gas consumption, wide application range, long service life, strong practicability, good application effect, and is convenient for popularization and use.

In order to solve the above technical problems, the technical solution adopted by the utility model is: a push-type screwdriver, which is characterized in that it includes a concave upper shell of the handle, a lower shell of the handle and a shaft at the front end of the handle. An upper casing baffle and a lower casing baffle are respectively arranged at the ports of the upper casing of the knife handle and the lower casing of the knife handle, and the lower surface of the lower casing baffle is offset against the upper surface of the upper casing baffle Then, the inner surface of the upper shell of the knife handle, the inner surface of the lower shell of the knife handle and the upper surface of the baffle of the lower shell form a cavity; the upper shell of the knife handle is provided with a hole that allows the first connecting rod to pass through and up and down A moving first moving slot and a second moving slot that allows the second connecting rod to pass through and move up and down, the upper housing of the tool handle is inside and located on the same side of the first moving slot and the second moving slot A first rack and a second rack are respectively provided, and the first rack and the second rack are matched with the first gear and the second gear respectively, and the first gear and the second gear are fixedly mounted on the first gear respectively. On the connecting rod and the second connecting rod; one end of the first fixed frame is fixedly installed on the concave surface of the lower shell of the knife handle and close to the first moving groove, and one end of the second fixed frame is fixedly installed on the knife handle On the concave surface of the lower housing of the handle and close to the second moving groove; the first connecting rod is set through the first moving groove and the first fixing bracket, and the first connecting rod is located in the hollow A first driving bevel gear is fixedly installed at one end of the cavity, the second connecting rod passes through the second moving slot and the second fixing frame, and the second connecting rod is located at one end of the cavity. The end is fixed with a second active bevel gear; the front end shaft of the knife handle is set through the lower shell of the knife handle, and the end of the front end shaft of the knife handle located in the cavity is provided with a passive bevel gear, and the passive cone The gear can be meshed with the first driving bevel gear and the second driving bevel gear, and the cutter head is installed on the other end of the front end shaft of the handle; the partition is arranged on the other end of the first fixing frame and the second fixing frame , the two ends of the return spring of the upper housing are respectively fixedly connected to the upper end inside the upper housing of the handle and the upper surface of the partition.

The above-mentioned push-type screwdriver is characterized in that: first rolling bearings and second rolling bearings are installed on the first fixing bracket and the second fixing bracket, and the first connecting rod and the second connecting rod pass through the first connecting rod respectively. A rolling bearing and a second rolling bearing are provided.

The above-mentioned push-type screwdriver is characterized in that: a round hole is opened at the middle position of the lower end of the lower shell of the knife handle, and a shaft connected to the front end of the knife handle is arranged inside the lower shell of the knife handle and located inside the round hole. A tightly fitted bearing with seat, the axis of the bearing with seat coincides with the axis of the round hole, and the front end shaft of the tool holder passes through the bearing with seat.

The above-mentioned push-type screwdriver is characterized in that: the first connecting rod and the outer side of the first gear are provided with a first locking groove and a second locking groove, and the first connecting rod is located outside the cavity The end of one end is provided with a first button cap; the outer side of the upper casing of the knife handle and below the first connecting rod is provided with a first return spring groove, and one end of the first pull rod return spring is fixedly installed in the first return spring groove Inside; the other end of the return spring of the first pull rod is fixedly connected with the first pull rod, and the first pull rod can be matched with the first draw-in slot or the second draw-in slot.

The above-mentioned push-type screwdriver is characterized in that: the second connecting rod and the outer side of the second gear are provided with a third locking groove and a fourth locking groove, and the second connecting rod is located outside the cavity The end of one end is provided with a second button cap; the outer side of the upper casing of the knife handle and below the second connecting rod is provided with a second return spring groove, and one end of the second pull rod return spring is fixedly installed in the second return spring groove Inside; the other end of the return spring of the second pull rod is fixedly connected with the second pull rod, and the second pull rod can cooperate with the third or fourth draw slot.

The above-mentioned push-type screwdriver is characterized in that: the shaft at the front end of the handle is connected to the bit through a shaft segment with a regular hexagonal cross section and a blind hole.

Compared with the prior art, the utility model has the following advantages:

1. The utility model adopts an integrated and modular design, the circuit structure is simple, the design is reasonable, and the realization is convenient.

2. The utility model can rotate the screwdriver head by pressing the handle shell, and the rotation speed is high, and the use and operation are convenient.

