CN213106585U - Telescopic multifunctional cross screwdriver - Google Patents

Abstract

The utility model relates to a hand tool field, concretely relates to scalable multi-functional cross screwdriver. Comprises a screwdriver handle (1), a screwdriver rod (2) and a screwdriver rod outer sleeve set (3). When in use, according to the size of the cross screw, the reset button (306) is pressed or the push-down rod (311) is pushed downwards. After the reset button (306) is pressed, the screwdriver handle (1) is retracted by the corresponding screwdriver rod sleeve. The lower push rod (311) is pushed downwards, the corresponding cutter bar outer sleeve can be popped out, so that the size of the screwdriver head can be adjusted, and cross screws with different sizes and models can be screwed. When not in use, the reset button (306) can be pressed completely, or the push-down rod (311) can be pushed down completely. The invention has simple structure, convenient operation, easy carrying and low manufacturing cost, and is suitable for cross screws with different models.

Description

Telescopic multifunctional cross screwdriver

Technical Field

The utility model relates to a hand tool field, concretely relates to scalable multi-functional cross screwdriver.

Background

In the prior art, when various parts are assembled, processed, maintained and overhauled, screws with different sizes and models are used, so that the screw drivers with different models need to be continuously replaced according to the sizes and the models of the screws. At present, the handle, the cutter bar and the cutter head of the common multifunctional screwdriver in the market are assembled separately. According to the screw of different size models, equipped with the screwdriver bit of a large amount of different models, select corresponding tool bit to assemble according to the model of screw during the use. The handle, the screwdriver rod and the screwdriver head of the multifunctional screwdriver are generally placed in a plastic suitcase for carrying. However, the multifunctional screwdriver has many parts and is troublesome to carry, and the screwdriver bits are easy to lose due to small volume, large quantity and different sizes. Therefore, the development of the screwdriver which is convenient to carry and use, has a simple structure and can adapt to screws with different sizes and models has good market prospect.

Disclosure of Invention

In order to effectively solve the not enough of traditional multi-functional screwdriver suit, the utility model provides a scalable multi-functional screwdriver, this scalable multi-functional cross screwdriver has that the volume is moderate, simple structure, conveniently carry the characteristics of use.

In order to achieve the above purpose, the utility model adopts the technical scheme that: the utility model provides a scalable multi-functional cross screwdriver which characterized in that: comprises a screwdriver handle, a screwdriver rod and a screwdriver rod outer sleeve set; the screwdriver rod is arranged in the screwdriver handle; the screwdriver rod outer sleeve is arranged between the screwdriver handle and the screwdriver rod.

The handle of the screwdriver comprises a handle front part, a handle middle part, a handle rear part and a fixing ring; the front part of the handle and the middle part of the handle are connected together through threads; the rear part of the handle is connected with the middle part of the handle in a joggle mode; the fixed ring is installed at the joint of the middle part of the handle and the rear part of the handle through threads.

The screwdriver rod comprises a screwdriver bit, a screwdriver rod and a tenon; the screwdriver head, the screwdriver rod and the tenon are integrally processed; the cutter head is arranged at one end of the cutter rod; the tenon is arranged at the other end of the cutter bar.

The cutter bar outer sleeve group comprises four cutter bar outer sleeves; each group of cutter bar outer sleeves comprise a cutter bar main body, a lower push rod, a large spring, a small spring, a reset button, a spring upper clamping groove, a spring lower clamping groove and a spring pressing plate; the cutter bar main body, the lower push rod, the upper spring clamping groove, the lower spring clamping groove and the spring pressing plate are integrally processed; the small spring is arranged in an upper spring clamping groove and a lower spring clamping groove of the cutter bar main body; the reset button is arranged at one end of the small spring; the big spring is arranged below the spring pressing plate of the cutter bar main body.

The utility model discloses an above-mentioned design obtains a scalable multi-functional cross screwdriver, and this scalable multi-functional screwdriver structure principle is simple, and convenient operation carries easily, and low in manufacturing cost is applicable to the cross screw of multiple different models, and application prospect is considerable.

Drawings

Fig. 1 is a schematic view of the overall structure of the utility model;

FIG. 2 is a schematic view of a screwdriver handle configuration;

FIG. 3 is a longitudinal cross-sectional view of a screwdriver handle;

FIG. 4 is a transverse cross-sectional view of the screwdriver handle;

FIG. 5 is a schematic view of the screwdriver blade;

FIG. 6 is a schematic view of the assembly of four tool bar covers;

FIG. 7 is a schematic view of a single tool holder sleeve configuration;

FIG. 8 is a schematic view of the connection of the screwdriver handle, the screwdriver shank and the shank sleeve;

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the functions of the invention easy to understand, the invention is further described below with reference to specific implementation examples.

