Screwdriver for constructional engineering

Abstract

The utility model discloses a screwdriver for constructional engineering, which relates to the technical field of screwdrivers, and comprises a screwdriver main body, a plurality of uniformly distributed accommodating grooves are arranged at the rear end of the screwdriver main body, T-shaped plugs are detachably mounted at the open ends of the accommodating grooves, a screwdriver head is detachably mounted at the front end of the screwdriver main body, and a mounting column is fixedly arranged at one end of the screwdriver head. A rectangular groove is formed in the screwdriver body, a gear is arranged in the rectangular groove, a first rack and a second rack are arranged on the two sides of the gear respectively, an insertion rod is fixedly arranged at one end of the first rack, a pressing rod is fixedly arranged at one end of the second rack, a spring sleeves the outer side of the pressing rod, and screwdriver heads of different types are stored in the containing grooves. According to the screwdriver, the screwdriver heads can be rapidly replaced, various screwdriver heads are contained in the screwdriver body and can be taken and placed at any time, operation is easy, and efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of screwdrivers, in particular to a screwdriver for construction engineering. Background Technique

[0002] Screwdrivers are used to fix screws, generally divided into flat screwdrivers, cross screwdrivers and, chain head screwdrivers. When using a screwdriver to fix a screw, different screwdrivers are switched according to the shape of the screw.

[0003] During the use of the existing screwdrivers, it is necessary to switch different screwdrivers to tighten different screws, and the switching process is cumbersome.

[0004] In view of the above problems, the utility model provides a screwdriver for construction engineering. Content of the Utility Model

[0005] The purpose of the utility model is to provide a screwdriver for construction engineering, which can quickly replace the screwdriver head, and a variety of screwdriver heads are stored in the screwdriver body, which can be taken and placed at any time, with simple operation and high efficiency, thus solving the problems in the background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a screwdriver for construction engineering, including a screwdriver body, a number of uniformly distributed storage grooves are opened at the rear end of the screwdriver body, a T-shaped plug is detachably installed at the opening end of the storage groove, a screwdriver head is detachably installed at the front end of the screwdriver body, an installation column is fixedly provided at one end of the screwdriver head, a rectangular groove is opened inside the screwdriver body, a gear is arranged inside the rectangular groove, a first rack and a second rack are respectively arranged on both sides of the gear, a plug rod is fixedly provided at one end of the first rack, a pressing rod is fixedly provided at one end of the second rack, a spring is sleeved outside the pressing rod, and different types of screwdriver heads are stored in a number of storage grooves.

[0007] Further, a circular groove is opened at the front end of the screwdriver body, grooves are symmetrically opened on the inner side wall of the circular groove, convex blocks are fixedly provided on both sides of the installation column, the installation column is mutually engaged with the inner side of the circular groove and has a matching size, and the convex blocks are mutually engaged with the inner side of the grooves and have a matching size.

[0008] Further, the gear is rotatably connected to the inner side of the rectangular groove through a positioning pin, the gear is cooperatively connected with the first rack, the gear is cooperatively connected with the second rack, the first rack is slidably connected to the inner surface of the rectangular groove, the plug rod is slidably connected to the side wall of the rectangular groove, the second rack is slidably connected to the inner surface of the rectangular groove, the pressing rod is slidably connected to the side wall of the rectangular groove, the spring is fixedly connected between the second rack and the inner side wall of the rectangular groove, a button is fixedly provided at one end of the pressing rod away from the second rack, a jack is opened inside the installation column, and one end of the plug rod away from the first rack is mutually engaged with the inner side of the jack.

[0009] Further, one end of the T-shaped plug is threadedly connected to the inner side of the opening end of the receiving groove, and anti-slip threads are machined on the outer side of the T-shaped plug.

[0010] Further, a plurality of uniformly distributed convex strips are fixedly arranged on the outer side of the screwdriver body.

[0011] Further, anti-slip threads are machined on the outer side of the button, and the size is appropriate.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] A screwdriver for construction engineering provided by the present utility model, when using the screwdriver for construction engineering, first select a suitable screwdriver bit according to the shape of the screw, rotate and screw out the T-shaped plug from the opening end of the receiving groove to take out the screwdriver bit, then screw on the T-shaped plug, and then squeeze the pressing rod. The pressing rod drives the second rack to move linearly. The movement of the second rack drives the gear to rotate, and the rotation of the gear drives the first rack to move, so that one end of the insertion rod moves to one side. At this time, the spring is stretched. Then insert the installation column at one end of the screwdriver bit into the front end of the screwdriver body. Then release the pressing rod. Under the pulling of the spring when it returns to its original shape, the second rack resets and drives the gear to reverse, driving the first rack to drive one end of the insertion rod to reset and insert into the installation column. At this time, the screwdriver bit is fixed and can be used. If disassembly and replacement are required, only need to squeeze the pressing rod to finally drive one end of the insertion rod out of the installation column and take out the screwdriver bit. The purpose of such a design is that the screwdriver bit can be quickly replaced, and a variety of screwdriver bits are stored in the screwdriver body and can be taken and placed at any time, with simple operation and high efficiency. Description of the Drawings

[0014] Figure 1 is the overall structure schematic diagram of the present utility model;

[0015] Figure 2 is the front-end structure schematic diagram of the screwdriver body in the present utility model;

[0016] Figure 3 is the internal structure schematic diagram of the screwdriver body in the present utility model;

[0017] Figure 4 is the screwdriver rod structure schematic diagram of the present utility model;

[0018] Figure 5 is the present utility model Figure 3 enlarged view of A in.