3. The utility model has low manufacturing and use costs, is not limited by electricity or gas consumption, has a wide application range and a long service life.

4. The utility model has strong practicability, good use effect, and is convenient for popularization and use.

To sum up, the utility model is reasonable in design, easy to implement, easy to use and operate, can rotate the screwdriver bit by pressing, and the rotation speed is high, the manufacturing and use costs are low, and it is not limited by electricity or gas. Wide and long service life, strong practicability, good use effect, easy to popularize and use.

The technical solutions of the present utility model will be further described in detail through the drawings and embodiments below.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is an enlarged view of part A of Fig. 1 .

Fig. 3 is a schematic diagram of the connection relationship among the first connecting rod, the first gear and the first rack.

FIG. 4 is an enlarged view of part B of FIG. 1 .

Explanation of reference signs:

Detailed ways

As shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the utility model comprises a recessed handle upper shell 1, a recessed handle lower shell 2 and a handle front end shaft 3, on the handle The ports of the housing 1 and the lower housing 2 of the handle are provided with an upper housing baffle 34 and a lower housing baffle 33 respectively, and the lower surface of the lower housing baffle 33 is connected to the upper surface of the upper housing baffle 34. The surfaces are abutted against each other, and the inner surface of the upper casing 1 of the knife handle, the inner surface of the lower casing 2 of the knife handle and the upper surface of the lower casing baffle plate 33 form a cavity; The first moving slot through which the first connecting rod 30 passes and moves up and down and the second moving slot through which the second connecting rod 31 can pass and move up and down, the knife handle upper housing 1 is inside and located in the first moving slot. A first rack 11 and a second rack 22 are arranged on the same side of the slot and the second moving slot, and the first rack 11 and the second rack 22 are in phase with the first gear 12 and the second gear 23 respectively. Cooperate, the first gear 12 and the second gear 23 are fixedly installed on the first connecting rod 30 and the second connecting rod 31 respectively; On the surface and close to the first moving groove, one end of the second fixing frame 20 is fixedly installed on the inner concave surface of the knife handle lower shell 2 and close to the second moving groove; the first connecting rod 30 is set through the first moving slot and the first fixed frame 8, the end of the first connecting rod 30 located at one end in the cavity is fixedly installed with the first driving bevel gear 7, and the second connecting rod 31 is set through the second moving slot and the second fixed frame 20, and the end of the second connecting rod 31 located at one end in the cavity is fixedly installed with the second driving bevel gear 19; 3 is set through the lower shell 2 of the handle, and the end of the front end shaft 3 of the handle 3 located in the cavity is provided with a passive bevel gear 4, and the passive bevel gear 4 can be connected with the first driving bevel gear 7 and the second The active bevel gear 19 is meshed, and the cutter head 32 is installed on the other end of the knife handle front end shaft 3; the partition 10 is arranged on the other end of the first fixed frame 8 and the second fixed frame 20, and the upper housing is reset Both ends of the spring 6 are respectively fixedly connected to the upper end inside the knife handle upper housing 1 and the upper surface of the partition plate 10 .

As shown in Figure 1, in this embodiment, the first rolling bearing 9 and the second rolling bearing 21 are installed on the first fixing frame 8 and the second fixing frame 20, and the first connecting rod 30 and the second connecting rod 31 are set through the first rolling bearing 9 and the second rolling bearing 21 respectively; the middle position of the lower end of the lower shell of the knife handle 2 is provided with a round hole, and the inside of the lower shell of the knife handle 2 and the inner side of the round hole are provided with a The belt seat 5 closely matched with the handle front end shaft 3, the axis of the belt seat bearing 5 coincides with the axis of the circular hole, and the knife handle front end shaft 3 passes through the belt seat bearing 5 and is arranged.