As shown in fig. 1, the telescopic multifunctional cross screwdriver is characterized in that: comprises a screwdriver handle (1), a screwdriver rod (2) and a screwdriver rod outer sleeve set (3). The screwdriver rod (2) is arranged in the screwdriver handle; the screwdriver rod outer sleeve group (3) is arranged between the screwdriver handle (1) and the screwdriver rod (2).

As shown in fig. 2, 3 and 4, the screwdriver handle (1) comprises a handle front part (101), a handle middle part (102), a handle rear part (103) and a fixing ring (104); the front part (101) of the handle is a long cylinder, and one end of the long cylinder is provided with a thread; the middle part of the handle is a funnel-shaped cylinder, 4 long grooves penetrating through the cylinder wall are processed from one end with small diameter, and mortises and threads are respectively processed at the two ends of the cylinder; the rear part (103) of the handle is a long cylinder with one closed end, the inner wall of the cylinder is respectively provided with 4 large sliding grooves and 4 small sliding grooves, the bottoms of the 4 large sliding grooves are respectively provided with 1 circular through hole, and the outer wall of the cylinder at the non-closed end of the cylinder is provided with a convex thread; the fixed ring (104) is a ring, and the inner wall of the ring is provided with threads; the front part (101) of the handle is arranged on the middle part (102) of the handle through threads; the rear part (103) of the handle is arranged in the middle part (102) of the handle in a joggle joint mode; the fixed ring (104) is arranged at the joint of the middle part (102) of the handle and the rear part (103) of the handle.

As shown in fig. 5, the screwdriver rod (2) comprises a screwdriver bit (201), a screwdriver rod (202) and a tenon (203). The screwdriver head (201) is a cross screwdriver head; the cutter bar (202) is a slender cylinder; the tenon (203) is a cuboid; the screwdriver head (201), the screwdriver rod (202) and the tenon (203) are integrally processed; the screwdriver head (201) is arranged at one end of the screwdriver rod (202); the tenon (203) is arranged at the other end of the cutter bar (202).

As shown in fig. 6 and 7, the holder sheath set (3) comprises 4 groups of holder sheaths; each group of cutter bar outer sleeves comprises a cutter bar main body (301), a lower push rod (311), a large spring (305), a small spring (307), a reset button (306), an upper spring clamping groove (309), a lower spring clamping groove (310) and a spring pressing plate (308); the cutter bar bodies (301) (302) (303) (304) are all cylinders, one end of each cylinder is provided with cross screwdriver teeth, and 3/4, 2/4, 1/4 and 0 of the wall of each cylinder are cut off at the other end of each cylinder; the lower push rod (311) is a cuboid; the large spring (305) is a large spring with a square sheet at one end; the small spring (307) is a small spring with a square sheet at one end; the cutter bar main body (301), the lower push rod (311), the upper spring clamping groove (309), the lower spring clamping groove (310) and the spring pressing plate (308) are integrally processed; the lower push rod (311) is arranged in the middle of the cutter bar main body (301); the upper spring clamping groove (309) and the lower spring clamping groove (310) are arranged at one end, not provided with cutter teeth, of the cutter bar main body (301) and are distributed up and down; the spring pressing plate (308) is arranged at one end, not provided with cutter teeth, of the cutter bar main body (301) and on one side of the spring, which is provided with a clamping groove (309); the large spring (305) is placed below the spring pressure plate (308); the small spring (307) is arranged between the upper spring clamping groove (309) and the lower spring clamping groove (310), and one end of the square sheet of the small spring (307) faces downwards; the reset button (306) is arranged at one end of a small spring (307) which is not a square sheet.

As shown in fig. 8, the screwdriver rod (2) is joggled with the handle rear part (103) of the screwdriver handle (1) through the tenon (203); the screwdriver rod outer sleeve set (3) is wedged with an inner wall sliding groove of the handle rear part (103) of the screwdriver handle (1) through an upper spring clamping groove (309), a lower spring clamping groove (310) and a spring pressing plate (308); the lower push rod (311) of the cutter bar outer sleeve group (3) is arranged in a through long groove in the middle (102) of the handle of the screwdriver handle (1); the reset button (306) of the screwdriver rod outer sleeve group (3) penetrates through a circular through hole in the rear portion (103) of the screwdriver handle (1).

