Screwdriver with telescopic screwdriver head

Abstract

The utility model relates to the technical field of screwdrivers, and discloses a screwdriver with a telescopic screwdriver head, which comprises a grip, a movable groove is arranged at the top of the grip, a rotating groove is arranged in the middle of the grip, a screw rod is rotatably connected to the inner wall of the rotating groove, a stress rod is fixedly assembled at the top end of the screw rod, and the stress rod is fixedly assembled at the top end of the screw rod. The outer wall of the lead screw is in threaded connection with a lifting ring, and a sleeve is fixedly assembled at the bottom of the grip. Through the arrangement of the grip, the movable groove, the rotating groove, the lifting ring, the lead screw and the sleeve structure, in the use process of the screwdriver, a user can push a stress rod to rotate through a single finger, so that the lead screw rotates to drive the lifting ring to ascend and descend, the distance between the screwdriver head and the grip is adjusted, and then the user can conveniently screw screws with different depths; and a user does not need to replace screwdrivers with different models and lengths to tighten the screw, so that the use range of the screwdriver is widened.

Description

TECHNICAL FIELD

[0001] The utility model relates to screwdriver technical field, concretely is a screwdriver with telescopic screwdriver head. BACKGROUND

[0002] When fixing the plate and the part, need to connect the screw with the hole position, so that the plate and the part can be limited and fixed, and the screw is usually driven into the screwdriver.

[0003] The existing screwdriver can screw the screw during use, but the existing screwdriver does not have the mechanism for adjusting the position of the head, so the user needs to replace the screwdriver of different models and lengths to complete the screw tightening operation when tightening the screw of different depths, thereby reducing the use range and practicality of the existing screwdriver, and therefore we provide a screwdriver with telescopic screwdriver head. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies of the prior art, the utility model provides a screwdriver with telescopic screwdriver head, which has the advantages of telescopic screwdriver head, wide use range, replaceable screwdriver head and strong practicality, and solves the problems raised in the above background technology.

[0005] The utility model provides following technical scheme: a screwdriver with telescopic screwdriver head, including handle, the top of handle is equipped with movable slot, the middle part of handle is equipped with rotary groove, the inner wall of rotary groove is connected with the screw rod of rotation, the top of screw rod is fixedly installed with stress rod, the outer wall of screw rod is connected with the lifting ring of screw, the bottom of handle is fixedly installed with sleeve, the inner wall of sleeve is fixedly installed with straight rod, the outer wall of straight rod is sleeved with spring, the bottom of lifting ring is fixedly installed with connecting rod, the middle part of connecting rod is equipped with round groove and insertion slot respectively, the inner wall of insertion slot is inserted with insertion rod, the bottom of insertion rod is fixedly installed with body, the outer wall of insertion rod is equipped with through hole, the inner wall of through hole is inserted with fastening bolt, the outer wall of fastening bolt is connected with the nut of screw.

[0006] As a preferred technical scheme of the utility model: the outer wall of screw rod is rotatably connected with the inner wall of rotary groove, and the inner wall of round groove is slidably connected with the outer wall of screw rod.

[0007] As a preferred technical scheme of the utility model: the outer wall of fastening bolt and nut is closely attached to the outer wall of connecting rod, and the body is fixedly connected with the connecting rod through the insertion rod.

[0008] As a preferred technical scheme of the utility model: the number of straight rods is two, and the two straight rods are symmetrically distributed along the inner wall of sleeve.

[0009] As a preferred technical scheme of the utility model: the bottom of the stress rod is rotationally connected with the bottom of the inner wall of the movable groove, and the stress rod is prepared by galvanized iron metal.

[0010] As a preferred technical scheme of the utility model: the outer wall of the lifting ring is slidably connected with the inner wall of the sleeve, and the outer wall of the connecting rod is slidably connected with the inner wall of the sleeve.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1、The screwdriver with telescopic screwdriver head, through the setting of handle, movable groove, rotating groove, lifting ring, screw rod, sleeve structure, make the screwdriver in use process, the user can push the stress rod rotation through single finger, thus make the screw rod rotation drive the lifting ring to lift, adjust the distance between the bit and the handle, and then facilitate the user to twist the screw of different depth, without the user replacing different model and length screwdriver to tighten the screw, improve the use range of the screwdriver.

