CN110216615A - One kind can be manually rotated screwdriver - Google Patents

Abstract

The invention discloses a manual rotary screwdriver, which includes a handle and a knife bar, the handle is connected with the knife bar, the handle includes a first handle and a second handle, and one end of the first handle is connected to the second handle. One end of the handle is vertically connected, the inside of the first handle is provided with a first cavity, the inside of the second handle is provided with a second cavity communicating with the first cavity, and the inside of the first cavity is A driving gear and a rotating rod are provided, the middle part of the rotating rod is hinged with the inner wall of the first cavity, one end of the rotating rod is hinged with the side wall of the driving gear, and the other end of the rotating rod is arranged outside the first cavity , the second cavity is provided with a driven gear, the driving gear and the driven gear are connected by a chain, and the cutter bar is connected with the driven gear. The present invention solves the problem of hand injury caused by long-term use of the screwdriver. The device has a simple and small structure, can be applied to different places, and increases the application range.

Description

A manual rotary screwdriver

technical field

The invention relates to the technical field of screwdrivers, in particular to a manual rotary screwdriver.

Background technique

A screwdriver is a tool used to turn a screw into place, usually with a thin wedge-shaped head that fits into a slot or notch in the screw head.

When using a traditional screwdriver, it is necessary to rotate the handle in the palm of the hand. Long-term use will cause greater damage to the palm of the hand. However, most of the rotating screwdrivers in the prior art are electric screwdrivers, which are mainly powered by the rotation of the motor. Due to the need to use a power source and the large volume of the electric rotary screwdriver, not only the place of use is limited, but also the installation space of the screws greatly limits the use of the electric rotary screwdriver.

Contents of the invention

The present invention aims at the above-mentioned deficiencies in the prior art, and provides a manual rotary screwdriver, which solves the problem of palm damage caused by long-term use of the current screwdriver. Compared with the traditional screwdriver, the invention is more labor-saving and more convenient to use; at the same time, the device has a simple structure , Small and compact, can be applied to different places, even in a small space, which solves the problem of limited use of electric rotary screwdrivers at present, and increases the scope of use.

To achieve the above object, the invention provides the following technical solutions:

A manual rotary screwdriver, comprising a handle and a knife bar, the handle is connected to the knife bar, the handle includes a first handle and a second handle, one end of the first handle is perpendicular to one end of the second handle connected, the inside of the first handle is provided with a first cavity, the inside of the second handle is provided with a second cavity communicating with the first cavity, and a driving gear is provided in the first cavity , a rotating rod, the middle part of the rotating rod is hinged with the inner wall of the first cavity, one end of the rotating rod is hinged with the side wall of the driving gear, and the other end of the rotating rod is arranged on the outside of the first cavity, the first cavity A driven gear is arranged in the second cavity, the driving gear is connected with the driven gear through a chain, and the cutter bar is connected with the driven gear.

Preferably, the diameter of the driving gear is larger than that of the driven gear.

Preferably, the rotating rod includes a telescopic rod, a telescopic sleeve, and an operating rod, the operating rod and the telescopic sleeve are connected through a swivel, the swivel is hinged to the inner wall of the first cavity, and one end of the telescopic rod Slidingly matched with the telescopic sleeve, the other end of the telescopic rod is provided with a pull ring, and the pull ring is hinged to the side wall of the driving gear.

Preferably, a spring is provided between the operating rod and the inner wall of the first cavity.

Preferably, a sleeve is provided at the end of the first handle away from the second handle.

Preferably, a hammer cap is provided on the outside of the sleeve, and the hammer cap is socketed with the first handle.

Preferably, the upper end surface of the driven gear is provided with a rotating shaft, the lower end surface of the driven gear is provided with an annular rotating groove, and the upper inner wall of the second cavity is provided with a shaft hole matched with the rotating shaft. The lower inner wall of the second cavity is provided with a fixing ring matched with the rotating groove.

