CN220219137U - Square hole opening device for junction box - Google Patents

Abstract

The utility model relates to a device for the field of building construction, in particular to a square hole device for a junction box; the electric drill comprises an electric drill, wherein the outer side of the output end of the electric drill is connected with a shell, the output end of the electric drill is connected with a main shaft, the main shaft stretches into the shell and is connected with a transmission device, the transmission device comprises a driving gear sleeved on the outer side of the main shaft, two sides of the driving gear are respectively engaged with a driven gear, the center of the driven gear is connected with a driven shaft in a penetrating manner, the bottom of the driven shaft stretches out of the shell and is connected with a drill bit, the main shaft penetrates through the driving gear and is sleeved with a half-tooth connecting shaft, the bottom of the half-tooth connecting shaft is provided with a half-circle gear, the half-circle gear is engaged with a shaft sleeve, the bottom of the shaft sleeve is detachably connected with a saw plate, the bottom of the saw plate stretches out of the shell, and two sides of the two drill bits are respectively provided with a depth control rod; the wire box is provided with the holes, the damage to the secondary structure is small, the slotting is attractive, and the wire box is easy to fix.

Description

Square hole opening device for junction box

Technical Field

The utility model relates to a device for the field of building construction, in particular to a square hole opening device for a junction box.

Background

In building construction, the junction box is an indispensable device in electrical engineering, and its presence is seen substantially at every corner. The junction box can be used for fixing a switch and a socket panel and also used for connecting wires in the middle. Junction boxes are often pre-buried in advance in concrete; in secondary construction, a back-open form is generally employed. For back opening, a cutting machine is generally adopted to cut or water is adopted to drill a round hole; the former trompil is not pleasing to the eye, destroys greatly secondary structure, and the latter opens the hole and need to punch through secondary structure, does not have a good fixed line box simultaneously.

Disclosure of Invention

The utility model provides a square hole opening device for a junction box, which aims to solve the technical problems that the existing opening method for the junction box is inconvenient and is easy to damage a secondary structure and irregular in opening.

In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides a square hole device of open terminal box, includes the electric drill, the output outside of electric drill is connected with the shell, the output of electric drill is connected with the main shaft, the main shaft stretches into inside the shell and is connected with transmission, transmission is including the driving gear that the cover was located the main shaft outside, there is a driven gear in the meshing respectively in the both sides of driving gear, the center of driven gear runs through and is connected with the driven shaft, is connected with the drill bit after the bottom of driven shaft stretches out the shell, the main shaft has cup jointed half-tooth connecting axle after passing the driving gear, and half-tooth connecting axle's bottom is provided with half circle gear, and half circle gear engagement has the axle sleeve, and the axle sleeve inner wall is equipped with two rows of racks that are parallel to each other, and half-tooth connecting axle rotates and makes the axle sleeve make left and right reciprocating motion, axle sleeve bottom detachable is connected with the saw board, the bottom of saw board stretches out the shell, the bottom of shell is seted up the hole with the corresponding position department of bar axle sleeve, the left and right reciprocating motion is convenient for the axle sleeve; the inside of shell is equipped with two-layer fixed plate, driving gear and driven gear all set up between two-layer fixed plate, the bottom of shell just is located two drill bit both sides and is provided with a degree of depth control lever respectively.

Working principle: according to the drawing, the border line of the box, and the border line of the opening are drawn on the wall. According to the depth of the holes, the length of the depth control rod is adjusted, an electric drill is started according to the boundary line of the holes, four holes are drilled first, then a saw plate is installed, the electric drill is started, the saw plate is driven to reciprocate by utilizing the rotary motion of a half-tooth connecting shaft, the wall body is cut, then the position is moved, and other side walls are cut. After four sides are cut, the central wall body is cut. Thus, the square hole of the wire box is formed.

Furthermore, the two ends of the outer side of the output end of the electric drill are fixedly connected with connecting blocks respectively, the upper part of the shell is fixedly connected with connecting blocks, connecting plates are jointly inserted between the connecting blocks positioned on the same side, and a gear control plate is arranged on the connecting plates.

Further, a plurality of hexagonal spindle tenons are sleeved outside the lower end of the spindle, the outer diameter of the spindle tenons at the bottom is smaller than that of the spindle tenons at the upper part, the spindle tenons at the upper part are used for being sleeved with a driving gear, the spindle tenons at the bottom are used for being connected with a half-tooth connecting shaft, and the half-tooth connecting shaft is also provided with a corresponding hexagonal shaft sleeve for being sleeved with the spindle tenons at the bottom.

