CN107414143A - A kind of household portable hand drill - Google Patents

Abstract

A household portable manual pressure drill, including a handle 1, an upper sleeve rod 2, a lower sleeve rod 3, an inertia plate 4, a support cover 5, a one-way clutch device 6, a power transmission device 7, an elastic retaining ring 18, a limiter Position block 19, collet 20, drill bit 21, lock switch 22. When the upper sleeve rod 2 is pressed down, the upper bevel gear 11 in the one-way clutch device 6 meshes with the lower bevel gear 14, and the downward linear motion of the double helix screw 10 is converted into the circumferential direction of the lower sleeve rod 3 through the power transmission device 7. The rotary motion drives the drill bit 21 to rotate; when the upper sleeve rod 2 is pulled up, the upper bevel gear 11 in the one-way clutch device 6 is separated from the lower bevel gear 14, and the upward linear motion of the double helix screw rod 10 passes through the power transmission device 7 It is converted into its own idling; the handle 1 is pulled up and down repeatedly in this way, and under the constant acceleration of the inertial disk 4, the speed of the drill bit 21 gradually increases to realize the drilling operation. The invention has reasonable structural design, simple and convenient operation, and is easy to popularize.

Description

A household portable hand-pressed drill

technical field

The invention is a manual drilling tool, which is a household portable hand-pressed drill that does not need a power supply.

Background technique

There are a great variety of drilling tools with different functions on the market, yet most of the drilling tools are suitable for field drilling or industrial production drilling, and a kind of household portable hand-pressed drill has not yet appeared. In daily life, it is indispensable for us to drill some thicker books, materials, plastic products, rubber products, wood products and even some thinner aluminum plates, copper plates, iron plates, etc. Many people often use Smashing sharp objects to drill holes, people can use industrial drilling machines to drill holes if conditions permit, but industrial drilling machines are often large in size, heavy in weight, inconvenient to carry, and produce loud noises, even if small Hand drills will also be limited by the location of the power supply, inconvenient to drill holes, short battery life, and high power consumption; it is not advisable to drill holes by smashing sharp objects. Safe, easy to hurt the body.

Contents of the invention

In view of the above-mentioned problems, the present invention aims to provide a hand-pressed drill that does not require a power source, has a simple structure, is convenient to operate, and is suitable for household use.

In order to achieve the above object, the present invention is achieved through the following technical solutions: a hand press type drill, comprising a handle 1, an upper sleeve rod 2, a lower sleeve rod 3, an inertial disc 4, a bracket 5 (by an upper bracket 8 and Lower bracket cover 9), one-way clutch device 6 (composed of double helix screw rod 10, upper bevel gear 11, upper sleeve 12, spring 13 and lower bevel gear 14), power transmission device 7 (composed of lower sleeve 15 , double helix screw 10, ball 16 and helical sleeve 17), circlip 18, limit block 19, collet 20, drill bit 21, locking switch 22 (composed of pipe joint sleeve 23 and locking cap 24 ). The handle 1 is fixedly connected to the upper end of the upper sleeve rod 2; the upper sleeve rod 2 is slidably socketed on the lower sleeve rod 3, and the inner diameter of the upper sleeve rod 2 is slightly larger than the outer diameter of the lower sleeve rod 3; the upper sleeve 12 is fixed on the The upper end of the upper sleeve rod 2, and the upper bevel gear 11 is affixed to the upper end of the upper sleeve 12; the lower sleeve 15 is affixed to the upper end of the lower sleeve rod 3, and the spiral sleeve 17 is affixed to the lower sleeve 15 The double helix screw 10 moves through the upper bevel gear 11 and the helical sleeve 17, the lower bevel gear 14 is affixed to the upper end of the double helix screw 10 and is located below the upper bevel gear 11, and the limit stopper 19 is affixed to the double helix The lower end of the helical screw rod 10; the spring 13 is used as a buffer, and is arranged between the upper bevel gear 11 and the lower bevel gear 14; the ball 16 is installed in the double helical groove that the double helix screw rod 10 cooperates with the helical sleeve 17; The ring 18 is respectively installed on the lower end surface of the upper sleeve 12 and the upper and lower end surfaces of the lower sleeve 15 to realize axial positioning; the lower end of the lower sleeve rod 3 is provided with a magnetic chuck 20, and the drill bit 21 is installed on the chuck 20 Inside, an inertia disk 4 is fixed at a distance of 10mm from the upper end surface of the chuck 20; the bracket cover 5 is socketed on the lower sleeve rod 3 through a bearing, and encapsulates the inertia disk 4; the lower end of the upper sleeve rod 2 and the upper end of the lower sleeve rod 3 A locking switch 22 is installed at the joint.