Preferably, the lower end surface of the second handle is provided with a first socket, the middle part of the lower end surface of the driven gear is provided with a fixing hole, the knife rod is a prism structure, and one end of the knife rod is a cutter head. The other end of the knife rod passes through the first insertion hole and cooperates with the fixing hole.

Preferably, the cutter head includes a straight cutter head or a cross cutter head.

Preferably, the end of the second handle is provided with a second insertion hole matched with the knife rod.

Compared with the prior art, the beneficial effects of the invention are:

1. The invention realizes the rotation of the driven gear by holding the rotating rod in hand, and the driven gear drives the knife rod to rotate to complete the function of screwing, and the operation of the screwdriver can be realized by changing the original hand-turned screwdriver into a simple grasping action, which solves the problem of It solves the problem of palm damage caused by long-term use of the current screwdriver. Compared with the traditional screwdriver, the invention is more labor-saving and more convenient to use. At the same time, the device has a simple and compact structure and can be used in different places, even in a small space. , which solves the problem that the current electric rotary screwdriver is limited in use places, and increases the use range.

2. The diameter of the driving gear of the present invention is larger than that of the driven gear, which saves more power and is beneficial to reduce fatigue.

3. The present invention can meet the length change caused by the rotation of the rotating rod and the driving gear through the sliding cooperation of the telescopic rod and the telescopic sleeve, and has a simple structure, low manufacturing cost and easy implementation.

4. In the present invention, a spring is provided between the operating rod and the inner wall of the first cavity. Under the action of the spring, the operating rod can be automatically returned, which increases the convenience of use, saves operating time, and improves work efficiency.

5. In the present invention, a sleeve is provided at the end of the first handle away from the second handle, which increases the functionality of the use of the present invention and makes the handle have the function of a socket wrench.

6. The present invention is provided with a hammer cap on the outside of the sleeve, and the second grip is used as a hammer handle, so that the whole handle can realize the function of a hammer. This invention integrates the functions of a hammer, a socket wrench, and a screwdriver, increasing the The convenience of carrying is more convenient to use.

7. The upper end of the driven gear of the present invention is fixed by the rotating shaft, and the lower end of the driven gear not only realizes the fixing of the driven gear through the cooperation of the swivel ring and the swivel groove, but also increases the stability of the driven gear rotation, making it easier to use reliable.

8. In the present invention, the driven gear is provided with a first socket that matches with the knife rod, and the knife rod is conveniently inserted and replaced.

9. The shape of the cutter head of the present invention is various, which can be replaced according to the use, increasing the convenience of use.

10. In the present invention, a second socket is provided at the end of the second grip to match the knife rod, which can be used in practice to change the use position of the knife rod. At this time, the first handle can be held to rotate the knife rod, which is not only convenient Apply force, and solve the damage caused by the rotation of the traditional handle in the palm, making it more labor-saving and comfortable to use.

Description of drawings

Fig. 1 is the internal structure schematic diagram of embodiment one;

Fig. 2 is the front view of embodiment one;

Fig. 3 is the bottom view of embodiment one;

Fig. 4 is the structural schematic diagram one of driven gear;

Fig. 5 is the structural representation two of driven gear;

Fig. 6 is the structural representation of cutter bar;

Fig. 7 is a schematic structural diagram of the second embodiment.

Among the figure: 1-handle; 101-first cavity; 102-hammer cap; 103-first jack; 104-first grip; 105-second grip; 106-axis hole; 107-fixed ring; 108-the second jack; 109-the second cavity; 2-driving gear; 3-chain; 4-driven gear; 401-rotating shaft; Cutter head; 6-rotating rod; 601-pull ring; 602-telescopic rod; 603-telescopic sleeve; 604-swivel; 605-operating rod; 7-sleeve; 8-spring.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Embodiment one,