Further, the shell comprises an upper part and a lower part, the cross sections of the upper part and the lower part are elliptical, and the shell consists of a rectangle and two semicircles positioned on the short side; the upper portion of the housing has a larger dimension than the lower portion of the housing, the lower portion of the housing being adapted to receive the sleeve.

Further, three gears for controlling the electric drill to work are arranged on the gear control plate, namely a first gear, a second gear and a third gear, wherein one gear is used for rotating drill bits at two sides, and the second gear is used for reciprocating the saw plate; the third gear is used for rotating the drill bits at two sides and simultaneously the saw plate reciprocates.

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

the wire box is provided with the holes, the damage to the secondary structure is small, the slotting is attractive, and the wire box is easy to fix.

Drawings

Fig. 1 is a schematic structural view of a square hole opening device for a junction box according to the present utility model.

Fig. 2 is a cross-sectional view of the square hole device for opening a junction box of the present utility model.

Fig. 3 is a schematic structural view of a square hole opening device of a junction box without connecting a drilling machine.

Fig. 4 is a schematic diagram of a transmission.

Fig. 5 is a schematic diagram of the spindle structure.

Fig. 6 is a schematic structural view of the half-tooth connecting shaft 8.

The figures are labeled as follows:

the drilling machine comprises a 1-electric drill, a 2-shell, a 3-main shaft, a 4-driving gear, a 5-driven gear, a 6-driven shaft, a 7-drill bit, an 8-half-tooth connecting shaft, a 9-shaft sleeve, a 10-saw plate, an 11-depth control rod, a 12-connecting block, a 13-connecting plate, a 14-main shaft tenon and a 15-fixing plate.

Detailed Description

The utility model is further illustrated below with reference to specific examples.

Example 1

As shown in fig. 1 and 2, a square hole opening device for a junction box comprises an electric drill 1, wherein the outer side of the output end of the electric drill 1 is connected with a shell 2, the output end of the electric drill 1 is connected with a main shaft 3, the main shaft 3 stretches into the shell 2 and is connected with a transmission device, as shown in fig. 4, the transmission device comprises a driving gear 4 sleeved on the outer side of the main shaft 3, two sides of the driving gear 4 are respectively meshed with a driven gear 5, the center of the driven gear 5 is connected with a driven shaft 6 in a penetrating way, the bottom of the driven shaft 6 stretches out of the shell 2 and then is connected with a drill bit 7, the main shaft 3 passes through the driving gear 4 and then is sleeved with a half-tooth connecting shaft 8, the bottom of the half-tooth connecting shaft 8 is provided with a half-circle gear, the half-circle gear is meshed with a shaft sleeve 9, two rows of racks which are parallel to each other are arranged on the inner wall of the shaft sleeve 9, the racks and the half-circle gears are designed in size so that the half-tooth connecting shaft 8 can rotate to enable the shaft sleeve 9 to reciprocate left and right, the bottom of the shaft sleeve 9 is detachably connected with a saw plate 10, the bottom of the saw plate 10 stretches out of the shell 2, the position corresponding to the shaft sleeve 9 is convenient to reciprocate left and right; the inside of shell 2 is equipped with two-layer fixed plate 15, driving gear 4 and driven gear 5 all set up between two-layer fixed plate 15, the bottom of shell 2 just is located two drill bit 7 both sides and is provided with a degree of depth control rod 11 respectively, and the length of degree of depth control rod 11 can be adjusted, can fix after the regulation.

Further, as shown in fig. 1 and 2, two ends of the outer side of the output end of the electric drill 1 are fixedly connected with connecting blocks 12 respectively, the upper portion of the housing 2 is fixedly connected with connecting blocks 12, connecting plates 13 are jointly inserted between the connecting blocks located on the same side, and a gear control board is arranged on the connecting plates 13.

Further, as shown in fig. 5, the outer side of the lower end of the spindle 3 is sleeved with a plurality of hexagonal spindle tenons 14, the outer diameter of the spindle tenons 14 at the bottom is smaller than that of the spindle tenons 14 at the upper part, the spindle tenons 14 at the upper part are used for sleeving the driving gear 4, the spindle tenons 14 at the bottom are used for being connected with the half-tooth connecting shaft 8, and the half-tooth connecting shaft 8 is also provided with a corresponding hexagonal shaft sleeve for sleeving the spindle tenons 14 at the bottom.