When in use, according to the size of the cross screw, the reset button (306) is pressed or the push-down rod (311) is pushed downwards. After the reset button (306) is pressed down, the small spring (307) contracts, the large spring (305) pushes the spring pressing plate (308) on the screwdriver rod main body (301) to slide upwards along the inner wall sliding groove of the handle rear portion (103) until the lower push rod (311) reaches the tail end of the handle middle portion (102) penetrating through the long groove, sliding of the screwdriver rod outer sleeve is stopped, and therefore the corresponding screwdriver rod outer sleeve can be retracted into the screwdriver handle (1). Push down pole (311) downwards, holding down plate (308), spring upper and lower draw-in groove (309) (310) on the cutter arbor overcoat group (3) will be along the inner wall spout of handle rear portion (103) lapse, pop out from the circular through-hole of handle rear portion (103) until reset button (306), the slip of cutter arbor overcoat stops, just so can pop out corresponding cutter arbor overcoat, so just can adjust the size of screwdriver bit, twist the cross screw of not equidimension model. When not in use, the reset button (306) can be pressed completely, or the push-down rod (311) can be pushed down completely.

Claims (4)

1. The utility model provides a scalable multi-functional cross screwdriver which characterized in that: comprises a screwdriver handle, a screwdriver rod and a screwdriver rod outer sleeve set; the screwdriver rod is arranged in the screwdriver handle; the screwdriver rod outer sleeve is arranged between the screwdriver handle and the screwdriver rod.

2. The retractable multifunctional cross screwdriver as recited in claim 1, wherein: the handle of the screwdriver comprises a handle front part, a handle middle part, a handle rear part and a fixing ring; the front part of the handle is a long cylinder, and one end of the handle is provided with a thread; the middle part of the handle is a funnel-shaped cylinder, 4 long grooves penetrating through the wall of the cylinder are processed from one end with small diameter, and mortises and convex threads are respectively processed at the two ends of the cylinder; the rear part of the handle is a long cylinder with one closed end, the inner wall of the cylinder is respectively provided with 4 large sliding grooves and 4 small sliding grooves, the bottoms of the 4 large sliding grooves are respectively provided with 1 round through hole, and the outer wall of the cylinder at the non-closed end of the cylinder is provided with a convex thread and a tenon; the fixed ring is a circular ring, and the inner wall of the circular ring is provided with threads; the front part of the handle is arranged on the middle part of the handle through threads; the rear part of the handle is arranged in the middle of the handle in a joggling way; the fixed ring is arranged at the joint of the middle part of the handle and the rear part of the handle.

3. The retractable multifunctional cross screwdriver as recited in claim 1, wherein: the screwdriver rod comprises a screwdriver bit, a screwdriver rod and a tenon; the screwdriver head is a cross screwdriver head; the cutter bar is a slender cylinder; the tenon is a cuboid; the screwdriver head, the screwdriver rod and the tenon are integrally processed; the screwdriver head is arranged at one end of the screwdriver rod; the tenon is arranged at the other end of the cutter bar.

4. The retractable multifunctional cross screwdriver as recited in claim 1, wherein: the cutter bar outer sleeve group comprises 4 groups of cutter bar outer sleeves; each group of cutter bar outer sleeves comprises a cutter bar main body, a lower push rod, a large spring, a small spring, a reset button, a spring upper clamping groove, a spring lower clamping groove and a spring pressing plate;the main bodies of the cutter bars are cylinders, one end of each cylinder is provided with a cross screwdriver tooth, and the other end of each cylinder is respectively cut off the wall of each cylinder

0; the lower push rod is a cuboid; the large spring is a large spring with a square sheet at one end; the small spring is a small spring with a square sheet at one end; the cutter bar main body, the lower push rod, the upper spring clamping groove, the lower spring clamping groove and the spring pressing plate are integrally processed; the lower push rod is arranged in the middle of the cutter bar main body; the upper spring clamping groove and the lower spring clamping groove are arranged at one end, not provided with cutter teeth, of the cutter bar main body and are distributed up and down; the spring pressing plate is arranged at one end of the cutter bar main body, which is not the cutter teeth, and on one side of the clamping groove on the spring; the large spring is placed below the spring pressing plate; the small spring is arranged between the upper spring clamping groove and the lower spring clamping groove, and one end of the square sheet of the small spring faces downwards; the reset button is arranged at one end of the small spring non-square sheet.

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