As shown in Figure 1, a manual rotary screwdriver includes a handle 1 and a knife bar 5, the handle 1 is connected to the knife bar 5, and the whole handle 1 is made of metal, which can be iron or stainless steel, and the handle 1 includes a first Handle 104, second handle 105, one end of the first handle 104 is vertically connected with one end of the second handle 105, the inside of the first handle 104 is provided with a first cavity 101, the first The inside of two handles 105 is provided with the second cavity 109 that communicates with the first cavity 101, and the drive gear 2 and the rotating rod 6 are arranged in the first cavity 101, and the drive gear 2 connects with the first cavity through the gear shaft. The inner wall of cavity 101 is rotatably connected, the middle part of the rotating rod 6 is hinged with the inner wall of the first cavity 101, one end of the rotating rod 6 is hinged with the side wall of the driving gear 2, and the other end of the rotating rod 6 is arranged on the first cavity. Outside the cavity 101 , a driven gear 2 is arranged in the second cavity 109 , the driving gear 2 and the driven gear 4 are connected by a chain 3 , and the cutter bar 5 is connected with the driven gear 4 . The rotation of the driven gear 4 is realized by holding the rotating rod 6, and the driven gear 4 drives the knife rod 5 to rotate to complete the function of screwing. The operation of the screwdriver can be realized by changing the original hand-turned screwdriver to a simple grasping action, which solves the problem. It solves the problem of palm damage caused by long-term use of the current screwdriver. Compared with the traditional screwdriver, the invention is more labor-saving and more convenient to use. At the same time, the device has a simple and compact structure and can be used in different places, even in a small space. , which solves the problem that the current electric rotary screwdriver is limited in use places, and increases the use range.

As shown in FIG. 1 , the diameter of the driving gear 3 is larger than that of the driven gear 5 , which saves more power and helps reduce fatigue.

As shown in Figure 1, the rotating rod 6 includes a telescopic rod 602, a telescopic sleeve 603, and an operating rod 605. The inner wall of the chamber 101 is hinged by a rotating shaft. One end of the telescopic rod 602 is slidingly fitted with the telescopic sleeve 603. Lubricating oil is added to the telescopic sleeve 603 to reduce friction. The other end of the telescopic rod 602 is provided with a pull ring 601. The pull ring 601 is hinged to the side wall of the driving gear 2 , and the hinged position is close to the end of the driving gear 2 . The structure of the rotating rod 6 can meet the length change caused by the rotation of the rotating rod 6 and the driving gear 2, and the structure is simple, the manufacturing cost is low, and it is easy to realize.

As shown in Figure 1, a spring 8 is provided between the operating rod 605 and the inner wall of the first cavity 101, under the action of the spring 8, the operating rod 605 can be automatically returned, increasing the convenience of use and saving operating time ,Improve work efficiency.

As shown in Figures 1 and 2, the end of the first handle 104 away from the second handle 105 is provided with a sleeve 7, and the sleeve 7 is welded to the first handle 104, which increases the function of the present invention. property, make the handle have the effect of a socket wrench, hold the second grip 105, and cooperate the sleeve 7 and the bolt to operate.

As shown in Figure 1, a hammer cap 102 is provided on the outside of the sleeve 7, and the hammer cap 102 is socketed with the first handle 101. The end face of the hammer cap 102 is made of stainless steel and has a thickness of at least 1 cm. The hammer cap 102 As the hammer head, the second handle 105 is used as the hammer handle, so that the whole handle can realize the function of the hammer. This invention integrates the functions of the hammer, socket wrench, and screwdriver, which increases the convenience of carrying and is more convenient to use.

As shown in Figure 4, the upper end surface of the driven gear 4 is provided with a rotating shaft 401, as shown in Figure 5, the lower end surface of the driven gear 4 is provided with an annular rotating groove 402, as shown in Figure 3 , the upper inner wall of the second cavity 109 is provided with a shaft hole 106 matched with the rotating shaft 401, the lower inner wall of the second cavity 109 is provided with a fixed ring 107 matched with the rotating groove 402, and a driven gear is added 4 The stability of rotation makes the use more reliable.

As shown in Figure 3, the lower end surface of the second handle 105 is provided with a first jack 103, the middle part of the lower end surface of the driven gear 4 is provided with a fixing hole 403, and the knife bar 5 is a prism structure, One end of the cutter bar 5 is a cutter head 501 , and the cutter head 501 includes a straight cutter head or a cross cutter head.