As shown in Fig. 1, Fig. 2 and Fig. 3, in this embodiment, a first locking groove 16 and a second locking groove 17 are provided on the first connecting rod 30 and on the outer side of the first gear 12. A connecting rod 30 is positioned at the end of one end outside the cavity to be provided with a first button cap 18; the outer side of the upper housing 1 of the knife handle and positioned at the bottom of the first connecting rod 30 is provided with a first return spring groove 14, the first One end of the pull rod return spring 15 is fixedly installed in the first return spring groove 14; the other end of the first pull rod return spring 15 is fixedly connected with the first pull rod 13, and the first pull rod 13 can be connected to the first draw slot 16 Or the second draw-in groove 17 matches, so that when the screwdriver is working, the first pull rod 13 is stuck in the second draw-in groove 17, so that the first driving bevel gear 7 meshes with the passive bevel gear 4; the second connecting rod 31 and located on the outside of the second gear 23 are provided with a third card slot 27 and a fourth card slot 28, and the end of the second connecting rod 31 located at one end outside the cavity is provided with a second button cap 29; The outer side of the upper casing 1 of the knife handle and the second connecting rod 31 are provided with a second return spring groove 25, and one end of the second pull rod return spring 26 is fixedly installed in the second return spring groove 25; the second pull rod The other end of the back-moving spring 26 is fixedly connected with the second pull rod 24, and the second pull rod 24 can cooperate with the third draw-in groove 27 or the fourth draw-in groove 28, so that when the screwdriver is working, the second pull rod 24 is stuck in the screwdriver. In the fourth slot 28 , the second driving bevel gear 19 is engaged with the passive bevel gear 4 .

As shown in Figure 1, in this embodiment, the front end shaft 3 of the handle of the knife is connected with the cutter head 32 through a shaft section with a regular hexagonal cross section and a blind hole, which is convenient for the installation and removal of the cutter head, and can also be connected according to the screw Different replacement cutter head 32.

The working process of the utility model is: when the screw needs to be tightened clockwise, the second pull rod 24 is clamped to the third slot 27 on the second connecting rod 31, so that the second active rod installed on the second connecting rod 31 The bevel gear 19 cannot mesh with the passive bevel gear 4; the first pull rod 13 is stuck to the second slot 17 on the first connecting rod 30, and now the first driving bevel gear 7 is meshed with the passive bevel gear 4;

Put the cutter head 32 on the screw, fix the lower housing 2 of the knife handle and press the upper housing 1 of the knife handle, the first rack 11 installed in the upper housing 1 of the knife handle moves downward, and at the same time drives the rack installed in the first When the first gear 12 on the connecting rod 30 rotates, the first driving bevel gear 7 installed on the first connecting rod 30 rotates. Since the first driving bevel gear 7 meshes with the driven bevel gear 4, it is installed on the front end shaft of the handle. When the passive bevel gear 4 on the 3 rotates clockwise, the cutter head 32 installed on one end of the shaft 3 at the front end of the handle rotates clockwise for tightening the screw;

When the screws need to be disassembled, the first pull rod 13 is stuck to the first slot 16 on the first connecting rod 30, and now the first driving bevel gear 7 cannot be meshed with the passive bevel gear 4; the second pull rod 24 is stuck to the fourth slot 28 on the second connecting rod 31, so that the second driving bevel gear 19 mounted on the second connecting rod 31 is engaged with the driven bevel gear 4;

Fix the lower case 2 of the knife handle and press the upper case 1 of the knife handle, the second rack 22 installed in the upper case 1 of the knife handle moves downward, and at the same time drives the second gear 23 installed on the second connecting rod 31 Rotate, then the second driving bevel gear 19 that is installed on the second connecting rod 31 rotates, because the second driving bevel gear 19 meshes with the passive bevel gear 4, so the passive bevel gear 4 that is installed on the handle front end shaft 3 counterclockwise Rotate, then the cutter head 32 that is installed on the front end shaft 3 of the handle of a knife rotates counterclockwise, and is used for dismounting screw;

Press the upper shell 1 of the knife handle once and make the knife head 32 tighten or loosen the screw, then remove the screwdriver so that the knife head 32 does not contact the screw, at this time loosen the upper shell 1 of the knife handle, and the return spring 6 of the upper shell Reset the upper shell 1 of the handle of a knife, and then press the upper shell 1 of the handle of a knife again if the screw needs to be tightened or unscrewed again.

The above are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any simple modifications, changes and equivalent structural changes made to the above embodiments according to the technical essence of the present utility model still belong to Within the scope of protection of the technical solution of the utility model.