[0013] 2、The screwdriver with telescopic screwdriver head, through the setting of fastening bolt, nut, jack, through hole structure, make the screwdriver after long time use, when the bit is worn too much, the user can directly remove the nut and fastening bolt mode to unload the bit, thus realize the effect of replacing the bit, without the user discarding the whole screwdriver, and then improve the practicality of the screwdriver. ACCURACY

[0014] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0015] Figure 2 It is a side cut structure schematic view of the utility model;

[0016] Figure 3 It is a stress rod structure schematic view of the utility model;

[0017] Figure 4 It is a stress rod structure schematic view of the utility model Figure 3 It is an enlarged structure schematic view of A in the utility model;

[0018] Figure 5 It is a rotating groove structure schematic view of the utility model.

[0019] In the drawing: 1, handle; 2, movable groove; 3, stress rod; 4, screw rod; 5, sleeve; 6, connecting rod; 7, body; 8, straight rod; 9, spring; 10, lifting ring; 11, fastening bolt; 12, nut; 13, circular groove; 14, jack; 15, plug rod; 16, through hole; 17, rotating groove. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0021] Please refer to Figures 1-5 A screwdriver with a telescopic screwdriver head, comprising a handle 1, the top of the handle 1 is provided with a movable groove 2, the middle of the handle 1 is provided with a rotating groove 17, the inner wall of the rotating groove 17 is rotatably connected with a lead screw 4, the top end of the lead screw 4 is fixedly connected with a force rod 3, the outer wall of the lead screw 4 is threadedly connected with a lifting ring 10, the bottom of the handle 1 is fixedly connected with a sleeve 5, the inner wall of the sleeve 5 is fixedly connected with a straight rod 8, the outer wall of the straight rod 8 is sleeved with a spring 9, the bottom of the lifting ring 10 is fixedly connected with a connecting rod 6, the middle of the connecting rod 6 is respectively provided with a circular groove 13 and a insertion groove 14, the inner wall of the insertion groove 14 is inserted with an insertion rod 15, the bottom end of the insertion rod 15 is fixedly connected with a body 7, the outer wall of the insertion rod 15 is provided with a through hole 16, the inner wall of the through hole 16 is inserted with a fastening bolt 11, the outer wall of the fastening bolt 11 is threadedly connected with a nut 12.

[0022] In the above structure, the handle 1, the movable groove 2, the force rod 3, the lead screw 4, the sleeve 5, the connecting rod 6, the body 7, the straight rod 8, the spring 9 and the lifting ring 10 are arranged, so that the user can rotate the force rod 3 along the inner wall of the movable groove 2 by a single finger during use, so that the lead screw 4 rotates and the lifting ring 10 lifts, so as to facilitate the user to adjust the length of the connecting rod 6 extending out of the sleeve 5, and further realize the effect of adjusting the distance between the body 7 and the handle 1, so as to facilitate the user to rotate the screw of different depths.

[0023] In a preferred embodiment, the outer wall of the lead screw 4 is rotatably connected with the inner wall of the rotating groove 17, and the inner wall of the circular groove 13 is slidably connected with the outer wall of the lead screw 4.

[0024] In the above structure, the rotating groove 17 is arranged, so that the rotation of the lead screw 4 is limited, thereby avoiding the situation that the lead screw 4 deviates when the user rotates the force rod 3 by a single finger, improving the stability of the lead screw 4, avoiding affecting the subsequent use of the screwdriver, and the circular groove 13 can ensure that the connecting rod 6 can lift along the outer wall of the lead screw 4 during rotation, thereby ensuring the stability of the body 7 during lifting.

[0025] In a preferred embodiment, the outer walls of the fastening bolt 11 and the nut 12 are tightly attached to the outer wall of the connecting rod 6, and the body 7 is fixedly connected with the connecting rod 6 through the insertion rod 15.

[0026] In the structure, the body 7 will be abraded due to friction during use of the screwdriver, at which time the user can replace the body 7 by disassembling and assembling the fastening bolt 11 and the nut 12, thereby facilitating maintenance of the screwdriver without discarding the entire screwdriver, and thus improving the practicability of the screwdriver.

[0027] In a preferred embodiment, the number of straight rods 8 is two, and the two straight rods 8 are symmetrically distributed along the inner wall of the sleeve 5.

