CN204893795U - Spacing screwdriver that cup joints of spring - Google Patents

Abstract

The utility model discloses a spacing screwdriver that cup joints of spring, including handle and cutter body, the handle center is provided with hollow cavity for place the cutter body, spacing knob threaded connection is arranged in injecing the cutter body that hollow cavity was placed on the handle, the cutter body includes arbor sets takeover, cutter arbor and tool bit from top to bottom, and arbor sets takeover center is provided with the socket pipe inner chamber for cup joint cutter arbor and tool bit, cutter body socket pipe's lower extreme outside symmetry is provided with two spacing lugs, on the lower bottom surface of handle, hollow cavity port boss both sides fixedly connected with torque spring, torque spring leans on one side fixedly connected with limiting blocking piece of hollow cavity boss, torque spring and the limiting blocking piece combined action spacing lug on the cutter body. The utility model discloses a cup jointing between the cutter body and having practiced thrift the space, conveniently carry, the cutter body of multiple different tool bits can be placed to the while, has strengthened the service function of screwdriver.

Description

A kind of spring retainer socket screwdriver

Technical field

The utility model relates to a kind of screwdriver, particularly relates to a kind of spring retainer socket screwdriver.

Background technology

Screwdriver is the instrument in daily life, for parbuckle screw.Current screwdriver mainly contains two kinds of cutter heads, and one is in-line cutter head, and one is cross cutter head, according to no screw or screw upper cap nut structure difference, chooses the screwdriver with correspondingly-shaped cutter head.Commonly handle of a knife and a knife bar fixed connection structure or different cutter head knife bar are separately as required by being socketed on handle of a knife for current screwdriver, and the former scope of application is limited, and the latter needs larger storage space, carry inconvenient not.

Summary of the invention

In order to overcome deficiency of the prior art, the utility model provides a kind of structure simple spring retainer socket screwdriver, and this screwdriver takes up room little, and multiple cutter head switches use, easy to carry.

For solving above-mentioned key technical problem, the utility model by the following technical solutions:

A kind of spring retainer socket screwdriver, comprise handle and cutter hub, the center of described handle is provided with hollow cavity, for placing cutter hub, the structure of hollow cavity and the structure of cutter hub match, and the upper end of hollow cavity is provided with cavity internal thread, with cavity internal thread supporting be knob external screw thread on spacing knob, described spacing knob thread is connected on handle, for limiting the cutter hub placed in hollow cavity; Described cutter hub comprises knife bar socket pipe, knife bar and cutter head from top to bottom, knife bar socket pipe, knife bar and cutter head are structure as a whole, described cutter hub and cutter hub socket pipe are cylindrical structural, described knife bar socket pipe center is provided with socket pipe inner chamber, for being socketed knife bar and cutter head, be symmetrically arranged with two pieces of spacing block sets at the lower end outside of cutter hub socket pipe, the boss structure of spacing block set structure and hollow cavity matches; On the bottom surface of described handle, both sides, hollow cavity port boss position are fixedly connected with torque spring, described torque spring is fixedly connected with spacing catch, torque spring and the spacing block set of spacing catch acting in conjunction on cutter hub by the side of hollow cavity boss.

As preferably, the outer surface of described handle is provided with external screw thread, for the cutter hub protective sleeve that is threaded.

As preferably, the shape of described cutter head can be in-line cutter head not of uniform size or cross cutter head.

Compared with prior art, the beneficial effects of the utility model: cutter hub of the present utility model can be socketed straight line each other and form cutter hub assembly, relative sliding can not occur, and cutter hub assembly are arranged in handle of a knife after socket between cutter hub, save space, be convenient for carrying; And the cutter hub of multiple different cutter head can be placed simultaneously, enhance the using function of screwdriver; Under the acting in conjunction of torque spring and spacing catch, the cutter hub in handle can not drop.

Accompanying drawing explanation

Fig. 1 is the structural representation of a kind of spring retainer socket screwdriver.

Fig. 2 is the structural representation of cutter hub.

Fig. 3 is the structural representation after cutter hub is socketed mutually.

Fig. 4 is the structural representation in handle, at its lower end portion.

1. handles, 2. hollow cavity in figure, 201. cavity internal threads, 3. spacing knob, 301. knob external screw thread, 4. cutter hubs, 41. knife bars, 42. cutter heads, 43. knife bar socket pipes, 430. socket pipe inner chambers, 431. spacing block sets, 5. torque spring, 6. spacing catch.

Detailed description of the invention

Below in conjunction with accompanying drawing, the utility model is elaborated, to make advantage of the present utility model and feature can be easier to be readily appreciated by one skilled in the art, thus makes clearly clear and definite defining to the protection domain of the utility model patent.