During use, first select the shape of the cutter head 501 to be used, then insert the upper end of the cutter bar 5 in the first jack 103, and during use, hold the first grip 104, match the cutter head 501 with the screw cap, and then forcefully Pinch the operating lever 605, the operating lever 605 rotates to drive the driving gear 2 to rotate, and the driving gear 2 drives the driven gear 4 to rotate through the chain 3, thereby realizing the rotation of the cutter bar 5, and then the cutter head 501 is separated from the screw cap, and the operation is loosened. The lever 605 and the operating lever 605 are reset under the action of the spring 8, and then the cutter head 501 is matched with the screw, and the operating lever 605 is pinched again to continue tightening the screw, and the above steps are repeated until the screw is tightened.

Embodiment two,

In order to increase the range of use of the device according to the size of different operating spaces.

As shown in Figure 7, the end of the second handle 105 is provided with a second jack 108 that matches the knife bar 5, and the knife bar 5 is inserted into the second jack 108 for use. When the handle 104 is rotated, when some space is relatively narrow, the use method of Embodiment 1 may not be able to operate, so the use method of this embodiment can be changed to make the invention have a wider application range.

Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these modifications and variations.

Claims (10)

1. one kind can be manually rotated screwdriver, including handle, knife bar, the handle is connect with knife bar, it is characterised in that: the handle Including the first handle, the second handle, one end of first handle is vertical with one end of the second handle to be connect, first handle Inside be equipped with the first cavity, the inside of second handle is equipped with the second cavity be connected to the first cavity, first sky Intracavitary to be equipped with driving gear, swingle, the middle part of the swingle and the inner wall of the first cavity are hinged, one end of the swingle Side walls hinged with driving gear, the other end of swingle is set to the outside of the first cavity, is equipped in second cavity driven Gear, is connected between the driving gear and driven gear by chain, and the knife bar is connect with driven gear.

2. one kind as described in claim 1 can be manually rotated screwdriver, it is characterised in that: the diameter of the driving gear be greater than from The diameter of moving gear.

3. one kind as described in claim 1 can be manually rotated screwdriver, it is characterised in that: the swingle includes telescopic rod, stretches Contracting set, operating stick, are connected between the operating stick and telescopic by change, and the change and the inner wall of the first cavity are hinged, One end of the telescopic rod is slidably matched with telescopic, and the other end of the telescopic rod is equipped with pull ring, the pull ring and driving tooth That takes turns is side walls hinged.

4. one kind as claimed in claim 3 can be manually rotated screwdriver, it is characterised in that: the operating stick is interior with the first cavity Spring is equipped between wall.

5. one kind as described in claim 1 can be manually rotated screwdriver, it is characterised in that: first handle is far from the second handle One end be equipped with sleeve.

6. one kind as claimed in claim 5 can be manually rotated screwdriver, it is characterised in that: the outside of the sleeve is equipped with hammer cap, The hammer cap and the first handle are socketed.

7. one kind as described in claim 1 can be manually rotated screwdriver, it is characterised in that: the upper surface of the driven gear is equipped with Shaft, the lower end surface of the driven gear are equipped with circular turn trough, and the upper inner wall of second cavity is equipped with to be cooperated with shaft Axis hole, the lower inner wall of second cavity is equipped with the fixed ring cooperated with turn trough.

8. one kind as claimed in claim 7 can be manually rotated screwdriver, it is characterised in that: the lower end surface of second handle is equipped with First jack, the middle part of the lower end surface of the driven gear are equipped with fixation hole, and the knife bar is prism structure, and one end of knife bar is Cutter head, the other end of knife bar passes through the first jack and fixation hole cooperates.

9. one kind as claimed in claim 8 can be manually rotated screwdriver, it is characterised in that: the cutter head includes a word cutter head or ten Word cutter head.

10. one kind as claimed in claim 9 can be manually rotated screwdriver, it is characterised in that: the end of second handle is equipped with With the second jack of knife bar cooperation.