Further, the handle 1 can be made of rubber material and provided with anti-skid lines.

Further, the double-helix screw 10, the upper bevel gear 11, the spring 13 and the lower bevel gear 14 form the one-way clutch device 6 inside the upper sleeve 12 to ensure that the drill bit 21 is driven by the lower sleeve rod 3 for one-way rotation .

Further, the spring 13 can be purchased at a hardware store as a standard part, and is arranged between the upper bevel gear 11 and the lower bevel gear 14, and has a buffering effect.

Further, the double-helix screw 10 , the ball 16 and the helical sleeve 17 form the power transmission device 7 inside the lower sleeve 15 , so as to convert the linear motion of the screw into the rotational motion of the lower sleeve rod 3 .

Further, the direction of rotation of the double helix screw 10 is consistent with the direction of rotation of the double helix inside the helical sleeve 17, both are left-handed, and the pitch range is between 5 and 10 mm. Several balls 16 with the same specification are installed in the groove to form a ball screw pair.

Further, the limit block 19 is fixedly connected to the lower top of the double helix screw 10 to prevent the double helix screw 10 from breaking away from the helical sleeve 17 .

Further, the circlip 18 can be purchased at a hardware store, and has the functions of realizing axial positioning and buffering part of rigid impact force.

Furthermore, the inertia disk 4 can be made of hard lead or alloy steel with a mass range of 1-2kg, which is beneficial to increase the pressure, increase the moment of inertia and maintain the advantages of rotational balance.

Further, the bracket cover 5 is composed of an upper bracket cover 8 and a lower bracket cover 9, the inner surface of which is in clearance fit with the outer surface of the inertia disk 4, and the joints of the upper and lower bracket covers are connected by screws, and the surface of the bracket cover 5 The rubber with anti-slip pattern is beneficial to increase the friction of holding the cover, stabilize the drill, and facilitate drilling operations in four directions: up, down, left, and right.

Further, the matching section of the collet 20 and the drill bit 21 is designed to be a regular hexagon, and the collet 20 is magnetic, and the drill bit 21 with different standard diameters can be replaced according to the required drilling size.

Further, the locking switch 22 is composed of a pipe socket 23 and a locking cap 24 through threaded cooperation. The pipe socket 23 is fixedly connected to the lower end of the upper sleeve rod 2 and has a clearance fit with the outer surface of the lower sleeve rod 3, so that Lock in non-working state and open in working state.

Further, the upper sleeve rod 2, the lower sleeve rod 3, the upper bracket cover 8, the lower bracket cover 9, the double helix screw rod 10, the upper bevel gear 11, the upper sleeve 12, the lower bevel gear 14, the lower sleeve 15, the ball 16, screw sleeve 17, limit block 19, chuck 20, drill bit 21, nipple sleeve 23, locking cap 24 can be made with alloy material respectively.

The beneficial effects of the present invention are: the household manual pressure drill has a reasonable structural design, simple operation, small volume, relatively light weight, and is easy to carry. When drilling, a drill bit with a suitable specification can be selected according to the size of the hole required for the work. And it is possible to utilize the inertia disk 4 to increase the moment of inertia and improve the drilling efficiency.

Description of drawings

Fig. 1 is a schematic structural view of a household portable hand-pressed drill according to the present invention.

Fig. 2 is a schematic diagram of the movement state of the upper casing rod 2 according to the present invention under pressure.