With reference to Fig. 1 composition graphs 2, Fig. 3 and Fig. 4, a kind of spring retainer socket screwdriver, comprise handle 1 and cutter hub 4, the center of described handle 1 is provided with hollow cavity 2, for placing cutter hub 4, the structure of hollow cavity 2 and the structure of cutter hub 4 match, ensure that cutter hub 4 can not slide in rotation screw process, cavity internal thread 201 is provided with inside the upper end of hollow cavity 2, with cavity internal thread 201 supporting be knob external screw thread 301 on spacing knob 3, described spacing revolve 3 for limit in hollow cavity 2 place cutter hub 4, impel between the cutter hub 4 in hollow cavity 2 and be closely socketed, prevent in loading process, occur between cutter hub to loosen.The structure of described cutter hub 4 as shown in Figure 2, comprise knife bar socket pipe 43, knife bar 41 and cutter head 42 from top to bottom, knife bar socket pipe 43, knife bar 41 and cutter head 42 are structure as a whole, described cutter hub 41 and cutter hub socket pipe 43 are cylindrical structural, described knife bar socket pipe 43 center is provided with socket pipe inner chamber 430, for placing knife bar 41 and cutter head 42, by arranging socket pipe inner chamber 430, take length space when cutter hub can be avoided mutually to superpose, realize equal length space cutter hub as much as possible; Two pieces of spacing block sets 431 are symmetrically arranged with at the lower end outside of cutter hub socket pipe, spacing block set 431 is embedded in the raised position of hollow cavity 2, the structure of spacing block set 431 and the boss structure of hollow cavity 2 match, and cutter hub 4 can not be slided when the object such as rotary screw, screw; Described cutter head 42 can be in-line cutter head or cross cutter head, and shape and the size of cutter head 42 are arranged according to actual conditions, meet environment for use as much as possible.As shown in Figure 3, knife bar 41 and cutter head 42 are incorporated in knife bar socket pipe 43 structure after cutter hub 4 is socketed completely.As shown in Figure 2, on handle 1 lower surface, hollow cavity 2 port part both sides are respectively fixedly connected with torque spring 5 to the lower surface structure of handle 1, and torque spring 5 is fixedly connected with spacing catch 6 by the side of hollow cavity 2; When spring 5 in the raw time, spacing catch blocks the spacing block set 431 on knife bar socket pipe 43, prevents cutter hub 4 from dropping.In order to prevent driver bit from sustaining damage, screw driver handle arranges external screw thread, for the cutter hub protective sleeve that is threaded.

Cutter hub is contained in the hollow cavity of handle, is mutually socketed between cutter hub, and the knife bar of cutter hub and cutter head are exposed at outside handle bottom, and on cutter hub, the spacing block set of knife bar socket pipe both sides is blocked by the spacing catch on torque spring bottom, prevents cutter hub bottom from dropping; Spacing knob is close-coupled on handle by the threaded function between knob external screw thread and hollow cavity internal thread, impels between cutter hub and be closely socketed after spacing knob screws.When driver bit changed by needs, down extracted by cutter hub bottom, be socketed on cutter hub topmost, by repeating This move, can be implemented in handle cutter hub is bottom required cutter hub.

The above; be only the specific implementation method of utility model; but protection domain of the present utility model is not limited thereto; any those of ordinary skill in the art are in the technical scope disclosed by the utility model; the change can expected without creative work or replacement, all should cover within protection domain of the present utility model.Therefore, the protection domain that protection domain of the present utility model should limit with claims is as the criterion.

Claims (3)

1. a spring retainer socket screwdriver, comprise handle (1) and cutter hub (4), it is characterized in that: the center of described handle (1) is provided with hollow cavity (2), for placing cutter hub (4), the structure of hollow cavity (2) and the structure of cutter hub (4) match, the upper end of hollow cavity (2) is provided with cavity internal thread (201), with cavity internal thread (201) supporting be knob external screw thread (301) on spacing knob (3), described spacing knob (3) is threaded on handle (1), for limiting the cutter hub (4) placed in hollow cavity (2), described cutter hub (4) comprises knife bar socket pipe (43) from top to bottom, knife bar (41) and cutter head (42), knife bar socket pipe (43), knife bar (41) and cutter head (42) are structure as a whole, described cutter hub (41) and cutter hub socket pipe (43) are cylindrical structural, described knife bar socket pipe (43) center is provided with socket pipe inner chamber (430), for being socketed knife bar (41) and cutter head (42), two pieces of spacing block sets (431) are symmetrically arranged with at the lower end outside of cutter hub socket pipe (43), the boss structure of spacing block set (431) structure and hollow cavity (2) matches, on the bottom surface of described handle (1), hollow cavity (2) lower port boss both sides are fixedly connected with torque spring (5), described torque spring (5) is fixedly connected with spacing catch (6) by the side of hollow cavity (2) boss, torque spring (5) and the spacing block set of spacing catch (6) acting in conjunction on cutter hub (431).

2. a kind of spring retainer socket screwdriver according to claim 1, is characterized in that: the outer surface of described handle (1) is provided with external screw thread, for the cutter hub protective sleeve that is threaded.

3. a kind of spring retainer socket screwdriver according to claim 1, is characterized in that: the shape of described cutter head (42) is in-line cutter head not of uniform size or cross cutter head.