[0019] In the figure: 1, screwdriver body; 2, receiving groove; 3, T-shaped plug; 4, circular groove; 5, groove; 6, installation column; 7, convex block; 8, screwdriver bit; 9, jack; 10, rectangular groove; 11, gear; 12, first rack; 13, insertion rod; 14, second rack; 15, pressing rod; 16, spring; 17, button; 18, convex strip. Detailed implementation manners

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0021] To solve the technical problem of how to facilitate the replacement of the screwdriver bit, as Figures 1-5 shown, the following preferred technical solutions are provided:

[0022] A screw driver for construction engineering includes a screwdriver main body 1. A plurality of uniformly distributed storage grooves 2 are opened at the rear end of the screwdriver main body 1. A T-shaped plug 3 is detachably installed at the opening end of the storage groove 2. A screwdriver bit 8 is detachably installed at the front end of the screwdriver main body 1. An installation column 6 is fixedly provided at one end of the screwdriver bit 8. A rectangular groove 10 is opened inside the screwdriver main body 1. A gear 11 is arranged inside the rectangular groove 10. A first rack 12 and a second rack 14 are respectively arranged on both sides of the gear 11. A plug rod 13 is fixedly provided at one end of the first rack 12. A pressing rod 15 is fixedly provided at one end of the second rack 14. A spring 16 is sleeved outside the pressing rod 15. Different types of screwdriver bits 8 are stored in a plurality of storage grooves 2.

[0023] Specifically, when using the screw driver for construction engineering, first select a suitable screwdriver bit 8 according to the shape of the screw, rotate and screw out the T-shaped plug 3 from the opening end of the storage groove 2 to take out the screwdriver bit 8, then screw on the T-shaped plug 3, and then squeeze the pressing rod 15. The pressing rod 15 drives the second rack 14 to move linearly. The movement of the second rack 14 drives the gear 11 to rotate. The rotation of the gear 11 drives the first rack 12 to move, so that one end of the plug rod 13 moves to one side. At this time, the spring 16 is stretched. Then insert the installation column 6 at one end of the screwdriver bit 8 into the front end inside the screwdriver main body 1. Then release the pressing rod 15. Under the pulling of the spring 16 to restore deformation, the second rack 14 resets and drives the gear 11 to reverse, driving the first rack 12 to drive one end of the plug rod 13 to reset and insert into the installation column 6. At this time, the screwdriver bit 8 is fixed and can be used. If disassembly and replacement are required, only need to squeeze the pressing rod 15 to finally drive one end of the plug rod 13 to leave the installation column 6 and take out the screwdriver bit 8. The purpose of such design is that the screwdriver bit 8 can be quickly replaced, and a variety of screwdriver bits 8 are stored in the screwdriver main body 1, which can be taken and placed at any time, with simple operation and high efficiency.

[0024] Further, as Figures 2-4 shown, the following preferred technical solutions are provided:

[0025] The front end of the screwdriver body 1 is provided with a circular groove 4, and the inner side wall of the circular groove 4 is symmetrically provided with grooves 5. Both sides of the mounting post 6 are fixedly provided with bumps 7. The mounting post 6 is engaged with the inner side of the circular groove 4 and they are of matching sizes. The bumps 7 are engaged with the inner side of the grooves 5 and they are of matching sizes. The purpose of such a design is to preliminarily limit the installation of the screwdriver bit 8.

[0026] Further, as Figures 1-5 shown, the following preferred technical solutions are provided:

[0027] The gear 11 is rotatably connected to the inner side of the rectangular groove 10 through a positioning pin. The gear 11 is connected in cooperation with the first rack 12, and the gear 11 is connected in cooperation with the second rack 14. The first rack 12 is slidably connected to the inner surface of the rectangular groove 10. The plug rod 13 is slidably connected to the side wall of the rectangular groove 10. The second rack 14 is slidably connected to the inner surface of the rectangular groove 10. The pressing rod 15 is slidably connected to the side wall of the rectangular groove 10. The spring 16 is fixedly connected between the second rack 14 and the inner side wall of the rectangular groove 10. One end of the pressing rod 15 away from the second rack 14 is fixedly provided with a button 17. A jack 9 is provided inside the mounting post 6. One end of the plug rod 13 away from the first rack 12 is engaged with the inner side of the jack 9. The purpose of such a design is to drive one end of the plug rod 13 to move by pressing the button 17 to facilitate insertion into the mounting post 6, and release the button 17 to drive one end of the plug rod 13 to insert into the jack 9 to fix the mounting post 6.