Further, the housing 2 includes an upper portion and a lower portion, the cross sections of the upper portion and the lower portion are elliptical, and each portion is composed of a rectangle and two semicircles located on the short side; the upper part of the housing 2 has a larger size than the lower part of the housing 2 for receiving the bushing 9.

Further, three gears for controlling the electric drill 1 to work are arranged on the gear control plate, namely a first gear, a second gear and a third gear, wherein the first gear is used for rotating the drill bits 7 on two sides, and the second gear is used for reciprocating the saw plate 10; three gears are used for the rotation of the two-sided drill bit 7 while the saw plate 10 reciprocates.

The following is the working principle of first-gear drilling and then third-gear saw plate rotary cutting: according to the drawing, the border line of the box, and the border line of the opening are drawn on the wall. According to the depth of the holes, the length of a depth control rod 11 is adjusted, an electric drill 1 is started according to the boundary line of the holes, the device is started to drill 4 holes on the periphery first, then a saw plate 10 is installed, an electric third gear (different positions of a main shaft drive different movements) is started, the saw plate 10 is driven to reciprocate by utilizing the rotary movement of a half-tooth connecting shaft, the wall body is cut, the positions are moved, and other side walls are cut. After four sides are cut, the central wall body is cut. Thus, the square hole of the wire box is formed.

Claims (5)

1. The utility model provides a junction box square hole opening device, its characterized in that includes electric drill (1), is connected with shell (2) in the output outside of electric drill (1), and the output of electric drill (1) is connected with main shaft (3), and main shaft (3) stretches into inside shell (2) and is connected with transmission, transmission is including cover driving gear (4) of locating main shaft (3) outside, the both sides of driving gear (4) have meshing respectively have driven gear (5), driven gear (5) center through connection has driven shaft (6), be connected with drill bit (7) after shell (2) are stretched out to the bottom of driven shaft (6), half tooth connecting axle (8) have been cup jointed after main shaft (3) pass driving gear (4), half tooth connecting axle (8) bottom is provided with half circle gear, half circle gear engagement has axle sleeve (9), and axle sleeve (9) inner wall is equipped with two rows of racks that are parallel to each other, and half tooth connecting axle (8) rotate and make axle sleeve (9) do left and right reciprocating motion, saw axle sleeve (9) bottom detachable connection has board (10), saw bar (10) bottom that stretches out of shell (2) and the bottom of bar-shaped hole is seted up to the corresponding position of the axle sleeve (9); the inside of shell (2) is equipped with two-layer fixed plate (15), driving gear (4) and driven gear (5) all set up between two-layer fixed plate (15), the bottom of shell (2) just is located two drill bits (7) both sides and is provided with a degree of depth control pole (11) respectively.

2. The square hole opening device for the junction box according to claim 1, wherein connecting blocks (12) are fixedly connected to two ends of the outer side of the output end of the electric drill (1) respectively, the connecting blocks (12) are fixedly connected to the upper portion of the shell (2), connecting plates (13) are jointly inserted between the connecting blocks located on the same side, and a gear control plate is arranged on each connecting plate (13).

3. The square hole opening device for the junction box according to claim 1, wherein a plurality of hexagonal spindle tenons (14) are sleeved outside the lower end of the spindle (3), the outer diameter of the spindle tenons (14) at the bottom is smaller than that of the spindle tenons (14) at the upper part, the spindle tenons (14) at the upper part are used for being sleeved with the driving gear (4), the spindle tenons (14) at the bottom are used for being connected with the half-tooth connecting shaft (8), and the half-tooth connecting shaft (8) is also provided with corresponding hexagonal shaft sleeves for being sleeved with the spindle tenons (14) at the bottom.

4. The square hole opening device for the junction box according to claim 1, wherein the housing (2) comprises an upper part and a lower part, the cross sections of the upper part and the lower part are elliptical, and the cross sections of the upper part and the lower part are composed of a rectangle and two semicircles positioned on the short side; the upper part of the housing (2) has a larger size than the lower part, the lower part of the housing (2) being intended to receive the bushing (9).

5. The square hole opening device for the junction box according to claim 2, wherein the gear control board is provided with three gears for controlling the electric drill (1) to work, namely a first gear, a second gear and a third gear, wherein the first gear is used for rotating the drill bits (7) on two sides, and the second gear is used for reciprocating the saw plate (10); the third gear is used for rotating the drill bits (7) on two sides and simultaneously the saw plate (10) reciprocates.