Fig. 3 is a schematic diagram of the movement state of the upper sleeve rod 2 according to the present invention being pulled up under force.

In each accompanying drawing: include handle 1, upper sleeve rod 2, lower sleeve rod 3, inertia disk 4, bracket cover 5 (composed of upper bracket cover 8 and lower bracket cover 9), one-way clutch device 6 (composed of double helix wire Screw rod 10, upper bevel gear 11, upper sleeve 12, spring 13 and lower bevel gear 14), power transmission device 7 (composed of lower sleeve 15, double helix screw 10, ball 16 and helical sleeve 17), elastic Retaining ring 18, limit block 19, collet 20, drill bit 21, locking switch 22 (made up of nipple sleeve 23 and locking cap 24).

detailed description

Below in conjunction with accompanying drawings 1, 2, 3, the technical solution of the present invention is described in detail.

A kind of household portable hand press drill as shown in Figure 1, comprises handle 1, upper sleeve rod 2, lower sleeve rod 3, inertia plate 4, support cover 5 (by upper support cover 8 and lower support cover 9 composition ), one-way clutch device 6 (composed of double helix screw rod 10, upper bevel gear 11, upper sleeve 12, spring 13 and lower bevel gear 14), power transmission device 7 (composed of lower sleeve 15, double helix screw rod 10, ball 16 and screw sleeve 17 form), circlip 18, limit block 19, collet 20, drill bit 21, locking switch 22 (made up of nipple sleeve 23 and locking cap 24). The handle 1 is fixedly connected to the upper end of the upper sleeve rod 2; the upper sleeve rod 2 is slidably socketed on the lower sleeve rod 3, and the inner diameter of the upper sleeve rod 2 is slightly larger than the outer diameter of the lower sleeve rod 3; the upper sleeve 12 is fixed on the The upper end of the upper sleeve rod 2, and the upper bevel gear 11 is affixed to the upper end of the upper sleeve 12; the lower sleeve 15 is affixed to the upper end of the lower sleeve rod 3, and the spiral sleeve 17 is affixed to the lower sleeve 15 The double helix screw 10 moves through the upper bevel gear 11 and the helical sleeve 17, the lower bevel gear 14 is affixed to the upper end of the double helix screw 10 and is located below the upper bevel gear 11, and the limit stopper 19 is affixed to the double helix The lower end of the helical screw rod 10; the spring 13 is used as a buffer, and is arranged between the upper bevel gear 11 and the lower bevel gear 14; the ball 16 is installed in the double helical groove that the double helix screw rod 10 cooperates with the helical sleeve 17; The ring 18 is respectively installed on the lower end surface of the upper sleeve 12 and the upper and lower end surfaces of the lower sleeve 15 to realize axial positioning; the lower end of the lower sleeve rod 3 is provided with a magnetic chuck 20, and the drill bit 21 is installed on the chuck 20 Inside, an inertia disk 4 is fixed at a distance of 10mm from the upper end surface of the chuck 20; the bracket cover 5 is socketed on the lower sleeve rod 3 through a bearing, and encapsulates the inertia disk 4; the lower end of the upper sleeve rod 2 and the upper end of the lower sleeve rod 3 A locking switch 22 is installed at the joint.

As shown in Figure 2, hold the handle 1 with one hand, support the cover 5 with the other hand, and apply a downward force F ₁ to the upper sleeve rod 2, in the one-way clutch device 6, the upper bevel gear 11 then moves down, and the upper bevel gear 11 and the lower bevel gear 14 are gradually meshed. When continuing to move downward, the double helix screw 10 starts to move down. When passing through the power transmission device 7, the downward linear motion is converted into The circumferential rotation of the spiral sleeve 17 drives the lower sleeve 15 to drive the lower sleeve rod 3 to rotate, and then drives the inertial disk 4 installed at the lower end of the lower sleeve rod 3 and the drill bit 21 inside the chuck 20 to rotate to realize normal operation.