[0028] Further, as Figure 1 and Figure 3 shown, the following preferred technical solutions are provided:

[0029] One end outside of the T-shaped plug 3 is threadedly connected to the inner side of the opening end of the storage groove 2. The outer side of the T-shaped plug 3 is processed with anti-slip threads. The purpose of such a design is to facilitate the opening and closing of the storage groove 2 so as to facilitate the taking and placing of the screwdriver bit 8.

[0030] Further, as Figure 1 shown, the following preferred technical solutions are provided:

[0031] A number of uniformly distributed convex strips 18 are fixedly provided on the outer side of the screwdriver body 1. The purpose of such a design is to improve the anti-slip performance and facilitate holding the screwdriver body 1 by hand and rotating it.

[0032] Further, as Figure 2 shown, the following preferred technical solutions are provided:

[0033] The outer side surface of the button 17 is processed with anti-slip threads and is of appropriate size. The purpose of such a design is to facilitate pressing the button 17 with the thumb.

[0034] In summary, when using a screwdriver for construction engineering, first select a suitable screwdriver bit 8 according to the shape of the screw. Rotate and unscrew the T-shaped plug 3 from the open end of the storage groove 2 to take out the screwdriver bit 8, then screw the T-shaped plug 3 back on. Next, squeeze the pressing rod 15. The pressing rod 15 drives the second rack 14 to move linearly. The movement of the second rack 14 drives the gear 11 to rotate. The rotation of the gear 11 drives the first rack 12 to move, causing one end of the insertion rod 13 to move to one side. At this time, the spring 16 is stretched. Then insert the mounting post 6 at one end of the screwdriver bit 8 into the front end inside the screwdriver body 1. Then release the pressing rod 15. Under the pulling force of the spring 16 restoring its deformation, the second rack 14 resets and drives the gear 11 to reverse, driving the first rack 12 to drive one end of the insertion rod 13 to reset and insert into the mounting post 6. At this time, the screwdriver bit 8 is fixed and can be used. If disassembly and replacement are required, only need to squeeze the pressing rod 15 to finally drive one end of the insertion rod 13 out of the mounting post 6 and take out the screwdriver bit 8. The purpose of this design is to quickly replace the screwdriver bit 8, and a variety of screwdriver bits 8 are stored in the screwdriver body 1, which can be taken and placed at any time, with simple operation and high efficiency.

[0035] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0036] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A screwdriver for construction projects, characterized in that: It includes a screwdriver body (1). A number of uniformly distributed storage grooves (2) are provided at the rear end of the screwdriver body (1). A T-shaped plug (3) is detachably installed at the opening end of the storage groove (2). A screwdriver bit (8) is detachably installed at the front end of the screwdriver body (1). An installation post (6) is fixedly provided at one end of the screwdriver bit (8). A rectangular groove (10) is provided inside the screwdriver body (1). A gear (11) is arranged inside the rectangular groove (10). A first rack (12) and a second rack (14) are respectively arranged on both sides of the gear (11). A plug rod (13) is fixedly provided at one end of the first rack (12). A pressing rod (15) is fixedly provided at one end of the second rack (14). A spring (16) is sleeved outside the pressing rod (15). Different types of screwdriver bits (8) are stored in a number of storage grooves (2).

2. The screwdriver for construction engineering according to claim 1, characterized in that: A circular groove (4) is provided at the front end of the screwdriver body (1). Grooves (5) are symmetrically provided on the inner side wall of the circular groove (4). Protrusions (7) are fixedly provided on both sides of the installation post (6). The installation post (6) is mutually engaged with the inner side of the circular groove (4) and they are of matching sizes. The protrusions (7) are mutually engaged with the inner side of the grooves (5) and they are of matching sizes.

3. A screwdriver for construction engineering according to claim 1, characterized in that: The gear (11) is rotatably connected to the inner side of the rectangular groove (10) through a positioning pin. The gear (11) is cooperatively connected with the first rack (12). The gear (11) is cooperatively connected with the second rack (14). The first rack (12) is slidably connected to the inner surface of the rectangular groove (10). The plug rod (13) is slidably connected to the side wall of the rectangular groove (10). The second rack (14) is slidably connected to the inner surface of the rectangular groove (10). The pressing rod (15) is slidably connected to the side wall of the rectangular groove (10). The spring (16) is fixedly connected between the second rack (14) and the inner side wall of the rectangular groove (10). A button (17) is fixedly provided at one end of the pressing rod (15) away from the second rack (14). A jack (9) is provided inside the installation post (6). The end of the plug rod (13) away from the first rack (12) is mutually engaged with the inner side of the jack (9).

4. A screwdriver for construction engineering according to claim 1, characterized in that: One end of the T-shaped plug (3) is threadedly connected to the inner side of the opening end of the storage groove (2). Anti-slip threads are processed on the outside of the T-shaped plug (3).

5. A screwdriver for construction engineering according to claim 1, characterized in that: A number of uniformly distributed protrusions (18) are fixedly provided on the outside of the screwdriver body (1).

6. The screwdriver for construction engineering according to claim 3, wherein: Anti-slip threads are processed on the outer surface of the button (17), and its size is appropriate.

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