[0028] In the structure, the two straight rods 8 limit the rotation of the lifting ring 10 during rotation of the lead screw 4, thereby ensuring that the lifting ring 10 can only move up and down to facilitate the user to adjust the distance between the body 7 and the handle 1, and the spring 9 can ensure that the lifting ring 10 can be reset when the user pushes the force rod 3 in the opposite direction, thereby ensuring that the subsequent use of the screwdriver is not affected.

[0029] In a preferred embodiment, the bottom of the force rod 3 is rotationally connected to the bottom of the inner wall of the movable groove 2, and the force rod 3 is made of galvanized iron metal.

[0030] In the structure, the galvanized iron metal has hardness and wear resistance, which can effectively reduce the wear degree of the force rod 3 during operation, thereby prolonging the service life of the force rod 3, and the galvanized iron metal also has the characteristics of low cost, thereby reducing the maintenance and production cost of the screwdriver.

[0031] In a preferred embodiment, the outer wall of the lifting ring 10 is slidingly connected to the inner wall of the sleeve 5, and the outer wall of the connecting rod 6 is slidingly connected to the inner wall of the sleeve 5.

[0032] In the structure, the sleeve 5 further limits the lifting of the connecting rod 6, thereby avoiding the inclination or even the positional deviation of the connecting rod 6 during lifting, and further improving the stability of the connecting rod 6 during lifting.

[0033] Working principle: first, the user in the assembly of the screwdriver, can be directly inserted into the slot 15 14, then the fastening bolt 11 is inserted into the hole 16, using the nut 12 and the fastening bolt 11 is connected with the screw thread and both closely connected with the outer wall of the connecting rod 6 to the body 7 and the plug rod 15 are fixed, thus guaranteeing that the screwdriver can be screwed on the screw, and then realize the effect that the body 7 can be disassembled to facilitate the user to replace it, improve the practicability of the screwdriver, and in the process of use, the user can also push the force rod 3 by single finger to rotate the way to make the screw rod 4 rotate, so that the lifting ring 10 lifting driven connecting rod 6 to lift, so that the body 7 can be screwed on the screw of different depth, and then improve the use range of the screwdriver.

[0034] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A screwdriver with a retractable screwdriver head comprising a handle (1), characterized in that: The top of the handle (1) is provided with a movable slot (2), the middle of the handle (1) is provided with a rotating slot (17), the inner wall of the rotating slot (17) is rotatably connected with a lead screw (4), the top end of the lead screw (4) is fixedly connected with a force rod (3), the outer wall of the lead screw (4) is threadedly connected with a lifting ring (10), the bottom of the handle (1) is fixedly connected with a sleeve (5), the inner wall of the sleeve (5) is fixedly connected with a straight rod (8), the outer wall of the straight rod (8) is sleeved with a spring (9), the bottom of the lifting ring (10) is fixedly connected with a connecting rod (6), the middle of the connecting rod (6) is respectively provided with a circular groove (13) and a insertion slot (14), the inner wall of the insertion slot (14) is inserted with an insertion rod (15), the bottom end of the insertion rod (15) is fixedly connected with a body (7), the outer wall of the insertion rod (15) is provided with a through hole (16), the inner wall of the through hole (16) is inserted with a fastening bolt (11), the outer wall of the fastening bolt (11) is threadedly connected with a nut (12).

2. The retractable screwdriver of claim 1, wherein: The outer wall of the lead screw (4) is rotatably connected with the inner wall of the rotating slot (17), and the inner wall of the circular groove (13) is slidably connected with the outer wall of the lead screw (4).

3. The retractable screwdriver of claim 1, wherein: The outer walls of the fastening bolt (11) and the nut (12) are tightly attached to the outer wall of the connecting rod (6), and the body (7) is fixedly connected with the connecting rod (6) through the insertion rod (15).

4. The retractable screwdriver of claim 1, wherein: The number of the straight rods (8) is two, and the two straight rods (8) are symmetrically distributed along the inner wall of the sleeve (5).

5. The retractable screwdriver of claim 1, wherein: The bottom of the force rod (3) is rotatably connected with the bottom of the inner wall of the movable slot (2), and the force rod (3) is made of galvanized iron metal.

6. The retractable screwdriver of claim 1, wherein: The outer wall of the lifting ring (10) is slidably connected with the inner wall of the sleeve (5), and the outer wall of the connecting rod (6) is slidably connected with the inner wall of the sleeve (5).

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