As shown in Figure 3, when holding the handle 1 with one hand and supporting the cover 5 with the other hand, when applying an upward force F ₂ to the upper sleeve rod 2, in the one-way clutch device 6, the upper bevel gear 11 Moving up thereupon, the upper bevel gear 11 is separated from the lower bevel gear 14 gradually. When continuing to move upward, the double helix screw rod 10 begins to move upward. When passing through the power transmission device 7, the upward linear motion is converted into its own circular motion. Rotational movement is idling to realize working reset.

Claims (6)

1. A household portable manual pressure drill, including a handle 1, an upper sleeve rod 2, a lower sleeve rod 3, an inertial disc 4, a support cover 5 (composed of an upper support cover 8 and a lower support cover 9), a one-way Clutch device 6 (composed of double helix screw rod 10, upper bevel gear 11, spring 13 and lower bevel gear 14 inside upper sleeve 12), power transmission device 7 (composed of double helix screw rod 10, ball 16 and helical sleeve 17 Composed inside the lower sleeve 15), circlip 18, limit stop 19, chuck 20, drill bit 21, locking switch 22 (composed of pipe joint sleeve 23 and locking cap 24), it is characterized in that: handle 1 Fixed on the upper end of the upper sleeve rod 2; the upper sleeve rod 2 is slidingly socketed on the lower sleeve rod 3, the inner diameter of the upper sleeve rod 2 is slightly larger than the outer diameter of the lower sleeve rod 3; the upper sleeve 12 is fixed on the upper sleeve rod 2 The upper end of the interior, and the upper bevel gear 11 is affixed to the upper end of the upper sleeve 12; the lower sleeve 15 is affixed to the upper end of the lower sleeve rod 3, and the helical sleeve 17 is affixed to the lower sleeve 15; the double helix The screw 10 moves through the upper bevel gear 11 and the helical sleeve 17, the lower bevel gear 14 is affixed to the upper end of the double helix screw 10 and is located below the upper bevel gear 11, and the limit block 19 is affixed to the double helix screw 10 The lower end of the lower end; the spring 13 is used as a buffer, and is arranged between the upper bevel gear 11 and the lower bevel gear 14; the ball 16 is installed in the double helical groove of the double helix screw 10 and the helical sleeve 17; the elastic retaining ring 18 is respectively installed On the lower end surface of the upper sleeve 12 and the upper and lower end surfaces of the lower sleeve 15, the axial positioning is realized; the lower end of the lower sleeve rod 3 is provided with a magnetic chuck 20, and the drill bit 21 is installed inside the chuck 20, and the distance An inertia disk 4 is fixed at 10 mm from the upper end surface of the chuck 20; the support cover 5 is sleeved on the lower sleeve rod 3 through a bearing, and encapsulates the inertia disk 4; Lock switch 22. 2. A household portable hand-pressed drill according to claim 1, characterized in that: the direction of rotation of the double helix screw rod 10 is consistent with the direction of rotation of the double helix inside the helical sleeve 17, both are left-handed, and the pitch The range is between 5mm and 10mm. Several balls 16 of the same specification are installed in the double helical grooves of the double helix screw 10 and the helical sleeve 17 to form a ball screw pair. 3. A household portable hand-pressed drill according to claim 1, characterized in that the inertia disk 4 can be made of hard lead or alloy steel with a mass range of 1-2 kg. 4. A kind of household portable hand-press type drill according to claim 1, is characterized in that: bracket cover 5 is made up of upper bracket cover 8 and lower bracket cover 9, and its inner surface and the outer surface of inertia disk 4 are Clearance fit, the joints of the upper and lower brackets are connected by screws, and the surface of the bracket 5 is provided with rubber with anti-skid lines. 5. A household portable hand-pressed drill according to claim 1, characterized in that: the matching section of the collet 20 and the drill 21 is designed as a regular hexagon, and the collet 20 is magnetic. 6. A household portable manual pressure drill according to claim 1, characterized in that: the lock switch 22 is composed of a pipe socket 23 and a lock cap 24 through threaded cooperation, and the pipe socket 23 is fixed on the The lower end of the upper sleeve rod 2 is clearance fit with the outer surface of the lower sleeve rod 3 .