Claims (6)

1. a push type screwdriver, it is characterized in that: comprise the handle of a knife upper shell (1) of indent, handle of a knife lower house (2) and the handle of a knife front end axle (3) of indent, the port of described handle of a knife upper shell (1) and handle of a knife lower house (2) is respectively arranged with upper shell baffle plate (34) and lower house baffle plate (33), the upper surface of the lower surface of described lower house baffle plate (33) and upper shell baffle plate (34) connects, and described handle of a knife upper shell (1) inner surface, handle of a knife lower house (2) inner surface and lower house baffle plate (33) upper surface surround cavity, on described handle of a knife upper shell (1), offer first shifting chute that can allow head rod (30) pass and to move up and down and second shifting chute that can allow the second connecting rod (31) pass and move up and down, described handle of a knife upper shell (1) the same side inner and that be positioned at described the first shifting chute and described the second shifting chute arranges respectively the first tooth bar (11) and the second tooth bar (22), described the first tooth bar (11) and the second tooth bar (22) match with the first gear (12) and the second gear (23) respectively, described the first gear (12) and the second gear (23) are fixedly mounted on respectively on head rod (30) and the second connecting rod (31), the first fixed mount (8) one end is fixedly mounted on the concave surface of described handle of a knife lower house (2) and near described the first shifting chute place, and the second fixed mount (20) one end is fixedly mounted on the concave surface of described handle of a knife lower house (2) and near described the second shifting chute place, described head rod (30) arranges through described the first shifting chute and the first fixed mount (8), the end that described head rod (30) is positioned at described cavity one end is installed with the first active conical gear (7), described the second connecting rod (31) arranges through described the second shifting chute and the second fixed mount (20), and the end that described the second connecting rod (31) is positioned at described cavity one end is installed with the second active conical gear (19), described handle of a knife front end axle (3) arranges through handle of a knife lower house (2), one end that described handle of a knife front end axle (3) is positioned at described cavity is provided with passive conical gear (4), described passive conical gear (4) can be meshed with the first active conical gear (7) and the second active conical gear (19), and cutter head (32) is arranged on the other end of described handle of a knife front end axle (3), dividing plate (10) is arranged on the other end of described the first fixed mount (8) and the second fixed mount (20), and the two ends of upper shell back-moving spring (6) are fixedly connected on respectively the inner upper end of described handle of a knife upper shell (1) and the upper surface of described dividing plate (10).

2. according to a kind of push type screwdriver claimed in claim 1, it is characterized in that: the first rolling bearing (9) and the second rolling bearing (21) are all installed on described the first fixed mount (8) and the second fixed mount (20), and described head rod (30) and the second connecting rod (31) arrange through the first rolling bearing (9) and the second rolling bearing (21) respectively.

3. according to a kind of push type screwdriver claimed in claim 1, it is characterized in that: the centre position, lower end of described handle of a knife lower house (2) offers circular hole, described handle of a knife lower house (2) is inner and be positioned at circular hole inner side and be provided with and the close-fitting rolling bearing units of described handle of a knife front end axle (3) (5), the axis of described rolling bearing units (5) and the dead in line of circular hole, described handle of a knife front end axle (3) arranges through rolling bearing units (5).

4. according to a kind of push type screwdriver described in claim 1 or 2, it is characterized in that: described head rod (30) outside upper and that be positioned at the first gear (12) offers the first draw-in groove (16) and the second draw-in groove (17), and described head rod (30) is positioned at described cavity and the first button cap (18) is set the end of one end outward; Described handle of a knife upper shell (1) outside and the below that is positioned at head rod (30) offer the first back-moving spring groove (14), and first pull bar back-moving spring (15) one end is fixedly mounted in described the first back-moving spring groove (14); The other end of described the first pull bar back-moving spring (15) is fixedly connected with the first pull bar (13), and described the first pull bar (13) can match with the first draw-in groove (16) or the second draw-in groove (17).

5. according to a kind of push type screwdriver described in claim 1 or 2, it is characterized in that: described the second connecting rod (31) outside upper and that be positioned at the second gear (23) offers the 3rd draw-in groove (27) and the 4th draw-in groove (28), and described the second connecting rod (31) is positioned at described cavity and the second button cap (29) is set the end of one end outward; Described handle of a knife upper shell (1) outside and the below that is positioned at the second connecting rod (31) offer the second back-moving spring groove (25), and second pull bar back-moving spring (26) one end is fixedly mounted in described the second back-moving spring groove (25); The other end of described the second pull bar back-moving spring (26) is fixedly connected with the second pull bar (24), and described the second pull bar (24) can match with the 3rd draw-in groove (27) or the 4th draw-in groove (28).

6. according to a kind of push type screwdriver claimed in claim 1, it is characterized in that: described handle of a knife front end axle (3) is that orthohexagonal shaft part and blind hole are connected with cutter head (32) by cross section.

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